MODEL PWFY-P100VM-E-BU PWFY-EP100VM-E1-AU PWFY … · 1. GENERAL EQUIPMENT DESCRIPTIONS AIR TO...

AIR CONDITIONING SYSTEMS

MODEL

PWFY-P100VM-E-BUPWFY-EP100VM-E1-AUPWFY-EP100VM-E2-AU

PWFY-P-VM-E-BU, PWFY-EP-VM-E1-AU, PWFY-EP-VM-E2-AU

MEES20K026 1

CONTENTS AIR TO WATER

I.AIR TO WATER

1. GENERAL EQUIPMENT DESCRIPTIONS .............................................................................................. 21-1. Unit configuration table .................................................................................................................... 21-2. Operable temperature range ........................................................................................................... 21-3. Connectable outdoor unit/heat source unit capacity range.............................................................. 2

2. SPECIFICATIONS.................................................................................................................................... 3

3. EXTERNAL DIMENSIONS ....................................................................................................................... 7

4. CENTER OF GRAVITY ............................................................................................................................ 10

5. ELECTRICAL WIRING DIAGRAMS ......................................................................................................... 11

6. SOUND LEVELS ...................................................................................................................................... 15

7. VIBRATION LEVELS................................................................................................................................ 16

8. OPERATION TEMPERATURE RANGE................................................................................................... 17

9. CAPACITY TABLES ................................................................................................................................. 209-1. Correction by temperature ............................................................................................................... 209-2. Correction by total indoor................................................................................................................. 329-3. Correction by water volume ............................................................................................................. 339-4. Water pressure drop ........................................................................................................................ 349-5. Water pressure drop of Strainer only ............................................................................................... 34

10.ACCESSORIES ....................................................................................................................................... 35

11.OPTIONAL PARTS .................................................................................................................................. 3611-1.Solenoid valve kit............................................................................................................................. 3611-2.Remote controller ............................................................................................................................ 37

12.ELECTRICAL WORK ............................................................................................................................... 3812-1.General cautions ............................................................................................................................. 3812-2.Power supply for PWFY unit............................................................................................................ 3812-3.Power cable specifications .............................................................................................................. 3912-4.Connecting remote controller, indoor and outdoor transmission cables.......................................... 4012-5.Connecting electrical connections ................................................................................................... 41

13.CONTROL................................................................................................................................................ 4313-1.Transmission cable specifications ................................................................................................... 4313-2.Indoor unit address setting .............................................................................................................. 4413-3.External input/output function .......................................................................................................... 45

14.PIPING DESIGN ...................................................................................................................................... 4714-1.Solenoid valve kit piping design ...................................................................................................... 4714-2.WCB piping design .......................................................................................................................... 4814-3.Refrigerant charging calculation (PWFY-AU with R2 system)......................................................... 49

15.INSTALLATION........................................................................................................................................ 5115-1.How to calculate the necessary heating capacity............................................................................ 5115-2.Selecting an installation site ............................................................................................................ 5215-3.Securing installation and service space .......................................................................................... 5215-4.Installing the unit.............................................................................................................................. 5315-5.Refrigerant pipe and drain pipe specifications................................................................................. 5415-6.Connecting refrigerant pipes and drain pipes.................................................................................. 5515-7.Water pipe installation ..................................................................................................................... 57

0000005911.BOOK 1 ページ２０２０年７月８日　水曜日　午後１時２１分

MEES20K026

PWFY

-P-V

M-E

-BU

,EP-

VM-E

1-A

U, E

P-VM

-E2-

AU

2

1. GENERAL EQUIPMENT DESCRIPTIONS AIR TO WATER

I.AIR TO WATER1. GENERAL EQUIPMENT DESCRIPTIONS1-1. Unit configuration table

1-2. Operable temperature range

1-3. Connectable outdoor unit/heat source unit capacity range

*1 In case of WCB connection, the capacity range will be "50 to 130%".

*1 In case of WCB connection, the capacity range will be "50 to 130%".

Model PWFY-P100VM-E-BU PWFY-EP100VM-E1-AUPWFY-EP100VM-E2-AU

Outdoor unit

R2-Series PURY-P Y(S)NW

Y-SeriesPUHY-P Y(S)NWPUCY-P Y(S)KDPUHY-P Y(S)KD

Y-Series(High efficiency)

PUHY-EP Y(S)NWPUCY-EP Y(S)KDPUHY-EP Y(S)KD

R2-Series(High efficiency) PURY-EP Y(S)NW

R2-Series PURY-P Y(S)NWR2-Series

(High efficiency) PURY-EP Y(S)NW

ConnectionBC controller

BC controller: CMB-M104,106,108,1012,1016V-J1 (-TR)Main BC controller: CMB-M108,1012,1016V-JA1 (-TR)/CMB-P1016V-KA1 (-TR)Sub BC controller: CMB-M104,108V-KB1 (-TR)

WCB CMB-PW202V-J

<PWFY-P100VM-E-BU>PWFY with standard indoor units

Heating

Inlet water temperature R2-SeriesR2-Series (High efficiency) 10 to 70ºC

Outdoor temperature R2-SeriesR2-Series (High efficiency) -20 to 32ºCWB

<PWFY-EP100VM-E1-AU, PWFY-EP100VM-E2-AU>PWFY with standard indoor units

Cooling Heating

Inlet water temperature

R2-SeriesR2-Series (High efficiency) 10 to 35ºC 10 to 40ºC

Y-SeriesY-Series (High efficiency) 10 to 35ºC 10 to 40ºC

Outdoor temperature

R2-SeriesR2-Series (High efficiency) -5 to 46ºCDB -20 to 32ºCWB

Y-SeriesY-Series (High efficiency) -5 to 46ºCDB -20 to 15.5ºCWB

<PWFY-P100VM-E-BU>PWFY with standard indoor units

R2-SeriesR2-Series (High efficiency) 50 to 150%*1

<PWFY-EP100VM-E1-AU, PWFY-EP100VM-E2-AU>PWFY with standard indoor units

R2-SeriesR2-Series (High efficiency) 50 to 150%*1

Y-SeriesY-Series (High efficiency) 50 to 130%

<WCB>Connectable unit

CMB-PW202V-JPURY-(E)P200-350YLMPURY-(E)P200-300YNW

PQRY-P200-300YLM

MEES20K026

PWFY-P-VM

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U, EP-VM

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2. SPECIFICATIONS AIR TO WATER

2. SPECIFICATIONS

Model

Power sourcekWHeating capacity *1

*1*1

kcal / h(Nominal )BTU / hkWAW.B

dB<A>mm(in.) mm(in.)mm(in.)mm(in.)mm(in.)

mmin.kg(lbs)

kW

-

Power input

LiquidGas

Current inputfor outdoor unit

for PWFY-for heat source unit

Total capacity

Temp. range ofheating

Connectableoutdoor unit/heat source unit Model / Quantity

Sound pressure level (measured in anechoic room)Diameter of refrigerant pipeDiameter of water pipeField drain pipe size

External finishExternal dimension H × W × D

Net weightCompressor

MakerType

Starting methodMotor output

Circulating waterRange

Protection on Internal circuit(R134a)

High pressure protectionInverter circuit (COMP)CompressorType × original chargeRefrigerantControlR410aDesign pressureR134aWaterExternalDrawing

Standard attachment

Optional parts

Remark

Note: *1 Nominal heating conditions (PWFY conditions are indicated in the parentheses.)<R2-Series>

Outdoor temp. : 7°CDB/6°CWB (45°FDB / 43°FWB) Pipe length : 7.5 m (24-9/16 ft)

BTU/h = kW × 3,412

Level difference : 0 m (0 ft) cfm = m3/min x 35.31

(Inlet water temp. 65°C Water flow rate 2.15 m3/h)

<WR2-Series> Circulating water temp. : 20°C (68°F) Pipe length : 7.5 m (24-9/16 ft) Level difference : 0 m (0 ft) (Inlet water temp. for PWFY side 65°C Water flow rate 2.15 m3/h)

lbs = kg / 0.4536

* Due to continuing improvement, the above specifications may be subject to change without notice.* Install the outdoor unit (R2-Series) in an environment where the wet bulb temp. will not exceed 32°C.

* The unit is not designed for outside installations. * Please do not use the steel material for the water piping material. * The water circuit must use the closed circuit.

* Please do not use it as a drinking water. * Please always make water circulate or add the brine to the circulation water when the ambient temperature becomes 0°C or less. * Please always make water circulate or pull out the circulation water completely when not using it. * Please do not use ground water and well water.

* The specification data is subject to rounding variation.

Unit converter

LubricantOperation volume

InletOutlet

Accessory

WiringDocument

m3/h

MPaMPaMPa 1.00

Installation Manual, Instruction Book

800 (785 without legs) × 450 × 300

WKE94C229

Inverter1.0

Over-heat protection, Over-current protection

R134a × 1.1kg (0.50lbs)

10,80012.5

WKB94L762

NONE

44

NO

Strainer, Heat insulation material, wire × 1 set

PWFY-P100VM-E-BU1-phase 220-230-240V 50/60Hz

R3/4

MITSUBISHI ELECTRIC CORPORATION

NEO22

ø32 (1-1/4'')

Inverter rotary hermetic compressor

31-1/2" (30-15/16" without legs) × 17-3/4” × 11-13/16”59 (131)

Rc3/4

11.63 - 11.12 - 10.66

50~100% of outdoor unit/heat source unit capacityR2-Series

R2-Series (High efficiency)WR2-Series

ø15.88 (ø5/8") Brazed

-20~32°C (-4~90°F) R2-Series10~45°C (50~113°F) WR2-Series

ø9.52 (ø3/8") Brazed

42,700

10~70°C (50~158°F)

2.48

0.6~2.15

LEV 4.15

High pressure sensor, High pressure switch at 3.60 MPa (601 psi)

Discharge thermo protection, Over-current protection

3.60

Details on foundation work, duct work, insulation work, electrical wiring, power source switch, andother items shall be referred to the Installation Manual.

MEES20K026

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-20~32°C (-4~90°F) R2-Series

Model

Power sourcekW*1Heating capacitykcal / hBTU / hkWA

W.BW.B

*1(Nominal)*1

Power inputCurrent inputOutdoor temp.for outdoor unit

Temp. range of heating

W.B

--

-Inlet Water temp.for PWFY

Circulating Water temp.for heat source unit

kW*2Cooling capacitykcal / hBTU / hkWAD.B

*2(Nominal)*2


Temp. range of coolingD.BD.B

-Inlet Water temp.for PWFYTotal capacityModel / Quantity

Connectableoutdoor unit/heat source unit

Sound pressure level (measured in anechoic room) dB<A>mm(in.)mm(in.)

Diameter of refrigerant pipe

mm(in.)mm(in.)

Diameter of water pipe

mm(in.)

mm

Field drain pipe size


in. kg(lbs)Net weight


Design pressureWaterR410a

Drawing

Standard attachment

Optional parts

Remark

Note:

*2 Nominal cooling conditions (PWFY conditions are indicated in the parentheses.)

*1 Nominal heating conditions (PWFY conditions are indicated in the parentheses.)

Outdoor temp. : 7°CDB/6°CWB (45°FDB/43°FWB)

Outdoor temp. : 35°CDB (95°FDB)Pipe length : 7.5 m (24-9/16 ft.)

Pipe length : 7.5 m (24-9/16 ft.)

Level difference : 0 m (0 ft.)


<Y/HP (ZUBADAN)/R2-Series>


Circulating water temp. : 20°C (68°F)Pipe length : 7.5 m (24-9/16 ft.) Level difference : 0 m (0 ft.)

<WY/WR2-Series>

<WY/WR2-Series>

(Inlet water temp. 30°C, Water flow rate 4.30 m3/h) (Inlet water temp. for PWFY side 30°C, Water flow rate 4.30 m3/h)

(Inlet water temp. 23°C, Water flow rate 3.86 m3/h)

Circulating water temp. : 30°C (86°F)Pipe length : 7.5 m (24-9/16 ft.)Level difference : 0 m (0 ft.)(Inlet water temp. for PWFY side 23°C, Water flow rate 3.86 m3/h)

* Install the outdoor unit (R2-Series) in an environment where the wet bulb temp. will not exceed 32°C

* Due to continuing improvement, the above specifications may be subject to change without notice.

* The unit is not designed for outside installations.

* Please don't use the steel material for the water piping material. * The water circuit must use the closed circuit. * Please always make water circulate or add the brine to the circulation water when the ambient temperature becomes 0°C or less.

* Please always make water circulate or pull out the circulation water completely when not using it.

InletOutlet

Operation Volume

LiquidGas

m3/h

MPaMPa

Accessory

ExternalWiringDocument

Details on foundation work, duct work, insulation work, electrical wiring, power source switch, and other items shall be referred to the Installation Manual.

Unit converter

38,200

10~35°C (50~95°F)

0.015

ø15.88 (ø5/8") Brazedø9.52 (ø3/8") Brazed

Rc1 (Rc3/4 without expansion joint)


R1(R3/4 without expansion joint)

NO

WKJ94T340

0.068 - 0.065 - 0.063

50~100% of outdoor / heat source unit capacity

Y-SeriesY-Series (High efficiency)

R2-SeriesR2-Series (High efficiency)

ZUBADAN-SeriesWY-Series

WR2-Series

-5~46°C (23~115°F) R2-Series-5~46°C (23~115°F) Y-Series

-5~43°C (23~110°F) HP (ZUBADAN)-Series

1.8~4.30

1.00

Strainer, Heat insulation material, Expansion joint, Flow switch x 1set. Buffer material.

ø32 (1-1/4'')

PWFY-EP100VM-E1-AU1-phase 220-230-240V 50/60Hz

9,60011.2

29

12.5

800 (785 without legs) × 450 × 300

WKE94C951

4.15

Solenoid valve kit: PAC-SV01PW-E

10,80042,700

-25~15.5°C (-13~60°F) HP (ZUBADAN) -Series-20~15.5°C (-4~60°F) Y-Series

10~45°C (50~113°F) WR2-Series10~45°C (50~113°F) WY-Series

10~40°C (50~104°F) R2/Y/HP (ZUBADAN) /WR2/WY-Series

--



0.0150.068 - 0.065 - 0.063

31-1/2" (30-15/16" without legs) × 17-3/4” × 11-13/16”33 (73)

* Please do not use it as a drinking water.

* Please do not use ground water and well water.

BTU/h = kW × 3,412 cfm = m3/min x 35.31 lbs = kg / 0.4536

MEES20K026

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BTU/h = kW × 3,412 cfm = m3/min x 35.31 lbs = kg / 0.4536


Y-SeriesY-Series (High efficiency)

R2-SeriesR2-Series (High efficiency)

ZUBADAN-SeriesWY-Series

WR2-Series

Model

Power sourcekW*1Heating capacitykcal / hBTU / hkWA

W.BW.B

*1(Nominal)*1


Temp. range of heating

W.B

-

--

Inlet Water temp.for PWFY


kW*2Cooling capacitykcal / hBTU / hkWAD.B

*2(Nominal)*2


Temp. range of coolingD.BD.B

-Inlet Water temp.for PWFYTotal capacityModel / Quantity

Connectableoutdoor unit/heat source unit

Sound pressure level (measured in anechoic room) dB<A>mm(in.)mm(in.)

Diameter of refrigerant pipe

mm(in.)mm(in.)

Diameter of water pipe

mm(in.)

mm

Field drain pipe size


in. kg(lbs)Net weight


Design pressureWaterR410a

Drawing

Standard attachment

Optional parts

Remark

Note:

*2 Nominal cooling conditions (PWFY conditions are indicated in the parentheses. )

*1 Nominal heating conditions (PWFY conditions are indicated in the parentheses. )

Outdoor temp. : 7°CDB/6°CWB (45°FDB/43°FWB)

Outdoor temp. : 35°CDB (95°FDB)Pipe length : 7.5 m (24-9/16 ft.)

Pipe length : 7.5 m (24-9/16 ft.)



<Y/HP (ZUBADAN/R2-Series>


Circulating water temp. : 20°C (68°F)Pipe length : 7.5 m (24-9/16 ft.)Level difference : 0 m (0 ft.)

<WY/WR2-Series>

<WY/WR2-Series>

(Inlet water temp. 30°C, Water flow rate 4.30 m3/h) (Inlet water temp. for PWFY side 30°C, Water flow rate 4.30m3/h)

(Inlet water temp. 23°C, Water flow rate 3.86m3/h)

Circulating water temp. : 30°C (86°F)Pipe length : 7.5 m (24-9/16 ft.)Level difference : 0 m (0 ft.) (Inlet water temp. for PWFY side 23°C, Water flow rate 3.86m3/h)

* Install the outdoor unit (R2-Series) in an environment where the wet bulb temp. will not exceed 32°C

* Due to continuing improvement, the above specifications may be subject to change without notice.

* The unit is not designed for outside installations.

* Please don't use the steel material for the water piping material. * The water circuit must use the closed circuit.* Please always make water circulate or add the brine to the circulation water when the ambient temperature becomes 0°C or less.

* Please always make water circulate or pull out the circulation water completely when not using it.

InletOutlet

Operation Volume

LiquidGas

m3/h

MPaMPa

Accessory

ExternalWiringDocument

Details on foundation work, duct work, insulation work, electrical wiring, power source switch, and other items shall be referred to the Installation Manual.

Unit converter

38,200

10~35°C (50~95°F)

0.025 - 0.026 - 0.027

ø15.88 (ø5/8") Brazedø9.52 (ø3/8") Brazed

Rc1 (Rc3/4 without expansion joint)


R1 (R3/4 without expansion joint)

NO

WKJ94T340

0.138 - 0.139 - 0.140

50~100% of outdoor / heat source unit capacity

-5~46°C (23~115°F) R2-Series-5~46°C (23~115°F) Y-Series

-5~43°C (23~110°F) HP (ZUBADAN)-Series

1.8~4.30

1.00

Strainer, Heat insulation material, Expansion joint, Flow switch × 1 set, Buffer material.

ø32 (1-1/4'')

PWFY-EP100VM-E2-AU1-phase 220-230-240V 50/60Hz

9,60011.2

29

12.5

800 (785 without legs) × 450 × 300

WKE94C953

4.15

NONE

10,80042,700

-25~15.5°C (-13~60°F) HP (ZUBADAN) -Series-20~15.5°C (-4~60°F) Y-Series


10~40°C (50~104°F) R2/Y/HP (ZUBADAN) /WR2/WY-Series

--



0.025 - 0.026 - 0.0270.138 - 0.139 - 0.140

-20~32°C (-4~90°F) R2-Series

31-1/2" (30-15/16" without legs) × 17-3/4” × 11-13/16”36 (80)

* Please do not use it as a drinking water.

* Please do not use ground water and well water.

MEES20K026

PWFY

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Model

Power sourceNumber of branch

Power input

Current

External finish

Connectable outdoor unit/heat source unit

Connectable unit capacity

External dimension H x W x D

Field drain pipe sizeNet weightAccessories

kW

A

TotalIndoor / PWFYbranchPWFY branchmm(in.)

mm(in.)mm(in.)

mm(in.)

mm(in.)

kg(lbs)

Refrigerantpipingdiameter

Tooutdoor unit/heat sourceunitToindoor/PWFY unit

High press. pipeLow press. pipe

Liquid pipe

Gas pipe

Note: *1. For installation/foundation work, electrical connection work, insulation work, and power source switch etc., refer to the Installation Manual. *2. The equipment is for R410A refrigerant. *3. Install this product in a location where noise (refrigerant noise) emitted by the unit will not disturb the neighbors. (For use in quiet environments with low background noise, position the Water system Connection Box at least 5m away from any indoor units.) *4. Install the unit horizontally. *5. The indoor / PWFY unit branch is for cooling / heating. The indoor / PWFY unit cannot be simultaneously operated in different operation modes. *6. The PWFY unit branch is for the heating only. *7. Seal the unused branch using the optional cover cap (CMY-S202-J).

PURY-(E)P200/250/300/350YLMPURY-(E)P200/250/300YNW

PQRY-P200/250/300YLM

Cooling : 0.019/0.020/0.021Heating : 0.020/0.022/0.024

Cooling : 0.018/0.019/0.019Heating : 0.019/0.020/0.021

Cooling : 0.09/0.09/0.09Heating : 0.10/0.10/0.10

Cooling : 0.09/0.09/0.09Heating : 0.09/0.09/0.09

Galvanized steel plate(Lower part drain pan painting N1.5)

CMB-PW202V-J

1N ~ 220/230/240V50Hz 60Hz

20 (45)

2

O.D. 32mm (1-1/4" )

284 x 648 x 432 (11-3/16" x 25-9/16" x 17-1/16" )

50% ~ 130% of outdoor unit/heat source unit

up to 130% of outdoor unit/heat source unit

up to 100% of outdoor unit/heat source unit

Total down-stream Indoor unit capacity

Connectable outdoor unit capacity

ø19.05 (ø3/4" ) Brazed

·Drain Connection pipe (with flexible hose and insulation)·Refrigerant connection pipe

P200ø15.88 (ø5/8" ) Brazed

ø15.88 (ø5/8" )Brazed

~P140ø9.52 (ø3/8" )

Brazedø19.05 (ø3/4" )

Brazed

P141~P200ø9.52 (ø3/8" )

Brazedø22.2 (ø7/8" )

Brazed

P201~P300ø9.52 (ø3/8" )

Brazedø28.58 (ø1-1/8" )

Brazed

P301~P400ø12.70 (ø1/2" )

Brazedø28.58 (ø1-1/8" )

Brazed

P401~ø15.88 (ø5/8" )

Brazed

ø22.2 (ø7/8" ) Brazed

P250/P300ø19.05 (ø3/4" ) Brazed

ø28.58 (ø1-1/8" ) Brazed

P350ø19.05 (ø3/4" ) Brazed


MEES20K026

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3. EXTERNAL DIMENSIONS AIR TO WATER

3. EXTERNAL DIMENSIONS

Pip

ing

spac

e(r

ight

sid

e)

Fig.

A

Ser

vice

spa

ce(fr

ont s

ide)

Top

view

300

400

600

ø27

Kno

ckou

t hol

e<H

ole

for e

xter

nal w

iring

out

put>

Dra

in (R

1 sc

rew

)

Con

trol b

ox

Wat

er o

utle

t(R

C3/

4 sc

rew

)

ø27

Kno

ckou

t hol

e<H

ole

for e

xter

nal w

iring

inpu

t>

ø27

Kno

ckou

t hol

e<H

ole

for p

ower

sup

ply>

ø27

Kno

ckou

t hol

e<H

ole

for c

ontro

l wiri

ng>

Ser

vice

pan

el

Top

view

Rig

ht s

ide

view

Fron

t vie

w

2X2-

ø14

Hol

e

Con

nect

ion

pipe

of o

utdo

or u

nit

(Liq

uid)

ø15.

88 <

Bra

zed>

ø9.5

2 

Con

nect

ion

pipe

of o

utdo

or u

nit

(Gas

)

Wat

er in

let

(R3/

4 sc

rew

)

525

(Mou

ntin

g pi

tch)

(Mounting pitch)205

800300

450

500

5535 35

919113

4

48046

60 140100 19180 165

102

54

184

114

Not

e 1.

Ens

ure

no w

ater

or d

ebris

can

ent

er th

e un

it th

roug

h an

y ga

ps a

roun

d

w

iring

or p

ipin

g.

2.E

nsur

e ad

equa

te b

oth

serv

ice

and

pipi

ng s

pace

as

show

n in

to F

ig A

.

3.P

leas

e al

way

s m

ake

wat

er c

ircul

ate

or a

dd th

e br

ine

to th

e ci

rcul

atio

n w

ater

w

hen

the

ambi

ent t

empe

ratu

re b

ecom

es 0

°C o

r bel

ow.

4

.The

uni

t is

not d

esig

ned

for o

utsi

de in

stal

latio

ns.

5

.Ple

ase

alw

ays

mak

e w

ater

circ

ulat

e or

rem

ove

all c

ircul

atio

n

w

ater

com

plet

ely

whe

n no

t in

oper

atio

n.

6

.The

wat

er c

ircui

t mus

t be

the

clos

ed c

ircui

t.

7.P

leas

e do

n't u

se th

e st

eel m

ater

ial f

or th

e w

ater

pip

ing.

8

.Con

nect

the

stra

iner

as

acce

ssor

y fo

r uni

t to

wat

er in

let p

ipe.

<Acc

esso

ries>

●Y-ty

pe s

train

er (R

C3/

4) ··

····

····

····

····

····

····

1pc

.●H

eat I

nsul

atio

n m

ater

ial ·

····

····

····

····

····

····

1pc

.●W

ire ·

····

····

····

····

····

····

····

····

····

····

····

····

····

·· 1

pc.

Unit: mmPWFY-P100VM-E-BU

MEES20K026

PWFY

-P-V

M-E

-BU

,EP-

VM-E

1-A

U, E

P-VM

-E2-

AU

8


Fron

t view

Wat

er o

utle

t(R

C3/

4 sc

rew

)

Con

nect

ion

pipe

of o

utdo

or u

nit

(Gas

)

ø27

Kno

ckou

t hol

e<H

ole

for e

xter

nal w

iring

inpu

t>

ø27

Kno

ckou

t hol

e<H

ole

for e

xter

nal w

iring

out

put>

Exp

ansi

on jo

int (

RC

3/4

to R

C1)

is

ø15.

88 <

Bra

zed>

ø27

Kno

ckou

t hol

e<H

ole

for p

ower

sup

ply>

Wat

er in

let

(R3/

4 sc

rew

)

Con

nect

ion

pipe

of o

utdo

or u

nit

(Liq

uid)

ø9.5

2 

Dra

in (R

1 sc

rew

)

Con

trol b

ox

Ser

vice

pan

el

(Mou

ntin

g pi

tch)

(Mounting pitch)

Righ

t side

view

ø27

Kno

ckou

t hol

e<H

ole

for c

ontro

l wiri

ng>

Top

view

man

dato

ry a

cces

sory

.

Exp

ansi

on jo

int (

RC

3/4

to R

C1)

ism

anda

tory

acc

esso

ry.

<Acc

esso

ries>

●Y-ty

pe s

train

er(R

C3/

4)··

····

····

····

·· 1

pc.

●Hea

t Ins

ulat

ion

mat

eria

l ····

····

····

·· 1

pc.

●Exp

ansi

on jo

int·

····

····

····

····

····

····

2pc

s.

[Fro

m R

C3/

4 to

RC

1]●F

low

sw

itch ·

····

····

····

····

····

····

····

· 1se

t●B

uffe

r mat

eria

l····

····

····

····

····

····

·· 1

pc.

Not

e 1.

Ens

ure

no w

ater

or d

ebris

can

ent

er th

e un

it th

roug

h an

y ga

ps a

roun

d w

iring

or

pip

ing.

2.E

nsur

e ad

equa

te b

oth

serv

ice

and

pipi

ng s

pace

, as

show

n in

Fig

A.

3.P

leas

e al

way

s m

ake

wat

er c

ircul

ate

or a

dd th

e br

ine

to th

e ci

rcul

atio

n w

ater

w

hen

the

ambi

ent t

empe

ratu

re b

ecom

es 0

°C o

r bel

ow.

4.Th

e un

it is

not

des

igne

d fo

r out

side

inst

alla

tions

.5.

Ple

ase

alw

ays

mak

e w

ater

circ

ulat

e or

rem

ove

all c

ircul

atio

n w

ater

com

plet

ely

w

hen

not i

n op

erat

ion.

6.Th

e w

ater

circ

uit m

ust b

e th

e cl

osed

circ

uit.

7.P

leas

e do

n't u

se th

e st

eel m

ater

ial f

or th

e w

ater

pip

ing.

8.C

onne

ct th

e st

rain

er a

s ac

cess

ory

for u

nit t

o w

ater

inle

t pip

e.

Top

view

Pip

ing

spac

e(r

ight

sid

e)

Ser

vice

spa

ce(fr

ont s

ide)

Fig.

A

300

205

500

450

525

35

91 91

3555

206

5413

446

8014060480 102

165

800

114

191100

2X2-

ø14

Hole

400

300 600

Unit: mmPWFY-EP100VM-E1-AU, PWFY-EP100VM-E2-AU

MEES20K026

PWFY-P-VM

-E-BU

,EP-VM-E1-A

U, EP-VM

-E2-AU

9


Con

nect

ion

pipe

of

PW

FY (G

as)

Con

nect

ion

pipe

of

PW

FY (L

iqui

d)

Con

nect

ion

pipe

of

indo

or u

nit/P

WFY

(Liq

uid)

Con

nect

ion

pipe

of

indo

or u

nit/P

WFY

(Gas

)

Liqu

id li

neIn

door

uni

t/PW

FY(C

oolin

g/H

eatin

g)PW

FY(H

eatin

g on

ly)G

as li

ne

Liqu

id li

ne

Gas

line

(Lifting bolt pitch)

(Lift

ing

bolt

pitc

h)

250

700

200

200

Acce

ssdo

or45

0

~P30

0: ø

9.52

<Bra

zed>

(use

atta

chm

ent p

ipe)

P301

~P40

0: ø

12.7

<Bra

zed>

(use

atta

chm

ent p

ipe)

P401

~: ø

15.8

8 

~P14

0: ø

15.8

8 (us

e at

tach

men

t pip

e)P1

41~P

200:

ø19

.05<

Braz

ed>(

use

atta

chm

ent p

ipe)

P201

~P30

0: ø

22.2

<Bra

zed>

(use

atta

chm

ent p

ipe)

P301

~: ø

28.5

8 (us

e at

tach

men

t pip

e)

~P14

0: ø

15.8

8 (us

e at

tach

men

t pip

e)P1

41~P

200:

ø19

.05<

Braz

ed>

P201

~P30

0: ø

22.2

<Bra

zed>

(use

atta

chm

ent p

ipe)

~P30

0: ø

9.52

<Bra

zed>

Dra

in h

ose(

Acc

esso

ry)

Ban

d(A

cces

sory

)

C

onne

ctio

n pi

pe o

f out

door

uni

t (Lo

w p

ress

ure)

Con

nect

ion

pipe

of o

utdo

or u

nit (

Hig

h pr

essu

re)

12

14

30

ø31

27

Y

X

Dta

il of

Y s

ectio

n

284

648

90

Dra

in p

ipin

gV

P-2

5 co

nnec

tion

Con

trol b

ox

200

255

Det

ail o

f X s

ectio

n

298

702

190

423

300

252

10358

90

127

21

90181

255

70 362

103

PURY

/PQR

Y-P2

00: ø

19.0

5 (us

e at

tach

men

t pipe

)PU

RY/P

QRY-

P250

,P30

0: ø

22.2

<Bra

zed>

PURY

-P35

0: ø

28.5

8 (us

e at

tach

men

t pipe

)

PURY

/PQR

Y-P2

00: ø

15.8

8 (us

e at

tach

men

t pipe

)PU

RY-P

250,

P300

,P35

0: ø

19.0

5 PQ

RY-P

250,

P300

: ø19

.05<

Braz

ed>

<Acc

esso

ries>

Ref

riger

ant<

Low

pre

ssur

e> c

onn.

pip

eR

efrig

eran

t<H

igh

pres

sure

> co

nn. p

ipe

Ref

riger

ant<

Gas

> co

nn. p

ipe

Ref

riger

ant<

Liqu

id>

conn

. pip

eD

rain

hos

e(V

P-2

5 co

nnec

tion)

Hos

e ba

ndTi

e ba

nd

2pcs

.1p

c.6p

cs.

2pcs

.1p

c.1p

c.1p

c.

Not

e1. S

uspe

nsio

n bo

lt (ø

10),

was

her (

M10

), an

d nu

t (M

10)

prep

are

in th

e fie

ld.

2

. Tak

e no

tice

of s

ervi

ce s

pace

as

follo

ws.

(Ple

ase

give

atte

ntio

n no

t to

occu

py s

ervi

ce

spac

e by

letti

ng d

ucts

and

pip

es th

roug

h.)

3

. Ins

tall

this

pro

duct

in a

loca

tion

whe

re n

oise

(ref

riger

ant n

oise

) em

itted

by

the

unit

will

not

dis

turb

the

neig

hbor

s.(F

or u

se in

qui

et e

nviro

men

ts w

ith lo

w b

ackg

roun

d no

ise,

pos

ition

the

BC

CO

NTR

OLL

ER

at l

east

5m

aw

ay fr

om a

ny in

door

uni

ts.)

4

. Ins

tall

the

unit

horiz

onta

lly.

5

. The

indo

or u

nit/P

WFY

bra

nch

is fo

r coo

ling/

heat

ing.

The

indo

or u

nit/P

WFY

cann

ot b

e si

mul

tane

ousl

y op

erat

ed in

diff

eren

t ope

ratio

n m

odes

.

6. T

he P

WFY

uni

t bra

nch

is fo

r the

hea

ting

only.

Ser

vice

spa

ce

Unit: mmCMB-PW202V-J

MEES20K026

PWFY

-P-V

M-E

-BU

,EP-

VM-E

1-A

U, E

P-VM

-E2-

AU

10

4. CENTER OF GRAVITY AIR TO WATER

4. CENTER OF GRAVITY

PWFY-P100VM-E-BU

PWFY-EP100VM-E1/E2-AU

X Y ZUnit: mm

272 355 119ModelPWFY-P100VM-E-BU

450 300

800

Y

X Z

500

525

13 47 205

X295265

ModelPWFY-EP100VM-E1-AUPWFY-EP100VM-E2-AU

Z106103

Y345353

20513

X

Y

800

500

525

300450

Z

47

Unit: mm


MEES20K026

PWFY-P-VM

-E-BU

,EP-VM-E1-A

U, EP-VM

-E2-AU

11

5. ELECTRICAL WIRING DIAGRAMS AIR TO WATER

5. ELECTRICAL WIRING DIAGRAMS

M

4-20

mA

4-20

mA

gray

21

gray

blac

k

To o

utdo

or u

nit/

B

C c

ontro

ller/W

CB

To M

A re

mot

eco

ntro

ller

Pow

er S

uppl

y~2

20/2

30/2

40V

50H

z/60

Hz

32

1

blue

red

yello

w/g

reen

blue

red

CN

4

63LS

CN

63H

S

1

13

2

2 3

THH

S

12

CN

63LS

12

3

t°TH

8

21C

N40

3re

dt°

TH6

1 2C

N40

4bl

ack

t°

31

CT1

Mot

er

3~

CY

N

RS

4

MS

RS

3

(Com

pres

sor)

CN

3Abl

ue

U

t°

red

yello

wTH

22C

N40

5

IPM

WVU

blac

k

1

63H

S

7

21 3

12

CN

3

21

t°

CN

401

CN

22

56

t°

red

CN

52 1

TH11

1 2

TH13

21 whi

te

CN

402

gree

n

red

56

RS1

blac

k

2

CN

52C

R1

LOU

CN

AC

2

red 2

CN

5 1

12

red

blue

red

LEV2

WM

LI24V

blue

+C

B3

Z2

1

UCT1

LEV1

W

1

CN

2

63H

1

6 5

CNAC

2

red

1

CX

2

L

CN

506A

L3

N

6 5

N

CN

-E1

CN

631

DS

A

pink

E2

31

E1

4 3 2 1

CY

4

P

CY

3

31

L4

Z1

NI

CB

1 +

1

TB2

CN

661

2

L2

3

X50

6

W

4

CN

4

blue

U

CN

52C

12

+

CX

3

INV

cont

rol

circu

it

PFC

E3

1

L1

2

M

ZNR

01

AC

L

CY

1C

Y2

CT2

Noi

seFi

lter

red

Fan

mot

or

1 3

(DC

)

CX

5

CY

P

CIS

CX

6

12

7

V

yello

w

LED

3:Li

t whe

n po

wer

ed

INV

Boa

rd

Con

trol B

oard

CB

2

(DC

)

CY

6

S

CX

4

R

CN

AC

1

M

CN

LVA

NO

Fan

mot

or

3

12

RS2

CY

5

P

CN

LVB

blue

CX

1

CX

7

CN

506B

CP

S +

RS

F01

AC25

0V6.

3A

F631

DC

700V

4A

Powe

rSu

pply

circu

it

blue

red

TB5

M1

M2

S(SH

IELD

)S(

SHIE

LD)

TB15

yello

wpu

rple

blac

kor

ange

gray

red

blac

kw

hite

gray

gray

52C

1 2C

N2M

blue

31

*4TB

141B

TB14

2B

IN6

COM+

OUT5

TB14

2C

OUT7

OUT6

X515

X517

X516

IN8

IN5

IN7

TB14

2A

X514

OUT2

X512

X511

X513

OUT1

OUT3

OUT4

TB14

1A

*5*6

*7

IN3

IN4

COM+

LED

4:R

emot

e co

ntro

ller

w

hen

pow

ered

SWU1

10

SW1

5

ON OFF

1

Unit a

ddre

ss se

tting(

SWU1

,SW

U2)

Conn

ectio

n No

.(SW

U3)

LED1

Disp

lay se

tting(

SW2)

Func

tion

settin

g(SW

1,SW

3,SW

4)SW

P3

SW5

SWP1

SWU3

SWP2

SWU2

OFF

ON

110

SW4

OFF

ON

110

LED

1OF

FON

1

SW3

OFF

ON

110

SW2

gray

CN

421

blac

k

31

CN

422

blue

IN1

IN2

31

CN

421

blac

k

31

CN

422

blue

22

22

BC

con

trolle

r/WC

B/o

utdo

or u

nit

Boo

ster

uni

tLi

near

expa

nsio

n va

lve

LEV

1WLE

V2WIN

7A

nti-f

reez

eIN

6H

eatin

g E

CO

Sym

bol

Func

tion

CO

M+

Com

mon

IN5

Hot

wat

er

IN4

Ope

ratio

n O

N/O

FFCo

nnec

tion

dem

and

Sym

bol

IN3

Func

tion

Sym

bol

Pum

p in

terlo

ckFu

nctio

nIN

1

*4 T

B14

1A(o

utpu

t)

*5 T

B14

2A(in

put)

*6 T

B14

2B(in

put)

*7 T

B14

2C(in

put)

Func

tion

Sym

bol

OU

T1O

pera

tion

ON

/OFF

OU

T2D

efro

stO

UT3

Com

pres

sor

OU

T4E

rror

sig

nal

<HIG

H V

OLT

AG

E W

AR

NIN

G>

·Con

trol b

ox h

ouse

s hi

gh-v

olta

ge p

arts

. B

efor

e in

spec

ting

the

insi

de o

f the

con

trol b

ox, t

urn

off t

he p

ower

, k

eep

the

unit

off f

or a

t lea

st 1

0 m

inut

es,a

nd c

onfir

m th

at th

e vo

ltage

CN

631

on C

ontro

l Boa

rd h

as d

ropp

ed to

DC

20V

or l

ess.

<CA

UTI

ON

FO

R IN

STA

LLAT

ION

> ·P

rior t

o in

stal

latio

n,re

ad th

e In

stal

latio

n M

anua

l car

eful

ly.*1

.Sin

gle-

dotte

d lin

es in

dica

te w

iring

not

sup

plie

d w

ith th

e un

it.*2

.Dot

-das

h lin

es in

dica

te th

e co

ntro

l box

bou

ndar

ies.

*3.F

asto

n te

rmin

als

have

a lo

ckin

g fu

nctio

n.

Mak

e su

re th

e te

rmin

als

are

secu

rely

lock

ed in

pla

ce a

fter i

nser

tion.

P

ress

the

tab

on th

e te

rmin

als

to re

mov

ed th

em.

TH8

wat

er o

utle

t tem

pTH

6w

ater

inle

t tem

pTH

22liq

uid

pipe

tem

pTH

13E

vapo

rato

r out

let t

emp

Com

pres

sor d

isch

arge

tem

pTH

11Th

erm

isto

rTB

15M

A re

mot

e co

ntro

ller

TB5

Out

door

uni

t/BC

con

trolle

r/WC

B

AC

reac

tor

Pre

ssur

esw

itch

Hig

h pr

essu

re s

witc

h(H

igh

pres

sure

pro

tect

ion

for t

he b

oost

er u

nit)

Dis

char

ge p

ress

ure

Low

pre

ssur

e

TB2

CT1,

CT2

AC

L

THH

S

Mag

netic

rela

y(m

ain

circ

uit)

Cur

rent

sen

sor(

AC

)

Exp

lana

tion

Term

inal

bloc

kP

ower

sup

ply

IGB

T te

mp

Pre

ssur

ese

nsor

Sym

bol

63H

1

63H

S63

LS52

C

<Sym

bol e

xpla

natio

n>

PWFY-P100VM-E-BU

MEES20K026

PWFY

-P-V

M-E

-BU

,EP-

VM-E

1-A

U, E

P-VM

-E2-

AU

12


TH8

TH6

TH23

t°t°t°

blue

CN

2M2121

CN

402

gree

n

21C

N40

3re

d

12C

N40

4bl

ack

yello

wC

N40

5t°

TH22

12

S(SH

IELD)

2M2

1M1

To M

A re

mot

eco

ntro

ller

To o

utdo

or u

nit/

B

C c

ontro

ller

Pow

er S

uppl

y~2

20/2

30/2

40V

50H

z/60

Hz

NL

Uni

t add

ress

set

ting(

SW

U1,

SW

U2)

Con

nect

ion

No.

(SW

U3)

LED

1

TB15

TB5

ZNR1 U

DS

A1

CN1

1 3

SWU2SW

U1SW

P3

SWP2

SWP1

OFF

ON1

10

SW4

OFF

ON1

10

SW3

OFF

ON1

10

SW1

OFF

ON1

10

SW2

LED

4：R

emot

e co

ntro

ller

　

whe

n po

wer

ed5

1234

X50

2

CN50

7

31

M56

ON OFF 1SW

5

SWU3

LED

3：Li

t whe

n po

wer

ed

Con

trol B

oard

CN

LVB

LEV1

Wa

TB2

SV

1

DS

A B

oard

CN

3Tre

d13

T01

ZNR

01

31

CN50

2bla

ck

12

CNAC

red

U

F01

AC25

0V6.3

A T

LED

1 D

ispl

ay s

ettin

g(SW

2)Fu

nctio

n se

tting

(SW

1,SW

3,SW

4,SW

5)

OUT4

OUT3

OUT2

X514

X513

X512

TB14

1A

OUT1

X511

333

33

22

22

111

11

CN

3A

CN

421

CN

421

4-20

mA

4-20

mA

CN

422

CN

422

blue

blac

kbl

ack

blue

blue

TB14

2C

CO

M+

IN6

IN8

CO

M+

IN5

IN7

TB14

2B

X516

X517

X515 OU

T6OUT7

OUT5

TB14

1B

red

red

gray

blue

yello

w/g

reen

TB14

2A IN2

IN3

IN1

IN4

*4

*5*6

*7

oran

geye

llow

blac

kpu

rple

TB2

LEV

1Wa

SV

1

TB5

TB15OU

T1

IN1

IN3

CO

M+

IN4

IN5

IN6

IN7

IN8

OU

T2

TH22

TH23

TH6OU

T4

TH8

Exp

lana

tion

Func

tion

Func

tion

Func

tion

Func

tion

Term

inal

bloc

k

Line

arex

pans

ion

valv

e

Sol

enoi

d va

lve

Pow

er s

uppl

y

BC

con

trolle

r/out

door

uni

tFo

r ope

ning

/clo

sing

the

bypa

ss c

ircui

t

Out

door

uni

t/BC

con

trolle

rM

A re

mot

e co

ntro

ller

Ope

ratio

n O

N/O

FF

Flow

sw

itch

Con

nect

ion

dem

and

Com

mon

Ope

ratio

n O

N/O

FF

Hea

ting

Hea

ting

EC

OA

nti-f

reez

eC

oolin

g

Def

rost

liqui

d pi

pe te

mp

gas

pipe

tem

pw

ater

inle

t tem

p

Err

or s

igna

l

wat

er o

utle

t tem

p

Sym

bol

Sym

bol

Sym

bol

Sym

bol

Sym

bol Th

erm

isto

r

<Sym

bol e

xpla

natio

n>

<CA

UTI

ON

FO

R IN

STA

LLAT

ION

> ·

Prio

r to

inst

alla

tion,

read

the

Inst

alla

tion

Man

ual c

aref

ully.

*1.S

ingl

e-do

tted

lines

indi

cate

wiri

ng n

ot s

uppl

ied

with

the

unit.

*2.D

ot-d

ash

lines

indi

cate

the

cont

rol b

ox b

ound

arie

s.*3

.TB

141A

(out

put)

*4.T

B14

2A(in

put)

*5.T

B14

2B(in

put)

*6.T

B14

2C(in

put)

OU

T3 is

no

func

tion.

PWFY-EP100VM-E1-AU

MEES20K026

PWFY-P-VM

-E-BU

,EP-VM-E1-A

U, EP-VM

-E2-AU

13


TH8

TH6

TH23

t°

blue

CN

2M212

1C

N40

2gr

een

21

CN

403

red

12

CN

404

blac

k

yello

wC

N40

5TH

221

2

S(SH

IELD

)2

M2

1M

1

To M

A re

mot

eco

ntro

ller

To o

utdo

or u

nit/

B

C c

ontro

ller

Pow

er S

uppl

y~2

20/2

30/2

40V

50H

z/60

Hz

NL

Uni

t add

ress

set

ting(

SW

U1,

SW

U2)

Con

nect

ion

No.

(SW

U3)

LED

1

TB15

TB5

ZNR

1

UD

SA

1

CN

11 3

SWU2SW

U1SW

P3

SWP2

SWP1

OFF

ON1

10

SW4

OFF

ON1

10

SW3

OFF

ON1

10

SW1

OFF

ON1

10

SW2

LED

4：R

emot

e co

ntro

ller

　

whe

n po

wer

ed5

1234

X502

CN50

7

31

M56

ON OFF 1SW

5

SWU3

LED

3：Li

t whe

n po

wer

ed

Con

trol B

oard

CN

LVB

LEV1

Wa

TB2

SV

1

DS

A B

oard

CN

3Tre

d13

T01

ZNR0

1

31

CN50

2bla

ck

12

CNAC

red

U

F01

AC25

0V6.

3A T

LED1

Disp

lay

setti

ng(S

W2)

Func

tion

setti

ng(S

W1,

SW3,

SW4,

SW5)

OUT4

OUT3

OUT2

X514

X513

X512

TB14

1A

X511

333

33

22

22

111

11

CN

3A

CN

421

CN

421

4-20

mA

4-20

mA

CN

422

CN

422

blue

blac

kbl

ack

blue

blue

TB14

2C

CO

M+

IN6

IN8

CO

M+

IN5

IN7

TB14

2B

X516

X517

X515 OU

T6OUT7

OUT5

TB14

1B

red

red

gray

blue

yello

w/g

reen

TB14

2A IN2

IN3

IN1

IN4

*4

*5*6

*7

oran

geye

llow

blac

kpu

rple

TB2

LEV

1Wa

SV

1

TB5

TB15O

UT1

IN1

IN3

CO

M+

IN4

IN5

IN6

IN7

IN8

OU

T2

TH22

TH23

TH6OU

T4

TH8

Exp

lana

tion

Func

tion

Func

tion

Func

tion

Func

tion

Term

inal

bloc

k

Line

arex

pans

ion

valv

e

Sol

enoi

d va

lve

Pow

er s

uppl

y

BC

con

trolle

r/out

door

uni

t

For o

peni

ng/c

losi

ng th

e by

pass

circ

uit

Out

door

uni

t/BC

con

trolle

rM

A re

mot

e co

ntro

ller

Ope

ratio

n O

N/O

FF（

Volta

ge c

onta

ct)

Flow

sw

itch

Con

nect

ion

dem

and

Com

mon

Ope

ratio

n O

N/O

FF

Hea

ting

Hea

ting

EC

OA

nti-f

reez

eC

oolin

g

Def

rost

liqui

d pi

pe te

mp

gas

pipe

tem

pw

ater

inle

t tem

p

Err

or s

igna

l

wat

er o

utle

t tem

p

Sym

bol

Sym

bol

Sym

bol

Sym

bol

Sym

bol Th

erm

isto

r

<Sym

bol e

xpla

natio

n>

<CAU

TIO

N FO

R IN

STAL

LATI

ON>

·Prio

r to

inst

alla

tion,

read

the

Inst

alla

tion

Man

ual c

aref

ully.

*1.S

ingl

e-do

tted

lines

indi

cate

wiri

ng n

ot s

uppl

ied

with

the

unit.

*2.D

ot-d

ash

lines

indi

cate

the

cont

rol b

ox b

ound

arie

s.*3

.TB1

41A(

outp

ut)

*4.T

B142

A(in

put)

*5.T

B142

B(in

put)

*6.T

B142

C(in

put)

CNSV

21

21

3

SV

GFo

r ope

ning

/clo

sing

the

gas

refri

gera

nt c

ircui

t S

VL

For o

peni

ng/c

losi

ng th

e liq

uid

refri

gera

nt c

ircui

t

t°t°t°

OUT1

blue

blac

k

red

whi

te

red

red

SVG

SV

L

CNSV

1

OU

T3 is

no

func

tion.

F02

AC

250V

3.15

A T

F03

AC

250V

3.15

A T

PWFY-EP100VM-E2-AU

MEES20K026

PWFY

-P-V

M-E

-BU

,EP-

VM-E

1-A

U, E

P-VM

-E2-

AU

14


TB

01M1

M2

WC

B B

oard

Not

e:1.

TB

02 is

tran

smis

sion

term

inal

blo

ck.

Nev

er c

onne

ct p

ower

line

to it

.

2. T

he in

itial

set

val

ues

of s

witc

h on

WC

B B

oard

are

as

follo

ws.

S

W1:

0

SW

2:0

Exp

ansi

on v

alve

The

rmis

tor

sens

orTr

ansf

orm

er

(Sym

bol e

xpla

natio

n)N

ame

Sym

bol

TB

01Te

rmin

al b

lock

(for

pow

er s

ourc

e)Te

rmin

al b

lock

(for

Tra

nsm

issi

on)

TB

02

Sol

enoi

d va

lve

SV

M1

21S

4a4-

way

val

ve

TO N

EX

TIN

DO

OR

UN

IT

PU

LL B

OX

FU

SE

(16A

)B

RE

AK

ER

(16A

)

50H

z/60

Hz

PO

WE

R S

UP

PLY

~22

0V-2

40V

S(S

HIE

LD)TB

02 In

door

/out

door

Tran

smis

sion

line

1 2 3 654C

N05

CN

07

1 2 3 654

TH

16

TH

151 2 3 4

CN

11

TH

12

TH

11

1 12C

N13

2 3

CN

104 5 6 7 8

F01

AC

250V

6.3A

F

ZN

R01

ZN

R02

CN

121

35

1 3

20V

~22

VTR

220V

~24

0V

11

32

2 CN

02C

N03

F01

Fuse

AC

250V

6.3

A F

TH

13

TH

14

TR

TH

11~

16LE

V1,

3Ye

llow

Red

Red

Yello

w

SW

1S

W2

ON

OF

F

ON

OF

F

ON

OF

F

81

81

81

SW

4

SW

5

SW

6

1 3X

02

CN

26

5 7

X01

SV

M1

21S

4a

1 2 3 44321

11

32 4

32 4

T1

CN

TR

Red

NL

DS

A

UU

LEV

3

LEV

1MM

LD

1:C

PU

in

ope

ratio

n

1's

digi

t

Uni

t add

ress

setti

ng

10's

digi

t

Fun

ctio

nse

tting

31 75

CMB-PW202V-J


MEES20K026

PWFY-P-VM

-E-BU

,EP-VM-E1-A

U, EP-VM

-E2-AU

15

6. SOUND LEVELS AIR TO WATER

6. SOUND LEVELS

Measurement conditionPWFY-P100VM-E-BU

Measurement conditionPWFY-EP100VM-E1-AU, PWFY-EP100VM-E2-AU

When Low noise mode is set,the A/C system's capacity is limited. The system could return to normal operation from Low noise mode automatically in the case that the operation condition is severe.

10

20

30

40

50

60

70

80

90

63 125 250 500 1k 2k 4k 8k

NC-40

NC-30

NC-20

NC-60

NC-50

NC-70

Oct

ave

band

sou

nd le

vel (

dB)

Approximate minimumaudible limit oncontinuous noise

Sound level of PWFY-P100VM-E-BU

50/60HzdB(A)44.0

8k27.0

4k27.5

2k32.0

1k39.0

500k42.0

25037.0

12553.5

6341.0

Measurementlocation

1m

1m

Octave band center frequency <Hz>

50/60HzWhen Low noise mode is set,the A/C system's capacity is limited. The system could return to normal operation from Low noise mode automatically in the case that the operation condition is severe.

10

20

30

40

50

60

70

80

90

63 125 250 500 1k 2k 4k 8k

NC-40

NC-30

NC-20

NC-60

NC-50

NC-70

Octave band central frequency (Hz)

Oct

ave

band

sou

nd le

vel (

dB)

Sound level of PWFY-EP100VM-E1/E2-AU

Approximate minimumaudible limit oncontinuous noise

dB(A)29.0

8k12.0

4k15.0

2k14.5

1k22.5

500k25.0

25033.0

12532.0

6342.0

Measurementlocation

1m

1m

MEES20K026

PWFY

-P-V

M-E

-BU

,EP-

VM-E

1-A

U, E

P-VM

-E2-

AU

16

7. VIBRATION LEVELS AIR TO WATER

7. VIBRATION LEVELS

PWFY-P100VM-E-BU

PWFY-P100VM-E-BUModel Vibration Levels[dBA]

34

10cm 20cm

Measurementlocation

Servicepanel

Concrete


MEES20K026

PWFY-P-VM

-E-BU

,EP-VM-E1-A

U, EP-VM

-E2-AU

17

8. OPERATION TEMPERATURE RANGE AIR TO WATER

8. OPERATION TEMPERATURE RANGE

PWFY-P100VM-E-BUR2-Series, R2-Series (High efficiency)

WR2-Series

01020304050607080

Boos

ter u

nit i

nlet

wat

er te

mp.

[°C]

-5-10-15-20 0 5 10 15 20 25 30 35 40 45 50

Heating

Outdoor temp. [°CWB]

01020304050607080

Heat source unit circulating water temp. [°C]

Boos

ter u

nit i

nlet

wat

er te

mp.

[°C]

-5-10-15-20 0 5 10 15 20 25 30 35 40 45 50

Heating


MEES20K026

PWFY

-P-V

M-E

-BU

,EP-

VM-E

1-A

U, E

P-VM

-E2-

AU

18


PWFY-EP100VM-E1-AU, PWFY-EP100VM-E2-AUY-Series, Y-Series (High efficiency)

WY-Series, WR2-Series

R2-Series, R2-Series (High efficiency)

Heating

0

10

20

30

40

50


HEX

unit

inlet

wat

er te

mp.

[°C]

-5-10-15-20 0 5 10 15 20 25 30 35 40 45 50

Heating

0

10

20

30

40

50


HEX

unit

inlet

wat

er te

mp.

[°C]

-5-10-15-20 0 5 10 15 20 25 30 35 40 45 50

Heating

0

10

20

30

40

50


HEX

unit

inlet

wat

er te

mp.

[°C]

-5-10-15-20 0 5 10 15 20 25 30 35 40 45 50


MEES20K026

PWFY-P-VM

-E-BU

,EP-VM-E1-A

U, EP-VM

-E2-AU

19


Y-Series, Y-Series (High efficiency), R2-Series, R2-Series (High efficiency)

WY-Series, WR2-Series

ZUBADAN-Series

ZUBADAN-Series

Cooling

0

10

20

30

40

50

Outdoor temp. [°CDB]

HEX

unit

inlet

wat

er te

mp.

[°C]

-5-10-15-20 0 5 10 15 20 25 30 35 40 45 50

0

10

20

30

40

50


HEX

unit

inlet

wat

er te

mp.

[°C]

-5-10-15-20 0 5 10 15 20 25 30 35 40 45 50

Cooling

Heating

0

10

20

30

40

50


HEX

unit

inlet

wat

er te

mp.

[°C]

-5-10-15-20 0 5 10 15 20 25 30 35 40 45 50-25

Cooling

HEX

unit

inlet

wat

er te

mp.

[°C]

0

10

20

30

40

50


-5-10-15-20 0 5 10 15 20 25 30 35 40 45 50-25


MEES20K026

PWFY

-P-V

M-E

-BU

,EP-

VM-E

1-A

U, E

P-VM

-E2-

AU

20

9. CAPACITY TABLES AIR TO WATER

9. CAPACITY TABLES9-1. Correction by temperatureEstimated performance without defrostR2-Series/R2-Series (High efficiency) + PWFY-P100VM-E-BU

0.5

0.6

0.7

0.8

0.9

1.0

1.1

10 15 20 25 30 35 40 45 50 55 60 65 70

Rat

io o

f boo

ster

uni

t hea

ting

capa

city

Booster unit inlet-water temp. [°C]


Rat

io o

f out

door

uni

t hea

ting

capa

city

-20 -15 -10 -5 0 5 10 15 20 25 30

1.1

1.0

0.9

0.8

0.7

0.6

0.5


MEES20K026

PWFY-P-VM

-E-BU

,EP-VM-E1-A

U, EP-VM

-E2-AU

21


R2-Series

R2-Series (High efficiency)

* The nominal input values for outdoor units above are referential values for a system in which the PWFY units are connected to the outdoorunits to its 100% capacity. The actual calculation results of the corrected input of the outdoor unit depend on the ratio of PWFY and othertypes of indoor units connected. Use the nominal input values above for the PWFY units when calculating the corrected input.

65°C

60°C

50°C

40°C

30°C

20°C10°C

1.1

1.0

0.9

0.8

0.7

0.6

0.5

0.4

0.3

0.2


Rat

io o

f boo

ster

uni

t inp

ut


-20 -15 -10 -5 0 5 10 15 20 25 30

40°C50°C

60°C

65°C

30°C

20°C

10°C

1.1

1.0

0.9

0.8

0.7

0.6


Rat

io o

f out

door

uni

t inp

ut


-20 -15 -10 -5 0 5 10 15 20 25 30

HP 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44Nominal Input (kW) 5.49 7.32 9.37 11.59 11.42 14.93 16.06 20.29 19.12 20.68 22.68 23.01 22.84 26.23 30.13 34.04 36.38 38.82 42.42



MEES20K026

PWFY

-P-V

M-E

-BU

,EP-

VM-E

1-A

U, E

P-VM

-E2-

AU

22


R2-Series/R2-Series (High efficiency) + PWFY-P100VM-E-BU + WCB Energy saving mode**For energy saving mode, set WCB DIP SW 6-5 ON.

0.5

0.6

0.7

0.8

0.9

1.0

1.1

10 15 20 25 30 35 40 45 50 55 60 65 70

Rat

io o

f boo

ster

uni

t hea

ting

capa

city


1.0

0.9

0.8

0.7

0.6

0.5Rat

io o

f out

door

uni

t hea

ting

capa

city

Outdoor temp. [°CWB] -20 -15 -10 -5 0 5 10 15 20 25 30


MEES20K026

PWFY-P-VM

-E-BU

,EP-VM-E1-A

U, EP-VM

-E2-AU

23


R2-Series

R2-Series (High efficiency)


65°C60°C

50°C

40°C

30°C

20°C10°C

1.0

0.9

0.8

0.7

0.6

0.5

0.4

0.3

0.2

Rat

io o

f boo

ster

uni

t inp

ut



-20 -15 -10 -5 0 5 10 15 20 25 30

40°C

50°C

60°C65°C

30°C20°C

10°C

1.0

0.9

0.8

0.7

0.6

0.5

0.4

Rat

io o

f out

door

uni

t inp

ut



-20 -15 -10 -5 0 5 10 15 20 25 30

HP 8 10 12 14Nominal Input (kW) 5.49 7.32 9.37 11.59

HP 8 10 12 14Nominal Input (kW) 6.41 8.45 9.97 12.93


MEES20K026

PWFY

-P-V

M-E

-BU

,EP-

VM-E

1-A

U, E

P-VM

-E2-

AU

24


Y-Series + PWFY-EP100VM-E1-AU, PWFY-EP100VM-E2-AU

Heating


0.8

0.9

1.0

1.1

10 15 20 25 30 35 40

Rat

io o

f HEX

uni

t hea

ting

capa

city

HEX unit inlet-water temp. [°C]


Rat

io o

f out

door

uni

t hea

ting

capa

city


Rat

io o

f out

door

uni

t inp

ut

1.3

1.2

1.1

1.0

0.9

0.8

0.7

0.6

0.5

0.4

0.3 -20 -15 -10 -5 0 5 10 15

-20 -15 -10 -5 0 5 10 15

1.6

1.5

1.4

1.3

1.2

1.1

1.0

0.9

0.8

0.7

0.6


* The dashed lines show the reference values obtained from using the simulation.

10°C

20°C

30°C35°C40°C

HP 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60Nominal Input (kW) 5.81 7.34 9.07 11.13 12.50 15.55 18.52 17.29 19.36 21.00 22.97 24.93 27.62 29.90 33.00 30.40 32.70 34.25 36.60 39.29 40.76 44.08 46.04 49.12 52.69 55.87 59.73


MEES20K026

PWFY-P-VM

-E-BU

,EP-VM-E1-A

U, EP-VM

-E2-AU

25


Cooling


Rat

io o

f HEX

uni

t coo

ling

capa

city


0.5

0.6

0.7

0.8

0.9

1.0

1.1

1.2

10 15 20 25 30 35

Rat

io o

f out

door

uni

t inp

ut



Rat

io o

f out

door

uni

t coo

ling

capa

city


1.4

1.3

1.2

1.1

1.0

0.9

0.8

0.7

0.6

0.5

0.4 -5 0 5 10 15 20 25 30 35 40 45

-5 0 5 10 15 20 25 30 35 40 45

35°C30°C25°C23°C20°C15°C10°C

1.7

1.6

1.5

1.4

1.3

1.2

1.1

1.0

0.9

0.8

0.7

HP 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60Nominal Input (kW) 5.19 6.88 8.56 11.69 13.55 14.79 18.39 16.66 19.43 20.97 24.69 26.56 27.86 30.18 31.46 30.25 32.10 35.01 38.62 40.24 44.10 43.80 47.80 47.40 49.86 52.33 54.81


MEES20K026

PWFY

-P-V

M-E

-BU

,EP-

VM-E

1-A

U, E

P-VM

-E2-

AU

26


Y-Series (High efficiency) + PWFY-EP100VM-E1-AU, PWFY-EP100VM-E2-AU

Heating


0.8

0.9

1.0

1.1

10 15 20 25 30 35 40

Rat

io o

f HEX

uni

t hea

ting

capa

city



Rat

io o

f out

door

uni

t hea

ting

capa

city


Rat

io o

f out

door

uni

t inp

ut

1.3

1.2

1.1

1.0

0.9

0.8

0.7

0.6

0.5

0.4

0.3 -20 -15 -10 -5 0 5 10 15

-20 -15 -10 -5 0 5 10 15

10°C

20°C

30°C35°C

40°C

1.4

1.3

1.2

1.1

1.0

0.9

0.8

0.7

0.6



HP 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54Nominal Input (kW) 5.73 7.68 9.16 12.53 13.15 16.09 19.68 17.73 19.66 20.07 21.67 23.92 25.18 27.76 29.04 32.03 33.50 36.87 41.17 44.47 45.45 49.36 50.62 54.36


MEES20K026

PWFY-P-VM

-E-BU

,EP-VM-E1-A

U, EP-VM

-E2-AU

27


Cooling


Rat

io o

f HEX

uni

t coo

ling

capa

city


0.5

0.6

0.7

0.8

0.9

1.0

1.1

1.2

10 15 20 25 30 35

Rat

io o

f out

door

uni

t inp

ut

1.5

1.4

1.3

1.2

1.1

1.0

0.9

0.8

0.7



Rat

io o

f out

door

uni

t coo

ling

capa

city


1.4

1.3

1.2

1.1

1.0

0.9

0.8

0.7

0.6

0.5

0.4 -5 0 5 10 15 20 25 30 35 40 45

-5 0 5 10 15 20 25 30 35 40 45

35°C30°C25°C

20°C23°C

15°C10°C

HP 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54Nominal Input (kW) 5.19 6.89 8.56 11.69 12.26 14.79 18.72 16.62 18.59 18.15 20.15 21.85 23.43 25.53 27.22 30.33 31.04 34.40 38.15 41.53 42.76 45.90 46.94 50.00


MEES20K026

PWFY

-P-V

M-E

-BU

,EP-

VM-E

1-A

U, E

P-VM

-E2-

AU

28


R2-Series + PWFY-EP100VM-E1-AU, PWFY-EP100VM-E2-AU

Heating


0.8

0.9

1.0

1.1

10 15 20 25 30 35 40

Rat

io o

f HEX

uni

t hea

ting

capa

city



Rat

io o

f out

door

uni

t hea

ting

capa

city


Rat

io o

f out

door

uni

t inp

ut

1.3

1.2

1.1

1.0

0.9

0.8

0.7

0.6

0.5

0.4

0.3

1.6

1.5

1.4

1.3

1.2

1.1

1.0

0.9

0.8

0.7

0.6


10°C

20°C

30°C35°C40°C

-20 -15 -10 -5 0 5 10 15 20 25 30

-20 -15 -10 -5 0 5 10 15 20 25 30




MEES20K026

PWFY-P-VM

-E-BU

,EP-VM-E1-A

U, EP-VM

-E2-AU

29


Cooling


Rat

io o

f HEX

uni

t coo

ling

capa

city


0.5

0.6

0.7

0.8

0.9

1.0

1.1

1.2

10 15 20 25 30 35

Rat

io o

f out

door

uni

t inp

ut

1.7

1.6

1.5

1.4

1.3

1.2

1.1

1.0

0.9

0.8

0.7



Rat

io o

f out

door

uni

t coo

ling

capa

city


1.4

1.3

1.2

1.1

1.0

0.9

0.8

0.7

0.6

0.5

0.4 -5 0 5 10 15 20 25 30 35 40 45

-5 0 5 10 15 20 25 30 35 40 45

35°C30°C25°C23°C20°C15°C10°C



MEES20K026

PWFY

-P-V

M-E

-BU

,EP-

VM-E

1-A

U, E

P-VM

-E2-

AU

30


R2-Series (High efficiency) + PWFY-EP100VM-E1-AU, PWFY-EP100VM-E2-AU

Heating


0.8

0.9

1.0

1.1

10 15 20 25 30 35 40

Rat

io o

f HEX

uni

t hea

ting

capa

city



Rat

io o

f out

door

uni

t hea

ting

capa

city


Rat

io o

f out

door

uni

t inp

ut

1.3

1.2

1.1

1.0

0.9

0.8

0.7

0.6

0.5

0.4

0.3

1.4

1.3

1.2

1.1

1.0

0.9

0.8

0.7

0.6


-20 -15 -10 -5 0 5 10 15 20 25 30

-20 -15 -10 -5 0 5 10 15 20 25 30

10°C

20°C

30°C

35°C

40°C




MEES20K026

PWFY-P-VM

-E-BU

,EP-VM-E1-A

U, EP-VM

-E2-AU

31


Cooling


Rat

io o

f HEX

uni

t coo

ling

capa

city


0.5

0.6

0.7

0.8

0.9

1.0

1.1

1.2

10 15 20 25 30 35

Rat

io o

f out

door

uni

t inp

ut

1.5

1.4

1.3

1.2

1.1

1.0

0.9

0.8

0.7



Rat

io o

f out

door

uni

t coo

ling

capa

city


1.4

1.3

1.2

1.1

1.0

0.9

0.8

0.7

0.6

0.5

0.4 -5 0 5 10 15 20 25 30 35 40 45

-5 0 5 10 15 20 25 30 35 40 45

35°C30°C25°C23°C20°C15°C10°C



MEES20K026

PWFY

-P-V

M-E

-BU

,EP-

VM-E

1-A

U, E

P-VM

-E2-

AU

32


9-2. Correction by total indoor

Total capacity of PWFY-(E)P100VM-E(1, 2)-BU/AU

Note Out of warranty at 50% or less due to unit's turn on-off.

0

10

20

30

40

50

60

70

80

90

100

0 10 20 30 40 50 60 70 80 90 100

Rat

io o

f Cap

acity

[%]

Total capacity of indoor units [%]

0

10

20

30

40

50

60

70

80

90

100

0 10 20 30 40 50 60 70 80 90 100

Rat

io o

f Inp

ut [%

]

Total capacity of indoor units [%]


MEES20K026

PWFY-P-VM

-E-BU

,EP-VM-E1-A

U, EP-VM

-E2-AU

33


9-3. Correction by water volume

PWFY-P100VM-E-BU

PWFY-EP100VM-E1-AU, PWFY-EP100VM-E2-AU

0.800.850.900.951.001.051.101.151.20

Booster unit water-volume [m3/h] Booster unit water-volume [m3/h]

Booster unit water-volume [m3/h]

Ratio

of b

oost

er u

nit h

eatin

g ca

pacit

y

0.800.850.900.951.001.051.101.151.20

Rat

io o

f boo

ster

uni

t in

put

0.800.850.900.951.001.051.101.151.20

Rat

io o

f out

door

uni

t in

put

0.5 1 1.5 2

0.5 1 1.5 2

0.5 1 1.5 2

Heating Cooling

1.5 2.0 2.5 3.0 3.5 4.0 4.5

1.5 2.0 2.5 3.0 3.5 4.0 4.5

1.5 2.0 2.5 3.0 3.5 4.0 4.5

1.5 2.0 2.5 3.0 3.5 4.0 4.5

HEX unit water-volume [m3/h] HEX unit water-volume [m3/h]

HEX unit water-volume [m3/h] HEX unit water-volume [m3/h]

Ratio

of H

EX u

nit h

eatin

g ca

pacit

y

Ratio

of H

EX u

nit c

oolin

g ca

pacit

y

0.80

0.85

0.90

0.95

1.00

1.05

1.10

1.15

0.80

0.85

0.90

0.95

1.00

1.05

1.10

1.15

Rat

io o

f out

door

uni

t in

put

0.80

0.85

0.90

0.95

1.00

1.05

1.10

1.15

0.80

0.85

0.90

0.95

1.00

1.05

1.10

1.15

Rat

io o

f out

door

uni

t in

put


MEES20K026

PWFY

-P-V

M-E

-BU

,EP-

VM-E

1-A

U, E

P-VM

-E2-

AU

34


9-4. Water pressure drop

PWFY-P100VM-E-BU (with strainer)

PWFY-EP100VM-E1-AU, PWFY-EP100VM-E2-AU (with strainer)

9-5. Water pressure drop of Strainer only

accessory for PWFY-P100VM-E-BU and PWFY-EP100VM-E1,E2-AU

0

10

20

30

40

50

0.5 1 1.5 2

Booster unit inlet-water volume [m3/h]

Boos

ter u

nit w

ater

-pre

ssur

e dro

p [k

Pa]

PWFY-P100VM-E-BU (with strainer)

Water pressure drop of strainer

0

10203040

50607080

90100

PWFY-EP100VM-E1/E2-AU (with strainer)

1.5 2 2.5 3 3.5 4 4.5

Water pressure drop of strainer

HEX unit inlet-water volume [m3/h]

HEX

unit

wate

r-pre

ssur

e dro

p [k

Pa]

0

10

20

30

40

Booster/HEX unit inlet-water volume [m3/h]

Wat

er-p

ress

ure

drop

[kPa

]

0.5 1 1.5 2 2.5 3 3.5 4 4.5


MEES20K026

PWFY-P-VM

-E-BU

,EP-VM-E1-A

U, EP-VM

-E2-AU

35

10. ACCESSORIES AIR TO WATER

10. ACCESSORIESPWFY

(A) Install the strainer at the water pipe inlet.(B) This insulation is for exclusive use with the strainer. Wrap the strainer with the insulation after water pipes are installed.(C) Install them at the strainer inlet. Refer to P58 for details.(D) To perform test run before the pump interlock circuit is completed, short circuit the terminal block TB142A (IN1), and

then perform test run.(E) When installing the unit, be sure to install the supplied flow switch on the water outlet side of the unit and connect the

wire to IN1 of TB142A on the unit.(F) If allowing wires inside the unit to hang loosely so as to prevent water from collecting and running down into electrical

components, be careful not to let the wires hang so loosely as to come into contact with nearby piping (solenoid valves).If there is any risk of contact being made, use the included buffer material to protect other components.

CMB-PW202V-J

(A) Strainer (B) Heat insulation material

*1*2 *2 *2

*1. PWFY-P100VM-E-BU only*2. PWFY-EP100VM-E1/E2-AU only

(C) Expansion joint 2 (D) Wire (E) Flow switch (F) Buffer material

SIZE UnitODø19.05 - IDø15.88 2ODø22.2 - IDø19.05 1ODø15.88 - IDø9.52 1ODø15.88 - IDø12.7 1ODø25.4 - IDø19.05 1ODø25.4 - IDø22.2 1ODø19.05 - IDø22.2 1ODø25.4 - IDø28.6 1ODø22.2 - IDø28.6 1ODø25.4 - IDø15.88 1Drain hose set 1 setInstallation Manual 1


MEES20K026

PWFY

-P-V

M-E

-BU

,EP-

VM-E

1-A

U, E

P-VM

-E2-

AU

36

11. OPTIONAL PARTS AIR TO WATER

11. OPTIONAL PARTS11-1. Solenoid valve kit

Unit: mm

(Mounting pitch)

2-ø2

7 Kn

ocko

ut h

ole

<Hol

e fo

r wiri

ng>

2×2-

ø14

Hole

(Mou

ntin

g pi

tch)

Serv

ice p

anel

Top

view

Term

inal

box

Fron

t vie

wRi

ght s

ide

view

Left

side

view

Back

view

183

328

121

104

55181

462

110

110

41

100

100

72

86

207

150

320

200

171

50

153

58

60

*1 PWFY-EP100VM-E2-AU do not need PAC-SV01PW-E because they are built in with the same functions.

PAC-SV01PW-E (For PWFY-EP100VM-E1-AU *1)

MEES20K026

PWFY-P-VM

-E-BU

,EP-VM-E1-A

U, EP-VM

-E2-AU

37

11. OPTIONAL PARTS AIR TO WATER

11-2. Remote controllerPAR-W21MAA specifications

ON/OFF

Operation mode switching

Water temperature setting

Preset temperature range

Water temperature display

Permit / Prohibitlocal operation

Weekly scheduler

Error

Self check (Error history)

Test run

Circulating waterreplacement warning

LANGUAGE setting

Operation locking function

Runs and stops the operation of a group of unitsSwitches between Hot Water / Heating / Heating ECO / Anti-freeze / Cooling* Available operation modes vary depending on the unit to be connected.* Switching limit setting can be made via a remote controller.Temperature can be set within the ranges below. (in increments of 1°C or 1°F)Hot Water 30°C ~ 70°C Heating 30°C ~ 40°C*1 (Dip SW1-1 = OFF) , 30°C ~ 45°C (Dip SW1-1 = ON)Heating ECO 30°C ~ 40°C*1 (Dip SW1-1 = OFF) , 30°C ~ 45°C (Dip SW1-1 = ON)Anti-freeze 30°C ~ 40°C*1 (Dip SW1-1 = OFF) , 10°C ~ 45°C (Dip SW1-1 = ON) Cooling 10°C ~ 30°C

* The settable range varies depending on the unit to be connected.Preset temperature range setting can be limited via a remote controller.10°C ~ 90°C(in increments of 1°C or 1°F)* The settable range varies depending on the unit to be connected.Individually prohibits operations of each local remote control function :ON/OFF, Operation modes,water temperature setting, Circulating water replacement warning reset.* Upper level controller may not be connected depending on the unit to be connected.ON / OFF / Water temperature setting can be done up to 6 times one day in the week.(in increments of a minute)When an error is currently occurring on a unit, the afflicted unit and the error code are displayed.Searches the latest error history by pressing the CHECK button twice.Enables the Test run mode by pressing the TEST button twice.* Test run mode is not available depending on the unit to be connected.Displays the circulating water replacement warning via the unit message.Clears the display by pressing the CIR.WATER button twice.* Circulating water replacement warning is not available depending on the unit to be connected.The language on the dot matrix LCD can be changed. (Seven languages)English/German/Spanish/Russian/Italian/French/SwedishRemote controller operation can be locked or unlocked.·All-switch locking·Locking except ON/OFF switch

Item Description Operations Display

*1. The maximum temperature setting is 45°C in case of PWFY Ver.1.24 or earlier.


MEES20K026

PWFY

-P-V

M-E

-BU

,EP-

VM-E

1-A

U, E

P-VM

-E2-

AU

38

12. ELECTRICAL WORK AIR TO WATER

12. ELECTRICAL WORK12-1. General cautions

Electrical work should be done by qualified electrical engineers in accordance with "Engineering Standards For ElectricalInstallation" and supplied installation manuals. Special circuits should also be used. If the power circuit lacks capacity orhas an installation failure, it may cause a risk of electric shock or fire.

1) Be sure to take power from the special branch circuit.2) Be sure to install an earth leakage breaker to the power.3) Install the unit to prevent that any of the control circuit cables (remote controller, transmission cables, or external input/

output line) is brought in direct contact with the power cable outside the unit.4) Ensure that there is no slack on all wire connections.5) Some cables (power, remote controller, transmission cables external input/output line) above the ceiling may be bitten

by mouses. Use as many metal pipes as possible to insert the cables into them for protection.6) Never connect the power cable to leads for the transmission cables. Otherwise the cables would be broken.7) Be sure to connect control cables to the indoor unit, remote controller, and the outdoor unit.8) Be sure to ground the unit.9) Select control cables from the conditions given in P43.

Be sure to put the unit to the ground on the outdoor unit side. Do not connect the earth cable to any gas pipe, water pipe,lightening rod, or telephone earth cable. Incomplete grounding may cause a risk of electric shock.

12-2. Power supply for PWFY unit

Electrical characteristics of PWFY unitPower supply cords of appliances shall not be lighter than design 245 IEC 57 or 227 IEC 57.A switch with at least 3 mm contact separation in each pole shall be provided by the Air conditioner installation.

ModelPower supply Compressor RLA (A)

Hz Volts Voltage range MCA (A) Output (kW) SC (A) Heating

PWFY-P100VM-E-BU 50/60 220-230-240 V Max. 264 VMin. 198 V 15.71 1.0 1.25 11.63-11.12-10.66

ModelPower supply RLA (A)

Hz Volts Voltage range MCA (A) Cooling Heating

PWFY-EP100VM-E1-AU 50/60 220-230-240 V Max. 264 VMin. 198 V 0.085 0.068-0.065-0.063


Hz Volts Voltage range MCA (A) Cooling Heating

PWFY-EP100VM-E2-AU 50/60 220-230-240 V Max. 264 VMin. 198 V 0.175 0.138-0.139-0.140


Hz Volts Voltage range0.070-0.074-0.077

PAC-SV01PW-E 50/60 220-230-240 V Max. 264 VMin. 198 V


MEES20K026

PWFY-P-VM

-E-BU

,EP-VM-E1-A

U, EP-VM

-E2-AU

39


12-3. Power cable specifications

When a solenoid valve kit is connectedConnect the solenoid valve kit TB2 and PWFY TB2.Run the power supply wire through the access hole for power supply wire on the PWFY unit. If the hole is alreadyused to run other wires from the existing PWFY units, use any other wire access holes except the control wire accesshole.

Do not use anything other than the correct capacity breaker and fuse. Using fuse, wire or copper wire with too large ca-pacity may cause a risk of malfunction or fire.

ModelMinimum wire thickness (mm2) Breaker for

current leakageLocal switch (A) Breaker for wiring

(NFB) (A)Main cable branch Ground capacity fusePWFY-P100VM-E-BU 2.5 - 2.5 30 A 30 mA 0.1 sec or less 25 25 30

ModelMinimum wire thickness (mm2) Breaker for

current leakageLocal switch (A) Breaker for wiring

(NFB) (A)Main cable branch Ground capacity fuse

PWFY-EP100VM-E1-AUPWFY-EP100VM-E2-AU

Totaloperating current

16 A or less 1.5 1.5 1.5 20A 30mA 0.1 sec. or less 16 16 2025 A or less 2.5 2.5 2.5 30A 30mA 0.1 sec. or less 25 25 3032 A or less 4.0 4.0 4.0 40A 30mA 0.1 sec. or less 32 32 40

ModelMinimum wire thickness (mm2)

Main cable branch GroundPAC-SV01PW-E 1.5 1.5 1.5

(A) (B) (A) (B)

(C)

(E) (E)

PE

PEPE(D) PE(D) (D)(F)

PWFY-P100VM-E-BU (A) Breaker for current leakage(B) Local switch or breakers for wiring(C) PWFY-P100VM-E-BU(D) PWFY-EP100VM-E1/E2-AU(E) Pull box(F) PAC-SV01PW-E


TB2 TB2

L NL N

PWFY-P-VM-E-AUPAC-SV01PW-E


MEES20K026

PWFY

-P-V

M-E

-BU

,EP-

VM-E

1-A

U, E

P-VM

-E2-

AU

40


12-4. Connecting remote controller, indoor and outdoor transmission cables

Connect unit TB5 and outdoor unit TB3. (Non-polarized 2-wire (shield))The "S" on unit TB5 is a shielding wire connection. For specifications about the connecting cables, refer to the outdoor unit installation manual.Install a remote controller following the manual supplied with the remote controller.

Power supply examplesUsing MA Remote controller (Remote controller is optionally available)

Connect the "1" and "2" on unit TB15 to a MA remote controller. (Non-polarized 2-wire)

DC 10 to 13 V between 1 and 2 (MA remote controller)

The MA remote controller cannot be used at the same time or interchangeably.

Ensure that the wiring is not pinched when fitting the terminal box cover. Pinching the wiring may cut it.

Use wire with supplemental insulation.Input to TB142A, TB142B, and TB142C should not carry voltage.Cables from equipment connected to external input/output should have supplemental insulation.Use a single multiple-core cable for external input/output to allow for connection to the PG screw.

Wire the power supply so that no tension is imparted. Otherwise disconnection, heating or fire result.

TB02 TB15

earth cable (shielded)

TB5

SM1M2 SM1M2

TB3

M1M2

(A) (B) (C)

(D)

(E)

(E)

1 2 S

TB15TB5

SM1M2 1 2

(shielding wire)

(A) Outdoor unit(B) BC controller/WCB(C) PWFY-P100VM-E-BU(D) PWFY-EP100VM-E1/E2-AU(E) MA remote controller

MA remote controller

PWFY-P100VM-E-BU PWFY-EP100VM-E1/E2-AU

(A) Non-polarized (B) TB15 (MA remote controller cables)(C) MA remote Controller(D) TB5 (Transmission cables)(E) TB2 (Power supply wiring)

(B)

(A)

2

S

M2

M1

(A)

(B)

(D)

(E)

1

LN

DC10~13V

A B1 2

(C)

S

2

1

LN

DC10~13V

1 2A B

(C)

SM2

M1

(D)

(E)

MA remote controller


MEES20K026

PWFY-P-VM

-E-BU

,EP-VM-E1-A

U, EP-VM

-E2-AU

41


12-5. Connecting electrical connections

Verify that the model name on the operating instructions on the cover of the control box is the same as the model nameon the nameplate.

Remove the screws holding the terminal box cover in place.

Ensure that the wiring is not pinched when fitting the terminal box cover. Pinching the wiring may cut it.

Install wiring so that it is not tight and under tension. Wiring under tension may break, or overheat and burn.

Fix power source external input/output line wiring to control box by using buffer bushing for tensile force to prevent electric shock. (PG connection or the like.) Connect transmission wiring to transmission terminal block through the knockout hole of control box using ordinary bushing.After wiring is complete, make sure again that there is no slack on the connections, and attach the cover onto the control box in the reverse order removal.

(A) Screws(B) Front panel(C) Control box

▪PWFY unit ▪Solenoid valve kit

(A)(C)

(B)

(A)(C)

(A)

(B)

(A)


MEES20K026

PWFY

-P-V

M-E

-BU

,EP-

VM-E

1-A

U, E

P-VM

-E2-

AU

42


Wire the power supply so that no tension is imparted. Otherwise disconnection, heating or fire result.

(A) To prevent external tensile force from applying to the wiring connection section of power source terminal block use buffer bushing like PG connection or the like.(B) External signal input cable(C) External signal output cable(D) Power source wiring(E) Tensile force(F) Use ordinary bushing(G) Transmission cable and MA remote controller cable

(A) To prevent external tensile force from applying to the wiring connection section of power source terminal block use buffer bushing like PG connection or the like.(B) External signal input cable(C) Power source wiring(D) Tensile force(E) Back view

▪PWFY unit

▪Solenoid valve kit

(C)

(A)(A)

(A)

(B)

(D)

(E)

(G)

(F)

(C)

(E)

(B)

(D)(A)

(A)


MEES20K026

PWFY-P-VM

-E-BU

,EP-VM-E1-A

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13. CONTROL AIR TO WATER

13. CONTROL13-1. Transmission cable specifications

Transmission cablesPWFY-P100VM-E-BU


Transmission cables MA Remote controller cables External input External output

Type of cable Shielding wire (2-core)CVVS, CPEVS or MVVS

Sheathed 2-core cable (shielded)CVVS

Sheathed multi-core cable (shielded)

CVVS or MVVS

Sheathed multi-core cable(unshielded)CVV or MVV

Cable diameter More than 1.25 mm2 0.3 ~ 1.25 mm2 0.3 ~ 0.5 mm2 0.3 ~ 1.25 mm2

Remarks - Max.length: 200 m Max.length: 100 m Rated voltage: L1-N: 220 ~ 240 VRated load: 0.6 A

Transmission cables MA Remote controller cables External input External output

Type of cable Shielding wire (2-core)CVVS, CPEVS or MVVS

Sheathed 2-core cableCVV (unshielded)

Sheathed multi-core cableCVV or MVV (unshielded)

Sheathed multi-core cable(unshielded)CVV or MVV

Cable diameter More than 1.25 mm2 0.3 ~ 1.25 mm2 0.3 ~ 0.5 mm2 0.3 ~ 1.25 mm2

Remarks - Max.length: 200 m Max.length: 100 m Rated voltage: L1-N: 220 ~ 240 VRated load: 0.6 A

CVVS, MVVS: PVC insulated PVC sheathed shielded control cableCVV, MVV: PVC insulated PVC sheathed control cableCPEVS: PE insulated PVC sheathed shielded communication cable


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13-2. Indoor unit address setting

(Be sure to operate with the main power turned OFF.)<Address board>

13-2-1. Switch operation (BC controller)There are two types of rotary switch setting available: setting addresses 1 to 9 and over 10, and setting branch numbers.a) How to set addresses

Example: If Address is "3", SWU2 (for over 10) remains at "0", and match SWU1 (for 1 to 9) to "3".b) How to set branch numbers SWU3 (only for R2/WR2-Series)

Branch number matches the BC controller branch number. If two branches are used, SWU3 should be set to a smallerbranch number. For other than R2/WR2-Series, remain SWU3 as "0".

- example -

13-2-2. Switch operation (WCB)a) How to set addresses

Example: If Address is "3", SWU2 (for over 10) remains at "0", and match SWU1 (for 1 to 9) to "3".b) How to set branch numbers SWU3 (only for R2-Series)

There are two branches for WCB. Indoor unit/PWFY connecting branch should be set as "0" and PWFY connectingbranch as "1".

- example -

SWU2 SWU3SWU1

OC

IC2IC1

BC address

(01)

(02)

(03)

0 1 123

34

00

SWU2 SWU1 SWU3

1234

IC1

IC2

BC controller

IC2IC3

IC10 1 1

23

0004

000

SWU2 SWU1 SWU3

IC1

IC2

IC3

OC

WCBPWFY connectingbranch

Indoor/PWFYconnecting branch

WCB

address

(01)

(02)

(03)

(04)

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13-3. External input/output function

Preset temperature input (external analog input: 4mA-20mA)External inputInput through CN421, CN422 on the circuit board.

External analog inputUse the supplied connector.If no temperature settings are made via the MA remote controller, the temperature changes with the current of generator.

External output terminalExternal output terminal (refer to [Fig. 1-7-A]) is ineffective when the circuit is open.Refer to [Table 1] for information about each contact.The current and voltage in the circuit to be connected to external output terminal (TB141A OUT1) must meet the followingconditions.

When a solenoid valve kit is connectedConnect the "1" and "2" on solenoid valve kit TB1 to the OUT1 on PWFY external output terminal.Run the external signal input cable through the access hole for external wiring output wire on the PWFY unit.If the hole is already used to run other wires from the existing PWFY units, use any other wire access holes exceptthe control wire access hole.

CN

421

(BK

)(B

U)

CN

422

3

2

2

1

1

3

CN

421

(BK

)

(BU

)C

N42

2

32

+

21 13

currentdirection

Current generator

Externalanalog input

+

currentdirection

Method

Input T(A), T(B)4mA :T(A)20mA:T(B)

S/W default T(A)=10°C T(B)=70°C.

*All setting with a controller.

T(B)°C

T(A)°C

4mA 20mAla

Conversion equation:To=[{T(B) - T(A)}/16] × Ia + [ T(A) - {T(B) - T(A)}/4] To: set temperature, Ia: analogue input value (mA)

Calculation example: T(A)=30°C, T(B)=70°C, Ia=10mAConversion equation: To=2.5 × Ia+20 To=45°C

Changeable with PAR-W21MAA

Contact rating currentContact rating voltage

AC250V 1A or lessAC125V 3A or lessDC30V 3A or less

OUT1OUT2

OUT3 *7

OUT4

Operation ON/OFFDefrost

Compressor Error signal

[Fig. 1-7-A]

OUT4OUT3OUT2

TB141A

OUT1

[Table 1]

TB141A

OUT1 OUT2 OUT3 OUT4

TB1

1 2 3

(A) PWFY-EP-VM-E-AU(B) PAC-SV01PW-E


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External input terminalThe piping length must be within 100 m.External input terminal (refer to [Fig. 1-7-B]) is ineffective when the circuit is open.Refer to [Table 2] through [Table 4] for information about each contact.Only the "pump interlock" function is ineffective when the circuit is short-circuited.Connect a relay circuit to the external output terminal as shown in [Fig. 3-1-F].The specifications of the relay circuit to be connected must meet the following conditions.Contact rating voltage >= DC15VContact rating current >= 0.1AMinimum applicable load =< 1mA at DC

*1 PWFY-P100VM-E-BU … Hot WaterPWFY-EP100VM-E1/E2-AU … Heating

*2 Effective when SW 4-3 is set to ON.*3 Effective when SW 4-4 is set to ON.*4 PWFY-EP100VM-E1/E2-AU only*5 When Heating ECO mode is effective, the outlet water

temp. will be changed based on ambient temp. automatically. (Only Y/HP (ZUBADAN)/R2-Series)

*6 When Anti-freeze mode is effective, the unit will set theheating temperature range between 10ºC~45ºC enablingthe unit to maintain low water temperature to prevent waterpipes from freezing.

*7 PWFY-P100VM-E-BU only

When setting Heating ECO or Anti-freeze mode, reset all power supply of all units (outdoor/indoor units).Dip S/W 1-1 OFF: Water Inlet Temp.Dip S/W 1-1 ON: Water Outlet Temp.The factory setting for Dip SW 1-1 is OFF. Signal priority = External input > centralized controller > remote controller

[Table 2] TB142A [Table 4] TB142CIN1 Pump interlock COM+ Common

IN5 *1 Hot Water/Heating[Table 3] TB142B IN6 *2 Heating ECO *5

IN3 Connection demand IN7 *3 Anti-freeze *6IN4 Operation ON/OFF IN8 *4 Cooling operation

IN1

[Fig.1-7-B]

IN2 IN3 IN4 IN5IN6 IN7 IN8

TB142CTB142BTB142A

COM+

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14. PIPING DESIGN AIR TO WATER

14. PIPING DESIGN14-1. Solenoid valve kit piping design

*Do not install the Solenoid valve kit on the square-arch-shaped piping as shown in the figure above.

Piping length limitationItem Piping in the figure Max. length (m)

Farthest AU from first joint A+B 40Length between AU and SV kit B 5

Height between AU and IC (AU) h 15

AU AU

SV kitSV kit

SV kitAU

A

B

h

AU

SV kit

IC


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14-2. WCB piping design

WCB

A

C

D E

d e f g

Header branch

a b c

BH H1

h1

h2

Capped

Line branch

0

10

20

30

40

50

60

70

0 5 10 15Height difference between WCB

and farthest indoor unit (m)

Pip

e le

ngth

bet

wee

n W

CB

and

farth

est i

ndoo

r uni

t (m

)

*1. Refer to Fig. (A) "Restrictions on piping length".*2. Please refer to Fig. (B) "Distance between WCB and farthest Indoor unit" when the distance between WCB controller and farthest indoor unit exceeds 40 m.

(Not applicable to the P250 model indoor unit).*3. The values in the parenthesis show the maximum piping length when the capacity of the connected indoor unit is 200 or more.NOTE:Joint branching is not possible after header branching.Cover the unused branch using the optional cover cap (CMY-S202-J).Top-bottom differential 90m(OU above IU) or 60m(OU below IU) is not available.

PQRY-P200,250,300YLM

OU/HU

IU IU IU AU

BU AU AU

L1

L2

(Header branchpossible)

(Line branch possible)

Indoor/ PWFY branch

PWFY branch

Piping in the figure Maximum lengthA+B+C+D+E+a+b+c+d+e+f+g *1

A+C+D+E+g/A+B+c 165 m(Max. equivalent length of 190 m or less)

011AC+D+E+g/B+c 40*2

05HOU/HU above IU041HOU/HU below IU

h1 15 (10)*3

h2 15 (10)*3

ItemTotal piping length

Farthest IU from OU/HU

Distance between OU/HU and WCBDistance between IU and WCB

Height between IU and OU/HU

Height between IU and WCBHeight between indoor units

Fig. (A) Restrictions on piping length

Fig. (B) Distance between WCB and fartherest indoor unit

For PURY-Series

Piping "B", "C", "D", "E" size selection rule (mm)

(mm)

Total capacity of indoor units Liquid pipe Gas pipe–140 ø9.52 ø15.88

14–200 ø9.52 ø19.05201–300 ø9.52 ø22.2301–400 ø12.7 ø28.58

401– ø15.88 ø28.58Piping "a", "b", "c", "d", "e", "f", "g" size selection rule

Model number Liquid pipe Gas pipe15, 20, 25, 32, 40, 50 ø6.35 ø12.7

63, 71, 80, 100, 125, 140 ø9.52 ø15.88200 ø9.52 ø19.05250 ø9.52 ø22.2

Selection rule for branch pipe (joint)Downstream unit model total Joint

–200201–400

401–

CMY-Y102SS-G2CMY-Y102LS-G2CMY-Y202S-G2

Selection rule for branch pipe (header)

4-Branching header(Downstream unitmodel total 200)



CMY-Y104-G CMY-Y108-G CMY-Y1010-G




CMY-Y104-G CMY-Y108-G CMY-Y1010-G

200

300

400

500

600

700

800

900

1000

10 20 30 40 50 60 70 80 90 100 110Piping length between heat source unit and WCB(m)

PURY-(E)P200,250YLMPURY-(E)P200-300YNW

PURY-(E)P300, 350YLM

For PQRY-Series

Distance between outdoor unit and WCB(m)

Distance between outdoor unit and WCB(m)

200

300

400

500

600

700

800

900

1000

10 20 30 40 50 60 70 80 90 100 110

Tota

l ext

ende

d pi

pe le

ngth

(m)

200

300

400

500

600

700

800

900

1000

10 20 30 40 50 60 70 80 90 100 110

Tota

l ext

ende

d pi

pe le

ngth

(m)

Tota

l ext

ende

d pi

pe le

ngth

(m)


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14-3. Refrigerant charging calculation (PWFY-AU with R2 system)

It is needed to add extra refrigerant if the system is under the following conditions.See the attachment for how to decide the amount of refrigerant to be added to each outdoor unit.The graph below shows an example.

BC

to P

WFY

pip

e le

ngth

[m]

600550500450400350300

100

250200150

500

45 85 95 10565 7555

System total refrigerant amount [kg]

Extra charge amount (kg): BC to PWFY pipe length (m) × 0.1

Need to add refrigerant

Main pipe: 40m(BC) + 20m(BS)PWFY: P200 x 4, Pipe 25m eachIC: P50 x 11, Pipe 20m each (150%)

Main pipe: 40mPWFY: P200 x 2, Pipe 25m eachIC: P50 x 10, Pipe 20m each (100%)

O/U: P900Total capacity: 150%

Main pipe: 40mPWFY: P200 x 4, Pipe 25m each

Main pipe: 40mPWFY: P200 x 4, Pipe 12.5m each

A CDB

A B

C D

PURY-P200 PURY-EP200 PURY-P250 PURY-EP250

016 16

50

100

150

200

250

System refrigerant [kg]

Tota

l PW

FY P

ipe

leng

th [m

]

OK ZoneOK Zone

0

50

100

150

200

250

300


Tota

l PW

FY P

ipe

leng

th [m

]

18 1820 2422 26 28 30 20 2422 26 28 30 34 36 38 4032

20 22 24 2826 30 32 34 38 40 42 4436

AdditionalRefrigerant




Tota

l PW

FY P

ipe

leng

th [m

]


Tota

l PW

FY P

ipe

leng

th [m

]

16

OK Zone

0

50

100

150

200

250

300

18 20 2422 26 28 30 34 36 38 4032


050

100150200250300350400

OK Zone



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PURY-P550 PURY-EP550

050

100150200250300350400450500


Tota

l PW

FY P

ipe

leng

th [m

]

40 5045 55 60 65 70 75

OK Zone

Additional

PURY-P500 PURY-EP500


Tota

l PW

FY P

ipe

leng

th [m

]

050

100150200250300350400450500

35 4540 50 55 60 65 70

4540 50 55 60 65 70 75 80

4540 50 55 60 65 70 75 80

45

45

40 50 55

55

60 65

65

70 75

75 85

80

OK Zone


PURY-P700 PURY-EP700 PURY-P750,800 850 900, PURY-EP700

050

100150200250300350400450500


Tota

l PW

FY P

ipe

leng

th [m

]

0

100

200

300

400

500

600


Tota

l PW

FY P

ipe

leng

th [m

]

0

100

200

300

400

500

600

700


Tota

l PW

FY P

ipe

leng

th [m

]

0

100

200

300

400

500

600

700


Tota

l PW

FY P

ipe

leng

th [m

]

OK Zone

OK ZoneOK Zone

OK Zone





AdditionalRefrigerantAdditional

Refrigerant

*Total PWFY pipe length Shows the total length of gas pipes from PWFY units that are connected to the system


050

100150200250300350400


Tota

l PW

FY P

ipe

leng

th [m

]

050

100150200250300350400450500


Tota

l PW

FY P

ipe

leng

th [m

]

24 2526 28 30 3530 40 45 50 55 6034 36 38 40 42 46 48 504432

OK Zone OK Zone




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15. INSTALLATION AIR TO WATER

15. INSTALLATION15-1. How to calculate the necessary heating capacityHeating capacity calculation

Calculation example

* The value shown here is the rated capacity, and varies depending on the installation conditions.

++

A. For Air conditioning using such as Panel Heaters, Floor Heating and Fan coil unitsRequired total heating capacity kWSafety factor; %

B. For Sanitary use such as Shower and BathroomsConditions

Tank inlet water Temp.; °CTank outlet water Temp.; °C(Set Temp -5 °C)Safety factor for Heat Loss; %Operating time; HoursFor Shower; /person x Person = (Water Temp. Condition °C)

°C)For Bathrooms; /Person x Person = (Water Temp. ConditionThe conversion of water volume to °C

x ( - ) / ( - )+ x ( - ) / ( - )= ℓ /dayHeating Capacity Calculation for sanitary usage

/ 1,000 x ( - ) = M cal / dayThe conversion of M cal to kW

/ 860 x 1,000 / = kWC. Total (A+B)

Total Heating Capacityx (100%

+x (100%

%) + x (100% %) = kWD. No. of units required

Safety factor; %%) / 12.5 kW* = units

units are required

TankPWFY unit 4

3 3

33

7

++

A. For Air conditioning using such as Panel Heaters, Floor Heating and Fan coil unitsRequired total heating capacity 20

10

1060

60

158

2030

1,200240

4045

1,200240

4045

1010

6060

1010

888

888

44.4

20

29.42 20

3

2.82

10

20

6.45 15 29.42

8 6.45

60 10 44.4

kWSafety factor; %

B. For Sanitary use such as Shower and BathroomsConditions

Tank inlet water Temp.; °CTank outlet water Temp.; °C(Set Temp -5 °C)Safety factor for Heat Loss; %Operating time; HoursFor Shower; 60 /person x Person = (Water Temp. Condition °C)

°C)For Bathrooms; 8 /Person x Person = (Water Temp. ConditionThe conversion of water volume to °C

x ( - ) / ( - )+ x ( - ) / ( - )= ℓ /dayHeating Capacity Calculation for sanitary usage

/1,000 x ( - ) = M cal / dayThe conversion of M cal to kW

/ 860 x 1,000 / = kWC. Total (A+B)

Total Heating Capacityx (100%

+x (100%

%) + x (100% %) = kWD. No. of units required

Safety factor; %%) /

TankPWFY unit 4

3 3

33

7

12.5 kW* = units

units are required


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15-2. Selecting an installation site

Do not install outdoors. The unit is not waterproof. Back up system is recommended in case of PWFY unit breakdown. The unit will get hot. Do not install in a location where heat gets trapped inside. Be sure to install unit in a place strong enough to withstand its weight.

Any lack of strength may cause unit to fall down, resulting in a personal injury. Do not install the unit where corrosive gas is generated. Have installation work in order to protect against earthquake.

Any installation deficiency may cause unit to fall down, resulting in a personal injury. Pay a special attention to the place, such as a basement, etc. where refrigeration gas can stay, since refrigeration is

heavier than the air. Do not install the unit where combustible gas may leak.

- If the gas leaks and accumulates around the unit, an explosion may result. When installing the unit in a hospital, communication station, or similar place, provide sufficient protection against noise.

- The inverter equipment, private power generator, high-frequency medical equipment, or radio communication equipment may cause the air conditioner to operate erroneously, or fail to operate. On the other hand, the air conditionermay affect such equipment by creating noise that disturbs medical treatment or image broadcasting.

Do not install the unit on a structure that may cause leakage.- When the room humidity exceeds 80% or when the drain pipe is clogged, condensation may drip from the indoor unit.

Perform collective drainage work together with the unit, as required. It is recommended that a water pump is connected to each PWFY unit.

15-3. Securing installation and service space

Please secure the following service spaces after installation.(All servicing can be performed from the front of the unit)

Be sure to install the unit in a location which can adequately support its weight.- If there is insufficient strength to support the unit's weight, it could fall and cause injuries.

(B)

400mm

▪ PWFY unit ▪ Solenoid valve kit

300mm

600mm(C)

(A)

(B)

(C)

150mm400mm

210mm

600mm

(A)

(A) Piping space (right side)(B) Top view(C) Service space (front side)

(A) Piping space (both sides)(B) Top view(C) Service space (front side)


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15-4. Installing the unit15-4-1. Lifting method

Be very careful when carrying the product.- Do not have only one person to carry product if it is more than 20 kg.- Do not tilt the unit while transporting.- PP bands are used to pack some products. Do not use them as a mean for transportation because they are dangerous.- Tear plastic packaging bag and scrap it so that children cannot play with it. Otherwise plastic packaging bag may

suffocate children to death.

Product net weight

15-4-2. Installation method

Using the anchoring holes shown below, firmly bolt the unit to the base.

Bases Be sure to install unit in a place strong enough to withstand its weight. If the base is unstable, reinforce with a concrete

base. The unit must be anchored on a level surface. Use a level to check after installation. If the unit is installed near a room where noise is a problem, using an anti-vibration stand on the base of the unit is

recommended.

Model PWFY-P100VM-E-BUNet weight 59 kg

Model PWFY-EP100VM-E1-AU PWFY-EP100VM-E2-AUNet weight 33 kg 36 kg

(A)

(B)

320200

(B)

(A)

150

171

207

205

300

450500525

▪ PWFY unit

(A) 4-ø14 (Anchoring hole)(B) (Top view)

(A) 4-ø14 (Anchoring hole)(B) (Top view)

▪ Solenoid valve kit

Unit: mm Unit: mm


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15-5. Refrigerant pipe and drain pipe specifications15-5-1. Refrigerant pipe and drain pipe specifications

To avoid dew drops, provide sufficient anti-sweating and insulating work to the refrigerant and drain pipes.When using commercially available refrigerant pipes, be sure to wind commercially available insulating material (with aheat-resisting temperature of more than 100 °C and thickness given below) onto both liquid and gas pipes.Be also sure to wind commercially available insulating material (with a form polyethylene's specific gravity of 0.03 and thickness given below) onto all pipes which pass through rooms.

1) Select the thickness of insulating material by pipe size.

2) If the unit is used on the highest story of a building and under conditions of high temperature and humidity, it is necessaryto use pipe size and insulating material's thickness more than those given in the table above.

3) If there are customer's specifications, simply follow them.

15-5-2. Refrigerant pipe, drain pipe and filling port

Unit: mm

Model PWFY-P100VM-E-BU PWFY-EP100VM-E1-AUPWFY-EP100VM-E2-AU PAC-SV01PW-E

Gas ø15.88 ø15.88 Depends on the pipe diameter of the PWFY unit to be connected.Liquid ø9.52 ø9.52

Drain ø32Insulating material's thickness More than 10 mm

▪ PWFY unit

(A) Refrigerant piping (gas)(B) Refrigerant piping (liquid)(C) Water inlet(D) Water outlet(E) Drain outlet*1: PWFY-P100VM-E1, E2-AU

(A) Refrigerant piping (gas)(B) Refrigerant piping (liquid)(C) Drain outlet(D) Front view(E) Left side view(F) Right side view

▪ Solenoid valve kit

(D)

(A)

(B)

(C)

(E)

480

100

191

54102

114

134

184 (206*1)

Unit: mm Unit: mm

153

86

5818

155

4012705121

(A)(B)

(A)

(B) (C)

(D)

(E)(F)


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15-6. Connecting refrigerant pipes and drain pipes15-6-1. Refrigerant piping work

This piping work must be done in accordance with the installation manuals for both outdoor unit and BC controller/WCB (simultaneous cooling and heating R2-Series). R2-Series is designed to operate in a system that the refrigerant pipe from an outdoor unit is received by BC controller/

WCB and branches at the BC controller/WCB to connect between indoor units. The PWFY unit should be connected to 2 ports on the BC controller. (Set BC controller DIP SW 4-6 to ON) For constraints on pipe length and allowable difference of elevation, refer to the outdoor unit installation manual. The method of pipe connection is brazing connection.

Install the refrigerant piping for the indoor unit in accordance with the following.1) Cut the tip of the indoor unit piping, remove the gas, and then remove the brazed cap.

2) Pull out the thermal insulation on the site refrigerant piping, braze the unit piping, and replace the insulation in its originalposition. Wrap the piping with insulating tape.

Pay strict attention when wrapping the copper piping since wrapping the piping may cause condensation instead of preventing it. Before brazing the refrigerant piping, always wrap the piping on the main body, and the thermal insulation piping, with

damp cloths to prevent heat shrinkage and burning the thermal insulation tubing. Take care to ensure that the flame does not come into contact with the main body itself.

15-6-2. Mixed system of PWFY-AU and Indoor unit (Y, HP (ZUBADAN), WY system)

Take one of the countermeasures listed below. 1) Install the External Solenoid Valve (except on PWFY-EP100VM-E2-AU)2) Add brine, assuming that the temperature will drop to -20°C.

Set Dip SW 1-10 (on ATW unit) to ON if brine is added. *Refer to P62 “Brine” in section 15-7. Water pipe installation.

* With the WY system, the above steps apply only when operating the WY at the water temperature below 10ºC.

(A) Cut here(B) Remove brazed cap

(A) Thermal insulation(B) Pull out insulation(C) Wrap with damp cloth(D) Return to original position(E) Ensure that there is no gap here(F) Wrap with insulating tape

(A)

(A)

(E)

(C)

(F)

(B)

(D)


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15-6-3. PWFY-AU in cooling operation (Y, HP (ZUBADAN), WY system)

Add brine, assuming that the temperature will drop to -20°C.Set Dip SW 1-10 (on ATW unit) to ON if brine is added.* With the WY system, the above steps apply only when operating the WY at the water temperature below 10ºC.

Cautions On Refrigerant Piping

Be sure to use non-oxidative brazing for brazing to ensure that no foreign matter or moisture enter into the pipe. Be sure to apply refrigerating machine oil over the flare connection seating surface and tighten the connection using a

double spanner. Provide a metal brace to support the refrigerant pipe so that no load is imparted to the indoor unit end pipe.

This metal brace should be provided 500 mm away from the indoor unit's flare connection.

When installing and moving the unit, do not charge it with refrigerant other than the refrigerant (R407C or R22) specified on the unit.

- Mixing of a different refrigerant, air, etc. may cause the refrigerant cycle to malfunction and result in severe damage.

Use refrigerant piping made of C1220 (CU-DHP) phosphorus deoxidized copper as specified in the JIS H3300 "Copper and copper alloy seamless pipes and tubes". In addition, be sure that the inner and outer surfaces of the pipes are clean and free of hazardous sulphur, oxides, dust/dirt, shaving particles, oils, moisture, or any other contaminant. Never use existing refrigerant piping.

- The large amount of chlorine in conventional refrigerant and refrigerator oil in the existing piping will cause the newrefrigerant to deteriorate.

Store the piping to be used during installation indoors and keep both ends of the piping sealed until just before brazing.- If dust, dirt, or water gets into the refrigerant cycle, the oil will deteriorate and the compressor may fail.

15-6-4. Drain piping work

1) Ensure that the drain piping is downward (pitch of more than 1/100) to the outdoor (discharge) side. Do not provide any trap or irregularity on the way. (a)

2) Ensure that any cross-wise drain piping is less than 20 m (excluding the difference of elevation). If the drain piping islong, provide metal braces to prevent it from waving. Never provide any air vent pipe. Otherwise drain may be ejected.

3) Use a hard vinyl chloride pipe VP-25 (with an external diameter of 32 mm) for drain piping.4) Ensure that collected pipes are 100 mm lower than the unit body's drain port as shown in (b).5) Do not provide any odor trap at the drain discharge port.6) Put the end of the drain piping in a position where no odor is generated.7) Do not put the end of the drain piping in any drain where ionic gases are generated.

(A) Downward slope 1/100 or more(B) Drain hose(C) Unit (D) Collective piping(E) Maximize this length to approx. 100 mm(A)

(B) (a)

(C) (C) (C)

(D) (b)

(E)


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15-7. Water pipe installation

Water circuit sample

Consider the following when designing and installing a water piping system. (Items (1)-(14) in the figure are explained below.)1) Union joints/flange joints etc.

Install a flange etc. to allow for easy replacement of connected equipment.2) Thermometer

For checking unit performance and operation monitoring3) Water pressure gauge

For operation status monitoring4) Valve

Install a valve for easy replacement and cleaning of the refrigerant flow control device. Install a refrigerant flow control valve on the fan coil outlet side.

5) Flexible jointRecommended to prevent the noise and vibration from the pump from being transmitted.

6) Drain pipeInstall the drain pipe with an inclination of between 1/100 and 1/200 to provide a downward flow of drain water.For cold climate installation, take an appropriate measure (e.g., drain heater) to prevent the drain water from freezing.

7) PumpUse a pump that is large enough to compensate for the total water pressure loss and to supply sufficient water to theunit.

8) Air vent valveProvide air vent valves on the pipes.

9) Expansion tankInstall an expansion tank to accommodate expanded water and to supply water.

10) Cold/Hot water pipeUse pipes that allow for easy air purging, and provide sufficient insulation.

11) Drain valveInstall drain valves so that water can be drained for servicing.

12) StrainerInstall a strainer near the PWFY unit to keep foreign materials from entering the water-side heat exchanger.

13) Flow switchInstall the supplied flow switch on the outlet pipe.

14) TankMinimum tank capacity: 100 L (Refer to [Fig. 3-1-D])

Water-side heat exchanger

Solid arrows in the figure indicate the direction of water flow.

PWFY Field supply

Tank Outlet

Inlet

City waterOverflowed water

Roof

To drain outlet

Uphill gradient ≥ 1/200

P

P

T

T

P

1)

1)

1)

1)

2)13)

2)

3)

3) 3)

4)

4) 4)4)

5)

5) 5)

6)

7)

8) 8)

9)

11) 11)12)

14) Tank

Sample of water circuit for PWFY


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Caution for water pipe installation

Consider the following when designing and installing a water piping system. Do not use steel pipes as water pipes.

- Copper pipes or stainless steel pipes are recommended. If iron pipes are used in the existing system, do not connecta new circuit to the old one. Keep the existing and new circuits separate.

Light pipes are similar to other air-conditioning pipes, however, please observe the following precautions during installation. Before a long period of non use, purge the water out of the pipes and thoroughly let them dry. Use a closed water circuit. When operating the unit, add brine to the circulating water to prevent it from freezing. To use brine in the system, DipSW 1-10

must be set to ON. When installed in a low-ambient temperature environment, keep the water circulating at all times. If that is not possible, purge

the water out of the pipes completely. Do not use the water used for this unit for drinking or food manufacturing. When the ambient temperature is 0 °C or lower during stop operation, keep the water circulating at all times, or purge the water

out of the pipes completely.

Selecting a water pumpUse a pump that is large enough to compensate for the total water pressure loss and to supply sufficient water to the unit.

Installing the strainer Install the strainer at the angle of 45˚ or less as shown in [Fig. 3-1-A]. Install the supplied strainer at the water inlet.

Precautions during installation

Use the reverse-return method to insure proper pipe resistance to each unit. To insure easy maintenance, inspection, and replacement of the unit, use a proper joint, valve, etc. on the water intake and

outlet port. In addition, be sure to install a strainer on the water intake pipe. (In order to maintain the heat source unit, a strainer on the circulating water inlet is necessary.)* An example of the heat source unit installation is shown in [Fig. 3-1-B]. Install a suitable air vent on the water pipe. After sending water through the pipe, be sure to vent the excess air. Condensed water may form in the low-temperature sections of heat source unit. Use a drainage pipe connected to the drain

valve at the base of the unit to drain the water. Install a back flow-prevention valve on the pump and a flexible joint to prevent excess vibration. Use a sleeve to protect the pipes where they go through a wall. Use metal fittings to secure the pipes, and install them so that they have maximum protection against breakage and bending. Do not confuse the water intake and outlet valves. This unit doesn't have any heater to prevent freezing within tubes. When the water flow is stopped on low ambient, take out the

water from tubes. The unused knockout holes should be closed and the opening of refrigerant pipes, water pipes, power source and transmission

wires should be filled with putty and so on to prevent from moisture or the invasion of insects. (field construction) Wrap some sealing tape around the screw part to prevent water leakage. Wrap the sealing tape as follows.

1) Wrap the joint with sealing tape in the direction of the threads (clockwise), and do not let the tape run over the edge.2) Overlap the sealing tape by two-thirds to three-fourths of its width on each turn. Press the tape with your fingers so that it is

pressed firmly against each thread.3) Leave the 1.5th through 2nd farthest threads away from the pipe and unwrapped. Hold the pipe on the unit side in place with a spanner when installing the pipes or strainer.

Tighten screws to a torque of 50 N.m. Water pipes can get very hot, depending on the preset temperature. Wrap the water pipes with insulating materials to prevent

burns. Install the expansion joint (accessory) at the inlet after installing the strainer, and outlet.

Model Water inlet Water outletPWFY-P100VM-E-BU R 3/4 Screw Rc 3/4 Screw

PWFY-EP100VM-E1-AU PWFY-EP100VM-E2-AU R 1 Screw *1 Rc 1 Screw *1

*1 When the attached expansion joints are installed.

45°

[Fig. 3-1-A]

Y-type strainer


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Example of unit installation

Insulation installationThe surface temperature of the water pipe would be very high, depending on the set temperature.Insulate the pipe to prevent burns. When operating PWFY-EP100VM-E1/E2-AU with cold water, insulate the water pipe to prevent condensation. Wrap insu-lation material around water pipes as shown in [Fig. 3-1-C].Any heat source piping.Indoor piping in cold-weather regions where frozen pipes are a problem.When air coming from the outside causes condensation to form on piping.Any drainage piping.

Flow switch installation

When installing the unit, be sure to install the supplied flow switch on the water outlet side of the unit and connect the wireto IN1 of TB142A on the unit.If the flow switch is not installed, the unit will emit the error signal (2100: Interlock error) andnot operate.* A short-circuit wire is supplied, but it is only for test run.

(A)

(A)(D)

(C)

(B)(E)(F)

(E)(B)

(C) (G)

[Fig. 3-1-B]

(A) Close valve(B) Water inlet(C) Water outlet(D) Refrigerant piping(E) Y-type strainer(F) Drain pipe(G) Expansion joint

(G)

Heat insulation material (accessory)

[Fig. 3-1-C] Inject with caulking material


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Installation procedures1) Remove the pipes attached to the flow switch.

Note: The unit is shipped with the pipes loosely tightened.2) Wrap seal tape around the threads at the end of the pipes, starting at the 1.5th or 2nd thread, and not over the openings.

Apply two to three wraps in the direction of the pipe threads (clockwise). Each course of the tape should overlap theone before it by 2/3 to 3/4 the width of the tape. Run your fingers around the threads and tape to press the tape into thethreads.Then, attach the pipes to the flow switch, holding parts A and B with a spanner. The maximum tightening torque is 60 N•m (611 kgf•cm).

3) Attach the flow switch and pipes to the water outlet in the horizontal position.The angle of the axis of the pipe should be less than 45 degrees.Check the direction of the flow switch as shown in Fig. C.

4) Connect the flow switch wire to IN1 of TB142A.From the External Wiring Input, route the wire as shown in Fig. D and connect it to the terminal as shown in Fig. E. Use a wire protector such as a rubber bushing in the access hole on the unit.

AA BB

Water OutletWater Outlet

OKOKOK OKOKOK

OKOKOK

45°45°45°

Not AcceptableNot AcceptableNot Acceptable

Not AcceptableNot AcceptableNot Acceptable

1) 2)

3)

Check the direction.Check the direction.

4)

Fig. C

Secure thewiring in place.Secure thewiring in place.Secure thewiring in place.

Enlarged viewEnlarged viewEnlarged view

Fig. D Fig. E

Flow SwitchFlow Switch

WireWire

Rubber bushingRubber bushingRubber bushing


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Water processing and water quality control

To preserve water quality, use the closed type of cooling tower for unit. When the circulating water quality is poor, the waterheat exchanger can develop scales, leading to a reduction in heat-exchange power and possible corrosion of the heat exchanger. Please pay careful attention to water processing and water quality control when installing the water circulation system.Removal of foreign objects or impurities within the pipes.During installation, be careful that foreign objects, such as welding fragments, sealant particles, or rust, do not enter the pipes.Water Quality Processinga) Depending on the quality of the cold-temperature water used in the air-conditioner, the copper piping of the heat

exchanger may become corroded. We recommend regular water quality processing.Cold water circulation systems using open heat storage tanks are particularly prone to corrosion.When using an open-type heat storage tank, install a water-to-water heat exchanger, and use a closed-loop circuit onthe air conditioner side. If a water supply tank is installed, keep contact with air to a minimum, and keep the level ofdissolved oxygen in the water no higher than 1mg/liter.

b) Water quality standard

Reference: Guideline of Water Quality for Refrigeration and Air Conditioning Equipment. (JRA GL02E-1994)c) Please consult with a water quality control specialist about water quality control methods and water quality calculations

before using anti-corrosive solutions for water quality management.d) When replacing a previously installed air conditioning device (even when only the heat exchanger is being replaced),

first conduct a water quality analysis and check for possible corrosion.Corrosion can occur in cold-water systems even if there has been no prior signs of corrosion.If the water quality level has dropped, please adjust water quality sufficiently before replacing the unit.Refer to the belowgraph for the maximum amount of circulating water in the water pipe. Make sure that this amount does not exceed.

pH (25 ˚C)Electric conductivity(mS/m) (25 ˚C) (μ s/cm) (25 ˚C)Chloride ion (mg Cl-/liter)Sulfate ion (mg SO42-/liter)Acid consumption (pH4.8) (mg CaCO3/liter)Total hardness (mg CaCO3/liter)Calcium hardness (mg CaCO3/liter)Ionic silica (mg SiO2/liter)Iron (mg Fe/liter)Copper

Sulfide ion

(mg Cu/liter)

(mg S2-/liter)

Ammonium ion (mg NH4+/liter)Residual chlorine (mg Cl/liter)Free carbon dioxide (mg CO2/liter)Ryzner stability index

Standard items

Refer-ence items

ItemsLower mid-range temperature water system

Water Temp. =< 60 ˚C

7.0 ~ 8.030 or less

[300 or less]50 or less50 or less

50 or less

70 or less50 or less30 or less1.0 or less1.0 or lessnot to be detected

0.3 or less0.25 or less0.4 or less

–

7.0 ~ 8.030 or less


50 or less



–

Tendency

Recirculating water Make-up water Corrosive Scale-forming

Higher mid-range temperature water systemWater Temp. > 60 ˚C

Recirculating water Make-up water7.0 ~ 8.030 or less


50 or less



–

7.0 ~ 8.030 or less


50 or less



–

[Fig. 3-1-D] Maximum circulating water

0

100

200

300

400

500

0 10 20 30 40 50 60 70Total hardness [mg/L]

Wat

er v

olum

e lim

itatio

n [L

]

0

500

1000

1500

2000

2500

3000

0 10 20 30 40 50 60 70Total hardness [mg/L]

Wat

er v

olum

e lim

itatio

n [L

]

PWFY-P100VM-E-BU

Condition: Water outlet temp. 70°C Condition: Water outlet temp. 45°C


Available water volume area Available water volume area

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Brine

When PWFY-AU is used under the conditions described in 15-6-2. and 15-6-3. Brine is required to add.

Set Dip SW 1-10 (on ATW unit) to ON if brine is added.

Brine concentration [wt%]

Free

zing

tem

pera

ture

[ºC

]

0-30

-25

-20

-15

-10

-5

0

5

10 20 30 40 50 60 70

Brine concentration [wt%]

Rat

io o

f cap

acity

[-]

00

0.2

0.4

0.6

0.8

1

1.2

10 3020 40 50 60 70 80 90 100

ethylene glycol

propylene glycol

Brine concentration (wt%)

Rat

io o

f pre

ssur

e dr

op (-

)

0.5

1

1.5

2

2.5

3

3.5

4

0 10 3020 40 50 60 70 80 90 100

ethylene glycol

propylene glycol


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Pump interlock

The unit may become damaged if it is operated with no water circulating through the pipes.Be sure to interlock unit oper-ation and the water-circuit pump. In the system including PWFY-P100VM-E-BU, use the terminal blocks for interlocking TB142A (IN1) that can be found onthe unit.

In the system including PWFY-EP100VM-E1/E2-AU, the circulating water may freeze, and result in a unit malfunction.Perform the electrical work as shown in [Fig. 3-1-F] to prevent water from freezing.Set the Dip SW as shown in the tablebelow.

Be sure to turn on the power supply of the pump, since the control does not work if the power supply of the pump is turnedoff.*Refer to P59 “Flow switch installation” for details.

Water Pump

Strainer

Control Box

Broken lines are fieldsupply products.

Operation signalPump interlock

Example drawing for pump interlock

[Fig. 3-1-E]

IN1

TB142A

DipSW3-6 External output contactON Effective when Thermo-ON

OFF Effective when Operation-ON (Remote controller-ON)

Board

F

NL

52P

[Fig. 3-1-F]

F: Fuze52P: Magnetic contactor for heat source water pumpMCB: Circuit breakerWP: Water pump

MCB

WP

TB141A OUT1AC220V ~ 240V

DC30V or lessor

52P


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In a system that includes PWFY-EP100VM-E1-AU, if the operation of the pump is interlocked with the operation of the airconditioning units AND if the Solenoid valve kit (PAC-SV01PW-E) is connected to the system, connect the wires as shownin [Fig. 3-1-G]. Set Dip SW3-6 to ON, and make sure that the version of the software is 1.18 or later. (PWFY-EP100VM-E2-AU do not need a solenoid valve kit because they are built in with the same functions.)

Anti freeze mode (Dip SW4-4 ON)

Anti freeze mode is to prevent water pipe from freezing.The Anti freeze mode can set the heating temperature range be-tween 10ºC~45ºC enabling the unit to maintain low water temperature to prevent water pipes from freezing.

Board

PWFY

Solenoidvalve kit

NL

52P

MCB

WP

TB141A OUT1AC220V ~ 240V

AC220V ~ 240V

TB1 TB2

DC30V or lessor

F

1 2 3 L N

L N

52P

[Fig. 3-1-G]

F: Fuze52P: Magnetic contactor for heat source water pumpMCB: Circuit breakerWP: Water pump


MEES20K026New publication effective June 2020

Specifications subject to change without notice

WarningDo not use refrigerant other than the type indicated in the manuals provided with the unit and on the nameplate.- Doing so may cause the unit or pipes to burst, or result in explosion or fire during use, repair, or at the time of disposal of the unit.- It may also be in violation of applicable laws.- MITSUBISHI ELECTRIC CORPORATION cannot be held responsible for malfunctions or accidents resulting from the use of the wrong

type of refrigerant.Our air conditioning equipment and heat pumps contain a fluorinated greenhouse gas, R134a or R410A depending on the product.

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MODEL PWFY-P100VM-E-BU PWFY-EP100VM-E1-AU PWFY … · 1. GENERAL EQUIPMENT DESCRIPTIONS AIR TO...

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