Concealed Chilled WaterVertical Fan Coil Units

VWX SeriesVWX03 thru VWX10

300 CFM thru 1000 CFM

2

Company BusinessZamil Air Conditioners was founded in 1974 as one of the first air conditioning business to be established in Saudi Arabiaand today is a leading international manufacturer of air conditioning systems and is No. 1 in the Middle East.

Zamil Air conditioners manufactures both consumer and central air conditioners and has sales operations in over 55countries in the Middle East, Europe, Africa and Asia.

The company’s operations are structured into four Strategic Business Units (SBUs) supporting five in-house product andservice brands as well as a number of international brands under the OEM sales.

The five in-house brands are Classic, Cooline, CoolCare, Clima Tech and Geoclima.

The four SBUs are:1. Consumer Business Unit supporting Classic, Cooline, GE and OEM brands for consumers.2. Unitary & Applied Business Unit supporting Classic, Cooline, GE and OEM brands for commercial and industrial cus-

tomers.3. Zamil CoolCare providing engineering & project management services, HVAC maintenance, retrofit services and parts.4. Geoclima srl is an independent business supporting other SBUs for their requirement of Chillers & Double skin AHU’s.

The first three SBUs - Consumer Products, Unitary & Applied Products and CoolCare Service direct their business opera-tions from the corporate headquarters at Dammam, Saudi Arabia.

Geoclima has its engineering & production departments located at Monfalcone, Italy and has a design center in Austria.

All the four SBUs, while operating independently, supplement each other’s activities in a way that makes synergy work atits best and achieve the corporate goals of maximizing customer satisfaction.

Factories and ProductionsZamil Air Conditioners has two manufacturing plants in Dammam, Saudi Arabia and has one speciality production facility inItaly operated by Geoclima.

The company can produce up to 550,000 Room Air Conditioners, 300,000 Mini-Split systems and 50,000 Central AirConditioning systems per year.

Quality & Product CertificatesThe Quality systems and policies at Zamil Air Conditioners comply with the required ISO 9001:2000 certification.

Zamil Air Conditioners is the first company in Saudi Arabia to receive the SASO (Saudi Arabia’s Standard Organization)Certificate for Room Air Conditioners. ZAC's products are also certified with:1. CE (Council of European Community)2. UL (Underwriters Laboratory)3. Eurovent4. DEMKO5. ETL

Other awards include the prestigious Engineering Excellence Award of General Electric and the inaugural Prince Mohammedbin Fahd Al Saud Award for Factory Safety.

Our ProductsIn addition to the consumer products such as the Room Air Conditioners (RAC) and the Mini Splits, Zamil AirConditioners manufacturers a host of residential, commercial and industrial air conditioners. This broad range extendsfrom the Concealed Units up to 5 tons, the Ducted Splits up to 30 tons, the Packaged Units up to 90 tons, the Single andDouble Skin Air Handling Units up to 70,630 CFM and the Water Chillers up to 660 tons cooling capacity.

1

CONTINUING RESEARCH RESULTS IN STEADY IMPROVEMENTS.THEREFORE, THESE SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE.

Contents Page

Model decoding ......................................................................................................................................... 2

Unit features ............................................................................................................................................. 2

Standard specifications .......................................................................................................................... 2-3

Options ..................................................................................................................................................... 3

Physical data ............................................................................................................................................ 4

Hot water capacities .................................................................................................................................. 4

Cooling capacities .................................................................................................................................. 5-6

Fan performance data ............................................................................................................................... 7

Unit dimensions ........................................................................................................................................ 8

Coil connection dimensions ....................................................................................................................... 8

Typical schematic wiring diagram ........................................................................................................ 9-10

Installation .............................................................................................................................................. 11

Electrical ................................................................................................................................................. 11

Maintenance ........................................................................................................................................... 11

Valve packages ...................................................................................................................................... 12

Recommended spare parts .............................................................................................................. 12

Parts list ................................................................................................................... ..................... 13

INDEX

1, 2 & 3BASIC (SERIES)

4 & 5SIZE

(x 100 CFM)

6ELECTRICAL

SUPPLY (V-Ph-Hz)

13OPTION

VWXCONCEALED

CHILLED WATERFAN COIL UNIT,

VERTICALSERIES

03

04

06

08

10

C : 208/230-1-60 N :STANDARD UNIT

12FILTER

N :NONE

A :ALUMINUM (1" THICK)

11COIL

CONNECTION

R : RH SIDE,STANDARD(FACING AIRDISCHARGE)

L : LH SIDE,OPTIONAL(FACING AIRDISCHARGE)

10FIN

A : ALUMINUMFIN

B : COATEDALUMINUMFIN

C : COPPER FIN

9ACCESSORIES

N : STANDARD

B : 3D VALVE PACKAGE(COOL ONLY)

K : 4D VALVE PACKAGE(HEAT & COOL)

8HEATER

N : NO HEATER

E : 3 kW

F : 4 kW

N : NO HEATER

G : 5 kW

H : 6 kW

J : 7 kW

7COIL

A : 3 ROW CHILLEDWATER

J : 3 ROW CHILLEDWATER + 1 ROWHEAT

UNIT FEATURESCOMPACT DIMENSIONSIdeal to fit into tight spaces.

QUIET, PULSE FREE AIR DELIVERYCentrifugal fans that are statically and dynamically balanced, handle up to 0.25" w.g. external static pressure allowing youto keep the unit away from your comfort zone.

STANDARD SPECIFICATIONSGENERALThese ducted indoor fan coil units are designed for remote out of the way installation. The unit can be placed on the floor orhung to a wall to provide additional floor space. The slim line design makes this unit ideal for ducted application in publicbuildings, office space, hospitals, hotels and mechanical rooms.

UNIT CONSTRUCTIONBasic unit is fabricated of heavy gauge galvanized steel to ensure lasting durability and dependable performance withminimum maintenance. The panels are insulated to provide positive protection against sweating.

Access to the blower motor assembly is provided through the removable front access panel from where the completecondensate pan and blower assembly can be removed for servicing.

The standard arrangement provides a 1" top discharge duct collar or an optional front discharge and a permanent cleanable1" thick aluminum filter in the bottom return air space.

MOTORSAll motors are resilient mounted, three speed, tap wound, with built in thermal overload protection which are factory wired tothe speed selector switch. Motor bearing are of the sleeve type with oil tubes provided & oversize oil reservoirs to assurelong bearing life without unnecessary frequent oiling.

FANSThe centrifugal, forward curved, double width fan wheels are statically & dynamically balanced to assure smooth & quietoperation. Blower housing are rugged galvanized steel to provide added rigidity.

COILSCoils have 3/8" OD copper tubes mechanically bonded to the aluminum fins. As an option, corrugated copper or coatedaluminum fins may be provided. The standard chilled water coil is 3 Rows for all models. For heating application, the coils

MODEL DECODING

2

are split as 3 row chilled water + 1 row hot water. All coils are leak tested at 350 psig minimum pressure and are suitablefor working pressure up to 250 psig.Coil connections are 5/8" OD male sweat. Coil conform to ARI 410.

DRAIN PANThese units have a combination of drain and fan deck assembly fabricated of heavy gauge galvanized steels & insulatedwith fire retardant closed cell foam.All units are provided with an auxiliary drain pan with 7/8" OD copper connection.

DRIP LIPThe purpose of drip lip is to capture any condensate from valve packages and direct it to drain pan. It is fabricated of asingle metal formed to fit on the side of drain pan. They may be installed in the field and should always be pitched towardsdrain pan to assure proper drainage. This will be supplied loose for field installation along with valve package.

OPTIONSELECTRICAL HEATERSThe heating element is made of tubular finned sheath coil of the highest grade resistance wire precisely centered in a1/2" dia. Copper plated steel sheath and insulated from the sheath by magnesium oxide powder. Through the applicationof mechanical force, the powder is packed to a rock like density, insuring rapid heat dissipation from the resistance coil tothe sheath section at each end of the element is unheated to remove source of heat from the terminals. The surface areaexposed to the air is increased by the application of 1-1/4" OD fins. The fin is made of steel wound around the element ina continuous spiral which makes five turns per linear inch of element. The sheath and fin are permanently bondedtogether by copper brazing.

VALVE PACKAGESValve packages, as a set are available as an option (3D for two-pipe system and 4D for four-pipe system). These valvesare supplied loose for field installation.

THERMOSTATAn attractive wall mounted 3-speed electronic thermostat with all required functions and features for safe and smoothoperation, which can be used, for cooling and heating. This thermostat can be supplied loose through separate Kitnumber.

TYPICAL THERMOSTAT

3

PHYSICAL DATA

HOT WATER CAPACITIES

MODELNUMBER

EWT - 1500F (650C)

VWX03 1.0 (0.063) 8.0 (2.34) 1.25 (0.08) 12.0 (3.51)

VWX04 1.2 (0.075) 11.4 (3.33) 1.8 (0.11) 17.6 (5.15)

VWX06 1.7 (0.107) 16.5 (4.83) 2.6 (0.16) 25.8 (7.55)

VWX08 2.4 (0.15) 23.4 (6.85) 3.7 (0.233) 36.8 (10.77)

VWX10 2.8 (0.176) 27.6 (8.1) 4.4 (0.277) 44.1 (12.91)

GPM (LPS) CAPACITIESMBH (kW)

EWT - 1800F (820C)

GPM (LPS) CAPACITIESMBH (kW)

NOTE: Capacities @ 700F (210C) Entering Air Temperature & 200F (110C) Water Temperature Drop.

LEGEND: EWT - Entering Water Temperature; MBH - 1000 BTUH; GPM - Gallons Per Minute; LPS - Liters Per Second

MODEL NUMBER VWX03 VWX04 VWX06 VWX08 VWX10

SOUND PRESSURE LEVEL, dBA (High/Medium/Low) @ 3 Meters 43/41/39 45/43/41 47/45/42 48/46/43 50/48/46

EVAPORATOR BLOWER Type Centrifugal

Blower size 146 x 203 146 x 203 146 x 203 146 x 203 146 x 203

Quantity 1 2 2 4 4

BLOWER MOTOR FLA/Watts 0.37/85 0.71/170 0.89/190 1.42/340 1.78/380

Quantity 1 1 1 2 2

EVAPORATOR COIL Type Corrugated fin & tube

Rows, std. chilled water 3 3 3 3 3

Rows, split (chilled + hot water) 3+1 3+1 3+1 3+1 3+1

Tube dia - FPI 3/8 - 12 3/8 - 12 3/8 - 12 3/8 - 14 3/8 - 14

Face area, Sq. ft. (Sq. m.) 1 (0.09) 1.5 (0.14) 2.1 (0.20) 3 (0.29) 3.4 (0.32)

Water in/out size (inch), Chilled water 5/8 5/8 5/8 5/8 5/8

Water in/out size (inch), Hot water 5/8 5/8 5/8 5/8 5/8

Condensate drain connection (inch) 7/8 7/8 7/8 7/8 7/8

RETURN AIR FILTER Size (inch) 7-3/4 x 21-3/4 7-3/4 x 31-3/4 7-3/4 x 41-3/4 7-3/4 x 57-3/4 7-3/4 x 65-3/4(1" THICK)

Quantity 1 1 1 1 1

SHIPPING WEIGHT kg. (approx.) 23 33 37 64 77

4

CHILLED WATER COOLING CAPACITIES (ENGLISH UNITS)

UNITSIZE

03

04

06

08

10

03

04

06

08

10

03

04

06

08

10

WTR(0F)

8

10

12

7.02

9.7

14.38

19.58

23.9

6.57

9.07

12.44

17.2

20.8

6.41

8.22

11.41

14.7

17.25

5.68

7.7

11.5

15.38

18.9

5.35

7.32

10.14

13.8

16.82

5.25

6.73

9.43

12.0

14.27

2.0

2.45

3.7

4.9

6.0

1.6

2.05

2.5

3.45

4.2

1.5

1.6

2.1

2.45

2.9

ENTERING AIR TEMP. = 760F DB/630F WB (@ HIGH SPEED) ENTERING AIR TEMP. = 800F DB/670F WB (@ HIGH SPEED)

ENTERING AIR TEMP. = 840F DB/710F WB (@ HIGH SPEED)

NOTE:1. Capacities are based on 3 row coil.

2. For any other conditions, please use selection software for fan coil units.Apart from capacities, this software provides;

a) Sensible heat ratio

b) Leaving air temperature (DB/WB) - 0F

c) Leaving water temperature - 0F

d) Leaving water velocities (FPM)

e) Water pressure drop (feet of water)

LEGEND:TC - Total Capacity (MBH)

SC - Sensible Heat Capacity (MBH)

WTR - Water Temperature Rise (0F)

EWT - Entering Water Temperature (0F)

GPM - Water flow (Gallons Per Minute)

450F EWTTC SC GPM

9.0

12.72

19.34

26.2

32.64

8.52

11.67

17.53

23.93

29.3

8.0

11.43

15.67

21.61

26.18

6.5

9.12

13.82

18.51

23.0

6.21

8.45

12.67

17.0

20.9

5.92

9.3

11.46

15.6

19.0

2.3

3.2

5.0

6.5

8.2

1.9

2.35

3.6

4.8

5.9

1.6

2.2

2.65

3.6

4.4

400F EWTTC SC GPM

5.04

6.92

9.4

13.0

15.54

4.94

6.33

7.73

10.0

10.4

4.81

6.14

7.4

9.56

9.91

4.96

6.71

9.2

12.5

15.1

4.87

6.24

7.73

10.0

10.4

4.76

6.09

7.4

9.56

9.91

1.6

2.0

2.4

3.3

3.9

1.5

1.6

1.7

2.0

2.1

1.4

1.5

1.6

1.9

2.0

500F EWTTC SC GPM

ENGLISH

UNITS

UNITSIZE

03

04

06

08

10

03

04

06

08

10

03

04

06

08

10

WTR(0F)

8

10

12

12.2

17.4

26.82

36.7

44.2

11.4

16.3

24.53

33.5

41.56

10.6

15.22

22.81

31.31

40.23

8.0

11.32

17.31

23.32

28.2

7.54

10.64

16.02

21.6

26.75

7.1

10.05

15.05

20.21

26.0

3.1

4.5

7.0

9.2

10.1

2.3

3.3

5.0

6.7

8.3

1.78

2.58

3.9

5.2

6.7

450F EWTTC SC GPM

14.5

20.81

31.55

42.56

51.0

13.6

19.52

29.82

40.82

50.2

12.82

18.36

27.83

37.85

48.5

9.0

12.75

19.3

25.76

31.0

8.47

12.0

18.34

24.81

30.61

8.03

11.38

17.22

23.17

29.68

3.7

5.35

7.7

9.5

10.3

2.75

4.0

6.2

8.2

9.8

2.15

3.1

4.8

6.3

7.7

400F EWTTC SC GPM

9.9

14.15

22.7

29.3

36.6

9.2

13.0

19.6

26.85

32.9

8.31

12.0

17.8

24.53

31.1

7.2

10.11

16.0

20.4

25.5

6.8

9.5

14.2

19.0

23.4

6.24

8.81

13.1

17.63

22.3

2.5

3.6

6.8

7.3

9.2

1.85

2.65

4.0

5.4

6.6

1.4

2.0

3.0

4.1

5.2

500F EWTTC SC GPM

UNITSIZE

03

04

06

08

10

03

04

06

08

10

03

04

06

08

10

WTR(0F)

8

10

12

17.96

26.0

38.3

49.9

59.9

17.0

24.3

37.0

49.3

59.5

10.05

23.0

34.7

48.0

56.2

10.16

14.5

21.4

27.7

33.41

9.64

13.66

20.76

27.42

32.22

9.2

13.01

19.61

26.75

31.5

4.7

6.8

8.5

9.2

10.0

3.5

5.0

7.4

8.8

9.8

2.7

3.9

5.8

8.0

8.2

450F EWTTC SC GPM

20.14

29.0

43.0

55.9

67.12

19.25

27.7

41.8

55.0

66.4

18.34

26.31

40.0

54.1

65.5

11.04

15.76

23.3

30.3

36.4

10.6

15.12

22.8

29.8

36.3

10.12

14.41

21.8

29.4

35.7

5.0

7.0

8.8

9.5

10.35

3.95

5.7

8.0

9.0

10.0

3.1

4.5

6.7

8.4

9.6

400F EWTTC SC GPM

15.52

22.4

33.3

43.5

52.5

14.64

20.95

31.8

43.1

52.54

13.85

19.7

29.7

40.8

50.4

9.27

13.14

19.6

25.3

30.72

8.82

12.42

18.8

25.0

30.74

8.41

11.8

17.8

23.9

29.72

4.0

5.8

7.7

8.5

9.5

3.0

4.3

6.4

8.2

9.5

2.35

3.3

5.0

6.8

8.4

500F EWTTC SC GPM

5

CHILLED WATER COOLING CAPACITIES (METRIC UNITS)

ENTERING AIR TEMP. = 250C DB/170C WB (@ HIGH SPEED) ENTERING AIR TEMP. = 270C DB/19.50C WB (@ HIGH SPEED)

ENTERING AIR TEMP. = 290C DB/21.50C WB (@ HIGH SPEED)

NOTE:1. Capacities are based on 3 row coil.

2. For any other conditions, please use selection software for fan coil units.Apart from capacities, this software provides;

a) Sensible heat ratio

b) Leaving air temperature (DB/WB) - 0C

c) Leaving water temperature - 0C

d) Leaving water velocities (m/s)

e) Water pressure drop (kp)

LEGEND:TC - Total Capacity (kW)

SC - Sensible Heat Capacity (kW)

WTR - Water Temperature Rise (0C)

EWT - Entering Water Temperature (0C)

LPS - Water flow (Liters Per Second)

METRIC

UNITS

UNITSIZE

03

04

06

08

10

03

04

06

08

10

03

04

06

08

10

WTR(0C)

5

6

7

2.1

2.8

4.2

5.7

7.0

1.9

2.7

3.6

5.0

6.1

1.9

2.4

3.3

4.3

5.1

1.7

2.3

3.4

4.5

5.5

1.6

2.1

3.0

4.0

4.9

1.5

2.0

2.8

3.5

4.2

0.13

0.15

0.23

0.31

0.38

0.10

0.13

0.16

0.22

0.26

0.09

0.10

0.13

0.15

0.18

70C EWTTC SC LPS

2.6

3.7

5.7

7.7

9.6

2.5

3.4

5.1

7.0

8.6

2.3

3.3

4.6

6.3

7.7

1.9

2.7

4.0

5.4

6.7

1.8

2.5

3.7

5.0

6.1

1.7

2.7

3.4

4.6

5.6

0.14

0.20

0.32

0.41

0.52

0.12

0.15

0.23

0.30

0.37

0.10

0.14

0.17

0.23

0.28

40C EWTTC SC LPS

1.5

2.0

2.8

3.8

4.6

1.4

1.9

2.3

2.9

3.0

1.4

1.8

2.2

2.8

2.9

1.5

2.0

2.7

3.7

4.4

1.4

1.8

2.3

2.9

3.0

1.4

1.8

2.2

2.8

2.9

0.10

0.13

0.15

0.21

0.25

0.09

0.10

0.11

0.13

0.13

0.09

0.09

0.10

0.12

0.13

100C EWTTC SC LPS

UNITSIZE

03

04

06

08

10

03

04

06

08

10

03

04

06

08

10

WTR(0C)

5

6

7

5.26

7.61

11.22

14.61

17.54

4.98

7.12

10.83

14.44

17.42

2.94

6.73

10.16

14.06

16.46

2.98

4.25

6.27

8.11

9.78

2.82

4.0

6.08

8.03

9.43

2.69

3.81

5.74

7.83

9.22

0.30

0.43

0.54

0.58

0.63

0.22

0.32

0.47

0.55

0.62

0.17

0.25

0.37

0.50

0.52

70C EWTTC SC LPS

5.90

8.49

12.59

16.37

19.65

5.64

8.11

12.24

16.11

19.44

5.37

7.70

11.71

15.84

19.18

3.23

4.61

6.82

8.87

10.66

3.10

4.43

6.68

8.73

10.63

2.96

4.22

6.38

8.61

10.45

0.32

0.44

0.55

0.60

0.65

0.25

0.36

0.50

0.57

0.63

0.20

0.28

0.42

0.53

0.60

40C EWTTC SC LPS

4.54

6.56

9.75

12.74

15.37

4.29

6.13

9.31

12.62

15.39

4.06

5.77

8.70

11.95

14.76

2.71

3.85

5.74

7.41

9.0

2.58

3.64

5.51

7.32

9.0

2.46

3.46

5.21

7.0

8.7

0.25

0.37

0.49

0.54

0.60

0.19

0.27

0.40

0.52

0.60

0.15

0.21

0.32

0.43

0.53

100C EWTTC SC LPS

UNITSIZE

03

04

06

08

10

03

04

06

08

10

03

04

06

08

10

WTR(0C)

5

6

7

3.57

5.10

7.85

10.75

12.94

3.34

4.77

7.18

9.81

12.17

3.10

4.46

6.68

9.17

11.78

2.34

3.31

5.07

6.83

8.26

2.21

3.12

4.69

6.33

7.83

2.08

2.94

4.41

5.92

7.61

0.20

0.28

0.44

0.58

0.64

0.14

0.21

0.32

0.42

0.52

0.11

0.16

0.25

0.33

0.42

70C EWTTC SC LPS

4.25

6.09

9.24

12.46

14.93

3.98

5.72

8.73

11.95

14.70

3.75

5.38

8.15

11.08

14.20

2.64

3.73

5.65

7.54

9.08

2.48

3.51

5.37

7.27

8.96

2.35

3.33

5.04

6.78

8.69

0.23

0.34

0.49

0.60

0.65

0.17

0.25

0.39

0.52

0.62

0.14

0.20

0.30

0.40

0.49

40C EWTTC SC LPS

2.90

4.14

6.65

8.58

10.72

2.69

3.81

5.74

7.86

9.63

2.43

3.51

5.21

7.18

9.11

2.11

2.96

4.69

5.97

7.47

1.99

2.78

4.16

5.56

6.85

1.83

2.58

3.84

5.16

6.53

0.16

0.23

0.43

0.46

0.58

0.12

0.17

0.25

0.34

0.42

0.09

0.13

0.19

0.26

0.33

100C EWTTC SC LPS

6

0.0 0.05 0.1 0.15 0.2 0.25

HIGH 350 343 322 308 293 275

VWX03 MEDIUM 320 308 293 275 261 240

LOW 310 285 264 240 222 202

HIGH 450 419 395 373 350 320

VWX04 MEDIUM 390 366 342 323 297 267

LOW 350 323 301 282 257 226

HIGH 670 632 587 560 532 497

VWX06 MEDIUM 580 552 527 500 474 441

LOW 490 453 428 409 369 350

HIGH 810 767 733 689 651 602

VWX08 MEDIUM 730 689 648 608 567 529

LOW 640 588 562 518 482 430

HIGH 1020 982 947 896 852 805

VWX10 MEDIUM 930 891 847 809 764 706

LOW 830 794 752 708 668 627

FAN PERFORMANCE DATAENGLISH UNITSCFM @ EXTERNAL STATIC PRESSURE (Inches of water)BLOWER

MOTORSPEED

MODELNUMBER

ENGLISH

UNITS

NOTE: 1. Values include losses for dry coil and filters.2. For additional hot water row, add 0.1" WG to the ESP.

METRIC

UNITS

METRIC UNITS

NOTE: 1. Values include losses for dry coil and filters.2. For additional hot water row, add 25 pascal to the ESP.

0.0 12.5 25 37.5 50 62.5

HIGH 165 162 152 145 138 130

VWX03 MEDIUM 151 145 138 130 123 113

LOW 146 134 125 113 105 95

HIGH 212 198 186 176 165 151

VWX04 MEDIUM 184 173 161 152 140 126

LOW 165 152 142 133 121 107

HIGH 316 298 277 264 251 235

VWX06 MEDIUM 274 260 249 236 224 208

LOW 231 214 202 193 174 165

HIGH 382 362 346 325 307 284

VWX08 MEDIUM 344 325 306 287 268 250

LOW 302 277 265 244 227 203

HIGH 481 463 447 423 402 380

VWX10 MEDIUM 439 420 400 382 361 333

LOW 392 375 355 334 315 296

LITERS PER SECOND @ EXTERNAL STATIC PRESSURE (Pascal)BLOWERMOTORSPEED

MODELNUMBER

7

UNIT DIMENSIONSMODELS: VWX03 - VWX10

MODELA B C D

VWX03 597 (23.5) 559 (22) 457 (18) 406 (16) 1 1

VWX04 851 (33.5) 813 (32) 711 (28) 660 (26) 1 2VWX06 1105 (43.5) 1067 (42) 965 (38) 914 (36) 1 2VWX08 1511 (59.5) 1473 (58) 1372 (54) 1321 (52) 2 4VWX10 1715 (67.5) 1676 (66) 1575 (62) 1524 (60) 2 4

DIMENSIONS

NOTE: All dimensions are in mm (dimensions in brackets are in inches).

COIL CONNECTION DIMENSIONS

INLETOUTLET

NOTE: All dimensions are in mm (dimensions in brackets are in inches).

CHILLED WATER & HOT WATERCHILLED WATER

No. OF MOTORS No. OF BLOWERS1. Mounting holes (4 No.)2. Air vent3. Drain pan4. 5/8" OD coil outlet5. 5/8" OD coil inlet6. 7/8" OD drain7. Control box8. Heater9. Filter10.Return air

8

163 [6.4]

401

[15.

8] 555

[21.

9]

102

[4.0

]

82 [3.2]

171 [6.7]

575

[22.

6]

550

[21.

7]

102

[4.0

]

154

[6.1

]

193 [7.6]

154

[6.1

]

104 [4.1]

74 [2.9]

44 [1.7]127 [5.0]

1160 [45.7]

C

D

171 [6.7]

95 [3.7]

168 [6.6]

95 [3.7]

25 [1.0]

178 [7.0]

180 [7.1]

230 [9.1]

193 [7.6]

AB

10 [0.4]

102 [4.0]

19 [0.7] 19 [0.7]

10 [0.4]

634 [25.0]

RETURN AIR

TOP VIEW

FRONT VIEW END VIEW

TYPICAL SCHEMATIC WIRING DIAGRAMHEAT/COOL MODELS - ELECTRIC HEATER

LEGEND

ATB AUXILIARY TERMINAL BLOCK

COM COMMON

EV ELECTRIC VALVE

FM FAN MOTOR

GND LUG GROUND

HC HEATER CONTACTOR

L/L1 LINE OR LINE 1

L2/N LINE 2 OR NEUTRAL

OHT OVER HEAT THERMOSTAT_ _ _ FIELD WIRING

FACTORY WIRING

NOTES1 . POWER SUPPLY, 208/230V-1PH-60Hz.

2. USE COPPER CONDUCTOR WIRES ONLY.

3. USE HEATER AS PER OPTION REQUIRED. IFHEATERS ARE FACTORY INSTALLED, PLEASEREAD BROKEN LINES AS CONTINUOUS LINES.

4. FM2 NOT REQUIRED FOR SINGLE MOTORAHU. IF FM2 IS FACTORY INSTALLED, PLEASEREAD BROKEN LINES AS CONTINUOUS LINES.

5. HEATER 2 IS NOT REQUIRED FOR SINGLEHEATER CIRCUIT.

6. FREE END OF FAN MOTOR LEADS TO BECAPPED WITH CRIMPABLE WIRE NUT.

7. HVTB NOT REQUIRED FOR HEATER MODELS.

8. FUSED DISCONNECT SWITCH OR CIRCUITBREAKER TO BE PROVIDED BY CONSUMERWITH RATING AS RECOMMENDED BY MANU-FACTURER.

9

TYPICAL SCHEMATIC WIRING DIAGRAMHEAT/COOL MODELS - HOT WATER

LEGEND

ATB AUXILIARY TERMINAL BLOCK

CAP CAPACITOR

EV ELECTRIC VALVE

FM FAN MOTOR

GND LUG GROUND

HC HEATER CONTACTOR

L/L1 LINE OR LINE 1

L2/N LINE 2 OR NEUTRAL

OHT OVER HEAT THERMOSTAT_ _ _ FIELD WIRING

FACTORY WIRING

NOTES1. POWER SUPPLY, REFER TO UNIT NAMEPLATE.

2. USE COPPER CONDUCTOR WIRES ONLY.

3. IF EV1 IS FACTORY INSTALLED, PLEASE READBROKEN LINES AS CONTINUOUS LINES.

4. FM2 NOT REQUIRED FOR SINGLE MOTORAHU. IF FM2 IS FACTORY INSTALLED, PLEASEREAD BROKEN LINES AS CONTINUOUS LINES.

5. FREE END OF FAN MOTOR LEADS TO BECAPPED WITH CRIMPABLE WIRE NUT.

6. FUSED DISCONNECT SWITCH OR CIRCUITBREAKER TO BE PROVIDED BY CONSUMERWITH RATING AS RECOMMENDED BY MANU-FACTURER.

10

INSTALLATIONThe complete shipment should be inspected for damage. Any damage, visible or concealed, should be reported immedi-ately to the delivery man or driver and noted on the shipping invoice.

Place unit in position and make sure that unit is level. This is important to assure proper drainage and operation. Slotsprovided in the mounting brackets should be used for installing the units. Please ensure to leave sufficient space/clearance for return air while installing the unit.

ELECTRICALPlease ensure power supply (V-Ph-Hz) to the unit is as per unit nameplate requirements.

Caution: Operation of the unit on improper power supply will result in damage to the unit.

Warning: Before installation or servicing, always TURN OFF all power to the unit. There may be more than one discon-nect switch. Ensure all of them are turned off.

GROUND & POWER WIRESConnect power wires as per wiring diagram. Connect ground wire to the ground lug inside the control box.

MAINTENANCECOILCoil may be cleaned by removing and brushing between fins with a stiff wire brush. Brushing should be followed bycleaning with vacuum cleaner. The coil may also be cleaned by using a high pressure air, if compressed air source isavailable. It should be pointed out that if air filters are used and periodically cleaned, the coils will not be clogged upprematurely.

DRAIN PIPEDrain pipe should be checked before summer operation of unit. If it is clogged, steps should be taken to clear the debrisso that condensate will flow out easily. A standard pipe cleaner for 1/2" ID pipe may be used. Periodic checks of the drainpipe should be taken during summer operation, as there is a possibility of it becoming clogged with dirt.

FILTER CLEANINGRemove access panel, slide filter out of filter rack, and clean as follows:Tap filter on solid surface to dislodge heavy particles. Wash under stream of hot water. If filter has been put to exceptionalservice, a mild solution of Sal-Soda, Tri-Sodium Phosphate or any other commercial solvent can be used. Set filter onend with slots in frame down, which allows it to drain. Filters should dry thoroughly before reuse.

REPLACEMENT PARTSWhen writing for replacement parts, refer to model number and serial number on the nameplate of the unit.

11

VALVE PACKAGESVALVE PACKAGE 3-D (COOL ONLY)

VALVE PACKAGE 4-D (COOL & HEAT)

1

2

3

Two gate shut off valves

One balancing valve

One 3-way motor valve

1

2

3

Four gate shut off valves

Two balancing valves

Two 3-way motor valves

F C UIN

OUT

F C U

OUT

IN

IN

OUT

PERCENTAGE OF SPARE PARTSONE YEAR SUPPLY TWO YEAR SUPPLY

100 UNITS 1000 UNITS 100 UNITS 1000 UNITSITEM

EVAPORATOR BLOWER MOTOR 2 1 4 2

BLOWER WHEEL 2 1 4 2

THERMOSTAT 2 1 4 2

FILTER 4 2 6 4

RECOMMENDED SPARE PARTS

NOTE : When ordering spare parts, please quote the complete model number on the unit nameplate.

12

PARTS LISTMODEL NUMBER

VWX03 VWX04 VWX06 VWX08 VWX10

BLOWER WHEEL 800-707-57 & 58 800-707-57 & 58 800-707-57 & 58 800-707-57 & 58 800-707-57 & 58

BLOWER MOTOR 800-827-17 800-827-08 800-827-11 800-827-08 800-827-11

RETURN AIR FILTER 800-248-20 800-248-22 800-248-23 800-248-25 800-248-26

VALVE PACKAGE (3D), COOL ONLY 700-361-62 700-361-62 700-361-62 700-361-62 700-361-62

THERMOSTAT 800-646-21 800-646-21 800-646-21 800-646-21 800-646-21

DESCRIPTION

NOTE: For 4D type valve package, order 2 x 3D valve packages.

13

PL-AP-VWX-08-2M-E