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Transcript of Wcfx r134a - hermatic screw chiller
Products that perform...By people who care
WCFX-R134aWater Cooled Hermetic Screw Chiller
Cooling Capacity
198-1788kW
50Hz R 134a
● Vertical hermetic screw compressor
● Flooded evaporator
● Special economic cycle
● Muti compressors with one refrigerant circuit
● Unique oil return system
● High efficiency oil ballance system
● Throttle equipment composed by modulate、globe valve and liquid level sensor
● Advanced microcomputer control
● Option with environment-friendly refrigerant
Features
1
WC F X S 27 D N
Water cooled chiller
Flooded evaporator
Hermetic screw compressor
Non-standard chiller
S Single compressor
T Dual compressors
Blank Triple compressors
WCFX-R134a
INTRODUCTION
The Dunham-Bush WCFX Water-Cooled Rotary Screw Water Chillers
are available from 57 to 508 Rtons. Their performance has been certified by
the Air Conditioning and Refrigeration Institute (ARI). These units are
STANDARD FEATURES
Size Range
• 23 Models from 57 to 508 Rtons at ARI standard conditions with
certified performance
• Multiple compressor units provide redundancy, and favorable partload
efficiency
Compressor
• Quiet, reliable MSC Rotary Screw Compressors
• Multiple rotary screw compressor design for fail-safe reliability and
redundancy
• Hermetic Design eliminates problematic shaft seals, inspections,
expensive teardowns, time consuming alignments, etc.
• Consistent unloading with dependable slide valve mechanism
Evaporator/Condenser
• Cleanable and Removable Integral Fin Copper Tubes for easy
serviceability
• One, Two or Three Water Passes Available for a wide variety of
applications
supplied with rotary screw compressors that are backed by 48 years of
experience.
The side by side evaporator/condenser arrangement makes a split
design optional for ease of movement throughany standard commercial
doorway.
All units are factory run tested before shipment.
• Removable Water Heads for service
• Victaulic Groove Water Connections for quick installation and/or
service
• Full Pump Down Capacity in Condenser, therefore, pump out unit not
required
Microcomputer/Electrical
• Proactive Microcomputer Controller adapts to abnormal operating
conditions
• Tolerant and accommodating of extreme conditions at start-up
• Capable of controlling multiple chillers, cooling towers, pumps, etc.
• Circuit Breaker on each multiple compressor unit
• Unit Mounted Contactor and Time Delay for reduced Inrush Start
• Current and Voltage transformers
• Under Voltage Phase Failure Relay
• Indicator lights for Compressor Overloads, High Motor Temperature,
Micro Alarm, Control Power, Compressor Control Circuit
NOMENCLATURE
Compressor Code
R
R134a
Dual-operation
2
Economizer Cycle
Liquid refrigerant passes through the first expansion device and into
the flash economizer where flash gas and liquid refrigerant are separated.
The gaseous refrigerant is then drawn out of the flash economizer and into
the vapor injection port of the compressor. The remaining liquid
refrigerant then passes through a second expansion device which reduces
refrigerant pressure to evaporator levels where it is then distributed evenly
into the evaporator.
By removing the flash gas from the flash economizer at an
intermediate pressure, the enthalpy of the refrigerant flowing into the
evaporator is reduced which increases the refrigeration effect and
improves the efficiency of the refrigeration cycle about 16%
Shell and Tube Flooded Coolers
Flooded Coolers operate considerably different than Direct Expan-
sion Coolers. They have the refrigerant in the shell side with the fluid to
be cooled in the tubes. The liquid level of refrigerant in the shell covers
the tubes with refrigerant. This direct contact enables the cooler to oper-
ate more efficiently than a direct expansion cooler by having a closer
total temperature difference (TTD). Flooded Coolers employ the most
advanced vessel technology available today. Special internal and extern-
al enhanced tubing provides excellent unit efficiency. These coolers are
designed and constructed to meet the requirements of the JB4750-2003.
and are stamped accordingly. The tubing is roll expanded into the tube
sheets and the heads are removable and interchangeable from end-to-end
for ease of tube maintenance. Vent and drain plugs are provided in each
head. Two-pass coolers are supplied standard with one and three-pass
optional.
Shell and Tube Condenser
The condenser is a cleanable "shell and tube" type with high efficiency
external and internal enhanced copper tubes, mechanically expanded into
heavy fixed steel tube sheets. The condenser is sized for full refrigerant
pump down capacity and the shell side is equipped with dual refrigerant
relief devices. Vent and drain fittings are provided in each head and the
heads are removable for tube cleaning and serviceability.
Compressor
The Dunham-Bush rotary screw compressor is a positive displace-
ment helical-axial design for use with high pressure refrigerants.
• The compressor consists of two intermeshing helical grooved rotors, a
drive rotor and a driven rotor, in a stationary housing with suction and
discharge gas ports.
• Uniform gas flow, even torque and positive displacement, all provided
by pure rotary motion contributes to vibration-free operation over a wide
range of operating conditions. Intake and discharge cycles overlap,effect-
ively producing a smooth, continuous flow of gas.
• No oil pump is required for lubrication or sealing purposes. Oil is dist-
ributed throughout the compressor by the pressure differential between
the suction and the discharge cavities.
Second expansionCondensation
Evaporation without
Enthalpy BTU/LB)
Pre
ssu
re(P
SIA
)
Com
pres
s pr
oces
s
First expansion
economizer
Evaporation with economizer
Discharge Port
Oil Deflection
Plate
Hermetic Motor
Housing
Vapor Injection
Port
Slide Valve
Compressor
Shell
Oil Seperator
Motor
Suction Filter
Suction Port
Rotors
Oil Level
Glass
3
Simplified Capacity Control
The slide valve mechanism for capacity modulation and part-load
operation is an outstanding feature.
• The moving parts are simple, rugged and trouble-free. The slide mech-
anism is hydraulically actuated.
• Package capacity reduction can be down to as low as 25% without
HGBP by progressive movement of slide valves away from their stops.
• Capacity reduction is programmed by an exclusive electronically initi-
ated, hydraulically actuated control arrangement.
Positive Displacement Direct Connected
The compressor is directly connected to the motor without any comp-
licated gear systems to speed up the compressor and thus detract from
the overall unit reliability.
Oil Separator
Each compressor is provided with an integral oil separator located
adjacent to the discharge gas port.
• The separator is a multi-layered mesh element which effectively sepa-
rates oil from the gas stream.
• The oil drains into the sump and the discharge gas passes around the
deflection plate. An oil drain valve is located near the bottom of the oil
sump.
Main Bearings
Each rotor is fitted with a set of anti-friction tapered roller bearings.
They carry both radial and thrust loads.
Rotors
The latest asymmetrical rotor profiles of patented Dunham-Bush
design assure operation at highest efficiencies. Rotors are precision
machined from AISI 1141 bar stock and case hardened.
Castings
All housings are manufactured of high grade, low porosity,cast iron.
Solid State Motor Protection. The motor winding protection module used
in conjunction with sensors embedded in the compressor motor windings
is designed to prevent the motor from operating at unsafe operating tem-
peratures. The overloads for the motor are also solid state.
Display Information
The alphanumeric liquid crystal display utilizes easy-to-understand
menu-driven software.Inexperienced operators can quickly work through
these menus to obtain the information they require or to modify control
parameters. More experienced operators can bypass the menu systems, if
desired, and move directly to their requested control function. Easily
accessible measurements include:
• Leaving chilled water temperature
• Evaporator pressure
• Condenser pressure
• System voltage
• Number of compressor starts
• Compressor contactor status
• Water temperature reset value
• Water flow switch status
• External start/stop command status
Advanced Microcomputer Control is a standard feature on all Dunham-
Bush Rotary Screw Water Cooled Chillers monitoring analog and digital
inputs to achieve precise control of the major operational and protective
functions of the unit.
Programmable Logic Controller (PLC) allows finger-tip user inter-
action. Its simple-to-use push button keyboard and menu-driven software
provide access to operating conditions, control setpoints and alarm hist-
ory clearly displayed on a prominent multi-line alphanumeric display.
An easy-to-install, inexpensive modem option allows remote reading of
operating parameter updates. The Dunham-Bush microcomputer insures
4
●
●
●
●
●
●
●
●
●
●
●
●
●
PLC RS485
MODBUS RTU RS485
RS485
RS485
RS485
TCP/IP
4
Capacity Control
Leaving chilled water temperature control is accomplished by enter-
ing the water temperature setpoint and placing the microcomputer in
automatic control. The unit will monitor all control functions and move
the slide valve to the required operating position. The compressor ramp
(loading) cycle is programmable and may be set for specific building
requirements. Remote adjustment of the leaving chilled water setpoint is
accomplished through either direct connection of other Dunham-Bush
control packages to the microcomputer through either the RS485 long
distance differential communication port, via terminal or modem connec-
ted to the RS232 communication port, or from an external building auto-
mation system supplying a simple 0 to 5 VDC signal. Optional remote
reset of compressor current limit may be accomplished in a similar fash-
ion.
System Control
The unit may be started or stopped manually or through the use of an
external signal from a Building Automation System.
System Protection
The following system controls will automatically act to insure system
protection:
• Low suction pressure
• High discharge pressure
• High motor temperature/overcurrent
• Freeze protection
• High motor temperature
• Low differential pressure
• Low oil level
• Compressor run error
• Power loss
• Chilled water flow loss
• Sensor error
• Compressor overcurrent
• Anti-recycle
The microcomputer will retain the latest thirty alarm conditions complete
with time of failure in an alarm history. This tool will aid service
technicians in trouble shooting tasks enabling downtime and nuisance
trip-outs to be minimized.
Remote Monitoring
The microcomputer is complete with an RS232 communications port
and all hardware and software necessary to be remotely monitored and
controlled from a simple terminal and optional phone modem. This valu-
able enhancement to the refrigeration system allows the ultimate in
serviceability. The microcomputer as standard is additionally equipped
with history files which may be used to take logs which may be retrieved
via the phone modem periodically. Now owners of multiple buildings
have a simple and inexpensive method of investigating potential
problems quickly and in a highly cost effective manner. Dunham-Bush
has open Protocol on its microcomputer to allow direct interface with
Building Management Systems.
5
+
+
Public Telephone
Network
C e n t r a l i z e d
C o n t r o l R o o m
DUNHAM-BUSH Water Cooled Chiller
Printer
Printer
PC
Local Controller 1# Local Controller2# Local Controller 32# or 254#
DUNHAM-BUSH
Software
DUNHAM-BUSH
Software or other
Building Management
System
Centrial Computer or
Group Control Box
MODEM
MODEM
RS-485/MODBUS Protocol or Ethernet/TCP-IP Protocol
telephone
line
tele
phpone
line
The group control system can be composed by 32 chillers RS-485/MODBUS Protocol or 254 chillers Ethernet/TCP-IP Protocol
1# Chiller 2# Chiller 32# 254# Chiller
Network Topology Map for Multi Chillers Group Control and Remote Control
1#1#1#1#1#1#1#1#1#1#1#1#1#1#1#1#1#1#1#1#1#1#1#1#1#1#1#1#1#1#1#1#1#1#1#1#1#1#1#1#1#1#1# Chiller 2# Chiller 32# 254# Chiller
Ethernet Line
6
MO
DE
LW
CF
X kW RT
10
4k
cal/
h
10
SR
20
1
57
17
.3 1
38
.8
69
25
2
35
25 4 41
24 4
31
20
10
25
18
50
13
40
14
80
70
12
SR
25
1
71
21
.6 1
47
.9
88
31
0
43
28 4 51
33 4
31
20
10
65
18
50
14
80
16
30
85
15
SR
30
0
85
25
.8 1
56
.4
11
0
36
0
52
31 4 61
35 4
31
20
11
00
19
90
18
00
19
60
11
0
18
SR
36
6
10
4
31
.5 1
68
.8
13
0
43
0
63
33 5 75
34 5
32
00
11
50
20
30
21
50
23
50
11
5
20
SR
43
2
12
3
37
.1 1
81
.8
15
2
46
0
74
38 5 88
55 5
37
70
11
75
23
20
28
00
32
00
13
0
23
SR
48
4
13
8
41
.6 1
90
.2
16
5
52
0
83
46 5 99
50 5
37
70
11
75
22
90
28
90
32
50
14
5
24
SR
53
2
15
1
45
.71
1
10
1.4
18
6
56
0
91
46 5
10
9
50 5
37
70
11
75
23
20
29
30
33
20
16
0
27
SR
59
0
16
8
50
.7 1
11
0.3
19
7
58
0
10
1
56 6
12
0
63 6
37
90
12
50
23
40
31
50
35
70
18
0
30
SR
65
0
18
5
55
.9 1
12
2.3
22
4
65
5
11
2
55 6
13
3
68 6
37
90
12
50
23
40
33
00
37
00
20
0
33
TR
68
6
19
5
59
.0 2
12
6.2
24
6
360/
430
11
8
56 6
14
0
63 6
37
90
12
20
21
80
34
40
38
50
21
0
36
TR
75
5
21
5
64
.9 2
13
8.6
27
2
43
0
13
0
54 6
15
4
60 6
36
80
12
20
21
80
35
60
39
60
23
0
41
TR
85
9
24
4
73
.9 2
15
7.8
30
2
430/
520
14
8
60 8
17
5
70 6
36
80
12
80
24
00
44
20
49
20
26
5
46
TR
96
5
27
4
83
.0 2
17
8.2
32
8
52
0
16
6
55 8
19
7
66 8
44
00
13
30
24
00
47
80
53
00
29
0
50
TR
10
73
30
5
92
.3 2
19
8.6
36
6
520/
580
18
5
54 8
21
9
73 8
44
00
13
70
24
50
50
10
56
00
32
5
54
TR
11
63
33
1
10
0.0
2
21
5.1
40
0
58
0
20
0
54 8
23
7
75 8
44
00
14
10
25
55
53
30
59
10
36
0
57
TR
12
68
36
1
10
9.0
2
23
4.6
43
4
580/
655
21
8
56 8
25
8
70 8
44
30
13
70
24
55
56
20
63
00
38
0
60
TR
13
44
38
2
11
5.6
2
24
8.8
46
8
65
5
23
1
64 8
27
4
75 8
44
30
13
70
24
55
57
60
64
40
40
0
64
R
13
92
39
6
11
9.7
3
26
4.2
50
2
460/
560
23
9
66 8
28
5
74 8
47
00
14
00
24
90
66
30
72
30
42
5
69
R
14
97
42
6
12
8.7
3
28
4.6
52
4
460/
560
25
7
73 8
30
6
74 8
46
00
14
65
25
60
70
20
76
20
46
0
73
R
16
05
45
6
13
8.0
3
30
4.2
55
3
56
0
27
6
73
10
32
8
73
10
47
80
15
00
26
00
72
60
78
80
49
0
75
R
16
60
47
2
14
2.7
3
31
5.2
57
8
560/
655
28
5
67
10
34
0
70
10
47
80
15
00
26
00
74
50
80
70
50
0
77
R
17
24
49
0
14
8.2
3
32
7.7
59
0
560/
655
29
6
70
10
35
3
72
10
47
80
15
00
26
00
77
30
83
50
52
0
81
R
17
88
50
8
15
3.7
3
34
0.4
60
2
65
5
30
7
72
10
36
6
71
10
47
00
15
60
26
00
80
20
86
40
54
0
25
-10
0%
12
.5-1
00
%8
.5-1
00
%
38
0V
/3P
/50
Hz
Co
mp
ress
or
Ev
apo
rato
r
1.0
5
Co
nd
ense
r
1.0
Dim
ensi
on
WC
FX
-R1
34
a T
EC
HN
IC
AL
DA
TA
Capacity
Cap
acit
y R
agu
lati
on
Ran
ge
Po
wer
Qu
anti
ty
Inp
ut
Po
wer
(
kW
)
Rat
ed C
urr
ent
(A
)
Sta
rtin
g C
urre
nt (
A)
Flo
w
(m
3/h
)
Pre
ssu
re D
rop
(k
Pa)
Des
ign
Pre
ssu
re
(MP
a)
Flo
w
(m
3/h
)
Pre
ssu
re D
rop
(
kP
a)
Des
ign
Pre
ssu
re
(MP
a)
Len
gth
(m
m)
Wid
th
(m
m)
Hei
gh
t
(
mm
)
Sh
op
pin
g W
eig
ht
(
kg
)
Ru
nn
ing
Wei
gh
t
(k
g)
Ref
rig
eran
t W
eig
h
(kg
)
No
te1
the
dat
a in
th
e ta
ble
is
bas
ed o
n t
he
foll
ow
ing
op
erat
ion
co
nd
itio
nIn
let/
Ou
tlet
co
ole
d w
ater
tem
per
atu
re1
2/7
Inle
t/O
utl
et c
oo
lin
g w
ater
tem
per
atu
re 3
0/3
5F
ou
lin
g f
acto
r o
f co
nd
ense
r 0
.04
4m
2·
/kW
,
fou
lin
g f
acto
r o
f ev
apo
rato
r 0
.01
8m
2·
/kW
2th
e m
od
els
in a
bo
ve
tab
le i
s st
and
ard
pro
du
cts,
we
can
als
o d
esig
n h
igh
eff
icie
nt
or
En
vir
on
men
t-fr
ien
dly
ch
ille
rs a
cco
rdin
g t
o t
he
req
uir
emen
t o
f cu
sto
mer
3N
on
-sta
nd
ard
ch
ille
rs c
an b
e d
esig
ned
acc
rod
ing
to
dff
eren
t re
qu
irem
ents
.
7
MO
DE
LW
CF
X kW RT
10
4k
cal/
h
10S
RD
19
8
56
17
.0
13
2
37
11
.3 1
38
.7
37
.9
69
25
2
37
29 4 41
23 4
31
20
10
25
18
50
13
40
14
80
70
12S
RD
24
7
70
21
.3
16
4
47
14
.1 1
47
.8
46
.8
88
31
0
46
33 4 51
32 4
31
20
10
65
18
50
14
80
16
30
85
15S
RD
29
6
84
25
.4
19
7
56
16
.9 1
56
.2
55
.1
11
0
36
0
55
36 4 60
34 4
31
20
11
00
19
90
18
00
19
60
11
0
18S
RD
36
1
10
3
31
.0
24
0
68
20
.6 1
68
.6
67
.2
13
0
43
0
67
39 5 74
33 5
32
00
11
50
20
30
21
50
23
50
11
5
20S
RD
42
6
12
1
36
.6
28
3
80
24
.3 1
81
.6
79
.9
15
2
46
0
80
44 5 87
54 5
37
70
11
75
23
20
28
00
32
00
13
0
23S
RD
47
7
13
6
41
.0
31
7
90
27
.3 1
89
.9
88
.1
16
5
52
0
89
54 5 97
49 5
37
70
11
75
22
90
28
90
32
50
14
5
24S
RD
52
4
14
9
45
.1
34
8
99
30
.0 1
10
1.1
99
.1
18
6
56
0
98
54 5
10
8
49 5
37
70
11
75
23
20
29
30
33
20
16
0
27S
RD
58
1
16
5
50
.0
38
6
11
0
33
.2 1
11
0.0
10
7.8
19
7
58
0
10
9
65 6
11
9
61 6
37
90
12
50
23
40
31
50
35
70
18
0
30S
RD
64
0
18
2
55
.1
42
6
12
1
36
.6 1
12
1.9
11
9.5
22
5
65
5
12
0
64 6
13
1
66 6
37
90
12
50
23
40
33
00
37
00
20
0
33T
RD
67
6
19
2
58
.1
44
9
12
8
38
.6 2
12
5.8
12
3.3
24
6
360/
430
12
6
65 6
13
8
61 6
37
90
12
20
21
80
34
40
38
50
21
0
36T
RD
74
4
211
63
.9
49
5
14
1
42
.5 2
13
8.2
13
5.4
27
2
43
0
13
9
63 6
15
2
58 6
36
80
12
20
21
80
35
60
39
60
23
0
41T
RD
84
6
24
1
72
.8
56
3
16
0
48
.4 2
15
7.3
15
4.2
30
2
430/
520
15
8
70
8
17
3
68
6
36
80
12
80
24
00
44
20
49
20
26
5
46T
RD
95
1
27
0
81
.7
63
2
18
0
54
.4 2
17
7.7
17
4.1
32
8
52
0
17
8
64 8
19
4
64 8
44
00
13
30
24
00
47
80
53
00
29
0
50T
RD
10
57
30
1
90
.9
70
3
20
0
60
.4 2
19
8.0
19
4.0
36
6
520/
580
19
8
63 8
21
6
71 8
44
00
13
70
24
50
50
10
56
00
32
5
54T
RD
11
46
32
6
98
.5
76
2
21
7
65
.5 2
21
4.5
21
0.2
40
0
58
0
21
4
63 8
23
4
73 8
44
00
14
10
25
55
53
30
59
10
36
0
57T
RD
12
49
35
5
10
7.4
83
1
23
6
71
.4 2
23
3.9
22
9.2
43
4
580/
655
23
3
65 8
25
5
68 8
44
30
13
70
24
55
56
20
63
00
38
0
60T
RD
13
24
37
6
11
3.8
88
0
25
0
75
.7 2
24
8.1
24
3.1
46
8
65
5
24
7
75 8
27
0
73 8
44
30
13
70
24
55
57
60
64
40
40
0
64
RD
13
71
39
0
11
7.9
91
2
25
9
78
.4 3
26
3.4
25
8.1
50
2
460/
560
25
6
77 8
28
1
72 8
47
00
14
00
24
90
66
30
72
30
42
5
69
RD
14
75
41
9
12
6.8
98
1
27
9
84
.3 3
28
3.7
27
8.1
52
4
460/
560
27
6
85 8
30
2
72 8
46
00
14
65
25
60
70
20
76
20
46
0
73
RD
15
81
45
0
13
5.9
10
51
29
9
90
.4 3
30
3.3
29
7.2
55
3
56
0
29
6
85
10
32
4
71
10
47
80
15
00
26
00
72
60
78
80
49
0
75
RD
16
35
46
5
14
0.6
10
87
30
9
93
.5 3
31
4.3
30
8.0
57
8
560/
655
30
6
78
10
33
5
68
10
47
80
15
00
26
00
74
50
80
70
50
0
77
RD
16
98
48
3
14
6.0
11
29
32
1
97
.1 3
32
6.7
32
0.2
59
0
560/
655
31
7
82
10
34
8
70
10
47
80
15
00
26
00
77
30
83
50
52
0
81
RD
17
61
50
1
15
1.4
11
71
33
3
10
0.7
3
33
9.4
33
2.6
60
2
65
5
32
9
84
10
36
1
69
10
47
00
15
60
26
00
80
20
86
40
54
0
kW RT
10
4k
cal/
h
25
-10
0%
12
.5-1
00
%8
.5-1
00
%
38
0V
/3P
/50
Hz
Co
mp
ress
or
Ev
apo
rato
r
1.0
5
Co
nd
ense
r
1.0
Dim
ensi
on
Dat
a
WC
FX
-R1
34
a D
ua
l O
pe
rati
on
Te
ch
nic
al D
ata
A/C
Cap
acit
y
Ice S
tora
ge
Cap
acit
y
Cap
acit
y m
od
ula
tin
g r
ang
e
Po
wer
Com
pre
ssor
Model
(Q
TY
)
A/C
In
pu
t P
ow
er
(
kW
)
Rat
ed C
urr
ent
(A
)
Sta
rtin
g C
urr
ent
(A
)
Flo
w
(
m3/h
)
Pre
ssu
re D
rop
(kP
a)
Des
ign
Dro
p
(
MP
a)
Pip
e D
iam
eter
(
in)
Flo
w
(
m3/h
)
Pre
ssu
re D
rop
(kP
a)
Des
ign
Pre
ssu
re
(M
Pa)
Pip
e D
iam
eter
(i
n)
Len
gth
(
mm
)
Wid
th
(
mm
)
Hei
gh
t
(m
m)
Sh
op
pin
g W
eig
ht
(kg
)
Ru
nn
ing
Wei
gh
t
(kg
)
Ref
rig
eran
t W
eig
ht
(k
g)
Ice
Sto
rage
Inpu
t Pow
er(k
W)
No
te:
1、
the
dat
a in
ab
ov
e ta
ble
is
bas
ed o
n t
he
foll
ow
ing
op
erat
ion
co
nd
itio
n:
A/C
co
nd
itio
n:
Inle
t/O
utl
et 2
5%
gly
col
solu
tio
n t
emp
erat
ure
12
/7,
Inle
t/O
utl
et c
oo
lin
g w
ater
tem
per
atu
re 3
0/3
5,
Ice
sto
rag
e co
nd
itio
n:
25
% g
lyco
l so
luti
on
ou
tlet
tem
per
atu
re:
-5.6
Inle
t co
oli
ng
wat
er t
emp
erat
ure
30
Fo
uli
ng
fac
tor
of
con
den
ser
0.0
44
m2·
/kW
, fo
uli
ng
fac
tor
of
evap
ora
tor
0.0
18
m2·
/kW。
2、
the
mo
del
s in
ab
ov
e ta
ble
is
stan
dar
d p
rod
uct
s, w
e ca
n a
lso
des
ign
hig
h e
ffic
ien
t o
r E
nv
iro
nm
ent-
frie
nd
ly c
hil
lers
acc
ord
ing
to
th
e re
qu
irem
ent
of
cust
om
er
3、
No
n-s
tan
dar
d c
hil
lers
can
be
des
ign
ed a
ccro
din
g t
o d
ffer
ent
req
uir
emen
ts.
8
26 28 30 32
5
6
7
8
9
10
0.962
0.999
1.030
1.065
1.110
1.129
0.901
0.907
0.910
0.912
0.921
0.923
0.948
0.983
1.015
1.050
1.085
1.116
0.946
0.954
0.954
0.961
0.964
0.968
0.938
0.969
1.000
1.031
1.063
1.094
0.993
0.996
1.000
1.000
1.011
1.014
0.926
0.958
0.989
1.019
1.051
1.083
1.039
1.047
1.051
1.054
1.061
1.063
Correction Factors of Cooling Capacity and Power at Different Situation
Inlet/Outlet water temperature Difference between inlet and outlet temperature is 5
Capacity Input Power Capacity Input Power Capacity Input Power Capacity Input Power
Outlet
temperature
of
evaportor
Temperature
difference
between
inlet and
outlet
is 5
Note:
the data in the table is based on the following operation condition:Inlet/Outlet cooled water temperature 12/7 ,Inlet/Outlet cooling water
temperature 30/35 ,the data of other conditions can be evaluated by the correction factors in above table
9
MO
DE
L
T
ota
l L
eng
th
A
B
C
D
E
F
G
H
L
R
S
WC
FX
10
SR
WC
FX
12
SR
WC
FX
15
SR
WC
FX
18
SR
WC
FX
20
SR
WC
FX
23
SR
WC
FX
24
SR
WC
FX
27
SR
WC
FX
30
SR
31
20
31
20
31
20
32
00
37
70
37
70
37
70
37
90
37
90
10
25
10
65
11
00
11
50
11
75
11
75
11
75
12
50
12
50
34
8
34
8
37
4
38
7
41
7
38
7
41
7
41
2
41
2
29
4
32
1
32
1
33
6
36
6
33
6
36
6
36
1
36
1
52
4
54
0
54
1
58
0
58
0
58
0
58
0
63
0
63
0
10
2
10
2
13
0
14
3
14
3
14
3
14
3
14
3
14
3
17
8
20
0
20
0
21
6
21
6
21
6
21
6
24
1
24
1
86
10
0
10
0
10
2
10
2
10
2
10
2
11
5
11
5
18
50
18
50
19
90
20
30
23
20
22
90
23
20
23
40
23
40
26
93
26
93
26
93
26
93
32
77
32
77
32
77
32
77
32
77
4″
4″
4″
5″
5″
5″
5″
6″
6″
4″
4″
4″
5″
5″
5″
5″
6″
6″
Rec
omm
enda
tion
Spac
e
WC
FX
10S
R-3
0S
R
'H'
'A'
'D'
'C'
'G'
'B'
15
2.5
'E'
'F'
76
04
60
'L'
32
50
52
46
0
Dim
en
sio
n D
ata
No
te
1
Wat
er P
ipin
g T
o B
e S
up
po
rted
To
Min
imiz
e L
oad
On
Un
it
2E
xp
ect
wat
er p
ipe
dim
ensi
on
is
in i
nch
,th
e o
ther
s ar
e in
min
imet
er
3V
ent
and
dra
in c
on
nec
tio
ns
pro
vid
ed o
n e
vap
oat
or
and
co
nd
ense
r
4S
uff
icie
nt
roo
m m
ust
be
allo
wed
fo
r ev
apo
rato
r an
d c
on
den
ser
wat
er c
on
nec
tio
ns
5W
hen
lo
ok
ing
at
(2)
pas
s ev
apo
rato
r h
ead
co
nn
ecti
on
s, w
ater
ou
tlet
is
left
co
nn
ec-
t
ion
, w
ater
in
let
is r
igh
t co
nn
ecti
on
as
sup
pli
ed b
y f
acto
ry.
Cu
sto
mer
may
rev
erse
t
his
arr
ang
emen
t, b
ut
leav
ing
wat
er t
emp
erat
ure
sen
sor
mu
st b
e re
loca
ted
to
wat
er
o
utl
et. A
ll w
ater
no
zzle
s ar
e IP
S,
wit
h v
icta
uli
c g
roo
ves
.
6D
WG
sh
ow
s 2
pas
s ri
gh
t h
and
arr
ang
men
t o
n b
oth
Co
n.a
nd
Ev
ap
Conden
sor
Outl
et S
Conden
sor
Inle
t S
Evap
ora
tor
Outl
et
Evap
ora
tor
Inle
t
Rec
omm
enda
tion
Spac
e
Rec
omm
endi
on S
pace
Rec
omm
endi
onSp
ace
Tota
l L
ength
Ele
ctri
cal
wir
ing
loca
tio
n
10
MO
DE
L
T
ota
l L
eng
th
WC
FX
33
TR
WC
FX
36
TR
WC
FX
41
TR
WC
FX
46
TR
WC
FX
50
TR
WC
FX
54
TR
WC
FX
57
TR
WC
FX
60
TR
37
90
36
80
36
90
44
00
44
00
44
00
44
30
44
30
12
20
12
20
12
80
13
30
13
70
14
10
13
70
13
70
41
2
41
2
43
7
43
7
46
3
53
8
46
3
46
3
36
1
38
7
38
7
41
2
41
2
41
2
41
2
41
2
63
0
60
5
63
2
65
7
68
2
70
7
68
2
68
2
14
3
14
3
17
5
17
5
17
5
18
8
17
5
17
5
24
1
26
7
26
7
29
9
29
9
29
9
29
9
29
9
11
5
14
3
14
3
15
5
15
5
15
5
15
5
15
5
21
80
21
80
24
00
24
00
24
50
25
55
24
55
24
55
32
77
32
77
32
77
32
77
32
77
32
77
38
36
38
36
6″
6″
8″
8″
8″
8″
8″
8″
6″
6″
6″
8″
8″
8″
8″
8″
A
B
C
D
E
F
G
H
L
R
S
WC
FX
33T
R-6
0T
R
'A'
'L'
'D'
'E'
'F'
'C'
'G'
'B'
'H'
38
00
46
08
20
15
2.5
46
0
52
Dim
en
sio
na
l D
ata
No
te
1W
ater
Pip
ing
To
Be
Su
pp
ort
ed T
o M
inim
ize
Lo
ad O
n U
nit
.
2E
xp
ect
wat
er p
ipe
dim
ensi
on
is
in i
nch
,th
e o
ther
s ar
e in
min
imet
er.
3V
ent
and
dra
in c
on
nec
tio
ns
pro
vid
ed o
n e
vap
oat
or
and
co
nd
ense
r.
4S
uff
icie
nt
roo
m m
ust
be
allo
wed
fo
r ev
apo
rato
r an
d c
on
den
ser
wat
er c
on
nec
tio
ns
5W
hen
lo
ok
ing
at
(2)
pas
s ev
apo
rato
r h
ead
co
nn
ecti
on
s, w
ater
ou
tlet
is
left
co
nn
ecti
on
,
w
ater
in
let
is r
igh
t co
nn
ecti
on
as
sup
pli
ed b
y f
acto
ry.
Cu
sto
mer
may
rev
erse
th
is
a
rran
gem
ent,
bu
t le
avin
g w
ater
tem
per
atu
re s
enso
r m
ust
be
relo
cate
d t
o w
ater
ou
tlet
.
All
wat
er n
ozz
les
are
IPS
, w
ith
vic
tau
lic
gro
ov
es.
6D
WG
sh
ow
s 2
pas
s ri
gh
t h
and
arr
ang
men
t o
n b
oth
Co
n.a
nd
Ev
ap.
Con.O
utl
et S
Rec
om
men
ded
Spac
e
Rec
om
men
ded
Spac
e
Rec
om
men
ded
Len
gth
Tota
l L
ength
Con. O
utl
et S
Eva.
Outl
et
Eva.
Inle
t
Rec
om
men
ded
Spac
e
Ele
ctri
cal
wir
ing
loca
tio
n
11
MO
DE
L
T
ota
l L
eng
th
WC
FX
64
R
WC
FX
69
R
WC
FX
73
R
WC
FX
75
R
WC
FX
77
R
WC
FX
81
R
47
00
46
00
47
80
47
80
47
80
47
00
14
00
14
65
15
00
15
00
15
00
15
60
51
3
53
8
56
4
56
4
56
4
56
4
46
2
48
7
48
7
48
7
48
7
51
3
68
2
73
3
75
9
75
9
75
9
78
4
17
5
18
8
20
6
20
6
20
6
20
6
29
9
32
4
32
4
32
4
32
4
35
6
15
5
17
5
20
2
20
2
20
2
20
2
24
90
25
60
26
00
26
00
26
00
26
00
8″
8″
10″
10″
10″
10″
8″
8″
10″
10″
10″
10″
A
B
C
D
E
F
G
H
R
S
WC
FX
64R
-81R
'A'
'D'
'E'
'F'
'C'
'G'
'B'
'H'
41
15
38
00
46
01
10
0
15
2.5
46
0
52
Dim
en
sio
na
l D
ata
No
te
1W
ater
Pip
ing
To
Be
Su
pp
ort
ed T
o M
inim
ize
Lo
ad O
n U
nit
.
2E
xp
ect
wat
er p
ipe
dim
ensi
on
is
in i
nch
,th
e o
ther
s ar
e in
min
imet
er.
3V
ent
and
dra
in c
on
nec
tio
ns
pro
vid
ed o
n e
vap
oat
or
and
co
nd
ense
r.
4S
uff
icie
nt
roo
m m
ust
be
allo
wed
fo
r ev
apo
rato
r an
d c
on
den
ser
wat
er c
on
nec
tio
ns
5W
hen
lo
ok
ing
at
(2)
pas
s ev
apo
rato
r h
ead
co
nn
ecti
on
s, w
ater
ou
tlet
is
left
co
nn
ecti
on
,
w
ater
in
let
is r
igh
t co
nn
ecti
on
as
sup
pli
ed b
y f
acto
ry.
Cu
sto
mer
may
rev
erse
th
is
a
rran
gem
ent,
bu
t le
avin
g w
ater
tem
per
atu
re s
enso
r m
ust
be
relo
cate
d t
o w
ater
ou
tlet
.
All
wat
er n
ozz
les
are
IPS
, w
ith
vic
tau
lic
gro
ov
es.
6D
WG
sh
ow
s 2
pas
s ri
gh
t h
and
arr
ang
men
t o
n b
oth
Co
n.a
nd
Ev
ap.
Con.O
utl
et S
Rec
om
men
ded
Spac
e
Rec
om
men
ded
Spac
e
Rec
om
men
ded
Len
gth
Tota
l L
ength
Con. O
utl
et S
Eva.
Outl
et
Eva.
Inle
t
Rec
om
men
ded
Spac
e
Ele
ctri
cal
wir
ing
loca
tio
n
12
MO
DE
L
A
B
C
D
WC
FX
10
SR
WC
FX
12
SR
WC
FX
15
SR
WC
FX
18
SR
WC
FX
20
SR
WC
FX
23
SR
WC
FX
24
SR
WC
FX
27
SR
WC
FX
30
SR
WC
FX
33
TR
WC
FX
36
TR
WC
FX
41
TR
WC
FX
46
TR
WC
FX
50
TR
WC
FX
54
TR
WC
FX
57
TR
WC
FX
60
TR
WC
FX
64
R
WC
FX
69
R
WC
FX
73
R
WC
FX
75
R
WC
FX
77
R
WC
FX
81
R
26
93
26
93
26
93
26
93
32
77
32
77
32
77
32
77
32
77
32
77
32
77
32
77
32
77
32
77
32
77
38
36
38
36
411
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7
75
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86
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91
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32
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34
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38
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WC
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