-
March 2014 PKGP-SVX03A-EN500002250200
KoolmanAir-Cooled Chiller and Heat pumpR410A
Installation, Operation,and Maintenance
SAFETY WARNINGOnly qualifi ed personnel should install and
service the equipment. The installation, starting up, and servicing
of heating, ventilating, and air-conditioning equipment can be
hazardous and requires specifi c knowledge and training. Improperly
installed, adjusted or altered equipment by an unqualifi ed person
could result in death or serious injury. When working on the
equipment, observe all precautions in the literature and on the
tags, stickers, and labels that are attached to the equipment.
-
2 PKGP-SVX03A-EN
Warnings, Cautions and Notices
Important tips: This manual belongs to the client and shall be
used with the water chiller. After the completion, please put it
back into the technical information kit.
WARNING: Before the installation or maintenance, the power
supply and disconnecting switch of the water chiller shall be kept
in de-energized status to avoid injury or death due to the electric
shock or touch of a moving part. All installation procedures of the
air conditioner must conform to the national, provincial and local
regulations. Before the installation of the air conditioner, please
carefully read this manual. Please install and maintain the water
chiller according to this manual to ensure the air conditioner can
operate properly and reliably. The installation of the air
conditioner must be completed by the professional personnel
appointed by Trane. This manual does not aim to summarize the
differences of all the water chillers or any possible problem in
the installation. If the buyer needs further information or has any
special problem, please contact the local sales offi ces of
Trane.
CAUTION: This machine works on R410 refrigerant. Charging of
non-qualifi ed refrigerant would damage the compressor & will
be very DANGEROUS. So please charge machine with correct
refrigerant. Or call customer care for help about purchasing the
correct refrigerant.
NOTICE:There may be warnings and cautions in this manual if
applicable. In order to ensure personal safety and proper operation
of the water chiller, please adhere to this manual carefully. The
manufacturer will not be liable for the installation or maintenance
performed by the unqualifi ed personnel.
-
3PKGP-SVX03A-EN
Table of Contents
Model Nomenclature ………………………………………………………………………………………5
Unit Outline and Dimension ………………………………………………………………………………7
A. Mini type: CGAK/R-0305R/0306R/0505R/0605R
…………………………………………………7
B. Mini type: CGAK/R-0755R …………………………………………………………………………8
C. Standard type: ………………………………………………………………………………………9
D. Standard type: ……………………………………………………………………………………10
Unit Installation …………………………………………………………………………………………11
Handling ………………………………………………………………………………………………11
Please check the following items before installation
……………………………………………12
Arrival ………………………………………………………………………………………………12
Installation position ………………………………………………………………………………12
Water supply pipe ………………………………………………………………………………12
Pressure water tank system …………………………………………………………………………17
Electric water heater …………………………………………………………………………………18
Electric Specifi cations ……………………………………………………………………………………19
Electric wiring …………………………………………………………………………………………19
Power supply of the water chiller
…………………………………………………………………19
Electric Circuit Diagram …………………………………………………………………………………21
CGAR/K0305R*/0505R*/0605R* circuit diagram
…………………………………………………21
CGAR/K0306* circuit diagram ………………………………………………………………………22
CGAR/K0606R* circuit diagram ……………………………………………………………………23
CGAR/K0755R* circuit diagram ……………………………………………………………………24
CGAR/K1005R*/1205R*/1505R*/2005R* circuit diagram
………………………………………25
Preparations before Starting ……………………………………………………………………………26
Voltage range …………………………………………………………………………………………26
Voltage unbalance ……………………………………………………………………………………26
Water fl ow ………………………………………………………………………………………………26
Water pressure drop …………………………………………………………………………………26
Items to be checked before starting
………………………………………………………………27
Jumper settings ……………………………………………………………………………………30
Dial switch settings …………………………………………………………………………………30
System bit settings ………………………………………………………………………………… 31
Operation parameter settings ………………………………………………………………………31
Running Operation of the Water Chiller
………………………………………………………………32
-
4 PKGP-SVX03A-EN
Table of Contents
Start procedures ……………………………………………………………………………………32
Long-term shutdown ………………………………………………………………………………32
Restart this system after Long-term shutdown
…………………………………………………33
System protection ……………………………………………………………………………………33
Low voltage protection (LP1, LP2) …………………………………………………………33
High voltage protection (HP1, HP2) …………………………………………………………33
Antifreezing function in winter …………………………………………………………………33
Antifreezing of plate type heat exchanger
……………………………………………………33
High voltage protection of plate type heat exchanger
……………………………………33
Overload protection of motor …………………………………………………………………33
Flow protection …………………………………………………………………………………34
Running operation of the water chiller
……………………………………………………………34
Temperature probe (TH1) ………………………………………………………………………34
Controller …………………………………………………………………………………………………35
Material object of wire controller
…………………………………………………………………35
Schematic diagram ……………………………………………………………………………………35
Instructions of control panel and display
…………………………………………………………36
Control panel ………………………………………………………………………………………36
Display panel ………………………………………………………………………………………36
Operation instruction of the panels
……………………………………………………………36
Functional description …………………………………………………………………………………38
Temperature control in the refrigeration status
……………………………………………38
Single compressor control …………………………………………………………………38
Double compressor control ………………………………………………………………38
Temperature control in the heating status
…………………………………………………39
Single compressor control …………………………………………………………………39
Double compressor control ………………………………………………………………39
Compressor protection time-delay function
…………………………………………………39
Electric heating control …………………………………………………………………………39
Failure analysis and handling method
……………………………………………………………40
Failure alarm table of controller
…………………………………………………………………40
Failure analysis and handling method
…………………………………………………………41
-
5PKGP-SVX03A-EN
Digit 1,2,3 CGA = Air-Cooled Chiller and Heat Pump
Digit 4 Model
K = Cooling Only
R = Heat Pump
Digit 5,6,7 Model
030 100
050 120
060 150
075 200
Digit 8 Power Supply
5 = 380V/50Hz/3ph (For Model 030,050,060,07
5,100,120,150,200)
6 = 220V/50Hz/1ph (for 030 with single compressor and 060 with
double compressors)
Digit 9 Manufacturing Code (defaulted by factory)
R = R410A
Digit 10 Control
B=Microprocessor- based adjustable water temperature
controller
Digit 11 Water Side Electric Heater
N=None
Digit 12 Service Sequence
A=The fi rst time
Digit 13 Water Pump for Unit
R=With Pump inside (standard)
N=Without Pump
Digit 14 Applicable Ambient Temperature
R = Standard ambinent temperature/Blue-fi n
Digit 15 Fitting Options
N = None (Standard Unit)
Digit 16 Other option
B = Export
N
15
A
16
R
14
R
13
A
12
N
11
B
10
R
9
5
8
0
7
5
6
0
5
R
4
A
3
G
2
C
1
Model Nomenclatures
-
6 PKGP-SVX03A-EN
Dimensions
Mini casingCGAK/R-0305R/0306R/0505R/0605R (Unit: mm)
CGAK/R-0705 R (Unit: mm)
Ø1"Water outlet
Ø1"Water inlet
90
740
950670
1285
402
393
Mini-Koolman
186
647
90
402
393
1590
670
950
824
Mini-Koolman
732
186
1 1/4Water outlet
1 1/4Water inlet
-
7PKGP-SVX03A-EN
Dimensions
Standard casing
CGAK/R-0606R/1005R (Unit: mm)
CGAR/K-1505R (Unit: mm)
500
50
1290
FPT 1 1/4"B Water inletPower cable inletØ40
Water outlet
500
1900
900
1000
580
Drain waterFPT 1/2" B
99
75
FPT 1 1/4"B
120
155
TM
50
FPT 1-1/4"B
FPT 1/2" B
500
1990 580
1000
900
1900
500
Water outlet
Drain waterØ40
Water inletFPT 1-1/4"B
TM TM
125
120
90 985
-
8 PKGP-SVX03A-EN
Dimensions
CGAR/K-2005R (Unit: mm)
50
FPT 1-1/2"B
FPT 1/2" B
490.0000
1990
580
1000
900
1900
500.0000
Water outlet
Drain waterØ40
Water inletFPT 1-1/2"B
TM TM
125
120
90 985
500
1990
CGAR/K-1505R (Unit: mm)
50
FPT 1-1/4"B
FPT 1/2" B
500
1990 580
1000
900
1900
500
Water outlet
Drain waterØ40
Water inletFPT 1-1/4"B
TM TM
125
120
90 985
-
9PKGP-SVX03A-EN
Handling
Please use the forklift with proper capacity tonnage to
transport and handle, for weight of each
model please refer to reference table 1.
Table 1.
Please install the water chiller at a place with well drainage
facilities to facilitate massive drainage
during shutdown or repair.
Please use the forklift with proper capacity tonnage to move
this water chiller to its installation
position. During lifting work, please use canvas sling, which
shall be wrapped across the water
chiller pedestal and tied tightly, as shown in Figure 1.
Unit Installation
Model The maximum net weight (kg)≈ 0305R 1300306R 1310505R
1410605R 1490606R 3200755R 2021005R 4491205R 5301505R 5302005R
540
Protection
Cliver
Protection
Tape
Tape
sling
sling
Protection
Protection
Base
Figure 1. Hoisting diagram
-
10 PKGP-SVX03A-EN
Check the following items before installation
As received
If the content of the machine's name plate is the same as that
of the order.
• If there is any damage or material shortage during
transportation of the unit; if yes, please notify the
deliverer timely.
Installation position
• If there is adequate ventilation available at the installation
position.
• If drainage facilities are installed for handling the seeper
at the pedestal.
• Unpack the water chill er and dispose the packing materials
(such as paperboard, prospective fi lm
and etc.).
• If there are enough repair passages available.
• Fit springs or rubber shockproof gaskets.
• Fix the unit in its installation position.
• Adjust the levelness of the water chiller.
Adoption of the following water chiller fi xing methods can
minimize the noise of the water chiller:
• Install the unit on an independent concrete foundation.
• Fit spring or rubber shockproof gasket at each fi xing
foot.
For overall dimension of the water chiller and the dimension of
the foundation, please refer to
Figure 2. For recommended minimum maintenance space, please
refer to Figure 3.
4030
1630
450 730
1630
850
496
640 740
4030
640
740
450
496
2330
640
150
640
640
950
402 393
CGAR(K)0606R/1005R
CGAR(K)0305R/0306R/0505R/0605R/0755R
CGAR(K)1205R/1505R/2005R
Figure 2. Installation dimensions
Unit Installation
-
11PKGP-SVX03A-EN
Unit Installation
Water supply pipe Evaporator piping: • Clean out all cold water
piping.
• Connect the evaporator piping.
• Exhaust the air in the cold water system at the highest point
of this system piping.
• Install pressure meters, temperature meters and valves at the
inlet piping and outlet piping.
• Install strainer at the inlet piping of evaporator, mesh
number of the strainer screen shall be
equal to or more than 40 meshes.
• Install balance valve and fl ow switch at the outlet.
For installation positions of each typical accessory on water
supply piping of the water chiller, please
refer to Figure 4. Piping assembly may be changed depending on
positions of joint and water supply. For
installation diagram of typical system piping, please refer to
Figure 5.
CAUTION:• Water the pressure of the evaporator shall not be more
than 0.5MPa (i.e. maximum operation
pressure) to avoid damage of the parts at the cold water side of
the water chiller. • The return water temperature of heating shall
not be set more than 40℃; otherwise, the
compressor will not be exchanged as per the Three Guarantees. •
Before the fi nal piping connection of the water chiller, all
external water supply piping
systems shall be washed thoroughly. Any impurity mixed in the
piping system is strictly forbidden; otherwise, we will assume no
liability for any consequence so incurred.
NOTICE:If commercial acidic cleaning agent is used, a temporary
bypass tube shall be set at the side of the water chiller for
prevention of damage to evaporator. Please do not use untreated or
improperly treated system water supply to avoid damage to
machine.
CAUTION:• To avoid damaging the water chiller, the piping for
system water shall not be fi tted reversely.
The water inlet tube must be connected to the inlet connector
indicated by "water inlet". The water outlet tube must be connected
to the outlet connector indicated by "water outlet".
• Exhaust valve shall be set at the highest point of the piping,
in order to exhaust the air in the cold water system.
Figure 3. Service and Maintenance Space Requirement
Unit: mm
300
500
1500
300
500
Mini-Koolman
Air Direction
-
12 PKGP-SVX03A-EN
Unit Installation
Figure 4. Installation diagram for typical piping accessories
(the model of this diagram is CGAR100)
Make-up water
Water intake
Oil-return inlet
Automatic air vent
Manual gate valve
Balancing valve ball valve
Thermometer
Flow switch
Shockproof hose
Filter
Expansion tank
Manual gate valve
Manometer
Water intake
Water outlet Shockproof gasket
-
13PKGP-SVX03A-EN
Unit Installation
Figure 5. Installation diagram for typical system piping (the
model of this diagram is CGAR100)
Pressure water tank system
This system is used for adjustment of water pressure and amount
in the water loop.
Please install one manual shut-off valve at each side of the
system during installation to facilitate
future maintenance. Please refer to Figure 6 for the detailed
installation mode.
FCU= 1
FCU=2
FCU=3
FCU=4
FCU=5
FCU=6
Make-up water
Water drainage
Direct return
Manual gate valve
Thermometer
Flow switch
Shockproof hose
Manometer
Reversed return
Tee valve
water intake(Ø12.7mm) water drainage
(Ø12.7mm) inlet/outlet(Ø12.7mm)
DimensionModel A B C D E F G H
wtank-5 470 263 230 132 254 435 415 455
wtank-12 620 400 324 162 356 569 440 475
A
B
D
C E
H
GF
-
14 PKGP-SVX03A-EN
Unit Installation
Principle description 1. A pressure water tank shall be added in
the piping system to avoid pipe rupture resulting
from overpressure of piping due to ambient temperature
fluctuation and to prevent air hammer generated in the pipe.
2. To avoid overpressure or underpressure in the pipe, a makeup
water valve and a drainage valve shall be added; when the pressure
is lower than 0.6bar, the makeup water valve will open to make up
water automatically; and the drainage valve will open to drain
water automatically while the pressure is more than 5bar.
P
P
Makeup water valve
Drain Valve
Shut-off Electric heater
Fan coil X4
Tapwater
Water drainage
Direct return Reversed return
Shockproof hose
Thermometer
Automaticair vent
Primary Unit pressurisedwater tank
water strainer
flowswitch
Note: the automatic exhaust valve shall be set at the highest
point of the piping
Electric water heater
Figure 6. detailed installation mode.
-
15PKGP-SVX03A-EN
Electrical wiring• Connect the power wiring to the terminal
block (TB) of the water chiller distribution cabinet.
• Connect the control panel (installed indoor) and the master
control board of the primary water
chiller with connecting line of control panel. • If the model is
the one without water pump, please connect the power wiring of the
cold water
pump to the corresponding terminal of the pump. • Earth the
water chiller, cold water pump's motor (the model without water
pump) and all devices
needing to be grounded. • If the electric heater is equipped,
connect the power wiring and the control wiring on Terminal
TB2 of the electric heater. • If the fan coil two-way valve will
be used for interlocking, jumper JP6 on the control panel shall
be disconnected on site, and connect the interlocking point (dry
contact) to the point between the control terminals 12 and U.
• Connect the fl ow switch to the point between connecting
terminals U (or L) and 15 of the water
chiller control box.
Power supply of the water chiller
Please refer to the wiring diagram on the cover plate of the
water chiller control box; the installation unit shall supply power
with proper voltage and provide a suitable breaker to the water
chiller. For typical installation wiring diagram of the water
chiller, please refer to Page 20~24. For the actual wiring diagram,
please refer to the diagram on the cover plate of the control
box.
Electrical
WARNING: Before completion of electric wiring, please do not
supply power to avoid possible injury or death.
NOTICE:• The voltage of the power supply shall change within
±10% of the standard value.
CAUTION:• Only copper conductor can be used for connection to
the terminals, to avoid corrosion or
overheat. For minimum current, fuse specifi cation and
electrical specifi cations of motor, please refer to Table 2.
-
16 PKGP-SVX03A-EN
NOTICE:Scroll compressor is adopted in 380V water chiller and
power reverse-phase & open phase protection controllers are
installed in the water chiller, so the water chiller shall be
energized for inspection before starting. If the green light of the
phase sequence control in the electric control box brightens, the
phase sequence is correct. If the red light brightens, it means
reverse phase, and any two phases of the power line shall be
exchanged with each other. If the yellow light brightens, it means
open phase and it is necessary to cut off the electricity for
inspection. If the reverse phase or open phase appears, the water
chiller will automatically stop running or starting.
Electrical
MODELPower supply
(V/Hz/Ph)
Full load current of
water pumpFLA(A)
Full load current of chiller unit
FLA(A)
Rated current of the fan RLA(A)
Minimum current of the
water unit circuitMCA(A)
Recommended fuse
specifi cation REC(A)
Maximum specifi cation of the fuse
FMS(A)
Minimum specifi cation of the power
supply copper core wire
diameter (mm2)
0305R 380-415/50/3 1.1 8.6 1 12.85 15 21.45 4
0306R 220/50/1 2.4 25.6 1 35.4 41.8 61 10
0505R 380-415/50/3 1.1 9.6 1 14.1 16.5 23.7 4
0605R 380-415/50/3 1.1 13 1 18.35 21.6 31.85 6
0755R 380-415/50/3 1.4 14 1.5 20.4 23.9 34.4 6
0606R 220/50/1 2.4 51.2 4.8 63.5 71.2 85.6 16
1005R 380-415/50/3 1.4 16.4 1.6 23.5 27.6 39.9 6
1205R 380-415/50/3 3.26 22.4 3.2 34.46 40.06 58.5 10
1505R 380-415/50/3 2.6 24.6 8.4 41.75 47.9 61.15 10
2005R 380-415/50/3 3.2 26.6 8.4 44.85 51.5 68.7 16
• The difference between the power voltage and the standard
voltage shall not exceed 10 percent of the
standard value.
• Rated current(RLA)=the current of the machine under the ARI or
UL standard conditions
• Minimum circuit current(MCA)=maximum loadx1.25+sum of the
extra load (to decide the diameter of
the wire)
• Recommended fuse specifi cation(REC)=maximum loadx1.5+sum of
the extra load (to select the fuse
closest in specifi cation)
• Maximum fuse specification(MFS)=maximum loadx2.25+sum of the
extra load (to select the fuse
same or smaller in specifi cation)
Electrical specifi cations -50Hz
-
17PKGP-SVX03A-EN
Wiring Diagram
The following circuit diagrams are only for reference, and the
supplied circuit diagram shall prevail.
CGAR/K0305R*/0505R*/0605R*
NU
TH
2T
H1
TH
3T
H4
HEAT
FAN
PUMP
4WVA-HT
L
4MV
MF
OV-FA
N
OV-P
UMP
LP1
FLOW
OV-C
OMP
N-CO
M
EN-S
AVE
OV-H
EAT
3
N
AC
220
V～
N
47
811
AL
12 16
EG-S
AV
E
TR
AN
E P
/N 5
0000
3080
100
TB
1
MC
MC
380V
～/5
0Hz/
3Ø～
N
N
C0M
PM 3～
CC
H
NVU
RF
SC AB
(11)
(14)
RFS
L
MP
PU
MP
M 3～
(L1)
R
(L2)
(L3)
ST
COMP
MC
1
AL_IN
AL_OUT
LP1
FLO
W
N
MP
U 15 20 21
HP1
YL
OV
P
NU
UV
W
30
OV
P
6
CG
AR
/K06
05R
*C
GA
R/K
0505
R*
CG
AR
/K03
05R
*
MF
FAN
M 1～FA
NM 1～
MP
MC
MF
CC
HC
OM
P
AL-O
UT/IN
FLO
W
LP 4W
V
N-C
OM
EN
-SA
VE
FUN
Cfr
TB
HE
AT
A-H
TP
UM
P
OV-
PU
MP
2.
1.
4.
1＃２＃
CN
1
CN
2
CN
6
R
SW
1
SW
2
36
25C
/H
C/H
HP1
op
tio
n
322
3.
3
3
5.
CN
4
BA
+12V
GND
CN
1
AB
G
OV-
CO
MP
HP
cooling only not have
Wir
ing
Dia
gra
m
WH
RD
YL WH
RD
RD RD
BK
BL BL
RD RD
BK
TO C
ON
TR
OL
WIR
ING
Nam
eD
escr
ipti
on
Nam
eD
escr
ipti
on
Ch
iller
's W
ater
Pu
mp
Co
nta
cto
r
Co
mp
ress
or'
s S
tart
Co
nta
cto
r
Fan
Mo
tor
Co
nta
cto
r
Cra
nkc
ase
Hea
ter
Co
mp
ress
or
Wat
er C
ircu
it B
ased
Ele
ctri
cal
Hea
tin
g C
on
tro
l
Pla
te H
eat
Exc
han
ger
Hea
ter
Wat
er P
um
p
Fan
Mo
tor
Ala
rm O
utp
ut/
Inp
ut
Co
mm
on
Neu
tral
Lin
e
En
erg
y S
avin
g/2
-Way
Val
ve
Inte
rlo
ck
Ou
ter
Co
ol/H
eat
Pum
p S
etti
ng
On
-sit
e w
irin
g
Fact
ory
wir
ing
Co
mp
ress
or
Ove
rlo
ad
Flo
w S
wit
ch
Pum
p O
verl
oad
Hig
h p
ress
ure
sw
itch
Low
pre
ssu
re s
wit
ch
Term
inal
Blo
cks
Rev
ersi
ng
Val
ve
Fan
sta
rt c
apac
itan
ce
Live
wir
e
Neu
tral
wir
e
Au
xilia
ryel
ectr
ical
hea
ter
pla
te h
eat
exch
ang
eel
ectr
ical
hea
ter
Ala
rm in
dic
ato
r
RD
WH
AC
D_O
D_C
O2
Tran
sfo
rmer
Mic
rop
roce
sso
r co
ntr
ol b
oar
d
(on
e co
mp
ress
or)
Co
ntr
ol p
anel
(In
do
or
inst
alla
tio
n)
water inlet sensor
water outlet sensorsuction sensor
Defrost sensor cooling only not have defrost sensor
Co
mm
un
icat
ion
wit
h o
ther
un
its
mai
n c
on
tro
ller
po
wer
su
pp
ly o
f th
e m
ain
co
ntr
olle
r
If u
se 2
-val
ve in
erlo
ck,p
leas
e d
ial S
W2-
7 to
"O
N".
C
on
tro
l pan
el a
nd
mai
n c
on
tro
ller
are
op
tio
nal
.
For
all f
ault
inp
uts
.th
e u
nit
is n
orm
al w
hen
po
wer
on
an
d g
ives
an
ala
rm w
hen
po
wer
off
. T
he
flo
w s
wit
ch in
th
e o
n-s
ite
inst
alla
tio
n is
co
nn
ecte
d t
o b
etw
een
ter
min
al U
an
d t
erm
inal
15.
S
ing
le u
nit
th
e p
um
p is
op
tio
nal
,if c
ust
om
er p
rovi
de
pu
mp
,eac
h u
nit
can
use
dig
ital
ou
tpu
t 7
to c
on
tro
l it
,w
hile
rem
ove
the
wir
e ju
mer
bet
wee
n t
erm
inal
U a
nd
22,
con
nec
tio
n t
o t
he
pu
mp
pro
tect
ion
sig
nal
. (o
pti
on
)
Des
crip
tio
n
-
18 PKGP-SVX03A-EN
CGAR/K0306*
Wiring Diagram
NL
HEAT
FAN
PUMP
4WVA-HT
L
4MV
MF
3
N
AC
220V～
47
811
AL
TR
AN
E P
/N 5
0000
3080
200
TB
1M
P
MC
220V
～/5
0Hz/
N
PU
MP
M 1～
CC
H
NL
L
MC
CO
MP
M 1～
COMP
MC
1N
MP
NL
L
6
CG
AR
/K03
06R
*
MF
FAN
M 1～FA
NM 1～
Cr1 C
fr1
Cfr
2
TH
2T
H1
TH
3T
H4
1＃２＃
N 12EG
-SA
VE
L
LP1
FLO
W
18 15 20 21
CN
1
CN
2
CN
6
R
36
OV-FA
N
OV-P
UMP
LP1
FLOW
OV-C
OMP
N-CO
M
EN-S
AVE
OV-H
EAT
AL_IN
AL_OUT
HP1
MP
MC
MF
CC
HC
OM
P
AL-O
UT/IN
FLO
W
LP 4W
V
N-C
OM
EN
-SA
VE
FUN
Cfr
TB
HE
AT
A-H
TP
UM
P
OV-
PU
MP
25C
/H
C/H
SW
1
SW
2
HP1
OL
OL
OV-
CO
MP
HP
3
3
CN
4
BA
+12V
GND
CN
1
AB
G
1622
2.
1.
4.
3.
5.
Wir
ing
Dia
gra
m
op
tio
n
YLRD
RD
WH
YL
YL
RD RD
BK
BK
BL
BL
BL BL
TO C
ON
TR
OL
WIR
ING
Ch
iller
's W
ater
Pu
mp
Co
nta
cto
r
Fan
Mo
tor
Co
nta
cto
r
Cra
nkc
ase
Hea
ter
Co
mp
ress
or
Wat
er C
ircu
it B
ased
Ele
ctri
cal
Hea
tin
g C
on
tro
l
Pla
te H
eat
Exc
han
ger
Hea
ter
Wat
er P
um
p
Fan
Mo
tor
Ala
rm O
utp
ut/
Inp
ut
Co
mm
on
Neu
tral
Lin
e
En
erg
y S
avin
g/2
-Way
Val
ve
Inte
rlo
ck
Ou
ter
Co
ol/H
eat
Pum
p S
etti
ng
On
-sit
e w
irin
g
Fact
ory
wir
ing
Co
mp
ress
or
Ove
rlo
ad
Flo
w S
wit
ch
Pum
p O
verl
oad
Hig
h p
ress
ure
sw
itch
Low
pre
ssu
re s
wit
ch
Term
inal
Blo
cks
Rev
ersi
ng
Val
ve
Fan
sta
rt c
apac
itan
ce
Co
mp
ress
or'
s S
tart
Co
nta
cto
r
Nam
eD
escr
ipti
on
Nam
eD
escr
ipti
on
Live
wir
eN
eutr
al w
ire
Au
xilia
ryel
ectr
ical
hea
ter
pla
te h
eat
exch
ang
e
Ala
rm in
dic
ato
r
elec
tric
al h
eate
r
RD
WH
AC
D_O
D_C
O2
Tran
sfo
rmer
Mic
rop
roce
sso
r co
ntr
ol b
oar
d(o
ne
com
pre
sso
r)
cooling only not have
Co
mm
un
icat
ion
wit
h o
ther
un
its
mai
n c
on
tro
ller
po
wer
su
pp
ly o
f th
e m
ain
co
ntr
olle
r
(op
tio
n)
Co
ntr
ol p
anel
(In
do
or
inst
alla
tio
n)
water outlet sensorsuction sensor
Defrost sensor cooling only not have defrost sensor
If u
se 2
-val
ve in
erlo
ck,p
leas
e d
ial S
W2-
7 to
"O
N".
C
on
tro
l pan
el a
nd
mai
n c
on
tro
ller
are
op
tio
nal
.
For
all f
ault
inp
uts
.th
e u
nit
is n
orm
al w
hen
po
wer
on
an
d g
ives
an
ala
rm w
hen
po
wer
off
. T
he
flo
w s
wit
ch in
th
e o
n-s
ite
inst
alla
tio
n is
co
nn
ecte
d t
o b
etw
een
ter
min
al U
an
d t
erm
inal
15.
S
ing
le u
nit
th
e p
um
p is
op
tio
nal
,if c
ust
om
er p
rovi
de
pu
mp
,eac
h u
nit
can
use
dig
ital
ou
tpu
t 7
to c
on
tro
l it
,w
hile
rem
ove
the
wir
e ju
mer
bet
wee
n t
erm
inal
U a
nd
22,
con
nec
tio
n t
o t
he
pu
mp
pro
tect
ion
sig
nal
.
Des
crip
tio
nwater inlet sensor
-
19PKGP-SVX03A-EN
Wiring Diagram
CGAR/K0606R*
FLO
W
CC
H2
C/H
RUN
-OU
T/IN
EN
-SA
VE
N-C
OM
AL-
OU
T/IN
H/F
AN
PU
MP
A-H
AT
HT
/EV
1C
OM
PC
CH
MF
MC
4WV
TBHP
LPOV
P
OV
F
MP
FS
NL
MC
2C
CH
1
MC
1
5000
0310
0100
21LP
1
OV-C
OMP2
OV-C
OMP1
19 20
HP
1
OV-F
AN18
OV-P
UMP
LP1
OVF1
17
MO
TOR
CO
MP
1
CO
MP
2
M C
MF
MC
2
Cfr
FAN
M 1~
Cr2
1~S
M
R
MC
1
MP
Cr1
1~S
M
R1~P
UM
P
C
TB
1
Cp
r
220V
～/5
0Hz
LN
L NLP
2H
P2
1413 15
N-C
OM
N
C／
H25
220V
acL N
LP2
FS
CG
AR
/K06
06R
*
COMP2
M/FAN2
H/FAN1
A-HAT
4WV2
HE/EV1
4WV1
PUMP
4WV1
MC2
MP
24
57
11
AL
COMP1
1
RUN_OUT
RUN_IN
AL_OUT
AL_IN
10
RUN
NN
4WV2
8MF
MC1
36
36
EN-S
AVE
EG-S
AVE
CO
N1
CO
N2
TH2
TH1
TH3
TH4
TH5
TH6
CN
6
R
SW
2
SW
1
12C/
H
OV-
CO
MP
16
L N
HP1
HP2
OL1
OL2
OL2
OL1
22
33
3
CN
4
BA
+12V
GND
CN
1
AB
G
2.
1.
4.
3.
5.
OL
Live
wir
e
Neu
tral
wir
e
Live
Neu
tral
wir
ew
ire
op
tio
n
TO C
ONTR
OL W
IRIN
G
Wir
ing
Dia
gra
m
WH
Nam
eD
escr
ipti
on
Nam
eD
escr
ipti
on
On
-sit
e w
irin
g
Fact
ory
wir
ing
Co
mp
ress
or
Ove
rlo
ad
Flo
w S
wit
ch
Pum
p O
verl
oad
Fan
Ove
rlo
ad
Hig
h p
ress
ure
sw
itch
Low
pre
ssu
re s
wit
ch
Term
inal
Blo
cks
Rev
ersi
ng
Val
ve
Au
xilia
ryel
ectr
ical
hea
ter
pla
te h
eat
exch
ang
eh
eate
rel
ectr
ical
Ccooling only not have
RD
Tran
sfo
rmer
Defrost sensor 2cooling only not have defrost sensor
suction sensor 2
Co
ntr
ol p
anel
(In
do
or
inst
alla
tio
n)
Co
mm
un
icat
ion
wit
h o
ther
un
its
mai
nco
ntr
olle
r(o
pti
on
)
po
wer
su
pp
ly o
f th
e m
ain
co
ntr
olle
r
If u
se 2
-val
ve in
erlo
ck,p
leas
e d
ial S
W2-
7 to
"O
N".
C
on
tro
l pan
el a
nd
mai
n c
on
tro
ller
are
op
tio
nal
.
For
all f
ault
inp
uts
.th
e u
nit
is n
orm
al w
hen
po
wer
on
an
d g
ives
an
ala
rm w
hen
po
wer
off
. T
he
flo
w s
wit
ch in
th
e o
n-s
ite
inst
alla
tio
n is
co
nn
ecte
d t
o b
etw
een
ter
min
al U
an
d t
erm
inal
15.
S
ing
le u
nit
th
e p
um
p is
op
tio
nal
,if c
ust
om
er p
rovi
de
pu
mp
,eac
h u
nit
can
use
dig
ital
ou
tpu
t 7
to c
on
tro
l it,
wh
ile r
emov
e th
e w
ire
jum
er b
etw
een
ter
min
al U
an
d 2
2,co
nn
ecti
on
to
th
e p
um
p p
rote
ctio
n s
ign
al.
Ch
iller
's W
ater
Pu
mp
Co
nta
cto
r
Co
mp
ress
or'
s S
tart
Co
nta
cto
r
Fan
Mo
tor
Co
nta
cto
r
Cra
nkc
ase
Hea
ter
Co
mp
ress
or
Wat
er C
ircu
it B
ased
Ele
ctri
cal H
eati
ng
Co
ntr
ol
Pla
te H
eat
Exc
han
ger
Hea
ter
Wat
er P
um
p
Fan
Mo
tor
Ala
rm O
utp
ut/
Inp
ut
Co
mm
on
Neu
tral
Lin
e
Ru
n O
utp
ut/
Inp
ut
En
erg
y S
avin
g/2
-Way
Val
ve In
terl
ock
Ou
ter
Co
ol/H
eat
Pum
p S
etti
ng
YKRD
RD BK RD
RD
RDRD
BKYK
BL YK
BKYK
BL YK
RD BK
RD
WH
BKBK
ACD_
OD_C
O1
Mic
rop
roce
sso
r co
ntr
ol b
oar
d
(Tw
o c
om
pre
sso
rs)
YL
YL
YL
YL
Des
crip
tio
n
water inlet sensor
water outlet sensor
suction sensor 1
Defrost sensor 1
OVe
rlo
ad
-
20 PKGP-SVX03A-EN
Wiring Diagram
CGAR/K0755R*
NU
TH
2T
H1
TH
3T
H4
FLO
W
COMP
AL-OUT
AL-IN
PUMP
A-HEAT
HEATER
4WV
L
FAN
4WV
MC
MF
MP
OV-
FAN
OV-
PU
MP
HP
1
LP1
FLO
W
LP1
OV
P
OV-
CO
MP
N-C
OM
EN
-SA
VE
OV-
HE
AT
1
N
CO
N-P
CO
N-S
220V
~
N
34
67
8N
11
36
AL
12 15 16 20 21
EG-S
AV
E
AD
C_O
D_C
02
CG
AR
/K07
55R
*
TB
1
MC
MP
OV
P
MFA
NM
OTO
R
1#1~M
2# FAN
MC
(L3)
R
380V
~/50
Hz/
3Ø-N
NU
VW
PU
MP
CO
MP
(L2)
(L1)
ST
3 ~MM 3 ~
F1M
F CC
H
MO
TOR
1~
25 U
NV
UR
FSC AB
(11)
(14)
RFS
L
R
1~M3#
FAN
MO
TOR
HP1
SW
1
SW
2
MP
MC
MF
CC
HC
OM
P
AL-
OU
T/IN
FS LP 4W
V
N-C
OM
EN
-SA
VE
FUN
TB
HE
AT
A-H
TP
UM
P
OV
P
OV-
CO
MP
OV-
HE
AT
OV
F
HP
RFS
C/H
C/H
3
CN
4
BA
+12V
GND
CN
1
AB
G
CN
6
3
223
2.
1.
4.
3.
5.
Ala
rm in
dic
ato
r
cooling only not have
If u
se 2
-val
ve in
erlo
ck,p
leas
e d
ial S
W2-
7 to
"O
N".
C
on
tro
l pan
el a
nd
mai
n c
on
tro
ller
are
op
tio
nal
.
Th
e fl
ow
sw
itch
in t
he
on
-sit
e in
stal
lati
on
is c
on
nec
ted
to
bet
wee
n t
erm
inal
U a
nd
ter
min
al 1
5.
Sin
gle
un
it t
he
pu
mp
is o
pti
on
al,if
cu
sto
mer
pro
vid
e p
um
p,e
ach
un
it c
an u
se d
igit
al o
utp
ut7
co
ntr
ol i
t,w
hile
rem
ove
the
wir
e ju
mer
bet
wee
n t
erm
inal
U a
nd
22,
con
nec
tio
n t
o t
he
pu
mp
pro
tect
ion
sig
nal
.
Wir
ing
Dia
gra
m
RD
WH
YL
op
tio
n
RD
WH
YL
RD RD
BL
RD
BL
BK
RD
RD
BK
BKBK
TO C
ON
TR
OL
WIR
ING
Nam
eD
escr
ipti
on
Ch
iller
's W
ater
Pu
mp
Co
nta
cto
r
Co
mp
ress
or'
s S
tart
Co
nta
cto
r
Fan
Mo
tor
Co
nta
cto
r
Cra
nkc
ase
Hea
ter
Co
mp
ress
or
Au
xilia
ry e
lect
rica
l hea
ter
Pla
te H
eat
Exc
han
ger
Hea
ter
Wat
er P
um
p
Fan
Mo
tor
Ala
rm O
utp
ut/
Inp
ut
Co
mm
on
Neu
tral
Lin
e
En
erg
y S
avin
g/2
-Way
Val
ve In
terl
ock
Ou
ter
Co
ol/H
eat
Pum
p S
etti
ng
Nam
eD
escr
ipti
on
Co
mm
pre
sso
r ov
erlo
ad
Hea
ter
over
load
On
-sit
e w
irin
g
Fact
ory
wir
ing
Flo
w S
wit
chPu
mp
Ove
rlo
ad
Fan
Ove
rlo
ad
Hig
h p
ress
ure
sw
itch
Term
inal
Blo
cks
Ph
ase
Seq
uen
ce C
on
tro
ller
Rev
ersi
ng
Val
ve
Low
pre
ssu
re s
wit
ch
Live
wir
eN
eutr
al w
ire
Au
xilia
ryel
ectr
ical
hea
ter
pla
te h
eat
exch
ang
e
hea
ter
elec
tric
al
RD
Tran
sfo
rmer
YL
YL
Mic
rop
roce
sso
r co
ntr
ol b
oar
d(O
ne
com
pre
sso
r)
Co
mm
un
icat
ion
wit
h o
ther
un
its
con
tro
ller(
op
tio
n)
po
wer
su
pp
ly o
f th
em
ain
co
ntr
olle
r
water inlet sensor
water outlet sensor
suction sensor
Defrost sensor cooling only not have defrost sensor
Co
ntr
ol p
anel
(In
do
or
inst
alla
tio
n)
For
all f
ault
inp
uts
.th
e u
nit
is n
orm
al w
hen
po
wer
on
an
d g
ives
an
ala
rm w
hen
po
wer
off
.
Des
crip
tio
n
5000
0309
0100
-
21PKGP-SVX03A-EN
Wiring Diagram
CGAR/K1005R* 1205R/1505R*/2005R*
EN
-SA
VE
RU
N-O
UT
/IN
CC
H
PU
MP
AL-
OU
T/IN
N-C
OM
H/F
AN
HT
/EV
1A
-HA
T
CO
MP
MC
MF
MP
OV
F
4WV
HT
RH
SH
C
LP TBHP
FS OV
P
380V
～/5
0Hz/
3Ø
HS
2H
S1
HT
R
HC
HC
TB
2
UV
W
TB
2
N3N3TB
1
Wir
ing
Dia
gra
m
RFS
NU
TH2
TH1
TH3
TH4
L
0V-P
UM
P
FL0W
0V-C
0MP1
FREZ
/LP2
VH
T/H
P2
N-C
OM
EN-S
AV
E
C/H
N
CO
N1
CO
N2
AC
220
V～
N 12 15 U
EG-S
AVE
25 16
(11)
(14)
RFS
L
TH5
TH6
HP1
LP1
HP1
LP1FS
HP2
LP2
17 U13 14 20 21
0V-C
0MP2
0V-F
AN
OV
P
SW
2A
CD
_OD
_CO
1
CN
6
R
OV
F1O
VF2
YL
YL
4
SW
1
CG
AR
/K10
05R
*
CG
AR
/K20
05R
*
3
TO C
ON
TR
OL
WIR
ING
CC
H2
CC
H1
3130M
C2
FOR
CG
AR
/K 1
505
2005
ON
LY
MC
1
3～MFA
NM
OTO
R 2
MF
MFA
NM
OTO
R 1
3～
(L2)
(L3)
MC
2
ST
(L1)
RC
OM
P2
3～M
(L1)
(L2)
(L3)
MC
1
S RT
CO
MP
13～M
TB
1M
PO
L
3～MP
UM
P
WN
UV
380V
～/5
0Hz/
3Ø
N
V
B AR
FSC
C/H
5000
0229
0100
C/H
OV-
CO
MP
HT/EV1
4WV1
COMP1
COMP2
21
H/FAN1
M/FAN2
RUN-OUT
PUMP
4WV2
A-HAT
RUN-IN
87
6N
10
MP
RU
N
MC
2M
F
AL-OUT
AL-IN
N11
AL
34
5
MC
14W
V1
4WV2
6
1. 2. 4
WH
CG
AR
/K15
05R
*
CN
4
BA
+12V
GND
CN
1
AB
G
3.
3
3
5. 6.
3.
22
BKBK
WH
WH
RDRD BK
BK
WH
WH
RDRD
BKBK
WH
WH
RDRD
BKBK
BK
WH
WH
WH
RDRD
RD
optio
n
mai
n m
anch
ine
sid
e
elec
tric
al h
eate
r si
de
wat
er c
ircu
it e
lect
rica
l hea
ter
op
tio
n
Nam
eD
escr
ipti
on
Nam
eD
escr
ipti
on
Ch
iller
's W
ater
Pu
mp
Co
nta
cto
r
Co
mp
ress
or'
s S
tart
Co
nta
cto
r
Fan
Mo
tor
Co
nta
cto
r
Cra
nkc
ase
Hea
ter
Co
mp
ress
or
Wat
er C
ircu
it B
ased
Ele
ctri
cal
Hea
tin
g C
on
tro
l
Pla
te H
eat
Exc
han
ger
Hea
ter
Wat
er P
um
p
Fan
Mo
tor
Ala
rm O
utp
ut/
Inp
ut
Co
mm
on
Neu
tral
Lin
e
Ru
n O
utp
ut/
Inp
ut
En
erg
y S
avin
g/2
-Way
Val
ve
Inte
rlo
ckO
ute
r C
oo
l/Hea
t Pu
mp
Set
tin
gO
n-s
ite
wir
ing
Fact
ory
wir
ing
Co
mp
ress
or
Ove
rlo
ad
Flo
w S
wit
ch
Pum
p O
verl
oad
Fan
Ove
rlo
ad
Hig
h p
ress
ure
sw
itch
Low
pre
ssu
re s
wit
ch
Term
inal
Blo
cks
Ph
ase
Seq
uen
ce C
on
tro
ller
Rev
ersi
ng
Val
ve
Hea
ter
Co
nta
cto
r
Hea
ter
Pro
tect
or
Wat
er C
ircu
it H
eate
r
Live
wir
e
Neu
tral
wir
e
Au
xilia
ryel
ectr
ical
hea
ter
pla
te h
eat
exch
ang
e
hea
ter
elec
tric
al
Ru
n in
dic
ato
rA
larm
ind
icat
or
cooling only not have
RD
Tran
sfo
rmer
Mic
rop
roce
sso
r co
ntr
ol b
oar
d(T
wo
co
mp
ress
ors
)
water inlet sensor
water outlet sensor
suction sensor 1
Defrost sensor 1
Defrost sensor 2cooling only not have defrost sensor
suction sensor 2
YL
YL
Co
ntr
ol p
anel
(In
do
or
inst
alla
tio
n)
Co
mm
un
icat
ion
wit
h o
ther
un
its
mai
nco
ntr
olle
r(o
pti
on
)
po
wer
su
pp
ly o
f th
e m
ain
co
ntr
olle
r
CG
AR
/K15
05/2
005
hav
e th
e fa
n2
over
load
pro
tect
sw
itch
. If
use
2-v
alve
iner
lock
,ple
ase
dia
l SW
2-7
to "
ON
".
Co
ntr
ol p
anel
an
d m
ain
co
ntr
olle
r ar
e o
pti
on
al.
For
all f
ault
inp
uts
.th
e u
nit
is n
orm
al w
hen
po
wer
on
an
d g
ives
an
ala
rm w
hen
po
wer
off
. T
he
flo
w s
wit
ch in
th
e o
n-s
ite
inst
alla
tio
n is
co
nn
ecte
d t
o b
etw
een
ter
min
al U
an
d t
erm
inal
15.
S
ing
le u
nit
th
e p
um
p is
op
tio
nal
,if c
ust
om
er p
rovi
de
pu
mp
,eac
h u
nit
can
use
dig
ital
ou
tpu
t 7
to c
on
tro
l it
,w
hile
rem
ove
the
wir
e ju
mer
bet
wee
n t
erm
inal
U a
nd
22,
con
nec
tio
n t
o t
he
pu
mp
pro
tect
ion
sig
nal
.
Live
wir
e
Des
crip
tio
n
-
22 PKGP-SVX03A-EN
Preparations before starting
Voltage range
Power supply of the water chiller must conform to the operation
power supply marked on
the name plate, and the power voltage & unbalances between
each phase must be within the
following scope. Gauge the voltages between each phase, readings
of which must be within
the acceptable voltage tolerance (±10%) marked on the name
plate. If any voltage between two
phases is not within the tolerance, electricity company shall be
notifi ed to correct such condition
before the water chiller running. Improper voltage will result
in abnormal control function, and
shorten the life of various electrical parts & compressor
motor.
Voltage unbalance
If there is signifi cant voltage unbalance between each phase of
the three-phase electricity system,
it will result in motor overheat and then induce motor failure.
The maximum allowable voltage
unbalance is 2%, voltage unbalance is defi ned as follows:
voltage unbalance %=100x|Va-Vd|
%
Va
Wherein:
Va=(V1+V2+V3)/3 (average voltage)
V1,V2,V3=voltage between phases
Vd=voltage between phases with maximum difference to Va
Water fl ow
The fl ow rate of the cold water passing through the water
chiller must be between the upper limit
and the lower limit listed in table 4. If the fl ow rate of the
cold water coming into the evaporator is
below the lower limit, it will result in discontinuous water fl
ow and reduce the heat transfer effect,
and then lead to out-of-control expansion valve or abnormal
underpressure jump. Conversely, if
the fl ow rate is above the upper limit, parts inside of the
evaporator will be corroded.
Water pressure drop
Gauge the water pressure difference between the inlet and outlet
of the water chiller (with water
pump), then the head outside the water chiller at this water
amount can be acquired, which shall
be basically shown as the "head outside the water chiller "
curve. When the standard model with
water pump is used, for the design of piping system please refer
to the "head outside the water
chiller" curve. If the model without water pump is used (water
pump is installed outside of the
water chiller), internal water pressure drop of the water
chiller shall be basically shown as the
"water pressure drop of the water chiller " curve. When the
model without water pump is used, for
the design of piping system please refer to the "water pressure
drop of the water chiller" curve.
-
23PKGP-SVX03A-EN
Preparations before starting
Type Lower limit of fl ow Rated fl ow Upper limit of fl ow
Connection Dimension
CGAR0305 19.4 29.8 38.8 1"CGAR0306 20.7 31.8 41.4 1"CGAR0505
24.2 37.3 48.4 1"CGAR0605 30.4 46.7 60.7 1"CGAR0755 41.7 64.2 83.5
1 1/4"CGAR0606 41.4 63.6 82.7 1 1/4"CGAR1005 49.4 76.0 98.8 1
1/4"CGAR1205 72.1 110.3 143.4 1 1/4"CGAR1505 86.1 132.4 172.1 1
1/4"CGAR2005 98.7 151.9 197.5 1 1/2"
• Check connection of all wiring, and all electric connection
points shall be kept clean and locked
tightly.
• Check if the power voltage of the water chiller is normal.
• Fully fi ll the cold water loop with water, and the exhaust
valve of the system shall be kept open
during fi lling, which shall be closed after the loop being fi
lled fully.
• Make short circuit connection on fl ow switch to test the
water system.
• Power on the main power and press the ON/OFF button on the
control panel to start the water
chiller, then the water pump shall start up and the water fl ows
circularly in the cold water
system, please check if there is any leakage at all piping
connection points.
• Adjust the water fl ow in the cold water loop, to inspect the
external water pressure of the water
chiller (for the standard model) or pressure drop of the
evaporator (for the model without water
pump).
• Stop operation of the water pump. Shut off all power
supply.
• Connect the fl ow switch to the connection point on the
terminal block in the control box.
Table 3. Water fl ow of the primary water chiller m3/h
WARNING: When the ambient temperature is below 16℃ in winter,
please do not cut off the power, and preheat the water chiller 24
hours before starting it, or else the compressor will be
damaged.
CAUTION:When the water pump is running, the water fl ow shall be
adjusted to 50%of the maximum fl ow rate, and the connection point
of the fl ow switch shall be adjusted as open circuit. Please use
ohmmeter to verify if the connection point of the switch is open or
close.
NOTICE:If the actual water fl ow rate is less than70%*rated fl
ow, the return water temperature of refrigeration is required being
set ≥10℃; or else it is necessary to add antifreezer into the water
system (volume concentration of glycol in the water system has to
be ≥15%);
-
24 PKGP-SVX03A-EN
Preparations before starting
CGAR0305
0
5
10
15
20
25
30
35
1.07 1.25 1.43 1.61 1.79 1.97 2.15 2.33 2.51
Wat
er P
ress
ure
Dro
p (
mH
2O)
Wat
er P
ress
ure
Dro
p (
mH
2O)
Wat
er P
ress
ure
Dro
p (
mH
2O)
Wat
er P
ress
ure
Dro
p (
mH
2O)
Wat
er P
ress
ure
Dro
p (
mH
2O)
Wat
er P
ress
ure
Dro
p (
mH
2O)
Wat
er P
ress
ure
Dro
p (
mH
2O)
Wat
er P
ress
ure
Dro
p (
mH
2O)
CGAR0306
0
5
10
15
20
25
30
35
1.146 1.337 1.528 1.719 1.91 2.101 2.292 2.483 2.674
CGAR0505
0
5
10
15
20
25
30
1.344 1.568 1.792 2.016 2.24 2.464 2.688 2.912 3.136
CGAR0605
0
5
10
15
20
25
30
1.68 1.96 2.24 2.52 2.8 3.08 3.36 3.64
CGAR0606
0
5
10
15
20
25
30
2.292 2.674 3.056 3.438 3.82 4.202 4.584 4.966 5.348
CGAR0755
0
5
10
15
20
25
30
2.31 2.70 3.08 3.47 3.85 4.24 4.62 5.01 5.39
CGAR1005
0
5
10
15
20
25
30
2.74 3.19 3.65 4.10 4.56 5.02 5.47 5.93
CGAR1205
0
5
10
15
20
25
30
35
4.03 4.70 5.37 6.04 6.71 7.38 8.05
Water Flow：m3/h Water Flow：m3/h
Water Flow：m3/h Water Flow：m3/h
Water Flow：m3/hWater Flow：m3/h
Water Flow：m3/h Water Flow：m3/h
Figure 7. Unit Hydraulic curve diagram
-
25PKGP-SVX03A-EN
Preparations before starting
Unit Settings
Before starting or debugging of the water chiller, please confi
gure the functional parameters and
operation parameters of the water chiller as per the following
methods fi rstly. Function setting
of the water chiller is mainly conducted through jumper, dial
switch and system bit. Incorrect
settings will result in misoperation of water chiller and even
not running.
Jumper settings
Jumper JP1 is used for control in software version, and software
download can be conducted
with the JP1 removed; if short circuit is made to JP1, the
system will operate normally.
Dial switch settings
Dial switch SW1 is used for encoding the centralized control
address bit, and it is used for setting
the address of each water chiller in networking control. Dial
switch SW2 is used for defi nition of
the water chiller's main functions, each bit defi nition of
which is in the following table, wherein,
Bit3 and Bit4 are only valid for the water chiller with double
compressors.
Mode:
00 Normal operation mode 01 Computer supervision mode
10 System self-checking and confi guration mode 11 On-site
commissioning mode
C/H:
0 "external refrigeration/heating switch" invalid 1 "external
refrigeration/heating switch" valid
Fan:
0 single fan 1 double fans
Type:
00 heat pump + electric heating 01 single refrigeration method +
electric heating
10 single refrigeration method + electric heating 11 single
refrigeration method
EnSave:
0 routine 1 two-way valve interlock
Control:
0 single machine control 1 module control
Bit1 Bit2 Bit3 Bit4 Bit5 Bit6 Bit7 Bit8Mode C/H Fan type EnSave
Control
Wat
er P
ress
ure
Dro
p (
mH
2O)
Wat
er P
ress
ure
Dro
p (
mH
2O)
CGAR1505
0
5
10
15
20
25
30
35
4.76 5.56 6.35 7.15 7.94 8.73 9.53
Water Flow：m3/h
CGAR2005
5
10
15
20
25
30
35
40
45
50
55
5.47 6.38 7.29 8.20 9.11 10.02 10.93 11.84
Water Flow：m3/h
Pump Head Internal Pressure Drop Allowable External Pressure
Drop
-
26 PKGP-SVX03A-EN
Preparations before starting
System position setup
System bit is a byte of memory. It can be set through a wire
controller (to input "as password).
Each bit is defi ned as below:
Auto: (50)
0 Power-on manual start (default)
1 Power-on auto start (in the event of power failure)
Defrost: (51)
0 "Manual defrost" in vain (default)
1 "Manual defrost" in force
Flow: (52)
0 "Water switch mode" in vain (default)
1 "Water switch mode" in force (to give an alarm in 30S upon
stop of water pump if switch is in
closure)
Ambient: (53)
0 Ambient thermo probe in vain (default)
1 Ambient thermo probe in force
Temp: (54)
0 "Suction temperature" in force (default, new Koolman)
1 "Suction temperature" in vain (old Koolman)
Operating parameter setting
The protection and operation parameters of the water chiller can
be set through the controller in a
shutdown state. Default parameters are set as below:
Bit8 Bit7 Bit6 Bit5 Bit4 Bit3 Bit2 Bit1Temp Flow void Ambient
Mode Defrost Pulse Auto
Parameter setup Maximum value Minimum value Regulation precision
Factory setting
Refrigerating return water temperature 25℃ 5℃ 1℃ 12℃Heating
return water temperature 50℃ 25℃ 1℃ 40℃ Winter antifreezing
temperature 5℃ 1℃ 1℃ 3℃Defrost interval 90min 30min 1min
45minMinimum running time of defrost 8min 1min 1min 3minPassword
input range 75 50 - 50
NOTICE:a. It is recommended that refrigerating return water
temperature be kept as factory setting;
otherwise low temperature setting may lead to low outlet water
temperature and cause an antifreezing alarm.
b. In case actual water fl ow is less than 70% of rated fl ow,
refrigerating return water temperature setting shall be at least ,
otherwise the addition of antifreezing agent into water system is
necessary (volume concentration of ethylene glycol in the water
system is not lower than 15%).
c. To prevent antifreezing alarm at low refrigerating return
water temperature setting, please increase the addition of
antifreezing agent or use a large fl ow water pump in the water
system. Please consult Trane after-sales service personnel to
modify the antifreezing setting.
-
27PKGP-SVX03A-EN
Running Operation of the Water Chiller
Starting procedures
• Switch the water chiller power on, press MODE button on the
control panel to choose refrigerating
or heating, and then press ON/OFF button to start the water
chiller operation. • Keep the water chiller operating for more than
30MIN, and when system operation is stable, check
the following items to ensure the normal operation of the water
chiller: 1.Check whether the water fl ow and pressure of the water
chiller are stable in a normal range. 2.Test high and low pressure
of the water chiller. During normal operation, low pressure shall
be
85-145psig (0.586-1.0MPa), while high pressure shall be
2.290-500psig (2.0-3.45MPa). 3.Check current of compressor. 4.Check
power supply. 5.Check whether there is water in the sight glass of
liquid line. 6.Test system superheat degree. Under ARI
circumstances (inlet water temperature at , outlet
water temperature at and ambient temperature at ), normal system
superheat degree of each circuit is 5. In case superheat degree of
any circuit measured is beyond this range, superheat setting of
expansion valve shall be appropriately regulated. In such case, the
new setting shall be stabilized in 15-30min.
7.Under ARI circumstances, the normal system supercooling degree
of each circuit is 5. In case supercooling degree of any circuit
measured is beyond this range, necessary regulation shall be
carried out following the check of supercooling. In the case of
normal superheat but abnormal supercooling, please contact
professional maintenance personnel.
8.In the case of inadequate cooling agent exhibited through
running pressure, sight glass, superheat degree and supercooling
degree, leak points shall be identifi ed, and gaseous cooling agent
shall be charged to the circuit. During the water chiller
operation, cooling agent is fi lled from low pressure line till
normal working pressure becomes available. Low running pressure
gives an indication of low supercooling degree, meaning inadequate
cooling agent.
9.In case working pressure reveals excessive cooling agent,
cooling agent shall be reclaimed from liquid line little by little
(so as to reduce loss of refrigerant oil as far as possible).
• Ensure that all temperature sensors are correctly located with
their capillary tubes fi rmly fi xed so
as to prevent vibration and abrasion.
• Check the water chiller, and clear away wastes, tools and
parts. Secure all sheet metal parts of the
housing, including control panel and compressor access panel,
and restore all screws.
Cautions:
CAUTION:• In winter, close water supply valve of all
evaporators, open drain valve and the vent valve in
the pipeline of the water chiller so as to discharge water from
the evaporator, and mount a drain plug. Regarding to ultra-thin top
cooling fans, completely release water in the pipeline by a drain
valve, and then open the bottom drain valve to remove all residual
water in the evaporator. In case water in the cold water pipe
cannot be completely discharged, proper antifreezing solution can
be injected so as to prevent freezing of residual water that may
lead to damage of the water chiller.
-
28 PKGP-SVX03A-EN
Running Operation of the Water Chiller
Long-term shutdown
• For long-term shutdown, the following procedures shall be
carried out before system halt:
1. Check whether cooling agent piping leaks, and if so, be sure
to have it repaired. 2.Maintain water pump and air conditioning
plant as proposed by manufacturer. 3.Discharge all circulating
water from the system, unscrew dewatering outlet in the water
supply and return circuit, dismantle side panel of the water
chiller, and unscrew the dewatering outlet in the bottom of water
pump and plate type heat exchanger so as to ensure complete
discharge of circulating water.
4.Turn off power switch of the water chiller and water pump.
Restarting the system after long-term shutdown
1.Open the valve of the water return and supply pipeline, and
charge clean water into the cold water pipeline. Be sure to exhaust
at the time of water charge, and close the vent valve when the
system is full of water.
2.Bring connection of fl ow switch into short circuit so as to
measure the water system. 3.Switch on power switch of the water
chiller. 4.Press ON/OFF button on the control panel to start the
water chiller. When cold water is circulated
in the water system, check whether there is any piping joint
leaking. 5.Regulate fl ow of the cold water pipeline by a balance
valve, and check the water pressure of the
water chiller. 6.Regulate the flow switch (arranged in the water
discharge pipe of the water chiller), so as to
ensure normal running. 7.Press ON/OFF button on the control
panel to stop the water chiller. 8.Restore connection of the fl ow
switch. In this way, the water chiller can run normally at
once.
System protection
Low voltage protection (LP1, LP2)
A low voltage switch is provided to protect the water chiller.
When the operation voltage is below 21±7psig(1.145±0.048MPa),
compressor operation is stopped, and when it reaches
36±7psig(0.248±0.048MPa), compressor operation is automatically
restored. Two-minute short circuit is necessary for starting up, in
case of unnecessary trip.
CAUTION:• In winter, close water supply valve of all
evaporators, open drain valve and the vent valve in
the pipeline of the water chiller so as to discharge water from
the evaporator, and mount a drain plug. Regarding to ultra-thin top
cooling fans, completely release water in the pipeline by a drain
valve, and then open the bottom drain valve to remove all residual
water in the evaporator. In case water in the cold water pipe
cannot be completely discharged, proper antifreezing solution can
be injected so as to prevent freezing of residual water that may
lead to damage of the water chiller.
CAUTION:• During water pump operation, regulate water fl ow to
half of maximum fl ow, and disconnect
the contact of the fl ow switch. Please use ohmmeter to verify
if the connection point of the switch is open or close.
-
29PKGP-SVX03A-EN
Running Operation of the Water Chiller
High voltage protection (HP1, HP2)
A high voltage switch gear is provided to protect the water
chiller. When high voltage exceeds 602±22psig(4.15±0.15MPa),
compressor operation is stopped, and when the pressure is dropped
to 479±22psig(3.303±0.152MPa), compressor operation is
automatically restored.
Antifreezing function in winter
In winter, when the water chiller is in a standby state, if
water temperature is below the winter antifreezing temperature
setting, the water chiller automatically will enter antifreezing
operation, displaying "AP". Therefore, the water chiller power
supply in winter shall be switched on even if the water chiller is
in a standby state.
Antifreezing of plate type heat exchanger
In a refrigeration state, in case outlet water temperature is
below , compressor shall be closed, and water pump shall continue
to run, displaying "E3".
High voltage protection of plate type heat exchanger
In the case of heating by a single compressor system, when
cooling agent pressure at plate side is over a certain value, the
fan or both the fan and compressor shall be closed, displaying
"E.
Overload protection of motor
• Compressor motor overload and superheat protection
• Water pump motor overload protection
• Fan motor superheat protection
• Thermo probe protection
In case the thermo probe fails, an alarm will be sent and the
system will be halted. * As all alarm protection is subject to
manual reset, before the system is restored by pressing
the RESET key or being restarted, the failure needs to be
eliminated fi rstly.
Flow protection
In order to prevent too low water fl ow that may lead to
freezing of the evaporator, a fl ow switch (or any other fl ow
sensing device) shall be arranged in the water pipe of the
evaporator. Its setting shall meet the requirement that when water
fl ow is below 70% of total design fl ow of the system, compressor
shall be stopped immediately.
Running operation of the water chiller
Thermo probe (TH1)
Thermo probe (TH1) senses inlet water temperature of the system
as a basis of starting or stopping the compressor under cold and
hot states.
-
30 PKGP-SVX03A-EN
Running Operation of the Water Chiller
Cooling mode:
Dual systemWhen the system is started, the water pump shall run
at once. After a period of 2MIN, the water pump continues to run.
When return water temperature reaches or more, No.1 compressor will
be started. In one minute, No. 2 compressor will be started
provided return water temperature is more than . On condition that
the cooling requirement is met, and return water temperature is
lowered to , No. 1 compressor will be stopped. In case return water
temperature continues to lower to , No. 2 compressor will also be
stopped. Later on, as load is increased and return water
temperature is raised to , No. 1 compressor will be started again.
In case return water temperature continues to increase to , No. 2
compressor will also be started. The water pump will not stop
unless the water chiller is shut down.
Single system When the system is started, the water pump shall
run at once. The water pump continues to run after 2MIN; and in
case return water temperature is over , the compressor will be
started. On condition that the cooling requirement is met, and
return water temperature is lowered to , the compressor will be
stopped. Later on, as load is increased and return water
temperature is raised to , No. 1 compressor will be started again.
The water pump will not stop unless the water chiller is shut
down.
Heating mode:
Dual systemWhen the system is started, the water pump shall run
at once. 2min later, the water pump remains in operation; if return
water temperature is below , No. 1 compressor will be started. 1MIN
later, if return water temperature is below, No. 2 compressor will
be started. If the heating requirement is met and return water
temperature is increased to , No. 1 compressor will be stopped; and
if return water temperature continues to rise to, No. 2 compressor
will also be stopped. Later on, load is changed; if return water
temperature is lowered to , No. 2 compressor will be started; and
return water temperature continues to drop to , No. 1 compressor
will also be started. The water pump will not stop unless the water
chiller is shut down.
Single systemOperation of water pump, fan and compressor of
single system is the same as that of dual system. The only
difference is that when return water temperature of single system
is below , the compressor will be started, and when return water
temperature of single system is over , the compressor will be
stopped.
Ambient temperature operation limit
Outdoor ambient temperature
Cooling mode Heating mode
mini 21℃ -7℃
max 43℃ 21℃
Leaving water temperature
Cooling mode Heating mode
mini 5℃ 40℃
max 15℃ 50℃
-
31PKGP-SVX03A-EN
Controller
Wired controller
-
32 PKGP-SVX03A-EN
Controller
Operation and display panel
Control panel 1. On/Off button 2. Mode button, controlling
refrigeration and heating. Mode setting must be carried out in a
shutdown state. 3. Fault resetting button, pressed for manual
resetting when a failure alarm is given. 4. Parameter setting
button, pressed to perform parameter setting (password is
necessary). 5. Time browse/setting/timing setting button,
specifying timed on/off time as 00:00-23:59. 6. Timing function
option button 7. Setting button, the two buttons are pressed to
examine or modify parameter setting.
Display panel
8. Defrost display 9. Water pump start display 10. Antifreezing
function start display 11. Second compressor start display 12.
Electric heater start display 13. Water chiller heating display 14.
First compressor start display 15. Water chiller refrigeration
display 16. Temperature or parameter display window
Operation instructions of the panels
1. On/off operation Firstly choose the wanted mode, then press
the key to run this mode, and again press the key to close the
system. Frequent on/off operation is strictly prohibited. 2. Mode
selection The modes of refrigeration and heating must be set in a
shutdown state. 3. Parameter browse Parameters to be browsed cover
refrigerating return water temperature, heating return water
temperature, winter antifreezing temperature, defrost interval and
running time of defrost. By double control of the key, the fi ve
parameters can be browsed. 4. Outlet water temperature display When
the system is on, upon pressure of the mode key, the LCD displays
outlet water temperature for 6 seconds by fl ashing. 5. Fault
resetting operation When the system is out of order, an alarm
sounds for 2 seconds with backlight fl ashing. Press the key to
remove the failure and stop alarming. If the failure cannot be
removed, the alarm continues to sound for 2S with backlight fl
ashing. 6. Parameter setup Parameter setting refers to separate
setting of the above five parameters according to user
requirements. "、" key is involved. It functions as increase and
decease. 7. Normal state display In a power-on state, current
return water temperature, as well as working conditions of
compressor, heater and water pump, is displayed. In a timed state,
ON lights for timed start, and OFF lights for timed shutdown. The
fi ve parameters can be set in a shutdown state. If no key is in
service, normal state display will be restored in 10S, with
backlight stopped in 15S. Backlight flashes upon failed
communication.
-
33PKGP-SVX03A-EN
Functional description
Refrigeration state temperature control Single compressor
control
Double compressor control
Control action Low water temperatureChange of return water
temperature High water temperature
compressor startcompressor stop
Temperature descriptions Set value
Noting: Control action is performed when temperature reaches the
arrow.
Control action Low water temperatureChange of return water
temperature High water temperature
compressor start
compressor start
compressor stop
compressor start
Temperature descriptions
Set value
Noting: Control action is performed when temperature reaches the
arrow.
-
34 PKGP-SVX03A-EN
Functional description
Temperature control in the heating status Single compressor
control
Double compressor control
Compressor protection time-delay function
When the water chiller is powered on, the compressor needs to be
delayed for at least 2MIN. Then when the water chiller is
automatically started and stopped, the compressor needs to be
delayed for at least 3min.
Electric heating control
When the return water temperature is lower than the set value of
(single compressor unit) or when return water temperature is not
greater than the set value of (double compressor unit), start the
electric heater. When return water temperature is not lower than
(set value), stop the electric heater.
Control action Low water temperatureChange of return water
temperature High water temperature
compressor startcompressor stop
Temperature descriptions Set value
Noting: Control action is performed when temperature reaches the
arrow.
Control action Low water temperatureChange of return water
temperature High water temperature
compressor start
compressor start
compressor stop
compressor start
Temperature descriptions
Set value
Noting: Control action is performed when temperature reaches the
arrow.
-
35PKGP-SVX03A-EN
Failure analysis and handling method
Failure alarming table
"EE" code is displayed as controller and control panel
communication fails. A total of 13 fault input alarm switches, as
well as 1 failure output alarm switch, are provided for single
compressor system
A total of 17 failure input alarm switches, as well as 1 fault
output alarm switch, are provided for dual compressor system
S/N Input port Fault Description Type Code Troubleshooting
1 TH1 Return water temperature sensing line in short/open
circuit A SE All peripherals are to be closed.
2 TH2 Outlet water temperature sensing line in short/open
circuit A SL All peripherals are to be closed.
3 TH3 Suction temperature 1 in short/open circuit A Sd All
peripherals are to be closed.
4 TH4 Defrost temperature sensing line 1 in short/open circuit A
S1 All peripherals are to be closed.
5 OVHT/HP2 Electric heating overload B H2 The electric heater is
to be closed.
6 FLOW Inadequate water fl ow D FL All peripherals are to be
closed.
7 OV-PUMP Water pump overloaded B OP All peripherals are to be
closed.
8 OV-FAN Fan overloaded B OF All peripherals are to be
closed.
9 OV-COMP1 Compressor 1 overloaded C C1 Only compressor 1 is to
be shut down.
10 HP1 Compressor 1 high voltage alarming C H1 Only compressor 1
is to be shut down.
11 LP1 Compressor 1 low voltage alarming C L1 Only compressor 1
is to be shut down.
12 / / / R e f r i g e r a t i n g o u t l e t w a t e r
temperature is too low. D E3The compressor is to be shut down,
while the auxiliary heater of water pump is to work.
13 / / / Suction temperature is too low. D E4 The compressor is
to be shut down, while the auxiliary heater of water pump is to
work.
S/N Input port Fault Description Type Code Troubleshooting
1 TH1 Return water temperature sensing line in short/open
circuit A SE All peripherals are to be closed.
2 TH2 Outlet water temperature sensing line in short/open
circuit A
