Trane CXAJ series Installation and operating instructions

Modular Air-Cooled Chiller (Heat Pump) Unit
CXAJ/CGAJ
Jan. 2016 PKGP-SVX06A-EN
Installation, Operation and
Maintenance
690134220001
Safety Warning
Only qualified personnel may install and maintain the unit.The installation, start-up and maintenance of heating,
ventilating and air-conditioning unit will be hazardous, and the operator shall have specific knowledge and training.
Improper installation, adjustment or change of the unit by an unqualified person will result in death or serious injury.
When operating the unit, pay attention to all precautions in the documents and the tags and labels attached to the
unit.

2
Table of Contents
General Information ………………………………………………………………………………… 3
Safety Precautions…………………………………………………………………………………… 4
Nomenclature ………………………………………………………………………………………… 5
Dimensions …………………………………………………………………………………………… 6
Performance Data …………………………………………………………………………………… 7
Unit Installation ……………………………………………………………………………………… 9
Electrical Installation……………………………………………………………………………… 15
Wiring Diagram …………………………………………………………………………………… 17
Pre-Start-up ………………………………………………………………………………………… 22
Unit Operation …………………………………………………………………………………… 29
Module Control System ………………………………………………………………………… 35
Building Control System ………………………………………………………………………… 48
Troubleshooting …………………………………………………………………………………… 50
Maintenance ……………………………………………………………………………………… 60

This manual is the customer property, which shall be used with the unit. Please put it back to the tecŠical information
bag after the completion of the work, and keep it properly.
Please read this manual carefully before installing the air conditioning unit, and install and maintain the unit according
to this manual to ensure the normal and reliable operation of the unit. Installation of the air conditioning unit must be
completed by the professional designated byTrane Company. If the installation or maintenance is done by unqualified
personnel or fails to comply with the requirements of this manual, the manufacturer shall not be held responsible.
This manual does not purport to cover the differences among various units or all problems that may be encountered
in the installation, and impossibly provides guidance for all possibilities in the installation. If you want to get more
information or face any special problem that is not explained in this manual, please contact your localTrane sales
office.
This manual contains a Checklist for Installer to Apply for Commissioning, and you may use the checklist to check
and confirm whether all necessary installation steps are completed. Reading the checklist does not mean reading the
contents of this manual, and you should read this manual carefully before the installation.
Dangers, Warnings and Cautions can be found in different parts throughout this manual. In order to ensure personal
safety and normal operation of the unit, please read these contents carefully and follow them.
Danger: Indicates a potentially hazardous situation which, if ignored, could result in death or serious
injury.
Warning: Indicates a potentially hazardous situation which, if ignored, could result in minor or moderate
injury. It could also be used to alert against unsafe practices.
Caution: Indicates a potential damage to the unit which, if ignored, could result in damage to the unit
or property losses, or possible environmental pollution. It is also be used to provide useful
information.The information might be beneficial to the operation of the unit or extension of the
service life of the unit. But it does not mean that the information is optimal or is directly related
to the improvement of unit operation.
Warning
Lock the power supply and cutoff switch of the air conditioning unit at the disconnected state before installation or
maintenance in order to avoid the personal death or injury caused by electrical shock or contact with moving parts.
All installation procedures of the air conditioning unit must comply with the national, provincial and local regulations.
Refrigerant Warning
Please do not use substandard refrigerants, refrigerant substitutes or refrigerant additives. Improper use method
or use of substandard refrigerants, refrigerant substitutes or refrigerant additives will cause damage to the air
conditioning unit and various safety risks. Please select acceptable refrigerants or call 8008208676 to purchase
acceptable refrigerants. All technical personnel using refrigerants must have the qualifications, be familiar with and
strictly follow the relevant technical requirements, laws and regulations for use, handling, recovery and recycling of
refrigerants.
3
General Information

In order to avoid electrical shock or fire, and other
injuries that may be caused, the following rules should
be kept in mind and strictly adhered to:
• The unit power supply and the electric heating power
supply must be equipped with an electric leakage
protection device, and must be connected to the
grounding wire; otherwise, injury or even death and
other accidents may occur if unprotected.
• The specification of the power wire shall meet the
requirements, otherwise there may be accidents
related to circuit safety.
• Please use a fuse appropriate for the current intensity.
• Do not use any temporary substitute, such as a piece
of wire, which not only may damage the unit itself,
but also may cause fire.
Ok!
Using a piece of wire
may cause fire.
• In order not to exceed the capacity of the power
meter and the protector, please do not simultaneously
switch on the electric heating for the air conditioner
and the electric heating for the water tank.The use of
all types of electrical appliances shall be coordinated.
• Please connect the wires in strict accordance with the
wiring diagrams in this manual. Improper wiring or
artificial change of wiring will result in unit failure and
damage, or endanger personal safety.
• The condensate water from the indoor and outdoor
units must be drained according to the requirements.
Improper drainage of the condensate water may lead
to adverse consequences.
• Never sit on the direct air duct at any time. Sitting on
the direct air duct is not conducive to your health and
safety.
• In order to prevent the relief valve failure due to
calcification, fouling and blockage, the user should
check the valve at least once every month. If the local
water quality is poor, the check interval should be
shortened appropriately. Please promptly replace
the relief valve with a new valve with reliable quality
if blockage, corrosion, manual operation failure or
damage to manual pressure relief handle is found.
• A heating device or other heat source shall not
be arranged under or near the air conditioner.The
machine body may be deformed by heating.
• Objects, such as sticks, sands or gravels, shall be
avoided from entering the air inlet grid or air outlet
grid. Fans running at high speed are very dangerous,
and children should be kept away from them.
• Never block or cover the air inlet grid or air outlet
grid. If such case happens, it may reduce the
performance and affect the normal operation
capacity.
• Whenever you operate the machine, make sure the
air filter net is installed correctly. Otherwise, dirt
may enter the internal running position and cause
damage.
• When cleaning the machine, do not sprinkle water
directly on the machine, which may lead to electric
shock.
• Before maintenance, make sure the unit is powered
off to prevent electric shock.
• When the unit is not used for a long period, you
should cut off the power supply and drain the water
from the water tank. After the water is drained, do
remember to close the drain valve. If the water tank
is under frozen conditions for a long time, it may be
damaged.
Safety Precautions
4

5
Nomenclature
Model: C X A J 0 6 5 5 B
123456789
Additional options: 1 H S D R A
10 11 12 13 14 15
Maintenance code: C X A J 0 6 5 5 B 1 H S D R A
12345678910 11 12 13 14 15
Digit 1 C= Chiller
Digit 2 X=Heat pump G=cooling only
Digit 3 A=air cooled
Digit 4 J= modular type
Digit 5,6,7 Model (cooling capacity)
045 (45kW) 065 (65kW) 130 (130kW)
Digit 8 Voltage/Hertz/Phase
5=380V/50Hz/3PH
Digit 9 Design Sequence
B
Digit 10 Fan speed
1=single speed
Digit 11 Energy efficiency( unit type)
N=standard efficiency H=High efficiency
Digit 12 Controller
S=modular controller (units ≥2) U=unit controller (unit =1)
N=None
Digit 13 Service Sequence
D=4th time
Digit 14 Ambient temperature
R=Standard
Digit 15 Connector option
C=Without 2 pcs. of DN125 rubber connector
D= With 2 pcs. of DN125 rubber connectors
Digit 16 BMS interface
M=Modbus module N= NONE
Digit 17 Refrigerant charged
A=without 045 065 130 B=with
Digit 18 Option
A=None
B=Special option
T=leaving water control (digit 11 = N)

6
2145
1987
຤ ৊຤
613
1521
927
727
2038
DN125
951
2155
ړ႐ةۉ
ටᇵฅྨ.
ሞྼႪമසࡕփൎ܏ۉᇸ,ࣷሰׯჹዘڦ
ሞྼႪമൎ܏໯ᆶڦۉᇸ,Ԉઔᄫևݴ.
ᆶۉླ၃!
injuryordeath.
servicingcancause severe personal
Failuretodisconnect power before
BEFORESERVICING.
INCLUDINGREMOTEDISCONNECTS
DISCONNECTALLELECTRIC POWER
HAZARDOUSVOLTAGE!
য়!!!ߢ
WARNING

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ຕଉ
უ໫A
ܮۨۉୁ
A
܂ገۉୁ
A
ࠀ୲
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KW
A
A
უ໫B
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ૐඐ຤ୁଉm3/h m3/h
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1426
2145
1987
຤ ৊຤
613
2038 1476
2020
1862
1521
2155
DN125
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A
A
უ໫B
ۉᇸ:ۉუ VHz
ೕ୲ ၎ຕ
ሎႹ၌უ૰:຤֨ MPaMPa
ૐ௃֨
ࡽ
ૐඐ຤ୁଉm3/hm3/h
ૐ۳຤ୁଉ
ૐ௃؊࠺ଉkg dB(A)
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50
Dimensions
CXAJ045/065 (N/H type)
CXAJ130 (N/H type)

7
Performance Data
Performance data for Modular Air-cooled Chiller (Heat Pump) Unit (N Type)
Model CXAJ045 CXAJ065 CXAJ130 CGAJ045 CGAJ065 CGAJ130
Cooling
Nominal cooling capacity kW 45 65 130 45 65 130
Input power kW 14.2 20.4 40.8 14.2 20.4 40.8
Operating current A 33.0 41.4 82.8 33.0 41.4 82.8
Heating
Nominal heating capacity kW 47 67 132 - - -
Input power kW 15.0 20.2 40.4 - - -
Operating current A 33.4 41.4 82.8 - - -
Compressor
Type Hermetically sealed scroll compressor
Quantity 只22422 4
Nominal cooling power kW 6.1 9.2 9.2 6.1 9.2 9.2
Nominal cooling current A 13.8 18 18.0 13.8 18 18
Nominal heating power kW 6.5 9.1 9.1 - - -
Nominal heating current A 14 18 18.0 - - -
Refrigerant Type R410A
Charge kg 13 14.3 15*2 13 14.3 15*2
Water side
Type of heat exchanger High efficient shell and tube heat exchanger
Water flow CMH 7. 74 11.2 22.4 7. 7 4 11. 2 22.4
pressure loss kPa 40 40 68 40 40 68
Water pipe flange mm DN125 DN125 DN125 DN125 DN125 DN125
Air side
Type of heat exchanger High efficient fin type heat exchanger
Quantity of fans Piece 2 2 4 2 2 4
Rated power of fan kW 1.0 1.0 1.0 1.0 1.0 1.0
Rated current of fan A 2.7 2.7 2.7 2.7 2.7 2.7
Fan diameter mm 710.0 710.0 710.0 710.0 710.0 710.0
Fan speed RPM 710 710 920 710 710 920
Fan air volume CMH 12000 12000 12700 12000 12000 12700
Unit
Power supply V/PH/HZ 380/3N~/50
Noise dB(A) 68.5 69 69.6 68.5 69 69.6
Net weight kg 700 730 1320 700 730 1320
1. The refrigeration capacity is measured in the conditions of water inlet at 12℃, water outlet at 7℃and air inlet at the
ambient temperature of 35℃.
2. The heating capacity is measured in the conditions of water inlet at 40℃, water outlet at 45℃and air inlet at the
ambient dry bulb temperature of 7℃and the wet bulb temperature of 6℃.
3. CXAJ/CGAJ045 unit shall conform to the standard GB/T 18430.2-2008; CXAJ/CGAJ065/130 unit shall conform to the
standard GB/T 18430.1-2007.

8
TecŠical ParameterTable for Modular Air-cooled Chiller (Heat Pump) Unit (HType)
Model CXAJ045 CXAJ065 CXAJ130 CGAJ045 CGAJ065 CGAJ130
Cooling
Nominal cooling capacity kW 45 65 130 45 65 130
Input power kW 14.2 19.2 38.8 14.2 19.2 38.8
Operating current A 33.0 37.2 75.2 33.0 37.2 75.2
Heating
Nominal heating capacity kW 47 67 132 - - -
Input power kW 15.0 19.4 39.2 - - -
Operating current A 33.4 41.4 82.8 - - -
Compressor
Type Hermetically sealed scroll compressor
Quantity 只22422 4
Nominal cooling power kW 6.1 8.6 8.7 6.1 8.6 8.7
Nominal cooling current A 13.8 15.9 16.1 13.8 15.9 16.1
Nominal heating power kW 6.5 8.7 8.8 - - -
Nominal heating current A 14 16.1 16.3 - - -
Refrigerant Type R410A
Charge kg 13 15 16*2 13 15 16*2
Water side
Type of heat exchanger High efficient shell and tube heat exchanger
Water flow CMH 7. 74 11.2 22.4 7. 7 4 11. 2 22.4
pressure loss kPa 41 60 75 46 60 75
Water pipe flange mm DN125 DN125 DN125 DN125 DN125 DN125
Air side
Type of heat exchanger High efficient fin type heat exchanger
Quantity of fans Piece 2 2 4 2 2 4
Rated power of fan kW 1.0 1.0 1.0 1.0 1.0 1.0
Rated current of fan A 2.7 2.7 2.7 2.7 2.7 2.7
Fan diameter mm 710.0 710.0 710.0 710.0 710.0 710.0
Fan speed RPM 920 920 920 920 920 920
Fan air volume CMH 12000 12000 12700 12000 12000 12700
Unit
Power supply V/PH/HZ 380/3N~/50
Noise dB(A) 68.5 69 69.6 68.5 69 69.6
Net weight kg 730 780 1350 725 775 1340
1. The refrigeration capacity is measured in the conditions of water inlet at 12℃, water outlet at 7℃and air inlet at the
ambient temperature of 35℃.
2. The heating capacity is measured in the conditions of water inlet at 40℃, water outlet at 45℃and air inlet at the
ambient dry bulb temperature of 7℃and the wet bulb temperature of 6℃.
3. CXAJ/CGAJ045 unit shall conform to the standard GB/T 18430.2-2008; CXAJ/CGAJ065/130 unit shall conform to the
standard GB/T 18430.1-2007.
Performance Data

9
Unit Installation
Key Installation Points
Acceptance
When receiving the unit, please carefully check whether the unit is damaged in the transport. If
any, please record it in the delivery note and notify in written form within 72 hours. Notify the
final carrier of the petition in written form within 72 hours, and simultaneously inform the local
Trane sales office. Please thoroughly inspect the unit within 7 days after arrival of the goods. If
any damage is found, please immediately notify the carrier and the localTrane sales office.
Inspect whether the nameplate contents of the unit are correct and whether the operating power
supply is consistent with that on the nameplate of each component.The maximum deviation of
the supply voltage shall not be more than 10%.
Hoisting
Please use a forklift or crane with proper tonnage to handle this unit to its installation location.
Hoisting method:
Table of External Dimensions and Weight Parameters
Model CXAJ045 CGAJ045 CXAJ065 CGAJ065 CXAJ130 CGAJ130
External Dimensions (mm) 2145*1000*2155 2145*1000*2155 2145*2020*2155
Weight of NType 700 700 730 730 1320 1320
Weight of HType 730 725 780 775 1350 1340
Installation location
• The unit must be installed on a flat and level plane;
• It is better to install the shockproof rubber cushion, which is arranged between the host unit
and its load to absorb vibration;
• In the installation, the drainage, ventilation and maintenance space as well as others shall
be considered. Refer to the installation space diagram for the recommended minimum
maintenance space;
• It is necessary to consider the bearing capacity of the building in the installation to arrange
the unit base

10
Unit Installation
AIR OUT
AIR IN
AIR IN
AIR IN
SERVICE
SPACE
≥1
.2M
≥1.2M ≥1.2M
≥1
.2M
610 mm
য়ߢ
ටᇵฅྨ.
ሞྼႪമසࡕփൎ܏ۉᇸ,ࣷሰׯჹዘڦ
ሞྼႪമൎ܏໯ᆶڦۉᇸ,Ԉઔᄫևݴ.
ᆶۉླ၃!
injuryordeath.
servicingcancausesevere personal
Failuretodisconnectpower before
BEFORESERVICING.
INCLUDINGREMOTEDISCONNECTS
DISCONNECTALLELECTRICPOWER
HAZARDOUSVOLTAGE!
WARNING
য়ߢ
ටᇵฅྨ.
ሞྼႪമසࡕփൎ܏ۉᇸ,ࣷሰׯჹዘڦ
ሞྼႪമൎ܏໯ᆶڦۉᇸ,Ԉઔᄫևݴ.
ᆶۉླ၃!
injuryordeath.
servicingcancausesevere personal
Failuretodisconnectpower before
BEFORESERVICING.
INCLUDINGREMOTEDISCONNECTS
DISCONNECTALLELECTRICPOWER
HAZARDOUSVOLTAGE!
WARNING
Installation Space Diagram
PUMP
     
WA
TER OUTLET
WA
TER INLET
MODULAR
GROUP C
MODULAR
GROUP B
MODULAR
GROUP A ≥1.5M ≥1.5M
Multi-module Combination Diagram (Reverse Return Connection)
Note: each CXAJ/CGAJ045/065 multi-module combination includes 8 units at most, and each CXAJ/CGAJ130 multi-
module combination includes 4 units at most. Direct return connection is not allowed.