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Only qualified 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 specific knowledge and training. 

Improperly installed, adjusted or altered equipment by an unqualified pers on 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.

March 2020

SAFETY WARNNING

CG-SVM002A-EN

Confidential and proprietary Trane information

Maintenance Manual

Modular Air-cooled Water Chiller

(Heat Pump)

CXAJ/CGAJ065~130

R410A

Содержание CGAJ065

Страница 1: ...operly installed adjusted or altered equipment by an unqualified pers on could result in death or serious injury When working on the equipment observe all precautions in the literature and on the tags...

Страница 2: ...ction 12 3 1 Cooling System Diagram 12 3 2 Main Components and Function Chart 14 3 3 Unit Appearance and Structure 15 3 4 Control Box Introduction 18 4 Unit Installation Requirements 21 4 1 Outdoor Un...

Страница 3: ...6 4 Adjustment and Judgement of Refrigerant Volume 36 6 5 Judgement of Water Flow in Water System 36 6 6 Non fault Phenomenon 36 7 Fault Handling 37 7 1 Fault Alarm Table 37 7 2 Fault Handling for Ou...

Страница 4: ...failure damage or personal safety When cleaning the unit do not sprinkle water directly on the unit which may cause electric shock Cut off all power supplies before contacting the wiring device Before...

Страница 5: ...nit is not used for a long time please cut off the main power supply of the system to extend the service life of the unit and save electrical energy Do not touch the fins of the heat exchanger Otherwi...

Страница 6: ...ust and water refill in water system Make sure the water temperature meets the operation requirements The air condition water pipeline and hot water pipeline must go through pressure test to ensure th...

Страница 7: ...FF by default if modular control is needed user should set the code on site as needed The Bit1 5 of the switch is used for code address of centralized control Note The modular host of must set to 00 S...

Страница 8: ...changer pipeline at water side is frozen it will be seriously damaged namely the heat exchanger will break or leak Such freezing damage is not covered in warranty therefore user should take anti freez...

Страница 9: ...y Digit 12 Controller S Modular Controller units 2 U Unit Controller unit 1 N None Digit 13 Service Sequence F 6th Time Digit 14 Ambient Temperature R Standard Digit 15 Connector Option A Without 2 pc...

Страница 10: ...9 2 38 0 Rated Heating Power kW 9 5 19 0 Rated Heating Current A 18 5 34 0 Refrigerant Category R410A Charge kg 13 12 5 2 13 12 5 2 Water Side Category of Heat Exchanger High efficiency shell tube hea...

Страница 11: ...2 55 0 98 2 Compressor Category Hermetic scroll No Pieces 2 4 2 4 Rated Cooling Power kW 9 2 9 2 9 2 9 2 Rated Cooling Current A 18 18 18 18 Rated Heating Power kW 9 1 9 1 Rated Heating Current A 18 1...

Страница 12: ...ing System Diagram CXAJ065 System Diagram F N F H Heating Cooling Refrigerant reservoir Fin coil condenser Evaporator Discharge temperature sensor TH6 Discharge temperature sensor TH5 4 way valve Suct...

Страница 13: ...waterTH1 Outlet water TH2 HP1 LP1 EXVA 1 4 way valve COMP A1 COMP A2 HP2 LP2 28 6 COMP B1 COMP B2 HPS1 HPS2 TH3 EXVB 1 TH8 Refrigerant reservoir Refrigerant reservoir Cooling Facing control box left s...

Страница 14: ...ate in the system EXV Control refrigerant flow rate by adjusting opening through pressure or temperature changes Fin coil Heat Exchanger Heat exchange with outdoor air Gas liquid Separator Separate ga...

Страница 15: ...20 Water pan 1 21 Compressor 2 22 Liquid receiver 1 23 Gas liquild separator 1 24 Shell tube HX 1 25 Cover plate of shell tube HX B 2 26 Cover plate of shell tube HX C 4 27 Cover plate A 4 28 Support...

Страница 16: ...r plate of shell tube HX A 2 17 Compressor 4 18 Tube 4 2 19 Support plate of compressor B 1 20 Shock pad 16 21 Suction tube B 1 22 4 ways valve assembly B 1 23 Drier EXV assembly B 1 24 Tube 5 1 25 Wo...

Страница 17: ...15 Suction tube A 1 16 Cover plate of shell tube HX B 2 17 Cover plate C 4 18 Water pan 1 19 Compressor 2 20 Suction tube B 1 21 Cover plate of shell tube HX A 1 22 Support plate of compressor B 1 23...

Страница 18: ...al block 1 18 Snap busing A 9 19 Snap busing B 1 R A S B T C Normal Phase reveres Phase loss 98 14 95 11 96 12 O U volt P0010 CN12 U1 CN15 CN14 CN11 CN16 OUT14 OUT13 OUT1 2 OUT12 OUT11 OUT10 OUT9 OUT8...

Страница 19: ...xx TH12 TH11 TH10 TH9 TH8 TH7 TH6 TH5 TH4 TH3 TH2 TH1 OUT1 1 EXVA 1 EXVA 2 EXVB 1 EXVB 2 R A S B T C Normal Phase reveres Phase loss 98 14 95 11 96 12 O U volt MFA MFB MCA 1 MCB 1 MCA 2 MCB 2 1 2 3 4...

Страница 20: ...xx V0xx TH12 TH11 TH10 TH9 TH8 TH7 TH6 TH5 TH4 TH3 TH2 TH1 OUT1 1 EXVA 1 EXVA 2 EXVB 1 EXVB 2 R A S B T C Normal Phase reveres Phase loss 98 14 95 11 96 12 O U volt MFA MFB OVCA 1 OVCB 1 1 2 3 4 5 6 7...

Страница 21: ...on and space for maintenance and repair The unit should be installed on a level surface with reliable load bearing capacity please refer to the parameter table for unit weight and outline dimensions I...

Страница 22: ...e inlet and outlet water pipelines Install filter in the inlet pipeline of the evaporator the mesh number of the filter should be 40 Install water discharge value and pipeline at the bottom of water p...

Страница 23: ...ly connected to reduce the vibration transmission The pipes shall be connected through welding anges and the secondary galvanization or antiseptic treatment shall be performed on the welding seam and...

Страница 24: ...on the cold water side of the unit Two way three way valve installation the two way valve or three way solenoid valve shall be installed at the outlet of the fan coil to avoid complaints of waterway v...

Страница 25: ...aving water temperature sensor TH12 if the units are installed in modular mode a place for installing the temperature sensor must be reserved on the main outlet pipe of the water system so as to insta...

Страница 26: ...nits shall be safely grounded Improper grounding may cause electric shock Please ensure that the earth wire is firmly connected to the grounding terminal and grounding electrode of the unit 9 There is...

Страница 27: ...supply is connected with the communication line through the terminal The modular controller is provided with a 220VAC 12VDC 500mA DC power accessory Optimal operating temperature of modular controller...

Страница 28: ...P1 OV FAN M FAN2 H FAN1 RUN IN AL OUT AL IN RUN OUT ADC_OD_CO1 FLOW OVHT HP2 FREZ LP2 C H N COM EN SAVE TH4 CN6 CN2 TH2 TH1 TH3 SW2 A G B A CN4 TH5 TH6 4WV1 CN1 SW1 COMP1 COMP2 HT EV1 A HAT 4WV2 PUMP...

Страница 29: ...the communication line The shielded twisted pair must be connected hand in hand and no star connection shall be allowed namely 1 is connected to 2 2 is connected to 3 and 3 is connected to 4 If 1 is c...

Страница 30: ...A U N U1 Model Table Model 65 F N 22 U1 65 F H 27 U1 TH4 TH9 Short Short Power Compressor Location Description Pump Overload Switch close Connect 26 and U1 Flow Switch Connect 25 and U1 Code Switch Se...

Страница 31: ...Connect 26 and U1 Flow Switch Connect 25 and U1 Code Switch Seting reference IOM Reserved control signal for controlling water pump and heating EN SAVE AL On site wiring Factory wiring FAN PUMP HT EV...

Страница 32: ...H TH4 TH9 Compressor Location Description Pump Overload Switch close Connect 26 and U1 Flow Switch Connect 25 and U1 Code Switch Seting reference IOM Reserved control signal for controlling water pump...

Страница 33: ...s Starting order of the unit Cooling mode 1 Starting process for cooling mode Select cooling mode start the unit display water temperature the electronic expansion valve reaches initial opening after...

Страница 34: ...Do not press frequently 2 Mode selection Includeing cooling mode and heating mode Mode should be selected a fter shut down 3 Value browse Press rstly then press to browse the value 4 Leaving water te...

Страница 35: ...opening value in defrost 480step 100step 10step 48 480step 35 Temperature difference of electric heater start 20 0 1 10 36 Temperature difference of electric heater stop 20 0 1 6 45 Mandatory defrost...

Страница 36: ...s please drain the pipeline 6 6 Non fault Phenomenon Phenomenon Fault Display Reason The outdoor fan does not operate during heating None Defrosting Part of the fan does not operate None The heating a...

Страница 37: ...system A 78 78 Switch off the compressor of the system A If this fault occurs twice switch off and give an alarm 26 CN14 Low pressure overrun of system B 7A 7A Switch off the compressor of the system...

Страница 38: ...displays corresponding alarm code Fault reason The interface is loose open short of the sensor the main control interface is disconnected or short circuited Fault handling process Error Error Yes Yes...

Страница 39: ...cation failure between modules unable to start the unit Fault handling process In addition if the input voltage of the transformer provided with PCB is too low it will cause low voltage in PCB and the...

Страница 40: ...volume is correct Check if the radiator is blocked or inefficient Check if the system is blocked or there is any refrigerant leakage Refill refrigerant or clean the radiator Check if the EEV is closed...

Страница 41: ...the required extent Check if the suction gas superheat is too high Replace the electronic expansion value or refresh the control program Error Error Error Error Error Error Error Error System overcur...

Страница 42: ...ion See P6 for the ambient temperature range for the reasonable operation of the unit If the range is exceeded before starting the unit the unit will not be able to be started and a fault code will be...

Страница 43: ...up of coil 2 Common reasons a There is air and moisture in the cooling system which affects the coil insulation and leads to long term operation under high temperature and high pressure and consequent...

Страница 44: ...t on electronic expansion valve body Connect to main board interface Electronic expansion valve coil Electronic expansion valve body Copper pipe interface E Compressor wear Compressor wear is usually...

Страница 45: ...ion and repair process of electronic expansion valve If there is a click sound after connecting power Check if the coil is properly fit to the body Check if the conductors are properly connected with...

Страница 46: ...f throttle is normal and if the evaporating temperature is normal during normal operation of the unit Check if the temperature sensor and system pressureare normal and if the installation is correct C...

Страница 47: ...he cooling system before installation to prevent foreign objects from jamming the valve body again E Notes for use of electronic expansion valve a Do not use valve body and coil with different brands...

Страница 48: ...fault for pressure switch is normally open or normally close which means the pressure is always in open or close status and does not respond to pressure changes no matter the system pressure If you u...

Страница 49: ...nected with outdoor unit and the other two pipes are also connected to create a cooling cycle When the solenoid coil is on the magnetic effect generated by the solenoid coil will overcome the force of...

Страница 50: ...s insufficient pressure difference needed for direction change h The circulation volume of refrigerant in compressor does not meet the requirement for direction change of four way valve i The necessar...

Страница 51: ...The controller will display H1 System A or H2 System B otherwise the system will continue running The disconnecting value is 4 4Mpa the reconnect value is below 3 5Mpa In case of this alarm please che...

Страница 52: ...ped When the fault occurs the Cooling plate type heat exchanger anti freezing locking time will be triggered when the time is over and the discharge temperature Cooling anti freezing stopping temperat...

Страница 53: ...tarted then the remained compressor in the system where the first compressor is picked will be selected as the third compressor to be started the final compressor will be the fourth to be started The...

Страница 54: ...pressure switch trips or the discharge water temperature Cooling anti freezing starting temperature fan coil plate type heat exchanger 2 the system will switch from defrosting to heating mode The low...

Страница 55: ...1 16 55 63 58 2 60 89 35 6 797 6 916 7 036 86 1 333 1 4 1 47 15 53 07 55 47 57 98 36 6 554 6 673 6 794 87 1 296 1 362 1 431 14 50 65 52 89 55 22 37 6 321 6 441 6 562 88 1 26 1 325 1 393 13 48 35 50 44...

Страница 56: ...09 1 323 3 338 353 2 60 23 64 24 8 26 01 121 3 352 3 654 3 982 0 307 9 321 6 335 7 61 22 79 23 92 25 1 122 3 261 3 556 3 877 1 293 3 306 1 319 2 62 21 97 23 08 24 23 123 3 172 3 461 3 775 2 279 5 291...

Страница 57: ...For more information please visit trane com or tranetechnologies com Trane has a policy of continuous product and product data improvement and reserves the right to change design and specifications wi...

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