Chigo CS-25V1A-H1; CS-35V1A-E2; CS-50V9A-S; CS-70V9A-T Service Manual

Dc inverter split air-condition unit

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DC Inverter Split Air-Condition Unit

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Min MIn Soe

June 19, 2025

Can I get the detail specification file or Catalogue file for Chigo Aircon CS 35 1C 170N?

Summary of Contents for Chigo CS-25V1A-H1; CS-35V1A-E2; CS-50V9A-S; CS-70V9A-T

Page 1 SERVICE MANUAL DC Inverter Split Air-Condition Unit...
Page 2: Table Of Contents
Table of Contents Air conditioning unit parameters ..................1-1 Units operating working conditions and temperature range ........... 2-1 Units characteristic ......................3-1 Indoor and outdoor units size .................... 4-1 Indoor and outdoor unit explosion diagram and spare parts list ........5-1 The analysis of indoor malfunction code ................
Page 3: Air Conditioning Unit Parameters
1、Air conditioning unit parameters...
Page 4: Units Operating Working Conditions And Temperature Range
2、Units operating working conditions and temperature range Rated conditions 2 . 1 The Standard condition is in accordance with ANSI/AHAM RAC-1-2003, and UL 484. Cooling: Indoor: 80 FDB 67 F WB Outdoor: 95 F DB 75 F WB Heating: Indoor: 70 F DB 60 F WB Outdoor: 47...
Page 5: Units Characteristic
3、Units characteristic ☆ Wide operating range with outdoor air temperatures up to -15 ℃ in cooling for the Heat pump ☆ High efficiency and energy saving ☆ Auto-restart after a power supply blackout ☆ Single-phase power supply thanks to DC inverter technology low consumption ☆...
Page 7 In fact , the new CS is a high efficiency DC inverter technology outdoor unit，its SEER is as high as 21 for the 12K unit。 when compared to SEER13 ， it can save electricity 38℅ in a year. The curve diagram of the compressor energy consumption COP (W/W)/2ND...
Page 8 The curve diagram of the compressor condensing pressure...
Page 9 Cooling Capacity (BTU)---Run Model,230/115V,Indoor fan at high speed INDOOR ENTERING AIR DB/WB TEMPERATURE [ OUTDOOR ENTERING AIR DB DATA 72/59 75/63 81/66 84/70 90/73 TEMPERATURE[ 80 - 110 % of nominal 14~68 80 - 105 % of nominal (protection range) 25 - 50 % of nominal 11616 12336...
Page 10 Heating Capacity (KW)---Run Model,230V,Indoor fan at high speed ID COIL ENTERING AIR DB TEMPERATURE [ OD COILENTERING AIR DB/WB TEM DATA PERATU RE[ 8960 8260 7700 0.66 0.73 0.80 9940 9240 8680 14/10 0.80 0.87 0.95 10640 10080 9380 20/18 0.91 0.97 1.04...
Page 11 Capacity Correction Factors Cooling Capacity Ratio Vs. Outdoor Temperature Cooling Capacity Correction Factor 90/73 84/70 81/66 75/63 72/59 Outdoor Temp.(deg F) Heating Capacity Ratio Vs. Outdoor Temperature Heating Capacity Correction Factor Outdoor Temp.(deg F)
Page 12 Capacity Correction Factor Due to Tubing Length (One Way) Cooling Heating...
Page 13 Pressure Curve Suction Pressure Curve Discharge Pressure Curve...
Page 14 E L E C T R I C A L D ATA Model CS-25V1A-H1 Power Supply 1 PH, 115 VAC,60Hz Connected to Outdoor Maximum Current 9.3A Inrush Current Starting Current Circuit breaker Power supply wiring - No. x cross section 1 X 3 X 2.5 mm 2 X 4 X 1 mm Interconnecting cable - No.
Page 15: Indoor And Outdoor Units Size
4、Indoor and outdoor units size 4.1 outdoor Unit: CS-25V1A-H1 4.2 outdoor Unit: CS-35V1A-E2...
Page 16 4．3 outdoor Unit: CS-50V9A-S 4.4 outdoor Unit: CS-70V9A-T...
Page 17 4.5（Indoor unit）figure、mounting dimensions A unit：mm Size symbol Machine body size mounting dimensions Indoor model CS-25V1A-M CS-35V1A-P 257.5 257.5 CS-50V9A-S（W） 1068(1080) 325(305) 240(214) 700(696) 305(305) 315(315) CS-70V9A-Q 1225 311.5 311.5...
Page 18: Indoor And Outdoor Unit Explosion Diagram And Spare Parts List
5 、 Indoor and outdoor unit explosion diagram and spare parts list 5.1、The explosion diagram and spare parts list for CS-25V1A-H1...
Page 20 5.2 、The explosion diagram and spare parts list for CS-25V1A-M81A...
Page 22 5.3、The explosion diagram and spare parts list for CS-35V1A-E2...
Page 24 5.4、The explosion diagram and spare parts list for CS-35V1A-P81A...
Page 26 5.5、The explosion diagram and spare parts list for CS-50V9A-S...
Page 28 5.6、The explosion diagram and spare parts list for CS-50V9A-S81A...
Page 30 5.7 The explosion diagram and spare parts list for CS-70V9A-T...
Page 32 5.8、The explosion diagram and spare parts list for CS-50V9A-S...
Page 34: The Analysis Of Indoor Malfunction Code
6、 The analysis of indoor malfunction code （internal wiring get loose, which will cause malfunction.） Ⅰ、indoor detailed malfunction 1.when indoor unit live wire is disconnected，its lamp panel can’t display. Live wire is off。 2.when the transformer’s secondary and primary disconnect or indoor fuse is off，the indoor unit lamp panel can’t display.
Page 35 Indoor unit fuse is off. The indoor unit fuse The condition that the lamp panel can’t display。 3.（1）when the indoor null line is off，the system displays F1 code 。（2）when indoor communication wire is off，the system also displays F1 code 。 The inserted slice to null line The indoor unit null line is off。...
Page 36 （2） the indoor communication wire is off. Communication wire socket. the indoor lamp panel displays F1 code. 4. when indoor fan mainline or feedback wire is off，the indoor lamp panel displays F4 code. After directly insert it well，To restart the unit to recover normal . Indoor fan mainline is off。...
Page 37 indoor fan feedback wire is off。 the relevant socket with indoor feedback wire 。 The lamp panel displays F4 code. 、 F 5.when indoor sensor has the problem, the lamp will display F code. When indoor coil outlet , inlet and middle temperature sensor appear malfunction, the lamp panel displays F3 code;...
Page 38 The lamp panel alternately displays F2,F3 fault code. 6.when outdoor temperature sensor is off or loose contact，the indoor lamp panel displays F6 fault code. the relevant socket of outdoor temp. sensor. The outdoor temperature sensor is off or loose contact.
Page 39 The indoor lamp panel displays F6 fault code. 7.when the system appears mode conflict，the indoor lamp panel shows d1 code. the indoor lamp panel shows d1 code. 8.when the system is in the defrosting condition，The lamp panel displays dF code. The lamp panel displays dF code.
Page 40 Ⅱ．The outdoor electrical control fault code of the America 12K model . 1.the outdoor module temperature sensor is off or loose contact，the lamp panel shows F6 code. the outdoor module temperature sensor is off or loose contact . the relevant socket with the outdoor module temperature sensor plug .
Page 41 The lamp panel shows F7code. 3.the outdoor module drive wire is off ，the lamp panel shows FC code . The outdoor module drive wire is off . The matching socket with the outdoor module drive wire The matching socket with the outdoor module drive wire .
Page 42 The lamp panel shows FC code . ， the lamp panel shoes F1 code . 4、 the wave filtering board and mainboard power wire is off or loose contact wave filtering board and mainboard power wire is off or loose contact The matching socket with the wave filtering board and mainboard power wire...
Page 43 5. the evaporator middle temperature and condenser middle temperature sensor is off ，the lamp panel displays P8 code . the evaporator middle temperature and condenser middle temperature sensor is the lamp panel displays P8 code...
Page 44 The 67 style indoor lamp panel The timing lamp The turbo lamp The running lamp The indoor unit faulty display: Faulty contents Trouble display The running lamp lightens all the time，the turbo lamp Communication fault lightens 2 times ，and then extinguish 2 seconds。 The running lamp lightens all the time，the turbo lamp Indoor fan fault lightens 5 times，and then extinguish 2 seconds。...
Page 45 The 85 style indoor lamp panel The timing lamp The sleeping lamp The running lamp Faulty contents Trouble display The timing lamp lightens all the time，the sleeping lamp Communication fault lightens 2 times ，and then extinguish 2 seconds。 The timing lamp lightens all the time，the sleeping lamp Indoor fan fault lightens 5 times ，and then extinguish 2 seconds。...
Page 46: The Analysis Of The Complete Units Malfunction Code
7、The analysis of the complete units malfunction code The faulty cause：：F1 （） Malfunction code 1、 communications issue 1, hardware fault for PFC 2, the communication wire is broken off or connected wrongly；、 3、the power ground wire isn’t connected reliably；、 4、the indoor PCB’s hardware has been damaged；...
Page 47 Fig 1 check the voltage between the point of P and N whether is about 300V（P is anode ， N is cathode ）， If the voltage between P and N is 0 V，means that PFC is damaged，please change PFC. Red wire is Blue wire is This board is...
Page 48 Note 7：there are two kinds of connecting craftwork for the indoor and outdoor connecting cable，Fig. 8 shows the craftwork before 2007，and Fig. 9 shows the craftwork after 2007. Fig. indoor outdoor connecting cable’s craftwork before 2007 Fig. 9 the indoor and outdoor connecting cable’s craftwork after 2007 。...
Page 49 The voltage stabilizing diode ZD1 、 ZD2 reference value : Forward resistance : 713Ω reverse resistance: ∞ The voltage of the cross flow fan feedback end will be increased gradually from 0 to +2.4VDC when turning on the indoor unit . PTC1 resistance value：1．02KΩ...
Page 50 aulty cause： 1、 maybe the indoor temp sensor’s bnc connector plugs is loose Fig. 11：the outdoor PCB or contact ill; 2、 the sensor is bad or the down-lead is Malfunction code：F2 （the indoor temp sensor fault） 2， circuit-break、circuit－short 3、 the indoor PCB’s hardware has been Turn off the power damaged Take out the temperature sensor from the...
Page 51 The faulty cause： 1、the fan motor is blocked or turns abnormally； 2、the motor wire is loose or contacts Malfunction code：F4 （the indoor fan motor fault） 4， 3、the indoor fan motor has been damaged 4、the indoor PCB is bad Shut off the power 1.
Page 52 Faulty cause：1、maybe the indoor coil temp sensor’s BNC connector plugs is 5,Malfunction code：F6 （the outdoor temp sensor fault） loose or contact ill; 2、the sensor is bad or the down-lead is circuit-break、circuit－short 3、the indoor PCB’s hardware has been Turn off the power damaged Take out the temperature sensor from outdoor PCB.
Page 53 Test the wire controller indoor ground wire PCB is bad， Check whether the light of voltage whether it is then change the wire controller is bright +5VDC. Fig. 13 The wire controller’s hardware is bad， please Check the indoor PCB、 diode、 triode The indoor PCB is bad，...
Page 54 The dynatron Q3 reference value: be pole :The positive pole resistance：660Ω the negative pole resistance：961Ω； bc pole :The positive pole resistance：659Ω the negative pole resistance :1439Ω The clamping diode’s parameter: VD15 The positive pole resistance：389Ωthe negative pole resistance： 392Ω VD16 The positive pole resistance：497Ωthe negative pole resistance： 1012Ω...
Page 55 Check whether the compressor’s winding value normal （ refer SNYO The compressor is bad，then C-6RZ146H1A winding value: T-R 0.452Ω change it. T-S0.452Ω R-S0.452Ω） Change IPM board, check The IPM board is bad, change it. whether it is normal The faulty cause： Change PFC board 。...
Page 56 Check the connection position between motor and outdoor PCB whether is loose ， Change motherboard of outdoor (Please insert and pull out the terminal over and PCB if still can’t run after using that over, check whether the motor is normal) method.
Page 57 1、Change the temp sensor； 1、check whether module temp sensor’resistance is 2 、 Firm the module and normal (the normal value range:1～40KΩ)； radiator； 2、 check whether the module and radiator are firm； 3、Append anew the disperse 3、 check whether the disperse heat silica gel is short heat silica gel；...
Page 58 The faulty cause 1、 the high and low pressure valve are closed 2、 the refrigerant leaks from the A/C system 3、 the indoor and outdoor pipe temp 11、The malfunction code： sensor are loose or hang in the air. P8 （lack the refrigerant or reverse valve fault） 4、...
Page 59 Fig. 16、Please daub the bubble to four terminals, then observe them for five minutes! If there are some bubbles that grow slowly and broke around the terminal,. it shows the leakage Warning ： please connecting the indoor and outdoor units according to the correct installing method，Fig.
Page 60 Fig. 17、the bell-mouth should aim at the valve port Fig. 18、 the bell-mouth should aim at the valve port...
Page 61 Fig. 19、screw down the nut gradually by hand Fig. 20、 please screw the nut until can’t move by hand， refer to the Figure’s position。If not move when screwing the nut about 3~4 circles by hand, it is possible that the bell-mouth doesn’t aim at the valve port ，and then operate it again from scratch 。...
Page 62 Fig. 21、Next please screw the nut by the spanner. The following Figures are the wrong operation. such as Fig. 22、 Fig. 23 Fig. 22、screw the nut to this place by hand, until it can’t be moved ; then force to screw the nut by the spanner。...
Page 63 Fig. 23、forcing to screw the nut by spanner results in the rupture of the bell-mouth. The spring gasket Fig. 24 the compressor’s discharge temp Fig. 25 the compressor’s suction temp sensor (no pipe No.) locating on the sensor （pipe number： 4） locating on the compressor’s outlet gas about 5 CM Shock Absorbers piece above 5CM.
Page 64 Fig.28.3 indoor evaporator’s inlet temp sensor (pipe number: 2) The spring gasket Fig. 28.1 indoor Fig. 28.2 indoor Fig. indoor evaporator’s middle evaporator’s inlet temp ambient temp sensor temp sensor (pipe sensor (pipe number: 4) （pipe number：1） number: 3) Note: Apart from the ambient temperature sensor, all sensors must be equipped with spring washer, Fig.
Page 65 The faulty cause： 1， The motor is bad or there is trouble in the indoor PCB 2， The outdoor PCB is bad 12，The malfunction code: FF (The outdoor unit fault) 3， Motor is bad Turn off the power Check the resistance value of the motor each port are normal. The motor is bad or there is trouble The reference resistance value of motor port.(Vm-GND ∞、...
Page 66 The faulty cause: 1、The start-up Moment doesn’t reach the requirement when the compressor runs firstly. 2 、 The contacting wire of the 13, The malfunction code: compressor is connected wrongly; FC （outdoor unit drive fault, start compressor failure） 3、The wire connecting the IPM board to the PCB is loose Turn on the unit 4、...

This manual is also suitable for:

Cs-35v1a-e2 Cs-50v9a-s Cs-70v9a-t