Chigo CS-25C3A-V85AY1 Service Manual

1 Service manual Room airconditioner

10 5.2 Heat pump mode 6. Specifications (see spec sheet)

11 7.Wiring diagrams 7.1Indoor unit

12

13

14

15 7.2 Outdoor unit

16 8.PCB principle chart 8.1、38 section of crystal color ordinary schematic diagram 1 2 3 4 5 6 7 8ABCD87654321DCBA佛山市中格威电 子 有 限 公 司日 期批 准审 核标

17 1 2 3 4 5 6 7 8ABCD87654321DCBA佛山市中格威电 子 有 限 公 司日 期批 准审 核标 准 化绘 图设 计产 品 名 称编号D1 -D4E14 70 uF/3 5VFU SE2 50 V/3.1 5AS1BC1104C2104Vin1GND2Vo

18 1 2 3 4 5 6 7 8ABCD87654321DCBA佛山市中格威电 子 有 限 公 司日 期批 准审 核标 准 化绘 图设 计产 品 名 称编号VALVE换向阀EFAN外风机CFLOMI DHINCF I 52 CB压机X4BX3BX2BX1B52 X6 B电加热X

19 9. PCB function: NOTE: Ts is the set temperature, Tr is indoor room temperature, TP1 is indoor coil pipe temperature, TP2 is outdoor coil pipe

2 Table of Contents 1、Summary ………………………………………………………………………………………………………………3 2、Model explaining …………………………………………………………………………………………………….4 3、Installation

20 Cooling ● Start up the compressor: when the room temperature is more than Ts+1℃, compressor → start-up ● Shut down the compressor: when t

21 1¡ ãC7¡ ãCTr-10¡ ãCcompr essorout door bl ower f an door bl ower f an compr essordoor bl ower f an Tr Heating (only applicable to hea

22 compressor → shutdown ● The electric heating start-up in the heating mode shall meet the following conditions: ① start up the compressor and

23 +3-1COMPRESSORst ar t - upst ar t - upout door bl ower f anst ar t - up st ar t - upst ar t - upst ar t - up bl ower f anl ower sp

24 compr essordoor bl ower f an Tr36 Defrost (only applicable to the heating mode) 1. the intelligent defrost In the heating mode,

25 ≤3 80 （2）end defrost condition(meet one of follows) a、defrost time have fifteen minutes. b、defrost relay turn on；（＞8℃） c、press ON/

26 compr essorout door bl ower f an door bl ower f an TP2TrTrcompr essorout door bl ower f an door bl ower f an TP2

27 out door bl ower f an door bl ower f an TP2defrost time over 15 MIN or TP2 >15¡ãCTrcompr essor Sequence chart in defrosting mode end

28 i ndoor bl ower f an¡ ãC¡ ãCdoor bl ower f anTrshut downshut down shut down shut down shut downshut downshut downshut downshut downshut down

29 mode had set , it doesn’t change by Tr and the default set temperature is 25 ℃. 25Tr2126¡ ãCmode Time on and time off When the time on or

3 1. Summary 1.1 indoor unit Model 38B

30 on state SEC indication display at off state flicker 1/3 SEC anti cold wind 1、 Normal (during heating mode ) 2、It will be removed when the coil

31 the key is to check the evaporator temperature detected by the coil pipe temperature sensor has reached the cooling or heating tempe

32 disconnected, replace or connect the feedback signal wire. 6、Check whether the supply power is phase-lacking or phase opposition. 7、Check whether

33 10. TROUBLE SHOOTING Is CN (Tr sensor connector)connected properly?Is Tr sensor resistance value(5KO at 25? ) normal?Indoor P. C. board is defect

34 Turn off power supply once, and turn it on again.Does compressor continue to operate?Start to operate indoor unit in cooling operation at airflow

35 Compressor does not operate.Turn on power supply.Does compressor delay three minutes by temperature changes or others? Does OPERATION indication

36 Replace P.C. board.Is receiver on indoor unit exposed to direct sunlight? Batteries are exhausted.Press START/STOP button.Is there any thyristor f

37 TroubleIs the power applied to the unit? Check power supply mains or interconnection wiresIs the power normal? check the voltage between L&N o

38 Indoor unit and outdoor unit don’ t operateIndoor and outdoor unit don’ t operatePress emergency key, does the air conditioner running?Replace fu

39

4 2、Model explaining cImprove an ordinal numberDivide the body outdoors box a body codeExternal appearance characteristic codeSeparately the body in

5 3. Attention of installation 3.1 Safety Precaution To prevent injury to the user or other people and property damage, the following instructions

6 Be sure the installation area does not deteriorate with age. If the base collapses, the air conditioner could fall with it, causing property dam

7 There is risk of fire, electric shock, or product damage. Ventilate the product from time to time when operating it together with a stove, etc.

8 Use a soft cloth to clean. Do not use harsh detergents, solvents, etc. There is risk of fire, electric shock, or damage to the plastic parts of

9 Connecting the cables The power cord of connect should be selected according to the following specifications sheet. Grade Unit 7K 9