Sanyo CH3632 - Manuals

1 2 3 4 – 19 – SM830076 1. Specifications 1-4 Dimensional Data (A) Indoor Unit: XHS2432 33-27/32 3-15/16 29-29/32 19-11/16 19-11/16 11-23/32 1-3/16 8-1/16 6-1/2 1/2 1/2 1-7/8 33-27/32 32-9/32 (Ceiling opening) 32-9/32 (Ceiling opening) 28-3/4 (Suspention bolt pitch) Grille center 23-7/32 (Suspention...

1 2 3 4 – 23 – SM830076 1. Specifications 1-5 Refrigerant Flow Diagram Outdoor Unit: CH2432 Indoor Unit: XHS2432 1-6 Operating Range Temperature Indoor Air Intake Outdoor Air Intake Cooling Maximum 95 ° F DB, 71 ° F WB 115 ° F DB Minimum 67 ° F DB, 57 ° F WB 23 ° F DB Heating Maximum 80 ° F DB, 67 °...

1. Specifications 1 2 3 4 Section – 25 – SM830076 2. Processes and functions 2. PROCESSES AND FUNCTIONS 2-1 Room Temperature Control .......................................................................... 26(A) Cooling .................................................................................

1 2 3 4 Section – 26 – SM830076 2. Processes and functions Fig. 1 Chart Summary and Explanations ❑ Once the compressor starts, it keeps running for 5 minutes. ❑ Once the compressor stops, it will not start running again for 3 minutes. ❑ If you change the operation mode (HEAT, COOL, or FAN) during th...

1. Specifications 1 2 3 4 Section – 27 – SM830076 2. Processes and functions (B) Heating Chart Summary and Explanations ❑ Once the compressor starts, it keeps running for 5 minutes. ❑ Once the compressor stops, it will not start running again for 3 minutes. ❑ If you change the operation mode (HEAT, ...

1. Specifications 1 2 3 4 Section – 29 – SM830076 2. Processes and functions Fig. 4 2-3 Automatic Fan Speed (Indoor Unit) (A) Cooling By pressing the FAN SPEED button on the remote controller, the fan speed can be set atone of four steps: AUTO., HI., MED., or LO. When set at AUTO. the indoor unit fa...

1 2 3 4 Section – 30 – SM830076 2. Processes and functions 2-4 Outdoor Fan Speed Control To optimize the performance of air conditioner, the outdoor fan speed is selectedautomatically according to the outdoor temperature. ❑ Note that in both Cooling and Heating modes, the fan comes on at first at hi...

1. Specifications 1 2 3 4 Section – 33 – SM830076 2. Processes and functions Fig. 10 2-7 Overload Protection (Heating) This function prevents the air conditioner from overloading. Chart Explanations and notes ❑ This chart shows how the outdoor fan speed and the electronic refrigerant control valvere...

1 2 3 4 Section – 34 – SM830076 2. Processes and functions 2-8 Discharge Temperature Control (Cooling and Heating) This function prevents the compressor motor from burnout by overheating. Fig. 11 Chart Summary and Explanations ❑ Discharge temperature is sensed by TH8 (discharge gas sensor). ❑ When t...

1. Specifications 1 2 3 4 Section – 35 – SM830076 2. Processes and functions 2-9 Auto. Mode for Automatic Heating/Cooling Switching ❑ When the AUTO mode is selected, the microprocessor calculates the differencebetween the set temperature and the room temperature, and automatically switchesto the COO...

1 2 3 4 Section – 36 – SM830076 2. Processes and functions Chart summary and Explanations ❑ This chart shows how the Operation Mode (COOLING or HEATING) is determined by themicroprocessor taking the room temperature into consideration. It also shows thetemperature points at which the cooling or heat...

1. Specifications 1 2 3 4 Section – 39 – SM830076 2. Processes and functions (B) AUTO Control Mode When the Compressor has stopped while in AUTO mode, the 4-way valve switches on(heating) or off (cooling) within 1 minute according to the following conditions: Fig. 16 2-12 Automatic Restart after Pow...

1 2 3 4 Section – 40 – SM830076 2. Processes and functions 2-13 Electronic Expansion Valve ❑ This valve allows very precise and smooth control of the amount of refrigerant flow in thesystem. Since the valve is operated by a step motor, the control circuits can open orclose it in very exact amounts, ...

1. Specifications 1 2 3 4 Section – 41 – SM830076 2. Processes and functions 2-15 Compressor Current Detection Circuit ❑ The Compressor Current Detection Circuit detects the compressor current and,depending on the current range, can stop the compressor motor so it will not bedamaged by overcurrent. ...

1 2 3 4 Section – 42 – SM830076 2. Processes and functions 2-16 Electronic Expansion Valve Control The circulation volume of the refrigerant is controlled by a pulse type electronic control valve.When the power is switched ON, the opening degree of the electronic control valve iscontrolled between 9...

1. Specifications 1 2 3 4 Section – 43 – SM830076 2. Processes and functions 2-17 Voltage Detection Control When the power voltage falls below 160 V or rises above 260 V, operation lamp and stand-bylamp flash alternately to protect the compressor and electrical components.

3. Electrical data 1 2 3 4 Section – 46 – SM830076 3-1 Indoor Unit 1 1 1 1 1 XHS2432, XHS3632 TH1 TH2 TH3 2 1 2 1 2 1 3 1 2 1 LM P S Connector 3P(WHT) Connector 9P(WHT) MOV 3 1 FS 45 3 3 1 21 2 1 3 1 3 1 3 1 3 1 4 3 5 71 3 23 1 23 1 123 4 5 6 7 8 9 1 S P 23 4 5 67 8 9 12 3 12 3 1 Power Line To Outdo...

3. Electrical data 1 2 3 4 Section – 47 – SM830076 3-1 Indoor Unit 1 1 1 1 1 XHS2432, XHS3632 • Schematic Diagram S 854-2-5268-772-00-0 (XHS) FMI 2 1 2 1 2 1 2 1 3 1 2 1 3 2 3 4 5 1 2 34 1 TR1 4P-U2 4P-U1 Indoor Coil Indoor Coil Room Thermistor E2 TH1 TH2 TH3 FS CR-THS2432 Controller E1 3 1 1 1 1 R ...

3. Electrical data 1 2 3 4 Section – 48 – SM830076 3-2 Outdoor Unit 1 1 1 1 1 CH2432 1 3 5 2 4 6 • Electric Wiring Diagram TH6 TH7 TH8 2 1 2 1 2 1 3 1 63PH 3 1 3 1 3579 1 3 1 1 3 BLK BLK BLK BLK WHT WHT TR AC 14V FMO CM PNK BRN GRY GRY WHT VLT YEL CT B A UV W RS T 3 1 32 2 1 2 1S P 2 1 2 1 S P Conne...

4. Service procedures 1 2 3 4 Section – 53 – SM830076 4. SERVICE PROCEDURES 4-1 Troubleshooting ............................................................................................. 54 (1) Check before and after Troubleshooting ................................................ 55 (2) General ...

4. Service procedures 1 2 3 4 Section – 54 – SM830076 4-1 Troubleshooting This section explains: This unit is made to be trouble free, and not need much service. However, with time, movingparts wear out, electronic components break down, and sometimes misuse damages the unit.The purpose of this sect...

4. Service procedures 1 2 3 4 Section – 55 – SM830076 (1) Check before and after Troubleshooting Many problems may happen because of wiring or power supply problems, so you shouldcheck these areas first. Problems here can cause false results in some of the other tests, andso should be corrected firs...

4. Service procedures 1 2 3 4 Section – 56 – SM830076 (2) General Troubleshooting Flow Chart: Diagnosis and Remedy When you have found a major problem, such as refrigerant not flowing in the system orreduced air circulation, come to this section and find the box listing the problem. Connectedto the ...

4. Service procedures 1 2 3 4 Section – 58 – SM830076 (3) Meanings of alarm messages If an error occurred in the air conditioner, the error condition is presented by indicating theerror code in the wired remote controller display or by the combination of lamp statuses foroperation, timer and heat st...

4. Service procedures 1 2 3 4 Section – 60 – SM830076 (4) LED Indication on the Outdoor Unit’s P.C.B. Ass’y If something goes wrong with the outdoor unit, LED lamps on the outdoor P.C.B. Ass’y lightup to show the cause of the trouble, in addition to the Alarm message on the remotecontroller. LED 2 o...

4. Service procedures 1 2 3 4 Section – 61 – SM830076 (5) Symptoms and parts to inspect 1) Symptom: LCD on the remote controller does not display and remote controller does not operate. No No No No No No No No No No Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Start Replace the indoor unit PCB. Is there ...

4. Service procedures 1 2 3 4 Section – 62 – SM830076 2) Symptom: LCD on the remote controller displays “CHECK E01”. (Unusual communication between remote controller and indoor unit.) 3) Symptom: LCD on the remote controller displays “CHECK E02”. (Unusual communication between remote controller and ...

4. Service procedures 1 2 3 4 Section – 63 – SM830076 4) Symptom: LCD on the remote controller is displaying “CHECK E04”. (Unusual communication between the indoor and outdoor units.) 5) Symptom: LCD on the remote controller is displaying “CHECK E05”. (Unusual communication between the indoor and ou...

4. Service procedures 1 2 3 4 Section – 65 – SM830076 9) Symptom: LCD on the remote controller displays “CHECK P01”. (Indoor fan protection thermostat operation warning) No No No Yes Yes Yes 1146_THS_I Start Is there 230-208 V AC between S4 and T20-3 on the indoor unit PCB? Is there 230-208 V AC bet...

4. Service procedures 1 2 3 4 Section – 66 – SM830076 10) Symptom: LCD on the remote controller displays “CHECK P02”. (Compressor / outdoor fan protection thermostat operation warning / powersupply voltage abnormality) Yes Yes No Yes No No 1147_THS_I Start Is the outdoor fan wire winding protection ...

4. Service procedures 1 2 3 4 Section – 67 – SM830076 11) Symptoms: LCD on the remote controller displays “CHECK P03”. (Alarm for unusual discharge temp. of compressor) 12) Symptom: LCD on the remote controller displays “CHECK P04”. (High-pressure switch activation warning) 0343_M_I Start Unusual di...

4. Service procedures 1 2 3 4 Section – 68 – SM830076 13) Symptom: LCD on the remote controller displays “CHECK P05”. (Negative phase detection operation warning) 14) Symptom: LCD on the remote controller displays “CHECK E15”. Yes No No No Yes Yes 0345_M_I Start Check the power breaker etc. and repa...

4. Service procedures 1 2 3 4 Section – 69 – SM830076 15) Symptom: LCD on the remote controller displays “CHECK E16”. No No No Yes Yes 0647_M_S Start Repair the wiring. When the group of the units are installed, is there any mis-cross between inter unit control wiring and refrigerant tubing? Confirm...

4. Service procedures 1 2 3 4 Section – 71 – SM830076 (6) Procedures When a Specific Component Does Not Work 1) Indoor fan does not operate. No Yes Is fan motor capacitornormal ? Is there voltage outputof P.C.B. Ass'y for fanmotor ? • Check resistance of fan motor winding. Replace the fan motor. Rep...

4. Service procedures 1 2 3 4 Section – 72 – SM830076 3) Compressor motor does not operate. 4) Outdoor fan does not operate. No Yes Does compressor motor magnetic contactor (52C) actuate ? Replace the compressor motor magnetic contactor. Check resistance of compressor motor winding. Replace the comp...

4. Service procedures 1 2 3 4 Section – 73 – SM830076 (7) Service Functions of Optional Wired Remote Controller(Temperature displayed on the screen is not °F but °C.) From the remote controller you can control both the operation and settings of the unit as wellas perform several useful service check...

4. Service procedures 1 2 3 4 Section – 74 – SM830076 (B) Use the test run procedure ❏ The purpose of the test run function is to let you control the operation of the unitdirectly without turning the unit on or off by thermostat. As indicated in the followingprocedure, be sure to stop test run opera...

4. Service procedures 1 2 3 4 Section – 75 – SM830076 (C) Check the sensor temperature readings The air conditioner has thermo sensors which are used to control the unit. ❏ Each sensor has an address which is made up of the indoor unit address, and thesensor address. The indoor unit address is used ...

4. Service procedures 1 2 3 4 Section – 76 – SM830076 NOTE Location of Sensor (Themistor) Relationship between the sensor address and the location of sensor Sensor Address(CODE No.) Indoor Unit 01 — 02 TH1 Indoor air suction Temp. 03 TH2 Indoor coil Temp. (E1) 04 TH3 Indoor coil Temp. (E2) 05 — 06 —...

4. Service procedures 1 2 3 4 Section – 77 – SM830076 This picture shows the service check display. SERVICE R.C. No. CHECK UNIT No. No. CODE 0358_M_I CODE No. No. UNIT No. 1–1 Alarm message RefrigerantCircuit No. c . A maximum of 4 alarm messages can be accessed by pressing either SET TEMP button or...

4. Service procedures 1 2 3 4 Section – 78 – SM830076 Never press CL (clear) button unless you want to erase the accessed data in memory. Followthe procedure below only when erasing is necessary. ❏ To erase accessed data, press the CL button. ❏ When erasing is finished,“----” mark appears on the con...

4. Service procedures 1 2 3 4 Section – 79 – SM830076 (F) Execute the auto. address operation ❏ Auto. address operation is executed by pressing the A. ADD (S1) button of outdoorunit’s PCB usually.For your convenience it can be executed by remote controller also. a Press the TEST / CHK and ( ) button...

4. Service procedures 1 2 3 4 Section – 80 – SM830076 (G) Confirm and change the indoor unit address ❏ The purpose of the above function is to let you confirm the indoor unit address afterthe auto. address operation, and change the indoor unit address if it is needed. a Press the TEST / CHK and ( ) ...

4. Service procedures 1 2 3 4 Section – 81 – SM830076 e Set the required new indoor unit’s No. by pressing the , ( ) button. f Press the SET button.UNIT No, SET DATA (0008) and SETTING changes from flashing to ON state. g If you made a mistake, press the CL button. h Finally, press the TEST / CHK bu...

4. Service procedures 1 2 3 4 Section – 82 – SM830076 (H) Change the shift temperature in heating mode ❏ If the indoor unit is installed at high location (ex. ceiling level), the thermostat tends to turn off atheating mode because of the hot air temperature around ceiling level. In order to solve th...

4. Service procedures 1 2 3 4 Section – 83 – SM830076 ( I ) Set the indoor unit address ❏ This function is usable if the auto. address operation is not available.Indoor unit address can be set one by one by remote controller in such case. 1) In case of group control, branch wiring for group control ...

4. Service procedures 1 2 3 4 Section – 84 – SM830076 d Set the No. of R. C. which you want to set with , ( ) button. e Press the SET button.UNIT No., CODE No. 12, SETTING and SET DATA (0002) change from flashing to ON state. f Select the CODE No. 13 to set the indoor unit No. with the , (SET TEMP) ...

4. Service procedures 1 2 3 4 Section – 86 – SM830076 (J) Change the period of the filter timer ❏ If the period of filter timer is not suitable (for example in case of dirty environment), theperiod can be shortened to half as follows: a Press the TEST / CHK button for more than 4 seconds. SET CL MOD...

4. Service procedures 1 2 3 4 Section – 87 – SM830076 Fig. 21 Coppertube ormetallic part Clip Insulationtester Probe Terminal plate 0639_X_S Fig. 22 Coppertube ormetallic part Clip Insulationtester Probe 0640_X_S Fig. 23 From fan motor,compressor and otherparts. Clip Probe Insulationtester Metallicp...

4. Service procedures 1 2 3 4 Section – 88 – SM830076 (2) Checking the Protective Devices • Disconnect the connector, which consists of P (plug) and S (socket) when you want tocheck the protective device. • Then check continuity among plug’s (and/or socket’s) terminal as in Fig. 25. • Normality of t...

4. Service procedures 1 2 3 4 Section – 89 – SM830076 (3) Checking the Electrical Parts 1 Power transformer (TR1) ..................... Indoor unit *Measure the coil resistance. • Primary 230-208V ; Measure the resistance between No.1 and No.3 (WHT lead wires) terminals of 3P (WHT) socket connected ...

4. Service procedures 1 2 3 4 Section – 90 – SM830076 Fan motorcapacitor Compressor motorcapacitor 1041_X_S Multimeter Ω Fig. 26 6 6 6 6 6 Continuity of fuse on P.C.B. Ass’y • Check for continuity using a multimeter as shown in Fig. 27. Method Used to Replace Fuse on PCB Ass’y 1. Remove the PCB Ass’...

4. Service procedures 1 2 3 4 Section – 91 – SM830076 7 Solenoid coil of the electronic refrigerant *Measure the coil resistance. control valve (ERCV) ………… Indoor unit • Measure the resistance between No. 5 (GRY lead wire) and other terminals (another color oflead wires) of 5P (WHT) plug connected t...

4. Service procedures 1 2 3 4 Section – 92 – SM830076 Indoor Unit• XHS2432 (4) Sensor and Solenoid Layout Diagram Outdoor Unit• CH2432 1154_THS_I TH6 (C1), (BLK) 20S 63PH TH7 (C2), (RED) TH8(GRN) TH6, 7, 8 CM CH TH8 (GRN)( Discharge gas) 1153_THS_I TH2 (E1), (RED) TH3 (E2), (BLK) Electronic expansio...

4. Service procedures 1 2 3 4 Section – 94 – SM830076 (2) Indoor heat exch. coil sensor : TH2(E1), TH3(E2) Outdoor heatexch. coil sensor : TH6(C1), TH7(C2) ( PBC-41E) (5) Thermistor Characteristic Curve (1) Room temp. sensor : TH1 (KTEC-35) –4 5 14 23 32 41 50 59 68 0 5 10 15 20 25 30 35 40 Temperat...

4. Service procedures 1 2 3 4 Section – 97 – SM830076 (8) Automatic Address Setting Method — For group control and central control withmultiple outdoor units — Carry out automatic address setting withthe remote controller.1) All auto. address operation 1 Press the TEST / CHK and ( ) buttons at the s...

4. Service procedures 1 2 3 4 Section – 98 – SM830076 (10) Items to Check Prior to Test Run 1) Turn on the power supply switch morethan 5 hours before in order to chargethe crank case heater. 2) Fully open the outdoor service valve aftermaking the leak inspection of fieldconnected tubing, vacuuming,...

4. Service procedures 1 2 3 4 Section – 99 – SM830076 (11) Test Run (11)-1. Preparing for Test Run Before starting the air conditioner, check the followings: (1) Remove all loose matter from the cabinet espe- cially metal filings, bits of wire, and clips. (2) Connect the control wiring correctly and...

4. Service procedures 1 2 3 4 Section – 101 – SM830076 (11)-3. Test Run Procedure 1) One of CN4 of all linked outdoor units shold be short. 2) In case of using system controller, zone registration is required after finishing Test run.Regarding the zone registration, please refer to Installation Inst...