Sanyo XH2442 / CH2442 - Manuals

I - 2 SM830082 1 2 3 4 5 1. Specifications 1-1 Unit Specifications MODEL No. Indoor Unit XH2442 Outdoor Unit CH2442 POWER SOURCE 230 - 208 V / 1 Phase / 60 Hz PERFORMANCE Cooling Heating Capacity* BTU / h 24,000 23,400 25,000 24,300 (17 ° F)** 16,400 15,800 Moisture removal (High) Pints / h 8.6 8.4 ...

I - 12 SM830082 1 2 3 4 5 1. Specifications MODEL No. XH2442 Source 230 - 208 VAC / 1 phase / 60 Hz Remote c o n t r o l l e r ( O p t i o n ) RCS - SH80UA, WL Controller P. C. B Ass'y CR - TH2442 Control circuit fuse 250 VAC, 3 A Fan (Number … diameter) in. (mm) Turbo (1…17-7/16 (443)) Fan motor Mo...

I - 25 SM830082 1 2 3 4 5 1. Specifications 1-3 Other Component Specifications (A) Indoor Unit MODEL No. XH2442 Power Transformer ATR – II224A Rated Primary 220 VAC, 60 Hz Secondary BRN - BRN : 14 V, 0.45 A, RED - RED : 14 V, 0.3 A Capacity — Coil resistance Ω WHT - WHT : 61.0 , RED - RED : 1.37 (Am...

I - 40 SM830082 1 2 3 4 5 1. Specifications 1-4 Dimensional data Indoor unit : Ceiling Mounted Type 24 Type Drain connectionDrain connection for left sideRefrigerant liquid line (1/4") Flare connectionRefrigerant gas line (3/4") Flare connectionHole for rear side refrigerant tubingHole for t...

I - 42 SM830082 1 2 3 4 5 1. Specifications 1-4 Dimensional data Indoor unit : Concealed Duct Type 24 Type Refrigerant liquid line ø3/8 (narrow tube)(Use the tube connector)Refrigerant gas line ø5/8 (wide tube)Upper drain port (O.D. 1-1/4)Bottom drain port (O.D. 1-1/32)Suspension lugPower supply inl...

I - 44 SM830082 1 2 3 4 5 1. Specifications 1-4 Dimensional data Indoor unit : Concealed Duct Type ■ Flange for the air intake duct (Field supply): For Concealed Duct Type 23/32 1-7/32 F G H G F 11/32 E D B (O.D.) A (Hole) C-ø1/8 (Hole) 1/4 (Hole) 12-1/32 10-1/4 (O.D.) 29/32 7-7/8 1-25/32 5/16 1-25/...

I - 45 SM830082 1 2 3 4 5 1. Specifications 1-4 Dimensional data Indoor unit : Wall Mounted Type 24 Type 49-7/32 Dimension : inch Refrigerant gas line (wide tubing: ø 3/4)Refrigerant liquid line (narrow tubing: ø 1/4) Drain hose OD 1-1/4 1911_X_S 4-5/32 2-1/4 8-9/32 14-9/16 2-3/4

I - 49 SM830082 1 2 3 4 5 1. Specifications 1-5 Refrigerant Flow Diagram Outdoor Unit: CH2442 Indoor Unit: 24 Type HP Highpressureswitch Compressor Accumulator Accumulator EC P Heat exchanger 4-way valve EC P Heat exchanger Distributor Electronicref.controlvalve Strainer Liquid linenipple Liquid lin...

I - 50 SM830082 1 2 3 4 5 1. Specifications HP Highpressureswitch Compressor Accumulator EC P Heat exchanger 4-way valve EC P Heat exchanger Distributor Electronicref.controlvalve Strainer Liquid linenipple Liquid lineservicevalve O.D.3/8"(9.52mm) O.D.3/4"(19.05mm) Gas linenipple Gas lineser...

I - 90 SM830082 1 2 3 4 5 1. Specifications 1-10 Noise Criterion Curves ● 4-Way Air Discharge Semi-concealed Type MODEL : XH2442 SOUND LEVEL : HIGH 38 dB(A), NC 31 LOW 31 dB(A), NC 23 CONDITION : Center, Under the unit 4.9 ft. SOURCE : 208 - 230 V, 1 Phase, 60 Hz MODEL : XH4242 SOUND LEVEL : HIGH 45...

I - 94 SM830082 1 2 3 4 5 1. Specifications 90 80 70 60 50 40 30 20 10 63 125 250 500 1000 2000 4000 8000 0597_C_S APPROXIMATETHRESHOLD OFHEARING FORCONTINUOUSNOISE NC-60 NC-50 NC-40 NC-30 NC-20 NC-70 OCTAVE BAND SOUND PRESSURE LEVEL, dB (0dB=0.0002 µ bar) BAND CENTER FREQUENCIES, Hz NC-70 NC-50 NC-...

I - 95 SM830082 1 2 3 4 5 1. Specifications 1-11 Increasing the Fan Speed If external static pressure is too great (due to long extension of ducts, for example), the air flow volume may drop too low at each air outlet. This problem may be solved by increasing the fan speed using the following proced...

I - 96 SM830082 1 2 3 4 5 1. Specifications 1-12 Air throw distance chart ● 4-Way Air Discharge Semi-concealed Type Model: 24 Type Model: 36, 42 Type : LOUVER ANGLE 20˚ in Cooling mode : LOUVER ANGLE 60˚ in Heating mode Condition Fan Speed : Hi Room air temp. : 80 ˚C DB in cooling mode 68 ˚C DB in h...

I - 100 SM830082 1 2 3 4 5 1. Specifications Ceiling-Mounted Type ■ SELECTING THE INSTALLATION SITE Indoor Unit AVOID: ● areas where leakage of flammable gas may beexpected. ● places where large amounts of oil mist exist. ● direct sunlight. ● locations near inverter lamps which may affectperformance...

I - 102 SM830082 1 2 3 4 5 1. Specifications Air discharge 0426_C_I Recommended outer dimensions of wind shield (field supply) 0936_C_I 3 - ø1-9/16" hole 6 - ø15/64" hole 9-27/32" 21-5/8" 15/16" 5-3/16" 22-7/16" 1/2" 23-15/32" 21-13/16" 5-5/32" 9-27/32"...

I - 105 SM830082 1 2 3 4 5 1. Specifications ● Wiring System Diagrams (1) Basic wiring diagram for standard control 1 2 U1 U2 1 2 1 2 1 2 1 2 G G L1 L2 G Indoor Unit Inter-unitpower wiringSingle phase230/208V Inter-unitcontrol wiring(Low voltage) Remote controller Outdoor Unit Ground Ground (Option)...

II - 1 SM830082 1 2 3 4 Section 5 2. Processes and functions 2. PROCESSES AND FUNCTIONS 2-1 Room Temperature Control ...................................................................... II - 2(A) Cooling .................................................................................................

II - 2 SM830082 1 2 3 4 Section 5 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 ...

II - 3 SM830082 1 2 3 4 Section 5 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, COOL or FAN) dur...

II - 5 SM830082 1 2 3 4 Section 5 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 fan speedwill be a...

II - 6 SM830082 1 2 3 4 Section 5 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 ...

II - 9 SM830082 1 2 3 4 Section 5 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 valvereact to coil temp...

II - 10 SM830082 1 2 3 4 Section 5 2. Processes and functions 2-8 Discharge Temperature Control (Cooling and Heating) This function prevents the compressor motor from burnout by overheating. OUTDOOR FAN SPEED DISCHARGE GAS TEMP. ( ° F) 239 (24, 36 Type) 221 203 200 194 185 275 (42 Type) 257 239 235 ...

II - 11 SM830082 1 2 3 4 Section 5 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 COOLING or HEATING...

II - 12 SM830082 1 2 3 4 Section 5 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 h...

II - 15 SM830082 1 2 3 4 Section 5 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 Power Interruption...

II - 16 SM830082 1 2 3 4 Section 5 2. Processes and functions 2-13 Electronic Refrigerant Control 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 ex...

II - 17 SM830082 1 2 3 4 Section 5 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. ❑ Overcurrent c...

II - 18 SM830082 1 2 3 4 Section 5 2. Processes and functions 2-16 Electronic Refrigerant Control 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 iscontrol...

II - 19 SM830082 1 2 3 4 Section 5 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 SM830082 III - 2 3. Electrical data TH1 TH2 TH3 3 1 2 1 2 1 2 1 TH4 3 1 2 1 DP 2P (GRN) 3P (WHT) 4 5 3 2 1 4 3 2 1 2 1 13 2 1 3 1 3 1 3 1 3 1 3 1 4 3 5 6 2 14 3 5 6 5 13 9 7 3 12 S P 1 Power Line Control Line To Outdoor Unit Terminal Plate (5P) Earth Terminal • Electric Wiring Diagram W 854-2-5268...

3 III - 3 SM830082 3. Electrical data • Schematic Diagram S 854-2-5268-930-00-1 (X) FMI 2 1 3 1 2 1 2 1 2 1 2 1 3 1 3 1 3 1 2 34 5 1 5P-U2 5P-U1 To Outdoor Unit Indoor Coil Indoor Coil Indoor Coil Room Thermistor TH4 TH3E3 TH2E2 TH1 LSW FS CR E1 2 3 1 5 6 4 3 1 1 1 1 8 9 3 3 RC1 1X 3X 1 2 3 LM 2 1 3...

3 SM830082 III - 12 3. Electrical data • 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 AC230V AC14V FMO PNK BRN GRY GRY WHT RED WHT VLT YEL CT B A UV W 3 2 RS T 3 1 2 1 2 1 4 3 4 3 6 5 6 5 8 7 8 P Connector 8P (WHT) RC2 S7 U1 U2 To Indoor ...

1 2 3 4 Section IV - 1 SM830082 4. Service procedures 4. SERVICE PROCEDURES 4-1 Troubleshooting ...................................................................................... IV - 2 (1) Check before and after Troubleshooting ......................................... IV - 3 (2) General Troubl...

4. Service procedures 1 2 3 4 Section SM830082 IV - 2 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...

1 2 3 4 Section IV - 3 SM830082 4. Service procedures (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 SM830082 IV - 4 (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 SM830082 IV - 6 (3) Meanings of alarm messages When using group control, main indoor unit address setting is duplicated. (For single heat pump type.) Error in Auto. address setting. (No. or capacity of judged indoor unit is small.) Error in Auto. address setting...

1 2 3 4 Section IV - 7 SM830082 4. Service procedures Thermistorfailure Fault withcomp. and itscircuit Possible Cause of Malfunction Indoor thermistor is either openor damaged. Outdoor thermistor is eitheropen or damaged. Protective device for comp. isactivated. EEPROM (ICB of PCB) failure Model set...

4. Service procedures 1 2 3 4 Section SM830082 IV - 8 (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 SM830082 IV - 10 2) Symptom: LCD on the remote controller displays “CHECK E01”. (Unusual communication between remote controller and indoor unit.) OK No No Yes Yes NG 2096_THS_I Start Remote controller judges itself with self-diagnostic functions Replace the rem...

1 2 3 4 Section IV - 11 SM830082 4. Service procedures 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 o...

4. Service procedures 1 2 3 4 Section SM830082 IV - 12 6) Symptom: LCD on the remote controller is displaying “CHECK E06”. (Unusual communication between the indoor and outdoor units) 7) Symptom: LCD on the remote controller is displaying “CHECK E08”. (Duplicate indoor unit address setting) 8) Sympt...

1 2 3 4 Section IV - 13 SM830082 4. Service procedures 9) Symptom: LCD on the remote controller displays “CHECK P01”. (Indoor fan protection thermostat operation warning) No No Yes Yes Yes 2098_THS_I Start Is there 230-208 V AC between T20-1 and T20-3 on the indoor unit PCB? Is the indoor fan wire w...

1 2 3 4 Section IV - 15 SM830082 4. Service procedures 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 d...

4. Service procedures 1 2 3 4 Section SM830082 IV - 16 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 rep...

1 2 3 4 Section IV - 17 SM830082 4. Service procedures 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? Confir...

1 2 3 4 Section IV - 19 SM830082 4. Service procedures (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. Re...

4. Service procedures 1 2 3 4 Section SM830082 IV - 20 4) Compressor motor does not operate. 5) 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 com...

4. Service procedures SM830082 IV - 22 1 2 3 4 Section 5 Fig. IV-4 1929_M_I Sensor address Sensor temperature ° F a Unit No. (Indoor unit address) (B) Check the sensor temperature readings The air conditioner has thermo sensors which are used to control the unit. ❏ Each sensor has an address which i...

SM830082 IV - 23 SM830082 1 2 3 4 Section 5 4. Service procedures Refer to the table below for the relationship between the sensor address and the location of the sensor. In case there are no sensor equipped with the unit, “- - -” is shown on the display. C Resetting the remote controller display to...

4. Service procedures SM830082 IV - 24 1 2 3 4 Section 5 (D) Check the remote controller itself for correct operation The remote controller has a self-diagnostic function to check for problems in the remotecontroller itself.In order to check, the shorting plug (2P) inserted in the socket (4P) on the...

SM830082 IV - 25 SM830082 1 2 3 4 Section 5 4. Service procedures Never press (clear) button unless you want to erase the accessed data in memory. Follow the procedure below only when erasing is necessary. ❏ To erase accessed data, press the button. ❏ When erasing is finished,“----” mark appears on ...

4. Service procedures SM830082 IV - 26 1 2 3 4 Section 5 (F) Confirm and change the indoor unit address (Ref. Fig. IV-8, IV-9) ❏ 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 Pre...

SM830082 IV - 29 SM830082 1 2 3 4 Section 5 4. Service procedures ( I ) Change the period of the filter timer (Ref. Fig. IV-13) ❏ 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 + buttons at same tim...

4. Service procedures 1 2 3 4 Section SM830082 IV - 30 Fig. IV-14 Coppertube ormetallic part Clip Insulationtester Probe Terminal plate 0639_X_S Fig. IV-15 Coppertube ormetallic part Clip Insulationtester Probe 0640_X_S Fig. IV-16 From fan motor,compressor and otherparts. Clip Probe Insulationtester...

1 2 3 4 Section SM830082 IV - 31 SM830082 4. Service procedures (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. IV-18. • N...

4. Service procedures 1 2 3 4 Section SM830082 IV - 32 (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...

1 2 3 4 Section SM830082 IV - 33 SM830082 4. Service procedures Fan motorcapacitor Compressor motorcapacitor 1041_X_S Multimeter Ω Fig. IV-19 6 6 6 6 6 Continuity of fuse on P.C.B. Ass’y • Check for continuity using a multimeter as shown in Fig. IV-20. Method Used to Replace Fuse on PCB Ass’y 1. Rem...

4. Service procedures 1 2 3 4 Section SM830082 IV - 34 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 ...

1 2 3 4 Section SM830082 IV - 35 SM830082 4. Service procedures (2) Indoor heat exch. coil sensor : TH2(E1), TH3(E2) Outdoor heatexch. coil sensor : TH6(C1), TH7(C2) ( PBC-41E) (4) Thermistor Characteristic Curv (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...

4. Service procedures 1 2 3 4 Section SM830082 IV - 36 (5) PCB Setting ● Setting of outdoor control PCB (A) Standard control (single outdoor unit) In case of single outdoor unit installation, even if in case of twin, triple or quartet type (2, 3 or 4 indoor units), no setting necessary. Keep factory...

1 2 3 4 Section SM830082 IV - 37 SM830082 4. Service procedures (6) R.C. Address Setting Method (“0” when shipped from factory) 1 ON ON side OFF side 2 0 R.C. address R.C. address R.C. address (S3 2P dip switch, green or blue) (S2 Rotary switch, Black) 00 auto address Both OFF Set to 0 1 ON 10 posit...

4. Service procedures 1 2 3 4 Section SM830082 IV - 38 (7) Automatic Address Setting Method (8) Displaying Indoor / Outdoor Unit Com- bination Numbers Display the indoor / outdoor unit address after auto- matic address setting. (1) When installing multiple units, match the indoor unit address number...

4. Service procedures 1 2 3 4 Section SM830082 IV - 40 (10) Test Run ■ Preparing for Test Run ● Before attempting to start the air conditioner,check the following: (1) All loose matter is removed from the cabinetespecially steel filings, bits of wire, and clips. (2) The control wiring is correctly c...

1 2 3 4 Section SM830082 IV - 41 SM830082 4. Service procedures Set the outdoor unit R.C. address.Turn on power supply switch. Execute auto. address operation with the remote controller. Press A. ADD (S1) button (See P87). or Execute auto. address operation with the remote controller. Press A. ADD (...

4. Service procedures 1 2 3 4 Section SM830082 IV - 44 (12) Checking procedure for each PC Board The indoor and outdoor PCBs have functions to check the signal transmission and reception of theserial circuit and to check the microcomputer operation. (Self-diagnosis function) ● Precautions required w...

1 2 3 4 Section SM830082 IV - 45 SM830082 4. Service procedures (13) TMX60 pins When shorting TMX60 pins on the indoor and outdoor PCBs, operations shown on the above table will be per- formed on each indoor and outdoor unit. Use TMX60 pins to perform a quick check. • When checking pin operation, st...