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TECHNICAL DATA
& SERVICE MANUAL
SPLIT SYSTEM AIR CONDITIONER
Model No. Product Code No.
SPW-UMR74EXH56 854.0.2263
SPW-UMR94EXH56 854.0.2264
SPW-UMR124EXH56 854.0.2265
SPW-UMR164EXH56 854.0.2301
SPW-UMR184EXH56 854.0.2266
SPW-UMR224EXH56 854.0.2267
SM940046
0.8180.439.0 June 2005
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• Ground the unit following local electrical codes. IMPORTANT! • The Yellow/Green wire cannot be used for any connection Please read before installation different from the ground connection. • Connect all wiring tightly. Loose wiring may cause overheating This air conditioning system meets strict safety and operating at connection points and a possible fire hazard. standards. • Do not allow wiring to touch the refrigerant tubing, compressor, For the installer or service person, it is important
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Table of Contents Page 1. SPECIFICATIONS 4 1-1 Unit specifications 4 1-2 Major Component specifications 7 1-3 Other Component specifications 10 2. DIMENSIONAL DATA 11 3. ELECTRICAL DATA 13 3-1 Electric Wiring Diagram 13 3-2 Control PCB switches and functions 14 4. FUNCTION 15 4-1 Room Temperature Control 15 4-2 Automatic control for heating and cooling 16 5. REPLACING PCB 17 5-1 Replacing PCB 17 5-2 How to replace PCB 18 5-3 How to replace EEPROM with EEPROM included in PCB service pack 19 5-4 T
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1. SPECIFICATIONS 1-1 Unit Specifications SPW-UMR74/94/124EXH56 Power source 220 - 240V ~ 50Hz 230V Voltage rating Cooling Heating Performance See catalogue with the requested matching Capacity Air circulation (High/Med./Low) m³/h 600/510/440 Features Controls/Temperature controls Microprocessor/ I.C. thermostat RCS-SH80AG / RCS-KR1AG Remote Controller (Option) wired RCS-BH80AG.WL wireless Fan speed 3 and Auto Air Filter Washable Sound pressure level (*) high/med/low dB(A) 54/52/49 Refrigerant
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SPW-UMR164/184EXH56 220 - 240V ~ 50Hz Power source Voltage rating 230V Cooling Heating Performance Capacity See catalogue with the requested matching 875/600/400 Air circulation (High/Med./Low) m³/h Features Microprocessor/ I.C. thermostat Controls/Temperature controls Remote Controller (Option) wired RCS-SH80AG / RCS-KR1AG wireless RCS-BH80AG.WL 3 and Auto Fan speed Washable Air Filter Sound pressure level (*) high/med/low dB(A) 54/47/42 Refrigerant tubing connections Flare type 6,35 (1/4) Re
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SPW-UMR224EXH56 220 - 240V ~ 50Hz Power source Voltage rating 230V Cooling Heating Performance Capacity See catalogue with the requested matching 1000/700/600 Air circulation (High/Med./Low) m³/h Features Microprocessor/ I.C. thermostat Controls/Temperature controls Remote Controller (Option) wired RCS-SH80AG / RCS-KR1AG wireless RCS-BH80AG.WL 3 and Auto Fan speed Washable Air Filter Sound pressure level (*) high/med/low dB(A) 57/49/46 Refrigerant tubing connections Flare type 9,52 (3/8) Refri
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1-2 Major Component Specifications SPW-XMR74/94/124EXH56 Controller PCB CR-CRP50A-B Part No. Microprocessor Controls Fan & Fan Motor Type Centrifugal fan Q'ty ……. Dia. and lenght mm 2…. Ø 160 / L 240 3RGB-CO-45-30 5V/1….1 Fan motor model…Q'ty No. Of poles…rpm (230 V, High) 4 … 1060 Running Amps A 0,45 110 Power input W Coil resistance (Ambient temp. 20 °C ) BLU-BRN: 95 Ω BRN-BLK: 37 BLK-GRY: 15 GRY-VLT: 15 WLT-RED: 30 RED-YEL: 101 Safety devices Type Internal thermal protector - 7AM 037 A 5 150
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SPW-XMR164/184EXH56 Controller PCB CR-CRP50A-B Part No. Microprocessor Controls Fan & Fan Motor Type Centrifugal fan Q'ty ……. Dia. and lenght mm 2…. Ø 160 / L 240 3FGB-CO-65-38 5V/1….1 Fan motor model…Q'ty No. Of poles…rpm (230 V, High) 4 … 1106 Running Amps A 0,6 138 Power input W Coil resistance (Ambient temp. 20 °C ) BLU-BRN: 68 Ω BRN-BLK: 9 BLK-GRY: 36 GRY-VLT: 18 VLT-RED: 18 BRN-YEL: 105 Safety devices Type Internal thermal protector - 7AM 037 A 5 150 ± 5K Operating temp. Open °C Close °C R
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SPW-XMR224EXH56 Controller PCB CR-CRP50A-B Part No. Microprocessor Controls Fan & Fan Motor Type Centrifugal fan Q'ty ……. Dia. and lenght mm 2…. Ø 160 / L 240 3FGB-CO-65-38 5V/1….1 Fan motor model…Q'ty No. Of poles…rpm (230 V, High) 4 … 1161 Running Amps A 0,57 136 Power input W Coil resistance (Ambient temp. 20 °C ) BLU-BRN: 68 Ω BRN-BLK: 9 BLK-GRY: 36 GRY-VLT: 18 VLT-RED: 18 BRN-YEL: 105 Safety devices Type Internal thermal protector - 7AM 037 A 5 150 ± 5K Operating temp. Open °C Close °C Run
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1-3 Other Component Specifications Trasformer ATR-IIJ225A Rating Primary VAC 230V, 50Hz AC 20V - 0.2A Secondary 1 Secondary 2 AC 14V - 0.3A AC 10,2V - 1.4A Secondary 3 Thermal cut-off temp. 136°C Thermistor ( Coil sensor E1, E2) PBC-41E-S26 Resistance 0 °C 15,0 ± 5% k Ω Thermistor ( Coil sensor E3) PBC-41E-S42-2 Resistance 0 °C 15,0 ± 4,42% k Ω Thermistor ( Room sensor TA, TF/BL) DHKTEC-35-S85N Resistance 25 °C 5,0 ± 4% k Ω Drain pump PC 309564003 Model 220/240V - 50Hz Rating Voltage Input 14
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2. DIMENSIONAL DATA SPW-UMR74/94/124EXH56 11
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SPW-UMR164/184/224EXH56 12
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3. ELECTRICAL DATA 3-1 Electric Wiring Diagram 7P terminal board 1(L) 2(N) U1 U2 R1 R2 power inter-unit remote supply control controller iring w 13
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3-2 Control PCB switches and functions CR-TRP50A-B OC (CN040) EMG (CN044) VARISTOR (VA041) JP1 DISP (CN072) EXCT (CN073) FILTER (JP001) (CN070) CHK (CN071) FAN DRIVE GRL (CN032) (CN020) T10 (CN061) POWER LED (D002) EEPROM (IC010) T10: 6 plug (yellow): used for remote control. (Refer to the remote control section) (CN061) 1- start/stop input 2- COM 3- remote control prohibit/release input 4- start signal output 5- COM (+DC12v) 6- alarm signal output T10 EXCT: 2P plug (red): Can be used for demand
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4. FUNCTIONS 4-1 Room temperature control 15
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4-2 Automatic control for heating and cooling 16
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5. REPLACING PCB 5-1 Replacing PCB About EEPROM (Erasable Programmable Read-Only Memory) EEPROM is a component in which the various information necessary for functionning can be electronically written or erased. This component holds informations that is essential for the running of the unit, and must be handled with care. D002 led lamp (red) 17
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5-2 How to replace PCB 18
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5-3 How to replace EEPROM with EEPROM included in PCB service pack 19
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