Service ManualSplit Wall-Mounted Type Room Air Conditioner (ALLEGRO SERIES)Model applied: 42HQE009N/38YE009 42HQE012N/38YE012N 42HQE018N/38YE018Contents 1. Features 60 2. Specification 61 3. Dimensions 67 4. Refrigeration cycle diagram 70 5. Operation limits 71 6. Wiring diagram 72 7. Specification of electrical parts 8. Troubleshooting 80 9. Electronic function 10. Exploded view and spare parts listCasella di testo: 3 4 6 8 9 10 13 14 14 211. Features 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 Compact design. Quiet operation. Anti-icing function at cooling mode. Anti-cold air function at heating mode. Auto-defrosting and heating recovering function at heating mode. Outdoor unit overload current protection. Restart function. 24 hours on/off mode time setting. Error self diagnosis function.2.Specification Model 42HQE009N/38YE009 42HQE012N/38YE012N 42HQE018N/38YE018 Power supply Ph-V-Hz 1, 220-240V~, 50Hz 1, 220-240V~, 50Hz 1, 220-240V~, 50Hz Cooling Capacity Btu/h 9000 12000 17000 Rated Input W 1040 1320 1980 Rated current A 4.6 5.8 8.9 EER W/W 2.50 2.662.42 Heating Capacity Btu/h10500 14000 21000 Rated Input W1150 1360 2200 Rated current A 5.0 6.0 9.9 COP W/W2.7 3.02 2.82 Moisture Removal L/h1.0 1.2 1.6 Max. input consumption W 1250 1700 2600 Max. current A 6 7.8 13.0 Starting current A 19.8 25 45 Compressor Model PG180X1C-4FT3 PG225X2C-4FT PG330*2CS-4KU3 Type Rotary Rotary Rotary Brand TOSHIBA TOSHIBATOSHIBA Capacity Btu/h 10800 13550/13700 20130/20267 Input W 1015 1290/1335 1980/2105 Rated current(RLA) A 4.5 6.1 9.7/10.3 Thermal protector UP3SE0591-T61 UP3RE0591-T56 Internal Capacitor uF 30 35 40UF/370V Refrigerant oil ml RB68AF/T68/a68TF 400 RB68AF/T68/a68TF 480750 Indoor fan motor Model RPG13H RPG20D RPG25 Brand Welling Welling Welling Input W 38.5 49.2 53 Capacitor uF 1.2 1.5 1.5 Speed(hi/mi/lo) r/min 1100/1020/950 1060/900/800 1260/1100/1000 Indoor coil a.Number of rows 2 2 2b.Tube pitch(a)xrow pitch(b) mm 21x13.37 2113.37 2113.37 c.Fin spacing mm 1.3 1.3 1.3 d.Fin type (code) Hydrophilic aluminium Hydrophilic aluminium Hydrophilic aluminium e.Tube outside dia.and type mm f7 Innergroove tube f7, innergroove tube f7,innergroove tube f.Coil length x height x width mm 578X252X26.74 63531527.34 66023127.34 g.Number of circuits 2 2 3 Indoor fan Typemm Crossflow Crossflow Crossflow Indoor air flow (Hi/Mi/Lo) m3/h 470/440/410 580/550/520 800/770/740 Indoor Sound pressure (Hi/Mi/Lo) (LPA) @cooling dB(A) 39/35/33 38/34/32 46/43/40 Indoor Sound power (Hi/Mi/Lo) (LWA) @cooling dB(A) 54/51/48 52/48/47Indoor unit Dimension (W*H*D) mm 750x250x188 815X280X195 906X286X235 Packing (W*H*D) mm 830x336x280 915X360X275 1020X380X328 Net/Gross weight Kg 8.5/10.5 10.5/13.5 13.5/16.5 Outdoor fan motor Model YDK25-6C YDK25-6C YDK53-6K Brand Welling WELLING WELLING Input W 85 85 93Capacitor uF 2.5 2.5F/450V 3.0F/450V Speed r/min 900 900 640 Outdoor coil a.Number of rows 1 2 2 b.Tube pitch(a)xrow pitch(b) mm 25.4X22 21x13.37 25.4x22 c.Fin spacing mm 1.4 1.5 1.7 d.Fin type (code) Hydrophilic aluminium Hydrophilic aluminium Hydrophilic aluminium e.Tube outside dia.and typemm .9.53,innergroove tube .7,innergroove tube .9.53,innergroove tube f.Coil length x height x width mm 754X508X22 75050826.74 797x660x44 g.Number of circuits 2 2 4 Outdoor fan Type and Diameter mm Propeller Propeller Propeller Outdoor air flow m3/h 1900 1900 2300 Outdoor Sound pressure (LPA) @cooling dB(A) 52 52 54Outdoor Sound power (LWA) @cooling dB(A) 62 62Outdoor unit Dimension(W*H*D) mm 780X540X250 780540250 845X695X335 Packing (W*H*D) mm 910X575X335 910575335 970X770X395 Net/Gross weight Kg 36/39 37/40 55/60 Refrigerant type R407c g 840 1150 2100 Design pressure MPa 2.82.8 2.8 Refrigerant piping Liquid side/ Gas side mm(inch) .6.35/.9.53 .6.35/.12.7 .6.35/.12.7 Max. refrigerant pipe length m 10 10 15 Max. difference in level m 5 5 8 Additional refrigerant charge over 5mg/m 30 30 30 Main Expansion device (Capillary) mm F2.5*1.5*650 F3.2*1.7*850 F3.2*1.9*820Sub mm F2.5*1.5*750 F3.2*1.7*800 F3.2*1.9*500 Operation temp . 17-30 17-30 17-30 Ambient temp . 7-43 7-43 7-43 Application area m2 14-21 18-26 30-40Remarks: 1.Cooling capacities are based on indoor air temp. 27. DB, 19. WB and outdoor ai r temp. 35. DB, and 24. WB. Heating capacities are based on indoor air temp. 20. DB, 15. WB and outdoor air temp. 7. DB, and 6. WB. 2. Indoor Sound Pressure level is measured in free field (JIS 9612 std) at 1m di stance. Outdoor Sound Pressure level is measured in hemispherical field, at 4m distance from the unit. these values are normally somewhat different as a result of ambient condition.3. Dimensions 3.1 Indoor unit 42HQE009N3.2 Indoor unit 42HQE012N3.3 Indoor unit 42HQE018N3.4 Outdoor unit 38YE009 / 38YE012N3.5 Outdoor unit 38YE018N 12.54. Refrigeration cycle diagramCooling & heatingIndoor unit outdoor unitAuxiliary accumulator for 12K Valve Sensor of room temp . 4 way valveHeat exchanger Heat exchangerSensor of heat exchanger temp Accumulator . CompressorValve Capillary5.Operation limits 5.1Cooling operation Outdoor unit air temp.. DB 45DRY COOLING403530252010 15 20 25 30 35 40 Indoor air temp. . DB Note : The chart is the result from the continuous operation under constant air temperature conditions. However, excludes the initial pull-down stage.5.2Heating operation Indoor air temp. . DB30252015105-5 5 15 25 Outdoor unit air temp.. DB Note : The chart is the result from the continuous operation under constant air temperature conditions. However, excludes the initial pull-down stage.6. Wiring diagram6.1 42HQE009N / 38YE0096.2 42HQE012N / 38YE012N6.3 42HQE018N / 38YE018 YELLOWCN5LOUVER MOTOR CN8AMBIENT SENSORCN3SENSORCN10CN7HEAT EXCHANGERLOUVER MOTOR CN6INDOOR MOTORGREENBLACKWHITETRANSFORMERDISPLAY BOARDSWITCH BOARDCN12CN9COMPRES SOR RELAYCURRENT DETECTORWHITECN1CN4BROWNBLUECN14CN27. Specification of electrical parts 7.1 Temperature-resistance of room temp. sensor & pipe temp. sensor Temperature . Resistance KO Temperature . Resistance KO Temperature . Resistance KO -10 62.28 17 14.618 44 4.3874 -9 58.71 18 13.918 45 4.2126 -8 56.37 19 13.263 46 4.0459-7 52.24 20 12.643 47 3.8867 -6 49.32 21 12.056 48 3.7348 -5 46.57 22 11.5 49 3.5896 -4 44 23 10.973 50 3.451 -3 41.59 24 10.474 51 3.3185-2 39.82 25 10 52 3.1918 -1 37.2 26 9.5507 53 3.0707 0 35.2 27 9.1245 54 2.959 1 33.33 28 8.7198 55 2.8442 2 31.56 29 8.3357 56 2.73823 29.91 30 7.9708 57 2.6368 4 28.35 31 7.6241 58 2.5397 5 26.88 32 7.2946 59 2.4468 6 25.5 33 6.9814 60 2.3577 7 24.19 34 6.6835 61 2.27258 22.57 35 6.4002 62 2.1907 9 21.81 36 6.1306 63 2.1124 10 20.72 37 5.8736 64 2.0373 11 19.69 38 5.6296 65 1.9653 12 18.72 39 5.3969 66 1.896313 17.8 40 5.1752 67 1.830 14 16.93 41 4.9639 68 1.7665 15 16.12 42 4.7625 69 1.7055 16 15.34 43 4.5705 70 1.64697.2 Compressor windings resistance (run & start winding @20.) Compressor model PG180X1C-4DZ3 PG225X2C-4FTPG330*2CS-4KU3 Winding 1 (Main) .. 3.335% 2.355% 1.545% Winding 2 (Sub) .. 3.785% 3.225% 3.045%7.3 Indoor fan motor windings resistance (@20.). Motor model RPG13H RPG20D RPG25 Winding 1 (Main) 400 .. 327 .. 2098%O Winding 2 (Sub) 430 .. 380 .. 3768%O7.4 Outdoor fan motor windings resistance(@20.). Motor model YDK25-6C YDK53-6K Winding 1 (Main) 170.. 738%.. Winding 2 (Sub) 195.. 1348%O8. Troubleshooting For all heat pump modelFailure phenomenon Operation lamp Timer lamp Defrosting lamp Over current protection of the compressor occurs 4 times . X . Indoor fan speed has been out of control for over 1 minute X . . No over-zero signal. . . Temp. sensor on indoor evaporator is open circuit or short circuit X X . Indoor room temp. sensor is open circuit or short circuit X . X EEROM error On . Xr Extinguish . Flash at 5Hz 9. Electronic function 9.1 Electric Control working environment 9.1.1 Input voltage: 175~253V 9.1.2 Input power frequency:50Hz 9.1.3 Ambient temperature: -7C~+43C 9.1.4 Indoor fan normal working amp is less than 1A, 9.1.5 Outdoor fan. Normal working amp is less than 1.5A 9.1.6 Four-way valve normal working amp is less than 1A.9.1.7 Swing motor: DC12V. 9.1.8 Compressor: single-phase power supply. Its normal working amp is less than 15A 9.2 Proper symbols and their meanings: TA: Indoor ambient temperature TE: Indoor evaporator temperature TS: Setting temperature through the remote controller I3sec: Self-protection amp of compressor, continue three seconds until turns off the compressor. I5MIN: Self-protection amp of compressor, continue five minutes until turns off the compressor. IFAN: Self-protection amp of outdoor fan/indoor fans when they change from highe r wind to lower wind. IRESTORE: Amp self-protection return value THDEFROST: High wind, defrosting temperature difference TMDEFROST: Middle wind, defrosting temperature difference TLDEFROST: Low wind, defrosting temperature difference TE1: Anti-cold wind, from Fan Off to Breeze temperature TE2: Anti-cold wind, from Breeze to Setting Fan Speed temperature TE3: Anti-cold wind, from Setting Fan Speed to Breeze temperatureTE4: Anti-cold wind, from Breeze to Fan Off temperature TE5: Evaporator low temperature protection entering temperature TE6: Evaporator low temperature protection restoring temperature TE7: Evaporator high temperature protection, compressor off temperature TE8: Evaporator high temperature protection, fan off temperature TE9: Evaporator high temperature protection, restoring temperature9.3 Systematic functions Remote receiving Testing and forced run Position set for indoor unit wind vane LED displaying and alarm On or off Timer Protection for the compressor Current protection High temperature protection of indoor heat exchanger at heating mode Auto defrosting and heating recovery at heating mode Anti cold air at heating mode Anti frozen at heating mode9.4 Protection 9.4.1 The compressor functions protection with a delay of three minutes. 9.4.2 Sensor protection at open circuit and breaking disconnection 9.4.3 Temperature Fuse break protection 9.4.4 Fan Speed is out of control. When Indoor Fan Speed is too high(higher than High Fan+300RPM)or too low(lower than 400RPM), the unit stops and LED displays failur einformation and can t returns to normal operation automatically. 9.4.5 Cross Zero signal error warning. If there is no Cross Zero signals in 4 mi nutes, the unit stops and LED displays failure information and can t returns to normal operation automat ically. 9.4.6 The current protection of the compressorCondition Indoor fan Compressor Outdoor fan Remark Current up I< IRESTORE On On OnIRESTORE