Sanyo CH1271 Technical & Service Manual Download Page 24

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• Check each performance value in test-run mode. Electrical performance values represent a combined indoor/outdoor value.

NOTE

Cooling Characteristics (RH : 46%, Indoor fan speed : High fan) (60Hz, 230V)

(1) Low pressure performance chart

(2) Operating current performance chart

(3) Indoor discharge air performance chart

Indoor Unit

XHS1872 & PNR-XS1872

Outdoor Unit

CH1872

Hi Fan

Lo Fan

Low pressure at wide tube service valve

psig(MPaG)

Operating current (A

)

(0.5)

102

(0.7)

131

(0.9)

Outdoor inlet air D.B. temp. °F(°C)

Indoor discharge air temperature °F

(°C

)

(25)

(30)

(35)

104

(40)

Hi Fan

Lo Fan

(25)

(30)

(35)

104

(40)

Outdoor inlet air D.B. temp. °F(°C)

Indoor Air Temp.86

°F (30°C)

80°F (27°C)

75°F (24°C)

Indoor Air Temp.86°F (30°C

)

80°F (27°C)

75°F (24°C)

Indoor Air Temp.86

°F (30

°C)

80°F (2

7°C)

75°F (

24°C)

Indoor Air Temp.86°F (30°C)

80°F (27°C)

75°F (

24°C)

Hi Fan

Lo Fan

(0)

(5)

(10)

(15)

(20)

(25)

(30)

(35)

104

(40)

Indoor Air Temp.86

°F (30°C)

75°F (24°C)

Indoor Air Temp.86°F (30°C)

75°F (24°C)

80°F (27°C)

Summary of Contents for CH1271

Page 1: ...1 CH1872 Product Code No 1 852 330 22 1 852 330 38 Outdoor Unit XHS1271 Body PNR XS1872 Panel XHS1872 Body PNR XS1872 Panel Wireless Remote Controller Wired Remote Controller Option CH1271 CH1872 REFERENCE NO SM700766 Indoor Model No Body Panel XHS1271 PNR XS1872 XHS1872 PNR XS1872 Product Code No Body Panel 1 852 352 08 1 852 352 11 1 852 352 07 1 852 352 11 FILE NO Body Panel ...

Page 2: ...on especially a damp or humid location If a leakage breaker is not installed electric shock can occur When Transporting Be careful when picking up and moving the indoor and outdoor units Get a partner to help and bend your knees when lifting to reduce strain on your back Sharp edges or thin aluminum fins on the air conditioner can cut your fingers When Installing In a Ceiling or Wall Make sure the...

Page 3: ...al Characteristics 6 2 Electric Wiring Diagrams 7 MAINTENANCE 7 1 Address Setting of the Remote Control Unit 7 2 Disconnecting and Connecting Positive Connector for Outdoor Unit 7 3 Disassembly Procedure 8 FUNCTIONS 8 1 Operation Functions 8 2 Protective Functions 9 TROUBLESHOOTING 9 1 Precautions before Performing Inspection or Repair 9 2 Method of Self Diagnostics 9 3 Checking the Indoor and Out...

Page 4: ...4 Tubing Installation Procedures 11 5 In Case of Compressor Malfunction 11 6 In Case Refrigerant is Leaking 11 7 Charging Additional Refrigerant 11 8 Retro Fitting Existing Systems APPENDIX A INSTRUCTION MANUAL XHS1271 PNR XS1872 CH1271 XHS1872 PNR XS1872 CH1872 APPENDIX B INSTALLATION INSTRUCTIONS XHS1271 PNR XS1872 CH1271 XHS1872 PNR XS1872 CH1872 APPENDIX C INSTRUCTION MANUAL STK RCS 7TWSU APPE...

Page 5: ... 67 F D B 57 F W B 80 F D B 67 F W B _ D B _ W B 1 OPERATING RANGE Maximum Minimum Maximum Minimum 115 F D B 0 F D B 75 F D B 65 F W B 0 F D B Temperature Indoor Air Intake Temp Outdoor Air Intake Temp Cooling Heating 5 ...

Page 6: ...gth at shipment Flare Type 25 7 5 34 32 31 47 35 34 32 49 R410A 2 43 1 100 Electric Expansion Valve Washable Anti Mold DC Rotary Inverter Auto Timer Indoor Outdoor Fan Speeds 24 Hour ON or OFF Timer 1 Hour OFF Timer Auto and 3 steps Auto Hi Me Lo Airflow Direction Indoor Horizontal Controls Temperature Control Control Unit Microprocessor I C Thermister Wireless Remote Control Unit Features Compres...

Page 7: ... PNR XS1872 Indoor Unit XHS1271 PNR XS1872 inch mm 313 12 5 16 625 24 19 32 625 24 19 32 18 7 41 3 11 1 16 281 inch mm 22 5 8 575 inch mm Package Dimensions Height Width Depth 28 1 8 714 inch mm 11 13 32 290 inch mm 24 13 16 630 41 9 19 4 59 0 13 24 19 32 625 6 0 2 7 1 9 16 40 24 19 32 625 26 11 16 678 4 1 8 105 26 3 16 665 7 7 3 5 1 65 0 04 Shipping Volume Net Shipping Weight Ib kg Ib kg cu ft m3...

Page 8: ... Type 25 7 5 44 40 36 51 44 40 36 52 R410A 2 87 1 300 Electric Expansion Valve Washable Anti Mold DC Twin Rotary Inverter Auto Timer Indoor Outdoor Fan Speeds 24 Hour ON or OFF Timer 1 Hour OFF Timer Auto and 3 steps Auto Hi Me Lo Airflow Direction Indoor Horizontal Controls Temperature Control Control Unit Microprocessor I C Thermister Wireless Remote Control Unit Features Compressor Locked Rotor...

Page 9: ... XHS1872 PNR XS1872 inch mm inch mm inch mm Package Dimensions Height Width Depth inch mm inch mm Shipping Volume Net Shipping Weight Ib kg Ib kg cu ft m3 inch mm Dimensions Weight Outdoor Unit Unit Dimensions Height Width Depth Outdoor Unit CH1872 inch mm 670 26 3 8 880 34 21 32 285 11 7 32 740 29 1 8 1 012 39 27 32 380 14 31 32 44 0 97 0 48 0 105 8 0 28 9 88 inch mm inch mm Package Dimensions He...

Page 10: ...Type 25 7 5 44 40 36 51 44 40 36 52 R410A 2 87 1 300 Electric Expansion Valve Washable Anti Mold DC Twin Rotary Inverter Auto Timer Indoor Outdoor Fan Speeds 24 Hour ON or OFF Timer 1 Hour OFF Timer Auto and 3 steps Auto Hi Me Lo Airflow Direction Indoor Horizontal Controls Temperature Control Control Unit Microprocessor I C Thermister Wireless Remote Control Unit Features Compressor Locked Rotor ...

Page 11: ...XHS1872 PNR XS1872 inch mm inch mm inch mm Package Dimensions Height Width Depth inch mm inch mm Shipping Volume Net Shipping Weight Ib kg Ib kg cu ft m3 inch mm Dimensions Weight Outdoor Unit Unit Dimensions Height Width Depth Outdoor Unit CH1872 inch mm 670 26 3 8 880 34 21 32 285 11 7 32 740 29 1 8 1 012 39 27 32 380 14 31 32 44 0 97 0 48 0 105 8 0 28 9 88 inch mm inch mm Package Dimensions Hei...

Page 12: ... Type F C Aluminum Plate Fin Copper Tube 2 18 1 2 94 0 273 Face Area Coil Rows Fins per inch Heat Exchanger Coil ft2 m2 DATA SUBJECT TO CHANGE WITHOUT NOTICE Yes Control PCB Control Circuit Fuse Controls Part No Microprocessor 250V 3A CB XHS1271 1 D12 5 8 L5 3 4 D322 L147 RCS 7MHVPSW4U Turbo DC Motor SIC 72FV B623 1 1 8 DC160V 23W 470 520 Internal Controller Yes Fan Remote Control Unit Q ty Dia an...

Page 13: ... D12 5 8 L5 3 4 D322 L147 RCS 7MHVPSW4U Turbo DC Motor SIC 72FV D866 1B 1 8 650 720 Thermal Fuse Fan Remote Control Unit Q ty Dia and Length Type inch mm Fan Motor Coil Resistance Rough Measure RPM Cool Heat Type Model Q ty No of Poles Safety Device Type Ambient Temp 68 F 20 C Run Capacitor Micro F VAC Ohm PLD 12230ST 1 1 AC208 to 240V 60Hz 10 8 333 10 Coil Resistance Model Q ty Rating Voltage Hz ...

Page 14: ...pressor Model Nominal Output Compressor Coil Resistance Ambient Temp 68 F 20 C Ohm DC Rotary Hermetic G4C090LU1ER 900W U V V W W U 0 81 0 81 0 81 CT Peak current cut off control Compressor Discharge Temp Control Operation cut off control in abnormal ambient Temp Safety Device Micro F VAC Run Capacitor Crankcase Heater Yes Yes Yes Overload Relay CS 7L115 Model Operation Temp Open 239 F 115 C Close ...

Page 15: ... Type Compressor Model Nominal Output Compressor Coil Resistance Ambient Temp 68 F 20 C Ohm DC Twin Rotary Hermetic C 6RVN93H0M 1 050W R S S T T R 0 482 0 482 0 482 CT Peak current cut off control Compressor Discharge Temp Control Operation cut off control in abnormal ambient Temp Safety Device Micro F VAC Run Capacitor Crankcase Heater Yes Yes Yes Overload Relay CS 7L115 Model Operation Temp Open...

Page 16: ...or air temp sensor Model KTEC 35 S98 Indoor heat exchanger sensor Model PT2M 51H S3 Compressor temp sensor CH1271 Model DTN TKS274Y TH2 CH1872 Model DTN TKS293B Resistance k ohm Resistance k ohm Temperature F C Outdoor air temp sensor CH1271 Model DTN TKS269B CH1872 Model TKS295B Outdoor heat exchanger sensor CH1271 Model DTN TKS274Y TH1 CH1872 Model TKS292B 40 35 30 25 20 15 10 5 0 4 5 14 23 32 4...

Page 17: ... 8 1 3 16 21 32 3 1 8 The length of the suspension bolts should be selected so that there is a gap of 1 3 16 or the ceiling 21 32 or more below the lower surface of the main unit as shown in the figure at right If the suspension bolts is too long it will contact the ceiling panel and the unit cannot be installed A A Air intake Discharge outlet Refrigerant tubing liquid tube dia 1 4 flared Refriger...

Page 18: ...1 6 21 3 16 6 3 32 4 9 32 2 5 32 Narrow tube service valve dia 1 4 6 35 Wide tube service valve dia 3 8 9 52 3 19 32 15 32 10 7 16 265 11 13 32 12 7 16 Outdoor Unit CH1271 Unit inch mm 852 0 0010 12700 0 28 11 32 720 2 1 8 21 9 16 548 5 8 18 ...

Page 19: ...e valve dia 1 2 12 70 4 3 8 2 5 32 6 17 32 5 23 32 3 32 26 3 8 670 23 32 1 13 16 34 21 32 880 23 15 16 5 11 32 15 32 11 7 32 285 12 7 32 13 5 32 11 17 32 I D 2 3 3 2 4 I D 1 5 1 6 1 3 8 2 17 32 2 13 32 Outdoor Unit CH1872 Unit inch mm 852 0 0010 13200 0 19 ...

Page 20: ...or Unit XHS1271 PNR XS1872 Outdoor Unit CH1271 Insulation of Refrigerant Tubing Because capillary tubing is used in the outdoor unit both the wide and narrow tubes of this air conditioner become cold To prevent heat loss and wet floors due to dripping of condensation both tubes must be well insulated with a proper insulation material The thickness of the insulation should be a min 5 16 8 mm After ...

Page 21: ...n of Refrigerant Tubing Because capillary tubing is used in the outdoor unit both the wide and narrow tubes of this air conditioner become cold To prevent heat loss and wet floors due to dripping of condensation both tubes must be well insulated with a proper insulation material The thickness of the insulation should be a min 5 16 8 mm After a tube has been insulated never try to bend it into a na...

Page 22: ... tube service valve psig MPaG Operating current A 73 0 5 102 0 7 131 0 9 Outdoor inlet air D B temp F C Outdoor inlet air D B temp F C Indoor discharge air temperature F C 77 25 86 30 95 35 104 40 Hi Fan Lo Fan 10 11 12 13 14 15 77 25 86 30 95 35 104 40 Outdoor inlet air D B temp F C Indoor Air Temp 86 F 30 C 80 F 27 C 75 F 24 C Indoor Air Temp 86 F 30 C 80 F 27 C 75 F 24 C Indoor Air Temp 86 F 30...

Page 23: ...ting Characteristics RH 85 Indoor fan speed High fan 60Hz 115V Check each performance value in test run mode Electrical performance values represent a combined indoor outdoor value Overload prevention operates to protect the air conditioner when outdoor ambient temperature becomes extremely high in heating mode Refer to 8 2 Overload prevention during heating NOTE 1 High pressure performance chart ...

Page 24: ...e psig MPaG Operating current A 73 0 5 102 0 7 131 0 9 Outdoor inlet air D B temp F C Outdoor inlet air D B temp F C Indoor discharge air temperature F C 77 25 86 30 95 35 104 40 Hi Fan Lo Fan 5 6 7 8 9 10 77 25 86 30 95 35 104 40 Outdoor inlet air D B temp F C Indoor Air Temp 86 F 30 C 80 F 27 C 75 F 24 C Indoor Air Temp 86 F 30 C 80 F 27 C 75 F 24 C Indoor Air Temp 86 F 30 C 80 F 27 C 75 F 24 C ...

Page 25: ...23 5 32 0 41 5 50 10 59 15 68 20 77 25 23 5 32 0 41 5 50 10 59 15 68 20 77 25 131 55 122 50 113 45 104 40 95 35 86 30 77 25 68 20 Outdoor inlet air D B temp F C Outdoor inlet air D B temp F C Indoor discharge air temperature F C 23 5 32 0 41 5 50 10 59 15 68 20 77 25 Outdoor inlet air D B temp F C Heating Characteristics RH 85 Indoor fan speed High fan 60Hz 230V 1 High pressure performance chart 2...

Page 26: ...840 TC 12 230 12 030 11 790 11 580 10 600 7 970 CI 0 81 0 95 1 08 1 18 1 25 1 07 72 22 2 SHC 7 020 6 930 6 800 6 660 6 160 4 920 63 76 24 4 SHC 7 850 7 760 7 620 7 480 6 980 5 740 17 2 80 26 7 SHC 8 720 8 620 8 490 8 350 7 850 6 610 84 28 9 SHC 9 540 9 450 9 310 9 170 8 670 7 440 88 31 1 SHC 10 360 10 270 10 130 10 000 9 490 7 970 TC 12 470 12 300 12 070 11 900 10 720 8 060 CI 0 83 0 97 1 11 1 20 ...

Page 27: ...00 17 000 16 470 10 390 CI 1 17 1 37 1 57 1 75 1 97 1 41 72 22 2 SHC 10 400 10 200 10 000 9 800 9 540 6 620 63 76 24 4 SHC 11 590 11 390 11 190 11 000 10 730 7 810 17 2 80 26 7 SHC 12 850 12 650 12 450 12 260 11 990 9 070 84 28 9 SHC 14 040 13 850 13 650 13 450 13 180 10 270 88 31 1 SHC 15 240 15 110 14 840 14 640 14 380 10 390 TC 18 510 18 220 17 860 17 500 16 990 10 500 CI 1 19 1 40 1 60 1 79 2 ...

Page 28: ... 560 5 610 5 610 5 650 5 650 5 700 5 700 63 76 24 4 SHC 6 380 6 430 6 430 6 480 6 520 6 520 6 520 17 2 80 26 7 SHC 7 250 7 250 7 300 7 340 7 340 7 390 7 390 84 28 9 SHC 8 080 8 080 8 120 8 170 8 170 8 210 8 210 88 31 1 SHC 8 900 8 940 8 940 8 990 8 990 9 040 9 040 TC 9 170 9 210 9 330 9 440 9 540 9 600 9 660 CI 0 61 0 64 0 58 0 54 0 53 0 57 0 60 72 22 2 SHC 4 280 4 330 4 370 4 420 4 460 4 510 4 51...

Page 29: ... 8 810 8 810 8 870 63 76 24 4 SHC 9 800 9 870 9 870 9 930 10 000 10 070 10 070 17 2 80 26 7 SHC 11 060 11 130 11 130 11 190 11 260 11 260 11 330 84 28 9 SHC 12 260 12 320 12 320 12 390 12 450 12 450 12 520 88 31 1 SHC 13 450 13 510 13 510 13 580 13 650 13 710 13 710 TC 14 330 14 410 14 560 14 780 14 960 15 130 15 250 CI 1 11 1 14 1 14 0 95 0 91 0 86 0 88 72 22 2 SHC 6 690 6 750 6 820 6 890 6 950 7...

Page 30: ... 3 16 1 TH 7 760 7 790 7 810 7 830 7 840 CI 0 86 0 90 0 94 0 98 1 02 8 13 3 TH 8 350 8 380 8 410 8 420 8 440 CI 0 89 0 94 0 98 1 03 1 07 13 10 6 TH 8 980 9 000 9 030 9 050 9 060 CI 0 93 0 98 1 03 1 08 1 12 18 7 8 TH 9 660 9 690 9 720 9 730 9 750 CI 0 98 1 03 1 08 1 13 1 18 23 5 0 TH 10 390 10 420 10 440 10 460 10 470 CI 1 03 1 08 1 14 1 19 1 25 28 2 2 TH 11 150 11 180 11 200 11 210 11 220 CI 1 08 ...

Page 31: ...11 770 11 820 11 850 11 890 CI 1 37 1 44 1 50 1 56 1 62 8 13 3 TH 12 600 12 650 12 700 12 750 12 780 CI 1 43 1 50 1 57 1 64 1 71 13 10 6 TH 13 520 13 580 13 630 13 670 13 710 CI 1 50 1 57 1 65 1 72 1 80 18 7 8 TH 14 540 14 600 14 650 14 700 14 730 CI 1 57 1 65 1 74 1 82 1 90 23 5 0 TH 15 610 15 670 15 730 15 770 15 810 CI 1 65 1 74 1 83 1 92 2 00 28 2 2 TH 16 730 16 800 16 850 16 890 16 930 CI 1 7...

Page 32: ...ut W 18 12 39 1 242 Heating Cooling 12 6 1 260 Indoor Unit Outdoor Unit Complete Unit Fan Motor Fan Motor Compressor Performance at 115V Single phase 60Hz Rating conditions Running amp A 0 25 Power input W 20 14 35 1 440 14 6 1 460 Rating conditions Indoor air temperature 80 F 26 7 C D B 67 F 19 4 C W B Outdoor air temperature 95 F 35 C D B Rating conditions Indoor air temperature 70 F 21 1 C D B ...

Page 33: ...e phase 60Hz Rating conditions Running amp 0 19 Power input 27 10 31 2 313 10 5 2 340 Indoor Unit Outdoor Unit Fan Motor Fan Motor Compressor Performance at 208V Single phase 60Hz Rating conditions Running amp 0 16 Power input 22 8 94 1 838 Heating Cooling 230V 208V 2 Voltage 208V 1 Voltage 230V 9 1 1 860 Indoor Unit Outdoor Unit Fan Motor Fan Motor Compressor Performance at 208V Single phase 60Hz...

Page 34: ... BOX BOX SERIAL 2P WHT SERIAL 2P WHT TERMINAL BASE CONTROLLER CONTROLLER TO OUTDOOR UNIT GND FERRITE CORE AC1 AC2 SI 1 RED YEL BLU 1 1 YEL RED 3 3 1 1 2 1 1 2 2 1 1 2 2 2 3 3 4 4 5 5 6 6 7 7 1 1 2 2 3 3 4 4 5 5 6 6 7 7 1 1 2 2 3 3 4 4 5 5 1 1 2 2 3 3 4 4 5 5 6 6 7 7 1 1 2 2 3 3 4 4 1 1 2 2 1 1 3 3 3 3 4 4 5 5 1 1 2 2 1 1 2 2 1 1 2 2 3 3 4 4 5 5 1 1 2 2 3 3 4 4 5 5 6 6 6 6 7 7 8 8 9 9 10 10 YEL RED...

Page 35: ...1 1 2 2 CRANKCASE HEATER FERRITE CORE TERMINAL PLATE GND TO INDOOR UNIT POWER RELAY 6 1 4 5 BLK WHT RED BLK BLK BLK WHT 1 2 3 4 5 6 7 RV FM GRN YEL 4WAY VALVE COIL FAN MOTOR 1 2 3 4 5 6 7 1 2 3 4 5 6 7 BLK BLK BLK BLK YEL YEL YEL BLK BLK BLU RED BLK BLK BLK WHT YEL BLU RED BLK BLK YEL WHT GRY RED ORG WHT OUT DOOR THERMISTOR OVERLOAD RELAY OLR COIL THERMISTOR COMPRESSOR THERMISTOR 7P CONNECTOR WHT ...

Page 36: ...HT GRY RED ORG WHT COMPRESSOR THERMISTOR OVERLOAD RELAY OLR OUT DOOR THERMISTOR 1 2 3 4 1 2 3 4 COIL OUTDOOR YEL YEL COIL THERMISTOR 7P CONNECTOR WHT 2P CONNECTOR WHT MVO MAGNETIC COIL 2P CONNECTOR RED WHT WHT WHT WHT 1 1 2 2 BRN W BD W BD WHT W HIC W HIC BLK W AC2 W AC2 BLU N L GND 1 2 3 4 5 6 POWER SUPPLY W E1 GRN YEL W E GRN YEL TERMINAL PLATE FERRITE CORE GND TO INDOOR UNIT POWER RELAY 6 1 4 5...

Page 37: ... Fig 14 3 Press and hold the remote controller HIGH POWER button and 1 HR TIMER button Then press and hold the ACL reset button with a pointed object such as the tip of a pen After 5 seconds release ACL button first then release HIGH POWER and 1 HR TIMER buttons oP 1 test run appears blinking in the remote controller clock display area 4 Each time the 1 HR TIMER button is pressed the display chang...

Page 38: ...lways hold the cover to disconnect See illustration at left For the connector without the resin cover push the lock in the direction of 2 while pulling it off How to Connect In order to connect hold the resin cover of the connector and push it in Confirm the click sound for the inside lock Pull the cover upward When the cover is pulled upward the lock is released with the sequence of 1 and 2 7 2 D...

Page 39: ...nectors in the control box 1 Remove the 2 screws and remove the control box cover Fig 4 2 Disconnect the connectors CN04 FLAP 5P CN12 RC 4P and CN13 IND 7P Fig 5 Latch Latch Hook Hinge Air intake grill Screw Control box cover CN13 CN04 CN12 Fig 1 Fig 4 Fig 5 Fig 2 Fig 3 Hinge Control PCboard To avoid electrical shock hazard be sure to disconnect power before attempting to disassemble the unit When...

Page 40: ...ver and remove the cover with the section 2 pulled down Fig 7 4 Remove the strap 3 locations from the hook on the ceiling panel Fig 8 There is no strap on the indicator cover 5 Remove the bolt 4 locations with a washer and remove the ceiling panel Fig 9 Screw Bolt Bolt Screw Indicator cover Coner cover Coner cover Coner cover Clamp Clamp Pull down section 2 Lead wire Cover Center 1 Fig 6 Fig 7 Fig...

Page 41: ...d control box 1 Remove a screw and remove the terminal cover Fig 11 2 Remove the 2 screws and remove the power box cover Fig 11 3 Disconnect the power lines No 1 and No 2 signal line No 3 and ground cable from the terminals in the power box Fig 12 Indoor air temperature sensor CN08 Terminal Fig 10 Fig 11 Fig 12 Ground cable Terminal cover Screw Screw Power box cover Power lines Signal line 41 ...

Page 42: ... connector CN03 DCM 6P in the power box Fig 14 6 Remove the 4 screws and remove the power box Fig 14 7 Disconnect the connectors CN06 FS 3P and CN09 COIL 1 2P in the control box Fig 15 8 Remove the 2 screws and remove the control box Fig 15 Fig 13 Fig 14 Fig 15 Screw Screw Screw Screw Screw CN06 CN03 Screw Screw Ground cable CN07 CN09 42 ...

Page 43: ...e the drain cap to drain the water Fig 16 2 Refer to the installation instructions for recovery of refrigerant or removal of the power cable or tubing 7 3 6 Remove the main body lower section 1 Remove the 4 screws Fig 16 2 Remove the 2 screws Fig 17 3 Disconnect the connector CN03 DCM 6P in the power box Fig 18 4 Lift the main body lower section and remove it from the main body upper section Screw...

Page 44: ... float switch 1 Remove the 2 screws Fig 20 2 Loosen the clamp and disconnect the drain hose from the drain pump Fig 20 3 Remove the drain pump from the main body upper section Fig 20 4 Remove a nut and remove the float switch Fig 21 Heat exchanger sensor Fig 20 Fig 21 Fig 19 Holder Drain pump Screw Clamp Float switch Nut Drain hose 44 ...

Page 45: ...ove the fan motor Fig 23 7 3 10 Remove the heat exchanger 1 Remove the 3 screws Fig 24 2 Remove the 3 screws Fig 25 3 Remove the heat exchanger from the main body upper section with the heat exchanger lifted Fig 22 Fig 23 Fig 24 Fig 25 Turbo fan Nut Screw Nut Fan motor Screw Screw Heat exchanger Screw Main body upper section 45 ...

Page 46: ...en the remote controller malfunctions has been lost or otherwise cannot be used The set temperature is 4 F 2 C below the detected room temperature in the case of cooling operation and 4 F 2 C above the room temperature in the case of heating operation The flap and fan speed settings are AUTO GREEN RED Lamp Off COOL HEAT STOP When AUTO mode is selected the microprocessor calculates the difference b...

Page 47: ...n the remote controller The main unit display lamp also becomes dimmer COOL and DRY modes When the night setback mode is selected the air conditioner automatically raises the temperature setting 2 F 1 C when 30 minutes have passed after the selection was made and then another 2 F 1 C after another 30 minutes have passed regardless of the indoor temperature when night setback was selected This enab...

Page 48: ... drops to below 36 F 2 C continuously for 2 minutes or longer the compressor stops Once the freeze condition is detected the air conditioner will work less than the maximum frequency until it is turned off Approx 127 53 At stability of operation At start of operation A High LL Stopped A B C B Indoor heat exchanger A Control start B Control end Set fan speed 77 25 86 30 Approx 104 40 a b c d a b c ...

Page 49: ...nce Releasing of defrosting Outdoor fan ON 4 way valve ON Outdoor heating exchanger temp is over 68 F 20 C Defrosting operation lasts 12 minutes maximum 2 minutes after it is stopped compressor is ON 4 way valve is ON Outdoor fan is ON If the air conditioner is turned off during the defrosting cycle it will continue defrosting and turn itself off after defrosting is completed Compressor 1 minute a...

Page 50: ...H POWER button and 1 HR TIMER button Then press and hold the ACL reset button with a pointed object such as the tip of a pen After 5 seconds release ACL button first then release HIGH POWER and 1 HR TIMER buttons oP 1 test run appears blinking in the remote controller clock display area Step 2 Next press the 1 HR TIMER button once to change the display from oP 1 to oP 3 self diagnostics The displa...

Page 51: ...Cboard failure Outdoor PCboard failure 1 Mis wiring 2 AC power failure 3 Blown fuse 4 Power Relay failure 5 Indoor or outdoor PCboard failure 6 Outdoor Fan Motor failure 7 Reactor failure 8 High Pressure Switch failure 9 Overload Relay failure 10 Magnetic Coil failure See detailed flowchart in this section 1 HIC or power Tr failure 2 Outdoor fan does not turn 3 Instantaneous power outage 4 Service...

Page 52: ... current mode is TEST run If there are no problems with the above then check the outdoor unit 1 The rated voltage must be present between inter unit wirings 1 and 2 Connect a 5 k ohm resistor between inter unit wirings 2 and 3 When the voltage at both ends is measured approximately 12 to 15V DC must be output and the multimeter pointer must bounce once every 8 seconds Or instead of measuring the v...

Page 53: ...age B For terminal strip short circuit work or inter unit wiring removal turn off the power to avoid an electric shock Release the terminal strip short circuit after the completion of self diagnostics Do not perform the short circuit work between any other terminals except for specified ones on the specified terminal strip If such work is performed between the incorrect terminals the unit might be...

Page 54: ...he operation button on the indoor unit 2 Perform the self diagnosis five seconds after the operation start 1 Turn off the power and wait until the power lamp LED of the outdoor unit controller is turned OFF 2 Remove the short circuit between the terminals 2 and 3 on the outdoor unit terminal strip 3 Disconnect the cable from the terminal 3 on the indoor unit terminal strip Fig 4 Short circuit betw...

Page 55: ...ter the operation start 1 Turn off the power and wait until the power lamp LED of the outdoor unit controller is turned OFF 2 Disconnect the cable from the terminal 3 on the Outdoor unit terminal strip Fig 6 Defect in the inter unit cable 1 Turn ON the power and operate the system using the remote controller or the operation button on the indoor unit 2 Perform the self diagnosis five seconds after...

Page 56: ...ptom 1 The fan does not stop when the unit stops Indoor unit controller trouble Trouble symptom 2 The fan motor does not rotate when the unit is operating Diagnostic procedure Disconnect the motor connectors and measure the voltage at the DC motor connectors on the indoor unit controller 3 locations Diagnostic results All of the above measured values are normal Fan motor trouble Replace the motor ...

Page 57: ...uickly stops when the outdoor unit operates There is trouble in the system that provides feedback of motor rotation speed from the motor to the outdoor unit controller Trouble symptom 4 Fan motor rotation speed does not change during outdoor unit operation Trouble symptom 5 Fan motor rotation speed varies excessively during outdoor unit operation Remedy for symptom 3 to 5 It is not possible to ide...

Page 58: ...distance from the noise source 1 Use shielded wires 2 Move unit away from the noise source Trouble Either of the following trouble may occur 1 The unit may stop suddenly during operation 2 Indicator lamps may flicker 2 Electromagnetic interference This refers to noise generated by high speed switching of the microcomputer and compressor This noise radiates through space and returns to the electric...

Page 59: ...g 1 10 1 2 Indoor Unit Clamp an aluminum plate fin or copper tube with the lead clip of the insulation resistance tester and measure the resistance by placing a probe on each terminal screw on the terminal plate Fig 2 Note that the ground line terminal should be skipped for the check 10 1 3 Outdoor Unit Clamp a metallic part of the unit with the lead clip of the insulation resistance tester and me...

Page 60: ... Fig 6 Fuse 10 2 Checking Continuity of Fuse on PCB Ass y Remove the PCB Ass y from the electrical component box Then pull out the fuse from the PCB Ass y Fig 5 Check for continuity using a multimeter as shown in Fig 6 60 ...

Page 61: ...use of a change in composition of the remaining refrigerant Therefore do not add new refrigerant Instead recover the remaining refrigerant with the refrigerant recovery unit Then after evacuation totally recharge the specified amount of refrigerant with the new refrigerant at its normal mixed composition state in liquid phase When refrigerant R410A is used the composition will differ depending on ...

Page 62: ...n R410A refrigerant is exposed to fire Therefore be sure to provide ample ventilation during installation work Caution in case of R410A leak Check for possible leak points with the special leak detector for R410A If a leak occurs inside the room immediately provide thorough ventilation A D Flare tool for R410A A D Conventional flare tool R22 Spacer 11 2 Checklist before Servicing Use a clutch type...

Page 63: ...s which can be com monly used for R22 R407C and R410A CAUTION The above tools specifically for R410A must not be used for R22 and R407C Doing so will cause malfunction of the unit For the above vacuum pump 1 2 and vacuum pump adapter 3 those for R22 type units can be used for R410A type However they must be used exclusively for R410A and never alternately with R22 and R407C For details on tubing i...

Page 64: ...it quickly 3 Checking for sealing Use nitrogen gas for the pressurized gas and never use a refrigerant other than R410A Also do not use oxygen or any flammable gas 4 Evacuation Use a solenoid valve installed vacuum pump so that even if power is cut off in the middle of evacuation of air due to a power interruption the valve will prevent the pump oil from flowing back The equipment may be damaged i...

Page 65: ...use an electronic scale for charging refrigerant In this case if the volume of refrigerant in the cylinder becomes less than 20 of the fully charged amount the composition of the refrigerant starts to change Thus do not use the refrigerant if the amount in the charging cylinder is less than 20 Also charge the minimum necessary amount to the charging cylinder before using it to charge the air condi...

Page 66: ...lux and wax for R410A Prevent oxide film from forming inside the tubes utilizing substitution with nitrogen N2 in the refrigerant circuit of the unit Leave ends of tubes open during welding 4 Checking for sealing Use nitrogen gas for the pressurized gas and never use a refrigerant other than R410A Also do not use oxygen or any flammable gas 5 Evacuation Use a solenoid valve installed vacuum pump s...

Page 67: ... R410A for existing units which use R22 This will cause the air conditioner to operate improperly and may result in a hazardous condition 11 8 2 Use of Existing Tubing If replacing an older unit that used refrigerant R22 with a R410A unit do not use its existing tubing Instead completely new tubing must be used CAUTION Never charge additional refrigerant if refrigerant is leaking from the unit Fol...

Page 68: ...INSTRUCTION MANUAL XHS1271 PNR XS1872 CH1271 XHS1872 PNR XS1872 CH1872 OI 852 6 4181 107 00 0 APPENDIX A A 1 ...

Page 69: ...OI 85264181107000 INSTRUCTION MANUAL Inverter Controlled Split System Air Conditioner MODE D EMPLOI Climatiseur de type séparé contrôlé par inverseur This air conditioner uses the new refrigerant R410A Save These Instructions Conserver ce mode d emploi ...

Page 70: ...oling and drying operation Automatic Switching between Cooling and Heating This unit automatically switches between cooling operation and heating operation according to the difference between the room temperature and the temperature setting Hot Start Heating System Right from the start the air is warm and comfortable This system prevents any cold blasts at the beginning while the heat pump is warm...

Page 71: ...d electrician SAFETY INSTRUCTIONS Read this Instruction Manual carefully before using this air conditioner If you still have any difficulties or problems consult your dealer for help This air conditioner is designed to give you comfortable room conditions Use this only for its intended purpose as described in this Instruction Manual This symbol refers to a hazard or unsafe practice which can resul...

Page 72: ... gas flows Drain Hose Moisture in the room condenses and drains off through this hose Outdoor Condensing Unit The outdoor unit contains the compressor fan motor heat exchanger coil and other electrical components INDOOR UNIT Air intakes Remote control unit Refrigerant tubes Drain hose OUTDOOR UNIT Air outlet Air outlet 4 locations NOTE REMOTE CONTROL receiver This section picks up infrared signals...

Page 73: ...ogram Timer ON Timer OFF Timer 1 hour OFF Timer 5 NIGHT SETBACK 6 Confirmation of transmission 7 Auto flap indication Flap angle indication Sweep indication 8 High power operation Displayed when setting timer Displayed when transmitting data Displayed when indoor unit sensor is in use Displayed when setting temperature Displayed when temperature is shown Displayed when the time display is set to 1...

Page 74: ...utton When you press this button use a small tipped object such as a ballpoint pen the mark will appear at the display And the room temperature is detected by the sensor which is built into the indoor unit and the air conditioner is controlled accordingly If the remote control is located near a heat source such as a space heater or in direct sunlight press the SENSOR button to switch to the sensor...

Page 75: ... The air conditioner makes the room cooler FAN The air conditioner works only as a circulation fan NIGHT SETBACK button For details see 5 Night Setback Mode When you press this button in the HEAT DRY or COOL mode the mark appears in the display and the remote control unit will automatically adjust the set temperature to save energy Time display selector button This switches the time display betwee...

Page 76: ...aces DO NOT In direct sunlight Behind a curtain or other places where it is covered More than 26 ft 8 m away from the air conditioner In the path of the air conditioner s airstream Where it may become extremely hot or cold Where it may be subject to electrical or magnetic noise Where there is an obstacle between the remote control unit and air conditioner since a check signal is sent from the remo...

Page 77: ... change the settings as desired STEP 1 Press the MODE selector button and select the desired mode For heating operation For dehumidifying operation For cooling operation For fan only operation STEP 2 To start the air conditioner press the ON OFF operation button STEP 3 Press the TEMP setting buttons to change the temperature setting to the desired temperature Adjustable temperature range STEP 4 Se...

Page 78: ... switch to the fan mode STEP 2 Press the ON OFF operation button STEP 3 Press the FAN SPEED selector button to select the fan speed of your choice or STEP 2 STEP 1 STEP 3 When the night setback mode is selected the air conditioner automatically raises the temperature setting 2 F when 30 minutes have passed after the selection was made and then another 2 F after another 30 minutes have passed regar...

Page 79: ...ention For several minutes after the start of heating operation the indoor fan runs at a lower speed until the indoor heat exchanger coil has warmed up sufficiently However the fan may remain stopped when the room temperature is low This is because the COLD DRAFT PREVENTION SYSTEM is in operation Sometimes the indoor unit may not get to the set fan speed such as LOW under cool operation at very lo...

Page 80: ...that the program is not canceled When the ON timer and OFF timer are set to the same time the timer operates as if it is turned off Operation Indication 1 Press the OFF TIME setting button once The timer indication is displayed and the present OFF time is shown 2 Press the Advance Return button until AM 11 00 is displayed The timer indication blinks The time can be set in 10 minute increments Hold...

Page 81: ...m Do Always try to keep the air filter clean Refer to CARE AND CLEANING A clogged filter will impair the performance of the unit To prevent conditioned air from escaping keep windows doors and any other openings closed ADJUSTING THE AIRFLOW DIRECTION The vertical airflow can be adjusted by moving the flap with the remote control unit Do not move the flap with your hands Confirm that the remote con...

Page 82: ...ow it to dry and then remount it Do not move the flap with your hands When using a footstool or the like be careful not to let it tip over Cleaning the main unit and remote control unit Wipe clean using a soft dry cloth To remove stubborn dirt moisten a cloth in warm water no hotter than 104 F wring thoroughly and then wipe INDOOR UNIT OPERATION button OPERATION lamp Cooling operation green Heatin...

Page 83: ...wo air intake grille hinges 4 Clean the grille gently using a soft sponge or the like Then dry it with care Neutral detergent may be used to remove stubborn dirt Then rinse thoroughly with water and dry it Care After a prolonged idle period Check the indoor and outdoor unit air intakes and outlets for blockage if there is a blockage remove it Care Before a prolonged idle period Operate the fan for...

Page 84: ...lter 1 Clean air filter to improve airflow 2 Heat source or many people in room 2 Eliminate heat source if possible 3 Doors and or windows are open 3 Shut them to keep the heat or cold out 4 Obstacle near air intake or air discharge port 4 Remove it to ensure good airflow 5 Thermostat is set too high for cooling or too low for heating 5 Set the temperature lower or higher 6 Outdoor temperature is ...

Page 85: ...INSTALLATION INSTRUCTIONS XHS1271 PNR XS1872 CH1271 XHS1872 PNR XS1872 CH1872 II 852 6 4190 477 00 0 APPENDIX B A 2 ...

Page 86: ...TALL THE OUTDOOR UNIT 14 4 1 Wiring Instructions for the Outdoor Unit 5 REFRIGERANT TUBING 15 5 1 Use of the Flaring Method 5 2 Flaring Procedure with a Flare Tool 5 3 Caution before Connecting Tubes Tightly 5 4 Connecting Tubing between Indoor and Outdoor Units 5 5 Insulation of Refrigerant Tubing 5 6 Taping the Tubes 5 7 Finishing the Installation 6 AIR PURGING 17 I Air Purging with a Vacuum Pum...

Page 87: ...orting Be careful when picking up and moving the indoor and out door units Get a partner to help and bend your knees when lifting to reduce strain on your back Sharp edges or thin alu minum fins on the air conditioner can cut your fingers When Installing In a Ceiling or Wall Make sure the ceiling wall is strong enough to hold the unit s weight It may be necessary to construct a strong wood or meta...

Page 88: ...for the indoor and outdoor units and make sure all accessory parts listed are with the system before beginning 1 1 Tools Required for Installation not supplied 1 Standard screwdriver 2 Phillips head screwdriver 3 Knife or wire stripper 4 Tape measure 5 Carpenter s level 6 Sabre saw or key hole saw 7 Hacksaw 8 Core bits 9 Hammer 10 Drill 11 Tube cutter 12 Tube flaring tool 13 Torque wrench 14 Adjus...

Page 89: ...etailed in Table 3 and Fig 2 G install the indoor unit more than 3 3 1 m away from any antenna or power lines or connecting wires used for television radio telephone security system or intercom Electrical noise from any of these sources may affect operation Fig 1 3 3 ft 1m 1m 1m 3 3 ft 1m 3 3 ft 3 3 ft 3 3 ft 1m Fig 2 Tubing length L Elevation difference H Outdoor unit Indoor unit WARNING To preve...

Page 90: ... life Figs 5a and 5b Outdoor unit Hot air Heat source Exhaust fan NO Fig 3 Air intake Min 2 5 cm Air discharge Min 2 5 cm Min 8 20 cm Valve side Min 10 25 cm Min 7 2 m Min 7 2 m Ground Obstacle Obstacle above Air discharge Min 2 5 cm Air intake Air intake Concrete or equal About 4 10 cm Min 4 10 cm Anchor bolts 4 pcs About 1 4 40 cm Cushion rubber Fig 5a Drain holes CAUTION A solid base must not c...

Page 91: ...m The dia gram shows the relationship between the positions of the suspension fitting unit and panel Fig 6 2 3 3 Placing the Unit Inside the Ceiling 1 Be sure to remove the fan protection 4pcs for transportation before hanging up the indoor unit 2 When placing the unit inside the ceiling determine the pitch of the suspension bolts using the supplied full scale installation diagram Fig 6 3 Tubing a...

Page 92: ... drain hose first place 1 of the 2 hose bands over the unit drain port and the other hose band over the hard PVC pipe not supplied Then connect both ends of the supplied drain hose Fig 6 5 3 On the unit drain side grasp the hose band with pliers and insert the drain hose all the way to the base G If other commercially available hose bands are used the drain hose may become pinched or wrinkled and ...

Page 93: ...osition 1 Check that the ceiling hole is 23 5 8 600 mm 23 5 8 600 mm Fig 6 11 2 Confirm that the position of the indoor unit and the ceiling as shown in the diagram If the positions of the ceiling sur face and unit do not match air leakage water leakage flap operation failure or other problems may occur Fig 6 11 The drain pump will continue to operate for a minimum of 6 min utes after the FS 3P co...

Page 94: ...en the unit and the ceiling panel or between the ceiling panel and the ceiling surface G If there is a gap between the panel and the ceiling leave the ceiling panel attached and make fine adjustments to the installation height of the unit to eliminate the gap with the ceiling CAUTION Fig 6 17 Fig 6 18 Fig 6 19 Corner cover Indicator cover Press Pull up 2 1 latch Temporary latches Temporary DRAIN m...

Page 95: ...l will not be received G If the connectors are not connected the auto flap will not operate Be sure to connect them securely A Attaching the corner cover 1 Check that the safety strap from the corner cover is fas tened to the ceiling panel pin as shown in the figure Fig 6 23 2 Use the supplied screws to attach the corner cover to the ceiling panel B Attaching the air intake grille G To install the...

Page 96: ... 4 lists recommended wire lengths and diameters for power supply systems Refer to the wiring system diagram Fig 7a or Fig 7b for the meaning of A B and C in Table 4 Refer to your local codes or in the absence of local codes see the National Electric Code ANSI NFPA70 NOTE 11 3 6 5 Checking After Installation G Check that there are no gaps between the unit and the ceiling panel or between the ceilin...

Page 97: ...may affect the operation G To avoid the risk of electric shock each air con ditioner unit must be grounded G For the installation of a grounding device please observe local electrical codes G Grounding is necessary especially for units using inverter circuits in order to release charged electricity and electrical noise caused by high tension Otherwise electrical shock may occur G Place a dedicated...

Page 98: ... fix it securely with the removed terminal screw using a screwdriver Loose wiring may cause the ter minal to overheat or result in unit malfunction A fire hazard may also exist Therefore be sure all wiring is tightly connected WARNING Fig 9 STRIP SIZE 9 32 7 mm ACTUAL SIZE Fig 8 Fig 10 Solid wire Loop Insulation Strip 15 16 25 mm 1 3 2 Earth screw Clamping strap Conduit Inter unit Power wiring Loc...

Page 99: ...e Outdoor Unit First refer to Section 2 Installation Site Selection 4 1 Wiring Instructions for the Outdoor Unit Regulations on wire size differ from locality to locality For field wiring requirements please refer to your local electrical codes Make sure that the installation fully complies with all local and national regulations 1 Remove access panel C Fig 14 2 Connect the inter unit and power su...

Page 100: ... tool Figs 17 and 18 Use RIDGID or equivalent A good flare should have the following characteristics G inside surface is glossy and smooth G edge is smooth G tapered sides are of uniform length 5 3 Caution before Connecting Tubes Tightly a Be sure to apply a sealing cap or water proof tape to prevent dust or water from getting into the tubes before they are used b Be sure to apply refrigerant lubr...

Page 101: ... tubing connec tions with the flare insulation 1 8 T3 supplied Then wind the other flare insulation 3 16 T5 supplied Finally fasten the insulation at both ends with the sup plied vinyl ties Fig 23 Insulation material The material used for insulation must have good insula tion characteristics be easy to use be age resistant and must not easily absorb moisture After a tube has been insulat ed never ...

Page 102: ...tubing use sealing putty to seal off the hole in the wall to prevent rain and draft from entering Fig 26 NOTE 5 6 Taping the Tubes Fig 25 6 Air Purging Air and moisture remaining in the refrigerant system have undesirable effects as indicated below Therefore they must be purged completely G pressure in the system rises G operating current rises G cooling or heating efficiency drops G moisture in t...

Page 103: ...valve stem on the narrow tube service valve counter clockwise by 90 degrees 1 4 turn for 10 seconds and then turn the stem clockwise to close it again Fig 28 7 Leak test all joints at the tubing both indoor and outdoors with soapy water Bubbles indicate a leak Tighten the joint more when leaks then check if there is no leak Be sure to wipe off the soap with a clean cloth 8 With the hex wrench turn...

Page 104: ...utes the system shifts into cooling operation and cool air will start to be felt Cooling mode test run is unaffected by the room tempera ture 3 Press the ON OFF operation button of the remote controller again to stop the test run Fig 29 4 Finally press the ACL Reset button of the remote controller to release it from Test Run mode to return to normal mode Fig 29 and oP 1 will disappear from the rem...

Page 105: ...tube valve stem Then quickly stop the unit 5 Disconnect all gauges and hoses and replace the valve caps as they were before I Basic Functions of the Service Valves The basic functions of the service valves are given in Table 7 below Action Narrow Tube Service Valve 2 Way Wide Tube Service Valve 3 Way CLOSED Fully OPEN Fully OPEN Shipping Operating and test running the air conditioner Measuring pre...

Page 106: ... to make sure that the air conditioner operates from that location The indoor unit should make a beeping sound to indicate that it has received the signal Fig 36 To take out the remote control unit pull it forward I Service Valve Connections a Temporary connection Screw in 3 5 turns by hand Fig 34 b To fasten the flare nuts apply specified torque as Table 8 and Fig 35 Table 8 Fig 34 Fig 35 CAUTION...

Page 107: ...press and hold the ACL Reset button with a pointed object such as the tip of a pen After 5 seconds release the ACL button first then release the HIGH POWER and 1HR TIMER but tons oP 1 Test Run appears blinking in the remote controller clock display area 4 Each time the 1HR TIMER button is pressed the display changes as shown below Press this but ton 2 times to change the display to oP 7 Address se...

Page 108: ...INSTRUCTION MANUAL STK RCS 7TWSU OI 852 6 4181 119 00 0 APPENDIX C A 3 ...

Page 109: ... Filaire This wired remote controller is designed for both the COOL DRY HEAT Model and COOL DRY Model indoor unit Before using the remote controller be sure to confirm the model type specified on the front cover of the INSTRUCTION MANUAL supplied with the indoor unit Save These Instructions Conserver ce mode d emploi ...

Page 110: ...ound or earth wire or through the supply wiring 3 Wiring must be done by a qualified electrician SAFETY INSTRUCTIONS Read this Instruction Manual carefully before using this air conditioner If you still have any difficulties or problems consult your dealer for help This air conditioner is designed to give you comfortable room conditions Use this only for its intended purpose as described in this I...

Page 111: ...ing 60 86 F When set to 80 F temperature indication 4 Timer 24 hour clock with ON OFF program Timer ON Timer OFF Timer 1 hour OFF Timer 5 NIGHT SETBACK 6 Flap angle indication Sweep indication Displayed when indoor unit sensor is in use Displayed when operating NIGHT SETBACK mode Displayed when setting temperature Displayed when temperature is shown Displayed when setting timer Symbols OI 119 3 EG...

Page 112: ...e The temperature setting changes by 2 F each time one of the TEMP buttons is pressed NIGHT SETBACK button For details see 5 Night Setback Mode When you press this button in the HEAT DRY or COOL mode the mark appears in the display and the remote control unit will automatically adjust the set temperature to save energy Timer and Present Time setting buttons First press the SET button to select the...

Page 113: ...itioner works only as a circulation fan The indoor fan runs continuously when the system is in normal operation It does not turn off when the desired room temperature is reached If Night Set Back mode is selected the fan will turn off intermittently during cooling operation in order to control air flow NOTE SENSOR button When you press this button use a small tipped object such as a ballpoint pen ...

Page 114: ...desired STEP 1 Press the MODE selector button and select the desired mode For heating operation For dehumidifying operation For cooling operation For fan only operation STEP 2 To start the air conditioner press the ON OFF operation button STEP 3 Press the TEMP setting buttons to change the temperature setting to the desired temperature Adjustable temperature range 86 F max 60 F min STEP 4 Set the ...

Page 115: ...ontrol follow these steps STEP 1 Press the MODE selector button to switch to the fan mode STEP 2 Press the ON OFF operation button STEP 3 Press the FAN SPEED selector button to select the fan speed of your choice or STEP 2 STEP 1 STEP 3 When the night setback mode is selected the air conditioner automatically raises the temperature setting 2 F when 30 minutes have passed after the selection was ma...

Page 116: ...hange automatically back to show the present time after about 10 sec 3 Press the ON OFF button to start the air conditioner The present time is displayed 4 Press the TIMER SELECT button twice to set OFF time The present time and are displayed OFF TIME Present time Operation Indication 1 Press the SET button once The timer indication alone flashes and the previous set time is only displayed 2 Press...

Page 117: ...n operates the OFF Timer is cancelled and the unit will stop operating one hour later 2 Operation together with the daily ON OFF repeat timer The 1 Hour OFF Timer setting is given priority over the DAILY ON OFF REPEAT setting ADJUSTING THE AIRFLOW DIRECTION The vertical airflow can be adjusted by moving the flap with the remote control unit Do not move the flap with your hands Confirm that the rem...

Page 118: ...INSTALLATION INSTRUCTIONS STK RCS 7TWSU II 852 6 4190 481 00 0 APPENDIX D A 4 ...

Page 119: ... The remote controller is set to Cool Dry Heat model at the time of shipment from the factory If the purchased air conditioner is a COOL DRY model follow the instructions on the label and change the switch on the reverse side of the remote controller unit to Cool Dry model Fig 1 The remote controller is also set to Single at the time of shipment from the factory For multiple use set the switch on ...

Page 120: ...5 tab locations and disconnect the back plate of the remote controller by lift ing up slightly Fig 2 b The tabs are thin take care not to chip them 2 Use tapping screws to directly fasten the remote con troller back plate onto the wall Fig 6 3 Insert the connector into the PCB of the remote con troller unit and wrap the wire harness around the hook Fig 4 4 Use nippers or a similar tool to cut out ...

Page 121: ...nstructions supplied with the indoor unit 5 Remove the terminal cover screws then remove the cover At this time take care not to drop the cover Fig 8 6 Pull in the wire harness from the remote controller as shown in Fig 8 b Remove the putty before wiring After wiring make sure to restore the putty 7 Insert the wire harness 4P terminal into the control box PCB connector RC Fig 8 a 8 Install the ter...

Page 122: ... remote controller Fig 9 This starts the fan producing uncooled forced air with the 3 indicator lamps OPERATION lamp TIMER lamp and HIGH POWER lamp on the main unit blinking Fig 11 After 3 minutes the system shifts into cooling operation and cool air will start to be felt Cooling mode test run is unaffected by the room tempera ture 3 Press the ON OFF operation button of the remote controller again...

Page 123: ...YO Commercial Solutions A Division of SANYO North America Corporation 1300 Michael Drive Suite A Wood Dale IL 60191 U S A Sanyo Canada Inc 1 300 Applewood Crescent Concord Ontario L4K 5C7 CANADA Oct 2008 T ...

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Sanyo CH1271, Technical & Service Manual

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