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UNIT COMBINATION TABLES

APPENDIX B

Be sure to operate the air conditioning system only when 2 or

more indoor units have been installed. If operated with only a

single unit installed, the returning fluid to the compressor may

cause a malfunction.

NOTE

List of Combination Tables

Name of Combination Table

3-Room Outdoor Unit Combination Table

4-Room Outdoor Unit Combination Table

Model No. of Outdoor Unit

CM1972

CM2472

CM3172

Remarks

OI-852-6-4180-818-00-4

OI-852-6-4180-819-00-4

OI-852-6-4180-820-00-4

A-2

Содержание CLM1972

Страница 1: ...ANUAL OUTDOOR UNIT CM1972 CM2472 CM3172 DC INVERTER MULTI SYSTEM AIR CONDITIONER Destination North America Product Code No 1 852 330 27 1 852 330 28 1 852 330 29 REFERENCE NO SM700666 04 Capacity at 230V 19 700 BTU h 25 400 BTU h 30 600 BTU h Outdoor Model No CM1972 CM2472 CM3172 NOTE CM1972 CM2472 CM3172 For details about the combination refer to Unit Combination Table in the Appendix of this man...

Страница 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...

Страница 3: ...unctions 7 2 Protective Functions 8 TROUBLESHOOTING 8 1 Precautions before Performing Inspection or Repair 8 2 Trouble Diagnosis by Error Monitop Lamps 8 3 Checking the Outdoor System 8 4 Trouble Diagnosis of Each Part 8 5 Trouble Diagnosis of Fan Motor 9 REFRIGERANT R410A SPECIAL PRECAUTIONS WHEN SERVICING UNIT 9 1 Characteristics of New Refrigerant R410A 9 2 Checklist before Servicing 9 3 Tools ...

Страница 4: ...3172 Multi Outdoor Unit Indoor Unit 3 Room 4 Room 4 Room KMS0772 YES YES YES YES YES YES YES YES YES YES YES YES NO YES YES KMS0972 KMS1272 KMS1872 KMS2472 NOTE The table lists the wall mounted type of indoor units as representative models 4 ...

Страница 5: ...95 F D B 71 F W B 67 F D B 57 F W B 1 OPERATING RANGE Maximum Minimum 115 F D B 67 F D B Temperature Indoor Air Intake Temp Outdoor Air Intake Temp Cooling 5 ...

Страница 6: ...ulti Outdoor Unit Outdoor Unit inch 187 to 253 Dimensions Weight Refrigerant Tubing Connections Unit Dimensions Electrical Rating Sensible Capacity Latent Capacity W Power Input V A Available Voltage Range Running Amperes Operation Sound High Cool Narrow tube Wide tube Refrigerant inch mm Tube Diameter inch mm 138 9 147 7 12 71 63 0 67 0 0 36 33 27 32 40 5 8 16 1 4 860 1 032 413 740 900 320 Outdoo...

Страница 7: ...door Unit inch 187 to 253 Dimensions Weight Refrigerant Tubing Connections Unit Dimensions Electrical Rating Sensible Capacity Latent Capacity W Power Input V A Available Voltage Range Running Amperes Operation Sound High Cool Narrow tube Wide tube Refrigerant inch mm Tube Diameter inch mm 138 9 147 7 12 71 63 0 67 0 0 36 33 27 32 40 5 8 16 1 4 860 1 032 413 740 900 320 Outdoor Unit 29 1 8 35 7 16...

Страница 8: ... Unit inch 187 to 253 Dimensions Weight Refrigerant Tubing Connections Unit Dimensions Electrical Rating Sensible Capacity Latent Capacity W Power Input V A Available Voltage Range Running Amperes Operation Sound High Cool Narrow tube Wide tube Refrigerant inch mm Tube Diameter inch mm 138 9 147 7 12 71 63 0 67 0 0 36 33 27 32 40 5 8 16 1 4 860 1 032 413 740 900 320 Outdoor Unit 29 1 8 35 7 16 12 ...

Страница 9: ... Unit inch 187 to 253 Dimensions Weight Refrigerant Tubing Connections Unit Dimensions Electrical Rating Sensible Capacity Latent Capacity W Power Input V A Available Voltage Range Running Amperes Operation Sound High Cool Narrow tube Wide tube Refrigerant inch mm Tube Diameter inch mm 138 9 147 7 12 71 63 0 67 0 0 36 33 27 32 40 5 8 16 1 4 860 1 032 413 740 900 320 Outdoor Unit 29 1 8 35 7 16 12 ...

Страница 10: ...it inch 187 to 253 Dimensions Weight Refrigerant Tubing Connections Unit Dimensions Electrical Rating Sensible Capacity Latent Capacity W Power Input V A Available Voltage Range Running Amperes Operation Sound High Cool Narrow tube Wide tube Refrigerant inch mm Tube Diameter inch mm 174 2 183 0 15 18 79 0 83 0 0 43 39 3 4 40 5 8 16 1 4 1 010 1 032 413 890 900 320 Outdoor Unit 35 1 32 35 7 16 12 19...

Страница 11: ...it inch 187 to 253 Dimensions Weight Refrigerant Tubing Connections Unit Dimensions Electrical Rating Sensible Capacity Latent Capacity W Power Input V A Available Voltage Range Running Amperes Operation Sound High Cool Narrow tube Wide tube Refrigerant inch mm Tube Diameter inch mm 174 2 183 0 15 18 79 0 83 0 0 43 39 3 4 40 5 8 16 1 4 1 010 1 032 413 890 900 320 Outdoor Unit 35 1 32 35 7 16 12 19...

Страница 12: ...ut Compressor Coil Resistance Ambient Temp 68 F 20 C Ohm DC Twin Rotary Hermetic 5KD240XAB21 1 700W U V V W W U 0 720 0 708 0 726 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 7LN115 Model Operation Temp Open 239 F 115 C Close 212 F 100 C 1 D...

Страница 13: ...nal Output Compressor Coil Resistance Ambient Temp 68 F 20 C Ohm DC Twin Rotary Hermetic 5KD240XAB21 1 700W U V V W W U 0 720 0 708 0 726 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 7LN115 Model Operation Temp Open 239 F 115 C Close 212 F 1...

Страница 14: ...nal Output Compressor Coil Resistance Ambient Temp 68 F 20 C Ohm DC Twin Rotary Hermetic 5JD420XAB22 3 000W U V V W W U 0 435 0 441 0 452 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 7LN115 Model Operation Temp Open 239 F 115 C Close 212 F 1...

Страница 15: ...ure F C 2 3 Other Component Specifications CM1972 CM2472 CM3172 Sensor Name Compressor temp sensor TKS293B Model No of sensor 1 1 Quantity of Sensor 1 Outdoor air temp sensor Outdoor heat exchanger sensor AW AN sensor BW BN sensor CW CN sensor DW DN sensor TKS295B TKS292B TKS292B TKS292B TKS292B TKS292B Model No of sensor Sensor Name 1 1 1 1 1 1 1 1 0 Quantity of Sensor 1 1 1 1 1 1 1 1 1 1 1 1 1 1...

Страница 16: ... 1 4 6 35 3 4 7 16 5 29 32 2 27 32 2 3 4 2 1 32 4 1 2 2 15 16 2 3 4 29 1 8 740 23 32 1 13 16 35 7 16 900 23 15 16 5 11 32 15 32 12 19 32 320 13 19 32 14 17 32 11 17 32 I D 2 3 3 2 2 I D 1 5 1 6 1 3 8 2 15 16 2 1 16 3 DIMENSIONAL DATA Outdoor Unit CM1972 Unit inch mm 16 ...

Страница 17: ...e service valve dia 1 2 12 70 1 4 7 16 5 29 32 2 27 32 2 3 4 2 3 4 2 1 32 4 1 2 2 15 16 2 3 4 2 3 4 29 1 8 740 23 32 1 13 16 35 7 16 900 23 15 16 5 11 32 15 32 12 19 32 320 13 19 32 14 17 32 11 17 32 I D 2 3 3 2 2 I D 1 5 1 6 1 3 8 2 15 16 2 1 16 2 13 32 Outdoor Unit CM2472 Unit inch mm 17 ...

Страница 18: ...e service valve dia 1 2 12 70 2 4 7 16 5 29 32 2 7 8 2 3 4 2 3 4 2 1 32 4 1 2 2 15 16 2 3 4 2 3 4 35 1 32 890 23 32 1 13 16 35 7 16 900 23 15 16 5 11 32 15 32 12 19 32 320 13 19 32 14 17 32 11 17 32 I D 2 3 3 2 2 I D 1 5 1 6 1 3 8 2 15 16 2 1 16 2 13 32 Outdoor Unit CM3172 Unit inch mm 18 ...

Страница 19: ... 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 nar...

Страница 20: ... After a tube has been insulated never try to bend it into a narrow curve because it can cause the tube to break or crack Wide tube Thickness Min 5 16 8 mm Insulation Narrow tube Thickness Min 5 16 8 mm IMPORTANT CAUTION Service valve on narrow tube Electric expansion valve Service valve on wide tube DN CN BN AN DW CW BW AW O D 1 4 O D 1 4 O D 1 4 O D 1 4 O D 3 8 O D 3 8 O D 3 8 O D 1 2 Cooling cy...

Страница 21: ... 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 narrow curve because it can cause the tube to break or crack Wide tube Thickne...

Страница 22: ... of 24 6t 7 5m If the tubing length is different the performance chart will vary NOTE Low pressure at wide tube service valve psig MPaG Outdoor air temperature F C 174 1 2 188 1 3 160 1 1 146 1 0 77 25 86 30 95 35 104 40 Lo fan Hi fan HH fan Operating current A Outdoor air temperature F C 4 5 3 2 Lo fan Hi fan HH fan Indoor discharge air temperature F C Outdoor air temperature F C 46 4 8 68 0 20 6...

Страница 23: ...he performance is for a tubing length of 24 6ft 7 5m If the tubing length is different the performance chart will vary NOTE Low pressure at wide tube service valve psig MPaG Outdoor air temperature F C Lo fan Hi fan Operating current A Outdoor air temperature F C 5 6 4 3 Lo fan Hi fan Indoor discharge air temperature F C Outdoor air temperature F C Lo fan Hi fan Outdoor Unit CM1972 Indoor Unit KMS...

Страница 24: ...s where performance is not being checked The performance is for a tubing length of 24 6ft 7 5m If the tubing length is different the performance chart will vary NOTE Low pressure at wide tube service valve psig MPaG Outdoor air temperature F C Lo fan Hi fan Operating current A Outdoor air temperature F C 5 6 4 3 Lo fan Hi fan Indoor discharge air temperature F C Outdoor air temperature F C Lo fan ...

Страница 25: ...he performance is for a tubing length of 24 6ft 7 5m If the tubing length is different the performance chart will vary NOTE Low pressure at wide tube service valve psig MPaG Outdoor air temperature F C 160 1 1 174 1 2 146 1 0 132 0 9 Lo fan Hi fan Operating current A Outdoor air temperature F C 7 8 6 5 Lo fan Hi fan Indoor discharge air temperature F C Outdoor air temperature F C Lo fan Hi fan Out...

Страница 26: ...s for a tubing length of 24 6t 7 5m If the tubing length is different the performance chart will vary NOTE Low pressure at wide tube service valve psig MPaG Outdoor air temperature F C 174 1 2 188 1 3 160 1 1 146 1 0 77 25 86 30 95 35 104 40 Lo fan Hi fan HH fan Operating current A Outdoor air temperature F C 4 5 3 2 Lo fan Hi fan HH fan Indoor discharge air temperature F C Outdoor air temperature...

Страница 27: ...he performance is for a tubing length of 24 6ft 7 5m If the tubing length is different the performance chart will vary NOTE Low pressure at wide tube service valve psig MPaG Outdoor air temperature F C Lo fan Hi fan Operating current A Outdoor air temperature F C 5 6 4 3 Lo fan Hi fan Indoor discharge air temperature F C Outdoor air temperature F C Lo fan Hi fan Outdoor Unit CM2472 Indoor Unit KMS...

Страница 28: ...s where performance is not being checked The performance is for a tubing length of 24 6ft 7 5m If the tubing length is different the performance chart will vary NOTE Low pressure at wide tube service valve psig MPaG Outdoor air temperature F C Lo fan Hi fan Operating current A Outdoor air temperature F C 5 6 4 3 Lo fan Hi fan Indoor discharge air temperature F C Outdoor air temperature F C Lo fan ...

Страница 29: ...he performance is for a tubing length of 24 6ft 7 5m If the tubing length is different the performance chart will vary NOTE Low pressure at wide tube service valve psig MPaG Outdoor air temperature F C 160 1 1 174 1 2 146 1 0 132 0 9 Lo fan Hi fan Operating current A Outdoor air temperature F C 7 8 6 5 Lo fan Hi fan Indoor discharge air temperature F C Outdoor air temperature F C Lo fan Hi fan Out...

Страница 30: ...he performance is for a tubing length of 24 6ft 7 5m If the tubing length is different the performance chart will vary NOTE Low pressure at wide tube service valve psig MPaG Outdoor air temperature F C 160 1 1 174 1 2 146 1 0 132 0 9 Lo fan Hi fan Operating current A Outdoor air temperature F C 8 9 7 6 Lo fan Hi fan Indoor discharge air temperature F C Outdoor air temperature F C Lo fan Hi fan Out...

Страница 31: ...ubing length of 24 6ft 7 5m If the tubing length is different the performance chart will vary NOTE Low pressure at wide tube service valve psig MPaG Outdoor air temperature F C 146 1 0 174 1 2 118 0 8 90 0 6 Lo fan Hi fan Hi fan HH fan Operating current A Outdoor air temperature F C 4 5 3 Indoor discharge air temperature F C Outdoor air temperature F C Outdoor Unit CM3172 Indoor Unit KMS0772 1 5 1...

Страница 32: ...mance is for a tubing length of 24 6ft 7 5m If the tubing length is different the performance chart will vary NOTE Low pressure at wide tube service valve psig MPaG Outdoor air temperature F C 146 1 0 174 1 2 118 0 8 90 0 6 Lo fan Hi fan Hi fan HH fan Operating current A Outdoor air temperature F C 4 5 3 Indoor discharge air temperature F C Outdoor air temperature F C Outdoor Unit CM3172 Indoor Un...

Страница 33: ...ance is for a tubing length of 24 6ft 7 5m If the tubing length is different the performance chart will vary NOTE Low pressure at wide tube service valve psig MPaG Outdoor air temperature F C 146 1 0 174 1 2 118 0 8 90 0 6 Lo fan Hi fan Hi fan HH fan Operating current A Outdoor air temperature F C 4 5 6 3 Indoor discharge air temperature F C Outdoor air temperature F C Outdoor Unit CM3172 Indoor U...

Страница 34: ...where performance is not being checked The performance is for a tubing length of 24 6ft 7 5m If the tubing length is different the performance chart will vary NOTE Low pressure at wide tube service valve psig MPaG Outdoor air temperature F C Lo fan Hi fan Operating current A Outdoor air temperature F C 6 5 7 8 9 4 Indoor discharge air temperature F C Outdoor air temperature F C Outdoor Unit CM3172...

Страница 35: ...here performance is not being checked The performance is for a tubing length of 24 6ft 7 5m If the tubing length is different the performance chart will vary NOTE Low pressure at wide tube service valve psig MPaG Outdoor air temperature F C Lo fan Hi fan Operating current A Outdoor air temperature F C 9 8 10 11 12 Indoor discharge air temperature F C Outdoor air temperature F C Outdoor Unit CM3172...

Страница 36: ...890 15 940 TC 20 790 20 060 19 290 18 720 17 800 16 820 72 22 2 SHC 14 210 13 870 13 530 13 360 13 010 12 670 63 76 24 4 SHC 17 130 16 960 16 610 16 270 15 930 15 590 17 2 80 26 7 SHC 20 390 20 040 19 290 18 720 17 800 16 820 84 28 9 SHC 20 790 20 060 19 290 18 720 17 800 16 820 88 31 1 SHC 20 790 20 060 19 290 18 720 17 800 16 820 TC 21 790 21 050 20 240 19 700 18 750 17 720 72 22 2 SHC 10 960 10...

Страница 37: ...6 810 25 900 24 910 24 290 23 110 17 700 72 22 2 SHC 16 790 16 440 15 930 15 760 15 240 13 010 63 76 24 4 SHC 19 700 19 360 19 010 18 670 18 160 15 930 17 2 80 26 7 SHC 22 960 22 440 22 100 21 760 21 240 17 700 84 28 9 SHC 25 870 25 530 24 910 24 290 23 110 17 700 88 31 1 SHC 26 810 25 900 24 910 24 290 23 110 17 700 TC 27 910 26 980 25 970 25 400 24 180 18 070 72 22 2 SHC 13 360 13 010 12 500 12 ...

Страница 38: ...490 31 280 29 960 29 310 23 400 16 970 72 22 2 SHC 21 010 20 550 19 870 19 640 17 120 14 610 63 76 24 4 SHC 24 900 24 440 23 980 23 520 21 240 16 970 17 2 80 26 7 SHC 29 010 28 550 28 100 27 640 23 400 16 970 84 28 9 SHC 32 490 31 280 29 960 29 310 23 400 16 970 88 31 1 SHC 32 490 31 280 29 960 29 310 23 400 16 970 TC 33 790 32 540 31 170 30 600 23 770 17 200 72 22 2 SHC 16 440 15 980 15 290 15 07...

Страница 39: ...L1 FERRITE CORE WHT WHT BLK RED BLU BLK WHT BLK WHT GND A INDDOR UNIT B INDDOR UNIT TO INDDOR UNIT C INDDOR UNIT 5 5 5 4 4 3 3 2 2 1 1 5 4 4 3 3 2 2 1 1 GRY BLK YEL RED ORG MV1 MAGNETIC COIL MV1 5 5 5 4 4 3 3 2 2 1 1 5 4 4 3 3 2 2 1 1 GRY BLK YEL RED ORG BLK 1 1 1 WHT 2 2 2 RED 3 3 3 BLU 4 4 4 KS22 CN02 BLK 1 1 1 WHT 2 2 2 RED 3 3 3 BLU 4 4 4 BLK 5 5 5 WHT 6 6 6 KS23 FM WHT RED BLK S U C W R V CN0...

Страница 40: ...NIT B INDDOR UNIT TO INDDOR UNIT C INDDOR UNIT D INDDOR UNIT 5 5 5 4 4 3 3 2 2 1 1 5 4 4 3 3 2 2 1 1 GRY BLK YEL RED ORG MV1 MAGNETIC COIL MV1 5 5 5 4 4 3 3 2 2 1 1 5 4 4 3 3 2 2 1 1 GRY BLK YEL RED ORG BLK 1 1 1 WHT 2 2 2 RED 3 3 3 BLU 4 4 4 KS22 CN02 BLK 1 1 1 WHT 2 2 2 RED 3 3 3 BLU 4 4 4 BLK 5 5 5 WHT 6 6 6 KS23 FM WHT RED BLK S U C W R V CN03 BLK 1 1 1 WHT 2 2 2 RED 3 3 1 1 2 2 3 3 3 BLU 4 4 ...

Страница 41: ...NIT B INDDOR UNIT TO INDDOR UNIT C INDDOR UNIT D INDDOR UNIT 5 5 5 4 4 3 3 2 2 1 1 5 4 4 3 3 2 2 1 1 GRY BLK YEL RED ORG MV1 MAGNETIC COIL MV1 5 5 5 4 4 3 3 2 2 1 1 5 4 4 3 3 2 2 1 1 GRY BLK YEL RED ORG BLK 1 1 1 WHT 2 2 2 RED 3 3 3 BLU 4 4 4 KS22 CN02 BLK 1 1 1 WHT 2 2 2 RED 3 3 3 BLU 4 4 4 BLK 5 5 5 WHT 6 6 6 KS23 FM WHT RED BLK S U C W R V CN03 BLK 1 1 1 WHT 2 2 2 RED 3 3 1 1 2 2 3 3 3 BLU 4 4 ...

Страница 42: ...e unit remains stopped Positioning of the outdoor unit electric expansion valve is performed The ON OFF operation button on the remote controller is pressed If automatic operation mode has been selected with the remote controller operation begins in SENSOR DRY or COOL mode depending on the room temperature and outdoor temperature at the time operation starts Depending on the operational mode refer...

Страница 43: ...o significant change in the indoor and outdoor temperatures and the previous conditions COOL are stored Starts operating in the same operating mode COOL and with the same temperature settings as before operation was stopped Operation starts after 4 hours or more have passed New operating mode is determined based on the temperature conditions at the time the ON OFF operation button is pressed Stop ...

Страница 44: ... is 59 F or higher and is slightly too cold The compressor operates on a 3 minutes ON 6 minutes OFF cycle to prevent the room temperature from dropping too much DRY operation starts DRY A operation The room temperature is below 59 F When monitoring operation begins the compressor stops and the indoor fan operates at LL very low speed Monitoring operation begins The indoor fan changes between Low a...

Страница 45: ...A Power breakers and fuses will not be tripped Operation can continue during this period with somewhat reduced cooling capacity Operation at normal capacity is restored when the cause of the current rise is eliminated Description of function Example of operation for cooling Frequency Frequency Current Stops operation Approx 3 minutes Power Point C Point B Point A 20A 17A 16 6A Target frequency Ope...

Страница 46: ...e prohibit range Hz reduction F Compressor discharge temperature 194 Within the increase prohibit range the range changes to the Hz reduction range 2 Hz every 30 seconds if the compressor temperature rises by 4 F Operation starts at 8 Hz and the start current is less than the normal operating current This prevents the flickering of fluorescent lights or television screens that occurs when ordinary...

Страница 47: ...n after the power is turned OFF and some time is required for the charge to dissipate Be careful not to touch any electrified parts before the control circuit board Power Lamp red turns OFF If the outdoor control circuit board is normal approximately 180 seconds will be required for the charge to dissipate However allow at least 30 minutes for the charge to dissipate if it is thought there might b...

Страница 48: ... the nature of the trouble Heat Exchanger Rear side P C Board of Electrical Component Box Error Monitor Lamps Front side Fig 1 View from top ERR0 ERR1 ERR2 ERR3 Power Lamp Error Monitor Lamp Error Contents ERR0 ERR1 ERR2 ERR3 Sensor for compressor discharge temp Sensor for heat excharge temp Sensor for branch pipe A Narrow tube Sensor for branch pipe B Narrow tube Sensor for branch pipe C Narrow t...

Страница 49: ...to the COM terminal of TEST T RUN terminals The LED red on the control board must illuminate The compressor and fan motor must turn ON They turn ON about 70 seconds later after the power is turned ON No 1 2 Check items unit operation NOTE If the above check items are okay but the outdoor unit does not operate there may be a faulty connection between the indoor unit and the outdoor unit 49 ...

Страница 50: ... board Diode module HIC Electrolytic capacitor Fuse Compressor Compressor protective sensor Outdoor fan motor Coil thermistor Electric expansion valve Branch tubing temperature sensor 1 2 3 4 5 6 7 Operation lamp blinking Operation lamp does not illuminate Indoor fan dose not turn Outdoor unit does not operate Outdoor fan dose not turn The compressor only does not operate The compressor stops on o...

Страница 51: ... holder Do not remove or insert the outdoor control circuit board connector when power is being supplied to it The controller will be damaged NOTE Problems Inspection points Indoor unit Indoor unit does not operate Breaker Refrigerant gas pressure 8 9 Operation lamp blinking Operation lamp does not illuminate Indoor fan dose not turn Outdoor unit does not operate Outdoor fan dose not turn The comp...

Страница 52: ... to 20 seconds for each point Check the resistance between the gray lead wire and the other wires Resistance is OK if it is 46 4ohm at 68 F Cool the main unit with a damp cloth or other means while welding When applying vacuum use the special service magnet and rotate at least 5 revolutions counterclockwise to fully open the electric expansion valve 1 Approx 46 4 ohm NOTE 1 If you have manually ch...

Страница 53: ...ressure in the low pressure section is 5 MPa or more below the value in the performance charts 2 There is little condensation on the indoor heart exchanger which overall appears dry Distinguishing between refrigerant shortage and refrigerant circuit blockage If the pressure in the low pressure section does not change when the circuit is charged 2 to 3 times with refrigerant gas 0 44 lbs each time ...

Страница 54: ...back 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 identify whether the trouble is outdoor unit controller trouble or motor trouble Therefore first...

Страница 55: ...e 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 wh...

Страница 56: ...en 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 9 2 Checklist before Servicing Use a clutch type...

Страница 57: ...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...

Страница 58: ...t 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 if...

Страница 59: ...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...

Страница 60: ...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...

Страница 61: ...R410A for existing units which use R22 This will cause the air conditioner to operate improperly and may result in a hazardous condition 9 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 Follo...

Страница 62: ...INSTALLATION INSTRUCTIONS CM1972 CM2472 CM3172 II 852 6 4190 214 00 3 APPENDIX A A 1 ...

Страница 63: ...tions for the Outdoor Unit 6 TEST RUN 25 7 CONNECTING A HOME AUTOMATION DEVICE 26 8 INSTALLATION CHECK SHEET 26 INSTALLATION INSTRUCTIONS Model Combinations Combine indoor and outdoor units only as listed below Indoor Unit Outdoor Unit KMS0772 CM1972 KMS0972 CM2472 KMS1272 CM3172 KMS1872 CLM1972 KMS2472 CLM2472 CLM3172 Combine indoor and outdoor units only as listed in the combination tables for 3...

Страница 64: ...n 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 metal frame to provide ad...

Страница 65: ...chase these materials separately from a local source you will need 1 Deoxidized annealed copper tube for refrigerant tub ing as detailed in Table 2 Cut each tube to the appropriate lengths 1 to 1 4 30 cm to 40 cm to dampen vibration between units Table 2 2 Foamed polyethylene insulation for the specified copper tubes as required to precise length of tubing Wall thickness of the insulation should b...

Страница 66: ...tion that will hold the weight of the unit G select a location where tubing and drain hose have the shortest run to the outside Fig 1 G allow room for operation and maintenance as well as unrestricted air flow around the unit Fig 2 G install the unit within the maximum elevation difference H1 H2 H3 H4 above or below the outdoor unit and within a total tubing length L1 L2 L3 L1 L2 L3 L4 from the ou...

Страница 67: ... refrigerant R410A by 0 22 oz ft No additional charge of compressor oil is necessary For more detailed charging information refer to the Technical Service Manual Max Max Allowable Total Limit of Limit of Elevation Required Amount Allowable Tubing Length Total Tubing Length Difference of Additional Model Tubing Length at shipment L1 L2 L3 or H1 H2 H3 H4 Refrigerant per unit L1 L2 L3 or L1 L2 L3 L4 ...

Страница 68: ... Reducer C B A KMS0772 KMS0972 KMS1272 KMS0772 KMS0972 KMS1272 D Outdoor unit Indoor unit KMS0772 KMS0972 KMS1272 KMS0772 KMS0972 KMS1272 1 2 12 70mm 3 8 9 52mm 3 8 9 52mm 3 8 9 52mm 3 8 9 52mm 3 8 9 52mm 3 8 9 52mm 3 8 9 52mm 1 4 6 35mm 1 4 6 35mm 1 4 6 35mm 1 4 6 35mm 2 Connecting indoor unit for CM2472 CLM2472 A Fig 4a 3 8 9 52mm 3 8 9 52mm 1 4 6 35mm 1 4 6 35mm 1 4 6 35mm 3 8 9 52mm 3 8 9 52mm...

Страница 69: ... unit Indoor unit KMS0772 KMS0972 KMS1272 KMS2472 Union 1 2 12 70mm Flare 3 8 9 52mm 3 8 9 52mm 1 2 12 70mm Locally purchased 1 2 12 70mm 1 2 12 70mm 5 8 15 88mm 3 8 9 52mm 3 8 9 52mm 3 8 9 52mm 3 8 9 52mm 3 8 9 52mm 1 4 6 35mm 1 4 6 35mm 1 4 6 35mm 1 4 6 35mm C Fig 4e Union 5 8 15 88mm Flare 1 2 12 70mm 1 2 12 70mm 5 8 15 88mm Locally purchased C B A KMS0772 KMS0972 KMS1272 KMS0772 KMS0972 KMS127...

Страница 70: ...72 CLM3172 B Fig 4h Union 3 8 9 52mm Flare 1 2 12 70mm 1 2 12 70mm 3 8 9 52mm Supplied Reducer C B A KMS0772 KMS0972 KMS1272 KMS0772 KMS0972 KMS1272 D Outdoor unit Indoor unit KMS0772 KMS0972 KMS1272 KMS1872 1 2 12 70mm 1 2 12 70mm 1 2 12 70mm 3 8 9 52mm 3 8 9 52mm 3 8 9 52mm 3 8 9 52mm 3 8 9 52mm 1 4 6 35mm 1 4 6 35mm 1 4 6 35mm 1 4 6 35mm C Fig 4i C B A KMS1872 KMS0772 KMS0972 KMS1272 D Outdoor ...

Страница 71: ...ied Reducer 1 2 12 70mm 1 2 12 70mm 5 8 15 88mm 3 8 9 52mm 3 8 9 52mm 3 8 9 52mm 3 8 9 52mm 3 8 9 52mm 1 4 6 35mm 1 4 6 35mm 1 4 6 35mm 1 4 6 35mm E Fig 4k Union 5 8 15 88mm Flare 1 2 12 70mm 1 2 12 70mm 5 8 15 88mm Locally purchased C B A KMS1872 KMS0772 KMS0972 KMS1272 D Outdoor unit Indoor unit KMS0772 KMS0972 KMS1272 KMS2472 1 2 12 70mm 1 2 12 70mm 5 8 15 88mm 3 8 9 52mm 3 8 9 52mm 1 2 12 70mm...

Страница 72: ...the outdoor unit is installed in a position exposed to strong wind such as seasonal winds with low air tempera ture in winter baffle plates must be installed on the outdoor unit Fig 5f This unit is designed so that the fan of the outdoor unit runs at low speed when the air conditioner is operated at low outdoor air temperatures When the outdoor unit is exposed to strong wind the system pressure dr...

Страница 73: ...15 657 7 5 10 150 20 20 CLM3172 inch 25 3 16 25 32 1 3 8 30 29 32 13 25 32 13 25 32 25 64 25 32 19 32 31 25 32 19 64 25 64 5 29 32 25 32 25 32 mm 640 20 35 785 350 350 10 20 15 807 7 5 10 150 20 20 Dimensions A B C D E F G H I J K Model CLM1972 2472 inch 22 1 16 23 1 32 13 25 32 5 29 32 19 9 32 1 3 8 2 5 32 18 5 16 2 3 8 3 11 32 31 32 3172 mm 560 585 350 150 490 35 55 465 60 85 25 Air Intake Baffl...

Страница 74: ... side L and R from the unit and drill 4 holes of ø1 4 inch 6 5 mm at the prescribed positions 2 Install the windbaffle on the unit using field supply bolts and nuts 3 Recommended bolts to be used are 15 64 M6 ISO standard and the recommended length of the bolts is between 13 32 19 32 inch 10 15 mm 4 Use washers and spring washers to tightly fasten the windbaffle to the unit 4 Precautions for insta...

Страница 75: ... 32 2 3 4 4 7 16 2 15 16 2 3 4 Service valve on narrow tube side Outer diameter 1 4 6 35 Service valve on wide tube side Outer diameter 3 8 9 52 Service valve on wide tube side Outer diameter 1 2 12 70 A 23 32 Fig 6c 23 15 16 15 32 12 19 32 13 19 32 14 17 32 5 11 32 35 7 16 900 23 32 35 1 32 890 2 29 32 2 1 16 1 13 16 2 13 32 4 1 2 2 1 32 4 7 16 5 29 32 2 15 16 2 27 32 2 3 4 2 3 4 A Service valve ...

Страница 76: ...e spaces that are required in order to maintain performance Install in a location where the dimensions indicated by are ensured and where 2 or more faces of the unit are unobstructed In principle the top direction should be unobstructed Indoor unit C Indoor unit B Indoor unit A Indoor unit D Service space Power breaker Ground wire not provided Ensure 6 15cm of space if a drain hose is to be used B...

Страница 77: ... faults do not allow the wire ends to contact rainwater or be subject to dew condensation Deburring Before After Fig 8 3 2 Use of the Flaring Method Many of the conventional split system air conditioners employ the flaring method to connect refrigerant tubes which run between indoor and outdoor units In this method the copper tubes are flared at each end and connected with flare nuts 3 3 Flaring P...

Страница 78: ...re tube straight with each other then screw in the flare nut lightly at first to obtain a smooth match Fig 13 3 5 Tubing Connections a Temporary connection Screw in 3 5 rotations by hand Fig 14 b To fasten the flare nuts apply specified torque as Table 4 NOTE NOTE Reamer Copper tubing Fig 9 Flare tool Flare nut Copper tubing Fig 11 Fig 10 Apply refrigerant lubricant here and here Fig 12 Flare nut ...

Страница 79: ... every 47 120 cm Do not wind the armoring tape too tightly since this will decrease the heat insulation effect Also be sure the con densation drain hose splits away from the bundle and drips clear of the unit and the tubing 3 8 Finishing the Installation After finishing insulating and taping over the tubing use sealing putty to seal off the hole in the wall to prevent rain and draft from entering ...

Страница 80: ... valve Fig 20 Fig 20 CAUTION Be sure to use a manifold valve for air purging If it is not available use a stop valve for this purpose The Hi knob of the manifold valve must always be kept closed CAUTION CAUTION Before using the vacuum pump adapter read the vacuum pump adapter manual and use the adapter correctly In order to prevent charging errors with A C that uses R410A the screw diameter at the...

Страница 81: ...en apply the vacuum again 6 With a hex wrench turn the valve stem on the nar row tube service valve counter clockwise by 90 degrees 1 4 turn for 10 seconds and then turn the stem clockwise to close it again 7 With a standard screwdriver turn the wide tube service valve stem counterclockwise to fully open the valve 8 Turn the narrow tube service valve stem counter clockwise to fully open the valve ...

Страница 82: ...lem 4 Disconnect the manifold gauge and the inter unit tubes and attach the caps and flare nuts At this point pump down is com pleted If the caps and flare nuts are not reattached there is the danger of gas leakage Refer to Fig 24 If pump down is not possible If the A C cannot be operated because of a malfunction or other cause use a refrigerant recovery device to recover the refrigerant In order ...

Страница 83: ...ernal wiring can be very dangerous The manufacturer will accept no responsibility for any damage or misoperation that occurs as a result of such unauthorized changes 5 2 Recommended Wire Length and Diameter Regulations on wiring diameter differ from locality to locality For field wiring requirements please refer to your local elec trical codes Carefully observe these regulations when car rying out...

Страница 84: ...other grounds and do not have it shared with other electric appliances WARNING Fig 25a Fig 25b 4 indoor units with CM2472 CLM2472 CM3172 CLM3172 1 2 3 Terminal INDOOR UNIT 1 2 3 INDOOR UNIT 1 2 3 1 UNIT B 2 3 4 UNIT C 5 6 7 8 9 1 2 Terminal Terminal L1 L2 INDOOR UNIT UNIT A A B C Terminal 2P Terminal 9P OUTDOOR UNIT Disconnect switch 230 208V 230 208V 230 208V 230 208V 230 208V 230 208V 230 208V 2...

Страница 85: ...Shape the loop wire properly place it on the termi nal plate and fix it securely with the removed termi nal screw using a screwdriver I For stranded wiring 1 Cut the wire end with a cutting pliers then strip the insulation to expose the stranded wiring about 3 8 10 mm and tightly twist the wire ends Figs 28 and 29 2 Using a screwdriver remove the terminal screw s on the terminal plate 3 Using a ri...

Страница 86: ...with refrigerant tubing that is connected to service valve A top of the outdoor unit refrigerant tubing that is connected to service valve B top of the outdoor unit B is the indoor unit with refrigerant tubing that is connected to service valve C top of the outdoor unit C is the indoor unit with refrigerant tubing that is connected to service valve D top of the outdoor unit D is the indoor unit wi...

Страница 87: ...ing a test run G Refer to the test run procedures in the indoor unit installation manual G Perform the test run separately for each connected indoor unit If 2 units are operated simultaneously it is not possible to correctly check for errors in tubing and wiring Checking tubing and wiring Perform the test run and check that operation is normal If there is an error in tubing or wiring the refrigera...

Страница 88: ...les are securely fastened to the terminal board Inter unit cables are securely fixed The power cord and inter unit cables are not connected anywhere along their paths The ground wire is securely connected An air purge of the refrigerant circuit has been conducted A leak test of the tubing connections has been performed Thermal insulation has been applied to the tubing connections Drain connections...

Страница 89: ... installed the returning fluid to the compressor may cause a malfunction NOTE List of Combination Tables Name of Combination Table 3 Room Outdoor Unit Combination Table 4 Room Outdoor Unit Combination Table 4 Room Outdoor Unit Combination Table Model No of Outdoor Unit CM1972 CM2472 CM3172 Remarks OI 852 6 4180 818 00 4 OI 852 6 4180 819 00 4 OI 852 6 4180 820 00 4 A 2 ...

Страница 90: ...se units concurrently may result in trouble At a time like this shut down at least one of the 3 indoor units to match one of the combinations found in the 2 room operation column of Table 1 In this case all the indoor units installed must not be operated concurrently under any circumstances Otherwise the air conditioner may not run properly and trouble may occur Be sure to operate the air conditio...

Страница 91: ...659 12941 19600 7100 19700 11900 11900 23800 9350 9350 18700 6800 19700 11900 17500 29400 7971 11729 19700 7100 19700 7500 7500 7500 22500 6133 6133 6133 18400 8500 19700 7500 7500 9000 24000 5835 5835 7029 18700 9800 19700 7500 7500 11900 26900 5458 5458 8684 19600 9800 19700 7500 7500 17500 32500 4538 4538 10624 19700 9800 19700 7500 9000 9000 25500 5779 6961 6961 19700 9800 19700 7500 9000 1190...

Страница 92: ... 19700 11900 11900 23800 9350 9350 18700 6800 19700 11900 17500 29400 7971 11729 19700 7100 19700 7500 7500 7500 22500 6133 6133 6133 18400 8500 19700 7500 7500 9000 24000 5835 5835 7029 18700 9800 19700 7500 7500 11900 26900 5458 5458 8684 19600 9800 19700 7500 7500 17500 32500 4538 4538 10624 19700 9800 19700 7500 9000 9000 25500 5779 6961 6961 19700 9800 19700 7500 9000 11900 28400 5190 6252 82...

Страница 93: ...n trouble At a time like this shut down at least one of the 4 indoor units to match one of the combinations found in the 3 room operation column of Table 1 4 Room Outdoor Unit Combination Table In this case all the indoor units installed must not be operated concurrently under any circumstances Otherwise the air conditioner may not run properly and trouble may occur CAUTION C x 2 200 K1 K2 25400 x...

Страница 94: ...33 22000 8500 25400 7500 7500 9000 24000 7177 7177 8645 23000 9800 25400 7500 7500 11900 26900 7073 7073 11253 25400 9800 25400 7500 7500 17500 32500 5851 5851 13697 25400 9800 25400 7500 9000 9000 25500 7099 8551 8551 24200 9800 25400 7500 9000 11900 28400 6692 8061 10647 25400 9800 25400 7500 9000 17500 34000 5588 6731 13081 25400 9800 25400 7500 11900 11900 31300 6074 9663 9663 25400 9800 25400...

Страница 95: ...7500 7500 9000 24000 7177 7177 8645 23000 9800 24200 7500 7500 11900 26900 6739 6739 10722 24200 9800 24400 7500 7500 17500 32500 5575 5575 13050 24200 9800 24400 7500 9000 9000 25500 7099 8551 8551 24200 9800 24200 7500 9000 11900 28400 6429 7744 10228 24400 9800 24400 7500 9000 17500 34000 5368 6466 12566 24400 9800 24400 7500 11900 11900 31300 5835 9283 9283 24400 9800 24400 7500 11900 17500 36...

Страница 96: ...of the combinations found in the 3 room operation column of Table 1 4 Room Outdoor Unit Combination Table In this case all the indoor units installed must not be operated concurrently under any circumstances Otherwise the air conditioner may not run properly and trouble may occur Be sure to operate the air conditioning system only when 2 or more indoor units have been installed If operated with on...

Страница 97: ...00 9000 11900 11900 32800 7848 10376 10376 28600 9200 29200 9000 11900 17500 38400 6844 9049 13307 29200 9800 30600 9000 11900 24200 45100 5827 7705 15668 29200 9800 30600 9000 17500 17500 44000 5973 11614 11614 29200 9800 30600 11900 11900 11900 35700 9267 9267 9267 27800 9800 29000 11900 11900 17500 41300 8414 8414 12373 29200 9800 30600 11900 11900 24200 48000 7239 7239 14722 29200 9800 30600 1...

Страница 98: ... 11900 32800 6805 8998 8998 24800 9200 26200 9000 11900 17500 38400 6469 8553 12578 27600 9800 27600 9000 11900 24200 45100 5508 7282 14810 27600 9800 27600 9000 17500 17500 44000 5645 10977 10977 27600 9800 27600 11900 11900 11900 35700 8467 8467 8467 25400 9800 27600 11900 11900 17500 41300 7953 7953 11695 27600 9800 27600 11900 11900 24200 48000 6843 6843 13915 27600 9800 27600 11900 17500 1750...

Страница 99: ...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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