DC INVERTER MULTI-SYSTEM AIR CONDITIONER

Transcription

1 TECHNICAL & SERVICE MANUAL OUTDOOR UNIT : CM97 CM7 CM7 FILE NO. Destination: North America DC INVERTER MULTI-SYSTEM AIR CONDITIONER Capacity at 0V 9,700 BTU/h,00 BTU/h 0,600 BTU/h Outdoor Model No. CM97 CM7 CM7 Product Code No CM97 < Applicable Indoor Units > Wall mounted type KMS077 KMS097 KMS7 KMS87 KMS7 NOTE CM7 For details about the combination, refer to "Unit Combination Table" in the Appendix of this manual. CM7 IMPORTANT These air conditioners employ new refrigerant R0A. Pay special attention when servicing the unit. REFERENCE NO. SM

2 Important! Please Read Before Starting This air conditioning system meets strict safety and operating standards. As the installer or service person, it is an important part of your job to install or service the system so it operates safely and efficiently. For safe installation and trouble-free operation, you must: Carefully read this instruction booklet before beginning. Follow each installation or repair step exactly as shown. Observe all local, state, and national electrical codes. Pay close attention to all warning and caution notices given in this manual. WARNING CAUTION SPECIAL PRECAUTIONS WARNING When Wiring This symbol refers to a hazard or unsafe practice which can result in severe personal injury or death. This symbol refers to a hazard or unsafe practice which can result in personal injury or product or property damage. If Necessary, Get Help These instructions are all you need for most installation sites and maintenance conditions. If you require help for a special problem, contact our sales/service outlet or your certified dealer for additional instructions. In Case of Improper Installation The manufacturer shall in no way be responsible for improper installation or maintenance service, including failure to follow the instructions in this document. ELECTRICAL SHOCK CAN CAUSE SEVERE PERSONAL INJURY OR DEATH. ONLY A QUALIFIED, EXPERIENCED ELECTRICIAN SHOULD ATTEMPT TO WIRE THIS SYSTEM. Do not supply power to the unit until all wiring and tubing are completed or reconnected and checked. Highly dangerous electrical voltages are used in this system. Carefully refer to the wiring diagram and these instructions when wiring. Improper connections and inadequate grounding can cause accidental injury or death. Ground the unit following local electrical codes. Connect all wiring tightly. Loose wiring may cause overheating at connection points and a possible fire hazard. 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 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 added support. In a Room Properly insulate any tubing run inside a room to prevent "sweating" that can cause dripping and water damage to walls and floors. In Moist or Uneven Locations Use a raised concrete pad or concrete blocks to provide a solid, level foundation for the outdoor unit. This prevents water damage and abnormal vibration. In an Area with High Winds Securely anchor the outdoor unit down with bolts and a metal frame. Provide a suitable air baffle. In a Snowy Area (for Heat Pump-type Systems) Install the outdoor unit on a raised platform that is higher than drifting snow. Provide snow vents. When Connecting Refrigerant Tubing Use the flare method for connecting tubing. Apply refrigerant lubricant to the matching surfaces of the flare and union tubes before connecting them, then tighten the nut with a torque wrench for a leak-free connection. Check carefully for leaks before starting the test run. When Servicing Turn the power off at the main power box (mains) before opening the unit to check or repair electrical parts and wiring. Keep your fingers and clothing away from any moving parts. Clean up the site after you finish, remembering to check that no metal scraps or bits of wiring have been left inside the unit being serviced. Others CAUTION Ventilate any enclosed areas when installing or testing the refrigeration system. Escaped refrigerant gas, on contact with fire or heat, can produce dangerously toxic gas. Confirm upon completing installation that no refrigerant gas is leaking. If escaped gas comes in contact with a stove, gas water heater, electric room heater or other heat source, it can produce dangerously toxic gas.

3 Table of Contents APPLICABLE INDOOR UNITS.... OPERATING RANGE... Page. SPECIFICATIONS -. Unit Specifications Major Component Specifications... Other Component Specifications.... DIMENSIONAL DATA.... REFRIGERANT FLOW DIAGRAM -. Refrigerant Flow Diagram.... PERFORMANCE DATA -. Temperature Charts Cooling Capacity ELECTRICAL DATA 6-. Electric Wiring Diagrams FUNCTIONS 7-. Explanation of Functions Protective Functions TROUBLESHOOTING 8-. Precautions before Performing Inspection or Repair Trouble Diagnosis by Error Monitop Lamps Checking the Outdoor System Trouble Diagnosis of Each Part Trouble Diagnosis of Fan Motor REFRIGERANT R0A: SPECIAL PRECAUTIONS WHEN SERVICING UNIT 9-. Characteristics of New Refrigerant R0A Checklist before Servicing Tools Specifically for R0A Tubing Installation Procedures In Case of Compressor Malfunction In Case Refrigerant is Leaking Charging Additional Refrigerant Retro-Fitting Existing Systems APPENDIX A INSTALLATION INSTRUCTIONS... APPENDIX B UNIT COMBINATION TABLES A- A-

4 APPLICABLE INDOOR UNITS Multi-Outdoor Unit Indoor Unit KMS077 KMS097 KMS7 KMS87 KMS7 -Room CM97 YES YES YES YES NO -Room CM7 YES YES YES YES YES -Room CM7 YES YES YES YES YES NOTE The table lists the wall-mounted type of indoor units as representative models.

5 . OPERATING RANGE Cooling Temperature Indoor Air Intake Temp. Outdoor Air Intake Temp. Maximum 9 F D.B. / 7 F W.B. F D.B. Minimum 67 F D.B. / 7 F W.B. 67 F D.B.

6 . SPECIFICATIONS -. Unit Specifications Outdoor Unit CM97 Indoor Unit KMS097 Type Number of Connectable Indoor Units Number of Operatable Indoor Units Voltage Rating -Room Multi Outdoor Unit 0V Single-Phase 60Hz < 0V > Performance Total Capacity Sensible Capacity Latent Capacity Air Circulation (High) BTU/h kw BTU/h BTU/h ft /min (m /h) 9, Cooling ( 9,800 to 9,700 ) (.90 to.80 ) 6,800,900,707 (,900) Electrical Rating Available Voltage Range V 87 to Running Amperes Power Input A W 7.0,70 Power Factor % 98 SEER BTU/W Compressor Locked Rotor Amperes A.0 Fuse or Circuit Breaker Capacity A 0 Features (Outdoor Unit) Control Microprocessor Fan Speeds Auto (Hi, Me, Lo) Compressor Refrigerant / Amount charged at shipment Ib. (g) DC Twin Rotary (Inverter) R0A / 6.7 (,800) Refrigerant Control Electric Expansion Valve Operation Sound (High) Cool db-a 0 Refrigerant Tubing Connections Flare Type Max. allowable tubing length per unit ft. (m) 8 () Refrigerant Narrow tube inch (mm) / (6.) Tube Diameter Wide tube inch (mm) /8 (9.) Dimensions & Weight (Outdoor Unit) Unit Dimensions Package Dimensions Weight Height Width Depth Height Width Depth Shipping Volume Net Shipping inch (mm) inch (mm) Ib. (kg) Ib. (kg) cu.ft (m ) Cooling 9-/8-7/6-9/ ( ) -7/ 0-/8 6-/ (860,0 ) (6.0) (67.0) (0.6) DATA SUBJECT TO CHANGE WITHOUT NOTICE. Remarks:. The Values shown in performance section and electrical rating section above are based on the following unit combination. For other combination unit, please refer to the "Unit Combination Tables" in this manual. Indoor Unit : KMS097 units Outdoor Unit : CM97 unit. Rating conditions are: Cooling : Indoor air temp. 80 F D.B./ 67 F W.B. Outdoor air temp. 9 F D.B./ 7 F W.B. 6

7 Outdoor Unit CM97 Indoor Unit KMS097 Type Number of Connectable Indoor Units Number of Operatable Indoor Units Voltage Rating -Room Multi Outdoor Unit 08V Single-Phase 60Hz < 08V > Performance Total Capacity Sensible Capacity Latent Capacity Air Circulation (High) BTU/h kw BTU/h BTU/h ft /min (m /h) 9, Cooling ( 9,800 to 9,700 ) (.90 to.80 ) 6,800,900,707 (,900) Electrical Rating Available Voltage Range V 87 to Running Amperes Power Input A W 7.7,70 Power Factor % 98 SEER BTU/W Compressor Locked Rotor Amperes A.0 Fuse or Circuit Breaker Capacity A 0 Features (Outdoor Unit) Control Microprocessor Fan Speeds Auto (Hi, Me, Lo) Compressor Refrigerant / Amount charged at shipment Ib. (g) DC Twin Rotary (Inverter) R0A / 6.7 (,800) Refrigerant Control Electric Expansion Valve Operation Sound (High) Cool db-a 0 Refrigerant Tubing Connections Flare Type Max. allowable tubing length per unit ft. (m) 8 () Refrigerant Narrow tube inch (mm) / (6.) Tube Diameter Wide tube inch (mm) /8 (9.) Dimensions & Weight (Outdoor Unit) Unit Dimensions Package Dimensions Weight Height Width Depth Height Width Depth Shipping Volume Net Shipping inch (mm) inch (mm) Ib. (kg) Ib. (kg) cu.ft (m ) Cooling 9-/8-7/6-9/ ( ) -7/ 0-/8 6-/ (860,0 ) (6.0) (67.0) (0.6) DATA SUBJECT TO CHANGE WITHOUT NOTICE. Remarks:. The Values shown in performance section and electrical rating section above are based on the following unit combination. For other combination unit, please refer to the "Unit Combination Tables" in this manual. Indoor Unit : KMS097 units Outdoor Unit : CM97 unit. Rating conditions are: Cooling : Indoor air temp. 80 F D.B./ 67 F W.B. Outdoor air temp. 9 F D.B./ 7 F W.B. 7

8 Outdoor Unit CM7 Indoor Unit KMS097 Type Number of Connectable Indoor Units Number of Operatable Indoor Units Voltage Rating -Room Multi Outdoor Unit 0V Single-Phase 60Hz < 0V > Performance Total Capacity Sensible Capacity Latent Capacity Air Circulation (High) BTU/h kw BTU/h BTU/h ft /min (m /h), Cooling ( 9,800 to,00 ) (.90 to 7.0 ),00,000,707 (,900) Electrical Rating Available Voltage Range V 87 to Running Amperes Power Input A W.,60 Power Factor % 98 SEER BTU/W Compressor Locked Rotor Amperes A.0 Fuse or Circuit Breaker Capacity A 0 Features (Outdoor Unit) Control Microprocessor Fan Speeds Auto (Hi, Me, Lo) Compressor Refrigerant / Amount charged at shipment Ib. (g) DC Twin Rotary (Inverter) R0A / 6.7 (,800) Refrigerant Control Electric Expansion Valve Operation Sound (High) Cool db-a 0 Refrigerant Tubing Connections Flare Type Max. allowable tubing length per unit ft. (m) 8 () Refrigerant Narrow tube inch (mm) Tube Diameter Wide tube inch (mm) Dimensions & Weight (Outdoor Unit) Unit Dimensions Package Dimensions Weight Height Width Depth Height Width Depth Shipping Volume Net Shipping inch (mm) inch (mm) Ib. (kg) Ib. (kg) cu.ft (m ) Cooling / (6.) /8 (9.) + / (.7) 9-/8-7/6-9/ ( ) -7/ 0-/8 6-/ (860,0 ) (6.0) (67.0) (0.6) DATA SUBJECT TO CHANGE WITHOUT NOTICE. Remarks:. The Values shown in performance section and electrical rating section above are based on the following unit combination. For other combination unit, please refer to the "Unit Combination Tables" in this manual. Indoor Unit : KMS097 units Outdoor Unit : CM7 unit. Rating conditions are: Cooling : Indoor air temp. 80 F D.B./ 67 F W.B. Outdoor air temp. 9 F D.B./ 7 F W.B. 8

9 Outdoor Unit CM7 Indoor Unit KMS097 Type Number of Connectable Indoor Units Number of Operatable Indoor Units Voltage Rating -Room Multi Outdoor Unit 08V Single-Phase 60Hz < 08V > Performance Total Capacity Sensible Capacity Latent Capacity Air Circulation (High) BTU/h kw BTU/h BTU/h ft /min (m /h), Cooling ( 9,800 to,00 ) (.90 to 7.0 ) 0,600,800,707 (,900) Electrical Rating Available Voltage Range V 87 to Running Amperes Power Input A W.,60 Power Factor % 98 SEER BTU/W Compressor Locked Rotor Amperes A.0 Fuse or Circuit Breaker Capacity A 0 Features (Outdoor Unit) Control Microprocessor Fan Speeds Auto (Hi, Me, Lo) Compressor Refrigerant / Amount charged at shipment Ib. (g) DC Twin Rotary (Inverter) R0A / 6.7 (,800) Refrigerant Control Electric Expansion Valve Operation Sound (High) Cool db-a 0 Refrigerant Tubing Connections Flare Type Max. allowable tubing length per unit ft. (m) 8 () Refrigerant Narrow tube inch (mm) Tube Diameter Wide tube inch (mm) Dimensions & Weight (Outdoor Unit) Unit Dimensions Package Dimensions Weight Height Width Depth Height Width Depth Shipping Volume Net Shipping inch (mm) inch (mm) Ib. (kg) Ib. (kg) cu.ft (m ) Cooling / (6.) /8 (9.) + / (.7) 9-/8-7/6-9/ ( ) -7/ 0-/8 6-/ (860,0 ) (6.0) (67.0) (0.6) DATA SUBJECT TO CHANGE WITHOUT NOTICE. Remarks:. The Values shown in performance section and electrical rating section above are based on the following unit combination. For other combination unit, please refer to the "Unit Combination Tables" in this manual. Indoor Unit : KMS097 units Outdoor Unit : CM7 unit. Rating conditions are: Cooling : Indoor air temp. 80 F D.B./ 67 F W.B. Outdoor air temp. 9 F D.B./ 7 F W.B. 9

10 Outdoor Unit CM7 Indoor Unit KMS097 Type Number of Connectable Indoor Units Number of Operatable Indoor Units Voltage Rating -Room Multi Outdoor Unit 0V Single-Phase 60Hz < 0V > Performance Total Capacity Sensible Capacity Latent Capacity Air Circulation (High) BTU/h kw BTU/h BTU/h ft /min (m /h) 0, Cooling ( 9,800 to 0,600 ) (.90 to 9.00 ),800,800,9 (,00) Electrical Rating Available Voltage Range V 87 to Running Amperes Power Input A W.,800 Power Factor % 99 SEER BTU/W 6 Compressor Locked Rotor Amperes A 7.0 Fuse or Circuit Breaker Capacity A 0 Features (Outdoor Unit) Control Microprocessor Fan Speeds Auto (Hi, Me, Lo) Compressor Refrigerant / Amount charged at shipment Ib. (g) DC Twin Rotary (Inverter) R0A / 8.8 (,800) Refrigerant Control Electric Expansion Valve Operation Sound (High) Cool db-a Refrigerant Tubing Connections Flare Type Max. allowable tubing length per unit ft. (m) 00 (0.) Refrigerant Narrow tube inch (mm) Tube Diameter Wide tube inch (mm) Dimensions & Weight (Outdoor Unit) Unit Dimensions Package Dimensions Weight Height Width Depth Height Width Depth Shipping Volume Net Shipping inch (mm) inch (mm) Ib. (kg) Ib. (kg) cu.ft (m ) Cooling / (6.) /8 (9.) + / (.7) -/ -7/6-9/ ( ) 9-/ 0-/8 6-/ (,00,0 ) (79.0) (8.0) (0.) DATA SUBJECT TO CHANGE WITHOUT NOTICE. Remarks:. The Values shown in performance section and electrical rating section above are based on the following unit combination. For other combination unit, please refer to the "Unit Combination Tables" in this manual. Indoor Unit : KMS097 units Outdoor Unit : CM7 unit. Rating conditions are: Cooling : Indoor air temp. 80 F D.B./ 67 F W.B. Outdoor air temp. 9 F D.B./ 7 F W.B. 0

11 Outdoor Unit CM7 Indoor Unit KMS097 Type Number of Connectable Indoor Units Number of Operatable Indoor Units Voltage Rating -Room Multi Outdoor Unit 08V Single-Phase 60Hz < 08V > Performance Total Capacity Sensible Capacity Latent Capacity Air Circulation (High) BTU/h kw BTU/h BTU/h ft /min (m /h) 8, Cooling ( 9,800 to 8,600 ) (.90 to 8.0 ),00,00,9 (,00) Electrical Rating Available Voltage Range V 87 to Running Amperes Power Input A W.6,800 Power Factor % 99 SEER BTU/W 6 Compressor Locked Rotor Amperes A 7.0 Fuse or Circuit Breaker Capacity A 0 Features (Outdoor Unit) Control Microprocessor Fan Speeds Auto (Hi, Me, Lo) Compressor Refrigerant / Amount charged at shipment Ib. (g) DC Twin Rotary (Inverter) R0A / 8.8 (,800) Refrigerant Control Electric Expansion Valve Operation Sound (High) Cool db-a Refrigerant Tubing Connections Flare Type Max. allowable tubing length per unit ft. (m) 00 (0.) Refrigerant Narrow tube inch (mm) Tube Diameter Wide tube inch (mm) Dimensions & Weight (Outdoor Unit) Unit Dimensions Package Dimensions Weight Height Width Depth Height Width Depth Shipping Volume Net Shipping inch (mm) inch (mm) Ib. (kg) Ib. (kg) cu.ft (m ) Cooling / (6.) /8 (9.) + / (.7) -/ -7/6-9/ ( ) 9-/ 0-/8 6-/ (,00,0 ) (79.0) (8.0) (0.) DATA SUBJECT TO CHANGE WITHOUT NOTICE. Remarks:. The Values shown in performance section and electrical rating section above are based on the following unit combination. For other combination unit, please refer to the "Unit Combination Tables" in this manual. Indoor Unit : KMS097 units Outdoor Unit : CM7 unit. Rating conditions are: Cooling : Indoor air temp. 80 F D.B./ 67 F W.B. Outdoor air temp. 9 F D.B./ 7 F W.B.

12 -. Major Component Specifications --. Outdoor Unit Outdoor Unit CM97 Control PCB Part No. Controls Control Circuit Fuse Compressor Type Compressor Model / Nominal Output Compressor Oil... Amount Pints (cc) Coil Resistance (Ambient Temp. 68 F (0 C)) Ohm Safety Device CT (Peak current cut-off control) Compressor Discharge Temp. Control Operation cut-off control in abnormal ambient Temp. Overload Relay Model Operation Temp. Run Capacitor Crankcase Heater Micro F VAC CB-CM97 Microprocessor 0V A DC Twin Rotary (Hermetic) KD0XAB /,700W FV0S....9 (900) U - V : 0.70 V - W : W - U : 0.76 Yes Yes Yes CS-7LN Open : 9 F ( C), Close : F (00 C) Fan Type Q'ty... Dia. inch (mm) Propeller... D8-/8 (D60) Fan Motor Type Model... Q'ty No. of Poles Rough Measure RPM (Cool) Nominal Output Coil Resistance (Ambient Temp. 68 F (0 C)) Safety Device Type Over-Current Protection Over-Heat Protection Run Capacitor W Ohm Micro F VAC DC Motor SIC-7FW-D Internal Controller Yes Yes - - Heat Exchanger Coil Coil Rows Fins per inch Aluminum Plate Fin / Copper Tube 8. Face Area ft (m ) 6.0 (0.9) External Finish Acrylic baked-on enamel finish DATA SUBJECT TO CHANGE WITHOUT NOTICE.

13 Outdoor Unit CM7 Control PCB Part No. Controls Control Circuit Fuse Compressor Type Compressor Model / Nominal Output Compressor Oil... Amount Pints (cc) Coil Resistance (Ambient Temp. 68 F (0 C)) Ohm Safety Device CT (Peak current cut-off control) Compressor Discharge Temp. Control Operation cut-off control in abnormal ambient Temp. Overload Relay Model Operation Temp. Run Capacitor Crankcase Heater Micro F VAC CB-CM7 Microprocessor 0V A DC Twin Rotary (Hermetic) KD0XAB /,700W FV0S....9 (900) U - V : 0.70 V - W : W - U : 0.76 Yes Yes Yes CS-7LN Open : 9 F ( C), Close : F (00 C) Fan Type Q'ty... Dia. inch (mm) Propeller... D8-/8 (D60) Fan Motor Type Model... Q'ty No. of Poles Rough Measure RPM (Cool) Nominal Output Coil Resistance (Ambient Temp. 68 F (0 C)) Safety Device Type Over-Current Protection Over-Heat Protection Run Capacitor W Ohm Micro F VAC DC Motor SIC-7FW-D Internal Controller Yes Yes - - Heat Exchanger Coil Coil Rows Fins per inch Aluminum Plate Fin / Copper Tube 8. Face Area ft (m ) 6.0 (0.9) External Finish Acrylic baked-on enamel finish DATA SUBJECT TO CHANGE WITHOUT NOTICE.

14 Outdoor Unit CM7 Control PCB Part No. Controls Control Circuit Fuse Compressor Type Compressor Model / Nominal Output Compressor Oil... Amount Pints (cc) Coil Resistance (Ambient Temp. 68 F (0 C)) Ohm Safety Device CT (Peak current cut-off control) Compressor Discharge Temp. Control Operation cut-off control in abnormal ambient Temp. Overload Relay Model Operation Temp. Run Capacitor Crankcase Heater Micro F VAC CB-CM7 Microprocessor 0V A DC Twin Rotary (Hermetic) JD0XAB /,000W FV0S.... (,00) U - V : 0. V - W : 0. W - U : 0. Yes Yes Yes CS-7LN Open : 9 F ( C), Close : F (00 C) Fan Type Q'ty... Dia. inch (mm) Propeller... D8-/8 (D60) Fan Motor Type Model... Q'ty No. of Poles Rough Measure RPM (Cool) Nominal Output Coil Resistance (Ambient Temp. 68 F (0 C)) Safety Device Type Over-Current Protection Over-Heat Protection Run Capacitor W Ohm Micro F VAC DC Motor SIC-7FW-D Internal Controller Yes Yes - - Heat Exchanger Coil Coil Rows Fins per inch Aluminum Plate Fin / Copper Tube 8. Face Area ft (m ) 7.7 (0.7) External Finish Acrylic baked-on enamel finish DATA SUBJECT TO CHANGE WITHOUT NOTICE.

15 -. Other Component Specifications Sensor Name Model No. of sensor Quantity of Sensor CM97 CM7 CM7 Outdoor air temp sensor TKS9B Outdoor heat exchanger sensor TKS9B AW / AN sensor TKS9B / / / BW / BN sensor TKS9B / / / CW / CN sensor TKS9B / / / DW / DN sensor TKS9B 0 / / 0 Resistance (k ohm) (-0)(-)(-0) (-) (0) () (0) () (0) Temperature F ( C) Sensor Name Model No. of sensor Quantity of Sensor CM97 CM7 CM7 Compressor temp sensor TKS9B Resistance (k ohm) (0) (0) (0) (0) (0) (0) (60) (70) (80) (90) Temperature F ( C)

16 . DIMENSIONAL DATA Outdoor Unit CM97 -/6 -/ -/8-7/ ID:/ -ID:/6 / -7/6(900) Wide tube service valve dia./8" (9.) Narrow tube service valve dia./" (6.) / -9/ -7/ -/ -7/6 -/6 -/ 9-/8(70) -9/(0) -9/ -7/ -/6 -/6 -/ -/ -/6 Unit: inch(mm) 6

17 Outdoor Unit CM7 -/6 -/ -/8-7/ ID:/ -ID:/6 / -9/(0) -9/ -7/ -7/6(900) -/6 Wide tube service valve dia./8" (9.) Narrow tube service valve dia./" (6.) / 9-/8(70) -9/ -7/ -/ -/ Wide tube service valve dia./" (.70) -/6 -/ -/ -7/6 -/6 -/ -/ -/6 -/ Unit: inch(mm) 7

18 Outdoor Unit CM7 -/6 -/ -/8-7/ ID:/ -ID:/6 / -7/6(900) Wide tube service valve dia./8" (9.) Narrow tube service valve dia./" (6.) Wide tube service valve dia./" (.70) / -9/ -7/8 -/ -/ -7/6 -/6 -/ -/ -9/(0) -9/ -7/ -/(890) -/6 -/6 -/ -/ -/6 -/ Unit: inch(mm) 8

19 . REFRIGERANT FLOW DIAGRAM -. Refrigerant Flow Diagram Outdoor Unit CM97 Indoor unit Outdoor unit Wide tube O.D./8" O.D./8" O.D./8" Service valve on wide tube CW BW AW Header Sub accumulator Main accumulator High pressure switch H.P. Compressor Narrow tube O.D./" O.D./" O.D./" Service valve on narrow tube CN BN AN Strainer Electric expansion valve M M M Header Heat exchanger Cooling cycle Insulation of Refrigerant Tubing IMPORTANT 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./6"(8 mm). Thickness: Min./6"(8 mm) Insulation Thickness: Min./6"(8 mm) CAUTION 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 Narrow tube 9

20 Outdoor Unit CM7 Indoor unit Outdoor unit Wide tube O.D./8" O.D./8" O.D./8" O.D./" Service valve on wide tube DW CW BW AW Header Sub accumulator Main accumulator High pressure switch H.P. Compressor Narrow tube O.D./" O.D./" O.D./" O.D./" Service valve on narrow tube DN CN BN AN Strainer Electric expansion valve M M M M Header Heat exchanger Cooling cycle Insulation of Refrigerant Tubing IMPORTANT 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./6"(8 mm). Thickness: Min./6"(8 mm) Insulation Thickness: Min./6"(8 mm) CAUTION 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 Narrow tube 0

21 Outdoor Unit CM7 Indoor unit Outdoor unit Wide tube O.D./8" O.D./8" O.D./" O.D./" Service valve on wide tube DW CW BW AW Header Sub accumulator Main accumulator High pressure switch H.P. Compressor Narrow tube O.D./" O.D./" O.D./" O.D./" Service valve on narrow tube DN CN BN AN Strainer Electric expansion valve M M M M Header Heat exchanger Cooling cycle Insulation of Refrigerant Tubing IMPORTANT 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./6"(8 mm). Thickness: Min./6"(8 mm) Insulation Thickness: Min./6"(8 mm) CAUTION 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 Narrow tube

22 . PERFORMANCE DATA -. Temperature Charts --. Temperature Charts (CM97) Outdoor Unit CM97 Indoor Unit KMS077 Cooling Characteristics (RH : 6%, Indoor fan speed : High fan) (0V, 60Hz) () Low pressure performance chart Low pressure at wide tube service valve psig (MPaG) 88 (.) 7 (.) 60 (.) 6 (.0) 77 () Lo fan Hi fan HH fan 86 (0) Indoor air temp. 86 F (0 C) 80 F (7 C) 7 F ( C) 9 () Outdoor air temperature F ( C) () Operating current performance chart 0 (0) Lo fan Hi fan HH fan Operating current (A) Indoor air temp. 86 F (0 C) 80 F (7 C) 7 F ( C) 77 () 86 (0) 9 () Outdoor air temperature F ( C) () Indoor discharge air performance chart 0 (0) Indoor discharge air temperature F ( C) 68.0(0) 6.(8) 60.8(6) 7.().6() 0.0(0) 6.( 8) 77 () Lo fan Hi fan HH fan 86 (0) Indoor air temp. 86 F (0 C) 9 () Outdoor air temperature F ( C) 80 F (7 C) 7 F ( C) 0 (0) NOTE This performance chart shows operation of a single wall-mounted indoor unit. The performance chart will vary depending on the indoor unit type. Check each performance value in test-run mode. Electrical performance values represent a combined indoor/outdoor value. (In this case, be sure to stop all the indoor units where performance is not being checked.) The performance is for a tubing length of.6t (7.m). If the tubing length is different, the performance chart will vary.

23 Outdoor Unit CM97 Indoor Unit KMS097 Cooling Characteristics (RH : 6%, Indoor fan speed : High fan) (0V, 60Hz) () Low pressure performance chart Low pressure at wide tube service valve psig (MPaG) 88 (.) 7 (.) 60 (.) Lo fan Hi fan Indoor air temp. 86 F (0 C) 80 F (7 C) 7 F ( C) HH fan 6 (.0) 77 () 86 (0) 9 () Outdoor air temperature F ( C) 0 (0) () Operating current performance chart 6 Lo fan Hi fan HH fan Operating current (A) Indoor air temp. 86 F (0 C) 80 F (7 C) 7 F ( C) 77 () 86 (0) 9 () Outdoor air temperature F ( C) 0 (0) () Indoor discharge air performance chart Indoor discharge air temperature F ( C) 68.0(0) 6.(8) 60.8(6) 7.().6() 0.0(0) 6.( 8) 77 () Lo fan 86 (0) Outdoor air temperature F ( C) NOTE This performance chart shows operation of a single wall-mounted indoor unit. The performance chart will vary depending on the indoor unit type. Check each performance value in test-run mode. Electrical performance values represent a combined indoor/outdoor value. (In this case, be sure to stop all the indoor units where performance is not being checked.) The performance is for a tubing length of.6ft (7.m). If the tubing length is different, the performance chart will vary. Hi fan Indoor air temp. 86 F (0 C) 9 () 80 F (7 C) 7 F ( C) HH fan 0 (0)

24 Outdoor Unit CM97 Indoor Unit KMS7 Cooling Characteristics (RH : 6%, Indoor fan speed : High fan) (0V, 60Hz) () Low pressure performance chart Low pressure at wide tube service valve psig (MPaG) 7 (.) 60 (.) 6 (.0) (0.9) 77 () Lo fan 86 (0) Hi fan Indoor air temp. 86 F (0 C) 80 F (7 C) 7 F ( C) 9 () Outdoor air temperature F ( C) HH fan 0 (0) () Operating current performance chart 6 Lo fan Hi fan HH fan Operating current (A) Indoor air temp. 86 F (0 C) 80 F (7 C) 7 F ( C) 77 () 86 (0) 9 () Outdoor air temperature F ( C) 0 (0) () Indoor discharge air performance chart Indoor discharge air temperature F ( C) 68.0(0) 6.(8) 60.8(6) 7.().6() 0.0(0) 6.( 8) 77 () Lo fan 86 (0) Outdoor air temperature F ( C) NOTE This performance chart shows operation of a single wall-mounted indoor unit. The performance chart will vary depending on the indoor unit type. Check each performance value in test-run mode. Electrical performance values represent a combined indoor/outdoor value. (In this case, be sure to stop all the indoor units where performance is not being checked.) The performance is for a tubing length of.6ft (7.m). If the tubing length is different, the performance chart will vary. Hi fan Indoor air temp. 86 F (0 C) 80 F (7 C) 7 F ( C) 9 () HH fan 0 (0)

25 Outdoor Unit CM97 Indoor Unit KMS87 Cooling Characteristics (RH : 6%, Indoor fan speed : High fan) (0V, 60Hz) () Low pressure performance chart Low pressure at wide tube service valve psig (MPaG) 7 (.) 60 (.) 6 (.0) Lo fan Hi fan Indoor air temp. 86 F (0 C) 80 F (7 C) 7 F ( C) HH fan (0.9) 77 () 86 (0) 9 () Outdoor air temperature F ( C) 0 (0) () Operating current performance chart 8 Lo fan Hi fan HH fan Operating current (A) 7 6 Indoor air temp. 86 F (0 C) 80 F (7 C) 7 F ( C) 77 () 86 (0) 9 () Outdoor air temperature F ( C) 0 (0) () Indoor discharge air performance chart Indoor discharge air temperature F ( C) 68.0(0) 6.(8) 60.8(6) 7.().6() 0.0(0) 6.( 8) 77 () Lo fan 86 (0) Hi fan Indoor air temp. 86 F (0 C) 80 F (7 C) 7 F ( C) 9 () Outdoor air temperature F ( C) HH fan 0 (0) NOTE This performance chart shows operation of a single wall-mounted indoor unit. The performance chart will vary depending on the indoor unit type. Check each performance value in test-run mode. Electrical performance values represent a combined indoor/outdoor value. (In this case, be sure to stop all the indoor units where performance is not being checked.) The performance is for a tubing length of.6ft (7.m). If the tubing length is different, the performance chart will vary.

26 --. Temperature Charts (CM7) Outdoor Unit CM7 Indoor Unit KMS077 Cooling Characteristics (RH : 6%, Indoor fan speed : High fan) (0V, 60Hz) () Low pressure performance chart Low pressure at wide tube service valve psig (MPaG) 88 (.) 7 (.) 60 (.) 6 (.0) 77 () Lo fan Hi fan HH fan 86 (0) Indoor air temp. 86 F (0 C) 9 () Outdoor air temperature F ( C) 80 F (7 C) 7 F ( C) () Operating current performance chart 0 (0) Lo fan Hi fan HH fan Operating current (A) Indoor air temp. 86 F (0 C) 80 F (7 C) 7 F ( C) 77 () 86 (0) 9 () Outdoor air temperature F ( C) () Indoor discharge air performance chart 0 (0) Indoor discharge air temperature F ( C) 68.0(0) 6.(8) 60.8(6) 7.().6() 0.0(0) 6.( 8) 77 () Lo fan Hi fan HH fan 86 (0) Indoor air temp. 86 F (0 C) 9 () Outdoor air temperature F ( C) 80 F (7 C) 7 F ( C) 0 (0) NOTE This performance chart shows operation of a single wall-mounted indoor unit. The performance chart will vary depending on the indoor unit type. Check each performance value in test-run mode. Electrical performance values represent a combined indoor/outdoor value. (In this case, be sure to stop all the indoor units where performance is not being checked.) The performance is for a tubing length of.6t (7.m). If the tubing length is different, the performance chart will vary. 6

27 Outdoor Unit CM7 Indoor Unit KMS097 Cooling Characteristics (RH : 6%, Indoor fan speed : High fan) (0V, 60Hz) () Low pressure performance chart Low pressure at wide tube service valve psig (MPaG) 88 (.) 7 (.) 60 (.) 6 (.0) 77 () Lo fan 86 (0) Hi fan Indoor air temp. 86 F (0 C) 80 F (7 C) 7 F ( C) 9 () Outdoor air temperature F ( C) HH fan 0 (0) () Operating current performance chart 6 Lo fan Hi fan HH fan Operating current (A) Indoor air temp. 86 F (0 C) 80 F (7 C) 7 F ( C) 77 () 86 (0) 9 () Outdoor air temperature F ( C) 0 (0) () Indoor discharge air performance chart Indoor discharge air temperature F ( C) 68.0(0) 6.(8) 60.8(6) 7.().6() 0.0(0) 6.( 8) 77 () Lo fan 86 (0) Outdoor air temperature F ( C) NOTE This performance chart shows operation of a single wall-mounted indoor unit. The performance chart will vary depending on the indoor unit type. Check each performance value in test-run mode. Electrical performance values represent a combined indoor/outdoor value. (In this case, be sure to stop all the indoor units where performance is not being checked.) The performance is for a tubing length of.6ft (7.m). If the tubing length is different, the performance chart will vary. 7 Hi fan Indoor air temp. 86 F (0 C) 9 () 80 F (7 C) 7 F ( C) HH fan 0 (0)

28 Outdoor Unit CM7 Indoor Unit KMS7 Cooling Characteristics (RH : 6%, Indoor fan speed : High fan) (0V, 60Hz) () Low pressure performance chart Low pressure at wide tube service valve psig (MPaG) 7 (.) 60 (.) 6 (.0) (0.9) 77 () Lo fan 86 (0) Hi fan Indoor air temp. 86 F (0 C) 80 F (7 C) 7 F ( C) 9 () Outdoor air temperature F ( C) HH fan 0 (0) () Operating current performance chart 6 Lo fan Hi fan HH fan Operating current (A) Indoor air temp. 86 F (0 C) 80 F (7 C) 7 F ( C) 77 () 86 (0) 9 () Outdoor air temperature F ( C) 0 (0) () Indoor discharge air performance chart Indoor discharge air temperature F ( C) 68.0(0) 6.(8) 60.8(6) 7.().6() 0.0(0) 6.( 8) 77 () Lo fan 86 (0) Outdoor air temperature F ( C) NOTE This performance chart shows operation of a single wall-mounted indoor unit. The performance chart will vary depending on the indoor unit type. Check each performance value in test-run mode. Electrical performance values represent a combined indoor/outdoor value. (In this case, be sure to stop all the indoor units where performance is not being checked.) The performance is for a tubing length of.6ft (7.m). If the tubing length is different, the performance chart will vary. Hi fan Indoor air temp. 86 F (0 C) 8 80 F (7 C) 7 F ( C) 9 () HH fan 0 (0)

29 Outdoor Unit CM7 Indoor Unit KMS87 Cooling Characteristics (RH : 6%, Indoor fan speed : High fan) (0V, 60Hz) () Low pressure performance chart Low pressure at wide tube service valve psig (MPaG) 7 (.) 60 (.) 6 (.0) Lo fan Hi fan Indoor air temp. 86 F (0 C) 80 F (7 C) 7 F ( C) HH fan (0.9) 77 () 86 (0) 9 () Outdoor air temperature F ( C) 0 (0) () Operating current performance chart 8 Lo fan Hi fan HH fan Operating current (A) 7 6 Indoor air temp. 86 F (0 C) 80 F (7 C) 7 F ( C) 77 () 86 (0) 9 () Outdoor air temperature F ( C) 0 (0) () Indoor discharge air performance chart Indoor discharge air temperature F ( C) 68.0(0) 6.(8) 60.8(6) 7.().6() 0.0(0) 6.( 8) 77 () Lo fan 86 (0) Hi fan Indoor air temp. 86 F (0 C) 80 F (7 C) 7 F ( C) 9 () Outdoor air temperature F ( C) HH fan 0 (0) NOTE This performance chart shows operation of a single wall-mounted indoor unit. The performance chart will vary depending on the indoor unit type. Check each performance value in test-run mode. Electrical performance values represent a combined indoor/outdoor value. (In this case, be sure to stop all the indoor units where performance is not being checked.) The performance is for a tubing length of.6ft (7.m). If the tubing length is different, the performance chart will vary. 9

30 Outdoor Unit CM7 Indoor Unit KMS7 Cooling Characteristics (RH : 6%, Indoor fan speed : High fan) (0V, 60Hz) () Low pressure performance chart Low pressure at wide tube service valve psig (MPaG) 7 (.) 60 (.) 6 (.0) Lo fan Hi fan HH fan Indoor air temp. 86 F (0 C) 80 F (7 C) 7 F ( C) (0.9) 77 () 86 (0) 9 () Outdoor air temperature F ( C) 0 (0) () Operating current performance chart Operating current (A) 9 Lo fan 8 7 HH fan Hi fan Indoor air temp. 86 F (0 C) 80 F (7 C) 7 F ( C) 6 77 () 86 (0) 9 () Outdoor air temperature F ( C) 0 (0) () Indoor discharge air performance chart Indoor discharge air temperature F ( C) 68.0(0) 6.(8) 60.8(6) 7.().6() 0.0(0) 6.( 8) 77 () Lo fan 86 (0) Outdoor air temperature F ( C) NOTE This performance chart shows operation of a single wall-mounted indoor unit. The performance chart will vary depending on the indoor unit type. Check each performance value in test-run mode. Electrical performance values represent a combined indoor/outdoor value. (In this case, be sure to stop all the indoor units where performance is not being checked.) The performance is for a tubing length of.6ft (7.m). If the tubing length is different, the performance chart will vary. 0 Hi fan Indoor air temp. 86 F (0 C) 80 F (7 C) 7 F ( C) 9 () HH fan 0 (0)

31 --. Temperature Charts (CM7) Outdoor Unit CM7 Indoor Unit KMS077 Cooling Characteristics (RH : 6%, Indoor fan speed : High fan) (0V, 60Hz) () Low pressure performance chart Low pressure at wide tube service valve psig (MPaG) 7 (.) 6 (.0) 8 (0.8) 90 (0.6) 77 () Lo fan Hi fan Hi fan HH fan 86 (0) Indoor air temp. 86 F (0 C) 9 () Outdoor air temperature F ( C) 80 F (7 C) 7 F ( C) 0 (0) () Operating current performance chart Lo fan Hi fan Hi fan HH fan Operating current (A) Indoor air temp. 86 F (0 C) 80 F (7 C) 7 F ( C) 77 () 86 (0) 9 () Outdoor air temperature F ( C) 0 (0) () Indoor discharge air performance chart Indoor discharge air temperature F ( C) 68.0(0) 6.(8) 60.8(6) 7.().6() 0.0(0) 6.( 8) 77 () Lo fan Hi fan Hi fan HH fan 86 (0) Outdoor air temperature F ( C) NOTE This performance chart shows operation of a single wall-mounted indoor unit. The performance chart will vary depending on the indoor unit type. Check each performance value in test-run mode. Electrical performance values represent a combined indoor/outdoor value. (In this case, be sure to stop all the indoor units where performance is not being checked.) The performance is for a tubing length of.6ft (7.m). If the tubing length is different, the performance chart will vary. Indoor air temp. 86 F (0 C) 9 () 80 F (7 C) 7 F ( C) 0 (0)

32 Outdoor Unit CM7 Indoor Unit KMS097 Cooling Characteristics (RH : 6%, Indoor fan speed : High fan) (0V, 60Hz) () Low pressure performance chart Low pressure at wide tube service valve psig (MPaG) 7 (.) 6 (.0) 8 (0.8) 90 (0.6) 77 () Lo fan Hi fan Hi fan HH fan 86 (0) Indoor air temp. 86 F (0 C) 80 F (7 C) 7 F ( C) 9 () Outdoor air temperature F ( C) 0 (0) () Operating current performance chart Lo fan Hi fan Hi fan HH fan Operating current (A) Indoor air temp. 86 F (0 C) 80 F (7 C) 7 F ( C) 77 () 86 (0) 9 () Outdoor air temperature F ( C) 0 (0) () Indoor discharge air performance chart Indoor discharge air temperature F ( C) 68.0(0) 6.(8) 60.8(6) 7.().6() 0.0(0) 6.( 8) 77 () Lo fan Hi fan Hi fan HH fan 86 (0) Indoor air temp. 86 F (0 C) 80 F (7 C) 7 F ( C) 9 () Outdoor air temperature F ( C) 0 (0) NOTE This performance chart shows operation of a single wall-mounted indoor unit. The performance chart will vary depending on the indoor unit type. Check each performance value in test-run mode. Electrical performance values represent a combined indoor/outdoor value. (In this case, be sure to stop all the indoor units where performance is not being checked.) The performance is for a tubing length of.6ft (7.m). If the tubing length is different, the performance chart will vary.

33 Outdoor Unit CM7 Indoor Unit KMS7 Cooling Characteristics (RH : 6%, Indoor fan speed : High fan) (0V, 60Hz) () Low pressure performance chart Low pressure at wide tube service valve psig (MPaG) 7 (.) 6 (.0) 8 (0.8) Lo fan Hi fan Hi fan HH fan Indoor air temp. 86 F (0 C) 80 F (7 C) 7 F ( C) 90 (0.6) 77 () 86 (0) 9 () Outdoor air temperature F ( C) 0 (0) () Operating current performance chart 6 Lo fan Hi fan Hi fan HH fan Operating current (A) Indoor air temp. 86 F (0 C) 80 F (7 C) 7 F ( C) 77 () 86 (0) 9 () Outdoor air temperature F ( C) () Indoor discharge air performance chart 0 (0) Indoor discharge air temperature F ( C) 68.0(0) 6.(8) 60.8(6) 7.().6() 0.0(0) 6.( 8) 77 () Lo fan Hi fan Hi fan HH fan 86 (0) Outdoor air temperature F ( C) NOTE This performance chart shows operation of a single wall-mounted indoor unit. The performance chart will vary depending on the indoor unit type. Check each performance value in test-run mode. Electrical performance values represent a combined indoor/outdoor value. (In this case, be sure to stop all the indoor units where performance is not being checked.) The performance is for a tubing length of.6ft (7.m). If the tubing length is different, the performance chart will vary. Indoor air temp. 86 F (0 C) 9 () 80 F (7 C) 7 F ( C) 0 (0)

34 Outdoor Unit CM7 Indoor Unit KMS87 Cooling Characteristics (RH : 6%, Indoor fan speed : High fan) (0V, 60Hz) () Low pressure performance chart Low pressure at wide tube service valve psig (MPaG) 7 (.) 6 (.0) 8 (0.8) Indoor air temp. 86 F (0 C) 80 F (7 C) 7 F ( C) Lo fan Hi fan 90 (0.6) 77 () 86 (0) 9 () Outdoor air temperature F ( C) 0 (0) () Operating current performance chart 9 Lo fan Hi fan Operating current (A) F (7 C) Indoor air temp. 86 F (0 C) 7 F ( C) 77 () 86 (0) 9 () Outdoor air temperature F ( C) 0 (0) () Indoor discharge air performance chart Indoor discharge air temperature F ( C) 68.0(0) 6.(8) 60.8(6) 7.().6() 0.0(0) 6.( 8) 77 () 86 (0) Lo fan Indoor air temp. 86 F (0 C) 9 () Outdoor air temperature F ( C) 80 F (7 C) 7 F ( C) Hi fan 0 (0) NOTE This performance chart shows operation of a single wall-mounted indoor unit. The performance chart will vary depending on the indoor unit type. Check each performance value in test-run mode. Electrical performance values represent a combined indoor/outdoor value. (In this case, be sure to stop all the indoor units where performance is not being checked.) The performance is for a tubing length of.6ft (7.m). If the tubing length is different, the performance chart will vary.

35 Outdoor Unit CM7 Indoor Unit KMS7 Cooling Characteristics (RH : 6%, Indoor fan speed : High fan) (0V, 60Hz) () Low pressure performance chart Low pressure at wide tube service valve psig (MPaG) 7 (.) 6 (.0) 8 (0.8) 90 (0.6) 77 () 86 (0) Lo fan Indoor air temp. 86 F (0 C) 80 F (7 C) 7 F ( C) 9 () Outdoor air temperature F ( C) Hi fan 0 (0) () Operating current performance chart Operating current (A) 0 9 Lo fan Indoor air temp. 86 F (0 C) 80 F (7 C) 7 F ( C) Hi fan 8 77 () 86 (0) 9 () Outdoor air temperature F ( C) 0 (0) () Indoor discharge air performance chart Indoor discharge air temperature F ( C) 68.0(0) 6.(8) 60.8(6) 7.().6() 0.0(0) 6.( 8) 77 () 86 (0) Outdoor air temperature F ( C) NOTE This performance chart shows operation of a single wall-mounted indoor unit. The performance chart will vary depending on the indoor unit type. Check each performance value in test-run mode. Electrical performance values represent a combined indoor/outdoor value. (In this case, be sure to stop all the indoor units where performance is not being checked.) The performance is for a tubing length of.6ft (7.m). If the tubing length is different, the performance chart will vary. Lo fan Indoor air temp. 86 F (0 C) 9 () 80 F (7 C) 7 F ( C) Hi fan 0 (0)

36 -. Cooling Capacity Outdoor Unit CM97 Indoor Unit KMS097 Outdoor Unit CM7 Indoor Unit KMS097 Outdoor Unit CM7 Indoor Unit KMS Cooling capacity ratio (%) () 68 (0) 77 () 86 (0) 9 () 0 (0) () (0) Outdoor temperature F D.B. ( C D.B.) NOTE Rating conditions: Indoor air temperature Outdoor air temperature 80 F (6.7 C) D.B. / 67 F (9. C)W.B. 9 F ( C) D.B. 6

37 6. ELECTRICAL DATA 6-. Electric Wiring Diagrams Outdoor Unit CM97 WARNING To avoid electrical shock hazard, be sure to disconnect power before checking, servicing and/or cleaning any electrical parts. REACTANCE COMPRESSOR THERMISTOR COIL/OUTDOOR AW THERMISTOR AN THERMISTOR A-TH (P)CONNECTOR FERRITE CORE (7P)CONNECTOR BW THERMISTOR BN THERMISTOR B-TH HIGH PRESSURE SWITCH CW THERMISTOR CN THERMISTOR (P)CONNECTOR (P)CONNECTOR RED COIL THERMISTOR OUTDOOR THERMISTOR (P)CONNECTOR COMPRESSOR MOTOR FAN MOTOR OVERLOAD RELAY(OLR) CONTROLLER SICOM KS KS KS0 W CN0 CN0 EXPANSION BOARD C-TH CN0 MV W SICOM SI-C W U W W W W L L E E A SI-A MV0 SI-B MV0 MAGNETIC COIL W ACIN W ACIN COMP GRN/ GRN/ W W W V W 6 RELAY TERMINAL PLATE GND TERMINAL PLATE W W L L POWER SUPPLY FERRITE CORE RED GND BLU C INDDOR UNIT B INDDOR UNIT TO INDDOR UNIT A INDDOR UNIT MV GRY RED ORG GRY RED ORG MV MAGNETIC COIL RED BLU RED BLU FM S/U C/W CM 6 6 R/V RED BLU RED BLU RED BLU BRN ORG MV MAGNETIC COIL RED BLU BRN ORG GRY RED ORG FM BRN BLU RED (PNK) BLU RED (PNK) 8FA

38 Outdoor Unit CM7 WARNING To avoid electrical shock hazard, be sure to disconnect power before checking, servicing and/or cleaning any electrical parts. REACTANCE COMPRESSOR THERMISTOR AW THERMISTOR AN THERMISTOR COIL/OUTDOOR A-TH (7P)CONNECTOR (P)CONNECTOR FERRITE CORE BW THERMISTOR BN THERMISTOR B-TH HIGH PRESSURE SWITCH CW THERMISTOR CN THERMISTOR MAGNETIC COIL (P)CONNECTOR (P)CONNECTOR RED COIL THERMISTOR OUTDOOR THERMISTOR (P)CONNECTOR COMPRESSOR MOTOR FAN MOTOR OVERLOAD RELAY(OLR) CONTROLLER SICOM KS KS KS0 W CN0 CN0 EXPANSION BOARD D-TH C-TH MV W CN0 SICOM MV SI-D SI-C W W U W W W W L L E E A SI-A MV0 SI-B MV0 MAGNETIC COIL W ACIN W ACIN COMP GRN/ W W W V W 6 RELAY TERMINAL PLATE GND TERMINAL PLATE W W L L POWER SUPPLY FERRITE CORE RED GND BLU D INDDOR UNIT C INDDOR B INDDOR UNIT UNIT TO INDDOR UNIT A INDDOR UNIT MV GRY RED ORG GRY RED ORG MV MAGNETIC COIL RED BLU RED BLU FM S/U C/W CM R/V RED BLU RED BLU RED BLU BRN ORG MV MAGNETIC COIL RED BLU BRN ORG DW THERMISTOR DN THERMISTOR GRY RED ORG FM 6 6 GRY RED ORG MV BRN GRY BLU RED (PNK) BLU RED (PNK) GRN/ 8FA

39 Outdoor Unit CM7 WARNING To avoid electrical shock hazard, be sure to disconnect power before checking, servicing and/or cleaning any electrical parts. REACTANCE COMPRESSOR THERMISTOR AW THERMISTOR AN THERMISTOR COIL/OUTDOOR A-TH (7P)CONNECTOR (P)CONNECTOR FERRITE CORE BW THERMISTOR BN THERMISTOR B-TH HIGH PRESSURE SWITCH CW THERMISTOR CN THERMISTOR MAGNETIC COIL (P)CONNECTOR (P)CONNECTOR RED COIL THERMISTOR OUTDOOR THERMISTOR (P)CONNECTOR COMPRESSOR MOTOR FAN MOTOR OVERLOAD RELAY(OLR) CONTROLLER SICOM KS KS KS0 W CN0 CN0 EXPANSION BOARD D-TH C-TH MV W CN0 SICOM MV SI-D SI-C W W U W W W W W L L E E ACIN A W ACIN SI-A MV0 SI-B MV0 MAGNETIC COIL COMP GRN/ FERRITE CORE W W W V W 6 RELAY TERMINAL PLATE GND TERMINAL PLATE W W L L POWER SUPPLY GND BLU RED D INDDOR UNIT C INDDOR B INDDOR UNIT UNIT TO INDDOR UNIT A INDDOR UNIT MV GRY RED ORG GRY RED ORG MV MAGNETIC COIL RED BLU RED BLU FM S/U C/W CM R/V RED BLU RED BLU RED BLU BRN ORG MV MAGNETIC COIL RED BLU BRN ORG DW THERMISTOR DN THERMISTOR GRY RED ORG FM 6 6 GRY RED ORG MV BRN GRY BLU RED (PNK) BLU RED (PNK) GRN/ 8FA

40 7. FUNCTIONS 7-. Explanation of Functions NOTE The numerical values such as temperature, frequency, time and current in parentheses are an example of CM7 and the values are different from the other models. Control/conditions Unit operation Explanation INITIAL Breaker is ON. Power is supplied to the indoor and outdoor unit control circuits, however the 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. This applies in the case of automatic COOL operation. Depending on the operational mode, refer to the SENSOR DRY, or COOL item. 0

41 Control/conditions Unit operation Explanation COOL The ON/OFF operation button on the remote controller is pressed. The operation lamp illuminates. The indoor fan operates at the set fan speed. The outdoor unit stops. The outdoor unit does not operate for minutes even after the breaker is turned ON. The outdoor unit starts. The frequency is increased at the rate of 0. Hz every seconds. (Compressor and the outdoor fan start.) When the frequency reaches Hz, frequency increases are stopped for a period of seconds. (Refer to Table.) This is in order to stabilize the return of oil to the compressor. The frequency then increases. If the indoor and outdoor temperatures are high, the current peak cut-off activates, stopping any increases in frequency. The room temperature has reached the desired temperature. The indoor temperature and the desired temperature are approximately equal. Operating frequency is stabilized in order to maintain a comfortable environment. The thermostat turns OFF. The outdoor unit stops. (It does not stop if the thermostart for another indoor unit is ON.) The thermostat turns ON again. After the thermostat turns ON again, the outdoor unit will not operate for minutes, even if the room temperature increases above the desired temperature. After minutes, the outdoor unit begins operating automatically. During these minutes, a pressure balance is achieved, allowing the compressor to start more easily. Freeze prevention When the temperature of the indoor heat exchanger drops to approximately.6 F or below, the compressor turns OFF, the outdoor fan turns OFF, and the indoor fan continues operating with no changes. In order to protect against freezing, the compressor stops temporarily, until the temperature of the indoor heat exchanger has risen. Approximately minutes later, if the temperature of the indoor heat exchanger is adove 6. F, the system returns to its original conditions. Stop All indicator lamps turn OFF. The indoor and outdoor units stop. Operation is restarted within hours (only when AUTO mode is selected with the remote controller). Starts operating in the same operating mode (COOL) and with the same temperature settings as before operation was stopped. Within hours after operation was stopped, it is assumed that there has been no significant change in the indoor and outdoor temperatures, and the previous conditions (COOL) are stored. Operation starts after 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. Frequency control (Hz) Outdoor air temperature is below F. (senconds) Outdoor air temperature is F or higher. () Hz () Hz () Hz () Hz (0) seconds (60) seconds (60) seconds (80) seconds Table (60) seconds (0) seconds (0) seconds (90) seconds

42 (/f fluctuation fan) Control/conditions Unit operation Explanation SENSOR DRY The ON/OFF operation button on the remote controller is pressed. The operation lamp illuminates. The indoor fan operates at the set fan speed. The outdoor unit stops. The outdoor unit does not operate for minutes even after the breaker is turned ON. The outdoor unit starts. The frequency is increased at the rate of 0. Hz every seconds. (Compressor and the outdoor fan start.) When the frequency reaches Hz, frequency increases are stopped for a period of seconds. (Refer to Table.) This is in order to stabilize the return of oil to the compressor. The frequency then increases. If the indoor and outdoor temperatures are high, the current peak cut-off activates, stopping any increases in frequency. The room temperature reaches the desired temperature, and there is no need for further cooling. DRY operation starts DRY A operation The indoor fan changes between "Low" and "LL" (very low) over a 6-minute cycle. This is /f fluctuation fan operation. (Refer to Fig..) Operating frequency is stabilized in order to maintain a comfortable environment. Operates to effectively dehumidify the air while not excessively reducing the indoor temperature. The indoor unit operates at /f fluctuation fan operation, at a fan speed that does not cause a chilly feeling. The room temperature is 9 F or higher, and is slightly too cold. DRY B operation () The indoor fan changes between "Low" and "LL" (very low) over a 6-minute cycle. This is /f fluctuation fan operation. The compressor operates on a -minutes ON, 6-minutes OFF cycle, to prevent the room temperature from dropping too much. () After appoximately minutes, the compressor turns OFF, the outdoor fan turns OFF, and the indoor fan turns OFF. () After approximately 6 minutes, the conditions return to (). The room temperature is below 9 F. Monitoring operation begins. When monitoring operation begins, the compressor stops, and the indoor fan operates at "LL" (very low) speed. /f fluctuation fan 0 00 (Step) minute cycle Fig.