IMPORTANTThese air conditioners employ newrefrigerant R410A.Pay special attention whenservicing the unit.●Wall mounted type KMS0772 KMS0972 K
Outdoor Unit CM3172Indoor Unit KMS0972 × 4< 230V >Remarks:1. The values shown in performance section and electrical rating section above are ba
Outdoor Unit CM3172Indoor Unit KMS0972 × 4< 208V >Remarks:1. The values shown in performance section and electrical rating section above are ba
Outdoor Unit CM19722-2-1. Outdoor UnitControl PCBControl Circuit Fuse ControlsPart No.Microprocessor250V 25ACB-CM1972DATA SUBJECT TO CHANGE WITHOUT N
Outdoor Unit CM2472Control PCBControl Circuit Fuse ControlsPart No.Microprocessor250V 25ACB-CM2572DATA SUBJECT TO CHANGE WITHOUT NOTICE.Pints (cc) - M
Outdoor Unit CM3172Control PCBControl Circuit Fuse ControlsPart No.Microprocessor250V 25ACB-CM3172DATA SUBJECT TO CHANGE WITHOUT NOTICE.Pints (cc) - M
Temperature F ( C)4035302520151050(-20)(-15)(-10) (-5) (0) (5) (10) (15) (20)-4514 23 32 41 50 59 68Resistance (k ohm)032 50 68 86 104 122 140 158 1
Wide tube service valvedia.3/8" (9.52) × 3Narrow tube service valvedia.1/4" (6.35) × 34-7/165-29/32 2-27/32 2-3/42-1/32 4-1/22-15/162-3/429-
Wide tube service valvedia.3/8" (9.52) × 3Narrow tube service valvedia.1/4" (6.35) × 4Wide tube service valvedia.1/2" (12.70) × 14-7/16
Wide tube service valvedia.3/8" (9.52) × 2Narrow tube service valvedia.1/4" (6.35) × 4Wide tube service valvedia.1/2" (12.70) × 24-7/16
CompressorHigh pressureswitchH.P.MainaccumulatorSubaccumulatorService valve onnarrow tubeService valve onwide tubeCNBNANCWBWAWO.D.1/4"O.D.1/4&quo
When WiringELECTRICAL SHOCK CAN CAUSE SEVERE PERSONAL INJURY OR DEATH. ONLY A QUALIFIED, EXPERIENCED ELECTRICIAN SHOULD ATTEMPT TO WIRE THIS SYSTEM.SP
Outdoor Unit CM2472Insulation of Refrigerant TubingBecause capillary tubing is used in the outdoor unit, both thewide and narrow tubes of this air co
Service valve onnarrow tubeElectric expansion valveService valve onwide tube DNCNBNANDWCWBWAWO.D.1/4"O.D.1/4"O.D.1/4"O.D.1/4"O.D.3
Cooling Characteristics(RH : 46%, Indoor fan speed : High fan)(230V, 60Hz)(1) Low pressure performance chart(2) Operating current performance chart(3)
Cooling Characteristics(RH : 46%, Indoor fan speed : High fan)(230V, 60Hz)(1) Low pressure performance chart(2) Operating current performance chart(3)
Outdoor Unit CM1972 Indoor Unit KMS1272 × 1Cooling Characteristics(RH : 46%, Indoor fan speed : High fan)(230V, 60Hz)(1) Low pressure performan
Cooling Characteristics(RH : 46%, Indoor fan speed : High fan)(230V, 60Hz)(1) Low pressure performance chart(2) Operating current performance chart(3)
Cooling Characteristics(RH : 46%, Indoor fan speed : High fan)(230V, 60Hz)(1) Low pressure performance chart(2) Operating current performance chart(3)
Cooling Characteristics(RH : 46%, Indoor fan speed : High fan)(230V, 60Hz)(1) Low pressure performance chart(2) Operating current performance chart(3)
Outdoor Unit CM2472 Indoor Unit KMS1272 × 1Cooling Characteristics(RH : 46%, Indoor fan speed : High fan)(230V, 60Hz)(1) Low pressure performan
Cooling Characteristics(RH : 46%, Indoor fan speed : High fan)(230V, 60Hz)(1) Low pressure performance chart(2) Operating current performance chart(3)
Table of Contents45612151619223639424547484950545556575758606161A-1A-2...
Cooling Characteristics(RH : 46%, Indoor fan speed : High fan)(230V, 60Hz)(1) Low pressure performance chart(2) Operating current performance chart(3)
Cooling Characteristics(RH : 46%, Indoor fan speed : High fan)(230V, 60Hz)(1) Low pressure performance chart(2) Operating current performance chart(3)
Cooling Characteristics(RH : 46%, Indoor fan speed : High fan)(230V, 60Hz)(1) Low pressure performance chart(2) Operating current performance chart(3)
Cooling Characteristics(RH : 46%, Indoor fan speed : High fan)(230V, 60Hz)(1) Low pressure performance chart(2) Operating current performance chart(3)
146(1.0)174(1.2)118(0.8)90(0.6)Cooling Characteristics(RH : 46%, Indoor fan speed : High fan)(230V, 60Hz)(1) Low pressure performance chart(2) Operati
146(1.0)174(1.2)118(0.8)90(0.6)Cooling Characteristics(RH : 46%, Indoor fan speed : High fan)(230V, 60Hz)(1) Low pressure performance chart(2) Operati
Outdoor Unit : CM1972Indoor Unit : KMS0972 × 3Power Supply : 230V Single Phase 60Hz< Cooling Capacity >5-2. Cooling CapacityTC : Total Co
Outdoor Unit : CM2472Indoor Unit : KMS0972 × 3Power Supply : 230V Single Phase 60Hz< Cooling Capacity >TC : Total Cooling Capacity (BTU/h)
Outdoor Unit : CM3172Indoor Unit : KMS0972 × 4Power Supply : 230V Single Phase 60Hz< Cooling Capacity >TC : Total Cooling Capacity (BTU/h)
8FA2-5257-58800-1WHTREACTANCEWHTYELYELBLKBLKBLKBLK1111122112212 2223344COIL/OUTDOORYELYELYELYEL11223344A-THCOILTHERMISTORCOMPRESSORTHERMISTORAW THERMI
APPLICABLE INDOOR UNITSCM1972CM2472CM3172Multi-Outdoor UnitIndoor Unit3-Room4-Room4-RoomKMS0772YESYESYESYESYESYESYESYESYESYESYESYESNOYESYESKMS0972
8FA2-5257-59000-1WHTREACTANCEWHTYELYELBLKBLKBLKBLK1111122112212 2223344COIL/OUTDOORYELYELYELYEL11223344A-THCOILTHERMISTORCOMPRESSORTHERMISTORAW THERMI
8FA2-5257-89300-1WHTREACTANCEWHTYELYELBLKBLKBLKBLK1111122112212 2223344COIL/OUTDOORYELYELYELYEL11223344A-THCOILTHERMISTORCOMPRESSORTHERMISTORAW THERMI
7. FUNCTIONS7-1. Explanation of FunctionsThe numerical values such as temperature, frequency, time and current in parentheses are an example of CM31
Control/conditionsCOOLThe ON/OFF operation button on the remote controller is pressed.The room temperature has reached the desired temperature.The out
Control/conditionsSENSOR DRY(1/f fluctuation fan)The ON/OFF operation button on the remote controller is pressed.The outdoor unit does not operate for
7-2. Protective FunctionsThe numerical values such as temperature, frequency, time and current in parentheses are an example of CM3172 and the values
Current(A)Frequency (Hz)TripHz reductionHz increaseprohibitHz reductionHz increase prohibitHz reductionHz increase prohibit(16)(15.6)0(30)Example of o
8. TROUBLESHOOTING8-1. Precautions before Performing Inspection or RepairBoth the indoor unit and outdoor unit include electronic control circuits.
8-2. Trouble Diagnosis by Error Monitor LampsWARNINGTo prevent electric shock, do not inspect or repair until the Power Lamp on the P.C.Board is turn
8-3-1. Checking the outdoor unit8-3. Checking the Outdoor SystemWork procedureApply 220 V AC between terminals L1 and L2 on the outdoor unit termina
95 °F D.B. / 71 °F W.B.67 °F D.B. / 57 °F W.B.1. OPERATING RANGEMaximumMinimum115 °F D.B. 67 °F D.B.Temperature Indoor Air Intake Temp. Outdoor Air
8-4. Trouble Diagnosis of Each Part8-4-1. Problems of Each Part and Inspection PointsFor details about the inspection points, refer to the Inspectio
8-4-2. Inspection Points for Each Part(1) Outdoor control circuit boardRefer to 8-3-1. Checking the outdoor unit.(2) FuseCheck it visually or the con
No voltage on circuit board(6) Electric expansion valveWhen replacing the electric expansion valve and coil, be sure to attach the connectors in the c
(7) Branch tubing temperature sensorCheck that the sensor is securely contained in the thermostat holder.(8) BreakerCheck whether or not the breaker h
8-5. Trouble Diagnosis of Fan MotorThis outdoor DC fan motor contains an internal control PCB. Therefore, it is not possible to measure the coil resi
9. REFRIGERANT R410A: SPECIAL PRECAUTIONS WHEN SERVICING UNIT9-1. Characteristics of New Refrigerant R410A9-1-1. What is New Refrigerant R410A?R410
Tubing precautionsRefrigerant R410A is more easily affected by dust or moisture compared with R22, thus be sure to temporarily cover the ends of the t
9-3. Tools Specifically for R410A For servicing, use the following tools for R410AGauge manifoldCharging hoseGas leak detectorRefrigerant cylinderCha
9-5. In Case of Compressor Malfunction CAUTIONShould the compressor malfunction, be sure to make the switch to a replacement compressor as quickly as
ValveSingle valveCharge liquid refrigerant with cylinder in up-side-down position.Single valve (with siphon tube)Charge with cylinder in normal positi
2. SPECIFICATIONS2-1. Unit SpecificationsOutdoor Unit CM1972Indoor Unit KMS0972 × 3Remarks:1. The values shown in performance section and electrica
Length of tubingEvacuation timeLess than 33 ft. (10 m)More than 10 minutesMore than 33 ft. (10 m)More than 15 minutes9-6. In Case Refrigerant is Lea
9-7. Charging Additional Refrigerant9-7-1. When Tubes are ExtendedObserve the proper amount of refrigerant as stated in this service manual or the i
INSTALLATION INSTRUCTIONSCM1972CM2472CM3172(II-852-6-4190-214-00-3)APPENDIX AA-1
85264190214003 © SANYO 2007ContentsPageIMPORTANT!Please Read Before Starting ... 21. GENERAL ...
2IMPORTANT! Please Read Before StartingThis air conditioning system meets strict safety and operatingstandards. As the installer or service person, it
31. GeneralThis booklet briefly outlines where and how to install theair conditioning system. Please read over the entire setof instructions for the
41-5. Additional Materials Required for Installation1. Refrigeration (armored) tape2. Insulated staples or clamps for connecting wire(See local codes
5G Install the indoor unit more than 3.3' (1 m) away from anyantenna or power lines or connecting wires used for tele-vision, radio, telephone, s
6(B)Fig. 4bUnion 1/2"(12.70mm)1/2"(12.70mm)Flare 3/8"(9.52mm)A joint for connecting tubes ofdifferent sizes(3/8"(9.52mm) 1/2&q
7(B)Fig. 4dCBA(KMS0772,KMS0972,KMS1272)(KMS0772,KMS0972,KMS1272)DOutdoor unit Indoor unit(KMS0772,KMS0972,KMS1272)(KMS1872)1/2"(12.70mm)1/2"
Outdoor Unit CM1972Indoor Unit KMS0972 × 3< 208V >Remarks:1. The values shown in performance section and electrical rating section above are ba
8(A)Fig. 4gUnion 3/8"(9.52mm)Flare 1/2"(12.70mm)(1/2"(12.70mm) 3/8"(9.52mm)) Supplied ReducerCBA(KMS0772,KMS0972,KMS1272)(KMS0
9(D)Fig. 4jUnion 5/8"(15.88mm)Flare 1/2"(12.70mm)(1/2"(12.70mm) 5/8"(15.88mm))Locally purchasedCBA(KMS0772,KMS0972,KMS1272)(KM
2-3. Outdoor UnitAVOID:G heat sources, exhaust fans, etc. (Fig. 5a)G damp, humid or uneven locations.DO:G choose a place as cool as possible.G choose
11(1) Recommended dimensions of the baffle platesDFECJHLIBKQRAGO(3- 6.5 mm) 3- 1/4"(2- 6 mm) 2- 15/64"ABHCEFKIJGGD(4- 6.5 m
12(3) Installation procedurePanel topPanel frontPanel side RPanel side L1. Air Intake Baffle(1) Left side1. Remove the top panel from the unit.2. Remo
13Fig. 6a23-15/165-11/3215/3235-7/16 (900)13-19/3212-19/3214-17/322-29/3229-1/8 (740)23/321-13/162-1/165-29/322-27/322-3/42-1/324-7/162-15/162-3/44-1/
142-6. Diagram of Outdoor Unit InstallationNever install only a single indoor unit.Be sure to connect indoor and outdoor units only in combinations t
153. Installation Process3-1. Embedding the Tubing and WiringG Do not connect tubes to locations that are embedded.G Be sure to bind refrigerant tub
16When reaming, hold the tube end downward and be sure thatno copper scraps fall into the tube. (Fig. 9)(3) Remove the flare nut from the unit and be
173-6. Insulation of Refrigerant TubingTo prevent heat loss and wet floors due to dripping of con-densation, both tubes must be well insulated with a
Outdoor Unit CM2472Indoor Unit KMS0972 × 3< 230V >Remarks:1. The values shown in performance section and electrical rating section above are ba
184. Air PurgingAir and moisture remaining in the refrigerant system have undesirable effects as indicated below. Therefore, they must be purged comp
19(4) With the “Lo” knob of the manifold valve open andhigh-pressure valve (“Hi”) closed completely, runthe vacuum pump. Run the pump until the pres-s
20I Pump DownG When relocating or disposing of the A/C, request this service fromthe dealer where the unit was purchased, or from an appropriateagent.
215. Wiring Instructions5-1. General Precautions on Wiring(1) Before wiring, confirm the rated voltage of the unit asshown on its nameplate, then ca
22WARNINGG Be sure to comply with local codes on running thewire from the indoor unit to the outdoor unit (sizeof wire and wiring method, etc.).G Each
23When connecting each power wire to the correspondingterminal, follow the instructions “How to connect wiringto the terminal” and fasten the wire sec
24123123123123Indoor unit DIndoor unit BIndoor unit AIndoor unit CGroundPower: Single-phase, 230/208VAC 60HZPower switch(not provided)Outdoor unit ATe
25Regulations on wire size differ from locality to locality. Forfield wiring requirements, please refer to your local electri-cal codes. Make sure tha
7. Connecting a Home Automation deviceThe HA (white) 4P terminal is located on the indoor unit PCB. If a HA device will be used, connect it to this t
UNIT COMBINATION TABLESAPPENDIX BBe sure to operate the air conditioning system only when 2 or more indoor units have been installed. If operated with
Outdoor Unit CM2472Indoor Unit KMS0972 × 3< 208V >Remarks:1. The values shown in performance section and electrical rating section above are ba
3-Room Outdoor Unit Combination TableSave this Combination Table!Please be sure to hand over this sheet to the user. Pub. OI-85264180818004 © SANYO 20
NOTE< Combinations of operatable indoor units >CM1972(Rated cooling capacity at 230V: 19700 BTU/h)Voltage Rating : 230V 60Hz 7500 : KMS0772
NOTECM1972(Rated cooling capacity at 208V: 19700 BTU/h)Voltage Rating : 208V 60Hz 7500 : KMS0772 9000 : KMS0972 11900 : KMS1272 17500 : KMS18
Save this Combination Table!Please be sure to hand over this sheet to the user. Pub. OI-85264180819004 © SANYO 2008<Combinations of Connectable Ind
NOTE< Combinations of operatable indoor units >CM2472(Rated cooling capacity at 230V: 25400 BTU/h)Voltage Rating : 230V 60Hz 7500 : KMS0772
NOTECM2472(Rated cooling capacity at 208V: 24400 BTU/h)Voltage Rating : 208V 60Hz 7500 : KMS0772 9000 : KMS0972 11900 : KMS1272 17500 : KMS18
Pub. OI-85264180820004 © SANYO 2008<Combinations of Connectable Indoor Units>The combinations of the indoor units listed in Table 1 and Table 2
NOTE< Combinations of operatable indoor units >CM3172(Rated cooling capacity at 230V: 30600 BTU/h)-2-Voltage Rating : 230V 60Hz 7500 : KMS07
NOTECM3172(Rated cooling capacity at 208V: 28600 BTU/h)Voltage Rating : 208V 60Hz 7500 : KMS0772 9000 : KMS0972 11900 : KMS1272 17500 : KMS18
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