Sanyo C2472 manual

IMPORTANT These air conditioners employ new refrigerant R410A. Pay special attention when servicing the unit. TECHNICAL & SER VICE MANU AL KS1872 + C1872 + CL1872 KS2472 + C2472 + CL2472 DC INVER TER SPLIT SYSTEM AIR CONDITIONER Indoor Unit FILE NO . Destination: Nor th America Outdoor Model No. C1872 C2472 CL1872 CL2472 Product Code No. 1 852 [...]

When Wiring ELECTRICAL SHOCK CAN CA USE SEVERE PERSONAL INJUR Y OR DEA TH. ONL Y A QU ALIFIED , EXPERIENCED ELECTRICIAN SHOULD A TTEMPT TO WIRE THIS SYSTEM. SPECIAL PRECA UTIONS This symbol refers to a hazar d or unsafe practice which can result in severe per sonal injury or death. This symbol refers to a hazar d or unsafe practice which can result[...]

Ta b le of Contents 1. OPERA TING RANGE 2. SPECIFICA TIONS 2-1. Unit Specifications 2-2. Major Component Specifications 2-3. Other Component Specifications 3. DIMENSIONAL D A T A 4. REFRIGERANT FLO W DIA GRAM 4-1. Refrigerant Flow Diagr am 5. PERFORMANCE D A T A 5-1. T emper ature Char ts 5-2. Air Throw Distance Char ts 6. ELECTRICAL D A T A 6-1. E[...]

10. TROUBLESHOO TING 10-1. Precautions bef ore P erf or ming Inspection or Repair 10-2. Method of Self-Diagnostics 10-3. Checking the Indoor and Outdoor Units 10-4. T roub le Diagnosis of F an Motor 10-5. Noise Malfunction and Electromagnetic Interf erence 11. CHECKING ELECTRICAL COMPONENTS 11-1. Measurement of Insulation Resistance 11-2. Checking [...]

95 ° F D .B. / 71 ° F W .B. 67 ° F D .B. / 57 ° F W .B. 1. OPERA TING RANGE Maximum Minimum 115 ° F D .B. 67 ° F D .B. T emperature Indoor Air Intake T emp. Outdoor Air Intake T emp. Cooling 95 ° F D .B. / 71 ° F W .B. 67 ° F D .B. / 57 ° F W .B. Maximum Minimum 115 ° F D .B. 0 ° F D .B. T emperature Indoor Air Intake T emp. Outdoor Air[...]

6 2. SPECIFICA TIONS 2-1. Unit Specifications Indoor Unit KS1872 Outdoor Unit C1872 DATA SUBJECT TO CHANGE WITHOUT NOTICE. Remarks: Rating conditions are: Cooling: Indoor air temperature 80°F D.B . / 67°F W.B. Outdoor air temperature 95°F D.B . / 75°F W.B. ( 4,100 to 17,700 ) Air Circulation (High) Shipping Volume 20 Voltage Rating Pints/h Capa[...]

7 Indoor Unit KS1872 Outdoor Unit C1872 DATA SUBJECT TO CHANGE WITHOUT NOTICE. Remarks: Rating conditions are: Cooling: Indoor air temperature 80°F D.B . / 67°F W.B. Outdoor air temperature 95°F D.B . / 75°F W.B. ( 4,100 to 17,700 ) Air Circulation (High) Shipping Volume 4.24 (0.12) 9.89 (0.28) 33.1 (15.0) 99.2 (45.0) 14-31/32 (380) 26.5 (12.0)[...]

8 Indoor Unit KS2472 Outdoor Unit C2472 DATA SUBJECT TO CHANGE WITHOUT NOTICE. Remarks: Rating conditions are: Cooling: Indoor air temperature 80°F D.B . / 67°F W.B. Outdoor air temperature 95°F D.B . / 75°F W.B. ( 4,100 to 24,200 ) Air Circulation (High) Shipping Volume 4.24 (0.12) 12.71 (0.36) 33.1 (15.0) 127.9 (58.0) 16-1/4 (413) 26.5 (12.0)[...]

9 Indoor Unit KS2472 Outdoor Unit C2472 DATA SUBJECT TO CHANGE WITHOUT NOTICE. Remarks: Rating conditions are: Cooling: Indoor air temperature 80°F D.B . / 67°F W.B. Outdoor air temperature 95°F D.B . / 75°F W.B. ( 4,100 to 24,200 ) Air Circulation (High) Shipping Volume A Voltage Rating Pints/h Capacity ft 3 /min (m 3 /h) Performance Electrica[...]

10 Indoor Unit KS1872 Outdoor Unit CL1872 DATA SUBJECT TO CHANGE WITHOUT NOTICE. Remarks: Rating conditions are: Cooling: Indoor air temperature 80°F D.B . / 67°F W.B. Outdoor air temperature 95°F D.B . / 75°F W.B. ( 4,100 to 17,700 ) Air Circulation (High) Shipping Volume A Voltage Rating Pints/h Capacity ft 3 /min (m 3 /h) Performance Electri[...]

11 Indoor Unit KS1872 Outdoor Unit CL1872 DATA SUBJECT TO CHANGE WITHOUT NOTICE. Remarks: Rating conditions are: Cooling: Indoor air temperature 80°F D.B . / 67°F W.B. Outdoor air temperature 95°F D.B . / 75°F W.B. ( 4,100 to 17,700 ) Air Circulation (High) Shipping Volume 20 42 / 38 / 30 / 28 51 4.24 (0.12) 9.89 (0.28) (15.0) 99.2 (45.0) (380)[...]

12 Indoor Unit KS2472 Outdoor Unit CL2472 DATA SUBJECT TO CHANGE WITHOUT NOTICE. Remarks: Rating conditions are: Cooling: Indoor air temperature 80°F D.B . / 67°F W.B. Outdoor air temperature 95°F D.B . / 75°F W.B. ( 4,100 to 24,200 ) Air Circulation (High) Shipping Volume 20 47 / 44 / 41 / 30 55 4.24 (0.12) 12.71 (0.36) 33.1 (15.0) 127.9 (58.0[...]

13 Indoor Unit KS2472 Outdoor Unit CL2472 DATA SUBJECT TO CHANGE WITHOUT NOTICE. Remarks: Rating conditions are: Cooling: Indoor air temperature 80°F D.B . / 67°F W.B. Outdoor air temperature 95°F D.B . / 75°F W.B. ( 4,100 to 24,200 ) Air Circulation (High) Shipping Volume 20 47 / 44 / 41 / 30 55 4.24 (0.12) 12.71 (0.36) 33.1 (15.0) 127.9 (58.0[...]

14 2-2. Major Component Specifications 2-2-1. Indoor Unit Indoor Unit KS1872 DATA SUBJECT TO CHANGE WITHOUT NOTICE. Micro F VAC - Over-Heat Protection (Ambient Temp. 68 o F (20 o C)) Coil Resistance Ohm Coil Resistance Ohm Safety Device Flap Motor Type Stepping Motor Rough Measure RPM (Cool) Run Capacitor Type DC Motor Q'ty ... Dia. and Length[...]

15 Indoor Unit KS2472 DATA SUBJECT TO CHANGE WITHOUT NOTICE. Micro F VAC - Yes Yes - Internal Controller Aluminum Plate Fin / Copper Tube 2 Heat Exchanger Coil Face Area ft 2 (m 2 ) 3.07 (0.285) Coil Rows Fins per inch 19.5 Microprocessor 250V 3A Control Circuit Fuse Controls 1 ... D3-11/16 / L33-9/32 (D94/L845) RCS-4VPIS4U Fan Cross-Flow Remote Co[...]

16 2-2-2. Outdoor Unit Outdoor Unit C1872 DATA SUBJECT TO CHANGE WITHOUT NOTICE. Pints (cc) Ohm R - S : 0.482 S - T : 0.482 T - R : 0.482 CT (Peak current cut-off control) Compressor Discharge Temp. Control Operation cut-off control in abnormal ambient Temp. Model Operation Temp. Micro F VAC RED - WHT : 77.5 WHT - BLU : 77.5 BLU - RED : 77.5 Type O[...]

17 Outdoor Unit C2472 DATA SUBJECT TO CHANGE WITHOUT NOTICE. Pints (cc) Ohm U - V : 0.36 V - W : 0.36 W - U : 0.36 CT (Peak current cut-off control) Compressor Discharge Temp. Control Operation cut-off control in abnormal ambient Temp. Model Operation Temp. Micro F VAC Type Over- Current Protection Over- Heat Protection Micro F VAC DC Motor Q'[...]

18 Outdoor Unit CL1872 DATA SUBJECT TO CHANGE WITHOUT NOTICE. Pints (cc) Ohm R - S : 0.482 S - T : 0.482 T - R : 0.482 CT (Peak current cut-off control) Compressor Discharge Temp. Control Operation cut-off control in abnormal ambient Temp. Model Operation Temp. Micro F VAC RED - WHT : 77.5 WHT - BLU : 77.5 BLU - RED : 77.5 Type Over- Current Protec[...]

19 Outdoor Unit CL2472 DATA SUBJECT TO CHANGE WITHOUT NOTICE. Pints (cc) Ohm U - V : 0.36 V - W : 0.36 W - U : 0.36 CT (Peak current cut-off control) Compressor Discharge Temp. Control Operation cut-off control in abnormal ambient Temp. Model Operation Temp. Micro F VAC Type Over- Current Protection Over- Heat Protection Micro F VAC SIC-71FW-D490-1[...]

2-3. Other Component Specifications Indoor Unit KS1872 KS2472 Outdoor Unit C1872 C2472 CL1872 CL2472 0 32 50 68 86 104 122 140 158 176 194 (0) (10) (20) (30) (40) (50) (60) (70) (80) (90) 40 60 80 100 120 140 160 180 200 20 50 1 0 2 3 4 5 6 7 8 9 10 59 68 77 86 95 104 (10) (15) (20) (25) (30) (35) (40) Indoor air temp sensor (Model:PTM-D51H-S3 TH2)[...]

3. DIMENSIONAL D A T A Indoor Unit KS1872 KS2472 Unit: inch(mm) 21[...]

Unit: inch(mm) Narrow tube service valv e dia.1/4" (6.35) Wide tube service valve dia.1/2" (12.70) 4-3/8 2-5/32 6-17/32 5-23/32 3/32 26-3/8 (670) 23/32 1-13/16 34-21/32 (880) 23-15/16 5-11/32 15/32 11-7/32 (285) 12-7/32 13-5/32 11-17/32 ID:23/32 2-ID:15/16 1-3/8 2-17/32 2-13/32 Outdoor Unit C1872 CL1872 22[...]

Wide tube service valve dia.5/8" (15.88) Narrow tube service valv e dia.1/4" (6.35) 4-7/16 5-29/32 2-1/32 4-1/2 29-1/8 (740) 23/32 1-21/32 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 ID:23/32 2-ID:15/16 1-3/8 2-15/16 2-7/8 Unit: inch(mm) Outdoor Unit C2472 CL2472 23[...]

Compressor Accumulator Wide tube service valve Wide tube Narrow tube service valve Narrow tube Heat exchanger Heat exchanger Muffler Cooling cycle Indoor unit Outdoor unit Electric expansion valve M *1 *1 O.D.1/2"(12.7mm) ... 1872 class O.D.5/8"(15.88mm) ... 2472 class O.D. 1/4" (6.35 mm) H.P. High pressure switch 4. REFRIGERANT FLO [...]

5. PERFORMANCE D A T A 5-1. T emperature Char ts Indoor Unit KS1872 Outdoor Unit C1872 Check each performance value in test-run mode. Electrical performance values represent a combined indoor/outdoor value. Overload prevention operates to protect the air conditioner when outdoor ambient temperature becomes extremely high in heating mode. (Refer to [...]

Indoor Unit KS1872 Outdoor Unit CL1872 NO TE Check each performance value in test-run mode. Electrical performance values represent a combined indoor/outdoor value. Overload prevention operates to protect the air conditioner when outdoor ambient temperature becomes extremely high in heating mode. (Refer to "9-2. Overload prevention during heat[...]

Indoor Unit KS2472 Outdoor Unit C2472 NO TE Check each performance value in test-run mode. Electrical performance values represent a combined indoor/outdoor value. Overload prevention operates to protect the air conditioner when outdoor ambient temperature becomes extremely high in heating mode. (Refer to "9-2. Overload prevention during heati[...]

Indoor Unit KS2472 Outdoor Unit CL2472 NO TE Check each performance value in test-run mode. Electrical performance values represent a combined indoor/outdoor value. Overload prevention operates to protect the air conditioner when outdoor ambient temperature becomes extremely high in heating mode. (Refer to "9-2. Overload prevention during heat[...]

Horizontal distance (ft.) Axis air velocity (ft./sec.) Vertical distance (ft.) Room air temp. : 80 ° F (26.7 ° C) Fan speed : High Cooling : Flap angle 0 , : Axis air velocity 0 : Flap angle 30 , : Axis air velocity 30 5-2. Air Thr ow Distance Charts Indoor Unit KS1872 29 0 5 10 15 05 1 0 15 20 25 30[...]

Horizontal distance (ft.) Axis air velocity (ft./sec.) Vertical distance (ft.) Room air temp. : 80 ° F (26.7 ° C ) Fan speed : High Cooling : Flap angle 0 , : Axis air velocity 0 : Flap angle 30 , : Axis air velocity 30 Indoor Unit KS2472 30 0 5 10 15 05 1 0 15 20 25 30[...]

6. ELECTRICAL DA T A 6-1. Electrical Characteristics Indoor Unit KS1872 Outdoor Unit C1872 Indoor Unit Outdoor Unit Fan Motor Fan Motor + Compressor Performance at 230V Single-phase 60Hz Rating conditions Running amp. A 0.3 Power input W A W A W A W 32 6.7 1,468 Rating conditions: Indoor air temperature: 80 ° F (26.7 ° C ) D.B. / 67 ° F (19.4 °[...]

Indoor Unit KS2472 Outdoor Unit C2472 Indoor Unit Outdoor Unit Fan Motor Fan Motor + Compressor Performance at 230V Single-phase 60Hz Rating conditions Running amp. A 0.5 Power input W A W A W A W 55 10.3 2,300 Rating conditions: Indoor air temperature: 80 ° F (26.7 ° C ) D.B. / 67 ° F (19.4 ° C ) W.B. Outdoor air temperature: 95 ° F (35 ° C [...]

EVAPORATOR TERMINAL BASE TO OUTDOOR UNIT GRN/YEL LAMP 10P( WHT ) FLAP 5P (WHT) FLAP CONNECTOR FLAP MOTOR RED PNK BLU BRN YEL 1 2 3 4 5 1 2 3 4 5 1 2 3 4 5 1 2 3 4 5 AC1 AC2 SI WHT RED WHT WHT WHT WHT WHT WHT WHT WHT 1 2 3 4 5 6 7 8 9 10 1 2 3 4 5 6 7 8 9 10 1 2 3 4 5 6 7 8 9 10 1 2 3 4 5 6 7 8 9 10 IND LAMP ASSY ROOM/COIL 4P( WHT ) DCM 6P(BLU) CONT[...]

8FA2-5257-68600-2 REACTANCE NL GND 1 2 3 4 5 6 POWER SUPPLY 3 2 1 1 2 3 CM COMPRESSOR MOTOR RED (PNK) WHT BLU RED (PNK) WHT BLU FERRITE CORE 3P - CONNECTOR (WHT) R S T W W W W W CONTROLLER 1 2 3 4 1 2 3 4 5 5 1 2 3 4 1 2 3 4 5 5 1 2 3 4 1 2 3 4 1 2 1 2 L1 W L2 W HIC + W HIC + E1 25A MV0 DCFM COMP A-TH U W V 2P-CONNECTOR ( WHT ) WHT WHT WHT WHT GRN/[...]

NL GND 1 2 3 4 5 6 POWER SUPPLY TERMINAL PLATE FERRITE CORE GND TO INDOOR UNIT POWER RELAY 6 1 4 5 BLK BLK WHT BLK BLK 2P-CONNECTOR (BLK) HIGH PRESSURE SWITCH 1 1 2 2 WHT W ACIN1 W ACIN2 W SI-A BLK WHT RED BLK 8FA2-5257-68700-3 REACTANCE 3 2 1 1 2 3 CM COMPRESSOR MOTOR RED (PNK) WHT BLU RED (PNK) WHT BLU FERRITE CORE 3P - CONNECTOR (WHT) U V W W W [...]

NL GND 1 2 3 4 5 6 POWER SUPPLY TERMINAL PLATE FERRITE CORE GND TO INDOOR UNIT POWER RELAY 6 1 4 5 BLK BLK WHT BLK BLK 2P-CONNECTOR (BLK) HIGH PRESSURE SWITCH 1 1 2 2 WHT W ACIN1 W ACIN2 W SI-A BLK WHT RED BLK 8FA2-5257-68400-3 REACTANCE 3 2 1 1 2 3 CM COMPRESSOR MOTOR RED (PNK) WHT BLU RED (PNK) WHT BLU FERRITE CORE 3P - CONNECTOR (WHT) U V W W W [...]

WARNING 7. INSTALLATION INSTRUCTIONS 7-1. Installation Site Selection 7-1-1. Indoor Unit To prevent abnormal heat generation and the possibility of fire, do not place obstacles, enclosures and grilles in front of or surrounding the air conditioner in a way that may block air flow. For stable operation of the air conditioner, do not install wall-mou[...]

Fig. 5c Air intake Min. 4" (10 cm) Air discharge Min. 2" (5 cm) Min. 1'4" (40 cm) V alve side Min. 10" (25 cm) Min. 7' (2 m) Min. 7' (2 m) Ground b Os e l c a t Obstacle abov e i d r i Asr a h cg e Min. 4" (10 cm ) Air intake Air intake Concrete or equal ) m c 0 1 ( " 4 t u o b A Min. 4" (10 cm) Anc[...]

Disconnect switch Field supply 1 2 3 1 2 3 4 5 6 Grounding line 230 / 208V 230 / 208V 230 / 208V INDOOR UNIT OUTDOOR UNIT Grounding line L1 L2 Power supply Single phase 230 / 208V 60HZ Terminal T erminal (A) (B) (C) (B) (A) Power Supply Wiring Length (ft.) (B) Power Line Length (ft.) (C) Control Line Length (ft.) (A)+(B) WARNING 7-2. Recommended Wi[...]

7-3. Remote Control Unit Installation Position The remote control unit can be operated from either a non-fixed position or a wall-mounted position. To ensure that the air conditioner operates correctly, do not install the remote control unit in the following places: In direct sunlight Behind a curtain or other place where it is covered More than 26[...]

Fig. 8a Fig. 8b Fig. 8c 1HR. TIMER ON/OFF operation ACL (Reset) ION bu tton button button bu tton OPERATION lamp TIMER lamp QUIET lamp ION lamp After turning on power to the air conditioner, use the remote controller and follow the steps below to conduct the test run. (1) Set the remote controller in Test Run mode. (Fig. 8a) a) b) c) Press and hold[...]

Air intake grille Grille Fig. 9a Fig. 9b Cover Thermistor Fig. 10a Thermistor Fig. 10b Fig. 11a Tab Tab Fig. 11b Fig. 12b Pin Groove Fig. 12a 7-5. Remove the Grille to Install the Indoor Unit Basically, these models can be installed and wired without removing the grille. If access to any internal part is needed, follow the steps as given below. How[...]

1HR. TIMER button ON/OFF operation button ACL (Reset) button ION button 8. MAINTENANCE 8-1. Address Setting of the Remote Control Unit The address can be set in order to prevent interference between remote controllers when two Sanyo indoor units are installed near each other. The address is normally set to "A." To set a different address,[...]

One of the two types of connectors illustrated at left is used. Their basic structure is the same for each. How to Disconnect Hold the resin connector cover, and pull the connector off. You cannot disconnect the connector by pulling the wire since it is locked inside. Always hold the cover to disconnect. (See illustration at left.) For the connecto[...]

Emergency operation SENSOR DR Y During DR Y operation, the system adjusts the room temperature and f an speed according to the conditions in the room, in order to maintain a comf or table room environment. SENSOR DR Y operation DR Y operation is as shown in the figure belo w . P AM- contr ol In order to fur ther improv e inv er ter perf or mance, c[...]

HIGH PO WER NIGHT SETB A CK Lamp colors Timer backup This function acts to raise the pow er but keeps the A C system in the same operating mode. This function is set with the HIGH PO WER button on the remote controller . (It can be set regardless of the temperature and f an speed settings.) HIGH PO WER operation from remote contr oller The unit ope[...]

Compressor dischar g e temperature contr ol Freeze prevention During COOL or DR Y operation, freezing is detected and operation is stopped when the temperature of the indoor heat e xchanger matches the conditions below . 1. F reeze-pre vention operation is engaged when the temperature of the indoor heat e xchanger is below 43 ° F(6 ° C). 2. Resta[...]

1HR. TIMER button ON/OFF operation button ACL (Reset) button ION button < Clock display > Test run mode Self-diagnostics mode 10. TROUBLESHOOTING 10-1. Precautions before Performing Inspection or Repair NO TE PROCEDURE After checking the self-diagnostics monitor , tur n the power OFF bef ore star ting inspection or repair . High-capacity elec[...]

Indication on indoor unit .... OFF Timer Operation Code Diagnostics item Diagnostics contents Since the indications cover various units, the corresponding parts listed below may not be present in some models. S01 Room temperature sensor f ailure Indoor heat exchanger sensor f ailure Humidity sensor failure Compressor temperature sensor f ailure Out[...]

(2) If the self-diagnostics function fails to operate Check the indoor unit. Is the fuse blown? Replace the controller. Replace the circuit board or the fuse. No indicators illuminate and the indoor fan does not rotate. Check the power voltage. Normal Blown 50[...]

10-3. Checking the Indoor and Outdoor Units (1) Checking the indoor unit (2) Checking the outdoor unit (3) Checking the serial communications Using the TEST/T-RUN terminals Control No. Check items (unit operation) T -RUN : T est run (compressor and fan motor turn ON). TEST/MV : Compresses time to 1/60th (accelerates operation by 60 times faster tha[...]

[T roub le symptom 3] Motor rotates f or some time (sev eral seconds), b ut then quickly stops, when the indoor unit operates . (There is trouble in the system that pro vides feedbac k of motor rotation speed from the motor to the indoor unit controller .) [T roub le symptom 4] F an motor rotation speed does not change during indoor unit operation.[...]

10-4-2. Outdoor Fan Motor This outdoor DC f an motor contains an inter nal control PCB. Theref ore, it is not possible to measure the coil resistance, and the f ollowing procedure should be used to chec k the motor . To perf or m diagnosis, f ollow the instructions in "(2) Checking the Outdoor Unit" on the pre vious page and set the outdo[...]

10-5. Noise Malfunction and Electromagnetic Interf erence An inv er ter A/C operates using pulse signal control and high frequencies. Therefore , it is susceptible to the eff ects of external noise, and is lik ely to cause electromagnetic interference with nearb y wireless devices . A noise filter is installed f or ordinar y use, prev enting these [...]

Insulation tester Probe Clip Ground wire Terminal plate Copper tube or metallic part Clip Insulation tester Probe Fig. 1 Fig. 2 Fig. 3 Fig. 4 Copper tube or metallic part Clip Insulation tester Probe Clip Insulation tester Probe Metallic part From fan motor, compressor and other parts 11. CHECKING ELECTRICAL COMPONENTS 11-1. Measurement of Insulati[...]

Fuse PCB Ass'y Fig. 5 Fig. 6 Fuse 11-2. Checking Continuity of Fuse on PCB Ass'y Remove the PCB Ass'y from the electrical component box. Then pull out the fuse from the PCB Ass'y. (Fig. 5) Check for continuity using a multimeter as shown in Fig. 6. 56[...]

12. REFRIGERANT R410A: SPECIAL PRECAUTIONS WHEN SERVICING UNIT 12-1. Characteristics of New Refrigerant R410A 12-1-1. What is New Refrigerant R410A? R410A is a new refrigerant that contains two types of pseudo-non-azeotropic refrigerant mixture. Its refrigeration capacity and energy efficiency are about the same level as the conventional refrigeran[...]

Tubing precautions Refrigerant R410A is more easily affected by dust or moisture compared with R22, thus be sure to temporarily cover the ends of the tubing with caps or tape prior to installation. Never use 0.0276" (0.7 mm)-thick copper tubing or tubing which is less than 0.0315" (0.8 mm) in thickness, since air conditioners with R410A a[...]

12-3. Tools Specifically for R410A For servicing, use the following tools for R410A Gauge manifold Charging hose Gas leak detector Refrigerant cylinder Charging cylinder Refrigerant recovery unit Vacuum pump with anti-reverse flow (*1) (Solenoid valve-installed type, which prevents oil from flowing back into the unit when the power is off, is recom[...]

12-5. In Case of Compressor Malfunction CAUTION Should the compressor malfunction, be sure to make the switch to a replacement compressor as quickly as possible. Use only the tools indicated exclusively for R410A. See "12-3. Tools Specifically for R410A." 12-5-1. Procedure for Replacing Compressor (1) Recovering refrigerant Any remaining [...]

Valve Single valve Charge liquid refrigerant with cylinder in up-side-down position. Single valve (with siphon tube) Charge with cylinder in normal position. Liquid Valve Liquid Charging cylinder Open Refrigerant cylinder Liquid NO! CAUTION Never charge a large amount of liquid refrigerant at once to the unit. This may cause damage to the compresso[...]

Length of tubing Evacuation time Less than 33 ft. (10 m) More than 10 minutes More than 33 ft. (10 m) More than 15 minutes 12-6. In Case Refrigerant is Leaking CAUTION Never attempt to charge additional refrigerant when refrigerant has been leaking from the unit. Follow the procedure described below to locate points of leaks and carry out repairs, [...]

12-7. Charging Additional Refrigerant 12-7-1. When Tubes are Extended Observe the proper amount of refrigerant as stated in this service manual or the installation manual that came with the indoor unit. Charge additional refrigerant in liquid state only. 12-8. Retro-Fitting Existing Systems 12-8-1. Use of Existing Units Never use new refrigerant R4[...]

INSTRUCTION MANUAL KS1872 + C1872 + CL1872 KS2472 + C2472 + CL2472 (OI-852-6-4180-800-00-0) APPENDIX 64[...]

2 F eatures This air conditioner is an in v er ter type unit th at automatica lly adjusts capacity as appro pr iate. Details on these functions are prov ided below; ref er to these descriptions when using the air conditioner . • Micr oprocessor Contr olled Operation The interior compartment of the remote cont rol unit contains sev eral f eatures [...]

3 Contents P age F eat ures ..................... ............. ................. ................ ............. ................ ............ 2 Product In f or ma tion .... ................. ............. ................ ................ ............. ............ 3 Aler t Symbols .... ............. ................ ................ .............[...]

4 Installation Location • W e recommend that this air condit ioner be installed properl y by qualified installat ion technicians in ac cordance with the Installation Instructions pro vided wi th the unit. • Bef ore installat ion, check that the v oltage of the e lectr ic supply in your home or office is the same as the v oltage sho wn on the na[...]

5 Names of P ar ts This illustration is based on the e x ter nal view of a standard model. Consequently , the shape ma y differ from that of the air condition er which you hav e selected. This air conditioner consists of an indoor unit and an outd oor unit. Y ou can control the air conditioner with th e remot e control unit. Air Intake Air from the[...]

6 Unit Displa y and Operation Button REMO TE CONTROL receiver This section pic ks up infr ared signals from the remote control unit (transmitter). OPERA TION button When the remote co ntrol cannot be used, pressing this b utton enab les cooling operati on. Each time this button is pressed, th e operation mode chan ges cyclically . OPERA T ION lamp [...]

7 Remote Contr ol Unit (Display) (1) Operat ion mode MILD DR Y .......................... .... COOL .............. ................ ....... F AN .............. ................ .......... (2) F an speed A utoma tic operation ..... .......... HIGH ....... ................. ............. MEDIUM... ................. ............. LOW .................[...]

8 Remote Contr ol Unit The illustration abov e pictures the remote control unit after the cov er has been opened. Tr a n s m i t t e r When you pr ess the buttons on the remote control unit, the mark appears in the displa y to transmit th e setting changes to the receiv er in the air conditioner . Sensor A temperature sensor ins ide the rem ote con[...]

9 Remote Contr ol Unit (continued) T emperature setting b uttons (TEMP .) Press the but ton to increase the set temper ature. Press the button to reduce th e set tempe rature. The tempera ture setting changes b y 1 °C or 2 °F each time one of the TEMP . butt ons is pressed. QUIET butt on : When y ou press this butt on, the f an rotates slower tha[...]

10 Remote Contr ol Unit (continued) Using the Remote Control Unit SENSOR button When y ou press this b utton (use a small-tipped object such as a ballpoint pen), the mark will appear at the display . And the room temp erature is detected b y the sensor wh ich is built into the indoor unit and the air conditioner is co ntrolled accordingly . If the [...]

11 Using the Remote Cont ro l Unit (continued) How to Use the Remote Control Un it When using the remote control unit, alwa ys point the un it’ s transmitter head directly at the air condit ioner’ s receiv er . Remote Control Unit Installation Position The remote contro l unit may be oper ated either from a non-fix ed position or from a wall- m[...]

12 Oper ation with the Remote Control Unit 1. Operation Check th at the circuit break er on the pow er panel is tur ned on. Press the setting b uttons as described below and change the settings as desired. STEP 1 Press the MODE selector b utton and select the de sired mode. F or de humidifyin g operation → F or coo ling operation → F or fan onl[...]

13 Operation with the Remote Contr ol Unit (continued) • Choose the best position in the r oom for th e remote control unit, which also acts as the sensor f or room comf or t and transmits t he operating instructions . Once yo u’ve f ound this best position, alw ays k eep the remote control unit there . • This appliance has a b uilt-in 5-minu[...]

14 Operation with the Remote Contr ol Unit (continued) 4. Night Setbac k Mode Night Setbac k Mode is used f or saving ener gy . Press the NIGHT SETBA CK button while operation. The mark appears in the displa y . T o release the night setback functio n, press the NIGHT SETBACK button again. In Cooling and DR Y Mode: ( and ) When the night setbac k m[...]

15 Operation with the Remote Contr ol Unit (continued) 5. QUIET Mode QUIET Mode is used to re duce the f an sound of the indoor unit . Press the QUIET b utton. The mark appears in the displa y . T o cancel, press QUIET button again. • In QUIE T Mode, the f an rotates at a slo wer speed than the f an speed se tting. • If the unit is alre ady ope[...]

16 Special Remar ks How it w orks? • Once the room te mperature reaches the le vel that w as set, the unit’ s operatio n frequency is changed auto matically . • Durin g DR Y operation, the f an speed autom atically r uns at lower speed for providin g a comfortable breez e. • ‘ ‘DR Y’ ’ operation is not possible if the indoor temper [...]

17 Setting the Timer In the descriptions belo w , the f ollowing settings a re used f or the temper ature and time indicator select or button on t he bottom front section of th e remote control. • T empe rature: °F • Time: AM, PM 1. How to set the p resent time (Example) T o se t to 10:30 pm. 2. How to set the OFF tim e (Example) T o stop the [...]

18 Setting the Timer (continued) 3. How to set the ON time (Example) T o start operation at 7:10 am. 4. How to set D AIL Y ON/OFF REPEA T timer (Example) T o star t operation at 7:10 a m. and stop the air conditio ner at 11:00 am. T o cancel a timer pr ogram • P ress the CANCEL bu tton. • When eithe r an ON or OFF time r is to be c anceled, pre[...]

19 Using the 1-Hour OFF Timer Tips f or Energ y Sa ving 1. 1-Hour OFF Timer This funct ion causes the unit to operate f or one hour and then stop, regard less of whether the unit is on or off when this b utton is pressed. The indicator in the displa y indicates that this function is ope rating. Setting pr ocedure: Regardless of whether t he unit is[...]

20 Adjusting the Airflo w Direction 1. Horizontal The hor izontal air flow can be adjusted b y movi ng the vertical vanes with y our hands to the left or right. When the humidity is high, the vertical va nes should be in the front position during the cooling or dehumidifying operation. If the vertical vanes are positioned all of the way to the righ[...]

21 Oper ation without the Remote Control Unit Care and Cleaning INDOOR UNIT If y ou hav e lost the remo te control un it or it has troub le, f ollow the steps below . When the air conditi oner is not running Each time the OPERA TI ON button is pressed, the op eration mode changes cyclically . The temper ature is set to the room tempe rature minus 4[...]

22 Care and Cleaning (continued) Anti-Mold Filter The anti-mold filter behind the air intake grille should be ch ec ked and cleaned at least once e very two weeks . How to remove the anti-mold filter 1. Grasp both ends of the air intake grille, and remo ve it by opening to wards the fro nt and pulling tow ards you. 2. Remov e the anti-mold filt er [...]

23 Care and Cleaning (continued) Air Clean Filt er The air clean filter remo v es dust and dirt from the air , and reduces odor s and smoke from tobacco. This air clean filter cannot remove harmfu l gases or vapor s nor ventilate air in the room. Y ou must open doors or windows frequently when you use gas or oil heating appliance s. Otherwise there[...]

24 T roub leshooting If your air conditioner does not work pr oper ly , first check the f ollowing points bef ore requesting ser vice. If it still does no t work properly , contact y our dealer or service center . Oper ating Range The air conditioner is oper able with in the temperature r anges as listed below: F or Cooling Only Mode ls : C1872, C2[...]

For P ar ts Ser vice Contact SANY O Fisher Ser vice Company A Division of SANY O Nor th America Cor poration 1165 Allgood Road, Suite 22, Marietta, GA 30062 U.S .A. Sany o Canada Inc. 1-300 Applewood Crescent, Concord, Ontario L4K 5C7, CANAD A Jan./2006 (T)[...]