Sanyo CH1852, CH0952, KHS1852-S User Manual

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TECHNICAL & SERVICE MANUAL

KHS0951 / CH0951 KHS1251 / CH1251

FILE NO.

KHS1852 / CH1852

SPLIT SYSTEM AIR CONDITIONER

Indoor Model No. Product Code No.

KHS0951 1 852 069 13 KHS1251 1 852 069 14

KHS1852-S 1 852 069 15

Indoor Unit Outdoor Unit

Destination: U.S.A.

Outdoor Model No. Product Code No.

CH0951 1 852 069 16 CH1251 1 852 069 17 CH1852 1 852 069 18

KHS0951 KHS1251

KHS1852

CH0951 CH0952

CH1852

REFERENCE NO. SM700447

IMPORTANT!

WARNING

CAUTION

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.

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.

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.

SPECIAL PRECAUTIONS

When Wiring

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 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

• 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.

Table of Contents

Page

1. OPERATING RANGE................................................................................................................ 1

2. SPECIFICATIONS

2-1. Unit Specifications............................................................................................................ 2

2-2. Major Component Specifications...................................................................................... 5

2-3. Other Component Specifications...................................................................................... 11

3. DIMENSIONAL DATA

3-1. Unit................................................................................................................................... 14

4. REFRIGERANT FLOW DIAGRAM

4-1. Refrigerant Flow Diagram................................................................................................. 18

5. PERFORMANCE DATA

5-1. Performance Charts......................................................................................................... 19

5-2. Air Throw Distance Charts ............................................................................................... 22

5-3. Cooling Capacity .............................................................................................................. 25

5-4. Heating Capacity.............................................................................................................. 29

6. ELECTRICAL DATA

6-1. Electrical Characteristics..................................................................................................30

6-2. Electric Wiring Diagrams.................................................................................................. 33

7. INSTALLATION INSTRUCTIONS

7-1. Installation Site Selection .................................................................................................42

7-2. Remote Control Unit Installation Position......................................................................... 44

7-3. Address Switches............................................................................................................. 45

7-4. Recommended Wire Length and Diameter...................................................................... 46

8. FUNCTION

8-1. Room Temperature Control .............................................................................................. 47

8-2. Dry Operation (Dehumidification)..................................................................................... 49

8-3. Automatic Switching between Cooling and Heating......................................................... 49

8-4. Freeze Prevention (Cooling)............................................................................................. 50

8-5. Overload Prevention (Heating)......................................................................................... 50

8-6. Cold draft Prevention (Heating)........................................................................................ 51

8-7. Defrosting Operation (Heating)......................................................................................... 52

8-8. Low Temperature Cutff (Heating) ..................................................................................... 53

9. TROUBLESHOOTING

9-1. Check before and after troubleshooting............................................................................ 54

9-2. Air conditioner does not operate....................................................................................... 55

9-3. Some part of air conditioner does not operate. ................................................................ 59

9-4. Air conditioner operates, but abnormalities are observed................................................ 61

9-5. If a sensor is defective...................................................................................................... 63

10. CHECKING ELECTRICAL COMPONENTS

10-1. Measurement of Insulation Resistance ............................................................................ 64

10-2. Checking Continuity of Fuse on PCB Ass'y...................................................................... 65

10-3. Checking Motor Capacitor................................................................................................ 65

11. ARRANGEMENT OF ELECTRICAL COMPONENT................................................................. 66

APPENDIX

INSTRUCTION MANUAL

iii

1. OPERATING RANGE

Temperature Indoor Air Intake Temp. Outdoor Air Intake Temp.

Cooling

Heating

Maximum 95°F D.B. / 71°F W.B. 115°F D.B.

Minimum 67°F D.B. / 57°F W.B. 67°F D.B.

Maximum 80°F D.B. / 67°F W.B. 75°F D.B. / 65°F W.B.

Minimum — D.B. / — W.B. 17°F D.B. / 15°F W.B.

2. SPECIFICATIONS

2-1. Unit Specifications

(1) Indoor unit KHS0951

Outdoor unit CH0951

Cooling Heating

Voltage Rating 115V 60Hz Performance Cooling Heating

Capacity BTU/h 9,100 10,900

kW 2.67 3.19 Air circulation (High) ft3/min (m3/min) 270 (7.65) Moisture removal (High) Pints/h 2.0 —

Electrical Rating Cooling Heating

Available voltage range V 103 – 126 Running amperes A 8.5 8.4 Power input W 890 890 Power factor % 91 92 SEER (HSPF) BTU/W 11.0 (6.8) Compressor locked rotor amperes A 49 Heater element kW —

Features

Controls / Temperature control Microprocessor / I.C. thermostat Control unit Wireless remote control unit Timer ON / OFF 12 hours, 1-hour OFF Fan speeds Indoor / Outdoor 3 and Auto / 1 (Hi) Airflow direction (Indoor) Horizontal Manual

Vertical Auto Air filter Washable Compressor Rotary (Hermetic) Refrigerant / Amount charged at shipment lb. (kg) 2.65 (1.20) Refrigerant control Capillary tube Operation sound Indoor: Hi / Me / Lo dB-A 38 / 34 / 32

Outdoor: Hi dB-A 48 Refrigerant tubing connections Flare Max allowable tubing length at shipment ft. (m) 25 (7.5) Refrigerant tubing Narrow tube inch (mm) 1/4 (6.35)

diameter

Wide tube inch (mm) 3/8 (9.52)

Dimensions & Weight Indoor Unit Outdoor Unit

Unit dimensions Height inch (mm) 10-5/8 (270) 21-1/4 (540)

Width inch (mm) 31-11/16 (805) 31-1/2 (800)

Depth inch (mm) 6-31/32 (177) 11-13/32 (290) Package dimensions Height inch (mm) 9-13/16 (249) 23-31/32 (609)

Width inch (mm) 33-21/32 (855) 38-5/8 (981)

Depth inch (mm) 13-5/16 (338) 16-3/16 (411) Weight Net lb. (kg) 17.6 (8.0) 75.0 (34)

Shipping lb. (kg) 22.0 (10.0) 83.8 (38) Shipping volume cu.ft (m

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.

Heating: Indoor air temperature 70°F D.B.

Outdoor air temperature 47°F D.B. / 43°F W.B.

) 2.51 (0.071) 8.67 (0.246)

DATA SUBJECT TO CHANGE WITHOUT NOTICE.

(2) Indoor unit KHS1251

Outdoor unit CH1251

Cooling Heating

Voltage Rating 115V 60Hz Performance Cooling Heating

Capacity BTU/h 11,700 12,500

kW 3.43 3.66 Air circulation (High) ft3/min (m3/min) 330 (9.35) Moisture removal (High) Pints/h 3.4 —

Electrical Rating Cooling Heating

Available voltage range V 103 – 126 Running amperes A 10.5 10.3 Power input W 1,200 1,170 Power factor % 99 99 SEER (HSPF) BTU/W 10.2 (6.8) Compressor locked rotor amperes A 60 Heater element kW —

Features

Vertical Auto Air filter Washable Compressor Rotary (Hermetic) Refrigerant / Amount charged at shipment lb. (kg) 2.76 (1.25) Refrigerant control Capillary tube Operation sound Indoor: Hi / Me / Lo dB-A 41 / 38 / 34

Outdoor: Hi dB-A 48 Refrigerant tubing connections Flare Max allowable tubing length at shipment ft. (m) 25 (7.5) Refrigerant tubing Narrow tube inch (mm) 1/4 (6.35)

diameter

Wide tube inch (mm) 1/2 (12.7)

Dimensions & Weight Indoor Unit Outdoor Unit

Unit dimensions Height inch (mm) 10-5/8 (270) 21-1/4 (540)

Width inch (mm) 31-11/16 (805) 31-1/2 (800)

Depth inch (mm) 6-31/32 (177) 11-13/32 (290) Package dimensions Height inch (mm) 9-13/16 (249) 23-31/32 (609)

Width inch (mm) 33-21/32 (855) 38-5/8 (981)

Depth inch (mm) 13-5/16 (338) 16-3/16 (411) Weight Net lb. (kg) 17.6 (8.0) 83.8 (38)

Shipping lb. (kg) 22.0 (10.0) 92.6 (42)

Shipping volume cu.ft (m

) 2.51 (0.071) 8.67 (0.246)

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.

Heating: Indoor air temperature 70°F D.B.

Outdoor air temperature 47°F D.B. / 43°F W.B.

(3) Indoor unit KHS1852

Outdoor unit CH1852

Cooling Heating

Voltage Rating 230 / 208V 60Hz Performance Cooling Heating

Capacity BTU/h 17,000 / 16,500 19,000 / 18,500

kW 4.98 / 4.84 5.75 / 5.42 Air circulation (High) ft3/min (m3/min) 390 (11.1) Moisture removal (High) Pints/h 4.5 / 4.3 —

Electrical Rating Cooling Heating

Available voltage range V 187 – 253 Running amperes A 7.6 / 8.1 7.1 / 7.5 Power input W 1,700 / 1,660 1,610 / 1,540 Power factor % 99 99 SEER (HSPF) BTU/W 10.5 (6.8) Compressor locked rotor amperes A 43 Heater element kW —

Features

Vertical Auto Air filter Washable Compressor Rotary (Hermetic) Refrigerant / Amount charged at shipment lb. (kg) 3.97 (1.80) Refrigerant control Capillary tube Operation sound Indoor: Hi / Me / Lo dB-A 41 / 38 / 36

Outdoor: Hi dB-A 52 Refrigerant tubing connections Flare Max allowable tubing length at shipment ft. (m) 25 (7.5) Refrigerant tubing Narrow tube inch (mm) 1/4 (6.35)

diameter

Wide tube inch (mm) 5/8 (15.88)

Dimensions & Weight Indoor Unit Outdoor Unit

Unit dimensions Height inch (mm) 11-7/32 (285) 24-19/32 (625)

Width inch (mm) 39-3/16 (995) 34-21/32 (880)

Depth inch (mm) 7-23/32 (196) 12-19/32 (320) Package dimensions Height inch (mm) 10-7/8 (276) 27-15/16 (710)

Width inch (mm) 42-1/8 (1,070) 40-9/16 (1,030)

Depth inch (mm) 14-9/32 (363) 16-3/16 (411) Weight Net lb. (kg) 26.5 (12.0) 108 (49)

Shipping lb. (kg) 33 (15.0) 117 (53)

Shipping volume cu.ft (m

) 3.78 (0.107) 10.6 (0.301)

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.

Heating: Indoor air temperature 70°F D.B.

Outdoor air temperature 47°F D.B. / 43°F W.B.

2-2. Major Component Specifications

2-2-1. Indoor Unit

(1) Indoor unit KHS0951

Control PCB

Part No. POW-KHS095A, POW-KHS095B Controls Microprocessor Control circuit fuse AC 115V – 3A

Remote Control Unit RCS-1HS2U

Fan & Fan Motor

Type Cross-flow Q’ty … Dia. and length inch (mm) 1 … ø 3-3/4 / L24-9/32 (ø 95 / L617) Fan motor model … Q’ty KFV4-21H1PA … 1P Nominal output W 20 Coil resistance (ambient temp. 68°F (20°C)) Ω BLU – BRN: 100.9

BLU – PNK: 127.5

Run capacitor µF 3.5

VAC 180

Flap Motor

Type Stepping motor Model MP24GA1 Rating DC12V Coil resistance (ambient temp. 77°F (25°C)) Ω WHT – BLU (respectively 4 wires): 380 ± 7%

Heat Exchanger Coil

Coil Aluminum plate fin / Copper tube Rows 2 Fin pitch inch (mm) 1/16 (1.4) Face area ft

2(m2

) 1.40 (0.130)

DATA SUBJECT TO CHANGE WITHOUT NOTICE.

(2) Indoor unit KHS1251

Control PCB

Part No. POW-KHS125A / POW-KHS095B Controls Microprocessor Control circuit fuse AC 115V – 3A

Remote Control Unit RCS-1HS2U

Fan & Fan Motor

BLU – PNK: 127.5

Run capacitor µF 3.5

VAC 180

Flap Motor

Type Stepping motor Model MP24GA1 Rating DC12V Coil resistance (ambient temp. 77°F (25°C)) Ω WHT – BLU (respectively 4 wires): 380 ± 7%

Heat Exchanger Coil

Coil Aluminum plate fin / Copper tube Rows 2 Fin pitch inch (mm) 1/16 (1.4) Face area ft

2(m2

) 1.40 (0.130)

DATA SUBJECT TO CHANGE WITHOUT NOTICE.

(3) Indoor unit KHS1852

Control PCB

Part No. POW-KHS1852 Controls Microprocessor Control circuit fuse AC 208 / 230V – 3A

Remote Control Unit RCS-1HS2U

Fan & Fan Motor

Type Cross-flow Q’ty … Dia. and length inch (mm) 1 … ø 3-15/32 / L29-3/8 (ø88 / L746) Fan motor model … Q’ty UF4-31D6P-S … 1P Nominal output W 30 Coil resistance (ambient temp. 68°F (20°C)) Ω WHT – BRN: 204.2

WHT – PNK: 158.3

Run capacitor µF 2.0

VAC 440

Flap Motor

Type Stepping motor Model MP24GA2 Rating DC12V Coil resistance (ambient temp. 77°F (25°C)) Ω Each terminals (1–2, 1–3, 1–4, 1–5) : 400 ±7%

Heat Exchanger Coil

Coil Aluminum plate fin / Copper tube Rows 2 Fin pitch inch (mm) 1/16 (1.3) Face area ft

2(m2

) 1.68 (0.156)

DATA SUBJECT TO CHANGE WITHOUT NOTICE.

2-2-2. Outdoor Unit

(1) Outdoor unit CH0951

Control PCB

Part No. POW-CH095 Controls — Control circuit fuse —

Compressor

Type Rotary (Hermetic) Compressor model C-1R75H2R Nominal output W 750 Compressor oil … Amount cc SUNISO 4GSD-T … 350 Coil resistance (ambient temp. 68°F (20°C)) Ω C – R: 0.841

Safety devices Type External (OLR)

Run capacitor µF 40

Crank case heater 115V, 20W

Fan & Fan Motor

Type Propeller Q’ty … Dia. and length inch. (mm) 1 … 16-17/32 (ø 420) Fan motor model … Q’ty UE6-21BA1PA … 1 No. of poles … rpm (115V, High) 6 … 630 Nominal output W 20 Coil resistance (ambient temp. 68°F (20°C)) Ω BLU – BRN: 45.3

Run capacitor µF 8

C – S: 2.831

Overload relay MRA99111-9200

VAC 400

BLU – PNK: 50.5

VAC 220

Heat Exchanger Coil

Coil Aluminum plate fin / Copper tube Rows 2 Fin pitch inch (mm) 1/16 (1.4) Face area ft

External Finish Acrylic baked-on enamel finish

2(m2

) 3.37 (0.313)

DATA SUBJECT TO CHANGE WITHOUT NOTICE.

(2) Outdoor unit CH1251

Control PCB

Part No. POW-CH095 Controls — Control circuit fuse —

Compressor

Type Rotary (Hermetic) Compressor model C-R95H2E Nominal output W 950 Compressor oil … Amount cc SUNISO 4GSD-T … 570 Coil resistance (ambient temp. 68°F (20°C)) Ω C – R: 0.576

Safety devices Type External (OLR)

Run capacitor µF 40

Crank case heater 115V, 20W

Fan & Fan Motor

Run capacitor µF 8

C – S: 3.070

Overload relay MRA98693-9200

VAC 400

BLU – PNK: 50.5

VAC 220

Heat Exchanger Coil

Coil Aluminum plate fin / Copper tube Rows 2 Fin pitch inch (mm) 1/16 (1.4)

2(m2

Face area ft

) 3.37 (0.313)

External Finish Acrylic baked-on enamel finish

DATA SUBJECT TO CHANGE WITHOUT NOTICE.

(3) Outdoor unit CH1852

Control PCB

Part No. POW-CH095 Controls — Control circuit fuse —

Compressor

Type Rotary (Hermetic) Compressor model C-R132H6D Nominal output W 1,300 Compressor oil … Amount cc SUNISO 4GSD-T … 500 Coil resistance (ambient temp. 68°F (20°C)) Ω C – R: 1.442

Safety devices Type External (OLR)

Run capacitor µF 35

Crank case heater 230V, 20W

Fan & Fan Motor

Type Propeller Q’ty … Dia. and length inch. (mm) 1 … 16-17/32 (ø 420) Fan motor model … Q’ty KFG6-51E6PA … 1 No. of poles … rpm (230V, High) 6 … 830 Nominal output W 50 Coil resistance (ambient temp. 68°F (20°C)) Ω WHT – BRN: 102

Run capacitor µF 2

C – S: 2.430

Overload relay MRA99117-9200

VAC 400

PNK – WHT: 199

VAC 440

Heat Exchanger Coil

Coil Aluminum plate fin / Copper tube Rows 2 Fin pitch inch (mm) 1/16 (1.6)

2(m2

Face area ft

) 5.13 (0.477)

External Finish Acrylic baked-on enamel finish

DATA SUBJECT TO CHANGE WITHOUT NOTICE.

2-3. Other Component Specifications

2-3-1. Indoor Unit

(1) Indoor unit KHS0951

Transformer ATR-T4

Rating Primary AC 115V, 60Hz

Secondary 19V, 0.5A

Thermistor (Coil sensor) DTN-TKS131B

Resistance kΩ 32°F (0°C) 15 ± 2%

Thermistor (Room sensor in lamp Ass’y) DTN-TKS134B

Resistance kΩ 77°F (25°C) 5 ± 3%

DATA SUBJECT TO CHANGE WITHOUT NOTICE.

(2) Indoor unit KHS1251

Transformer ATR-T4

Rating Primary AC 115V, 60Hz

Secondary 19V, 0.5A

Thermistor (Coil sensor) DTN-TKS131B

Resistance kΩ 32°F (0°C) 15 ± 2%

Thermistor (Room sensor in lamp Ass’y) DTN-TKS134B

Resistance kΩ 77°F (25°C) 5 ± 3%

DATA SUBJECT TO CHANGE WITHOUT NOTICE.

(3) Indoor unit KHS1852

Transformer ATR-T5

Rating Primary AC 230V, 60Hz

Secondary 19V, 0.5A

Thermistor (Coil sensor) DTN-TKS131B

Resistance kΩ 32°F (0°C) 15 ± 2%

Thermistor (Room sensor) DTN-TKS142B

Resistance kΩ 77°F (25°C) 5 ± 3%

DATA SUBJECT TO CHANGE WITHOUT NOTICE.

2-3-2. Outdoor Unit

4-way Valve (Solenoid coil) LB69001 (Coil), V26-9201 (Valve)

Coil rating AC 120V, 6W

Thermostat (Low temp. cutoff 23A) TRS02-M13MSR436

Operating temp. °F (°C) OFF (OPEN) : 5°F (–15°C)

ON (CLOSE) : 17°F (–8.3°C)

Thermostat (Defrost thermo. 23D) TRS02-12MSR

Operating temp. °F (°C) ON 54 ± 4°F (12 ± 2°C)

Diff. 14 deg (8 deg). below

Power Relay (PR) DFU24D1-F

Coil rating DC 24V Coil resistance Ω at 68°F (20°C) 650 ± 10% Contact rating AC 250V, 20A

PTC Thermistor PS2A E20-470

Resistance Ω at 77°F (25°C) 47 ± 25%

4-way Valve (Solenoid coil) LB69001 (Coil), VH79102 (Valve)

Coil rating AC 120V, 6W

Thermostat (Low temp. cutoff 23A) TRS02-M13MSR436

Operating temp. °F (°C) OFF (OPEN) : 5°F (–15°C)

ON (CLOSE) : 17°F (–8.3°C)

Thermostat (Defrost thermo. 23D) TRS02-12MSR

Operating temp. °F (°C) ON 54 ± 4°F (12 ± 2°C)

Diff. 14 deg (8 deg). below

Power Relay (PR) DFU24D1-F

Coil rating DC 24V Coil resistance Ω at 68°F (20°C) 650 ± 10% Contact rating AC 250V, 20A

PTC Thermistor PS2A E20-470

Resistance Ω at 77°F (25°C) 47 ± 25%

(1) Outdoor Unit CH0951

(2) Outdoor Unit CH1251

DATA SUBJECT TO CHANGE WITHOUT NOTICE

4-way Valve (Solenoid coil) LB69005 (Coil), V26-9201 (Valve)

Coil rating AC 208-230V, 6W

Thermostat (Low temp. cutoff 23A) TRS02-M13MSR436

Operating temp. °F (°C) OFF (OPEN) : 5°F (–15°C)

ON (CLOSE) : 17°F (–8.3°C)

Thermostat (Defrost thermo. 23D) TRS02-12MSR

Operating temp. °F (°C) ON 54 ± 4°F (12 ± 2°C)

Diff. 14 deg (8 deg). below

Power Relay (PR) DFU24D1-F

Coil rating DC 24V Coil resistance Ω at 68°F (20°C) 650 ± 10% Contact rating AC 250V, 20A

(3) Outdoor Unit CH1852

DATA SUBJECT TO CHANGE WITHOUT NOTICE

31-11/16 (805)

10-5/8 (270)

6-31/32 (177)

3-29/32

(99.5)

2-5/16

(58.5)

1-5/8 (41.0)

Drain hose ø23/32 (18)

Narrow tube ø1/4 (6.35)

Wide tube*

Center of tubing hole (2 places)

Unit: inch (mm)

6-7/32

(172.5)

Remote control unit

2-2/5

(61)

25/32 (18.5)

KHS0951 KHS1251

ø3/8 (9.52) ø1/2 (12.7)

3. DIMENSIONAL DATA

3-1. Unit

3-1-1. Indoor Unit

(1) Indoor unit KHS0951 / KHS1251

(2) Indoor unit KHS1852

11-7/32 (285)

1-25/32 (45)

39-3/16 (995)

(147.5) 5-13/16

7-23/32 (196) 1/8 (3)

Unit : inch (mm)

1-25/32 (45)

6-7/32

(172.5)

Remote control unit

2-2/5

(61)

25/32 (18.5)

Drain hose ø18

Narrow tube ø6.35 (1/4")

Wide tube ø15.88 (5/8")

Center of tubing hole (2 places)

Air discharge

Air intake

5/8"

21-1/4"

12-7/16"

11-13/32"

23-15/16"

31-2/1"

3-25/32"

2-ø15/32"

3-7/16" 2-5/32"

Narrow tube service valve

Wide tube service valve*

11-13/32"

ø6.35 (1/4")

15/32"

Unit: inch (mm)

CH0951 CH1251

ø3/8 (9.52) ø1/2 (12.7)

3-1-2. Outdoor Unit

(1) Outdoor unit CH0951 / CH1251

(2) Outdoor unit CH1852

Air discharge

Air intake

5/8"

21-19/32"

13-5/32"

12-7/32"

23-15/16"

34-21/32"

5-11/32"

4-ø15/32"

3-7/16" 2-5/32"

Narrow tube service valve

Wide tube service valve

ø6.35 (1/4")

ø15.88 (5/8")

15/32"

12-19/32"

Unit: inch (mm)

4. REFRIGERANT FLOW DIAGRAM

Compressor

4-way valve

Accumulator

Wide tube

service

valve

Wide tube

O.D. 3/8" (ø9.52 mm) 1/2" (ø12.7 mm)

Narrow

tube

service

valve

Narrow tube

Heat exchanger

Muffler

Capillary tube

Strainer

Cooling cycle

Heating cycle

Indoor unit Outdoor unit

O.D. 1/4" (øø6.35 mm)

Capillary tube

Check valve

Compressor

4-way valve

Accumulator

Wide tube service valve

Wide tube

O.D. 5/8" (ø15.88 mm)

Narrow tube service valve

Narrow tube

Heat exchanger

Muffler

Capillary tube

Strainer

Cooling cycle

Heating cycle

Indoor unit Outdoor unit

O.D. 1/4" (øø6.35 mm)

Capillary tube

Check valve

Heat exchanger

Receiver tank

4-1. Refrigerant Flow Diagram

Indoor unit KHS0951 / KHS1251 Outdoor unit CH0951 / CH1251

Indoor unit KHS1852 Outdoor unit CH1852

5. PERFORMANCE DATA

■ Cooling Characteristics

115 V

Indoor inlet air

D.B. temp. ¡F (¡C)

13 12 11 10

9 8 7 6

(21.1)80(26.7)90(32.2)

100

(37.8)

110

(43.3)

120

(48.9)

Outdoor inlet air D.B. temp. ¡F (¡C)

Operating current (A)

115 V

Indoor inlet air

D.B. temp. ¡F (¡C)

13 12 11 10

9 8 7 6

(–6.6)30(–1.1)40(4.4)50(10.0)60(15.6)70(21.1)80(26.7)

Outdoor inlet air D.B. temp. ¡F (¡C)

Operating current (A)

Outdoor inlet air D.B. temp. ¡F (¡C)

(10.5)

(9.8)

(9.1)

(8.4)

(7.7)

(7.0)

(6.3)

(5.6)

(4.9)

(4.2)

(3.5)

Indoor inlet air

D.B. temp. ¡F (¡C)

115 V

150 140 130 120 110 100

90 80 70 60 50

Low pressure psig (kg/cm

at wide tube serveice valve

115 V

Outdoor inlet air D.B. temp. ¡F (¡C)

(10.5)

(23.9)

(22.5)

(21.1)

(19.7)

(18.3)

(16.9)

(15.5)

(14.1)

(12.7)

(11.2)

150

340 320 300 280 260 240 220 200 180 160

High pressure psig (kg/cm

at wide tube serveice valve

■ Heating Characteristics

(–12.2)

(15.6)

(–6.6)30(–1.1)40(4.4)50(10.0)60(15.6)70(21.1)80(26.7)

(–12.2)

(21.1)80(26.7)90(32.2)

100

(37.8)

110

(43.3)

120

(48.9)

(15.6)

Indoor inlet air

D.B. temp. ¡F (¡C)

95 (35.0) 80 (26.7) 67 (19.4)

95 (35.0)

80 (26.7) 67 (19.4)

80 (26.7) 70 (21.1) 59 (15.0)

NOTE

5-1. Performance Charts

Indoor Unit KHS0951 Outdoor Unit CH0951

Overload prevention operates to protect the air conditioner when the outdoor ambient temperature reaches an abnormally high level while in heating mode. (Refer to 8-5. Overload prevention)

● ...... Points of Rating condition

Cooling: Indoor air temperature 80°F D.B. / 67°F W.B. Heating: Indoor air temperature 70F° D.B.

Black dots in above charts indicate the following rating conditions.

Outdoor air temperature 95°F D.B. Outdoor air temperature 47°F D.B. / 43°F W.B.

■ Cooling Characteristics

115 V

Indoor inlet air

D.B. temp. ¡F (¡C)

14 13 12 11 10

9 8 7

(21.1)80(26.7)90(32.2)

100

(37.8)

110

(43.3)

120

(48.9)

Outdoor inlet air D.B. temp. ¡F (¡C)

Operating current (A)

115 V

Indoor inlet air

D.B. temp. ¡F (¡C)

14 13 12 11 10

9 8 7

(–6.6)30(–1.1)40(4.4)50(10.0)60(15.6)70(21.1)80(26.7)

Outdoor inlet air D.B. temp. ¡F (¡C)

Operating current (A)

Outdoor inlet air D.B. temp. ¡F (¡C)

(10.5)

(9.8)

(9.1)

(8.4)

(7.7)

(7.0)

(6.3)

(5.6)

(4.9)

(4.2)

(3.5)

Indoor inlet air

D.B. temp. ¡F (¡C)

115 V

150 140 130 120 110 100

90 80 70 60 50

Low pressure psig (kg/cm

at wide tube serveice valve

115 V

Outdoor inlet air D.B. temp. ¡F (¡C)

High pressure psig (kg/cm

at wide tube serveice valve

■ Heating Characteristics

(–12.2)

(15.6)

(–6.6)30(–1.1)40(4.4)50(10.0)60(15.6)70(21.1)80(26.7)

(–12.2)

(21.1)80(26.7)90(32.2)

100

(37.8)

110

(43.3)

120

(48.9)

(15.6)

Indoor inlet air

D.B. temp. ¡F (¡C)

95 (35.0) 80 (26.7) 67 (19.4)

95 (35.0) 80 (26.7)

67 (19.4)

80 (26.7) 70 (21.1) 59 (15.0)

(10.5)

(23.9)

(22.5)

(21.1)

(19.7)

(18.3)

(16.9)

(15.5)

(14.1)

(12.7)

(11.2)

150

340 320 300 280 260 240 220 200 180 160

NOTE

Indoor Unit KHS1251 Outdoor Unit CH1251

Overload prevention operates to protect the air conditioner when the outdoor ambient temperature reaches an abnormally high level while in heating mode. (Refer to 8-5. Overload prevention)

● ...... Points of Rating condition

Cooling: Indoor air temperature 80°F D.B. / 67°F W.B. Heating: Indoor air temperature 70F° D.B.

Black dots in above charts indicate the following rating conditions.

Outdoor air temperature 95°F D.B. Outdoor air temperature 47°F D.B. / 43°F W.B.

■ Cooling Characteristics

230 V

Indoor inlet air

D.B. temp. ¡F (¡C)

12 11 10

9 8 7 6 5

(21.1)80(26.7)90(32.2)

100

(37.8)

110

(43.3)

120

(48.9)

Outdoor inlet air D.B. temp. ¡F (¡C)

Operating current (A)

230 V

Indoor inlet air

D.B. temp. ¡F (¡C)

12 11 10

9 8 7 6 5

(–6.6)30(–1.1)40(4.4)50(10.0)60(15.6)70(21.1)80(26.7)

Outdoor inlet air D.B. temp. ¡F (¡C)

Operating current (A)

Outdoor inlet air D.B. temp. ¡F (¡C)

(10.5)

(9.8)

(9.1)

(8.4)

(7.7)

(7.0)

(6.3)

(5.6)

(4.9)

(4.2)

(3.5)

Indoor inlet air

D.B. temp. ¡F (¡C)

230/208 V

150 140 130 120 110 100

90 80 70 60 50

Low pressure psig (kg/cm

at wide tube serveice valve

230/208 V

Outdoor inlet air D.B. temp. ¡F (¡C)

High pressure psig (kg/cm

at wide tube serveice valve

■ Heating Characteristics

(–12.2)

(15.6)

(–6.6)30(–1.1)40(4.4)50(10.0)60(15.6)70(21.1)80(26.7)

(–12.2)

(21.1)80(26.7)90(32.2)

100

(37.8)

110

(43.3)

120

(48.9)

(15.6)

Indoor inlet air

D.B. temp. ¡F (¡C)

95 (35.0) 80 (26.7) 67 (19.4)

80 (26.7)

70 (21.1)

59 (15.0)

80 (26.7) 70 (21.1)

59 (15.0)

95 (35.0) 80 (26.7) 67 (19.4)

(10.5)

(23.9)

(22.5)

(21.1)

(19.7)

(18.3)

(16.9)

(15.5)

(14.1)

(12.7)

(11.2)

150

340 320 300 280 260 240 220 200 180 160

NOTE

Indoor Unit KHS1852 Outdoor Unit CH1852

Overload prevention operates to protect the air conditioner when the outdoor ambient temperature reaches an abnormally high level while in heating mode. (Refer to 8-5. Overload prevention)

● ...... Points of Rating condition

Cooling: Indoor air temperature 80°F D.B. / 67°F W.B. Heating: Indoor air temperature 70F° D.B.

Black dots in above charts indicate the following rating conditions.

Outdoor air temperature 95°F D.B. Outdoor air temperature 47°F D.B. / 43°F W.B.

5-2. Air Throw Distance Chart

Horizontal distance (ft.)

Axis air velocity (ft./sec.)

Vertical distance (ft.)

Room air temp. : 70¡F (21.1¡C) Fan speed : High

Heating

Horizontal distance (ft.)

Axis air velocity (ft./sec.)

Vertical distance (ft.)

Room air temp. : 80¡F (26.7¡C) Fan speed : High

Cooling

0 5 10 15 20 25 30

: Flap angle 0° , : Axis air velocity 0° : Flap angle 30°, : Axis air velocity 30°

0 5 10 15 20 25 30

: Flap angle 45° , : Axis air velocity 45° : Flap angle 60° , : Axis air velocity 60°

(1) Indoor Unit KHS0951

Horizontal distance (ft.)

Axis air velocity (ft./sec.)

Vertical distance (ft.)

Room air temp. : 70¡F (21.1¡C) Fan speed : High

Heating

Horizontal distance (ft.)

Axis air velocity (ft./sec.)

Vertical distance (ft.)

Room air temp. : 80¡F (26.7¡C) Fan speed : High

Cooling

0 5 10 15 20 25 30

: Flap angle 0° , : Axis air velocity 0° : Flap angle 30°, : Axis air velocity 30°

0 5 10 15 20 25 30

: Flap angle 45° , : Axis air velocity 45° : Flap angle 60° , : Axis air velocity 60°

(2) Indoor Unit KHS1251

Horizontal distance (ft.)

Axis air velocity (ft./sec.)

Vertical distance (ft.)

Room air temp. : 70¡F (21.1¡C) Fan speed : High

Heating

Horizontal distance (ft.)

Axis air velocity (ft./sec.)

Vertical distance (ft.)

Room air temp. : 80¡F (26.7¡C) Fan speed : High

Cooling

0 5 10 15 20 25 30

: Flap angle 0° , : Axis air velocity 0° : Flap angle 30°, : Axis air velocity 30°

0 5 10 15 20 25 30

: Flap angle 45° , : Axis air velocity 45° : Flap angle 60° , : Axis air velocity 60°

(3) Indoor Unit KH1852

5-3. Cooling Capacity

RATING CAPACITY : 9,100 BTU/h AIR FLOW RATE: 27 0 CFM

EVAPORATOR CONDENSER

ENT.TEMP.°F (°C) AMBIENT TEMP °F (°C)

WB DB 75 85 95 105 115

(23.9) (29.4) (35.0) (40.6) (46.1)

TC 9,220 8,770 8,260 7,690 7,050

CI 0.64 0.7 0.76 0.82 0.9

72(22.2) SHC 6,720 6,490 6,240 5,960 5,650

59 76(24.4) SHC 7,580 7,350 7,090 6,820 6,510

(15.0) 80(26.7) SHC 8,470 8,240 7,990 7,690 7,050

84(28.9) SHC 9,220 8,770 8,260 7,690 7,050 88(28.9) SHC 9,220 8,770 8,260 7,690 7,050

TC 9,560 9,140 8,680 8,160 7,600

CI 0.65 0.71 0.77 0.84 0.92

72(22.2) SHC 5,670 5,470 5,260 5,020 4,780

63 76(24.4) SHC 6,520 6,330 6,120 5,880 5,630

(17.2) 80(26.7) SHC 7,420 7,220 7,010 6,780 6,530

84(28.9) SHC 8,270 8,080 7,870 7,630 7,380 88(28.9) SHC 9,130 8,930 8,680 8,160 7,600

TC 9,930 9,540 # 9,100 8,620 8,090

CI 0.65 0.71 0.78 0.85 0.94

72(22.2) SHC 4,610 4,450 4,260 4,060 3,850

67 76(24.4) SHC 5,470 5,300 5,120 4,920 4,700

(19.4) 80(26.7) SHC 6,360 6,200 6,010 5,810 5,600

84(28.9) SHC 7,220 7,050 6,870 6,670 6,450 88(28.9) SHC 8,080 7,910 7,720 7,520 7,310

TC 10,460 10,090 9,700 9,270 8,800

CI 0.66 0.72 0.79 0.87 0.96

72(22.2) SHC 3,560 3,420 3,270 3,100 2,930

71 76(24.4) SHC 4,420 4,270 4,120 3,960 3,790

(21.7) 80(26.7) SHC 5,310 5,170 5,020 4,860 4,680

84(28.9) SHC 6,170 6,030 5,880 5,710 5,540 88(28.9) SHC 7,030 6,880 6,730 6,570 6,390

TC 10,670 10,320 9,960 9,540 9,090

CI 0.67 0.73 0.8 0.89 0.99

75 76(24.4) SHC 3,280 3,160 3,040 2,890 2,740

(23.9) 80(26.7) SHC 4,180 4,060 3,930 3,790 3,640

84(28.9) SHC 5,030 4,910 4,790 4,640 4,490 88(28.9) SHC 5,890 5,770 5,640 5,500 5,350

TC :Total Cooling Capacity (BTU/h) SHC:Sensible Heat Capacity (BTU/h)

CI :Compressor Input (kW

Rating conditions are

:Outdoor Ambient Temp.95°FDB :Indoor Unit Entering Air Temp.80°FDB/67°FWB

Indoor Unit KHS0951 Outdoor Unit CH0951

115V Single phase 60 Hz

(kW)

Indoor Unit KHS1251

RATING CAPACITY : 11,700 BTU/h AIR FLOW RATE: 3 3 0 CF M

EVAPORATOR CONDENSER

ENT.TEMP.°F (°C) AMBIENT TEMP °F (°C)

WB DB 75 85 95 105 115

(23.9) (29.4) (35.0) (40.6) (46.1)

TC 11,850 11,280 10,620 9,890 9,070

CI 0.89 0.98 1.06 1.15 1.26

72(22.2) SHC 8,440 8,140 7,800 7,430 7,030

59 76(24.4) SHC 9,450 9,150 8,810 8,440 8,040

(15.0) 80(26.7) SHC 10,500 10,200 9,860 9,490 9,070

84(28.9) SHC 11,510 11,210 10,620 9,890 9,070 88(28.9) SHC 11,850 11,280 10,620 9,890 9,070

TC 12,300 11,750 11,160 10,490 9,770

CI 0.9 0.99 1.08 1.17 1.29

72(22.2) SHC 7,180 6,920 6,640 6,320 6,000

63 76(24.4) SHC 8,190 7,920 7,640 7,330 7,000

(17.2) 80(26.7) SHC 9,240 8,980 8,700 8,380 8,060

84(28.9) SHC 10,250 9,980 9,700 9,390 9,060 88(28.9) SHC 11,260 10,990 10,710 10,400 9,770

TC 12,760 12,260 # 11,700 11,080 10,400

CI 0.91 1 1.09 1.19 1.32

72(22.2) SHC 5,910 5,690 5,450 5,180 4,900

67 76(24.4) SHC 6,920 6,700 6,450 6,190 5,900

(19.4) 80(26.7) SHC 7,970 7,750 7,500 7,240 6,960

84(28.9) SHC 8,980 8,760 8,510 8,250 7,960 88(28.9) SHC 9,980 9,760 9,520 9,250 8,970

TC 13,440 12,980 12,470 11,920 11,310

CI 0.92 1.01 1.11 1.22 1.35

72(22.2) SHC 4,660 4,470 4,270 4,050 3,820

71 76(24.4) SHC 5,660 5,480 5,280 5,060 4,830

(21.7) 80(26.7) SHC 6,720 6,530 6,330 6,110 5,880

84(28.9) SHC 7,720 7,540 7,330 7,120 6,890 88(28.9) SHC 8,730 8,540 8,340 8,130 7,890

TC 13,710 13,270 12,800 12,260 11,690

CI 0.94 1.02 1.12 1.25 1.38

75 76(24.4) SHC 4,290 4,130 3,960 3,770 3,580

(23.9) 80(26.7) SHC 5,340 5,180 5,020 4,830 4,630

84(28.9) SHC 6,350 6,190 6,020 5,830 5,640 88(28.9) SHC 7,360 7,200 7,030 6,840 6,640

TC :Total Cooling Capacity (BTU/h) SHC:Sensible Heat Capacity (BTU/h)

CI :Compressor Input (kW

Rating conditions are

:Outdoor Ambient Temp.95°FDB :Indoor Unit Entering Air Temp.80°FDB/67°FWB

Outdoor Unit CH1251

115 V Single phase 60 Hz

(kW)

Indoor Unit KHS1852

RATING CAPACITY : 17,000 BTU/h AIR FLOW RATE: 3 9 0 CF M

EVAPORATOR CONDENSER

ENT.TEMP.°F (°C) AMBIENT TEMP °F (°C)

WB DB 75 85 95 105 115

(23.9) (29.4) (35.0) (40.6) (46.1)

TC 17,220 16,390 15,440 14,370 13,180

CI 1.26 1.38 1.5 1.62 1.79

72(22.2) SHC 11,770 11,290 10,750 10,170 9,540

59 76(24.4) SHC 12,960 12,480 11,950 11,360 10,730

(15.0) 80(26.7) SHC 14,210 13,730 13,200 12,610 11,980

84(28.9) SHC 15,410 14,920 14,390 13,800 13,170 88(28.9) SHC 16,600 16,120 15,440 14,370 13,180

TC 17,870 17,070 16,220 15,250 14,200

CI 1.28 1.4 1.52 1.66 1.82

72(22.2) SHC 10,190 9,770 9,320 8,830 8,320

63 76(24.4) SHC 11,380 10,960 10,520 10,030 9,510

(17.2) 80(26.7) SHC 12,630 12,210 11,770 11,270 10,760

84(28.9) SHC 13,830 13,400 12,960 12,470 11,950 88(28.9) SHC 15,020 14,590 14,150 13,660 13,150

TC 18,550 17,820 # 17,000 16,100 15,110

CI 1.29 1.41 1.54 1.68 1.86

72(22.2) SHC 8,600 8,240 7,850 7,430 6,990

67 76(24.4) SHC 9,790 9,440 9,050 8,630 8,180

(19.4) 80(26.7) SHC 11,040 10,680 10,290 9,880 9,430

84(28.9) SHC 12,230 11,880 11,490 11,070 10,620 88(28.9) SHC 13,430 13,070 12,680 12,260 11,810

TC 19,530 18,850 18,120 17,320 16,440

CI 1.3 1.42 1.56 1.72 1.9

72(22.2) SHC 7,040 6,740 6,420 6,080 5,710

71 76(24.4) SHC 8,240 7,930 7,620 7,280 6,910

(21.7) 80(26.7) SHC 9,480 9,180 8,860 8,520 8,160

84(28.9) SHC 10,680 10,380 10,060 9,720 9,350 88(28.9) SHC 11,870 11,570 11,250 10,910 10,540

TC 19,920 19,280 18,600 17,820 16,980

CI 1.32 1.45 1.59 1.76 1.95

75 76(24.4) SHC 6,480 6,220 5,960 5,660 5,340

(23.9) 80(26.7) SHC 7,720 7,470 7,200 6,900 6,590

84(28.9) SHC 8,920 8,660 8,400 8,100 7,780 88(28.9) SHC 10,110 9,860 9,590 9,290 8,980

TC :Total Cooling Capacity (BTU/h) SHC:Sensible Heat Capacity (BTU/h)

CI :Compressor Input (kW

Rating conditions are

:Outdoor Ambient Temp.95°FDB :Indoor Unit Entering Air Temp.80°FDB/67°FWB

Outdoor Unit CH1852

208 V Single phase 60 Hz

(kW)

Indoor Unit KHS1852

RATING CAPACITY : 17,000 BTU/h AIR FLOW RATE: 3 9 0 CF M

EVAPORATOR CONDENSER

ENT.TEMP.°F (°C) AMBIENT TEMP °F (°C)

WB DB 75 85 95 105 115

(23.9) (29.4) (35.0) (40.6) (46.1)

TC 17,220 16,390 15,440 14,370 13,180

CI 1.26 1.38 1.5 1.62 1.79

72(22.2) SHC 11,770 11,290 10,750 10,170 9,540

59 76(24.4) SHC 12,960 12,480 11,950 11,360 10,730

(15.0) 80(26.7) SHC 14,210 13,730 13,200 12,610 11,980

84(28.9) SHC 15,410 14,920 14,390 13,800 13,170 88(28.9) SHC 16,600 16,120 15,440 14,370 13,180

TC 17,870 17,070 16,220 15,250 14,200

CI 1.28 1.4 1.52 1.66 1.82

72(22.2) SHC 10,190 9,770 9,320 8,830 8,320

63 76(24.4) SHC 11,380 10,960 10,520 10,030 9,510

(17.2) 80(26.7) SHC 12,630 12,210 11,770 11,270 10,760

84(28.9) SHC 13,830 13,400 12,960 12,470 11,950 88(28.9) SHC 15,020 14,590 14,150 13,660 13,150

TC 18,550 17,820 # 17,000 16,100 15,110

CI 1.29 1.41 1.54 1.68 1.86

72(22.2) SHC 8,600 8,240 7,850 7,430 6,990

67 76(24.4) SHC 9,790 9,440 9,050 8,630 8,180

(19.4) 80(26.7) SHC 11,040 10,680 10,290 9,880 9,430

84(28.9) SHC 12,230 11,880 11,490 11,070 10,620 88(28.9) SHC 13,430 13,070 12,680 12,260 11,810

TC 19,530 18,850 18,120 17,320 16,440

CI 1.3 1.42 1.56 1.72 1.9

72(22.2) SHC 7,040 6,740 6,420 6,080 5,710

71 76(24.4) SHC 8,240 7,930 7,620 7,280 6,910

(21.7) 80(26.7) SHC 9,480 9,180 8,860 8,520 8,160

84(28.9) SHC 10,680 10,380 10,060 9,720 9,350 88(28.9) SHC 11,870 11,570 11,250 10,910 10,540

TC 19,920 19,280 18,600 17,820 16,980

CI 1.32 1.45 1.59 1.76 1.95

75 76(24.4) SHC 6,480 6,220 5,960 5,660 5,340

(23.9) 80(26.7) SHC 7,720 7,470 7,200 6,900 6,590

84(28.9) SHC 8,920 8,660 8,400 8,100 7,780 88(28.9) SHC 10,110 9,860 9,590 9,290 8,980

TC :Total Cooling Capacity (BTU/h) SHC:Sensible Heat Capacity (BTU/h)

CI :Compressor Input (kW

Rating conditions are

:Outdoor Ambient Temp.95°FDB :Indoor Unit Entering Air Temp.80°FDB/67°FWB

Outdoor Unit CH1852

230 V Single phase 60 Hz

(kW)

Outdoor temperature (¡F DB)

100

110

120

Heating capacity ratio (%)

47 50 6040302017

5-4. Heating Capacity

NOTE

Indoor unit KHS0951 / KHS1251 / KHS1852 Outdoor unit CH0951 / CH1251 / CH1852

1)●… Point of rating condition

2) Above characteristics indicate instantaneous operation, which does not take into account defrost

3) Fan speed: High

4) Because this air conditioner heats a room by drawing in the heat of the outside air (heat pump system),

Black dot in the chart indicates the following rating condition.

Indoor: 70°F (21.1°C) D.B. Outdoor: 47°F (8.3°C) D.B. / 43°F (6.1°C) W.B.

operation.

the heating efficiency will fall off when the outdoor temperature is very low. If sufficient heat cannot be obtained with this air conditioner, use another heating appliance in conjunction with it.

6. ELECTRICAL DATA

COOLING

Indoor Unit Outdoor Unit Complete Unit

Fan Motor Fan Motor Compressor

Performance at 115V Single phase 60Hz Rating Conditions Running Amps. A 0.40 0.70 7.4 8.5

Power Input kW 0.034 0.081 0.775 0.89

Full Load Conditions Running Amps. A 0.40 0.70 9.1 10.2

Power Input kW 0.034 0.081 0.985 1.10

Rating Conditions : Indoor Air Temperature 80°F (26.7°C) D.B. / 67°F (19.4°C) W.B.

Outdoor Air Temperature 95°F (35°C) D.B.

Full Load Conditions : Indoor Air Temperature 95°F (35°C) D.B. / 70°F (21.2°C) W.B.

Outdoor Air Temperature 115°F (46.1°C) D.B.

HEATING

Indoor Unit Outdoor Unit Complete Unit

Fan Motor Fan Motor Compressor

Performance at 115V Single phase 60Hz Rating Conditions Running Amps. A 0.40 0.70 7.3 8.4

Power Input kW 0.034 0.081 0.775 0.89

Full Load Conditions Running Amps. A 0.40 0.70 8.6 9.7

Power Input kW 0.034 0.081 0.935 1.05

Rating Conditions : Indoor Air Temperature 70°F (21.1°C) D.B.

Outdoor Air Temperature 47°F (8.3°C) D.B. / 43°F (6.1°C) W.B.

Full Load Conditions : Indoor Air Temperature 80°F (26.7°C) D.B.

Outdoor Air Temperature 75°F (23.9°C) D.B. / 65°F (18.3°C) W.B.

6-1. Electrical Characteristics

Indoor Unit KHS0951 Outdoor Unit CH0951

COOLING

Indoor Unit Outdoor Unit Complete Unit

Fan Motor Fan Motor Compressor

Performance at 115V Single phase 60Hz Rating Conditions Running Amps. A 0.40 0.70 9.4 10.5

Power Input kW 0.034 0.081 1.085 1.20

Full Load Conditions Running Amps. A 0.40 0.70 11.8 12.9

Power Input kW 0.034 0.081 1.365 1.48

Rating Conditions : Indoor Air Temperature 80°F (26.7°C) D.B. / 67°F (19.4°C) W.B.

Outdoor Air Temperature 95°F (35°C) D.B.

Full Load Conditions : Indoor Air Temperature 95°F (35°C) D.B. / 70°F (21.2°C) W.B.

Outdoor Air Temperature 115°F (46.1°C) D.B.

HEATING

Indoor Unit Outdoor Unit Complete Unit

Fan Motor Fan Motor Compressor

Performance at 115V Single phase 60Hz Rating Conditions Running Amps. A 0.40 0.70 9.2 10.3

Power Input kW 0.034 0.081 1.055 1.17

Full Load Conditions Running Amps. A 0.40 0.70 10.9 12.0

Power Input kW 0.034 0.081 1.255 1.37

Rating Conditions : Indoor Air Temperature 70°F (21.1°C) D.B.

Outdoor Air Temperature 47°F (8.3°C) D.B. / 43°F (6.1°C) W.B.

Full Load Conditions : Indoor Air Temperature 80°F (26.7°C) D.B.

Outdoor Air Temperature 75°F (23.9°C) D.B. / 65°F (18.3°C) W.B.

Indoor Unit KHS1251 Outdoor Unit CH1251

COOLING

Indoor Unit Outdoor Unit Complete Unit

Fan Motor Fan Motor Compressor Performance at 230 / 208V Single phase 60Hz Rating Conditions Running Amps. A 0.25 / 0.23 0.49 / 0.46 6.86 / 7.41 7.6 / 8.1

Power Input kW 0.047 / 0.045 0.113 / 0.095 1.54 / 1.52 1.70 / 1.66

Full Load Conditions Running Amps. A 0.25 / 0.23 0.49 / 0.46 8.8 / 9.7 9.5 / 10.4

Power Input kW 0.047 / 0.045 0.113 / 0.095 1.98 / 1.98 2.14 / 2.12

Rating Conditions : Indoor Air Temperature 80°F (26.7°C) D.B. / 67°F (19.4°C) W.B.

Outdoor Air Temperature 95°F (35°C) D.B.

Full Load Conditions : Indoor Air Temperature 95°F (35°C) D.B. / 70°F (21.2°C) W.B.

Outdoor Air Temperature 115°F (46.1°C) D.B.

HEATING

Indoor Unit Outdoor Unit Complete Unit

Fan Motor Fan Motor Compressor Performance at 230 / 208V Single phase 60Hz Rating Conditions Running Amps. A 0.25 / 0.23 0.49 / 0.46 6.36 / 6.81 7.1 / 7.5

Power Input kW 0.047 / 0.045 0.113 / 0.095 1.45 / 1.40 1.61 / 1.54

Full Load Conditions Running Amps. A 0.25 / 0.23 0.49 / 0.46 8.6 / 9.4 9.3 / 10.1

Power Input kW 0.047 / 0.045 0.113 / 0.095 1.94 / 1.92 2.10 / 2.06

Rating Conditions : Indoor Air Temperature 70°F (21.1°C) D.B.

Outdoor Air Temperature 47°F (8.3°C) D.B. / 43°F (6.1°C) W.B.

Full Load Conditions : Indoor Air Temperature 80°F (26.7°C) D.B.

Outdoor Air Temperature 75°F (23.9°C) D.B. / 65°F (18.3°C) W.B.

Indoor Unit KHS1852 Outdoor Unit CH1852

6-2. Electric Wiring Diagrams

WARNING

To avoid electrical shock hazard, be sure to disconnect power before checking, servicing and/or cleaning any electrical parts.

(1) Indoor unit KHS0951 / KHS1251

(2) Indoor unit KHS1852

WARNING

To avoid electrical shock hazard, be sure to disconnect power before checking, servicing and/or cleaning any electrical parts.

(3) Outdoor unit CH0951 / CH1251

WARNING

To avoid electrical shock hazard, be sure to disconnect power before checking, servicing and/or cleaning any electrical parts.

(4) Outdoor unit CH1852

WARNING

To avoid electrical shock hazard, be sure to disconnect power before checking, servicing and/or cleaning any electrical parts.

(5) Printed circuit board POW-KHS095A (for KHS0951)

Top view Bottom view

(6) Printed circuit board POW-KHS125A (for KHS1251)

Top view Bottom view

(7) Printed circuit board POW-KHS095B (for KHS0951 and KHS1251)

Top view Bottom view

(8) Printed circuit board POW-KHS1852 (for KHS1852)

Top view Bottom view

(9) Printed circuit board POW-CH095 (for CH0951, CH1251 and CH1852)

Top view

7. INSTALLATION INSTRUCTIONS

WARNING

Drain hose

Indoor unit

Outside drainage

*6" (15 cm) min.

Front View

2" (5 cm) min.

*6" (15 cm) min.

*KS1852 only

2" (5 cm) min.

*6" (15 cm) min.

2" (5 cm) min.

INDOOR UNIT

Tubing length (L)

OUTDOOR UNIT

Elevation difference (H)

Indoor unit

Floor level

Wall

Minimum height

from floor level

5 ft. (1.5 m)

CAUTION

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.

AVOID:

●

direct sunlight.

●

nearby heat sources that may affect performance of the unit.

●

areas where leakage of flammable gas may be expected.

●

places where large amounts of oil mist exist.

Fig. 1

DO:

●

select an appropriate position from which every cor-

KHS1852 only

Fig. 2

ner of the room can be uniformly cooled. (High on a wall is best.)

●

select a location that will hold the weight of the unit.

●

select a location where tubing and drain hose have the shortest run to the outside. (Fig. 1)

●

allow room for operation and maintenance as well as unrestricted air flow around the unit. (Fig. 2)

●

install the unit within the maximum elevation differ-

Fig. 3a

ence (H) above the outdoor unit and within a total tubing length (L) from the outdoor unit as detailed in Table 1 and Fig. 3a.

For stable operation of the air conditioner, do not install wall-mounted type indoor units under 5 ft. (1.5 m) from floor level.

Fig. 3b

Table 1

Max. Allowable Tubing Limit of Tubing Limit of Elevation Required Amount of

Length at Shipment Length (L) Difference (H) Additional Refrigerant Model

(ft.) (ft.) (ft.) (oz./ft.)

25 50 23 a) 0.16 9,000 BTU 25 65 23 b) 0.27 12,000/18,000 BTU

If total tubing length becomes a) 25 to 50 ft. (max.), b) 25 to 65 ft. (max.) charge additional refrigerant (R22) by a) 0.16 oz./ft., b) 0.27 oz./ft. No additional compressor oil is necessary.

7-1-2. Outdoor Unit

Outdoor unit

Hot air

Heat source

Exhaust fan

Air intake Min. 6" (15 cm)

Air discharge

Min. 6" (15 cm)

Min. 12" (30 cm)

Valve side Min. 10" (25 cm)

Min.

7 ft.

(2 m)

Min.

7 ft.

(2 m)

Min. 6 in. (15 cm) Air intake

Ground

Obstacle

Obstacle above

Air discharge

CAUTION

Air intake

Concrete or equal

About 4" (10 cm)

Min. 4" (10 cm)

Anchor bolts (4 pcs)

About 16" (40 cm)

AVOID:

●

heat sources, exhaust fans, etc. (Fig. 4)

●

damp, humid or uneven locations.

DO:

●

choose a place as cool as possible.

●

choose a place that is well ventilated.

●

allow enough room around the unit for air intake/ exhaust and possible maintenance. (Fig. 5a)

●

Install the outdoor unit above snowfall line.

●

Do not place objects on or sit on the outdoor unit. Also, never block the air intake/outlet or exhaust. Distortion of the outdoor unit or incomplete combustion may result.

●

Do not introduce foreign matter into the air intake/outlet or exhaust. Do not poke them with such objects as a stick.

Fig. 4

Fig. 5a

●

provide a solid base (level concrete pad, concrete block, 4 in. ´16 in. (10 ´40 cm) beams or equal), a minimum of 4 in. (10 cm) above ground level to reduce humidity and protect the unit against possible water damage and decreased service life (Fig. 5b).

●

use lug bolts or equal to bolt down unit, reducing vibration and noise.

Fig. 5b

7-2. Remote Control Unit Installation

Wall

Screw (Packed in indoor unit)

Wall

Special mounting screw (Packed in indoor unit)

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 ft. (8 m) away from the air conditioner

●

In the path of the air conditioner’s airstream

●

Where it may become extremely hot or cold

●

Where it may be subject to electrical or magnetic interference

7-2-1. Mounting on a Wall

a) Removable mounting

1) Momentarily hold the remote control unit at the desired mounting position.

2) Confirm that the air conditioner responds correctly when you press keys on the remote control from that position.

Removable mounting

3) After confirming correct operation, use a screwdriver to screw the supplied special mounting screw into the wall. (Fig. 6)

4) Hang the remote control unit from the mounting screw.

b) Non-removable mounting

1) Momentarily hold the remote control unit at the desired mounting position.

2) Confirm that the air conditioner responds correctly when you press keys on the remote control from that position.

3) After confirming correct operation, use a screwdriver to screw the mounting screw into the wall. (Fig. 6)

4) Remove the remote control cover by sliding it downward.

5) Remove the batteries of the remote control unit.

6) Use a screwdriver to screw the remote control unit securing screw into the wall through the hole in the battery compartment. (Fig. 7)

Fig. 6

Non-removable mounting

Fig. 7

7) Replace the batteries.

8) Again confirm that the remote control unit operates correctly.

7-3. Address Switches

JP11

NOTE

If you are installing more than 1 indoor unit (up to 2) in the same room, it is necessary for you to assign each unit its own address so each can be operated by its own remote control unit. You assign the addresses by matching the switch positions of each indoor unit with the switch positions of its remote control unit. The switches of the remote control unit are shown in Fig. 8.

For instance, to set up 2 indoor units, switch Unit A’s address switches. Then switch Unit B’s address switches.

It is important that you match the switches of the air conditioner unit with the switches of its remote control unit.

7-3-1. Finding the Address Switches

Address

Remote Control Unit

Remove the lid and unit’s 2 batteries. You can see the switches inside the battery compartment. (Fig. 8)

WARNING

Be sure to turn the air conditioner off and disconnect the power before opening the unit.

Risk of Electric Shock

7-3-2. Switch Positions for Up to 2 Units

Indoor Unit

Remove the casing, then follow the steps below. a) Unscrew the cover plate of the electrical component

box. Remove the PCB. Locate and cut the jumper

wire. (Figs. 9 and 10) b) Table 2 shows the positions you can use for up to 2

indoor units installed in the same room. (Figs. 8, 9

and 10)

Address switch is in “A” position at time of shipment.

Fig. 8

KHS0951, KHS1251

Fig. 9

KHS1852

Fig. 10

Table 2

Unit No.

1 A Do not cut 2 B Cut

Remote Control

Address

Indoor Unit

Jumper Wire

JP11

An indoor unit cannot be remote controlled if its remote control unit is too far away (more than 26 ft.). If the remote control unit does not seem to work correctly, bring it closer to the unit being operated and try again. For this reason, if the remote control unit is to be used from a fixed position, operation should be checked at that position before mounting.

7-4. Recommended Wire Length

NOTE

INDOOR UNIT

Terminal

Disconnect switch (Field supply)

1 2 3 4 5 6

1 2 3 4 5 6 7 8

Grounding line

(Inter-unit) Power lines

(Inter-unit) Control lines

Terminal

OUTDOOR UNIT

Power supply line

Single-phase, 115V

60Hz

L1 L2

INDOOR UNIT

Terminal

Disconnect switch (Field supply)

1 2 3 4 5 6

1 2 3 4 5 6 7 8

Grounding line

(Inter-unit) Power lines

(Inter-unit) Control lines

Terminal

OUTDOOR UNIT

Power supply line

Single-phase, 230/208V

60Hz

L1 L2

CAUTION

WARNING

and Diameter

Regulations on wiring diameter differ from locality to locality. For field wiring requirements, please refer to your local electrical codes. Carefully observe these regulations when carrying out the installation.

Refer to the wiring system diagram (Fig. 11) Refer to your local codes or in the absence of local

codes with the National Electric Code: ANSI/NFPA70.

●

Be sure to comply with local codes on running the wire from the outdoor unit to the indoor unit (size of wire and wiring method, etc.).

●

Each wire must be firmly connected.

●

No wire should be allowed to touch refrigerant tubing, the compressor, or any moving part.

WIRING SYSTEM DIAGRAM

CH0951, CH1251 Models

CH1852 Model

WARNING

●

To avoid the risk of electric shock, each air

conditioner unit must be grounded.

●

Be sure to connect the power supply line to the outdoor unit as shown in the wiring diagram. The indoor unit draws its power from the outdoor unit.

Fig. 11

8. FUNCTION

3 minutes 3 minutes 3 minutes 3 minutes 3 minutes 3 minutes 3 minutes

3 minutes5 minutes

ON OFF ON OFF ON OFFCompressor

ON OFF ON OFF ON OFF

More than 5 minutes

Outdoor fan

Indoor fan

Set speed

T + 2 ¡F

T ¡Fset temp.

Thermo. OFF

Thermo. ON

Thermo. OFF

Thermo. ON

Room temp.

Signal from remote control unit

8-1. Room Temperature Control

■

Cooling

●

Room temperature control is obtained by cycling the compressor ON and OFF under control of the room temperature sensor in the remote control unit.

●

The room temperature (and other information) is transmitted every 3 minutes by the remote control unit to the controller in the indoor unit.

●

The control circuit will not attempt to turn the compressor ON until the compressor has been OFF for at least 3 minutes. To protect the compressor from stalling out when trying to start against the high side refrigerant pressure, the control circuit has a built-in automatic time delay to allow the internal pressure to equalize.

●

As a protective measure, the control circuit switches the compressor OFF after 5 minutes or more of compressor operation.

●

Thermo. ON : When the room temperature is above T + 2°F (T°C is set temperature).

Compressor ➞ON

●

Thermo. OFF : When the room temperature is equal to or below set temperature T°F.

Compressor ➞OFF

■

NOTE

3 minutes 3 minutes 3 minutes 3 minutes 3 minutes 3 minutes

5 minutes 5 minutes

ON OFF ONOFFCompressor OFF

ON OFF ONOFFOutdoor fan OFF

Set speed

OFF

OFF OFF ON OFF ON

OFF

ON ( Reversing cycle )

Thermo.ONThermo.

OFF

Thermo. ON

Thermo. OFF

More than

5 minutes

Signal from remote control unit

T ¡F T – 2 ¡F T – 4 ¡F

set temp.

Indoor fan

Standby lamp

Indoor heat exch. coil temp.

95 ¡F 77 ¡F

Solenoid coil

(4– way valve)

Operation button

Room temp.

Set speed

30 seconds30 seconds

Heating

●

Room temperature control is obtained by cycling the compressor ON and OFF under control of the room temperature sensor in the remote control unit.

●

The room temperature (and other information) is transmitted every 3 minutes by the remote control unit to the controller in the indoor unit.

●

The control circuit will not attempt to turn the compressor ON until the compressor has been OFF for at least 5 minutes. To protect the compressor from stalling out when trying to start against the high side refrigerant pressure, the control circuit has a built-in automatic time delay to allow the internal pressure to equalize.

●

As a protective measure, the control circuit switches the compressor OFF after 5 minutes or more of compressor operation.

●

Thermo. ON : When the room temperature is below T – 2°F (T°C is set temperature).

●

Thermo. OFF : When the room temperature is equal to or above set temperature T°F.

Compressor ➞ON

Compressor ➞OFF

*1: Refer to "8-6 Cold Draft Prevention".

8-2. Dry Operation (Dehumidification)

NOTE

Room temp.

Cooling operation

T + 4 ¡F

Set temp. T ¡F

T – 2 ¡F

Monitor zone Both the indoor and outdoor units stop.

Room temp. 59 ¡F

✻Dry A zone

Compressor : FMI (indoor fan) :

Continuous operation L (low speed) / LL (very low speed) intermittent ventilation

only while the compressor is ON.

✻Dry B zone

Compressor : FMI (indoor fan) :

Intermittent operation (ON for 3 minutes and OFF for 9 minutes) L (low speed) / LL (very low speed) intermittent ventilation

only while the compressor is ON.

●

Dry operation uses the ability of the cooling cycle to remove moisture from the air, but by running at low level to dehumidify without greatly reducing the room temperature. The air conditioner repeats the cycle of turning ON and OFF automatically as shown in the chart below according to the room temperature.

● Intermittent ventilation occurs by switching the indoor fan speed between L ↔ LL.

● Dry operation does not occur when the room temperature is under 15°C, which is the monitor zone.

● When the compressor stops, the indoor fan stops as well.

8-3. Automatic Switching between Cooling and Heating

●

When AUTO mode is selected, the microprocessor calculates the difference between the set temperature and the room temperature, and automatically switches to COOLING or HEATING mode to maintain the desired temperature.

This means that if the room temperature is higher than or equal to the set temperature, COOLING operation begins. If the room temperature is lower than the set temperature, HEATING operation begins.

Room temp. ³ Set temp. ➞ COOL Room temp. < Set temp. ➞ HEAT

8-4. Freeze Prevention (Cooling)

ONON OFF

H or M or L H ➞ H, M ➞ M, L ➞ M

141 139

126 120

Indoor heat exch. coil temp. ¡F

Outdoor fan

Indoor fan

Compressor

ON ON ON ON

OFFOFF

Set speed

More than

10 minutes

6 minutes

T + 4 ¡F

Indoor heat exch. coil temp.

30 ¡F

Compressor

Indoor fan

Room temp.

Thermo. OFF

Thermo. ON

Set temp. T ¡F

More than

10 minutes

More than 6 minutes

Set speed

●

This function prevents freezing of the indoor heat exchange coil.

●

When the compressor has been running for 10 minutes or more and the temperature of the indoor heat exchange coil falls below 30°F, the control circuit stops the compressor for at least 6 minutes. The compressor does not start again until the temperature rises above 46°F or 6 minutes has elapsed.

8-5. Overload Prevention (Heating)

●

This function prevents overheating of the indoor heat exchange coil.

●

When the temperature of the indoor heat exchange coil rises above 139°F, and if the indoor fan is L (low speed), then the fan speed changes from L (low speed) to M (medium speed).

●

When the temperature of the indoor heat exchange coil rises above 141°F, the outdoor fan stops.

8-6. Cold draft Prevention (Heating)

OFF

Set speed

Indoor fan

Standby lamp

Indoor heat exch. coil temp. (¡F)

Max. 10minutes

●

This function controls indoor fan speed so a strong draft of cold air will not blow out before the indoor heat exchange coil have sufficiently warmed up.

●

STANDBY lamp on front of the indoor unit lights up when this function is working.

●

when 10 minutes has elapsed,the fan speed is automatically switched to set speed regardless of indoor heat exchange coil temperature.

8-7. Defrosting Operation (Heating)

Compressor ON

Indoor heat exchanger coil temperature drops 1.4¡F per 6 minutes and it repeats 3 times in succession.

Integrated operating time of compressor is more than 3 hours.

Defrosting begins.

Cold-draft prevention

Temperature of outdoor heat exchange coil is higher than 54¡F.

Release of defrosting

Indoor fan runs at set speed when temperature of indoor heat exchanger reads 95¡F.

Defrosting time is over 12 minutes.

Compressor keeps running for at least 6 minutes.

Temperature of outdoor heat exchanger coil is below 48¡F.

Integrated operating time of compressor is more than 1.5 hours.

Thermo. OFF. (Compressor OFF)

Temperature of indoor heat exchanger coil is below 113¡F.

Continuous operating time of compressor is more than 20 minutes.

Outdoor fan is either operated or stopped for more than 10 minutes.

Is outdoor fan continuously operating for more than 10 minutes?

Integrated operating time of compressor is more than 50 minutes.

Temperature of indoor heat exchanger coil is below 113 + 23¡F.

Temp. of indoor heat exch. coil immediately before thermo goes off is either below 113 + 7¡F or 136 + 7¡F (when overload prevention works).

YES

Overload prevention works. Does outdoor fan

stop?

Compressor keeps running for at least 6 minutes.

Release of overload prevention (Outdoor fan operates.)

Compressor keeps running for at least 6 minutes.

■ Defrosting Flowchart

■ Defrosting Mode Timing Chart

5¡F

17¡F

Outdoor air temp.

Compressor

and

Outdoor fan

Indoor fan

Standby lamp

OFF

ON ON

NOTE

ON ON ON

ONON

Set speed

OFF

32 seconds Max. 11 minutes 32 seconds

Start of defrosting

Release of defrosting

OFF

Release of

cold draft prevention

Compressor

Outdoor fan

Solenoid coil

(4–way valve)

Indoor fan

Standby lamp

Indoor heat exch. coil temp.

ONON

Set speed

* 1

2 seconds 2 seconds

95¡F 77¡F

*1: Refer to "8-6 Cold Draft Prevention".

8-8. Low Temperature Cutff (Heating)

●

This function protect the compressor from being damaged due to flow back of the liquid refrigerant to the compressor when the outdoor temperature is very low.

●

Low ambient operation during heating can cause the outdoor heat exchanger to become super–cooled which may result in liquid back–flow. To protect the compressor from this condition, both compressor and outdoor fan stop if the outdoor temperature drops around 5°F. However, the indoor fan continues to operate even after the compressor has stopped. Note that standby lamp does not lights up during this period.

9. TROUBLESHOOTING

1 2

4 5 6

1 2

3 4 5 6

Indoor

unit

Outdoor

unit

Inter–unit power wiring

Inter–unit control wiring

Power supply : Single- phase, 60Hz

115V.....CH0951,CH1251

230/208V............CH1852

Ground

L1 L2

WARNING

9-1. Check before and after troubleshooting

Hazardous voltage can cause ELECTRIC SHOCK or DEATH. Disconnect power or turn off circuit breaker before you start checking or servicing.

9-1-1. Check power supply wiring.

●

Check that power supply wires are correctly connected to terminals No. 7 (L1) and No. 8 (L2) on the terminal plate in the outdoor unit.

9-1-2. Check inter-unit wiring.

●

Check that inter-unit wiring is correctly connected to the indoor unit from the outdoor unit.

9-1-3. Check power supply.

●

Check that voltage is in specified range (±10% of the rating).

●

Check that power is being supplied.

9-1-4. Check lead wires and connectors in indoor and outdoor units.

●

Check that coating of lead wires is not damaged.

●

Check that lead wires and connectors are firmly connected.

●

Check that wiring is correct.

9-2. Air conditioner does not operate.

Measure insulation resistance of electrical parts in outdoor unit.

Set circuit breaker to OFF.

Measure insulation resistance of electrical parts in indoor unit.

Remove both power supply wires and inter-unit wires from terminal plate in outdoor unit.

Measure insulation resistance of outdoor unit.

•

Remove inter-unit wires from terminal plate in indoor unit.

Measure insulation resistance of indoor unit.

•

Insulation of outdoor unit is defective.

Insulation of indoor unit is defective.

WARNING

11 2872

44 55 66

Indoor

unit

Outdoor

unit

1 1

Inter–unit wiring

Power supply wiring

Circuit breaker

Power supply

Ground

L2 L1

9-2-1. Circuit breaker trips (or fuse blows).

A. When the circuit breaker is set to ON, it is tripped soon. (Resetting is not possible.)

●

There is a possibility of ground fault.

●

Check insulation resistance.

If resistance value is 2M½ or less, insulation is defective (“NO”).

B. Circuit breaker trips in several minutes after turning the air conditioner on.

YES

•

OPERATION selector switch is set in ON position.

Set OPERATION selector switch to ON.

Lamp Ass'y or indoor PCB Ass'y is defective.

•

Check power supply. Power is being supplied to the

outdoor unit.

Circuit breaker is tripped.

Power failure

Reset breaker.

Wait for recovery or contact power company.

Replace with suitable one (larger capacity).

•

Check capacity of circuit breaker. Capacity of circuit breaker is

suitable.

Measure resistance of outdoor fan motor winding.

Measure resistance of compressor motor winding.

•

Measure resistance of 4-way valve's winding.

In case of Heating operation :

●

There is a possibility of short circuit.

9-2-2. Neither indoor nor outdoor unit runs.

A. Power is not supplied.

B. Check "OPERATION selector" switch in the indoor unit.

C. Check remote control unit.

•

Timer is turned ON. Check to see if is displayed on remote control.

YES

Cancel the timer mode.

•

Check fuse on indoor PCB Ass'y for continuity. (F)

•

Check operation lamp to see if light is ON.

Light is OFF

•

Measure resistance of primary and secondary winding of transformer. (TR)

Indoor PCB Ass'y or switch Ass'y is defective.

•

Measure resistance of indoor and/or fan motor winding. (FM)

•

Measure resistance of compressor motor winding. (CM)

•

Measure coil resistance of power relay. (PR)

Replace the fuse.

If fuse has been blown,

•

Try to run with another remote control unit.

First remote control unit is defective.

•

Check for residue buildup on transmitter of remote control unit.

•

Check for residue buildup on remote control receiver on front of indoor unit.

Clean transmitter.

Clean receiver.

D. Check fuse on the indoor PCB Ass'y.

E. Check TIMER on the remote control unit.

9-2-3. Only outdoor unit does not run.

•

Indoor PCB Ass'y is defective.

•

Indoor PCB Ass'y is defective.

•

Check voltage between terminals No. 3(+) and No. 4 at terminal plate. (DC 24V)

No voltage appears.

•

Outdoor PCB Ass'y is defective.

Is room temperature too low ?

Try to lower setting temperature by temperature setting button ( button).

Outdoor unit still does not run.

Remote control unit is defective.

•

Try to run using another remote control unit.

COOL

Is room temperature too high ?

Try to raise setting temperature by temperature setting button ( button).

Outdoor unit still does not run.

•

Try to run using another remote control unit.

HEAT

Remote control unit is defective.

A. Check setting temperature.

B. Check PCB Ass'y in either indoor or outdoor unit.

9-2-4. Only indoor unit does not run.

9-3. Some part of air conditioner does not operate.

•

Measure resistance of flap motor winding.

Fan cannot be turned.

•

Check fan rotation. Turn fan gently once or twice by hand.

•

Check fan casing foreign matter on inside.

Fan motor burnout or foreign matter in bearings.

Remove foreign matter or repair.

Repair or replace.

•

Measure resistance of indoor fan motor winding.

•

Check fan motor capacitor.

9-3-1. Only indoor fan does not run.

9-3-2. Only flap motor does not run.

9-3-4. Only outdoor fan does not run.

•

Check compressor motor capacitor.

•

Measure resistance of PTC thermistor.

•

Measure resistance of compressor motor winding.

•

Measure resistance of power relay. (PR)

YES

Overload relay is working.

YES

Temperature of compressor is abnormally high.

Refrigerant gas shortage. Charge refrigerant gas (R22).

Rotor may be locked up.

•

Measure Power supply voltage. The voltage is too low.

Fan cannot be turned.

•

Check fan rotation. Turn fan gently once or twice by hand.

•

Check fan casing foreign matter on inside.

Fan motor burnout or foreign matter in bearings.

Remove foreign matter or repair.

Repair or replace.

•

Measure resistance of indoor fan motor winding.

•

Check fan motor capacitor.

9-3-5. Only compressor does not run.

9-4. Air conditioner operates, but abnormalities are observed.

•

Indoor PCB Ass'y is defective.

•

Check voltage between terminals No. 3(+) and No. 5 at terminal plate.

(DC 24V)

No voltage appears.

Outdoor PCB Ass'y is defective.

•

Remote control unit may be defective.

•

Measure resistance of 4–way valve's winding.

Receiver in lamp Ass'y may be defective.

COOL ➞ HEAT

•

Check voltage between terminals No. 3(+) and No. 5 at terminal plate.

(0V)

HEAT ➞ COOL

9-4-1. Operation does not switch from HEAT to COOL (or COOL to HEAT).

9-4-2. Poor cooling or heating.

•

Set temperature is suitable.

Set temperature to higher or lower value using temperature setting buttons of the remote control unit.

•

Remote control unit is placed where it can detect room temperature properly.

Change position of remote control unit.

Air filter is clogged.

YES

Temperature difference is small.

YES

Temperature difference between suction and discharge air is large enough (approx. 10 deg. or more).

Possibility of gas shortage.

YES

•

Check position of remote control unit. Cool or warm air from air conditioner reaches position directly.

•

Change position of remote control unit.

•

Wide and narrow tubes between indoor unit and outdoor unit are insulated.

Insulate both wide and narrow tubes separately and then tape together.

•

Measure temperature of suction and discharge air of air conditioner.

Charge refrigerant gas (R22).

Check for clogging of air filter.

•

Fan speed is set to LOW.

Clean filter.

Set fan speed to either HIGH or MEDIUM.

•

Review cooling load estimate, if performance of air conditioner is normal.

Reduce cooling or heating load or replace the air conditioner with larger capacity.

9-4-3. Excessive cooling or heating.

9-5. If a sensor is defective.

NOTE

Temperature sensor

Lead wires

Thermistor Structure

9-5-1. Indoor coil temp. thermistor (TH1) is defective.

A. Open

When thermistor opens, the air conditioner will be in the following conditions as the controller tries to detect extremely low indoor coil temperature.

In Cooling mode: Function of freeze prevention continues to work. That is, the controller turns both

compressor and outdoor fan motor periodically ON and OFF for several minutes. (Refer to "8-3. Freeze Prevention")

B. Short

When thermistor is short, the air conditioner will be in the following conditions as the controller tries to detect extremely high indoor coil temperature.

In Cooling mode: Function of freeze prevention will not work even when the frost builds up on indoor heat

exchanger coil

9-5-2. Room temp. thermistor (TH2) is defective.

A. Open

When thermistor opens, the air conditioner will be in the following conditions as the controller tries to detect extremely low room temperature. In Cooling mode: The air conditioner soon stops and will not start again. (Thermo.OFF) Neither outdoor

fan nor compressor runs.

B. Short

When thermistor is short, the air conditioner will be in the following conditions as the controller tries to detect extremely high room temperature. In Cooling mode: The air conditioner continues to operate (Thermo.ON). Both

the outdoor fan and compressor do not stop. As a result, the room becomes too cold.

Definition of Open or Short Circuit of Sensor (Thermistor)

Open ... A lead wire is broken or disconnected or the circuit inside the temperature sensor is open . Short ... The protective cover of a lead wire has been damaged, and the exposed wire is touching another metal

part, or both lead wires have become exposed and are touching each other. Alternatively, the circuit inside the temperature sensor is closed.

10.CHECKING ELECTRICAL COMPONENTS

NOTE

Insulation tester

Probe

Clip

Ground wire

Terminal plate

Copper tube or metallic part

Clip

Insulation tester

Probe

Copper tube or metallic part

Clip

Insulation tester

Probe

Clip

Insulation tester

Probe

Metallic part

From fan motor, compressor and other parts

10-1. Measurement of Insulation

Resistance

●

The insulation is in good condition if the resistance exceeds 2M½.

10-1-1.Power Supply Wires

Clamp the ground wire of the power supply wires with the lead clip of the insulation resistance tester and measure the resistance by placing a probe on either of the power wires. (Fig. 1)

Then measure the resistance between the ground wire and the other power wire. (Fig. 1)

10-1-2.Indoor Unit

Clamp an aluminum plate fin or copper tube with the lead clip of the insulation resistance tester and measure the resistance by placing a probe on each terminal screw on the terminal plate. (Fig. 2) Note that the ground line terminal should be skipped for the check.

Fig. 1

Fig. 2

10-1-3.Outdoor Unit

Clamp a metallic part of the unit with the lead clip of the insulation resistance tester and measure the resistance by placing a probe on each terminal screw where power supply lines are connected on the terminal plate. (Fig. 2)

10-1-4.Measurement of Insulation

Resistance for Electrical Parts

Disconnect the lead wires of the desired electric part from terminal plate, capacitor, etc. Similarly disconnect the connector. Then measure the insulation resistance. (Figs. 3 and 4)

Refer to Electric Wiring Diagram. If the probe cannot enter the poles because the hole is

too narrow then use a probe with a thinner pin.

Fig. 3

Fig. 4

10-2. Checking Continuity of Fuse

Fuse

PCB Ass’y

Fuse

Compressor motor capacitor

Fan motor capacitor

Multimeter

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.

10-3. Checking Motor Capacitor

Remove the lead wires from the capacitor terminals, and then place a probe on the capacitor terminals as shown in Fig. 7. Observe the deflection of the pointer, setting the resistance measuring range of the multimeter to the maximum value.

The capacitor is “good” if the pointer bounces to a great extent and then gradually returns to its original position.

Fig. 5

Fig. 6

The range of deflection and deflection time differ according to the capacity of the capacitor.

Fig. 7

11.ARRANGEMENT OF ELECTRICAL COMPONENT

165432

Fan motor capacitor

Coil temp. thermistor

Room temp. thermistor

Flap motor Lamp Ass'y

Terminal base

Controller (PCB Ass'y)

Transformer

SEC.

PRY.

165432

Coil temp. thermistor

Room temp. thermistor

Flap motor

Lamp Ass'y

Terminal base

Controller A

(PCB Ass'y A)

Controller B

(PCB Ass'y B)

Transformer

SEC.

PRY.

Indoor Unit KHS0951 / KHS1251

Indoor Unit KHS1852

12 34 6587

COM NC

TH UNIT

FM1

SUPPLY

20S

CONTROLLER

PTC Thermistor (Only for 115V models)

Compressor motor capacitor

Fan motor capacitor

Power relay

Terminal base

Controller (PCB Ass'y)

(L1)

(L2)

Solenoid coil (4-way valve)

Defrost thermostatFan Motor

Electric compornet box

Crankcase heater

Compressor motor

Thermostat (Low temp. cut-off)

● Electric Parts

● Parts Layout in Unit

Outdoor Unit CH0951 / CH1251 / CH1852

APPENDIX

KHS0951 + CH0951 KHS1251 + CH1251 KHS1852 + CH1852

INSTRUCTION MANUAL

Features

This air conditioner is equipped with cooling, heating and drying functions. Details on these functions are provided below; refer to these descriptions when using the air conditioner.

•

Microprocessor Controlled Operation

The interior compartment of the remote control unit contains several features to facilitate automatic operation, easy logically displayed for easy use.

•

Simple One-touch Wireless Remote Control

The remote control unit has several features to facilitate automatic operation.

•

12-Hour ON or OFF Timer

This timer can be set to automatically turn the unit on or off at any time within a 12 hour period.

•

1-Hour OFF Timer

This timer can be set to automatically turn off the unit at any time after one hour.

•

Night Setback

Pressing this button changes the setting of the room temperature thermostat, allowing you to set the temperature at whatever level that you find comfortable.

•

Automatic and 3-step Fan Speed

Auto/High/Medium/Low

•

Air Sweep Control

This function moves a flap up and down in the air outlet, directing air in a sweeping motion around the room and providing comfort in every corner.

•

Automatic Switching between Cooling and Heating

This unit automatically switches between cooling operation and heating operation according to the difference between the room temperature and the temperature setting.

•

Hot Start Heating System

Right from the start, the air is warm and comfortable. This system prevents any cold blasts at the beginning while the heat pump is warming up, or even defrosting.

•

Automatic Restart Function for Power Failure

Even when power failure occurs, preset programmed operation can be reactivated once power resumes.

•

Anti-Mold Filter

This unit is equipped with an anti-mold filter that inhibits the growth of mold and bacteria.

CAUTION

•

Optional Air Clean Filter

An air filter that uses activated charcoal to eliminate unpleasant odors and clean the air is available (sold separately).

If the outdoor temperture is extreamly low, it is recommended to use another heating appliance:

When the outdoor temperature falls to around 5°F, the compressor stops. However, indoor fan continues to operate even after the compressor has been stopped. In this case, to prevent room from freezing, use another heating appliance.

2 OI-330-04EG

Contents

Page

Features.................................................................................................................. 2

Product Information.............................................................................................. 3

Alert Symbols........................................................................................................ 3

Installation Location.............................................................................................. 4

Electrical Requirements........................................................................................ 4

Safety Instructions ................................................................................................ 4

Names of Parts ...................................................................................................... 5

Using the Remote Control Unit ......................................................................... 10

Operation with the Remote Control Unit......................................................... 12

1. Automatic Operation

2. Manual Operation ................................................................................. 14

3. Adjusting the Fan Speed...................................................................... 15

4. Night Setback Mode ............................................................................ 16

Special Remarks ................................................................................................. 18

Using the 12-Hour ON and OFF Timer ............................................................. 19

Using the 1-Hour OFF Timer.............................................................................. 20

Adjusting the Airflow Direction ......................................................................... 21

Operation without the Remote Control Unit ................................................... 22

Care and Cleaning................................................................................................22

Tips for Energy Saving ....................................................................................... 25

Troubleshooting................................................................................................... 26

Operating Range ................................................................................................. 26

............................................................................

Product Information

If you have problems or questions concerning your Air Conditioner, you will need the following information. Model and serial numbers are on the nameplate on the bottom of the cabinet.

Model No. Date of purchase

Dealer's address

Serial No.

Phone number

Alert Symbols

The following symbols used in this manual, alert you to potentially dangerous conditions to users, service personnel or the appliance:

This symbol refers to a hazard or unsafe practice which can result in severe personal injury or death.

CAUTION

This symbol refers to a hazard or unsafe practice which can result in personal injury or product or property damage.

3OI-330-03EG

Installation Location

•

We recommend that this air conditioner be installed properly by qualified installation technicians in accordance with the Installation Instructions provided with the unit.

•

Before installation, check that the voltage of the electric supply in your home or office is the same as the voltage shown on the nameplate.

•

Do not install this air conditioner where there are fumes or flammable gases, or in an extremely humid space such as a greenhouse.

•

Do not install the air conditioner where excessively high heatgenerating objects are placed.

Avoid: To protect the air conditioner from heavy corrosion, avoid installing the

outdoor unit where salty sea water can splash directly onto it or in sulphurous air near a spa.

Electrical Requirements

1. All wiring must conform to the local electrical codes. Consult your

dealer or a qualified electrician for details.

2. Each unit must be properly grounded with a ground (or earth) wire or

through the supply wiring.

3. Wiring must be done by a qualified electrician.

CAUTION

Safety Instructions

•

Read this Instruction Manual carefully before using this air conditioner. If you still have any difficulties or problems, consult your dealer for help.

•

This air conditioner is designed to give you comfortable room conditions. Use this only for its intended purpose as described in this Instruction Manual.

•

Never use or store gasoline or other flammable vapor or liquid near the air conditioner – it is very dangerous.

•

This air conditioner has no ventilator for intaking fresh air from outdoors. You must open doors or windows frequently when you use gas or oil heating appliances in the same room, which consume a lot of oxygen from the air. Otherwise there is a risk of suffocation in an extreme case.

•

Do not turn the air conditioner on and off from the power mains switch. Use the ON/OFF operation button.

•

Do not stick anything into the air outlet of the outdoor unit. This is dangerous because the fan is rotating at high speed.

•

Do not let children play with the air conditioner.

•

Do not cool the room too much if babies or invalids are present.

4 OI-330-04EG

Names of Parts

INDOOR UNIT

Air intakes

Air outlet

Remote control unit

Drain hose

Refrigerant tubes

OUTDOOR UNIT

Air outlet

NOTE

Air Intakes Air from the room is drawn into these sections and passes through

Air Outlet Air is blown out of the air conditioner through the air outlet.

Remote Control Unit The wireless remote control unit controls power on/off, operation

Refrigerant Tubes The indoor and outdoor units are connected by copper tubes

Drain Hose Moisture in the room condenses and drains off through this hose.

Outdoor (Condensing) Unit The outdoor unit contains the compressor, fan motor, heat

This illustration is based on the external appearance of a standard model. Consequently, the shape may differ from that of the air conditioner which you have selected.

This air conditioner consists of an indoor unit and an outdoor unit. You can control the air conditioner with the remote control unit.

air filters which remove dust.

mode selection, temperature, fan speed, timer setting, night setback and air sweeping.

through which refrigerant gas flows.

exchanger coil, and other electrical components.

5OI-330-05EG

Unit Display and Operation Selector

INDOOR UNIT KHS1852

OFF

TEST

Operation selector

OPERATION lamp

OPERATION

STANDBY lamp

TIMER lamp

STANDBY

TIMER

Remote control receiver

IMPORTANT

Avoid using radio equipment such as mobile phones near (within 1 m of) the indoor unit. Some radio equipment may cause the unit to malfunction.

INDOOR UNIT KHS0951 KHS1251

STANDBY lamp

Operation selector

OFF

TEST

Remote control receiver

OPERATION

TIMER

STANDBY

TIMER

lamp

If the trouble occurs, disconnect power and restart the air conditioner after a few minutes.

Remote control receiver This section picks up infrared signals from the remote control unit

(transmitter).

Operation selector

ON position This position is for operating the air conditioner with the wireless

remote control unit. Set the selector normally in this position.

OFF position Switch the selector to the OFF position if you are not going to use

the air conditioner for a few days or longer.

The OFF position does not disconnect the power. Use the main power switch to turn off power completely.

TEST position This position is used only when servicing the air conditioner.

CAUTION

Do not set at the TEST position for normal operation.

OPERATION lamp This lamp lights when the system is in the continuous HEAT,

DRY and COOL mode.

TIMER lamp This lamp lights when the system is being controlled by the timer.

OPERATION lamp

STANDBY lamp This lamp lights during the warm up period for heating and

when the system is defrosting.

6 OI-330-06EG

Remote Control Unit (Display)

Displayed when setting temperature

SET TEMP.

Displayed when transmitting data

HR.

(1) Operation mode

AUTO.......................................

HEAT........................................

MILD DRY................................

COOL.......................................

ON OFF

Symbols

Displayed when setting timer

(3) Temperature setting

60 – 88 °F

When set to 82 °F ...........

Current temperature

indication.........................

(4) Timer

12-hour ON Timer..................

12-hour OFF Timer.................

ON OFF

(2) Fan speed

AUTO.......................................

HIGH........................................

MEDIUM..................................

LOW.........................................

1-hour OFF Timer...................

(5) NIGHT SETBACK....................

(6) Confirmation of

transmission...........................

(7) Flap

Angle indication.....................

Sweep indication....................

HR.

7OI-202-09EG

Remote Control Unit

SET TEMP.

Display

HR.

ON OFF

Transmitter

ON/OFF operation button

1 HR. TIMER button

FAN SPEED selector button

FLAP button

TIMER ON button

TIMER OFF button

SET button

CANCEL button

ADDRESS switch

NOTE

(Cover closed)

1HR.

TIMER

OFF

TEMP.

TEMP. setting buttons

FAN SPEED

FLAP

ON OFF

CANCEL

SET

BATTERIES

MODE

NIGHT

SETBACK

ACL

MODE selector button

NIGHT SETBACK button

ACL button

Battery compartment (Pull off the cover to expose the batteries.)

The illustration above pictures the remote control unit after the cover has been lowered and removed.

Transmitter When you press the buttons on the remote control unit, the mark

appears in the display and the setting changes are transmitted to the receiver in the air conditioner.

Display Information on the operating status is displayed while the remote control

unit is switched on. If the unit is turned off, only the mode that was set previously is still displayed.

NIGHT SETBACK button For details, see “NightSetback Mode”. When you press this button in the

DRY, COOL or HEAT mode, the

mark appears in the display, and the remote control unit automatically adjusts the set temperature to save energy.

TEMP. setting buttons Press the

Press the

ON/OFF operation

This button is for turning the air conditioner on and off.

button to increase the temperature setting.

button to reduce the temperature setting.

button

TIMER ON button

TIMER OFF button

: The air conditioner starts at the set time.

: The air conditioner stops at the set time.

OFF

8 OI-202-10EG

Remote Control Unit (continued)

MODE selector button

Green or red (AUTO)

Red (HEAT)

Orange (DRY)

Green (COOL)

FLAP button Press this button either to select to set the airflow direction to one of

NOTE

FAN SPEED selector

button

1 HR. TIMER button

(1-hour off timer)

ACL button (All clear) Puts the remote control unit into pre-operation status. Always press

Use this button to select the AUTO, HEAT, DRY and COOL mode.

: When this setting is selected, the air conditioner calculates the

difference between the thermostat setting and the room temperature and automatically switches to the “COOL” or

“HEAT”mode as appropriate. : The air conditioner makes the room warmer. : The air conditioner reduces the humidity in the room. : The air conditioner makes the room cooler.

the six possible positions manually, or to select the sweep function, which moves the flap up and down automatically.

: The airflow direction can be set manually. (six positions) : The flap moves up and down automatically.

To switch to the sweep function ( ) when in the manual ( ) mode, hold down the FLAP button.

: The air conditioner automatically decides the fan speed. : High fan speed : Medium fan speed : Low fan speed

: When you press this button, regardless of whether the unit is

HR.

operating or stopped, the unit operates for one hour and then

shuts down.

this button after replacing the batteries.

SET button After using the TIMER ON button or TIMER OFF button to set the timer,

press this button to activate the new setting.

CANCEL button Press this button to cancel the current timer setting.

ADDRESS switch The address switch changes to prevent mixing of signals from remote

control units when two Sanyo air conditioners are installed next to each other. Normally, the address switch is set to A. When switching the address, the remote control unit must be changed to B. For more information, please contact the dealer where you made the purchase.

9OI-202-11EG

How to Install Batteries

Using the Remote Control Unit

1. Slide the cover in the direction indicated by the arrow and remove it.

2. Install two AAA alkaline batteries. Make sure the batteries point in the direction marked in the battery compartment.

NOTE

How to Use the Remote

Control Unit

ACL button

Cover

•

The batteries last about six months, depending on how much you use the remote control unit. Replace the batteries when the remote control unit's display fails to light, or when the remote control cannot be used to change the air conditioner’s settings.

•

Use two fresh leak-proof type-AAA alkaline batteries.

•

In replacing batteries, follow the instructions as mentioned in the sub-section “How to Install Batteries”.

•

If you do not use the remote control unit more than 1 month, take out the batteries.

When using the remote control unit, always point the unit’s transmitter head directly at the air conditioner's receiver.

Air conditioner (Indoor unit)

3. Use a thin object such as the tip of a pen to

press the ACL button.

Receiver

Remote control unit

Remote Control Unit

Installation Position

DO NOT

10 OI-202-12EG

The remote control unit may be operated either from a non-fixed position or from 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 places where it is covered

•

More than 26 feet (8 m) away from the air conditioner

•

In the path of the air conditioner’s airstream

•

Where it may become extremely hot or cold

•

Where it may be subject to electrical or magnetic noise

•

Where there is an obstacle between the remote control unit and air conditioner (since a check signal is sent from the remote control unit every 5 minutes)

(Transmitter head)

Mounting the Remote

Control Unit

Removable mounting Non-removable mounting

Using the Remote Control Unit (continued)

Wall

(Packed with the indoor unit)

Mounting on a wall A. Removable mounting

1) Momentarily hold the remote control unit at the desired mounting position.

2) Confirm that the air conditioner responds correctly when you press keys on the remote control from that position.

Wall

(Packed with the indoor unit)

3) After confirming correct operation, use a screwdriver to screw the mounting screw into the wall.

4) Hang the remote control unit from the mounting screw.

B. Non-removable mounting

1) Momentarily hold the remote control unit at the desired mounting position.

2) Confirm that the air conditioner responds correctly when you press keys on the remote control from that position.

3) After confirming correct operation, use a screwdriver to screw the mounting screw into the wall.

4) Remove the batteries of the remote control unit.

5) Use a screwdriver to screw the remote control unit securing screw into the wall through the hole in the battery compartment.

6) Replace the batteries.

7) Again confirm that the remote control unit operates correctly.

11OI-202-13EG

1. Automatic Operation

Operation with the Remote Control Unit

SET TEMP.

NOTE

SET

OFF

FAN SPEED

CANCEL

MODE

NIGHT

SETBACK

TEMP.

STEP 1

1HR.

TIMER

STEP 2

FLAP

ON OFF

Check that the circuit breaker on the power panel is turned on and that the operation selector of the indoor unit is in the ON position.

Once the below, you can have the air conditioner automatically bring the room to the desired temperature simply by pressing the ON/OFF operation button.

STEP 1 Press the MODE selector to select . STEP 2 Press the ON/OFF operation button.

mode is selected and the unit is preset by following the steps

To stop the air conditioner, press the ON/OFF operation button again.

•

NOTE

12 OI-202-14EG

To change the temperature setting, press the temperature setting buttons and change the setting to the desired temperature.

•

The temperature setting changes by two degrees each time one of the TEMP. buttons is pressed.

Operation with the Remote Control Unit (continued)

Press TEMP. to change the temperature setting.

To raise the temperature setting

To lower the temperature setting

•

Although the fan speed is set automatically, you can change the fan speed by pressing the FAN SPEED selector button.

To stop the air conditioner, press the ON/OFF operation button again.

TEMP.

13OI-202-15EG

2. Manual Operation

Operation with the Remote Control Unit (continued)

SET TEMP.

NOTE

1HR.

TIMER

STEP 2

OFF

TEMP.

STEP 3

STEP 4

STEP 5

FAN SPEED

FLAP ON OFF

CANCEL

SET

MODE

STEP 1

NIGHT

SETBACK

Check that the circuit breaker on the power panel is turned on and that the operation selector of the indoor unit is in the ON position.

If the automatic operation settings of the unit do not meet your needs, press the setting buttons as described below and change the settings as desired.

STEP 1 Press the MODE selector button and select the

desired mode.

For heating operation → For dehumidifying operation → For cooling operation →

STEP 2 To start the air conditioner, press the ON/OFF

operation button.

STEP 3 Press the TEMP. setting buttons to change the

temperature setting to the desired temperature.

Adjustable temperature range: 88 °F max. 60 °F min.

STEP 4 Set the FAN SPEED selector button to the setting you

want.

NOTE

If the fan speed is set to (Automatic), the fan speed switches automatically, according to the difference between the actual room temperature and the temperature setting.

STEP 5 Press the FLAP button and set the airflow direction as

desired. (Refer to “Adjusting the Airflow Direction” on page 21.)

To stop the air conditioner, press the ON/OFF operation button again.

14 OI-202-16EG

NOTE

3. Adjusting the Fan Speed

A. Automatic Simply set the FAN SPEED selector button to the position.

Cooling and DRY mode:

Operation with the Remote Control Unit (continued)

•

This appliance has a built-in 5-minute time delay circuit to ensure reliable operation. When the operation button is pressed, the compressor will start running within three minutes. In the event of power failure, the unit will stop. When the power is restored, the unit will restart automatically after five minutes.

A microcomputer in the air conditioner automatically controls the fan speed when the the difference between the room temperature and the set temperature is detected by the microcomputer which then automatically switches the fan speed to the most suitable level.

When difference between room temperature and set temperature is

4 °F and over High Between 4 °F and 2 °F Medium Below 2 °F Low

mode is selected. When the air conditioner starts operating,

FAN SPEED

Heating mode:

When difference between room temperature and set temperature is

4 °F and over High Below 4 °F Medium

B. Manual If you want to adjust fan speed manually during operation, just set the FAN

SPEED selector as desired. [

FAN SPEED

, ,or ]

15OI-202-17EG

4. Night Setback Mode

Operation with the Remote Control Unit (continued)

SET TEMP.

SET

BATTERIES

OFF

FAN SPEED

CANCEL

MODE

NIGHT

SETBACK

ACL

TEMP.

1HR.

TIMER

FLAP

ON OFF

The Night Setback Mode is used for saving energy.

Press the NIGHT SETBACK button while the air conditioner is operating. The

mark appears in the display.

To cancel the night setback function, press the NIGHT SETBACK button again.

16 OI-202-18EG

Operation with the Remote Control Unit (continued)

A. In Cooling and DRY

Mode:

(

and )

When the night setback mode is selected, the air conditioner automatically raises the temperature setting 2 °F when 30 minutes have passed after the selection was made, and then another 2 °F after another 30 minutes have passed, regardless of the indoor temperature when night setback was selected. This enables you to save energy without sacrificing comfort. This function is convenient when gentle cooling is needed.

2 °F

Setting temperature

Press the NIGHT SETBACK

2 °F

30 min. 30 min.

Time

button

B. In Heating Mode:

(

)

When the night setback mode is selected, the air conditioner automatically lowers the temperature setting 4 °F when 30 minutes have passed after the selection was made, and then another 4 °F after another 30 minutes have passed, regardless of the indoor temperature when night setback was selected. This enables you to save energy without sacrificing comfort. This function is convenient when gentle heating is needed.

Setting

4 °F

temperature

4 °F

Press the NIGHT SETBACK

30 min. 30 min.

Time

button

17OI-202-19EG

``DRY'' ( ) Operation

Special Remarks

How it works?

Heating ( ) Operation

Heating performance

Defrosting

STANDBY lamp

OPERATION

STANDBY

TIMER

•

Once the room temperature reaches the level that was set, the unit repeats the cycle of turning on and off automatically.

•

During DRY operation, the fan speed is automatically set to LOW or VERY LOW; the fan speed then switches back and forth between LOW (for 20 seconds) and VERY LOW (for 10 seconds).

•

“DRY” operation is not possible if the indoor temperature is 59°For

less.

•

Because this air conditioner heats a room by drawing in the heat of the outside air (heat pump system), the heating efficiency will fall off when the outdoor temperature is very low. If sufficient heat cannot be obtained with this air conditioner, use another heating appliance in conjunction with it.

•

When the outdoor temperature is low, frost or ice may form on the heat exchanger coil, reducing heating performance. When this happens, a microcomputer defrosting system operates. At the same time, the fan on the indoor unit stops and the STANDBY lamp remains lit until defrosting is completed. Heating operation restarts after several minutes. (This interval will vary slightly depending upon the outdoor temperature and the way in which frost forms).

•

For several minutes after the start of heating operation, the indoor fan will not start running until the indoor heat exchanger coil has warmed up sufficiently. This is because the COLD DRAFT PREVENTION SYSTEM is operating. During this period, the STANDBY lamp remains lit.

•

The STANDBY lamp also remains lit during defrosting or when the compressor has been turned off by the thermostat when the system is in the heating mode.

•

Upon completion of defrosting and when the compressor is turned on again, for heating operation, the STANDBY lamp will go off automatically.

•

Power failure

during operation

In the event of power failure, the unit will stop. When the power is resumed, the unit will restart automatically after five minutes.

Clicking Sound

Clicking sound is

heard from the air

conditioner

Remote Control Unit

18 OI-202-18EG

•

In heating or cooling operation, any plastic parts may expand or shrink due to a sudden temperature change. In this event, a clicking sound may occur. This is normal, and the sound will soon disappear.

•

The remote control unit sends the setting condition to the air conditioner regularly at five minute intervals.

Using the 12-Hour ON and OFF Timer

1. TIMER ON mode (Example)

1HR.

TIMER

OFF

FAN SPEED

ON OFF

SETBACK

CANCEL

SET

BATTERIES

ACL

TEMP.

MODEFLAP

NIGHT

After the length of time set for TIMER ON elapses, the unit begins operating.

The display depicted at left indicates that the air conditioner will begin operating in three hours.

Setting procedure:

STEP 1 Press the MODE selector button and select the desired

operation mode. (See “Operation with the Remote Control Unit,” page 14.)

STEP 2 Press the TIMER ON button.

(For example, to set the timer to turn on the air conditioner after three hours have elapsed, press the TIMER ON button three times.) The time can be set to from one to twelve hours, in one hour steps.

3.......12

STEP 3 Press the SET button.

•

The display changes immediately to its status previous to timer setting, but the

•

To check the status of the timer while it is counting down, press the SET

indication remains.

button.

Cancellation procedure: Press the CANCEL button.

2. TIMER OFF mode (Example)

OFF

1HR.

TIMER

OFF

FAN SPEED

MODEFLAP

ON OFF

SET

BATTERIES

CANCEL

NIGHT

SETBACK ACL

TEMP.

After the length of time set for TIMER OFF elapses, the unit stops operating.

The display depicted at left indicates that the air conditioner will stop operating in five hours.

Setting procedure:

STEP 1 Press the TIMER OFF button.

(For example, to set the timer to turn off the air conditioner after five hours have elapsed, press the TIMER OFF button five times.) The time can be set to from one to twelve hours, in one hour steps.

3.......12

STEP 2 Press the SET button.

•

The display changes immediately to its status previous to timer setting, but the

•

To check the status of the timer while it is counting down, press the SET

indication remains.

OFF

button.

Cancellation procedure: Press the CANCEL button.

19OI-202-21EG

Using the 1-Hour OFF Timer

1. 1-Hour OFF Timer This function causes the unit to operate for one hour and then stop,

regardless of whether the unit is on or off when the button is pressed.

1HR.

TIMER

ON OFF

SET

OFF

FAN SPEED

CANCEL

MODEFLAP

NIGHT

SETBACK

HR.

TEMP.

The

Setting procedure:

Regardless of whether the unit is operating or stopped, press the 1 HR. TIMER button.

HR.

Cancellation procedure:

Press the ON/OFF operation button to turn the unit off, wait for the unit to stop operating, and then press the ON/OFF operation button again. The 1-Hour Timer function is now cancelled and the unit operates normally.

indicator in the display indicates that this function is operating.

HR.

appears in the display.

BATTERIES

ACL

NOTE

2. Combining the 1-Hour OFF Timer and 12-Hour ON Timer

HR.

1HR.

TIMER

ON OFF

SET

OFF

FAN SPEED

CANCEL

TEMP.

MODEFLAP

NIGHT

SETBACK

•

If, while the 1-Hour Timer function is operating, the 1 HR. TIMER button is pressed once to cancel the function and then again, the unit continues to operate for one hour from that point in time and then stops.

•

If the 1 HR. TIMER button is pressed while the TIMER OFF function is operating, the OFF Timer is cancelled and the unit stops operating one hour later.

By combining the 1-Hour OFF Timer and 12-Hour ON Timer, it is possible to have the unit operate for just one hour from the present time, and then have it switch on again later at a time specified by you.

(Example) Having the unit operate for just one hour from the present time,

and then switch on again three hours from the present time.

Timer setting

Operate Stop Operate

1 hour 2 hours

3 hours

BATTERIES

ACL

Setting procedure:

STEP 1 Press the 1 HR. TIMER button. STEP 2 Press the TIMER ON button and use the SET button to set

the unit to turn on three hours later.

•

NOTE

Set the 1-Hour OFF Timer and the 12-Hour ON Timer simultaneously.

Unless you set the 1-Hour OFF Timer and the 12-Hour ON Timer at the same time, the 1-Hour OFF Timer may operate for one hour or more.

20 OI-202-22EG

Adjusting the Airflow Direction

1. Horizontal The horizontal airflow can be adjusted by moving the vertical vanes with

your hands to the left or right.

CAUTION

When the humidity is high, the vertical vanes should be in the front position during the cooling or dehumidifying operation. If the vertical vanes are positioned all of the way to the right or left, condensation may begin to form around the air vent and drip down.

2. Vertical The vertical airflow can be adjusted by moving the flap with the remote

control unit. Do not move the flap with your hands. Confirm that the remote control unit has been turned on. Use the FLAP button to set either the sweep function or one of the six airflow direction settings. (The maximum capacity is obtained at the position at4.)

1HR.

TIMER

OFF

FAN SPEED

ON OFF

CANCEL

SET

BATTERIES

A. Sweep function B. Setting the airflow manually

TEMP.

MODEFLAP

NIGHT

SETBACK ACL

The flap starts moving up and down to deliver air over the sweep range.

SWEEP

COOL

and

DRY

HEAT

Referring to the above illustration, use the FLAP button to set the airflow direction within the range used during the heating, cooling, or dehumidifying operation.

SWEEP

NOTE

CAUTION

•

The flap automatically closes when the unit is off.

•

During the heating operation, the fan speed will be very low and the flap will be in the horizontal position (position6) until the air being blown out of the unit begins to warm. Once the air warms up, the flap position and fan speed change to the settings specified with the remote control.

•

Use the FLAP button on the remote control to adjust the position of the flap. If you move the flap by hand, the flap position according to the remote control and the actual flap position may no longer match. If this should happen, shut off the unit, wait for the flap to close, and then turn on the unit again; the flap position will now be normal again.

•

Do not have the flap pointed down during cooling operation. Condensation may begin to form around the air vent and drip down.

21OI-202-23EG

INDOOR UNIT KHS0951 KHS1251

OFF

TEST

Operation without the Remote Control Unit

If you have lost the remote control unit or it has trouble, follow the steps below.

1. When the air conditioner is not running If you want to turn on the air conditioner, switch the operation selector to the OFF position, and then to the ON position.

KHS1852

TEST

OFF

Operation selector

NOTE

2. When the air conditioner is running

If you want to turn off the air conditioner, switch the operation selector to the OFF position.

The set temperature and fan speed are automatically set at the last selection before stopping.

Care and Cleaning

1. For safety, be sure to turn the air conditioner off and also to disconnect the power before cleaning.

2. Do not pour water on the indoor unit to clean it. This will damage the internal components and cause an electric shock hazard.

Casing and Grille

(Indoor Unit)

CAUTION

22 OI-202-22EG

Clean the casing and grille of the indoor unit with a vacuum cleaner brush, or wipe them with a clean, soft cloth.

If these parts are stained, use a clean cloth moistened with a mild liquid detergent. When cleaning the grille, be careful not to force the vanes out of place.

1. Never use solvents, or harsh chemicals when cleaning the indoor unit. Do not wipe the plastic casing using very hot water.

2. Some metal edges and the fins are sharp and may cause injury if handled improperly; be especially careful when you clean these parts.

3. The internal coil and other components of the outdoor unit must be cleaned every year. Consult your dealer or service center.

Care and Cleaning (continued)

Anti-mold filter The anti-mold filter behind the air intake grille should be checked and

cleaned at least once every two weeks.

Air intake grille

How to remove the

anti-mold filter

Cleaning Use a vacuum cleaner to remove light dust. If there is sticky dust on the

1. Grasp both ends of the

air intake grille and pull it out and up.

2. Push the anti-mold filter up slightly, and then pull it down.

Anti-mold filter

filter, wash the filter in lukewarm, soapy water, rinse it in clean water and dry it.

How to replace the

anti-mold filter

1. With the “FRONT” mark facing

you, slide the anti-mold filter up into the unit and then lower the handle into the groove on the unit.

2. After installing the anti-mold filter, press the locations marked by the arrows ( and close the air intake grille.

)

Air intake grille

Anti-mold filter

Insert into the groove on the unit.

23OI-202-23EG

Care and Cleaning (continued)

Air cleaning filter

(not provided)

NOTE

How to install the air

cleaning filter

NOTE

The air cleaning filter removes dust and dirt from the air, and reduces odors and smoke from tobacco.

KHS0951/KHS1251

The air cleaning filter is not provided with the air conditioner and must be purchased separately. The first time that you buy the air clean filter, it is necessary to get the STK-ARF4B model with frame. When changing the filter subsequently, it is only necessary to replace the filter itself (model

STK-F4B). Do not throw away the filter frame. KHS1852

The air clean filter is not provided with the air conditioner and must be purchased separately. Ask for the STK-F4B model when purchasing.

The air cleaning filter cannot remove harmful gases or vapors nor ventilate air in the room. You must open doors or windows frequently when you use gas or oil heating appliances. Otherwise there is a risk of suffocation in extreme cases.

The air cleaning filter needs to be installed behind the anti-mold filter.

Air clean filter (STK-F4B)

1. Remove the anti-mold filter.

2. To mount the STK-F4B, set the

air clean filter(sold separately) at the mounting position with the black side facing the rear. To mount the STK-ARF4B, mount the air clean filter in the position shown in the diagram with the (STK-F4B) FRONT marking facing the front.

3. Reinstall the anti-mold filter, and close the suction grill.

•

In general, the filter should be

Air clean filter (STK-ARF4B)

KHS1852

replaced once every three months.

•

Dirty air clean filters cannot be washed and reused. Purchase a replacement filter at your local dealer.

KHS0951/KHS1251

•

Cleaning the main unit and

remote control unit

Wipe clean using a soft, dry cloth.

•

To remove stubborn dirt, moisten a cloth in warm water no hotter than 104°F, wring thoroughly, and then wipe.

•

The air intake grille can be removed in order to wash it with water.

24 OI-202-22EG

Care and Cleaning (continued)

Removing and remounting

the air intake grille

CAUTION

Washing the grille with

water

•

With the air intake grille open all the way, grip both arms with your hands and pull toward you to remove. To remount, hold the air intake grille roughly horizontal and push it in until the arm shafts fit into the indentations in the main unit, then fit the grille into place.

When using a footstool or the like, be careful not to let it tip over.

•

Clean the grille gently using a soft sponge, or the like. Then wipe away any remaining moisture.

•

Neutral detergent may be used to remove stubborn dirt. Then rinse thoroughly with water and wipe away any remaining moisture.

Air intake grille

Arm

Do not

Tips for Energy Saving

•

Block the air intake and outlet of the unit. If they are obstructed, the unit will not work well, and may be damaged.

•

Let direct sunlight into the room. Use sunshades, blinds or curtains. If the walls and ceiling of the room are warmed by the sun, it will take longer to cool the room.

•

Always try to keep the air filter clean. (Refer to “Careand Cleaning”.) A clogged filter will impair the performance of the unit.

•

To prevent conditioned air from escaping, keep windows, doors and any other openings closed.

25OI-202-23EG

Troubleshooting

If your air conditioner does not work properly, first check the following points before requesting service. If it still does not work properly, contact your dealer or service center.

Trouble Possible Cause Remedy

Air conditioner does not run at all.

OPERATION lamp flashes and air conditioner does not operate.

Compressor runs but soon stops.

Poor cooling (or heating) performance.

Clicking sound is heard from the air conditioner.

OPERATION lamp lights but outdoor unit will not run.

1. Power failure. 1. Restore power.

2. Leakage circuit breaker tripped. 2. Contact service center.

3. Line voltage is too low. 3. Consult your electrician or dealer.

4. Operation button is OFF. 4. Press the button again.

5. Batteries in remote control unit have run down.

Trouble in wiring system. Contact service center.

Obstruction in front of condenser coil. Remove obstruction.

1. Dirty or clogged air filter. 1. Clean air filter to improve airflow.

2. Heat source or many people in room. 2. Eliminate heat source if possible.

3. Doors and/or windows are open. 3. Shut them to keep the heat (or cold) out.

4. Obstacle near air intake or air discharge port.

5. Thermostat is set too high for cooling (or too low for heating).

6. (Outdoor temperature is too low.) 6. (Consult your dealer or try to use a

In heating or cooling operation, any plastic parts may expand or shrink due to a sudden temperature change. In this event, a clicking sound may occur.

1. The use of portable telephones near the air conditioner may cause disturbance to its normal operation.

5. Replace batteries.

4. Remove it to ensure good airflow.

5. Set the temperature lower (or higher).

back-up heater.)

This is normal, and the sound will soon disappear.

1. Turn off the power then restart the air conditioner after 1 minute.

2. Consult your dealer.

Operating Range

The air conditioner is operable within the temperature ranges as listed below:

Temperature Indoor Air Intake Temp. Outdoor Air Intake Temp.

COOLING

HEATING

Maximum 95 °F DB/71 °F WB 115 °FDB Minimum 67 °F DB/57 °F WB 67 °FDB Maximum 80 °F DB/67 °F WB 75 °F DB/65 °FWB Minimum – DB/– WB 17 °F DB/15 °F WB

26 OI-202-22EG

For Parts or Service Contact SANYO FISHER SERVICE CORPORATION A DIVISION OF SANYO LOGISTICS CORPORATION 1411 West 190th Street, Suite 800, Gardena, CA 90248 U.S.A. 50 Beth Nealson Drive, Toronto, Ontario, M4H 1M6, CANADA

Sanyo CH1852, CH0952, KHS1852-S User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual