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Sanyo
CH1852, CH0952, KHS1852-S service manual Top view
Models:
KHS1852-S
CH0952
CH1852
1
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Troubleshooting
Specification
Cooling Characteristics
Install
Refrigerant Flow Diagram
Dimension
Recommended Wire Length and Diameter
E. Check TIMER on the remote control unit
Adjusting the Fan Speed
115V Single phase 60 Hz
Page 45
Image 45
(9)
Printed circuit board
POW-CH095
(for CH0951, CH1251 and CH1852)
Top view
41
Page 44
Page 46
Page 45
Image 45
Page 44
Page 46
Contents
KHS1852 / CH1852
KHS0951 / CH0951 KHS1251 / CH1251
KHS1852 CH1852
KHS0951 KHS1251
When Installing…
In Case of Improper Installation
When Connecting Refrigerant Tubing
When Servicing
Table of Contents
APPENDIX
CHECKING ELECTRICAL COMPONENTS
Temperature
1. OPERATING RANGE
Indoor Air Intake Temp
Outdoor Air Intake Temp
2-1.Unit Specifications
2. SPECIFICATIONS
KHS0951
CH0951
Dimensions & Weight
Features
2 Indoor unit
KHS1251
Dimensions & Weight
Features
3 Indoor unit KHS1852 Outdoor unit CH1852
Voltage Rating
2-2-1.Indoor Unit
2-2.Major Component Specifications
2 Indoor unit KHS1251
Remote Control Unit
Control PCB
Fan & Fan Motor
3 Indoor unit KHS1852
Remote Control Unit
Control PCB
Fan & Fan Motor
1 Outdoor unit CH0951
2-2-2.Outdoor Unit
Control PCB
2 Outdoor unit CH1251
Compressor
Fan & Fan Motor
Control PCB
3 Outdoor unit CH1852
Compressor
Fan & Fan Motor
2-3-1.Indoor Unit
2-3.Other Component Specifications
KHS0951
KHS1251
1 Outdoor Unit
2-3-2.Outdoor Unit
CH0951
2 Outdoor Unit
3 Outdoor Unit
Power Relay PR
CH1852
DFU24D1-F
3-1.Unit
3. DIMENSIONAL DATA
3-1-1.Indoor Unit
1 Indoor unit KHS0951 / KHS1251
2 Indoor unit KHS1852
1 Outdoor unit CH0951 / CH1251
3-1-2.Outdoor Unit
Wide tube service valve ø15.88 5/8 Unit inch mm
12-19/32 Narrow tube service valve ø6.35 1/4
2Outdoor unit CH1852
4-ø15/32
4-1.Refrigerant Flow Diagram
4. REFRIGERANT FLOW DIAGRAM
Indoor unit KHS0951 / KHS1251
Outdoor unit CH0951 / CH1251
5. PERFORMANCE DATA
5-1.Performance Charts
Cooling Characteristics
Heating Characteristics
Heating Characteristics
Cooling Characteristics
KHS1251
CH1251
Heating Characteristics
Cooling Characteristics
KHS1852
CH1852
Cooling Room air temp. 80¡F 26.7¡C
5-2.Air Throw Distance Chart
Fan speed
High
Fan speed
Cooling Room air temp. 80¡F 26.7¡C
High
Horizontal distance ft
Fan speed
Cooling Room air temp. 80¡F 26.7¡C
High
Horizontal distance ft
115V Single phase 60 Hz
5-3.Cooling Capacity
KHS0951
CH0951
KHS1251
115 V Single phase 60 Hz
CH1251
TC Total Cooling Capacity
KHS1852
208 V Single phase 60 Hz
CH1852
TC Total Cooling Capacity
KHS1852
230 V Single phase 60 Hz
CH1852
TC Total Cooling Capacity
Outdoor temperature ¡F DB
5-4.Heating Capacity
Heating capacity ratio %
6. ELECTRICAL DATA
6-1.Electrical Characteristics
KHS0951
CH0951
CH1251
KHS1251
COOLING
HEATING
CH1852
KHS1852
COOLING
HEATING
1 Indoor unit KHS0951 / KHS1251
6-2.Electric Wiring Diagrams
and/or cleaning any electrical parts
disconnect power before checking, servicing
To avoid electrical shock hazard, be sure to
2 Indoor unit KHS1852
and/or cleaning any electrical parts
disconnect power before checking, servicing
To avoid electrical shock hazard, be sure to
3 Outdoor unit CH0951 / CH1251
and/or cleaning any electrical parts
disconnect power before checking, servicing
To avoid electrical shock hazard, be sure to
4 Outdoor unit CH1852
5 Printed circuit board POW-KHS095Afor KHS0951
Top view
Bottom view
6 Printed circuit board POW-KHS125Afor KHS1251
Top view
Bottom view
Bottom view
Top view
8 Printed circuit board POW-KHS1852for KHS1852
Top view
Bottom view
Top view
7-1.Installation Site Selection
7. INSTALLATION INSTRUCTIONS
7-1-1.Indoor Unit
AVOID
Install the outdoor unit above snowfall line
7-1-2.Outdoor Unit
AVOID
Fig. 5a
7-2-1.Mounting on a Wall
7-2.Remote Control Unit Installation Position
Removable mounting
Fig. Non-removablemounting
7-3-1.Finding the Address Switches
7-3.Address Switches
7-3-2.Switch Positions for Up to 2 Units
Remote Control Unit
7-4.Recommended Wire Length and Diameter
Each wire must be firmly connected
WIRING SYSTEM DIAGRAM
8-1.Room Temperature Control
8. FUNCTION
Cooling
Heating
8-2.Dry Operation Dehumidification
8-5.Overload Prevention Heating
8-4.Freeze Prevention Cooling
8-6.Cold draft Prevention Heating
Defrosting Flowchart
8-7.Defrosting Operation Heating
Defrosting Mode Timing Chart
8-8.Low Temperature Cutff Heating
9-1.Check before and after troubleshooting
9. TROUBLESHOOTING
9-1-1.Check power supply wiring
9-1-2.Check inter-unitwiring
9-2-1.Circuit breaker trips or fuse blows
9-2.Air conditioner does not operate
A. Power is not supplied
9-2-2.Neither indoor nor outdoor unit runs
C. Check remote control unit
E. Check TIMER on the remote control unit
D. Check fuse on the indoor PCB Assy
9-2-3.Only outdoor unit does not run
9-2-4.Only indoor unit does not run
A. Check setting temperature
9-3.Some part of air conditioner does not operate
9-3-1.Only indoor fan does not run
9-3-2.Only flap motor does not run
9-3-5.Only compressor does not run
9-3-4.Only outdoor fan does not run
HEAT COOL
COOL HEAT
9-4-3.Excessive cooling or heating
9-4-2.Poor cooling or heating
9-5-2.Room temp. thermistor TH2 is defective
9-5.If a sensor is defective
A. Open
B. Short
10. CHECKING ELECTRICAL COMPONENTS
10-1-1.Power Supply Wires
10-1.Measurement of Insulation Resistance
10-1-2.Indoor Unit
10-3.Checking Motor Capacitor
10-2.Checking Continuity of Fuse on PCB Assy
11. ARRANGEMENT OF ELECTRICAL COMPONENT
Indoor Unit KHS0951 / KHS1251
KHS1852
Outdoor Unit CH0951 / CH1251 / CH1852
Electric Parts
Parts Layout in Unit
APPENDIX
KHS0951 + CH0951 KHS1251 + CH1251
KHS1852 + CH1852
Features
Contents
Alert Symbols
Product Information
Installation Location
Safety Instructions
Electrical Requirements
Remote Control Unit
Names of Parts
INDOOR UNIT Air intakes Air outlet
Drain hose Refrigerant tubes OUTDOOR UNIT
Unit Display and Operation Selector
Symbols
Remote Control Unit Display
SET TEMP
H OFF
Remote Control Unit
Remote Control Unit continued
How to Install Batteries
Using the Remote Control Unit
How to Use the Remote Control Unit
Remote Control Unit Installation Position
Mounting the Remote Control Unit
Using the Remote Control Unit continued
1. Automatic Operation
Operation with the Remote Control Unit
Press TEMP. to change the temperature setting
Operation with the Remote Control Unit continued
To raise the temperature TEMP. setting
To lower the temperature setting
2. Manual Operation
Operation with the Remote Control Unit continued
3.Adjusting the Fan Speed
Operation with the Remote Control Unit continued
4. Night Setback Mode
Operation with the Remote Control Unit continued
The Night Setback Mode is used for saving energy
BATTERIES ACL
A. In Cooling and DRY Mode and
Operation with the Remote Control Unit continued
Power failure during operation Clicking Sound
Special Remarks
Remote Control Unit
``DRY Operation
H OFF
Using the 12-HourON and OFF Timer
Using the 1-HourOFF Timer
Adjusting the Airflow Direction
1. Horizontal
2. Vertical
Care and Cleaning
Operation without the Remote Control Unit
Anti-moldfilter How to remove the anti-moldfilter
Care and Cleaning continued
How to replace the anti-moldfilter
Air intake grille
Air cleaning filter not provided
Care and Cleaning continued
Tips for Energy Saving
Care and Cleaning continued
Do not
Operating Range
Troubleshooting
For Parts or Service Contact
SANYO FISHER SERVICE CORPORATION
A DIVISION OF SANYO LOGISTICS CORPORATION