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C1872, C2472, CL2472, CL1872 service manual Dimensional Data, Indoor Unit KS1872, KS2472
Models:
CL1872
CL2472
C1872
C2472
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Troubleshooting
Specification
Cooling Characteristics
Install
Refrigerant Flow Diagram
Dimension
Maintenance
Recommended Wire Length and Diameter
Remedy for symptom 3 to
Method of Self-Diagnostics
Page 21
Image 21
3. DIMENSIONAL DATA
Indoor Unit
KS1872
KS2472
Unit: inch(mm)
21
Page 20
Page 22
Page 21
Image 21
Page 20
Page 22
Contents
Pay special attention when servicing the unit
KS1872 + C1872 + CL1872 KS2472 + C2472 + CL2472
DC INVERTER SPLIT SYSTEM AIR CONDITIONER
KS1872
When Transporting
SPECIAL PRECAUTIONS
When Installing
WARNING When Wiring
SPECIFICATIONS
Table of Contents
4. REFRIGERANT FLOW DIAGRAM
7. INSTALLATION INSTRUCTIONS
SPECIAL PRECAUTIONS WHEN SERVICING UNIT
10. TROUBLESHOOTING
11. CHECKING ELECTRICAL COMPONENTS
12.REFRIGERANT R410A
Temperature
1. OPERATING RANGE
Temperature
Models KS1872 + C1872
2-1.Unit Specifications
2. SPECIFICATIONS
Features
Dimensions & Weight
Dimensions & Weight
Features
Voltage Rating
Performance
Dimensions & Weight
Features
Voltage Rating
Performance
Dimensions & Weight
Features
Voltage Rating
Performance
Dimensions & Weight
Features
Voltage Rating
Performance
Dimensions & Weight
Features
Voltage Rating
Performance
Dimensions & Weight
Features
Voltage Rating
Performance
Dimensions & Weight
Features
Voltage Rating
Performance
2-2-1.Indoor Unit
2-2.Major Component Specifications
Remote Control Unit
Control PCB
Control PCB
Remote Control Unit
Fan Motor
Flap Motor
Control PCB
2-2-2.Outdoor Unit
Compressor
Fan Motor
Compressor
Control PCB
Fan Motor
Heat Exchanger Coil
Compressor
Control PCB
Fan Motor
Heat Exchanger Coil
Compressor
Control PCB
Fan Motor
Heat Exchanger Coil
Indoor Unit
2-3.Other Component Specifications
KS1872
KS2472
3. DIMENSIONAL DATA
Indoor Unit KS1872
KS2472
CL1872
Outdoor Unit C1872
CL2472
Outdoor Unit C2472
4-1.Refrigerant Flow Diagram
4. REFRIGERANT FLOW DIAGRAM
Insulation of Refrigerant Tubing
Indoor Unit KS1872
5-1.Temperature Charts
Cooling Characteristics
5. PERFORMANCE DATA
Indoor Unit KS1872 Outdoor Unit CL1872
Cooling Characteristics
Indoor Unit KS2472 Outdoor Unit C2472
Cooling Characteristics
Indoor Unit KS2472 Outdoor Unit CL2472
Cooling Characteristics
5-2.Air Throw Distance Charts
KS2472
Indoor Unit
6. ELECTRICAL DATA
6-1.Electrical Characteristics
Indoor Unit
KS1872
KS2472
Indoor Unit
Outdoor Unit
CL2472
and/or cleaning any electrical parts
6-2.Electric Wiring Diagrams
Outdoor Unit C1872
and/or cleaning any electrical parts
CL1872
8FA2-5257-68600-2
and/or cleaning any electrical parts
Outdoor Unit C2472
8FA2-5257-68700-3
and/or cleaning any electrical parts
Outdoor Unit CL2472
8FA2-5257-68400-3
7-1.Installation Site Selection
7. INSTALLATION INSTRUCTIONS
7-1-1.Indoor Unit
To prevent abnormal heat
7-1-2.Outdoor Unit
Each wire must be firmly connected
7-2.Recommended Wire Length and Diameter
7-3-1.Mounting on a Wall
7-3.Remote Control Unit Installation Position
7-4.How to Test Run the Air Conditioner
Fig. 8a Fig. 8b
Fig. 8c
How to remove the grille
7-5.Remove the Grille to Install the Indoor Unit
How to replace the grille
Fig. 12b
8-1.Address Setting of the Remote Control Unit
8. MAINTENANCE
How to Disconnect
How to Connect
Pull the cover upward
9-1.Operation Functions
9. FUNCTIONS
Emergency operation
SENSOR DRY
Timer backup
HIGH POWER
NIGHT SETBACK
Lamp colors
9-2.Protective Functions
Compressor discharge temperature control
Freeze prevention
CT Peak current cut-offcontrol
10. TROUBLESHOOTING
10-2.Method of Self-Diagnostics
PROCEDURE
1Self-diagnosticsLamps
Check the power voltage Blown
2If the self-diagnosticsfunction fails to operate
Check the indoor unit Is the fuse blown?
Normal
Using the TEST/T-RUNterminals
10-3.Checking the Indoor and Outdoor Units
1 Checking the indoor unit
Control
10-4-1.Indoor Fan Motor
10-4.Trouble Diagnosis of Fan Motor
Diagnostic procedure
Diagnostic results
Diagnostic procedure
10-4-2.Outdoor Fan Motor
Diagnostic results
Remedy for symptom 3 to
2 Electromagnetic interference
1 Noise malfunction
Locations most susceptible to noise
Trouble
11. CHECKING ELECTRICAL COMPONENTS
11-1-1.Power Supply Cord
11-1.Measurement of Insulation Resistance
11-1-2.Indoor Unit
Fuse PCB Assy
11-2.Checking Continuity of Fuse on PCB Assy
12-1.Characteristics of New Refrigerant R410A
SPECIAL PRECAUTIONS WHEN SERVICING UNIT
12-1-1.What is New Refrigerant R410A?
12-1-3.Characteristics
Tubing precautions
12-2.Checklist before Servicing
Size of flare
No addition of compressor oil for R410A
12-3.Tools Specifically for R410A
12-4.Tubing Installation Procedures
Tool Distinction
Tool Name
12-5.In Case of Compressor Malfunction
12-5-1.Procedure for Replacing Compressor
1 Recovering refrigerant
2 Replacing Compressor
5 Recharging
Configuration and characteristics of cylinders
Never charge a large amount
the unit. This may cause
2 Recovering refrigerant
12-6.In Case Refrigerant is Leaking
1 Detecting Leaks
3 Welding leaking points
12-7.Charging Additional Refrigerant
12-7-1.When Tubes are Extended
12-8. Retro-FittingExisting Systems
12-8-1.Use of Existing Units
OI-852-6-4180-800-00-0
KS1872 + C1872 + CL1872 KS2472 + C2472 + CL2472
Features
Contents
Alert Symbols
Product Information
Installation Location
Safety Instructions
Electrical Requirements
Remote control unit Drain hose Refrigerant tubes
Names of Parts
Remote Control Unit
Air intakes INDOOR UNIT Air outlet
Unit Display and Operation Button
Remote Control Unit Display
Remote Control Unit
HIGH POWER button
Remote Control Unit continued
QUIET button
COOL
Remote Control Unit continued
Using the Remote Control Unit
Using the Remote Control Unit continued
1. Operation
Operation with the Remote Control Unit
Operation with the Remote Control Unit continued
2.Adjusting the Fan Speed
3.Fan Only
Operation with the Remote Control Unit continued
4. Night Setback Mode
Setting
temperature
5. QUIET Mode
6. HIGH POWER Mode
7. ION Mode
Operation with the Remote Control Unit continued
Special Remarks
Remote Control Unit
‘‘DRY’’ Operation
Cooling Operation
1.How to set the present time
Setting the Timer
REPEAT timer
Setting the Timer continued
Tips for Energy Saving
Using the 1-HourOFF Timer
Adjusting the Airflow Direction
Care and Cleaning
Operation without the Remote
Control Unit
Cleaning
Care and Cleaning continued
Anti-MoldFilter
Anti-moldfilter
Air Clean Filter
Care and Cleaning continued
Operating Range
Troubleshooting
Trouble
Possible Cause
SANYO Fisher Service Company
For Parts Service Contact
A Division of SANYO North America Corporation
Sanyo Canada Inc
