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Air Conditioner
Sanyo
CH2432, CH3632, XHS2432, XHS3632
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Section
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SM830076
2. Processes and functions
Contents
Main
SERVICE MANUAL
Please Read Before Starting
If Necessary, Get Help
2
In Case of Improper Installation
Important
CAUTION
When Installing
In an area with High Winds
In a Snowy Area (for Heat Pump-type Sys-tems)
WHO SHOULD USE THIS MANUAL
TABLE OF CONTENTS
Page
Introduction:
WHAT IS IN THIS MANUAL
diagnostic
Read Me First!
HOW TO USE THIS MANUAL
1. SPECIFICATIONS
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(A) Indoor Unit: XHS2432
Dimension : inch
Remote controller (Accessory)
(A) Indoor Unit: XHS3632
(B) Outdoor Unit: CH2432
(B) Outdoor Unit: CH3632
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1-5 Refrigerant Flow Diagram Outdoor Unit: CH2432 Indoor Unit: XHS2432
1-6 Operating Range
1-5 Refrigerant Flow Diagram Outdoor Unit: CH3632 Indoor Unit: XHS3632
1-6 Operating Range
2. PROCESSES AND FUNCTIONS
Fig. 1
2-1 Room Temperature Control
27
Fig. 2
2-2 Cold Draft Prevention (Heating Cycle)
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Fig. 4
Fig. 5
2-3 Automatic Fan Speed (Indoor Unit)
2-4 Outdoor Fan Speed Control
2-5 Freeze Prevention (Cooling)
Fig. 9
2-6 Condensing Temperature Control (Cooling)
33
Fig. 10
2-7 Overload Protection (Heating)
This function prevents the air conditioner from overloading.
2-8 Discharge Temperature Control (Cooling and Heating)
This function prevents the compressor motor from burnout by overheating.
Fig. 11 Chart Summary and Explanations
2-9 Auto. Mode for Automatic Heating/Cooling Switching
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37
2-10 Defrosting Control, Outdoor Heat Exchanger Coil (Heating)
Fig. 14
Fig. 13
Time Chart for Defrosting
2-11 4-Way Valve, Solenoid Control
Fig. 15
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(B) AUTO Control Mode
Fig. 17
2-12 Automatic Restart after Power Interruption
2-13 Electronic Expansion Valve
2-14 Compressor Discharge Gas Temperature
(B) Heating (Except During Defrosting)
Model
41
2-15 Compressor Current Detection Circuit
Fig. 18
2-16 Electronic Expansion Valve Control
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3-1 Indoor Unit
Electric Wiring Diagram
1XHS2432, XHS3632
1
MOV
W 854-2-5268-772-00-0 (XHS)
Schematic Diagram
FMI
Symbols Description
1CH2432
TH7
Electric Wiring Diagram
TH8
FMO
W 854-2-5268-582-00-2 (CH2432)
1CH2432
Schematic Diagram
CM
FMO
2CH3632
TH7
Electric Wiring Diagram
TH8
FMO2
W 854-2-5268-621-00-0 (CH3632)
FMO1
Schematic Diagram
CM
FMO2
FMO1
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4. SERVICE PROCEDURES
4-1 Troubleshooting
33
33 3. Check power supply
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Fig. 20
CAUTION
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14) Symptom: LCD on the remote controller displays CHECK E15.
15) Symptom: LCD on the remote controller displays CHECK E16.
16) Symptom: LCD on the remote controller displays CHECK L13.
17) Check P9 is displayed on the remote control unit.
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(6) Procedures When a Specific Component Does Not Work 1) Indoor fan does not operate.
2) Flaps in indoor units air outlet does not operate, when you press SWEEP button.
3) Compressor motor does not operate.
4) Outdoor fan does not operate.
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(1) Measurement of Insulation Resistance
4-2 Checking the Electrical Components
(2) Checking the Protective Devices
(3) Checking the Electrical Parts
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Indoor Unit XHS2432
(4) Sensor and Solenoid Layout Diagram
Outdoor Unit CH2432
TH2 (E1), (RED) TH3 (E2), (BLK)
Electronic expansion valve
Indoor Unit XHS3632
(4) Sensor and Solenoid Layout Diagram
TH3 (E2), (BLK)
Outdoor Unit CH3632
TH2 (E1), (RED)
Electronic expansion valve
(5) Thermistor Characteristic Curve (1) Room temp. sensor : TH1 (KTEC-35)
Temperature (F)
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4
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Refrigerant circuit address (black)
2
ON
1
(0 when shipped from factory)
Both 10s and 20s
10 position 20
position ON side
: S2
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(11) Test Run
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101
(11)-3. Test Run Procedure
1)
One of CN4 of all linked outdoor units shold be short. 2)
NOTE
(12) P.C.B. and Parts Location
P.C.B. (CR-THS2432) FOR INDOOR UNITS
103
(12) P.C.B. and Parts Location
P.C.B. (CR-CH2432) FOR OUTDOOR UNITS
CR-CH2432
(13) Checking procedure for each P.C.B.
(14) Check Pins