Page
1. SPECIFICATIONS
4
1-1 Unit specifications
4
1-2 Major Component specifications
6
1-3 Other Component specifications
8
1-4 Indoor Fan performance
9
2. DIMENSIONAL DATA
10
3. ELECTRICAL DATA
11
3-1 Electric Wiring Diagrams
11
4. FUNCTION
12
4-1 Room Temperature Control
12
4-2 Dry Operation (Dehumidification)
14
4-3 Automatic Switching between Cooling and Heating
14
4-4 Freeze Prevention (Cooling and Dry)
15
4-5 Overload Prevention (Heating)
15
4-6 Cold Draft Prevention (Heating)
16
4-7 Defrosting Operation (Heating)
17
4-8 Drain Pump and float switch
18
5. TROUBLESHOOTING
19
5-1 Check before and after troubleshooting
19
5-2 Air conditioner does not operate
19
5-3 Some part of air conditioner does not operate
23
5-4 Air conditioner operates, but abnormalities are observed
25
5-5 If a sensor is defective
27
6. CHECKING ELECTRICAL COMPONENTS
28
6-1 Measurement of Insulation Resistance
28
6-2 Checking Continuity of Fuse on PCB Ass'y
29
6-3 Checking Motor Capacitor
29
7. MAINTENANCE
30
7-1 Changing Address of Remote Control Unit in Indoor Unit
30
Table of Contents
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