Page
1.
OPERATING RANGE
1
2.
SPECIFICATIONS
2
2-1. Unit Specifications
2
2-2. Major Component Specifications
4
2-3. Other Component Specifications
7
3.
DIMENSIONAL DATA
8
4.
REFRIGERANT FLOW DIAGRAM
10
5.
PERFORMANCE DATA
12
5-1. Performance Charts
12
5-2. Air Throw Distance Chart
13
5-3. Cooling Capacity
14
5-4. Heating Capacity
16
6.
ELECTRICAL DATA
17
6-1. Electrical characteristics
17
6-2. Electrical Wiring Diagrams
19
7.
FUNCTION
20
7-1 Cool Mode Operation
20
7-2 Heat Mode Operation
21
7-3 Auto Mode Operation
22
7-4 Dry Mode Operation
23
7-5 Fan Mode Operation
23
7-6 Protection Operations in Cool and Dry Modes
24
7-7 Protection Operations in Heat Mode
26
7-8 Cold Draft Prevention (Heating)
29
7-9 Sleep Function
30
7-10 Daily Timer Function
30
7-11 IFEEL Function
30
7-12 Louver Control
30
7-13 Manual Unit Control and Led Indicators
31
7-14 Recovery from Power Failure
31
8.
TROUBLESHOOTING
32
8-1 Check before and after troubleshooting
32
8-2 Air conditioner does not operate
33
8-3 Some part of air conditioner does not operate
37
8-4 Air conditioner operates, but abnormalities are observed
39
8-5 If a sensor is defective
41
9.
CHECKING ELECTRICAL COMPONENTS
42
9-1 Measurement of Insulation Resistance
42
9-2 Checking Continuity of Fuse on PCS Ass'y
43
9-3 Checking Motor Capacitor
43
Table of Contents
ii
Содержание GR451R
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