Service Manual 35
Operation
Cooling mode operation
• Operating frequency of compressor depend on the difference of the temperature.
(= intake air Temp.- Compressor off Temp.
• Compressor off temp.= setting temp. -0.5°C
on temp. = setting temp. +0.5°C
• If compressor operates at some operating frequency, the operating frequency of compressor cannot be
changed within 30 seconds.
• Condition of compressor turned off
- When intake air temperature stay at the temperature between setting temp. -0.5°C and setting temp.
-1.0°C for 3 minutes continuously.
- When intake air temperature reaches below the temperature of setting temp. -1.0°C.
• Compressor 2 minutes delay
- The compressor can restart minimum 2 minutes later after compressor off.
Temp. differences
Comp. Operating frequency
over 3.0°C
Step 7
over 2.5°C
Step 6
2.0~2.49°C
Step 5
1.5~1.99°C
Step 4
1.0~1.49°C
Step 3
0.5~0.99°C
Step 2
0.0~0.49°C
Step 1
[The operating freq. step of comp.]
[The targeting operating freq. of comp. each model]
Model
AS-W096U_0 Series
15
23
31
38
47
58
65
AS-W126U_0 Series
15
25
35
46
58
61
66
AS-W096U_1 Series
20
35
40
48
53
58
62
AS-W126U_1 Series
20
35
45
57
69
77
86
Comp. Operating frequency
Step 1
Step 2
Step 3
Step 4
Step 5(Fc)
Step 6
Step 7
