Heat Controller VMH C Series Service Manual page 22

Service Manual
8.4.2 Cooling Mode
8.4.2.1 Compressor running rules:
The operation frequency of compressor after starting submits to the following rule.
If users switch on AC by remote controller, the compressor will run at the Fmax frequency for 7
minutes according to outdoor ambient temp. During the 7 minutes, frequency limitation is active.
7 minutes later, the compressor running frequency will be controlled as below:
While
Temp. zone
Frequency
VMH 30, 36 SerieS
T4
T4 °F
T4 °C
℃
113°
(45)
45
109°
(43)
43
104°
(40)
40
100° (38)
38
30
86°
(30)
28
82°
(28)
22
72° (22)
20
68°
(20)
T1-TS
T1-TS °F T1-TS
℃
38° (3.5)
3.5
A
3.0
37.5° (3.0)
B
36.5° (2.5)
2.5
C
35.5° (2.0)
2.0
34.5° (1.5)
1.5
34° (1.0)
1.0
0.5
33° (0.5)
-0.5
31° (-0.5)
-1.0
30° (-1.0)
A B
F8 F8
Fmax=F4
Fmax=F7
Fmax=F8
Fmax=F6
Fmax=F3
D
E
F
G
H
C D
F7 F6
22
20
E F G
F5 F3 F1
Heat Controller