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1
Mini VRF SYSTEM
Control Functions
2. Compressor Control
(2) Primary Current Protection
The primary current protection value is divided into the cooling and heating mode.
Also, the cooling of single-phase outdoor unit can be divided into two tables according to the outdoor air
temperature. 3-phase outdoor unit has no distinction for outdoor air temperature.
Also, the cooling of single-phase outdoor unit can be divided into two tables according to the outdoor air
temperature. 3-phase outdoor unit has no distinction for outdoor air temperature.
(3) Secondary Current Protection (Common to cooling & heating mode)
Regardless of the outdoor air temperature, the value of the primary current protection is controlled by the
contents of the table listed below.
contents of the table listed below.
Concept view of outdoor air temperature
Table 1
unit : Amp.
unit : Amp.
unit : Amp.
Single-phase Model
Single-phase Model
3-phase Model
Single-phase Model
3-phase Model
<Cooling>
<Heating>
Stop*1
Down*2
Not up*3
When outdoor air temperature increases :
When outdoor air temperature decreases :
43.0°C
Outdoor air
temperature:
temperature:
Cooling at Table 2
Section of outdoor air temp.
Cooling at Table 1
42.0°C
Outdoor air
temperature:
temperature:
Cooling at Table 2
Section of outdoor air temp.
Cooling at Table 1
Followed by normal control
Table 2
4 hp
20.0~22.0
19.0~20.0
~19.0
22.0~
5 hp
23.0~25.0
22.0~23.0
~22.0
25.0~
6 hp
26.0~28.0
25.0~26.0
~25.0
28.0~
Stop*1
Down*2
Not up*3
Followed by normal control
4 hp
20.0~22.0
19.0~20.0
~19.0
22.0~
5 hp
23.0~25.0
22.0~23.0
~22.0
25.0~
6 hp
24.0~28.0
23.0~24.0
~23.0
28.0~
Stop*1
Down*2
Not up*3
Followed by normal control
4 hp
21.0~23.0
20.0~21.0
~20.0
23.0~
5 hp
24.5~26.5
23.5~24.5
~23.5
26.5~
6 hp
28.0~30.0
27.0~28.0
~27.0
30.0~
hp : horse power
hp : horse power
hp : horse power
unit : Amp.
3-phase Model
Stop*1
Down*2
Not up*3
Followed by normal control
4 hp
8.5~10.5
7.5~8.5
~7.5
10.5~
5 hp
10.0~12.0
9.0~10.0
~9.0
12.0~
6 hp
12.0~14.0
11.0~12.0
~11.0
14.0~
hp : horse power
unit : Amp. hp : horse power
Stop*1
Down*2
Not up*3
Followed by normal control
unit : Amp. hp : horse power
Stop*1
Down*2
Not up*3
Followed by normal control
Common to 4/5/6 hp
21.0~24.0
20.0~21.0
~20.0
24.0~
Common to 4/5/6 hp
15.0~18.0
14.0~15.0
~14.0
18.0~
Each value shown in the table indicates the detected value.
When the detected value is detected as shown in the table :
*1
*2
*3
Stop the compressor.
Decrease the frequency that the compressor is controlled.
Do not increase the frequency that the compressor is
controlled.
controlled.
NOTE
Each value shown in the table indicates the detected value.
When the detected value is detected as shown in the table :
*1
*2
Stop the compressor.
Decrease the frequency that the compressor is controlled.
*3 Do not increase the frequency that the compressor is
controlled.
NOTE
unit : Amp.
Stop*1
Down*2
Not up*3
Followed by normal control
4 hp
8.5~10.5
7.5~8.5
~7.5
10.5~
5 hp
10.0~12.0
9.0~10.0
~9.0
12.0~
6 hp
12.0~14.0
11.0~12.0
~11.0
14.0~
hp : horse power
SM830195-03_Mini VRF SYS.indb 6
SM830195-03_Mini VRF SYS.indb 6
2014/09/04 18:14:06
2014/09/04 18:14:06
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