Panasonic U-120MF2U9, Technical Data Manual, Page: 15 / 181

Outline of 3WAY VRF SYSTEM
1
- 7
1
2
3
4
5
6
7
8
9
2. Features of 3WAY VRF SYSTEM
Outline of 3WAY VRF SYSTEM
1 - 6
1
2
3
4
5
6
7
8
9
2. Features of 3WAY VRF SYSTEM
Capacity control
The compressor combination (DC inverter comp DC inverter compressor) allows smooth capacity control from
0.6-Ton to 30-Ton.
Realization of smooth capacity control
from 0.6-Ton to 30-Ton
Capacity control is possible smoothly with a DC inverter compressor.
The following graph shows the image of the operating combination of compressors in case of 30-Ton system.
In actual operation, the combination will be changed according to the operating condition, operating time amount and priority of
compressor, etc.
Compressor HP Unit1(main) Unit2(sub1) Unit3(sub2)
6.3 6.3 6.3
6.3 6.3 6.3
DC
compressor
DC
compressor
*30-Ton = U-120MF2U9 Type × 3
In case of 30-Ton system
Capacity
(Ton)
LOAD
Example of 3 unit connection
Unit No.
1
Unit No.
2
Unit No.
3
DC
1
DC
4
DC
2
DC
5
DC
3
DC
6
0
5
10
15
20
25
30
0. 1 0 0. 2 0 0. 3 0 0.0
DC1 DC1 DC1 DC1 DC1
DC2 DC2 DC2 DC2
DC3 DC3 DC3
DC4 DC4
DC5
DC1
DC2
DC3
DC4
DC5
DC6
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