Panasonic U-72MF1U9 Technical Data Manual page 12

2. Features of 3WAY VRF SYSTEM
Capacity control
The compressor combination (DC inverter compressor + constant-speed compressor) allows smooth capacity control from
0.6-Ton to 24-Ton.
Realization of smooth capacity control
from 0.6-Ton to 24-Ton
Capacity control is possible smoothly with a DC
inverter compressor. The right graph shows the
image of the operating combination of compres-
sors in case of 24-Ton system. In actual operation,
the combination will be changed by operating
condition, operating time amount, priority of com-
pressor and so on.
Comp. HP Unit1(main) Unit2(sub1) Unit3(sub2)
DC comp. 4.0
AC comp. 5.0
1
*24 Ton = U-96MF1U9 (U-96MF1U9E) Type x 3
Unit 1 Unit 2
2
3
4
5
6
7
8
Capacity
4.0 4.0
5.0 5.0
Unit 3
In case of 24-Ton system
(Ton)
24
20
16
12
8 DC1
DC2
4
DC1
DC3
DC2
Example of 3 unit connection
1 - 6
Outline of 3WAY VRF SYSTEM
DC1
DC1
DC2
DC1 DC2
DC3
DC2
DC3
AC1
DC3 AC1 AC2
AC1 AC2 AC3
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