Features Of 3Way Vrf System - Panasonic U-72MF1U9 Technical Data Manual

2. Features of 3WAY VRF SYSTEM

2-1. Outline of 3WAY VRF SYSTEM
System example
* Panasonic makes it possible to link outdoor
CONNECTION
unit together for a large capacity (24-Ton).
1
If indoor/outdoor units need servicing, a ball
valve (field supply) cuts off non-operational
units to let other units stay running.
2
System limitations
3
Maximum number of combined outdoor units
Maximum tonnage of combined outdoor units
Maximum number of connectable indoor units
Indoor/outdoor unit capacity ratio
Maximum actual piping length
4
Maximum level difference (when outdoor unit is lower)
Maximum total piping length
Combination of outdoor units
5
The DC inverter unit can be used independently or in combination.
CAUTION
6
Total
tonnage
Type (ton)
6
7
8
8
R407C models and R22 models must not be used in combination with each other.
6 8 12 14 16 18
1 2 1 3
1 1 2
CONCENTRATION
3
If your indoor capacity load changes in the future, it's easy to
24-Ton
add on both indoor and outdoor units using the same pipings.
40
If the additional installment of outdoor and indoor units are
50~130% *
expected, the size of refrigerant piping should be decided
492ft
according to the total capacity after the addition.
164 (131) ft
984 ft
20 22 24
2 1
1 2 3
1 - 4
Outline of 3WAY VRF SYSTEM
Since all pipings are concentrated
into one pipe shaft, you can minimize
piping space and construction labor
Solenoid
valve kit
Indoor unit
ADDITION