Piping Length Limitations; How To Obtain The Cooling And Heating Capacity - Mitsubishi Heavy Industries FDT Series Technical Manual

Piping length limitations

Item
Max. one way piping length
Max. vertical height difference
Note (1) Values in the table indicate the one way piping length between the indoor and outdoor units.

How to obtain the cooling and heating capacity

Example : The net cooling capacity of the model FDT100VNXVF with the air flow "P-High", the piping length of 15m, the outdoor unit
located 5m lower than the indoor unit, indoor wet-bulb temperature at 19.0
Net cooling capacity =
Net cooling total capacity
of FDT100VNXVF
(Outdoor temp. : 35 DB
Indoor temp. : 19 WB)
shown in table 1.9.1
Model
40, 50, 60
30m
Outdoor unit is higher 20m
Outdoor unit is lower 20m
10.0 1.00
Air flow : P-High
shown in table 1.9.2
Piping length :15m
(Gas pipe size is 15.88)
shown in table 1.9.3
- 202
71
50m
Outdoor unit is higher 30m
Outdoor unit is lower 15m
and outdoor dry-bulb temperature 35
.
0.978 0.99 9.7kW
Height diff. :5m
(Outdoor unit : below)
shown in table 1.9.4
-
'12 • PAC-T-173
100, 125, 140
100m
is