Mitsubishi Electric FDT125VNVF Technical Manual page 204

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 FDUM100VNVF 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℃ and outdoor dry-bulb temperature 35℃ is
Net cooling capacity =
Net cooling total capacity
of FDUM100VNVF
(Outdoor temp. : 35℃DB
Indoor temp. : 19℃WB)
shown in table 1.9.1
Model
100, 125, 140
50m
10.0 × 1.00 ×
Air flow : P-Hi
shown in table 1.9.2
Piping length :15m
(Gas pipe size is φ15.88)
shown in table 1.9.3
203
-
Outdoor unit is higher 30m
Outdoor unit is lower 15m
. = .
0.978 × 0.99
Height diff. :5m
(Outdoor unit : below)
shown in table 1.9.4
-
'12 • PAC-T-174
200, 250
70m
9.7kW