5m 10m 15m 20m 25m 30m
0.01 0.02 0.03 0.04 0.05 0.06
Piping length limitations
Model
Item
40~60 71, 100, 125, 140 200, 250
Max. one way piping length
30m 50m 70m
(2)
Max. vertical height difference
Outdoor unit is higher 30m
Outdoor unit is lower 15m
Outdoor unit is higher 20m
Outdoor unit is lower 20m
Notes (1) Values in the table indicate the one way piping length between the indoor and outdoor units.
(2) When φ22.22 gas pipe is applied to 200 and 250, maximum one way length is limited to 35m.
How to obtain the cooling and heating capacity
Net cooling capacity = 10.0 × 1.00 × (0.978 - 0.01)
.
=.
9.7kW
When the outdoor unit is located below indoor units in cooling mode, or when the outdoor unit is located above indoor units in
heating mode, the correction coefficient mentioned in the below table should be subtracted from the value in the above table.
Height difference between the indoor unit and
outdoor unit in the vertical height difference
1.9.4 Height difference between the indoor unit and outdoor unit
Adjustment coefficient
Example : The net cooling capacity of the model FDUM100VNVD with the air flow “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 total capacity
of FDUM100VNVD
(Outdoor temp. : 35℃DB
Indoor temp. : 19℃WB)
shown in table 1.9.1
Air flow : High
shown in table (1.9.2)
Piping length :15m
(Gas pipe size is φ15.88)
shown in table 1.9.3
Height diff. :5m
(Outdoor unit : below)
shown in table 1.9.4
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