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22
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Item
Model
302 servies
Max. one way piping length 50m
Max. vertical height difference Outdoor unit is higher 30m Outdoor unit is lower 15m
Piping length limitations
How to obtain the cooling and heating capacity
Example : The net cooling capacity of the model FDTVA302HEN1R 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 ˚C and outdoor dry-bulb temperature 35 ˚C is
Net cooling capacity = 7.1 × 1.00 × (0.989 - 0.01) × 1.0 ≒ 7.0 kW
Factor by air
temperatures
FDTVA302HEN1R Air flow
“High”
Length 15m.
Height difference 5 m
Note (1) Values in the table indicate
the one way piping length
between the indoor and
outdoor units.
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