Specifications
73
2.2.2 Range of usage & limitations
Indoor unit
◆Individual flow divide controller
First branch
Allowable length of refrigerant piping, Height difference between indoor and outdoor unit
Outdoor unit
50m
Max 30m
Max 30m
(Max 70m )
15mMax
(Outdoor unit is lower : 40m)
(Lowest indoor unit)
Individual flow divide
controller
(Highest indoor unit)
Between the outdoor unit and first branch (main piping): Max 70m (actual length)
Between the first branch and each indoor unit : Max 30m (each indoor unit) (actual length)
The indoor unit and individual flow divide controller positions should be within the range of the reach of the
connections of the wires that come with the individual flow divide contoroller
Note (1)
System
Refer to the Selection chart.
1 to 12 units 1 to 16 units
Item
Indoor intake air temperature
(Upper, lower limits)
Outdoor air temperature
(Upper, lower limits)
Single direction piping lenght Indoor unit MAX. 100m
Max. 70m
Max. 30m
6 min or more(from stop to stop or from start to start)
3 min or more
Within ±10% of rated voltage
MAX. 50m
MAX. 40m
MAX. 15m
Dew point temperature 28 or less, relative humidity 80% or less
Outdoor unit to first branching (main piping)
Piping length after the first branching
Number of connected units
Total capacity
FDCP224HKXRE2A
224HKXRE2V
FDCP280HKXRE2A
280HKXRE2V
110 ~ 292 132 ~ 364
When above outdoor unit
When below outdoor unit
Indoor units
that can be
used in
combination
Difference in
height between
indoor and outdoor
units
Difference in height between indoor units
Indoor unit atmosphere (behind ceiling)
temperature and humidity
1 cycle time
Stop time
Voltage fluctuation
Interval unbalance
Compressor
stop/start
frequency
Power source
voltage
Voltage drop during start
Within ± 3% of rated voltage
Within ±15% of rated voltage
Permissible lengths of piping










