54
PIPING AND WIRING FOR INDOOR UNIT
ENGLISH
Pressure Drop
NOTE
!
• To secure enough water flow rate, do not set water pump capacity as Minimum.
It can lead unexpected flow rate error CH14.
NOTE
!
When installing the product, install additional pump in consideration of the pressure loss and
pump performance.
If flow-rate is low, overloading of product can occur.
Capacity
Rated flow-rate
[LPM]
Pump Head [m]
(at rated flow-
rate)
Product pressure
drop [m]
(Plate heat
exchanger)
Serviceable Head
[m]
16kW
46.0
9.5
1.4
8.1
14kW
40.0
10.0
1.1
8.9
12kW
34.0
10.7
0.8
9.9
9kW
26.0
11.3
0.4
10.9
7kW
20.0
11.6
0.3
11.3
5kW
17.0
11.8
0.2
11.6
Water pump Capacity
The water pump us variable type which is capable to change flow rate, so it may be required to
change default water pump capacity in case of noise by water flow. In most case, however, it is
strongly recommended to set capacity as Maximum.