Pressure Drop - LG Therma V Series Installation Manual

Installation of Indoor Unit

Pressure Drop

NOTICE
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.
Model
AHNW03604A2
AHNW09604A2
AHNW16606A2
AHNW16809A2
The water pump is operating according to below curves.
8
7
6
5
4
3
2
1
36 Air-to-Water Heat Pump
Rated flow-rate
[LPM]
8.6
25.8
46
3kW 9kW
Rated Rated
0 1 2
Pump Head [m]
(at rated flow-rate)
6
5
7
16kW
Rated
3 4
Water Flow rate (m
Product pressure
drop [m]
(Plate heat ex-
changer)
1.0
1.2
1.9
5 6 7
3
/hr)
Serviceable Head
[m]
5.0
3.8
5.1
8