Water Volume And Water Pump Capacity - LG THERMA V HN1639 Installation Manual

Installation of Indoor Unit
Water Volume and Pump Capacity
has different internal water pump according to the product capacity.
The water pump is three speed-adjustable (Maximum / Medium / Minimum), so it may be required to
change default water pump speed in case of noise by water flow. In most case, however, it is
strongly recommended to set speed as Maximum.
Water pump speed
To secure enough water flow rate, do not set water pump speed as 'Min.' It can lead unexpected flow
rate error CH14.
Product Heating Capacity : 9kW
8.0
7.5
7.0
6.5
6.0
5.5
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
Product Heating Capacity : 12kW,14kW,16kW
8.0
7.5
7.0
6.5
6.0
5.5
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
Max. : high speed setting
Med. : low speed setting
Warning : Selecting a water flowrate outside the curves can cause damage to or malfunction of the unit.
: Operation cutoff range
34 Air-to-Water Heat Pump
12
0 10 20 30
15
0 10 20 30
Med.
40 50 60 70
Water Flowrate(l/min)
Med.
40 50 60 70
Water Flowrate(l/min)
Max.
80 90 100
Max.
80 90 100
110
110