Nibe VPB 200N, Installer Manual

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Adjustment, charge flow FIGHTER 2015
Adjusting the temperature difference ( T) between the
heat pump's supply and return temperature is important
to maintain optimal operational economy.
The charge flow can be adjusted using the heat pump's
supply and return temperatures.
The difference between channel T2 (flow temperature))
and channel T3 (return temperature) is adjusted using
the circulation pump and control valve.
Adjustment is made when the flow temperature is approx.
45 ºC and at stable operation, 5 minutes after start-up
or 5 minutes after defrost.
30 35
16,0
17,0
18,0
-20 -15 -10 -5 0 5 10 15 20 25
2,0
3,0
4,0
5,0
6,0
7,0
8,0
9,0
10,0
11,0
12,0
13,0
14,0
15,0
Δ
T (°C)
Outdoor temperature ( C)
Adjusting the charge flow for VPB 200N
Charge flow is balanced so that it is within the grey area.
15 Chapter 6 | Commissioning and adjusting VPB 200N