Nibe F2030, Installer Manual, Page: 21 / 56

Connecting external control voltage
NOTE
Mark up any junction boxes with warnings for
external voltage.
When connecting external control voltage with separ-
ate earth-fault breaker, remove the straps between
terminal blocks X1:L1 and X1:L and between terminal
blocks X1:N andX1:0 (see image).
Control voltage (230V 50 Hz) is connected to terminal
blocks X1:L and X1:0 (as illustrated).
L1
-X1
L2
L3
N
L
0
L
0
F2030 Externt
X1
F2030 External
At connection of external control voltage you must
connect a switch (for tariff control) to connection X5:5
and X5:6 (compressor blocking) to prevent MP alarm.
8
6
7
5
4
2
3
1
X5
External F2030
Compressor blocking
Charge pump
To let F2030 control the charge pump (GP12), connect
it to the terminal block X3:1(PE), 3(L) and 4(N). Pump
activity is dependent on the status of F2030, heat-
ing/hot water requirement and the ambient temperat-
ure. Pump exercising is handled by F2030.
With potential free connection of the circulation pump
you replace the bracket with separate voltage supply
for X3:2(L).
Anti-freeze function
At temperatures below +2 °C the charger pump runs
periodically, to prevent the water from freezing in the
charge circuit. The function also protects against excess
temperatures in the charge circuit. This function applies
on the condition that F2030 is powered.
NOTE
There is a risk of freezing when the charge
pump is connected to the terminal block - X3
and F2030 is not powered.
5
6
7
4
2
3
1
N
L
PE
External F2030
X3 GP12
19 Chapter 5 | Electrical connections NIBE™ F2030