Commissioning And Adjusting; Preparations; Balance Temperature; Filling And Venting - Nibe F2120 Installer Manual

Commissioning and adjusting

Preparations

Caution
Check the miniature circuit-breaker (FC1). It could
have tripped during transport.
NOTE
Do not start F2120 if there is a risk that the water
in the system has frozen.
COMPRESSOR HEATER
F2120 is equipped with two compressor heaters that heat
the compressor before start-up and when the compressor
is cold.
The compressor heater (EB10) must have been active for at
least 3 hours before compressor operation can be initiated.
This is done by connecting control voltage. F2120 permits
compressor start after the compressor has been warmed
up. This can take up to 3 hours.
NOTE
The compressor heater must have been active for
approx. 3 hours before the first start, see section

"Start-up and inspection".

Balance temperature

The balance temperature is the outdoor temperature when
the heat pump's stated output is equal to the building's
output requirement. This means that the heat pump covers
the whole building's output requirement down to this tem-
perature.
NIBE F2120

Filling and venting

1. Fill the heating medium system to the necessary pres-
sure.
2. Vent the system using the venting nipple on the flex
hose (enclosed) and possibly the circulation pump.
Start-up and inspection
1. Communication cable must be connected.
2. If cooling operation with F2120 is wanted, DIP switch S1
position 4 must be changed according to the description
in section "Cooling".
3. Turn the isolator switch on.
4. Ensure that the F2120 is connected to the power source.
5. Check that fuse (FC1) is on.
6. Reinstall the removed panels and cover.
7. After the power to F2120 has been switched on and
there is a compressor demand from the indoor mod-
ule/control module, the compressor starts once it has
warmed up, after max 180 minutes.
The length of this time delay depends on whether the
compressor has been warmed up previously. See the
instructions in section "Preparations".
8. Adjust the charge flow according to size. Also see sec-
tion "Adjustment, charge flow".
9. Adjust menu settings via the indoor module/control
module as necessary.
10. Fill in "Inspection of the installation", in section "Import-
ant information".
11. Remove the protective film from the cover on F2120.
NOTE
The live external control must be taken into con-
sideration when connecting.
Chapter 6 | Commissioning and adjusting
QM20
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