Nibe F2120 - Saving Tips and Power Consumption

Relay test
The relay test is solely for troubleshooting base boards
or components in the cooling circuit. The function is
controlled via a dip switch.
The dip switches are entered at start-up and therefore
have to be adjusted when the installation is switched
off.
By setting switch S2:1 in position ON, all operation is
blocked and all relays are set in turn in position ON for
10 seconds followed by 1 second in OFF.
The function is stopped when S2:1 is entered as OFF
when starting the installation. The function requires
software version 447 or higher in F2120.
Default settingOutputFunctionRelayDIP
S2:
OFFAA2-X8:1-2QN2K11
AA2-X8:4-5EB10K2
AA2-X8:7-8QN4K3
AA2-X8:9KVR10K4
Draining cooling circuit
This function must be used if the cooling circuit needs
to be drained. It opens valves that are normally closed
in order to facilitate draining of the entire cooling circuit.
The function is controlled by setting switch S2:2 in posi-
tion ON. The compressor is switched off and blocked in
this position.
QN1 and QN34 is opened fully and QN4 is opened. The
dip switches are entered at start-up and therefore have
to be adjusted when the installation is switched off.
The function is stopped when S2:2 is entered as OFF
when starting the installation. The function requires
software version 447 or higher in F2120.
Default settingOutputFunctionRelayDIP
S2:
OFFAA2-X27QN1Step2
AA2-X28QN34Step
AA2-X8:7-8QN4K3
FunctionDIP S2:
No function3 and 4
ResetS3
Base board’s contacts
PRESS
1
PULL
LEK
2
3
Pull up!
Push down!
1 2 3
17Chapter 4 | Component descriptionF2120