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FR · ERC 21X user manual · DKRCC.ES.RL0.H3.02/520H9656 · ©Danfoss
Menu code Parameter description
r96
Pull-down duration
Maximum duration of the pull-down mode.
r97
Pull-down limit temperature
A safety feature; the lowest temperature allowed during pull-down.
A--
Alarm
A03
Delay for temperature alarm during normal conditions
If the upper or the lower alarm limit values are exceeded, a timer function will commence.
The alarm will not become active until the set time delay has been passed.
A12
Delay for temperature alarm during pull-down/start-up/defrost
This time delay is used during start-up, during defrost, during pull-down. There will be change-over to the
normal alarm time delay “A03” when the temperature falls within the alarm limits.
A13
High temperature alarm limit
If the cabinet temperature stays above this limit for the time mentioned by the alarm delay, high temperature
alarm is raised.
A14
Low temperature alarm limit
If the cabinet temperature stays below this limit for the time mentioned by the alarm delay, low temperature
alarm is raised.
A27
DI1 delay
If “DI1” is configured as a door open alarm or as an external alarm, this delay is used to raise the respective
alarm.
A28
DI2 delay
If “DI2” is configured as a door open alarm or as an external alarm, this delay is used to raise the respective
alarm.
A37
Condenser high alarm limit
If the condenser temperature reaches above this limit, condenser alarm is raised immediately and no action is
taken. The alarm is zeroset if temperature falls 5 K below the set temperature.
A54
Condenser high block limit
If the condenser temperature continues to increase above the “A37” limit and reaches this temperature limit,
condenser block alarm is raised and compressor is stopped. It is restricted to starting again until alarm is reset
manually. Manual reset of condenser block alarm can be performed in two ways:
- Power controller OFF and power ON controller again.
- Switch controller OFF and ON again via main switch or front button.
A72
Voltage protection enable
This parameter is to enable and disable the voltage protection feature, which protects compressor from
adverse line voltage conditions.
A73
Minimum cut-in voltage
When the compressor is due to start, the voltage of the power supply will be checked and the compressor will
only be allowed to start if it is at least the value given in this parameter.
A74
Minimum cut-out voltage
When the compressor is running, it will be switched OFF if the voltage goes below that given in this parameter.
A75
Maximum voltage
When the compressor is running, it will be switched OFF if the voltage exceeds that given in this parameter.
If the compressor is already stopped, it will remain switched OFF.
d--
Defrost
d01
Defrost method
Here you set whether defrost is to be accomplished by electric, Hot gas or natural method.
no=none
nAt=natural
EL=electrical
gAS=gas
d02
Defrost stop temperature
This parameter defines at what temperature the defrost cycle will stop.
The temperature is given by the evaporator sensor or by the cabinet temperature sensor as defined in menu
code “d10”.
d03
Defrost interval
Defines the time period between the start of two defrost cycles. In case of power failure elapsed time is stored
in the memory and next defrost will happen after completing the defined time interval.
