Danfoss ERC 102 Reference Manual page 32

32 ERC 102 Reference manual – 7 PARAMETERS
1 Click: Temperature setpoint
Sub function: Up
Defrost Type / dFt
When set to nO, the defrost function is disabled and no automatic defrosting
will occur .
1 Click: Temperature setpoint
When set to EL or nAt, electrical, natural or off-cycle defrosting is used . An ad-
Sub function: Up
ditional setting of Hgd (hot gas defrosting) is available .
1 Click: Temperature setpoint
Sub function: Down
Terminate Temperature / dtt
This parameter defines at what temperature the defrost cycle will stop .
1 Click: Temperature setpoint
The temperature is given by the evaporator sensor or by the cabinet
Sub function: Up
temperature sensor if no evaporator sensor is used .
Defrost reset temperature / drt
The defrost counter is saved and restored at power-up, but if the temperature 1 Click: Temperature setpoint
1 Click: Temperature setpoint
Sub function: Down
sensor, used for defrost, is higher than this value at power-up, it is assumed that
Sub function: Up
the evaporator is free of ice and the defrost counter will be cleared .
Minimum Interval / dii
This parameter can be set to between 0 and 96 hours and defines the minimum
1 Click: Temperature setpoint
Sub function: Down
time period between the start of two defrost cycles . Once the minimum interval
1 Click: Temperature setpoint
has expired, the defrost cycle will start at the following cut-out or once the maxi-
Sub function: Up
mum interval dAi has been reached .
Maximum Interval / dAi
1 Click: Temperature setpoint
1 Click: Temperature setpoint
Sub function: Down
This parameter can be set to between 0 and 96 hours and defines the maximum
Sub function: Up
time period between the start of two defrost cycles .
Minimum Time / dit
This parameter can be set to between 0 and 240 minutes and defines the mini-
mum duration of a defrost cycle . During this period, the ERC 102 will not check 1 Click: Temperature setpoint
Sub function: Down
the temperature . Once the minimum time has expired, the temperature will be
checked and if the Terminate Temperature dtt has been reached, the defrost
1 Click: Temperature setpoint
cycle will end . If dtt has not been reached, defrost will continue until either dtt is
Sub function: Up
reached or the Maximum Time dAt reached, whichever occurs first .
1 Click: Temperature setpoint
Sub function: Down
Maximum Time / dAt
This parameter can be set to between 0 and 240 minutes and defines the maxi-
mum duration of a defrost cycle .
1 Click: Temperature setpoint
The ERC 102 will not allow a maximum time to be entered which is less than the
Sub function: Up
minimum time, or a minimum time which is more than the maximum time .
Drip Off Time / dot
1 Click: Temperature setpoint
This is only used with an electrical heater . This parameter can be set to between
Sub function: Down
0 and 60 minutes and defines how long the delay is between the heater being
switched off and the compressor starting again .
1 Click: Temperature setpoint
Sub function: Down