Danfoss ERC 102 User Manual

37
Pull Down Cycling / PCy
This is the duration in minutes of the compressor cycling at the reduced set point
temperature. Once the desired Pull Down Limit Temperature PLt has been reached
during Pulldown, the compressor will continue to cycle on / off for the duration of
PCy. At the end of the period defined by PCy, the Set Point temperature will return
to normal and Pulldown will cease.
Pull Down Initiate Temperature / Pit
This parameter indicates the temperature which causes a pull down to start. If the
temperature measured inside the cabinet exceeds this value for longer than one
hour, then pull down will start. The compressor will have already cut-in, so the only
effect is to stop defrost cycles until the desired temperature is reached. The period
of one hour is fixed and cannot be altered.
Pull Down Defrost Interval / Pdi
Even though most applications do not need Defrost during Pull Down, an extended
defrost during pull down can be applied. This is the time between defrost cycles
during Pull Down. It is measured in hours and can be up to 48 hours. During Pull
Down, this setting overrides the Defrost Interval and Defrost Time settings (see the
Defrost section).
Pull Down Duration / Pdd
You can choose to limit the maximum Pull Down time. Once this time value
(max. 48 hours) is reached, Pull Down will stop regardless of whether the desired
pull-down temperature has been reached.
Pull Down Limit Temperature / PLt
This parameter sets the minimum allowed temperature during pull-down,
In order to protect valuable contents you must always specify the absolute mini-
mum temperature allowed in your application.
For Glass Door Merchandisers 0°C/32°F protects bottles from freezing;
for Commercial Fridges you may opt for a slightly higher temperature (e.g. 2°C)
Danfoss ERC 102
Hold 3 sec: Menu
1 Click: Variable direct function, e.g.ECO/Night mode
1 Click: Variable direct function, e.g. light
Sub function: Up
1 Click: Temperature setpoint
Sub function: Down
Sub function: Back
Sub function: OK
ERC Front and Button Functionallity:
1 Click: Temperature setpoint
Danfoss ERC 102
Hold 3 sec: Menu
1 Click: Variable direct function, e.g.ECO/Night mode
1 Click: Variable direct function, e.g. light
Sub function: Up
1 Click: Temperature setpoint
Sub function: Down
Sub function: Back
Sub function: OK
ERC Front and Button Functionallity:
1 Click: Temperature setpoint
Danfoss ERC 102
Hold 3 sec: Menu
1 Click: Variable direct function, e.g.ECO/Night mode
1 Click: Variable direct function, e.g. light
Sub function: Up
1 Click: Temperature setpoint
Sub function: Down
Sub function: Back
Sub function: OK
ERC Front and Button Functionallity:
1 Click: Temperature setpoint
Danfoss ERC 102
Hold 3 sec: Menu
1 Click: Variable direct function, e.g.ECO/Night mode
1 Click: Variable direct function, e.g. light
Sub function: Up
1 Click: Temperature setpoint
Sub function: Down
Sub function: Back
Sub function: OK
ERC Front and Button Functionallity:
1 Click: Temperature setpoint
Danfoss ERC 102
Hold 3 sec: Menu
1 Click: Variable direct function, e.g.ECO/Night mode
1 Click: Variable direct function, e.g. light
Sub function: Up
1 Click: Temperature setpoint
Sub function: Down
Sub function: Back
Sub function: OK
ERC Front and Button Functionallity:
1 Click: Temperature setpoint
Danfoss ERC 102
Hold 3 sec: Menu
1 Click: Variable direct function, e.g.ECO/Night mode
1 Click: Variable direct function, e.g. light
Sub function: Up
1 Click: Temperature setpoint
Sub function: Down
Sub function: Back
Sub function: OK
ERC Front and Button Functionallity:
1 Click: Temperature setpoint
ERC 102 Reference manual – 7 PARAMETERS
Pull Down Reduction Temperature ∆t / Prt
ERC 102 calculates a lower set-point during Pull Down mode to increase the cool-
ing capacity of your appliance. For each hour the cabinet temperature is above the
Pull down initiate temperature, the set-point is reduced with the value of Prt.

Danfoss ERC 102 Specifications

General

Brand	Danfoss
Model	ERC 102
Category	Controller
Language	English