Danfoss erc 112 User Manual Download Page 18

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Pdd

Min. 0 min
Max. 960 min
Default 240 min

Pull down delay

Normally, it is not necessary or desirable to sound an alarm during a pull
down (the initial phase of reaching the desired temperature).

This

parameter prevents the high temperature alarm "

HAt

" sounding during pull down

and after a defrost for the number of minutes set for the parameter.
NOTE: it does not apply to the low temperature alarm "

LAt

dod

Min. 0 min
Max. 60 min
Default 2 min

Door Open delay

It is possible to indicate to customers that a door has accidentally been
left open.

This parameter sets the delay in minutes before the alarm sounds.

This is useful in environments where customers/users may hold the door
open while making their selection. If the door is closed again before
the set number of minutes is reached, the alarm does not sound.
NOTE: a door sensor is required if this parameter is to be activated.

uAL

Min. no
Max. yes
Default no

Voltage alarm

": no voltage alarm.

yES

": voltage alarm activated.

LEA

Min. 0 hour
Max. 96 hour
Default 0 hour

Leakage alarm

Leakage detection for compressor protection. If compressor operates for more than the set time, an alarm will be triggered.
"

": disable

Abd

Min. 0 min
Max. 999 min
Default 0 min

Alarm Buzzer Duration

The alarm sounds for 10 seconds, followed by silence for 50 seconds.
One alarm sequence therefore lasts 60 seconds. These values cannot be
changed. This parameter determines how long in minutes an audible
alarm will continue while there is still a reason to have an alarm.
If set to 999, the alarm will continue to sound until the reason for the
alarm is cleared – for example the temperature has dropped enough or
the door closed. In some cases, it may be necessary for a user or technician
to take action in order to clear the alarm. If set to 0, the alarm will never
sound.

ACA

Min. no
Max. yes
Default yes

Auto Clear of Alarm/Error/ACA

If this parameter is set to "

The alarm status will not disappear automatically even if the condition
which caused the alarm is no longer valid or present.
If set to "

yES

As soon as the condition which caused the alarm is no longer valid or
present, the alarm status will automatically change back to inactive.
There will be no trace of the alarm having occurred.
In general, glass door merchandise applications will be set to "

yES

" and

commercial fridges and freezers set to "

For example, if the temperature goes too high for a period there may
be food safety considerations in a freezer containing food but not in a
fridge with cold drinks.

AHC

Automatic Heater settings

Automatic Heater Control applies reverse cooling mode
(heating) to your refrigeration appliance where the ambient
temperature can go below the set point.
A) It will use the Defrost output to control the heating

function when needed. Defrost operations will operate as
normal.

B) Automatic heater will only operate when using Electric

Defrost. It is disabled with Natural Defrost or Hot Gas
Defrost.

AuH

Min. no
Max. yes
Default no

Automatic Heater Mode Enable

This setting is normally set to "

When set to "

yES

", parameters "

End

", "AHS" and "AHD" apply.