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RS8HP102 © Danfoss 2018-09
AK-CC 750A
A night blind is open when the appliance cleaning function is
activated.
To ensure the correct position of the night blind the fans can be
switched off in the period during which the night blinds roll down.
Forced closing
The AKV (stepper) valves can be closed with an external signal
(the “Inject ON signal”). The function must be used in connection
with the compressor’s safety circuit, so that there will be no injec-
tion of liquid into the evaporator when the compressor is stopped
by the safety controls. (However not at low pressure – LP).
The signal can also be received from the DI-input or be received
via the data communication.
During a forced closing the fans can be defined to be stopped or
in operation.
Defrosting can also be permitted or omitted during this period.
If defrosting has been requested within 10 minutes of the end of
forced closing, defrosting will restart the moment forced closing
ends.
Alarm relay
If the controller is to give alarm at a relay output, the relay must be
defined.
A setting determines when the relay is activated:
- Only for alarms with “high” priority
- For alarms with “low” and “medium” priority
- For alarms with “low”, “medium” and “high” priority.
The controller can receive a signal from a leak detector. This signal
will not activate the alarm relay; but the alarm will be shown on
any displays that are connected.
Start/stop of regulation (main switch)
A software setting is used for starting and stopping the regulating
function.
ON = normal regulating function
OFF = Regulation stopped. All outputs will be set in standby
mode. All alarms are stopped. An alarm can however be transmit-
ted to the effect that regulation has stopped.
The function applies to all sections.
You can also define an external switch for start/stop of the regula-
tion.
If an external switch is defined regulation will only be carried out
when both switches are in position ”ON”.
