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Remote defrost
This function allows defrost of the unit to be activated using an external key, connecting it to one of the digital inputs
that must be configured as remote defrost (I10 or I20=5).
Defrost locking
This prevents defrost starting at unusual points by means of an external switch, which may be useful for ensuring that
the installation's load does not excessively increase, exceeding the permitted limits.
The external switch must be connected to one of the digital inputs, which should be configured as “Defrost locking”
(I10 or I20=6).
Defrosting in a second evaporator
This function allows for defrost to be controlled in a second evaporator, provided that defrost is by electric heat, by
air or is static. The same type of defrost should be used for the first and second evaporators.
This requires configuration of input D2/S4 as a 2
nd
evaporator sensor (l120=10). In the event of an error in the 2
nd
evaporator sensor, defrost completes once the time defined in d1 has elapsed.
Electric defrosting
This requires configuration of the AUX 2 relay as 2
nd
evaporator defrost (o10=4). Defrost begins simultaneously
in both evaporators. When the sensor of evaporator 1 reaches the temperature defined in d4, the DEF relay
deactivates, completing defrost of evaporator 1. Defrost of evaporator 2 is completed when the evaporator 2
sensor reaches the temperature defined in d4. Drip time begins when both defrosts are complete.
Defrost by air
The fans of both evaporators are connected in parallel to the FAN relay. Defrost begins simultaneously in both
evaporators and does not complete until both sensors reach the temperature defined in d4. Drip time subse-
quently begins.
Static defrost
Defrost begins simultaneously in both evaporators and does not complete until both probes reach the temper-
ature defined in d4. Drip time subsequently begins.
Other parameters
Using parameter d5, you can configure whether the unit performs a defrost (d5=1) or not (d5=0) when it receives
power (first start-up or after a power supply failure). Should the option YES (d5=1) be selected, defrost will begin
once the delay time defined in d6 has elapsed.
Using parameter d8, we define the time tally established in d0, choosing between total time elapsed (d8=0) or the
sum of compressor operation time (d8=1).
REMARK:
If parameter d1 is configured to 0, no defrosts are performed.
Summary of Contents for AKO-16526
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