1652H4A02 Ed.09
23
Defrost of 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 2 as a 2nd evaporator probe (
l20
=8). In the event of an error in the 2nd
evaporator probe, defrost completes once the time defined in
d1
has elapsed.
Electric defrosting
This requires configuration of relay AUX 2 as 2nd evaporator defrost (
o10
=5).
Defrost begins simultaneously in both evaporators. When the probe 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 probe 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 probes reach the
temperature defined in
d4
. Drip time subsequently begins.
