Evco EVJ 800 series - Fish Sanitation

EVCO S.p.A. EVJ800 | Installer manual ver. 1.0 | Code 144J800E104
page 20 of 48
Defrosting can also be carried out automatically during conservation or pre-cooling
at time intervals set by parameter
d0, provided that this value is not set to 0.
Regardless of how they have been started up, defrosting cycles are managed by the following parameters.
d0 interval between two consecutive defrosts
d1 type of defrost
d2 evaporator temperature to end defrost (can be set if P4 is set to 1)
d3 defrost duration
d4 defrost start-up at the beginning of a blast chilling/blast freezing cycle
d5 defrost start-up delay from the start of conservation after blast chilling/blast freezing
d7 drip duration
d15 minimum compressor switch-on duration for starting hot gas defrost
d16 pre-drip duration (can be set if hot gas defrost is selected)
The type of defrost can be selected by parameter d1. There are four ways of performing a defrost cycle.
d1=0 electric defrost
d1=1 hot gas defrost
d1=2 air defrost
d1=3 air defrost with door open
Defrosting is activated automatically at the start of a blast chilling/blast freezing cycle if d4=1. Regardless of the
parameter d4 value, automatic defrost is activated with a delay as compared to the beginning of the conservation
phase set by parameter d5.
If the evaporator probe is present when a defrost cycle is to be activated, this only starts if the temperature indicated
by the evaporator probe is lower than the value of parameter d2.
Defrosting finishes when the evaporator temperature is above the value of parameter d2 or if the temperature has not
been reached within the required time set by parameter d3.
When pre-cooling is in progress, a defrosting cycle cannot be started.
6.6 Fish sanitation
The fish sanitation cycle is only available with the use of a needle probe.
Access the SPECIAL CYCLES menu using the key and select FISH SANITATION: at this point the start up
screen will appear and the next time is pressed the cycle will start.
This special cycle consists of the following phases:
- blast chilling with the cabinet setpoint set by parameter r19 and with the product temperature setpoint set by
parameter r20;
- holding for the time period set by parameter r21 and the cabinet setpoint given by r20;
- conservation with the cabinet setpoint given by r22.