EVCO EVF818P9 - Manual (Page 30)

EVCO S.p.A. EVF818 | Installer manual ver. 1.0 | Code 144F818E104
page 30 of 76
To display the cabinet work set-point during deep freezing, press and release the BLAST CHILLING, DEEP FREEZING or
the HARD/SOFT key; to restore the normal display, press and release the same key again or do not operate for 60 s.
On expiry of the deep freezing duration, the device automatically passes to storage mode and the buzzer is activated
for the time period established with parameter AA.
Press and release a key to silence the buzzer.
During storage, the 3 digit display shows deep freezing duration, the 4 digit display shows the cabinet temperature
and the LED is on.
Parameter r11 establishes the work set-point during storage.
6.11 Continuous deep freezing
Operate as indicated to start the cycle:
1. Make sure the device is in the "on" status.
2. Make sure that the keyboard is not locked and that no procedure is in progress.
3. Press and release the DEEP FREEZING key: the LED, the LED, the LED and the HARD LED will flash.
4. Press and release the TIME/TEMPERATURE key: the LED flashes and the LED will switch off.
5. Press and release the TIME/TEMPERATURE key again: the 3 digit display will show “inF”.
6.1 The 4 digit display will show the work set-point during deep freezing; this value can also be set via parameter
r8.
6.2 Press and release the UP or DOWN key within 60 s to modify the parameter value:
7. Press and release the START/STOP key: the LED, the LED, the LED and the HARD LED will remain
permanently on and the cycle will be started.
Operate as indicated to stop the cycle:
8. Hold the START/STOP key down for 2 s.
During deep freezing, the 3 digit display shows “inF” and the 4 digit display shows the cabinet cell.
Parameter r8 establishes the work set-point during deep freezing.
To display the cabinet work set-point during deep freezing, press and release the BLAST CHILLING, DEEP FREEZING or
the HARD/SOFT key; to restore the normal display, press and release the same key again or do not operate for 60 s.
6.12 Blast chilling/deep freezing intensity
The device can manage the phase cut speed regulator for EVDFAN1 single phase fans (to be ordered separately); see
paragraph 14.4 “phase cut speed regulator for EVDFAN1 single phase fans”.
The regulator can be used to manage evaporator fan activities with a single analogue control, i.e. via the PWM
analogue output of the device and the regulator phase cut output (the digital output K3 is however activated).
Parameter F0 must be set at 3.
Parameters F18... F22 establish speed 1... 5 of the evaporator speed (intended as a percentage of the maximum
speed), parameter F23 establishes the speed at which the evaporator fan is switched on during post blast chilling
storage and parameter F24 establishes the speed at which the evaporator fan is switched on during post deep freezing
storage (the latter intended as one of the speeds 1... 5).