EVCO EVCLC33DJ2 - Manual (Page 23)

EVCO S.p.A. Vcolor 338 L | Installer manual ver. 2.0 | Code 144VC338LE204
page 23 of 66
6.8 Cooking fumes reduction
The cooking fumes reduction is active until the temperature
detected by the fumes probe reaches the temperature
established with parameter t13 and is turned back on when
the temperature rises above the one established with the
parameter t14 (i.e. "t13 + t14", only if the fumes probe is
enabled, i.e.if parameter P3 is set at 1).
To set the configuration parameters, see paragraph 15.2
“Setting the configuration parameters”.
6.9 Outputs management for
special cleaning cycles
The controller has 4 relay outputs to manage two different
types of cleaning:
- Cleaning cycle with liquid detergent, with no
water recycling;
- Cleaning cycle with tablet detergent, with
water recycling;
- Cleaning cycle disabled.
At the start of every cleaning cycle the room light turns on
automatically, and can be turned off and back on again at any
time with the dedicated switch.
Below is a detailed description of the two types of cleaning:
Cleaning cycle with liquid detergent, with no water
recycling:
There are 4 management relays, each with a different
function:
- K13 Relay: Mains water solenoid valve;
- K12 Relay: Liquid detergent injection pump;
- K11 Relay: Water drain pump;
- K10 Relay: Liquid rinse aid injection pump;
The cleaning cycle goes through 4 linked phases in cascade.
Phase 1 - Precleaning:
The oven temperature is raised to the precleaning level (w0
parameter) If the room temperature is lower, the heating
output will be activated together with the ventilation, while at
the same time closing the air vent.
If the temperature is higher than the set one, the controller
will keep only the ventilation on, the air vent will remain open
and a pop-up message will request the door to be opened in
order to facilitate the cooling of the chamber.
When the temperature lies within the "precleaning w0 -
precleaning activation hysteresis authorisation (w1)"setpoint
range , the air vent closes, the door must be closed (if
previously opened) and the controller will activate the K13
relay (mains water solenoid valve) for w2 minutes.
At the same time, the K11 relay: water drain pump will also be
activated. Ventilation remains active for the whole duration of
the phase, the heating output will keep the set temperature
constant.
At the end of the w2 time, the resistors, ventilation, water
solenoid valve and, after a w16 delay the water drain pump
will be turned off.
Phase 2 -Cleaning:
The cleaning phase starts at the end of the precleaning. After
time F1 (fan deceleration) has elapsed, the K12 (liquid
detergent injection) relay is activated for w4 seconds.
After the w4 time has elapsed, there is a w5 minutes pause to
allow the detergent to act.
After the w5 time has elapsed, the machine starts heating
again, with active ventilation, bringing the chamber up to the
cleaning temperature (parameter w3); after the t11 time has
elapsed, the controller will start injecting steam in the
chamber (with 100% setting) for a total time of w6 minutes.
After the w6 time has elapsed, the controller commands a
brief rinse of the chamber by activating the K13 (mains water
solenoid valve) relay for w7 seconds.
The K11 and K13 relays are activated for 32 seconds.
Phase 2 of the cleaning cycle can be repeated:
- 1 time (soft cleaning)
- 2 times (medium cleaning)
- 3 times (hard cleaning)
according to the settings input by the final user during the
cycle selection/setting phase.
Phase 3 - Rinse aid:
The "Rinse aid" phase starts after the end of the cleaning
cycle.
The K10 relay: "liquid rinse aid injection pump" is activated
for w9 seconds, followed by a pause of w10 seconds to allow
the rinse aid to become effective.
After the w10 time has elapsed, the machine starts heating
again, with active ventilation, bringing the chamber up to the
rinse aid action temperature (parameter w8); after the t11
time has elapsed, the controller will start injecting steam into
the chamber (with 100% setting) for a total time of w11
minutes.