EVCO EVFTFT618N7U - Manual (Page 29)

EVCO S.p.A. EVFTFT618 | Installer manual ver. 2.2 | Code 144FTFT618E224
Page 29 of 62
9 Regulations
9.1 Pre-cooling
The pre-cooling cycle has the purpose of taking the cabinet to a determined temperature before selecting and performing
a retarder-proofer cycle.
During the pre-cooling cycle, the compressor, condenser fans, the pump-down electrovalve (if enabled) and the
evaporator fan work to reach the temperature established.
Once the pre-cooling temperature has been reached, the buzzer rings intermittently to indicate that the machine is ready
to perform a cycle. The buzzer is silenced by pressing any key or after the time defined by parameter E11.
The pre-cooling cycle continues until the START/STOP key is pressed or until an automatic or manual cycle is started by
the user.
9.2 Temperature regulation
The temperature regulation for all machine phases is with neutral area.
Meaning with a work set-point and a neutral area within which activations of loads set-up for heating or cooling do not
take place.
When the temperature goes above the neutral area value of the cooling differential value, the utilities set-up for cooling
will be activated until the temperature returns within the neutral area value.
In the same way, when the temperature goes below the neutral area value of the heating differential value, the utilities
set-up for heating will be activated until the temperature returns within the neutral area value.
9.2.1 Generating cold
The generation of the cold refers to the cooling circuit installed on the machine.
During a cooling request, the compressor output will be activated along with the pump-down electro valve (if enabled).
The evaporator fan will go in continuous mode or parallel to the compressor on the basis of that established for each
parameters configuration phase and at the speed established for the phase in progress.
Cooling differential
Cooling neutral area
Heating neutral area
Heating differential
cold
hot
(depending on the phase)
(depending on the phase)