EVCO EVB1256N9 - Manual (Page 30)

EVCO S.p.A. EVBOX1 | Installation guide ver. 1.2 | Code 144BOX1E124
page 30 of 88
8 “ENERGY SAVING” FUNCTION
8.1 Preliminary notes
Once the time you have set with parameter i10 has passed,
without activations of the door micro switch input (after the
room temperature has reached the work set point) the
“energy saving” function is activated (until the input is
activated again).
During the “energy saving” function, the work set point is
increased by the temperature established with parameter r4
and the evaporator fan is turned on cyclically, provided that
the F0 parameter is set to 1, 2, 3 or 4 (parameter F13
establishes the duration of fan switch off and parameter F14
that of switch on).
It is also possible to activate the “energy saving” function in
remote mode through the digital inputs (with effect only on
the compressor).
9 “CPT” FUNCTION
(CALCULATED PRODUCT
TEMPERATURE)
9.1 Preliminary notes
If parameter P4 is set at 4, the temperature associated to the
regulation will mainly depend on the temperature detected by
the inlet air probe and that detected by the air outlet probe,
herein called CPT temperature (Calculated Product
Temperature); the room temperature probe shall operate as
an air inlet temperature probe and the auxiliary temperature
probe as an air outlet temperature probe.
The formula for the calculation of the CPT temperature is:
CPT temperature = {[(value established with parameter P7) x
(temperature detected by the inlet air probe)] : 100} +
{[(100 - value established with parameter P7) x (temperature
detected by the outlet air probe)] : 100}.
10 “HACCP” FUNCTION
10.1 Preliminary notes
The device can memorise the following HACCP alarms:
- minimum temperature alarm (code “AL”)
- maximum temperature alarm (code “AH”)
- door micro switch input alarm (code “id”)
- power supply cut-off alarm (code “PF”; only in the
models with clock).
The device can memorise up to 9 alarms, after which the
oldest alarm is overwritten.
The device supplies the following information for every alarm:
- the critical value
- the date and time at which the alarm occurs (only
in the models with clock)
- the duration of the alarm (from 1 min to 99 hours
and 59 min, partial if the alarm is in progress).
The following table shows the correspondence between the
alarm codes and the relevant critical values.
CODE CRITICAL VALUE
AL
the minimum room temperature or the minimum
CPT temperature during the alarm
AH
the maximum room temperature or the
maximum CPT temperature during the alarm
id
the maximum room temperature or maximum
CPT temperature during any alarm of this type;
see also parameter i4
PF
the room temperature or the CPT temperature
when power supply is restored; see also
parameters A10 and A12
Models without clock update the information regarding the
alarms provided the critical value of the new alarm is more
critical than that stored or provided the information has
already been displayed.
If the device is switched off, no alarms will be stored.
The “HACCP” LED provides information regarding the storage
status of the alarms; see paragraph “Signals”.