51
ENG
mpxone +0300086EN rel. 2.2 - 13.11.2023
Functions
Caution:
for correct activation of the low temperature alarms, set the parameters as follows:
• AA = outlet probe;
• AA2 = intake probe.
Notice:
1. the continuous cycle cannot be activated if:
– the duration of the continuous cycle is set to 0 (cc=0);
– the measurements of the probes defined by AA and AA2 have exceeded their respective thresholds AL, AL2;
– the device is OFF.
2. The continuous cycle remains in standby if:
– the compressor protection times are set (c1, c2, c3);
– the immediate or delayed alarm from external digital input delays activation of the solenoid valve;
– defrost, dripping, post-dripping are running;
– the door is open. When the door is opened, the continuous cycle is interrupted. It restarts for the remaining time when
the door is closed.
3. The continuous cycle ends:
– when deactivating the direct function from the user terminal (see “Direct functions”);
– when reaching the low temperature threshold (AL or AL2 in double thermostat mode), whichever is reached first;
– at the end of the time cc;
– when the controller is switched off from the supervisor (logical OFF);
– from the supervisor.
Notice: if a second ON/OFF compressor is managed with an activation delay, during continuous cycle both compressors will
start based on the set times.
Continuous cycle with shared control status
This operating mode is highlighted on the main user interface by the corresponding icons on steady; the secondary controllers
ignore the main control mode and manage the display as normal (solenoid icon on during the cooling request and off when
there is no request).
Defrost priority over continuous cycle
Code Description Def Min Max UOM User User terminal
c7 Defrost priority over continuous cycle 0=No, 1=Yes 001- MNO
If c7=0 the defrost and continuous cycle are not mutually interruptible (same priority): any defrost or continuous cycle request
remains pending if activated when running the other procedure. If c7=1 the defrost calls activated when the continuous cycle
is running terminate the latter and activate the defrost.
5.3 Defrosting
Introduction
Parameters td1 to td8 can be used to set up to 8 defrost events based on the controller clock (RTC) and to activate the power
defrost (see the end of the paragraph).
To set parameters td1 to td8, use the supervisor or the “Applica” app.
Code Description Def Min Max UOM User User terminal
td1..8-d Defrost 1 to 8 - day
0 = event disabled
1 to 7 = Monday to Sunday
8 = Monday to Friday
9 = from Monday to Saturday
10 = Saturday & Sunday
11 = every day
0011daySNO
td1..8-hh Defrost 1 to 8 - hours 0 0 23 hours S NO
td1..8-mm Defrost 1 to 8 - minutes 0 0 59 minutes S NO
td1..8-P Defrost 1 to 8 - enable power defrost:
0/1 = normal/power defrost
001- SNO
MPXone can manage different types of defrosts, depending on the setting of parameter d0.
The defrost can end by temperature, in which case the defrost probe Sd must be installed, or by time. In the former case, the
defrost ends when the defrost probe Sd reading exceeds the end defrost value dt1 or the time dP1 has elapsed, in the latter case
when the maximum time dP1 is reached.
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