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12 MAIN MENU
WFN 2101°°ZL°°°°°
12.0 °C
12.5 °C12.5 °C
35.0 °C
40.0 °C40.0 °C
EV
CN
ON
This mask displays:
1. General unit status:
— Current date and time
— Evaporator (EV) input temperature; when it is just below the value relative to
the evaporator input temperature, the icon of the currently active pump will
appear (with the relative number);
— Evaporator (EV) output temperature;
— Condenser inlet temperature (CN);
— Condenser outlet temperature (CN);
— Machine model.
2. The machine operating status:
— ON: machine on
— PUMPDOWN: pumpdown cycle in progress
— OFF BY KEY: machine turned o by the keypad command
— OFF BY DIG. IN.: machine turned o by remote contact
— OFF BY SUPERV.: machine turned o by supervisor
— OFF BY TIME BAND: machine turned o by the timer
— OFF BY ALARM: machine turned o by alarm
— OFF BY SER.OFFL: machine turned o due to failure of adjustment probe from
supervisor
NB: some icons can appear at the bottom of this window, indicating cer-
tain system states:
—
: indicates that the compressor is on;
—
: indicates that the compressor is o;
—
: indicates that the pump is on.
13 ALARM LOG MENU
To display the alarm log menu, press the button .
The menu shows the last 25 alarms that occurred together with some parameters
stored at the moment the alarm occurred.
AL121 16:36 15/09/21
12.5
13.5
074.0
05.0
12.0
03.0
07.0
03.8
T.In T.Out
Band
HP
T.Dis
LP
Set
Af
Warning: The alarm history cannot be reset because the storage to mem-
ory is circular so each new alarm registered overwrites the oldest of the 25
stored to memory.
The parameters are:
— Time and date
— T. In.:
Evaporator inlet temperature
— T. Out.:
Evaporator outlet temperature
— HP:
Condensing pressure
— LP:
Evaporating Pressure
— T. Dis:
Permanent gas temperature
— Set:
Working setpoint used
— Band:
Proportional band
— Af:
Evaporator antifreeze set
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