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13
of
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OPERATION (cont.)
2. MAIN FUNCTIONS
2.1 HOW TO SEE THE SET POINT
1. Push and immediately release the
SET
key, the set point will be showed;
2. Push and immediately release the
SET
key or wait about 5s to return to normal
visualization.
2.2 HOW TO CHANGE THE SETPOINT
1. Push the SET key for more than 2 seconds to change the Set point value;
2. The value of the set point will be displayed and the “°C” or “°F” LED starts blinking;
3. To change the Set value push the
or
arrows.
4. To memorize the new set point value push the SET key again or wait 10s.
2.3 HOW TO START A MANUAL DEFFROST
Push the
DEF
key for more than 2 seconds and a manual defrost will start
2.4 TO LOCK THE KEYBOARD
1. Keep pressed for more than 3s the
and
keys.
2. The “
OF
” message will be displayed and the keyboard will be locked. If a key is pressed more
than 3s the “OF” message will be displayed.
2.5 TO UNLOCK THE KEYBOARD
Keep pressed together for more than 3s the
and
keys till the “
on
”
message will be displayed.
3. ALARM SIGNALLING
3.1. ALARM RECOVERY
Probe alarms
P1
” and “
P2
” start some seconds after the fault in the related probe; they automatically
stop some seconds after the probe restarts normal operation. Check connections before replacing the
probe. Temperature alarms “
HA
” and “
LA
” automatically stop as soon as the temperature returns to normal
values.
Alarms “
EA
” and “
CA”
(with iF=bL) recover as soon as the digital input is disabled.
