Enofrigo City line, Instruction Manual

Page: 35 / 74

12.3.4 DESCRIPTION OF THE INPUTS:

Standard Carel NTC (10Kohm at 25°C) for temperature sensors with range of measurement –50°C
+90°C , 0.1K resolution

Minimum/maximum water level sensor

PST “Small” or “Large” terminal connection
food warmer control panel manual, rev. 1.4 of 24.11.2008
12.3.5 CONNECTIONS :
With 400/3/50-60 Hz power supply remove the jumpers between terminals R-S-T on the power terminal block.
With 230/1/50-60 Hz power supply check that the jumpers are fitted between terminals R-S-T on the power
terminal
block
Phase contactor (2 T1) “U” and terminal N first 230V heater
Phase contactor(4 T2) “V” and terminal N second 230V heater
Phase contactor (6 T3) “W” and terminal N third 230V heater
Terminal 1-2 output for 230V water fill solenoid valve
Terminal and/or cable 3-4 output for 230V light
Terminal 5-6 NTC sensor
Terminal 7 water level sensor (earth)
Terminal 8 water level sensor (min)
Terminal 9 water level sensor (max)
HARDWARE ARCHITECTURE
12.4.1 CONTROL KEYPAD:
- Button 1: not used
- Button 2: pressed for 1 second, activates/deactivates the light output
...LED on steady – light on
- Button 3: pressed for 5 seconds, unit on/off
...LED on steady – unit on
- Button 4: not used
- Button 5: not used
- Button 6: parameter setting, moves from one parameter to the next
...LED on steady – heaters on
Flashing - heater activation request (time)
- Button 7: pressed for 5sec. active the output of water fill
parameter setting, moves from one parameter to the next
...LED on steady – water fill on
Flashing - water fill activation request (time)
- Button 8: pressed for 1 second, displays and/or sets the set point
Mutes the audible and visual alarm
- Pressed for 5 seconds with no active alarms, accesses the type (F) frequent parameters menu.
- Pressed when powering up the controller, together with 7, restores the parameters (reset parameters).
...LED on steady - active alarm.
Perform this operation only in the event of emergencies, and then with the optional key or manually set the unit
configuration data again.
food warmer control panel manual, rev. 1.4 of 24.11.2008.
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