FDG ELECTRONIC CONTROL UNIT OPERATION
1. SWITCHING ON/OFF
The Control unit is switched on/off by holding down the button P1 (ON/OFF)
-The OFF status is signalled by the OFF LED lighting up
2. ALARM FUNCTION
If the temperature detected by the PROBE exceeds the alarm Thermostat value A01(90°C):
-the audible and visual warning device switches on
-SILENCE function: the buzzer can be switched off for 5 minutes by pressing any button
-when the 5 minutes have elapsed, if the alarm persists, the audible warning device goes off once again.
3. ANTI-FREEZE FUNCTION
If the temperature detected by the PROBE is below the Anti-freeze
Thermostat value A03 (6°C):
-the thermo-cooker PUMP switches on
-the display reads ICE
4. STANDBY FUNCTION
If the control unit is OFF in ALARM or ANTI-FREEZE condition:
-the control unit automatically switches to the ON status
TEMPERATURE PROBE
This measures and controls the water temperature in the
Thermo-cooker. It consists of a capsule Ø 6 x 30 mm in
Santoprene thermoplastic rubber and a cable diameter Ø 3.2
mm, length 2 m, bipolar (2 x 0.30 mm²).
There is an NTC 10 kΩ ± 1% at 25°C thermoresistive
sensor inside the capsule.
The temperature probe has a temperature range of
-50-120 °C, a response time of approximately 6 seconds,
electric insulation > 20 MΩ at 500 Vac, protection rating
IP68.
5. PUMP ANTI-BLOCK FUNCTION
If the PUMP remains idle for an amount of time longer than the
Anti-block Timer T01 (168 hours, equal to about one week):
-the PUMP switches on for T02 seconds (30 sec)
-the display reads bLP
This function is also activated in STANDBY
6. PUMP TEST FUNCTION
Holding down the button P3
-switches on the PUMP for the whole time the button is pressed
-the display reads tSt
7. LEVEL SWITCH FUNCTION
The level switch detects whether the water in the tank drops below the
minimum level:
-the LED lights up
8. OUTPUTS OPERATION
If the flow switch detects that domestic hot water is being drawn, the PUMP stops:
-the PUMP LED flashes and a flashing dash appears on the display.
It must be used inside a Ø1/2" probe
holder, supplied with control unit,
emerged in the delivery water of the
Thermo-cooker or Boiler. If needed, the
Probe-Hydraulic Kit connection can be
lengthened, to a Max of 15 m, using a
double-wire cable (2 x 0.50 mm²).
This function is not active if the probe temperature exceeds the value of the safety thermostat A02.
If the temperature of the probe exceeds the AUX thermostat value, the AUX output is activated.
If the temperature of the probe exceeds the VALV thermostat value, the VALV output is activated.
9. MAIN MENU
Setting of operating thermostats of controlled outputs:
-PUMP thermostat to control the operation of the system pump
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