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2.2.2.
BOILER ACTIVE
Activate the boiler by setting parameter PR08=ON and connecting probe I3 Optional (L= 2 metres) as described in Chapter 5.
The boiler enters the request status with the device ON until the temperature detected by probe I3 reaches the SET BOILER MAX=60°C
(PR09) value, at which point the request is fulfilled. The boiler returns to the request status when the temperature detected by probe I3
drops below the SET BOILER MIN=30°C (PR10) value. (See diagrams
2.2.3.
PUFFER ACTIVE
Activate the puffer by setting parameter PR11=ON and connecting probe I2 Optional (L= 2 metres) as described in Chapter 5.
The puffer enters request status with the device ON until the difference between the temperature detected by I1 and that detected by probe
I2 is greater than the DT ON=7°C (PR12) value. When the same difference drops below the DT OFF=5°C (PR13) value, the puffer exits
from the request status. (See diagrams
2.2.4.
BOILER AND PUFFER ACTIVE
When both the boiler and the puffer are active, the parameters of point
gives priority to the boiler's request; once complete, it responds to the puffer's request. (See diagrams
2.3.
ELECTRIC CONNECTION
See Chapter DISPLAY CONNECTION.
The control unit and the plant must be installed and connected by authorized personnel according to the standards in force.
All operations must be performed with mains power disconnected.
Connect the feeding cable of the switchboard with an electronic bipolar switch respecting at least a 3 mm distance between the contacts.
Power supply 230V~ 50 / 60 Hz, it is necessary to provide for the correct connection to the grounding plant.
WARNING: The control unit must be connected to the mains with a differential line cut-off switch according to the regulations in force.
Correct operation of the appliance is only guaranteed for pumps and valves approved by La Nordica. La Nordica is not liable for any
improper use of the appliance.
WARNING: In any case, the power cable has to be replaced by authorised personnel ONLY (entitled by La Nordica) : authorised
dealers and/or fitter.
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6092000 - IT - EN - DE - FR
5
and 6).
COMPONENTI ACCESSORI PER TERMOPRODOTTI
3
and 4).
2.2.2
2.2.3
and
remain active. Via the 3-way valve, the controller
7
and 8).
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