Operating instructions

37
912.808.1 - IT
INSTALLATION AND OPERATING MANUAL
Before starting the user module, open the on/off valves on the hydraulic connectors and check the system lling pressure
in the boiler room and distribution columns (< 3 bar).
The centralised plant must have an automatic lling device.
19. FILLING THE SYSTEM
In the rst plant lling operation, vent any air in the system, including the user module. The appliance is tted with an
automatic air vent valve.
20. AIR VENT AND PUMP RESET
20.1 AIR VENT
The user module is tted with a pump reset device (not present in model RP/1) which, if no heat demand (heating and/
or domestic water) is received for 24 consecutive hours, automatically runs the pump for one minute. This function is
operative if the system is powered.
If, however, the pump/s need/s to be reset after a period of inactivity or during initial starting, simply remove the cap
screwed onto the shaft, insert a screwdriver and turn the rotor a few times in order to reset it and allow it to start. Collect
the water owing from the pump shaft.
20 .2 PUMP RESET (MODELS: RP/1 – RSP - R2Z – RS2Z)
START-UP AND OPERATING INSTRUCTIONS