INSTALLATION
DIRECT CONNECTION
The circulator on the boiler activates if the temperature is over 50°C.
S1 = SAFETY
VALVE
DISCHARGE
VALVE
ANTI-CONDENSATE 55°C
SYSTEM FILLING
Having carried out all the plumbing connections for the boiler, you need to proceed with system
filling. To correctly fill the system, proceed as follows:
• open any shut-off valves;
• open the radiator vents so the air exits without forming bubbles;
• loosen the automatic vent valve plug under the front, upper surface;
(jolly valve see
figure below)
• open the loading valve and start the system very slowly;
• close the radiator vents as soon as the water exits;
• loading pressure must be over 1.5 bar;
• close the loading valve;
• release the air via the radiator vents;
• switch on the boiler for the first time bringing the system to temperature;
• stop the boiler and repeat the operations to bleed the air.
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