Installation manual

SAVIO PLUS COMBI MANUAL 35
Commissioning15.
Initial lling of the system:15.1
Remove the front panel of the case.•
Unscrew the cap on the automatic air •
purger valve 3 (Fig 15.1) one full turn and
leave open permanently.
Figure 15.1
Open the installer supplied automatic fi ll •
valve between the cold water inlet and
Central Heating System (See 28 on pip-
ing diagrams in previous section).
Open each radiator air vent starting at the •
lower point and close it only when clear
water, free of bubbles, fl ows out.
Purge the air from the pump by unscrewing •
the pump plug 2 (Fig. 15.2); release the pump
by turning the rotor in the direction indicated
by the arrow on the information plate.
Figure 15.2
Close the pump plug.•
Continue fi lling the system. The actual •
reading should ideally be 1.3 bar (19 psi)
and not less than 0.3 bar (4.3 psi).
Close all air release valves on the c.h. •
system.
Inspect the boiler and the system for water •
soundness and remedy any leaks discovered.
Cold fl ush the system to remove any loose •
particles and any system debris before
starting the boiler for the fi rst time.
Reassemble the front panel of the case.•
Return fi ll valve to automatic position. •
Lighting the boiler:15.2
Note: If external controls are fi tted (e.g. room thermostat) ensure they “call for heat”.
THE BOILER AND ITS GAS CONNECTION MUST BE LEAK TESTED BEFORE THE
BOILER IS PLACED IN OPERATION
Turn on the electricity supply to the boiler, switching on the circuit breaker switch. The ap-•
pliance operation light A will fl ash every 4 seconds.
Turn the function selector B as in Fig. 15.3. The appliance operation light A will fl ash every •
2 seconds.
Figure 15.3
AB CDE
WARNINGS