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15.
Commissioning
15.1
Initial fi lling of the system:
•
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.
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
•
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.
RIVA PLUS COMBI MANUAL
15.2
Lighting the boiler:
WARNINGS
BOILER IS PLACED IN OPERATION
A
Figure 15.3
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.
B
C
D E
35
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