Installation manual

40 RIVA PLUS COMBI MANUAL

15. Commissioning

15.1 Initial lling of the system:

• Remove the front panel of the case.

• Lift 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 ll

valve between the cold water inlet and

Central Heating System.

• Open each radiator air vent starting at the

lower point and close it only when clear

water, free of bubbles, ows out.

• Purge the air from the pump by unscrew-

ing the pump plug 2 (Fig. 15.1); release the

pump by turning the rotor in the direction

indicated by the arrow on the information

plate.

• Close the pump plug.

• Continue 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 ush the system to remove any

loose particles and any system debris be-

fore starting the boiler for the rst time.

• Reassemble the front panel of the case.

• Return ll valve to automatic position.

15.2 Lighting the boiler:

Note: If external controls are 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 ash every 4 seconds.

• Turn the function selector B as in Fig. 15.2. The appliance operation light A will ash every

2 seconds.

Figure 15.2

AB CDE

WARNINGS