Instruction manual

STARTING THE APPLIANCE
INSTALLATION & SERVICING INSTRUCTIONS FOR WORCESTER GREENSTAR CAMRAY EXTERNAL &
EXTERNAL SYSTEM 12/18-18/25-25/32
8 716 115 667a (05.2009)
36
COMMISSIONING
STARTING THE APPLIANCE
IMPORTANT: Never run the appliance when
the appliance/system is unpressurised
(sealed systems) or empty.
1Check the oil supply is correctly fitted and
in good working order before turning on
the oil supply valves to the boiler.
Turn on the main oil supply valve at the tank
and draw off at least 2
1
/
2
litres of oil until a
steady flow of clear uncontaminated oil can
be seen as follows:
• The oil supply to the boiler should be
primed before the burner is operated to
avoid unnecessary pump wear.
• The use of an oil suction pump will prime
and flush through any oil supply set up
simply and easily, alternatively the
following procedures can be used.
Single pipe gravity feed systems:
Disconnect the flexible oil pipe and open
the isolating valve to discharge the oil into a
suitable container.
If a top entry tank has been used the
pipework will need to be primed before the
oil will discharge under gravity.
When completed, close the isolating valve,
reconnect the flexible oil pipe.
Double pipe sub-gravity feed systems
and single pipe suction lift with de-aerator:
To prime a de-aerator, disconnect the
flexible oil inlet hose (E) from the isolation valve
and place in a container of kerosene (F).
Connect a spare flexible oil hose (G), to
discharge into container (F). Open the
isolating valve, turn on the power to the boiler
and set the programmer to ON. Prime the
de-aerator until there is a steady flow of oil into
container (F). Turn off the boiler then
reconnect the flexible oil inlet hose (E).
Turn on the boiler, the oil level in the
de-aerator will drop as the oil is used until
the oil is drawn from the tank. If the
de-aerator empties and the burner locks out
before the oil is drawn from the tank, prime
the de-aerator again.
Open the isolating valve and the oil pump
bleed valve (A) to discharge into a suitable
container once the boiler is started up.
Switch on the electricity supply to the boiler.
Set the programmer to ON.
Set the boiler mode switch to ON.
Turn on the thermostat control to MAX.
Allow the burner to run through to 'lock-out'
indicated by the illumination of the lockout
indicator on the lockout reset button (H).
Wait 2 minutes then press the lockout reset
button (H).
Repeat the procedure at least 3 times or until a
steady stream of oil, without air, runs from
the bleed port, then relock the bleed port (A).
Switch off the boiler.
Remove the oil pump filter, clean with
kerosene and refit.
The internal filter is accessed by removing
the oil pump cover.
Safely dispose of the container/discharge.