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2.2 Checking Pressures:
A)
To gain access to the internal gas valve please remove the top collar from
the unit and place to one side, you should now have access to four screws
securing the front panel to the unit. Remove these four screws and place
the front panel underneath the appliance being careful not to pull on any
front panel wires.
B)
Unscrew the Inlet Pressure Post with a 2.5mm Allen key and connect your
manometer to make sure the supply pressure is consistent with your gas
type. Once happy with the pressure, remove your manometer and tighten
up the Inlet Pressure Post.
C)
Unscrew the Outlet Pressure Post with a 2.5mm Allen key and connect
your manometer.
D)
Turn on the unit, making sure any packaging is free from the burner, and
adjust the valve until gas pressure reads 15mbar.
YOU MUST ZERO YOU MANOMETER ONCE THE UNIT IS RUNNING
.
When the appliance starts up, the fan pressure in the system will cause
the manometer to increase by around 0.7 to 1.0 mbar before any gas starts
flowing, so when the gas valve opens the manometer will increase again.
SO, if you have 1.0mbar of fan pressure already showing and the Gas Valve
opens and you then increase the final pressure to 15.0 mbar you only
actually have 14.0mbar of gas pressure; the unit will run cold. To correctly
adjust the pressure, turn the grill on, let it ignite with a steady flame.
Turn OFF the GAS VALVE (not the Grill) using the switch on the Valve
(the unit should then start attempting to reignite) and zero your
manometer so its reads ZERO and then turn the Gas Valve back on
.
The pressure displaying now on your manometer is only the Gas Pressure
,
not the Air and Gas. Changing of pressure is achieved by removing the
Brass Regulator Cover Screw and adjust/screw the white lug inside – anti
clockwise lowers pressure, clockwise increases it. Once outlet pressure
has been reached, retighten the Brass Regulator Cover Screw, remove
manometer and retighten the Outlet Pressure Post.
Once the gas pressure has been set the flame length should be a steady 10mm
around the burner, if the flame is different please make sure the Gas Jet & Gas Types
correspond to each other. You should not need to adjust the air speed to this unit.