Reznor VPS Unit Installation Manual - Manual (Page 34)

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4.3 Burner Removal
Step 1: Isolate power and gas supplies.
Step 2: Unplug the power connectors.
Step 3: Detach the gas supply as shown
below, taking care to support the burner
connection.
Step 4: If fresh air is connected, slacken
hose clip and remove the flexible hose from the
burner.
Step 5: loosen the set screw on the burner
support casting to enable the burner to be
removed from the radiant tube.
Step 6: Remove the burner and position
in a safe area to prevent the burner or
components attached to the burner from falling
to the ground.
4.4 Burner Gas Injector Servicing
Step 1.a: Remove the burner support casting
and gasket.
Step 1.b: The burner head assembly can be
disconnected by separating the connectors of
the ignition lead, ground lead assembly and
removing the pressure switch silicon tube.
Step 2: The gas injector can be inspected and
replaced if contaminated or blocked.
When replacing the gas injector ensure
approved thread sealant is used.