Filter
Top Products
19Part number 550-141-850/0699
• Installation • Start-Up • Parts • Maintenance
GVX PROP
GVX PROP
GVX PROP
Install plate with red side (propane) or plain side
(natural) .against the blowerhousing
Orifice plate after bending along
score mark. This makes the plate
identification readable after
installation.
85004b
GVX PROP
GVX PROP
GVX PROP
Propane — red side Natural — plain side
White side (propane plate)
Warning label side (natural gas)
(Install with this side
toward air inlet hose)
Gas/air manifold
Bottom side of boiler front section
Bottom side of boiler front section
Figure 5b Checking and replacing gas/air orifice plate. For propane
installations, replace silver plate with red/white propane plate.
DO NOT use electric or
pneumatic screwdrivers
to
remove or tighten the gas/air boss
screws. Hand-tighten only, using
manual screwdriver. Should the
torque exceed 40 inch-pounds, the
threaded holes could strip out, causing
an inadequate seal of the orifice plate.
Failure to properly seal the plate to
the housing could result in a gas leak,
causing severe personal injury, death
or substantial property damage.