4
Orifice Conversion
5. Remove the screws securing the manifold and valve
to the burner bracket. Separate gas manifold and
valve from burner bracket.
ALL OTHER CONDENSING FURNACES
1. Disconnect wiring from the gas valve.
2. Where necessary, cut wire ties securing wiring to
manifold.
3. Remove the screws securing the manifold and valve
to the burner bracket . Separate gas manifold and
valve from burner bracket .
BURNER ORIFICE REPLACEMENT
1. Remove natural gas orifices from gas manifold using
a box end wrench.
2. Install propane gas orifices. Tighten orifices with a
box-end wrench; do not use a socket wrench as it
could damage the orifices; do not cross-thread or
overtighten. Refer to table 1 for the appropriate LP
kit and orifice size.
Package Gas-Electric
MANIFOLD/VALVE REMOVAL
PACKAGE GAS-ELECTRIC UNITS WITH PILOT
1. Disconnect wiring from the gas valve.
2. Where necessary, cut wire ties securing wiring to
manifold.
3. Remove the screws securing the pilot assembly to
the burner tray.
4. Remove the pilot assembly, pilot tubing, gas manifold
and valve together. CAUTION: Pilot tube is delicate
do not bend or crimp.
PACKAGE GAS-ELECTRIC UNITS WITHOUT PILOT
1. Disconnect wiring from the gas valve.
2. Where necessary, cut wire ties securing wiring to
manifold.
3. Remove the screws securing the manifold and valve
to the burner box or burner bracket. Separate gas
manifold and valve from burner box or burner
bracket.
BURNER ORIFICE REPLACEMENT
ALL PACKAGE GAS-ELECTRIC UNITS
1. Remove natural gas orifices from gas manifold using
a box end wrench.
2. Install propane gas orifices. Tighten orifices with a
box-end wrench; do not use a socket wrench as it
could damage the orifices; do not cross-thread or
overtighten. Refer to table 1 for the appropriate LP
kit and orifice size.
The gas manifold along with the gas valve must be removed
in order to access the burner orifices. Before proceeding,
shut off gas supply at manual shutoff and turn off
power to unit.
CAUTION
PERSONAL INJURY HAZARD
The gas supply must be shut off prior to
disconnecting the electrical power, before
proceeding with the conversion.
Non-Condensing Furnaces
M
ANIFOLD/VALVE REMOVAL
1. Disconnect wiring from the gas valve.
2. Remove burner box door.
NOTE: GUID furnaces do not have a burner box
door.
3. Where necessary, cut wire ties securing wiring to
manifold.
4. Remove the screws securing the manifold and valve
to the burner box bracket. Separate gas manifold
and valve from burner box.
BURNER ORIFICE REPLACEMENT
1. Remove natural gas orifices from gas manifold using
a box end wrench.
2. Install propane gas orifices. Tighten orifices with a
box-end wrench; do not use a socket wrench as it
could damage the orifices; do not cross-thread or
overtighten. Refer to Table 1 for the appropriate LP
kit and orifice size.
Condensing Furnaces
MANIFOLD/VALVE REMOVAL
GUD/GCD FURNACES
1. Disconnect wiring from the gas valve.
2. Remove burner box door.
3. Disconnect burner box hose from gas valve.
4. Where necessary, cut wire ties securing wiring to
manifold.
(12 Seiten)
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