International comfort products NAHB00101MH Installation Instructions Manual page 8

REINSTALL BURNER ASSEMBLY
To reinstall burner assembly:
1. Attach flame sensor to burner assembly.
2. Insert one−piece burner in slot on sides of burner box
and slide burner back in place.
3. Verify igniter to burner alignment. (See Figure 14 and
Figure 15)
CONVERT GAS VALVE
WARNING
!
FIRE, EXPLOSION, ELECTRICAL SHOCK HAZARD
Failure to follow this warning could result in personal injury,
death or property damage.
Gas supply and electrical power MUST be shut off to the
furnace before proceeding with conversion.
WARNING
!
ELECTRICAL SHOCK, FIRE OR EXPLOSION HAZARD
Failure to follow this warning could result in personal injury,
death or property damage.
Before installing, modifying, or servicing system, main
electrical disconnect switch must be in the OFF position and
install a lockout tag. There may be more than one disconnect
switch. Lock out and tag switch with a suitable warning label.
Verify proper operation after servicing.
1. Refer to Figure 16.
2. Be sure gas and electrical supplies to furnace are OFF.
3. Orient gas valve LP/NAT cap for propane gas. The LP
arrow should point toward gas valve.
INSTALL LOW GAS PRESSURE SWITCH
NOTE: Install the Low Gas Pressure Switch (LGPS) before
installing the manifold on the burner assembly.
There are two ways to mount the Low Gas Pressure Switch.
All 14 3/16−in Casings or Vent Passed Between Inducer
Assembly and Burner Assembly
If the vent pipe passes between the inducer and burner
assembly, or the furnace is a 14−3/16−in. wide casing, install
the switch as follows: (See Figure 17)
1. Remove the 1/8−in. NPT pipe plug from the gas valve
inlet pressure tap.
NOTE: Use pipe dope approved for use with Propane Gas.
NOTE: Tighten all fittings and the Low Gas Pressure Switch
with a small wrench. Do not over−tighten, check for gas leaks
after gas supply has been turned on.
WARNING
!
FIRE AND EXPLOSION HAZARD
Failure to follow this warning could result in personal injury
and/or death.
NEVER test for gas leaks with an open flame. Use a
commercially available soap solution made specifically for
the detection of leaks to check all connections. A fire or
explosion may result causing property damage, personal
injury or loss of life.
8
RISQUE D'EXPLOSION ET D'INCENDIE
Le fait de ne pas suivre cet avertissement pourrait entraîner
des dommages corporels et / ou la mort.
Ne jamais examiner pour les fuites de gaz avec une flamme
vive. Utilisez plutôt un savon fait specifiquement pour la
détection des fuites de gaz pour verifier tous les connections.
Un incendie ou une explosion peut entrainer des dommages
matériels, des blessures ou la mort.
2. Apply pipe dope sparingly to the male threads of the
3. Apply pipe dope sparingly to the male threads of the
4. Apply pipe dope sparingly to the male threads of the
5. Install the open end of the brass street elbow on the end
6. Apply pipe dope sparingly to the male threads of the
7. The remaining opening on the brass street tee is the new
8. Check all fittings for leaks after gas supply has been
Casings Wider Than 14−3/16−in/Vent Does Not Pass
Between Inducer and Burner Assembly
If the vent pipe does not pass between the inducer and burner
assembly, or the furnace is wider than a 14−3/16−in. wide
casing, install the switch as follows: (See Figure 18)
1. Remove the 1/8−in. NPT pipe plug from the gas valve
NOTE: Use pipe dope approved for use with Propane Gas.
NOTE: Tighten all fittings and the Low Gas Pressure Switch
with a small wrench. Do not over-tighten, check for gas leaks
after gas supply has been turned on.
2. Apply pipe dope sparingly to the male threads of the
3. Apply pipe dope sparingly to the male threads of the
4. Install the open end of the brass street elbow on the end
5. Apply pipe dope sparingly to the male threads of the
Specifications subject to change without notice.
AVERTISSEMENT
!
1/8−in. black iron street elbow. Install the street elbow
into the gas valve inlet pressure tap. Point the open end
of the street elbow toward you.
1/8−in. brass street tee. Install the male end of the street
tee as shown in Figure 17. One opening on the street
tee should face you. The other opening should be
parallel with the inlet of the gas valve.
1/8−in. brass hex nipple. Install the hex nipple into the
open end of the brass street tee. See Figure 17. The
hex nipple should be parallel with the boss on the gas
valve.
of the hex nipple. Tighten the street elbow so the male
threads of the elbow point away from you.
1/8−in. brass street elbow. Install the Low Gas Pressure
Switch on the male threads of the street elbow. Tighten
switch at hex fitting at base of switch. Do not use switch
body to tighten switch. Do not over−tighten switch.
gas valve inlet pressure tap. Install manometer fitting to
the open end of the brass street tee. Or if installation is to
be completed later, apply pipe dope to inlet pressure
plug from gas valve and install in open end of brass
street tee.
turned on.
inlet pressure tap.
1/8-in. brass street elbow. Install the street elbow into the
gas valve inlet pressure tap. One end of the opening of
the street elbow should be parallel with the inlet boss on
the gas valve. The other opening should be pointing
toward you..
1/8-in. long brass nipple. Install the nipple into the open
end of the brass street elbow.
of the brass nipple. Tighten the street elbow so the male
threads of the elbow point away from you.
1/8-in. brass street elbow. Install the Low Gas Pressure
Switch on the male threads of the street elbow finger
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