International comfort products NAHB00101MH Installation Instructions Manual page 13

2. Insert one−piece burner in slot on sides of burner box
and slide burner back in place.
3. Reattach HSI wires to HSI.
4. 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 MUST be shut off before disconnecting electrical
power 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 23.
2. Be sure gas and electrical supplies to furnace are off.
3. Orient gas valve LP/NAT cap for natural gas. The NAT
arrow should point toward gas valve.
Figure 23
Convertible Gas Valve
ON/OFF SWITCH
INLET
PRESSURE TAP
REMOVE LOW GAS PRESSURE SWITCH
CAUTION
!
UNIT OPERATION HAZARD
Failure to follow this caution may result in unit damage or
improper operation.
Label all wires prior to disconnection when servicing controls.
PRUDENCE
!
D'EQUIPEMENT D'OPERATION
Toute erreur de câblage peut être une source de danger et
de panne.
Lors des opérations d'entretien des commandes, étiqueter
tous les fils avant de les déconnecter.
443 06 4003 00
LP/NAT
CONVERTIBLE CAP
REGULATOR PLUNGER
NAT
GAS PRESSURE
REGULATOR
MANIFOLD
PRESSURE TAP
A11510
Specifications subject to change without notice.
1. Remove the orange wire from the terminal on the Low
Pressure Switch.
2. Connect the orange wire from the wiring harness to the
terminal on the Low Pressure Switch.
3. Discard loose orange wire.
4. Remove the 1/8−in. NPT pipe plug from the tee fitting on
the Low Gas Pressure Switch.
5. Remove the Low Gas Pressure Switch from fittings on
gas valve and discard.
6. Remove remaining fittings from gas valve and discard.
7. 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.
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.
AVERTISSEMENT
!
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.
8. Check all fittings for leaks after gas supply has been
turned on.
Figure 24
Pressure Switch Wiring
INSTALL MANIFOLD
1. Refer to Figure 3 and Figure 9.
2. Align the orifices in the manifold assembly with the
support rings on the end of the burner.
3. Insert the orifices in the support rings of the burners.
Manifold mounting tabs should fit flush against the burner
box.
NOTE: If manifold does not fit flush against the burner box, the
burners are not fully seated forward. Remove the manifold and
check burner positioning in the burner box assembly.
4. Attach the green/yellow wire and ground terminal to one
of the manifold mounting screws. (See Figure 3)
5. Install the remaining manifold mounting screws.
6. Connect the wires to both rollout switches.
7. Connect the wires to the flame sensor and hot surface
igniter.
8. Connect the connector harness to gas valve.
ORN
A11534
13