Carrier 58MEC - Manual (Page 6)

6
UNIT DAMAGE HAZARD
Failure to follow this caution may result in damage to furnace.
Label all wires prior to disconnection when servicing controls.
Wiring errors can cause improper and dangerous operation.
CAUTION
!
5. Remove wires from gas valve. Note location for reassembly.
6. Remove burner box pressure tube from gas valve regulator
fitting.
7. Unplug igniter from harness.
8. Remove igniter leads from slot in manifold grommet.
9. Remove screws that secure manifold to burner box. (See
Fig. 6.)
NOTE: Do not remove burner box from cell panel.
10. Remove manifold, orifices, and gas valve as 1 assembly.
11. Remove screws attaching burner assembly in burner box.
NOTE: Use care when removing and reinstalling burners not to
strike the hot surface igniter.
12. Remove burner assembly from burner box. NOTE: All
burners are attached to burner bracket and can be removed
as 1 assembly.
13. Clean burners with soft brush and vacuum.
14. Reinstall burner assembly, manifold, orifice, and gas valve
assembly in burner box. Ensure manifold seal grommet is
installed properly and burners fit over orifices.
15. Reinsert the igniter wires in the slot in the manifold grom-
met, dressing the wires to ensure there is no tension on the
igniter itself. (See Fig. 7.)
MANIFOLD
MOUNTING
SCREW
MANIFOLD
GAS VALVE
REGULATOR
FITTING
GAS VALVE
CELL
PANEL
A96304
Fig. 6 -- Burner Box Assembly
IGNIT ER WIRES MUST
BE PLACED IN THIS SLOT
A05074
Fig. 7 -- Igniter Wire Placement
UNIT COMPONENT ELECTRICAL SHORT HAZARD
Failure to follow this caution may result in unit component
damage.
Igniter wires must be securely placed in slot in manifold
grommet or else they could become pinched or severed and
electrically shorted.
CAUTION
!
16. Reconnect wires to gas valve and igniter. Refer to furnace
wiring diagram for proper wire location.
17. Reinstall burner box pressure tube to gas valve regulator fit-
ting.
18. Reinstall gas supply pipe to furnace gas control valve using
backup wrench on gas valve to prevent rotation and im-
proper orientation.
NOTE: Use propane gas resistant pipe dope to prevent gas leaks.
DO NOT use Teflon tape.
FIRE, EXPLOSION, UNIT DAMAGE HAZARD
Failure to follow this warning could result in property damage,
personal injury, or death.
Gas valve switch MUST be facing forward or tilted upward.
!
WARNING
19. Replace burner box cover.
20. Turn on gas and electrical supplies to furnace.
FIRE OR EXPLOSION HAZARD
Failure to follow this warning could result in personal injury,
death, or property damage.
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.
!
WARNING
58ME
C