Manifold Assembly Removal; Burner And Pilot Assembly Removal - Modine Manufacturing IFS Installation And Service Manual

MAINTENANCE
Figure 23.1 - Manifold Assembly Removal
ELECTRICAL
BURNER SIDE
ACCESS PANEL

Burner and Pilot Assembly Removal

To remove the burner (refer to Figure 23.2)
1. Shut off gas and electric supply.
2. Remove the burner side access panel.
3. Disconnect the pilot supply line from the gas valve.
4. Disconnect the ignition cable from the ignition controller
(located in the electrical junction box). Feed the cable
through the bushing in the bottom of the electrical junction
box.
5. Remove the screws holding the burner side access panel.
Attached to the panel are the burner retaining pins that
align the burner.
6. Slide the burner assembly out. The pilot is attached to the
burner assembly.
7. Examine the burner and pilot assembly for cleanliness
and/or obstructions as necessary (see Duct Furnace for
cleaning instructions).
8. Replace the burner assembly in reverse order. In replacing
the burner, be certain that the rear burner slots are located
properly on the burner retaining pins. Do not force the
burner side access panel, it will not fit if the burner is not
properly aligned.
9. Reconnect the ignition cable and pilot gas supply line.
10. Install the burner side access panel.
11. Turn on the electric and gas supply.
SERIAL PLATE ON
OUTSIDE OF DOOR
JUNCTION
(NOT SHOWN)
BOX
GROUND
UNION
JOINT
MANIFOLD
HEAT EXCHANGER
SUPPORT
Figure 23.2 - Burner and Pilot Assembly Removal
PILOT
IGNITION
ASSEMBLY
AIR 5-593.9
PILOT
SUPPLY
CABLE
LINE
AIR SHUTTERS
(NOT SHOWN)
ARE LOCATED
ON THE
ORIFICES
23