32
I-RX-RG-RPV (09-19) PN1027501R0
MAINTENANCE
This unit will operate with a minimum of maintenance. To ensure long life and satisfactory performance, a furnace
operating under normal conditions should be inspected every four months. If the furnace is operating in an area where
an unusual amount of dust or soot or other impurities are present in the air, more frequent inspection is recommended.
Maintenance Schedule
The following procedures should be carried out at least annually.
Clean all dirt and grease from primary and secondary combustion air openings
Clean heat exchanger both internally and externally
Check pilot burner and main burners for scale, dust, or lint accumulation—clean as necessary
Power-vented models: check flue products outlet—clean as necessary
Gravity-vented models: check vent cap or optional vent system—replace any parts that do not appear sound
Check wiring for any damaged wire—replace as necessary
Maintenance Procedures
⚠ WARNING ⚠
• If you turn OFF the power supply, turn OFF the gas.
• When cleaning furnace components, wearing eye protection is recommended.
⚠ CAUTION ⚠
If replacement parts are required, use only factory-authorized parts.
Burner Maintenance
1. Remove burner rack as follows:
a. Turn OFF gas supply.
b. Turn OFF electric supply.
c. Remove control access side panel.
d. Disconnect pilot tubing and flame sensor lead.
e. Mark and disconnect electric valve leads.
f. Uncouple union in gas supply.
g. Remove sheet metal screws in top corners of burner rack assembly.
h. Pull drawer-type burner rack out of furnace.
2. Disassemble burner rack as follows:
a. Remove carryover system. For natural gas burner racks manufactured before MAR 1995, which have lighter
tube carryover system, break lighter tube connection at orifice and remove supply tubing, drip shield, and
lighter tube. For natural gas burner racks manufactured after FEB 1995, remove flash carryover system from
manifold end of burner rack. For propane burner racks, break lighter tube connection at regulator and remove
lighter tube orifice supply tubing. Remove retaining screws in drip shield and then shield and remove retaining
screws and slide out lighter tube.
b. Pull main burners horizontally away from injection opening and lift them out.
c. Remove manifold bracket screws and remove manifold.
d. Change main burner orifices if necessary.
e. Remove screws and lift out pilot burner.
To Next Page
Loading...
Need help?
General
