Reznor EEDU Unit Installation Manual - Manual (Page 26)

Form I-EEDU, Page 26
DANGER
The gas burner in this gas-fired equipment is designed and equipped to provide safe, complete
combustion. However, if the installation does not permit the burner to receive the proper sup-
ply of combustion air, complete combustion may not occur. The result is incomplete combus-
tion which produces carbon monoxide, a poisonous gas that can cause death. Safe operation
of indirect-fired gas burning equipment requires a properly operating vent system which vents
all flue products to the outside atmosphere. FAILURE TO PROVIDE PROPER VENTING WILL
RESULT IN A HEALTH HAZARD WHICH COULD CAUSE SERIOUS PERSONAL INJURY OR DEATH.
Always comply with the combustion air requirements in the installation codes and in Paragraph
2.2. Combustion air at the burner should be regulated only by manufacturer-provided equipment.
NEVER RESTRICT OR OTHERWISE ALTER THE SUPPLY OF COMBUSTION AIR TO ANY HEATER.
Indoor units installed in a confined space must be supplied with air for combustion as required
by Code and in Paragraph 2.2 of this heater installation manual. MAINTAIN THE VENT SYSTEM IN
STRUCTURALLY SOUND AND PROPERLY OPERATING CONDITION.
10.0 Maintenance
and Service
10.1 Maintenance Schedule
Maintenance Requirements - This unit will operate with a minimum of maintenance.
However, to ensure long life and satisfactory performance, the following service sched-
ule is recommended. When servicing, follow standard safety procedures and those
specific instructions and warnings in this manual.
Furnaces should be inspected at the beginning of each heating season and then once
every four (4) months where the equipment is working under normal conditions. If the
furnace is located where an unusual amount of dust or soot or other impurities are con-
tained in the air, more frequent inspection is recommended. Clean the heat exchanger
(inside and outside) annually.
The following procedures should be carried out at least annually (See Para-
graphs 10.2.1 - 10.2.4 for specific instructions.):
 Clean all dirt and grease from the primary and secondary combustion air
openings.
 Check the gas valve to ensure that gas flow is being shutoff completely.
 Clean the heat exchanger both internally and externally.
 Check the pilot burner and main burners for scale, dust, or lint
accumulation. Clean as needed.
 Check the vent system for soundness. Replace any parts that do not
appear sound.
 Check the wiring for any damaged wire. Replace damaged wiring. (See
Paragraph 7.0 for replacement wiring requirements.)
CAUTION: When cleaning, wearing eye protection is recommended.
NOTE: Use only factory-authorized replacement parts.
10.2.1 Operating Gas
Valve
WARNING
The operating valve is the prime safety shutoff. All gas supply lines
must be free of dirt or scale before connecting to the unit to ensure
positive closure. See Hazard Levels, page 2.
Remove external dirt accumulation and check wiring connections.
The combination gas valve must be checked annually to ensure that the valve is shut-
ting off gas flow completely.
10.2 Maintenance
Procedures
9.0 Commissioning and Startup (cont'd)
9.3 Check installation after startup (cont'd)
WARNING
If you turn off the
power supply, turn off
the gas. See Hazard
Levels, page 2.