Reznor R6GN Unit Installation Manual - Manual (Page 20)

20
Routine Maintenance
Please consult your dealer for maintenance information
and availability of maintenance contracts.At a minimum,
routine maintenance should include the following items:
WaRNING:
Never operate the unit without filters in place.
Dust and lint in the return air can build up
on internal components, resulting in loss of
efficiency, equipment damage, and possible fire.
• Inspect the condensate drain and outdoor coil at the
beginning of each cooling season. Remove any debris.
Clean the outdoor coil and louvers as necessary using
a mild detergent and water. Rinse thoroughly with water.
• The blower compartment should be cleaned monthly
during the heating and cooling seasons to remove any dirt
and lint that may have accumulated in the compartment
or on the blower and motor. Buildup of dirt and lint on
the blower and motor can create excessive loads on
the motor resulting in higher than normal operating
temperatures and possible shortened service life.
• It is recommended that the air filters be inspected and
cleaned or replaced every 3 to 4 weeks using filters of
like size and kind. Table 1 (page 8) lists the correct filter
sizes and quantities for each unit.
• Inspect the electrical connections for tightness at the
beginning of each heating and cooling season.
• Inspect and clean the screen of the vent cover assembly
at the beginning of each heating and cooling season.
WaRNING:
Holes in the heat exchanger can cause products
of combustion to enter the structure. Replace
the heat exchanger if leaks are found. Failure
to prevent products of combustion from being
circulated into the occupied space can create
potentially hazardous conditions including
carbon monoxide poisoning that could result
in personal injury or death.
• Maintain heat exchanger and burners. The unit should
operate for many years without excessive scale buildup
in the heat exchanger, however, the heat exchanger, the
vent system, and the burners should be inspected and
cleaned (if required) by a qualified serviceman annually
to ensure continued safe operation. Particular attention
must be given to identify deterioration from corrosion
or other sources.
Motor / Bearing Lubrication Requirements
• The blower assembly in this unit is equipped with three
support bearings and one pillow block drive bearing. The
support bearings are sealed cartridge units and require
no further lubrication. The drive bearing is equipped for
future lubrication (field supplied fitting required) since
it is capable of more severe duty. The drive bearing
should be checked annually for lubrication requirements
based on application and operating conditions or as
maintenance experience dictates. Extreme care is
important to prevent overfilling or introduction of dirt
into the bearing.
• The indoor blower motor is pre-lubricated at the factory
and does not require additional lubrication under normal
application of this equipment. The motor is equipped with
grease fittings if you chose to re-lubricate the bearings
based on abnormal conditions or applications. Refer to
the motor manufacturers Installation, Operation, and
Maintenance Instructions supplied in the owners packet
for suggested amounts and type based on the bearing
model number listed on the motor nameplate.
• The combustion air blower motor and outdoor fan motors
are equipped with pre-lubricated sealed ball bearings.
No further oiling is required for the life of this product.
Cleaning the Burners
It is recommended that the burners be inspected and
cleaned annually (if required) by a qualified technician to
ensure continued safe operation. Particular attention must
be given to identify deterioration from corrosion or other
sources. If the burners must be cleaned, follow these steps:
1. Shut off the gas supply to the unit either at the meter
or at a manual valve in the supply piping.
IMPoRtaNt NotE! See gas valve label on the unit or
Figure 17 (page 35) for proper gas shutdown instructions.
2. Turn off all power to the unit and set the thermostat to
the lowest temperature setting.
3. Remove the louvered access panel from the unit.
4. Turn the gas control knob to the “OFF” position.
cautIoN:
Label all wires prior to disconnection when
servicing controls. Wiring errors can cause
improper and dangerous operation.
5. Disconnect the wires from the gas valve, ignitor, flame
sensor, and rollout switch.
6. Using two wrenches, separate the ground-joint union
in the gas supply piping at the unit.
7. Remove the piping between the gas valve and the
ground-joint union.
8. Remove four screws securing the burner assembly to
the unit.
9. Carefully remove the burner assembly from the unit.
Do Not DaMaGE tHE IGNItoR WHIlE REMoVING
tHE BuRNER aSSEMBlY.
10. Inspect the burners for accumulated dust or debris.
If necessary, carefully clean them with a soft wire
brush and/or the nozzle of a vacuum cleaner. Do
Not DaMaGE tHE IGNItoR oR FlaME SENSoR
WHIlE clEaNING tHE BuRNER.
11. Replace all the parts in reverse order from which they
were removed.