Reznor R6GP Unit Installation Manual - Manual (Page 19)

19
Electrical
WARNING:
This unit may have more than one electrical
supply. To avoid risk of electrical shock, personal
injury, or death, disconnect all electrical power
to the unit before performing any maintenance
or service.
CAUTION:
Label all wires prior to disconnection when
servicing controls. Wiring errors can cause
improper and dangerous operation.
Inspect the electrical connections for tightness at the
beginning of each heating and cooling season. Service
as necessary.
Motor / Bearing Lubrication
WARNING:
Lubrication of the motors in this unit is not
required. Do not lubricate any motor in this
product.
• The blower assembly in this unit is equipped with two
support bearings. The support bearings are sealed
cartridge units and require no further lubrication.
• The indoor blower motor is pre-lubricated at the factory
and does not require additional lubrication.
• 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
Heat Exchanger & Burner Maintenance
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.
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 technician
annually to ensure continued safe operation. Particular
attention must be given to identify deterioration from
corrosion or other sources.
Vent Cover Assembly
Inspect and clean the screen of the vent cover assembly
at the beginning of each heating and cooling seasons.
Cleaning of Burners
It is recommended that the burners be inspected and
cleaned periodically (if required) by a qualified technician
annually 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 the steps below.
1. Shut off the gas supply to the unit either at the meter
or at a manual valve in the supply piping.
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, and
flame sensor.
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 (if necessary).
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.
12. Follow the lighting instructions found on the right
side door to return the unit to operation. Verify proper
operation after servicing.
Cleaning of Heat Exchanger
If the heat exchanger must be cleaned due to soot or
scale build up, follow the steps below.
1. Shut off the gas supply to the unit either at the meter
or at the manual valve in the gas supply piping.
2. Turn off all power to the unit and set the thermostat to
the lowest temperature setting.