Reznor R6GI Unit Installation Manual - Manual (Page 21)

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the blower and motor can create excessive loads on
the motor resulting in higher than normal operating
temperatures and possible shortened service life.
• 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.
• The motors for the circulating air blower, outdoor fan,
and combustion blower are pre-lubricated at the factory.
No further oiling is required for the life of this product.
• Inspect and clean the screen of the vent cover assembly
at the beginning of each heating and cooling season.
Cleaning of Heat Exchanger
WARNING:
Holes in the heat exchanger can cause products
of combustion to enter the home. Replace the heat
exchanger if leaks are found. Failure to prevent
products of combustion from being circulated into
the living space can create potentially hazardous
conditions including carbon monoxide poisoning
that could result in personal injury or death.
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 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.
3. Remove the louvered access panel from the unit.
4. Turn the gas control knob (gas valve) to the OFF
position. See Figure 11 (page 29) for gas valve shut
off instructions.
5. Disconnect the wires from the gas valve, ignitor, flame
sensor, combustion air motor, flame roll-out control,
over-temperature limit switch, and pressure switch.
6. Remove the silicone rubber tube from the collector pan
to the pressure switch.
7. Remove 4 nuts securing the combustion blower to the
collector pan. Remove the combustion blower.
8. Remove all screws securing the collector pan to the
unit. Remove the collector pan from the unit.
CAUTION:
To prevent damage to the unit or internal
components, it is recommended that two
wrenches be used when loosening or tightening
nuts. Do not over tighten!
9. Using 2 wrenches, separate the ground-joint union in
the gas supply piping at the unit.
CAUTION:
Use care when removing parts from this unit.
Personal injury can result from sharp metal
edges present in all equipment of sheet metal
construction.
Proper maintenance is important to achieve optimum
performance from the system. The ability to properly
perform maintenance on this equipment requires certain
mechanical skills and tools. If you do not possess these
skills, contact your dealer for maintenance. Consult your
local dealer about the availability of maintenance contracts.
Routine maintenance should include the following:
CAUTION:
The unit should never be operated without a
filter in the return air system. Replace disposable
filters with the same type and size.
• Inspect, clean or replace air filters at the beginning of
each heating and cooling season, or more frequently
if required.
• 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.
• Inspect the electrical connections for tightness at the
beginning of each heating and cooling season.
• 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
AVERTISSEMENT:
RISQUE DE CHOC ÉLECTRIQUE,
D’INCENDIE OU D’EXPLOSION
Le non-respect des avertissements de sécurité
pourrait entraîner un fonctionnement dangereux
de l’appareil, des blessures graves, la mort ou des
dommages matériels.
Un entretein incorrect pourrait entraîner un
fonctionnement dangereux de l’appareil, des
blessures graves, la mort ou des dommages
matériels
• Couper toute alimentation électrique au
générateur d’air chaud avant de prodéder aux
travaux d’entretein.
• Au moment de l’entretien des commandes,
étiquetez tous les fils avant de les débrancher.
S’assurer de les raccorder correctement.
• S’assurer que l’appareil fonctionne adéquatement
aprés l’entretien.