Routine - Greenheck IGX Installation, Operation And Maintenance Manual

Maintenance Instructions:

Routine

Greenheck recommends these procedures to insure trouble free operation of this unit. It is especially important
to maintain heater units for clean and efficient operation. Most unit failures can be attributed to poor setup or
poor maintenance.
A record of maintenance performed on this unit should be kept. This information will provide essential
information if problems are encountered. A section at the back of this manual is provided for recording the
unit's maintenance history.
CAUTION: When performing any maintenance on this unit be sure that the power is disconnected and
cannot be accidentally turned on. The control center disconnect can be locked in the off position.
2 weeks after startup
Check belt tension - Belts tend to stretch after a period of time. They should be periodically checked for wear
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and tightness. Approximately ⁄ in. of deflection per ft. of span between sheaves is standard for belt
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tightness. When replacing belts, use the same type as supplied with the unit. Matched belts should always be
used on units with multigroove pulleys.
Replacement of belts - should be accomplished by loosening the tensioning device to the point where the
belts can be removed by hand. Do not force belts on or off as this may cause breakage of cords leading to
premature belt failure. Belts should be adjusted as above.
Every 3 Months
The filters in the unit should be inspected at least every 3 months. Depending on the environment filters could
require changing or cleaning more or less often.
If washable filters are installed, they can be washed in warm soapy water. An adhesive spray can be applied to
increase filter efficiency.
If disposable filters are installed, check by holding up to a light source. If light cannot pass through the filter, it
should be replaced. Replacement filters should be of the same manufacturer and size.
When reinstalling filters, be sure to install with the airflow in the correct direction indicated on the filter and with
any factory spacers that came with the unit.
Yearly
All bearings on units with blowers 108 to 118 are permanently lubricated and require no further lubrication
under normal use. Normal use being considered -20°F to 120°F and in a relatively clean environment. Units with
a blower size of 120 should be checked monthly for lubrication.
Motor maintenance is generally limited to cleaning and lubrication (where applicable). Cleaning should be
limited to the exterior surfaces only. Removing dust and grease buildup on motor housing assures proper motor
cooling. Greasing of motors is intended only when grease fittings are provided. Many fractional motors are
permanently lubricated and require no further lubrication. Motors supplied with grease fittings should be
greased in accordance with manufacturer's recommendations. When motor temperature does not exceed 104°F
(40°C), the grease should be replaced after 2000 hours of running time as a general rule.
Wheels require very little attention when moving clean air. Occasionally oil and dust may accumulate on the
wheel causing imbalance. When this occurs the wheel and housing should be cleaned to assure smooth and
safe operation. Inspect fan impeller and housing for fatigue, corrosion or wear
Routinely check all fasteners, set screws and locking collars on the fan, bearing, drive, motor base and
accessories for tightness.
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