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Note: The drive belt is a urethane stretch belt designed
to provide constant tension throughout the life of
the belt. No periodic adjustment is required.
Inspect the belt annually for proper tracking and
tension. A properly tensioned belt will turn the
wheel immediately, with no visible slippage,
when power is applied.
4. If the wheel has difficulty starting, turn off the power
and inspect the wheel for excessive interference
between the wheel surface and the four diameter seals.
To correct interference, loosen the diameter seal
adjusting screws and back the diameter seals away
from the surface of the wheel. Apply power to confirm
free wheel rotation. Re-adjust and tighten the seals
according to instructions in the “Service and Repair”
section.
Damper Actuators
Stroke the actuators to observe full open and full closure of
the dampers.
Routine Maintenance
NOTICE
Energy Wheel Damage!
Failure to follow instructions below could result in
wheel damage.
Do not use acid based cleaners, aromatic solvents,
steam, or temperatures in excess of 170°F to clean the
wheel.
Do not use a pressure washer to clean energy wheel
segments.
Cleaning the Energy Wheel
Disconnect all electrical power, then use a vacuum or
brush to remove accumulated material from the face of the
wheel. Examine the energy wheel monthly for material
build-up on the wheel. If more aggressive cleaning is
needed, removed the wheel segments and follow these
steps:
1. Wash the segments or the wheel in a five-percent
solution of non-acid-base coil cleaner (part no.
CHM00021 at your local Trane parts center) or in an
alkaline detergent and warm water.
2. Soak the segments in the solution until grease, oil, and
tar deposits are loosened.
3. Before removing the cleaner, rapidly run your fingers
across the surface of segments to separate polymer
strips for better cleaning action.
4. Rinse the dirty solution from the segments and remove
the excess water before re-installing the segments in
the wheel.
Note: Some permanent staining of the desiccant may
remain but is not harmful to performance.
Cleaning Frequency
In reasonably clean office or school buildings, cleaning with
a coil cleaner solution may not be required for several
years. If the energy wheel is exposed to air streams
containing, for example, high levels of occupant tobacco
smoke, cooking facility exhaust air, or oil-based aerosols
found in machine shop areas, annual or more frequent
cleaning may be required to remove these contaminants
and restore performance. Periodic inspection of the wheel
should be done to determine the cleaning intervals.
WARNING
Hazardous Voltage!
Failure to disconnect power before servicing could
result in death or serious injury.
Disconnect all electric power, including remote
disconnects before servicing. Follow proper lockout/
tagout procedures to ensure the power can not be
inadvertently energized. Verify that no power is
present with a voltmeter.
WARNING
Rotating Components!
Failure to disconnect power before servicing could
result in rotating components cutting and slashing
technician which could result in death or serious
injury.
During installation, testing, servicing and
troubleshooting of this product it may be necessary
to work with live and exposed rotating components.
Have a qualified or licensed service individual who
has been properly trained in handling exposed
rotating components, perform these tasks.
High-maintenance applications may benefit from keeping a
spare set of clean segments on hand. This allows for rapid
change-out of clean segments with minimal downtime. The
dirty segments can then be cleaned at a convenient time.
Segment Removal
WARNING
Hazardous Voltage!
Failure to disconnect power before servicing could
result in death or serious injury.
Disconnect all electric power, including remote
disconnects before servicing. Follow proper lockout/
tagout procedures to ensure the power can not be
inadvertently energized. Verify that no power is
present with a voltmeter.
Important: Do not open the service access doors while the
unit is operating.
Wheel segments for the low CFM energy recovery option
for the 90, 105, and 120 ton units are secured to the wheel
frame by a segment retainer that pivots on the wheel rim
and is held in place by a segment retaining catch. All other
Unit Startup
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