Greenheck Fan HRE-20 - Manual (Page 21)

CLEANING ENERGY RECOVERY WHEEL SEGMENTS
If the wheel appears excessively dirty, it should be cleaned to ensure maximum operating efficiency. Only
excessive buildup of foreign material needs to be removed. DISCOLORATION AND STAINING OF ENERGY
RECOVERY WHEEL DOES NOT AFFECT ITS PERFORMANCE.
Thoroughly spray wheel matrix with household cleaner such as Fantastic™ or equivalent. Gently rinse with warm
water and using a soft brush remove any heavier accumulation. A detergent/water solution can also be used.
Avoid aggressive organic solvents, such as acetone. The energy recovery wheel segments can be soaked in the
above solution overnight for stubborn dirt or accumulation.
After cleaning is complete, shake the excess water from the wheel or segments. Dry wheel or segments before
placing them back into the cassette. Place wheel or segments back into cassette by reversing removal
procedures.
** DO NOT CLEAN ENERGY RECOVERY WHEEL SEGMENTS WITH WATER IN EXCESS OF 140°F
** DO NOT DRY ENERGY RECOVERY WHEEL SEGMENTS IN AIR IN EXCESS OF 140°F.
IMPORTANT! PLACE RETAINERS BACK IN THE ORIGINAL
POSITION BEFORE ROTATING THE ENERGY
RECOVERY WHEEL. OTHERWISE DAMAGE TO
RETAINER WILL OCCUR.
Bracket Segment Retainer
Lift Away
From Segment
Catch-
Segment Retainer
Push Toward Center
Center of Wheel
Spoke
Inside of Wheel Rim
FIGURE 22
Model HRE-20, 45, 55, & 90
Steel retainers are located on the
inside of the wheel rim (FIGURE 22).
Push the retainer toward center of
wheel, then lift up and away to
release segments (FIGURE 23).
REMOVING THE ENERGY RECOVERY WHEEL SEGMENTS
FIGURE 23
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