66
SEALS
Check seal alignment, check for wear and cracking, Clean if
required.
WHEEL
The wheel is designed to last the life of the equipment. It should be
protected by a MERV 8 filter to keep dust and dirt from the heat
transfer surface. The wheel is somewhat self cleaning through its
normal action of rotating in and out of countercurrent air flow
streams. If the wheel becomes dirty, it may be cleaned by blowing
out the wheel with compressed air (20 psig maximum). In cases of
severe contamination, the wheel may be washed with water fol-
lowing the procedures outlined as follows:
1. Turn off the unit and disconnect power.
2. Open the ERV access door and slide the cassette assembly
out of the unit until the stop is reached.
3. With the wheel out, wash the media carefully with water.
4. Once clean allow the media to dry. This may take several
hours.
5. Re-install the ERV in the unit and close the access door.
6. Operate the unit. It may take several hours for the desiccant to
completely dry and operate at full efficiency.
IMPORTANT: DO NOT USE A PRESSURE WASHER, as it
may damage the wheel and impede proper operation.
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