Bard WFERV-A-4, Руководство по установке

Страница: 17 / 21

Manual 2100-495A
Page
17 of 21
QUARTERLY MAINTENANCE
1. Inspect mist eliminator/prefilter and clean if
necessary. This filter is located in the fresh air
intake hood on the front of the unit. This is an
aluminum mesh filter and can be cleaned with
water and any detergent not harmful to aluminum.
2. Inspect wall mount unit filter and clean or replace
as necessary. This filter is located either in the
unit, in a return air filter grille assembly, or both.
If in the unit it can be accessed by removing the
lower service door on the front of the unit. If in a
return air filter grille, by hinging the grille open to
gain access.
3. Inspect energy recovery ventilator for proper wheel
rotation and dirt buildup. This can be done in
conjunction with Item 2 above. Energize the
energy recovery ventilator after inspecting the filter
and observe for proper rotation and/or dirt buildup.
4. Recommended energy recovery wheel cleaning
procedures follow: Disconnect all power to unit.
Remove the lower service door of the wall mount
unit to gain access to the energy recovery
ventilator.
5. Remove the front access panel on the ventilator.
Unplug amp connectors to cassette motors. Slide
energy recovery cassette out of ventilator.
6. Use a shop vacuum with brush attachment to clean
both sides of the energy recovery wheels.
7. Reverse shop vacuum to use as a blower and blow
out any residual dry debris from the wheel.
NOTE: Discoloration and staining of the wheel
does not affect its performance. Only
excessive buildup of foreign material needs
to be removed.
8. If any belt chirping or squealing noise is present,
apply a small amount of LPS-1 or equivalent dry
film lubricant to the belt.
ANNUAL MAINTENANCE
1. Inspect and conduct the same procedures as
outlined under Quarterly Maintenance.
2. To maintain peak latent (moisture) removal
capacity, it is recommended that the energy
recovery wheels be sprayed with a diluted nonacid
based evaporator coil cleaner or alkaline detergent
solution such as 409.
NOTE: Do not use acid based cleaners, aromatic
solvents, temperatures in excess of 170°F or
steam. Damage to the wheel may result.
Do not disassemble and immerse the entire
heat wheel in a soaking solution, as bearing
and other damage may result.
3. Rinse wheel thoroughly after application of the
cleaning solution, and allow to drain before
reinstalling.
4. No re-lubrication is required to heat wheel
bearings of the drive motor, or to the intake and
exhaust blower motors.
5. If any belt chirping or squealing noise is present,
apply a small amount of LPS-1 or equivalent dry
film lubricant to the belt.