Maintenance - EMI WLHA Installation & Operation Manual

mAintEnAnCE And troUBLEsHootinG proCEdUrE
! WArninG
Turn the POWER OFF to the unit be-
fore servicing or cleaning.
Service should be performed by a
qualified service agency and an annual
system check is recommended. EMI units
are designed and constructed for reliability
and long life with minimal maintenance. To
insure peak operating efficiency:
1. Clean air filter on a monthly basis or
when it is visibly dirty*:
a) The filter is accessed by removing
the front air intake access grille:
• Lift and remove grille
2. To clean the filter pull open the 2 clips
at the base of the filter and carefully pull
the filter out. Place the filter on a flat
surface.
WLCA/WLHA High Wall Evaporator

mAintEnAnCE

!
Close-up of filter clip
a) To vacuum: Use a brush attachment
and vacuum all visible dirt.
b) Or use a garden hose: Follow steps
1 and 2 then hose filter off. Let filter
dry before replacing.
*Allowing dust to collect on the filter will
result in reduction of air flow and cause
the unit to lose efficiency. This condition
will cause the unit to malfunction.
3. Replace filters and grille before running
unit.
28 www.enviromaster.com