10
Freshman Series - Owner's Manual - Installation, Operation, and Service Instruction - Version 1.1 EN
Never operate unit without
so may damage internal
components and/or cause
Figure 1 | Changing Filters
5.3 Filter Maintenance
Filtering Out Trouble
Dirty air lters will cause air ow reduction through your unit. If excessive air loss
occurs, the unit may freeze up when in the air conditioning mode, or cycle on high
and limit safety controls during heating mode. If this condition persists the unit may
be locked out by the safety circuits.
Each unit will be equipped with either 1” or 2” disposable pleated lters, a 1/4”
washable lter, or a combination of washable and disposable lters.
Cleaning or Changing Filters
(Recommended once a month or as required).
1. Turn OFF electrical supply to unit.
2. Open the upper and lower front service panels with the key provided. Keys may
vary.
3. Slide out dirty lters and replace with new ones (Fig. 1) Or wash lters (if
permanent) with water, ushing in opposite direction of air ow, let dry and
replace.
4. Close the upper and lower front service panel and lock with key.
HAZARDOUS VOLTAGE
Disconnect all power before
Failure to observe this
instruction may result in
death or serious injury.
Disposable Filter(s)
General Preventative Maintenance
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