Lennox VRF VVCA Series User Manual

22
Air Filter
The VVCA air lter is eld-provided and installed. Follow
these guidelines when selecting and installing the lter.
• External lter or other means of ltration is required.
• Filter application and placement are critical to airow,
which may a󰀨ect the heating and cooling system
performance. Reduced airow can shorten the life
of the system’s major components, such as motor,
limits, elements, heat relays, evaporator coil or
compressor. Consequently, we recommend that the
return air duct system have only one lter location.
For systems with a return air lter grille or multiple
lter grilles, can have a lter installed at each of the
return air openings.
• If adding high e󰀩ciency lters or electronic air
ltration systems, it is very important that the air
ow is not reduced. If air ow is reduced the overall
performance and e󰀩ciency of the unit will be
reduced.
• When sizing the return air lter grille, a minimum
surface area of 200 sq. in. per ton is recommended.
Air Filter Removal
1. Remove screws, remove lter cabinet cover.
2. Remove air lter.
3. Clean the air lter using vacuum or water. For heavy
accumulations, use soft brush and mild detergent.
4. Dry lter completely before use.
FILTER RAILS
FILTER COVER
MANUAL BOLT
RETURN AIR OPENING DEPTH
Figure 18. Air Filter Location
Figure 19. Air Filter Cleaning
WARNING
Do not operate the system without lters. A portion of
the dust entrained in the air may temporarily lodge in the
duct runs and at the supply registers. Any circulated dust
particles could be heated and charred by contact with
the air handler elements.
This residue could soil ceilings, walls, drapes, carpets
and other articles in the house.
Soot damage may occur with lters in place, when
certain types of candles, oil lamps or standing pilots are
burned.
Model Filter Size Width Depth Height
18/24/30
18x20 in 18-1/4 in 21-5/8 in 1 in
457x508 mm 464 mm 549 mm
25.4
mm
36/48/54
20x22 in 20-3/4 in 24 in 1 in
508x559 mm 527 mm 610 mm
25.4
mm
IMPORTANT
Do not double lter the return air duct system. Do not
lter the supply air duct system. This will change the
performance of the unit and reduce airow.

Lennox VRF VVCA Series Specifications

General

Brand	Lennox
Model	VRF VVCA Series
Category	Air Handlers
Language	English