Carrier 48TC 04 Series Service And Maintenance Instructions page 4

CAUTION
!
PERSONAL INJURY HAZARD
Failure to follow this caution may result in premature
wear and damage to equipment.
Dirt and debris can collect on heat exchangers and
coils and can cause excessive current used resulting in
motor failure.
IMPORTANT:
DO NOT
WITHOUT THESE FILTERS!
Removing the Return Air Filters:
1. Grasp the bottom flange of the upper panel.
2. Lift up and swing the bottom out until the panel dis-
engages and pulls out.
3. Reach inside and remove the filters from the filter
rack.
4. Replace these filters, as required, with filters of
same size and media type.
Reinstalling the Access Panel:
1. Slide the top of the panel up under the unit's top
panel.
2. Slide the bottom flange into the side channels.
3. Push the bottom flange down until it contacts the top
of the lower panel (or economizer top).
Outside Air Hood
Outside air hood inlet screens are permanent aluminum
mesh- - type filters. Check screens for cleanliness. Remove
the screens when cleaning is required. Clean by washing
with hot low- - pressure water and soft detergent. Replace
all screens before restarting the unit. Observe the flow
direction arrows on the side of each filter frame when
installing.
Economizer Inlet Air Screen
This air screen is retained by filter clips under the top
edge of the hood. See Fig. 3.
OPERATE THE UNIT
17 1/4"
(438 mm)
DIVIDER
CLEANABLE
ALUMINUM
SCREEN
BAROMETRIC
RELIEF
Fig. 3 - - Inlet Air Screen Installation
Remove the screen by opening the filter clips. Re- - install
the filter by placing the screen in its track, then closing
the filter clips.
Manual Outside Air Hood Screen
This inlet screen is secured by a retainer angle across the
top edge of the hood. See Fig. 4.
Remove the screen by loosening the screws in the top
retainer and sliding the retainer up until the filter can be
removed. Reinstall by placing the frame in its track,
rotating the retainer back down and tightening all screws.
Fig. 4 - - Screens Installed on Outdoor- -Air Hood
(Sizes 7- -1/2 to 15 Tons Shown)
4
OUTSIDE
AIR
HOOD
FILTER
CLIP
C06027
C07156