located on the rear side of the unit, above the evaporator/return air access panel. (See Fig. 1.)
To remove the 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 extract the filters from the filter rack.
4.Replace these filters as required with similar replace- ment filters of same size.
To
1.Slide the top of the panel up under the unit top panel.
2.Slide the bottom into the side channels.
3.Push the bottom flange down until it contacts the top of the lower panel (or economizer top).
IMPORTANT: DO NOT OPERATE THE UNIT WITHOUT THESE FILTERS!
Outside Air Hood
Outside air hood inlet screens are permanent
Economizer Inlet Air Screen
This air screen is retained by spring clips under the top edge of the hood. (See Fig. 3.)
17 1/4”
DIVIDER
OUTSIDE
AIR
HOOD
CLEANABLE
ALUMINUM FILTER FILTER
BAROMETRIC RELIEF
FILTER
CLIP
C06027
Fig. 3 - Filter Installation
To remove the filter, open the spring 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.)
C07156
Fig. 4 - Screens Installed on Outdoor-Air Hood
(Sizes 7-1/2 to 12-1/2 Tons Shown)
To remove the screen, loosen the screws in the top retainer and slip the retainer up until the filter can be removed.
C07087
Fig. 5 - Belt Drive Motor Mounting
SUPPLY FAN (BLOWER) SECTION
!WARNING
ELECTRICAL SHOCK HAZARD
Failure to follow this warning could cause personal injury or death.
Before performing service or maintenance operations on the fan system, shut off all unit power and
Supply Fan (Belt-Drive)
The supply fan system consists of a
Belt
Check the belt condition and tension quarterly. Inspect the belt for signs of cracking, fraying or glazing along the
50TC
3