
4
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.
CAUTION
!
IMPORTANT
: DO NOT OPERATE THE UNIT
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.
CLEANABLE
ALUMINUM
SCREEN
HOOD
FILTER
CLIP
OUTSIDE
AIR
BAROMETRIC
RELIEF
DIVIDER
17 1/4”
(438 mm)
C06027
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.
C07156
Fig. 4 -- Screens Installed on Outdoor--Air Hood
(Sizes 7--1/2 to 15 Tons Shown)
48TC
Summary of Contents for 48TC 04 Series
Page 27: ...27 COOLING CHARGING CHARTS cont C14064 Fig 33 Cooling Charging Charts 12 5 Ton 48TC...
Page 29: ...29 COOLING CHARGING CHARTS cont C13218 Fig 35 Charging Chart 48TC Size D16 48TC...
Page 40: ...40 C14052 Fig 51 Typical Smoke Detector System Wiring 48TC...
Page 122: ...122 APPENDIX III WIRING DIAGRAMS C12413 Fig 103 48TC A04 A07 Power Diagram 208 230 1 60 48TC...
Page 124: ...124 APPENDIX III WIRING DIAGRAM LIST C12415 Fig 105 48TC A04 A07 Power Diagram 575 3 60 48TC...
Page 126: ...126 APPENDIX III WIRING DIAGRAM LIST C13246 Fig 107 48TC A08 A12 Power Diagram 575 3 60 48TC...
Page 128: ...128 APPENDIX III WIRING DIAGRAM LIST C13247 Fig 109 48TC D08 D12 Power Diagram 575 3 60 48TC...
Page 130: ...130 APPENDIX III WIRING DIAGRAM LIST C13249 Fig 111 48TC D14 Power Diagram 575 3 60 48TC...
Page 139: ...139 APPENDIX III WIRING DIAGRAMS C12423 Fig 120 48TC D16 Power Diagram 575 3 60 48TC...
Page 143: ...143 APPENDIX III WIRING DIAGRAM LIST C13485 Fig 124 48TC 16 PremierLink Control Diagram 48TC...
Page 145: ...145 APPENDIX III WIRING DIAGRAM LIST C13487 Fig 126 48TC 16 RTU Open Control Diagram 48TC...
Page 146: ...146 APPENDIX III WIRING DIAGRAM LIST C14124 Fig 127 48TC D08 14 E08 14 W7220 2 Speed IFM 48TC...