3
UNIT ARRANGEMENT AND ACCESS
General
Fig. 1 and Fig. 2 show general unit arrangement and
access locations.
INDOOR BLOWER
ACCESS
CONTROL BOX
COMPRESSORS
(D08-12 only)
C09190
Fig. 1 -- Typical Access Panel Location (Front)
OUTDOOR-AIR OPENING
AND INDOOR COIL
ACCESS PANEL
COMPRESSOR
ACCESS PANEL
(04 - 07 only)
FILTER ACCESS
PANEL
C08449
Fig. 2 -- Typical Access Panel Locations (Rear)
Routine Maintenance
These items should be part of a routine maintenance
program, to be checked every month or two, until a
specific schedule for each can be identified for this
installation:
Quarterly Inspection (and 30 days after initial start):
S
Replace return air filter
S
Clean outdoor hood inlet filters
S
Check belt tension
S
Check belt condition
S
Inspect pulley alignment
S
Check fan shaft bearing locking collar tightness
S
Check outdoor coil cleanliness
S
Check condensate drain
Seasonal Maintenance
The following items should be checked at the beginning
of each season (or more often if local conditions and
usage patterns dictate):
Air Conditioning/Heat Pump:
S
Ensure outdoor fan motor mounting bolts are tight
S
Ensure compressor mounting bolts are tight
S
Inspect outdoor fan blade positioning
S
Ensure control box is clean
S
Check control box wiring condition
S
Ensure wire terminals are tight
S
Check refrigerant charge level
S
Ensure indoor coils are clean
S
Check supply blower motor amperage
Electric Heating:
S
Inspect power wire connections
S
Ensure fuses are operational
S
Ensure manual--reset limit switch is closed
Economizer or Outside Air Damper
S
Check inlet filters condition
S
Check damper travel (economizer)
S
Check gear and dampers for debris and dirt
Air Filters and Screens
Each unit is equipped with return air filters. If the unit has
an economizer, it will also have an outside air screen. If a
manual outside air damper is added, it will also have a an
inlet air screen.
Each of these filters and screens will need to be
periodically cleaned or replaced.
RETURN AIR FILTERS:
EQUIPMENT DAMAGE HAZARD
Failure to follow this CAUTION can result in
premature wear and damage to equipment.
DO NOT OPERATE THE UNIT WITHOUT THE
RETURN AIR FILTERS IN PLACE.
Dirt and debris build--up on components can cause
premature
wear
on
components
resulting
in
component failure.
CAUTION
Return Air Filters are disposable fiberglass filters. Access
to the filters is through the lift--out filter access panel
located on the rear side of the unit, above the indoor coil
access panel. See Fig. 2.
Summary of Contents for WeatherMaster 50HCQA04
Page 38: ...38 C10818 Fig 56 RTU OPEN Control Module ...
Page 78: ...78 APPENDIX V WIRING DIAGRAMS C150427 Fig 58 50HCQA04 A05 Control Wiring Diagram 575 3 60 ...
Page 80: ...80 APPENDIX V WIRING DIAGRAMS C160013 Fig 60 50HCQ 06 Control Wiring Diagram 575 3 60 ...
Page 84: ...84 APPENDIX V WIRING DIAGRAMS C150243 Fig 64 50HCQ 04 05 06 Power Wiring Diagram 208 230 1 60 ...
Page 85: ...85 APPENDIX V WIRING DIAGRAMS C12347 Fig 65 50HCQ 04 05 06 Power Wiring Diagram 208 230 3 60 ...
Page 86: ...86 APPENDIX V WIRING DIAGRAMS C12353 Fig 66 50HCQ 04 05 06 Power Wiring Diagram 460 3 60 ...
Page 87: ...87 APPENDIX V WIRING DIAGRAMS C12354 Fig 67 50HCQ 04 05 06 Power Wiring Diagram 575 3 60 ...
Page 91: ...91 APPENDIX V WIRING DIAGRAMS C12356 Fig 71 50HCQ 12 Power Wiring Diagram 460 3 60 575 3 60 ...
Page 92: ...92 APPENDIX V WIRING DIAGRAMS C150432 Fig 72 50HCQ PremierLink Control Diagram ...
Page 93: ...93 APPENDIX V WIRING DIAGRAMS C12359 Fig 73 50HCQ RTU Open Control Diagram ...