3
UNIT ARRANGEMENT AND
ACCESS
General
Fig. 1 and Fig. 2 show general unit arrangement and
access locations.
OUTDOOR AIR
HOOD
CONTROL BOX
ACCESS PANEL
RETURN AIR
FILTER AND
INDOOR COIL
ACCESS PANEL
SUPPLY FAN
HEATING SECTION
GAS SECTION
ACCESS PANEL
OUTDOOR
FANS/MOTORS
DISCONNECT
CONVENIENCE
OUTLET
COMPRESSOR
(CIRCUIT A)
CONDENSER
COIL
(CIRCUIT A)
C12560
Fig. 1
−
Access Panels and Components, Front
CONDENSER COIL
CIRCUIT A
CONDENSER COIL
CIRCUIT B
COMPRESSOR
CIRCUIT B
C09505
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)
The 50TC units should be inspected and serviced every
three months.
Return air filter replacement
Outdoor hood inlet filters cleaned
Belt tension checked
Belt condition checked
Pulley alignment checked
Fan shaft bearing locking collar tightness checked
Condenser coil cleanliness checked
Condensate drain checked
Seasonal Maintenance
These items should be checked at the beginning of each
season (or more often if local conditions and usage
patterns dictate):
Air Conditioning
Condenser fan motor mounting bolts tightness
Compressor mounting bolts
Condenser fan blade positioning
Control box cleanliness and wiring condition
Wire terminal tightness
Refrigerant charge level
Evaporator coil cleaning
Evaporator blower motor amperage
Heating
Heat exchanger flue passageways cleanliness
Gas burner condition
Gas manifold pressure
Heating temperature rise
Economizer or Outside Air Damper
Inlet filters condition
Check damper travel (economizer)
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, an inlet air screen
will also be present.
Each of these filters and screens will need to be
periodically replaced or cleaned.
Return Air Filters
Return air filters are disposable fiberglass media type.
Access to the filters is through the small lift
−
out panel
located on the rear side of the unit, above the
evaporator/return air access panel. (See Fig. 1.)
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 on heat exchangers and coils can cause
excessive current use, resulting in motor failure.
CAUTION
!
Содержание 50TC*17 Series
Страница 39: ...39 C10818 Fig 44 RTU OPEN Control Module...
Страница 68: ...68 APPENDIX IV WIRING DIAGRAMS C150425 Fig 57 50TC D17 D28 Control Diagram 208 230 3 60 460 575 3 60...
Страница 69: ...69 APPENDIX IV WIRING DIAGRAMS C150370 Fig 58 50TC D30 Control Diagram 208 230 3 60...
Страница 70: ...70 APPENDIX IV WIRING DIAGRAMS 5 C150368 Fig 59 50TC D30 Control Diagram 460 575 3 60...
Страница 71: ...71 APPENDIX IV WIRING DIAGRAMS C150373 Fig 60 50TC D17 D30 Power Diagram 208 230 3 60...
Страница 72: ...72 APPENDIX IV WIRING DIAGRAMS C12399 Fig 61 50TC D17 D30 Power Diagram 460 575 3 60...
Страница 74: ...74 APPENDIX IV WIRING DIAGRAMS C150376 Fig 63 50TC D17 D30 Power Diagram 208 230 3 60 with Humidi MiZer...
Страница 75: ...75 APPENDIX IV WIRING DIAGRAMS C150378 Fig 64 50TC D17 D30 Power Diagram 460 3 60 with Humidi MiZer...
Страница 76: ...76 APPENDIX IV WIRING DIAGRAMS C150379 Fig 65 50TC D17 D30 Power Diagram 575 3 60 with Humidi MiZer...
Страница 77: ...77 APPENDIX IV WIRING DIAGRAMS C12690 Fig 66 50TC PremierLinkt System Control Wiring Diagram...
Страница 78: ...78 APPENDIX IV WIRING DIAGRAMS C12691 Fig 67 50TC RTU OPEN Wiring Diagram...
Страница 79: ...79 APPENDIX IV WIRING DIAGRAMS C12689A Fig 68 50TC SAV VFD System Control Wiring Diagram...
