3
OPERATIONAL TEST ALERT
Failure to follow this ALERT can result in an
unnecessary evacuation of the facility.
Pressing the cont roller’s test/reset switch for longer
than seven sec onds will put the duct detector into the
ala rm state and activate al l automatic alarm responses.
NOTICE
IMPORTANT: Lockout/Tagout is a term used when
electrical power switches are physically locked
preventing power to the unit. A placard is placed on
the power switch alerting service personnel that the
power is disconnected.
UNIT ARRANGEMENT AND
ACCESS
General
Fig. 1 and Fig. 2 show general unit arrangement and
access locations.
FILTER ACCESS PANEL
OUTDOOR-AIR OPENING AND
INDOOR COIL ACCESS PANEL
COMPRESSOR
ACCESS PANEL (04-07 only)
C08449
Fig. 1 -- Typical Access Panel Locations
BLOWER
ACCESS
PANEL
CONTROL BOX
COMPRESSOR
(08-09 only)
C10266
Fig. 2 -- Blower Access Panel Location
Routine Maintenance
These items should be part of a routine maintenance
program, to be checked every m onth or two, until a
specific schedule for each can be identified for this
installation:
Quarterly Inspection (and 30 days after initial start)
S Return air filter replacement
S Outdoor hood inlet filters cleaned
S Belt tension checked
S Belt condition checked
S Pulley alignment checked
S Fan shaft be aring locking collar tightness checked
S Condenser coil cleanliness checked
S Condensate drain checked
Seasonal Maintenance
These items should be c hecked at the beginning of each
season (or more often if local conditions and usage
patterns dictate):
Air Conditioning
S Condenser fan motor mounting bolts tightness
S Compressor mounting bolts
S Condenser fan blade positioning
S Control box cleanliness and wiring condition
S Wire terminal tightness
S Refri gerant charge level
S Evaporator coil cleaning
S Evaporator blower motor amperage
Heating
S Heat exchanger flue passageways cleanliness
S Gas burner condition
S Gas manifold pressure
S Heat ing temperature rise
Economizer or Outside Air Damper
S 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
manua l outside air damper is added, an inlet air screen
will also be present.
48HC
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