Unit Arrangement And Access; General; Routine Maintenance - Carrier 48FC 08-16 Series Service And Maintenance Instructions

UNIT ARRANGEMENT AND ACCESS

General

Figures 1-4 show general unit arrangement and access locations.
Fig. 1 — Typical Access Panel Locations
(size 8-14 units)
Fig. 2 — Typical Access Panel Locations
(size 16 units)
Fig. 3 — Blower Access Panel Location
(size 8-14 units)
Filter Access Panel
Indoor Coil Access Panel
Filter Access Panel
Indoor Coil Access Panel
Indoor
Access
Control Box
Panel
Access Panel
Fig. 4 — Blower Access Panel Location
(size 16 units)

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)
• Return air filter replacement
• Outdoor hood inlet filters cleaned
• 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
• Ensure outdoor fan motor mounting bolts are tight
• Ensure compressor mounting bolts are tight
• Inspect outdoor fan blade positioning
• Ensure control box is clean
• Check control box wiring condition
• Ensure wire terminals are tight
• Check refrigerant charge level
• Ensure indoor coils are clean
• Check supply blower motor amperage
Heating
• Heat exchanger flue passageways cleanliness
• Gas burner condition
• Gas manifold pressure
• Heating temperature rise
Economizer or Outside Air Damper
• Check inlet filters condition
• Check damper travel (economizer)
• Check gear and dampers for debris and dirt
3
Blower
Access Panels
Flue Control Box
Hood Access Panel