Carrier 50JC04-06, Инструкции по обслуживанию и техническому обслуживанию

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CONVENIENCE OUTLETS
Convenience Outlets
Two types of convenience outlets are offered on 50JC models:
non-powered and unit-powered. Both types provide a 125 vac
ground-fault circuit-interrupt (GFCI) duplex receptacle rated at
15A behind a hinged waterproof access cover, located on the
end panel of the unit. See Fig. 27.
Fig. 27 — Convenience Outlet Location
Installing Weatherproof Cover
A weatherproof while-in-use cover for the factory installed
convenience outlets is now required by UL standards. This
cover cannot be factory-mounted due to its depth. The cover
must be installed at unit installation. For shipment, the conve -
nience outlet is covered with a blank cover plate.
The weatherproof cover kit is shipped in the unit’s control box.
The kit includes the hinged cover, a backing plate and gasket.
NOTE: DISCONNECT ALL POWER TO UNIT AND CONVE -
NIENCE OUTLET. Use approved lockout/tag-out procedures.
1. Remove the blank cover plate at the convenience outlet;
discard the blank cover.
2. Loosen the two screws at the GFCI duplex outlet, until
approximately 1/2-in. (13 mm) under screw heads is
exposed.
3. Press the gasket over the screw heads. Slip the backing
plate over the screw heads at the keyhole slots and align
with the gasket; tighten the two screws until snug (do not
over-tighten).
4. Mount the weatherproof cover to the backing plate as
shown in Fig. 28.
Fig. 28 — Weatherproof Cover Installation
5. Remove two slot fillers in the bottom of the cover to per -
mit service tool cords to exit the cover.
6. Check cover installation for full closing and latching.
Non-Powered Type
This type requires the field installation of a general-purpose
125-v 15-A circuit powered from a source elsewhere in the
Excessive Head Pressure
Dirty outside. Replace filter.
Dirty outdoor coil (cooling). Clean coil.
Refrigerant overcharged. Recover excess refrigerant.
Air in system. Recover refrigerant, evacuate system, and recharge.
Condensing air restricted or air short-cycling. Determine cause and correct.
Head Pressure Too Low
Low refrigerant charge. Check for leaks; repair and recharge
Compressor scroll plates defective. Replace compressor
Restriction in liquid tube. Remove restriction.
Excessive Suction Pressure
High heat load. Check for source and eliminate.
Compressor scroll plates defective. Replace compressor.
Refrigerant overcharge. Recover excess refrigerant.
Suction Pressure Too Low
Dirty air filter (cooling). Replace filter.
Dirt or heavily iced outdoor coil (heating). Clean outdoor coil. Check defrost cycle operation.
Low refrigerant charge. Check for leaks; repair and recharge.
Metering device or low side restricted Remove source of restriction.
Insufficient indoor airflow (cooling mode). Increase air quantity. Check filter and replace if necessary.
Temperature too low in conditioned area. Reset thermostat.
Field-installed filter drier restricted. Replace.
Outdoor fan motor(s) not operating (heating). Check fan motor operation.
Table 2 — Troubleshooting (cont)
SYMPTOM CAUSE SOLUTION
WARNING
ELECTRICAL OPERATION HAZARD
Failure to follow this warning could result in personal injury or
death.
Units with convenience outlet circuits may use multiple
disconnects. Check convenience outlet for power status before
opening unit for service. Locate its disconnect switch, if
appropriate, and open it. Lock-out and tag-out this switch, if
necessary.
CONVENIENCE
OUTLET GFCI
PWD-CO FUSE
SWITCH
PWD-CO
TRANSFORMER
COVER - WHILE-IN-USE
WEATHERPROOF
BASEPLATE FOR
GFCI RECEPTACLE
GASKET
GFCI RECEPTACLE
NOT INCLUDED
TOP
TO
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TOP
WET LOC
ATIONS
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