Convenience Outlets; Installing Weatherproof Cover; Non-Powered Type - Carrier 50JC04-06 Service And Maintenance Instructions

SYMPTOM
Excessive Head Pressure
Head Pressure Too Low
Excessive Suction Pressure
Suction Pressure Too Low

CONVENIENCE OUTLETS

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 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.
CONVENIENCE
OUTLET GFCI
PWD-CO FUSE
SWITCH
PWD-CO
TRANSFORMER
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
Table 2 — Troubleshooting (cont)
CAUSE
Dirty outside.
Dirty outdoor coil (cooling).
Refrigerant overcharged.
Air in system.
Condensing air restricted or air short-cycling.
Low refrigerant charge.
Compressor scroll plates defective.
Restriction in liquid tube.
High heat load.
Compressor scroll plates defective.
Refrigerant overcharge.
Dirty air filter (cooling).
Dirt or heavily iced outdoor coil (heating).
Low refrigerant charge.
Metering device or low side restricted
Insufficient indoor airflow (cooling mode).
Temperature too low in conditioned area.
Field-installed filter drier restricted.
Outdoor fan motor(s) not operating (heating).
Replace filter.
Clean coil.
Recover excess refrigerant.
Recover refrigerant, evacuate system, and recharge.
Determine cause and correct.
Check for leaks; repair and recharge
Replace compressor
Remove restriction.
Check for source and eliminate.
Replace compressor.
Recover excess refrigerant.
Replace filter.
Clean outdoor coil. Check defrost cycle operation.
Check for leaks; repair and recharge.
Remove source of restriction.
Increase air quantity. Check filter and replace if necessary.
Reset thermostat.
Replace.
Check fan motor operation.
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.
COVER - WHILE-IN-USE
WEATHERPROOF
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
16
SOLUTION
GFCI RECEPTACLE
NOT INCLUDED
GASKET
BASEPLATE FOR
GFCI RECEPTACLE