Factory-Option Thru-Base Connections - Carrier 50HCQ12 Installation Instructions Manual

Single package rooftop heat pump with puron r-410a refrigerant
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UNIT
CONNECT
VOLTAGE
AS
208, 230
240
460
480
575
600
Fig. 31 — Powered Convenience Outlet Wiring
Duty Cycle
The unit-powered convenience outlet has a duty cycle limitation.
The transformer is intended to provide power on an intermittent
basis for service tools, lamps, etc; it is not intended to provide 15-
amps loading for continuous duty loads (such as electric heaters
for overnight use). Observe a 50% limit on circuit loading above 8
amps. (i.e., limit loads exceeding 8-amps to 30 minutes of opera-
tion every hour).
Test the GFCI receptacle by pressing the TEST button on the face
of the receptacle to trip and open the receptacle. Check for proper
grounding wires and power line phasing if the GFCI receptacle
does not trip as required. Press the RESET button to clear the
tripped condition.
Fuse On Power Type
The factory fuse is a Bussman "Fusetron"
screw-in (Edison base) type plug fuse.
WARNING
ELECTRICAL OPERATION HAZARD
Failure to follow this warning could result in personal injury or
death.
Using unit-mounted convenience outlets: Units with unit-
mounted convenience outlet circuits will often require that two
disconnects be opened to de-energize all power to the unit.
Treat all units as electrically energized until the convenience
outlet power is also checked and de-energization is confirmed.
Observe National Electrical Code Article 210, Branch Cir-
cuits, for use of convenience outlets.
1. Bussman and Fusetron are trademarks of Cooper Technologies
Company.
PRIMARY
TRANSFORMER
CONNECTIONS
TERMINALS
L1: RED + YEL
H1 + H3
L2: BLU + GRA
H2 + H4
L1: RED
H1
Splice BLU + YEL
H2 + H3
L2: GRA
H4
L1: RED
H1
L2: GRA
H2
T-15, non-renewable
1
Installing Weatherproof Cover
A weatherproof while-in-use cover for the factory-installed conve-
nience outlets is now required by UL standards. This cover cannot
be factory-mounted due its depth; it must be installed at unit instal-
lation. For shipment, the convenience 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.
DISCONNECT ALL POWER TO UNIT AND CONVE-
NIENCE OUTLET.
Remove the blank cover plate at the convenience outlet; discard
the blank cover.
Loosen the two screws at the GFCI duplex outlet, until approxi-
mately
/
-in. (13 mm) under screw heads are exposed. Press the
1
2
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).
Mount the weatherproof cover to the backing plate as shown in
Fig. 32. Remove two slot fillers in the bottom of the cover to per-
mit service tool cords to exit the cover. Check for full closing and
latching.
COVER - WHILE-IN-USE
WEATHERPROOF
Fig. 32 — Weatherproof Cover Installation

FACTORY-OPTION THRU-BASE CONNECTIONS

This service connection kit consists of a
connector and a 1
/
-in. electrical bulkhead connector, all factory-
1
2
installed to the basepan cover plate. Remove the cover plate from
the shipping bracket and attach to basepan with 8 screws provided.
The
/
-in. bulkhead connector enables the low-voltage control
1
2
wires to pass through the basepan. The 1
connector allows the high-voltage power wires to pass through the
basepan. See Fig. 33.
Check tightness of connector lock nuts before connecting electri-
cal conduits.
Field-supplied and field-installed liquidtight conduit connectors
and conduit may be attached to the connectors on the basepan.
Pull correctly rated high voltage and low voltage wires through
appropriate conduits. Connect the power conduit to the internal
disconnect (if unit is so equipped) or to the external disconnect
(through unit side panel). Remove one of the two knockouts locat-
ed on the bottom left side of the unit control box. Use this hole for
the control conduit.
18
GFCI RECEPTACLE
NOT INCLUDED
GASKET
BASEPLATE FOR
GFCI RECEPTACLE
/
-in. electrical bulkhead
1
2
/
-in. electrical bulkhead
1
2

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