Carrier 50HCQ12, Руководство по установке

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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”
1
T-15, non-renewable
screw-in (Edison base) type plug fuse.
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
1
/
2
-in. (13 mm) under screw heads are exposed. 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).
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.
Fig. 32 — Weatherproof Cover Installation
FACTORY-OPTION THRU-BASE CONNECTIONS
This service connection kit consists of a
1
/
2
-in. electrical bulkhead
connector and a 1
1
/
2
-in. electrical bulkhead connector, all factory-
installed to the basepan cover plate. Remove the cover plate from
the shipping bracket and attach to basepan with 8 screws provided.
The
1
/
2
-in. bulkhead connector enables the low-voltage control
wires to pass through the basepan. The 1
1
/
2
-in. electrical bulkhead
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.
1. Bussman and Fusetron are trademarks of Cooper Technologies
Company.
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.
UNIT
VOLTAGE
CONNECT
AS
PRIMARY
CONNECTIONS
TRANSFORMER
TERMINALS
208, 230 240
L1: RED + YEL
L2: BLU + GRA
H1 + H3
H2 + H4
460 480
L1: RED
Splice BLU + YEL
L2: GRA
H1
H2 + H3
H4
575 600
L1: RED
L2: GRA
H1
H2
TOP
TO
P
TOP
WET LOCATIO
NS
W
ET
L
OC
AT
IO
NS
COVER - WHILE-IN-USE
WEATHERPROOF
BASEPLATE FOR
GFCI RECEPTACLE
GASKET
GFCI RECEPTACLE
NOT INCLUDED