Carrier 50KC04, Руководство по установке

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Fig. 25 — Convenience Outlet Location
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 to its depth; it must be installed at unit in -
stallation. 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. LOCK-OUT AND TAG-OUT ALL
POWER.
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. 26. 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. 26 — Weatherproof Cover Installation
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 building. Ob -
serve national and local codes when selecting wire size, fuse or
breaker requirements, and disconnect switch size and location.
Route 125-v power supply conductors into the bottom of the utili -
ty box containing the duplex receptacle.
Unit-Powered Type:
A unit-mounted transformer is factory-installed to stepdown the
main power supply voltage to the unit to 115-v at the duplex re -
ceptacle. This option also includes a manual switch with fuse, lo -
cated in a utility box and mounted on a bracket behind the conve -
nience outlet; access is through the unit’s control box access panel.
See Fig. 25.
The primary leads to the convenience outlet transformer are not
factory-connected. Selection of primary power source is a custom -
er option. If local codes permit, the transformer primary leads can
be connected at the line-side terminals on the unit-mounted non-
fused disconnect switch; this will provide service power to the unit
when the unit disconnect switch is open. Other connection meth -
ods will result in the convenience outlet circuit being de-energized
when the unit disconnect switch is open. See Fig. 27.
Fig. 27 — Powered Convenience Outlet Wiring
Using Unit-Mounted Convenience Outlets:
Units with unit-mounted convenience outlet circuits will often re -
quire that two disconnects be opened to de-energize all power to
the unit. Treat all units as electrically energized until the conve -
nience outlet power is also checked and de-energization is con -
firmed. Observe National Electrical Code Article 210, Branch Cir -
cuits, for use of convenience outlets.
Fuse on Power Type:
The factory fuse is a Bussman
1
“Fusetron” T-15, non-renewable
screw-in (Edison base) type plug fuse.
Duty Cycle:
The unit-powered convenience outlet has a duty cycle limita -
tion. The transformer is intended to provide power on an inter -
mittent basis for service tools, lamps, etc; it is not intended to
provide 15 amps loading for continuous duty loads (such as
CONVENIENCE
OUTLET GFCI
PWD-CO FU S E
S WITCH
PWD-CO TRAN S FORMER
CONTROL BOX
ACCE
SS PANEL
COVER - WHILE-IN-USE
WEATHERPROOF
BASEPLATE FOR
GFCI RECEPTACLE
GASKET
GFCI RECEPTACLE
NOT INCLUDED
TOP
TO
P
TOP
WET LOC
ATIONS
W
ET
L
OC
ATI
ON
S
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
1.
Bussmann and Fusetron are trademarks of Cooper Technologics
Company.