Carrier WeatherMaster 50HCQ 04 Series, Руководство по установке, Страница: 17 / 48

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Fig. 25 — Weatherproof Cover Installation
Non-Powered Convenience Outlet
This type requires the field installation of a general-purpose 125v
15A 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 125v power supply conductors into the bottom of the utility
box containing the duplex receptacle.
Unit-Powered Convenience Outlet
A unit-mounted transformer is factory-installed to step down the
main power supply voltage to the unit to 115v at the duplex recep-
tacle. This option also includes a manual switch with fuse, located
in a utility box and mounted on a bracket behind the convenience
outlet; access is through the unit’s control box access panel. See
Fig. 24.
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. 26.
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 “Fusetron” 1 T-15, non-renewable
screw-in (Edison base) type plug fuse.
Fig. 26 — 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. Convenience outlet usage rating:
• Continuous usage: 8 amps maximum
• Intermittent usage: Up to 15 amps maximum for up to
2 hours maximum
See Fig. 27.
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.
Fig. 27 — Convenience Outlet Utilization
Notice Label
FACTORY OPTION THRU-BASE CONNECTIONS
This service connection kit consists of a
1 /
2
-in. electrical bulkhead
connector and a 3 /
4
-in. electrical bulkhead connector, connected to
an “L” bracket covering the embossed (raised) section of the unit
basepan in the condenser section (see Fig. 28 for shipping
position). The 3 /
4
-in. bulkhead connector enables the low-voltage
control wires to pass through the basepan. The 1 /
2
-in. bulkhead
1. Bussman and Fusetron are trademarks of Cooper Technologies
Company.
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
20 8 , 230 240
L1: RED + YEL
L2: BLU + GRA H1 + H3
H2 + H4
460 4 8 0
L1: RED
Splice BLU + YEL
L2: GRA H1
H2 + H3
H4
575 600
L1: RED
L2: GRA H1
H2