Carrier WeatherMaker 48TC A/B07 Series, Руководство по установке

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Fig. 59 — Weatherproof Cover Installation
Non-powered type
Requires the field installation of a general-purpose 125-v 15-A
circuit powered from a source elsewhere in the building. Observe
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 utility box
containing the duplex receptacle.
Unit-powered type
A unit-mounted transformer is factory-installed to step-down 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. 57 and 58.
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 or HACR breaker switch; this will provide ser -
vice power to the unit when the unit disconnect switch or HACR
switch is open. Other connection methods will result in the conve -
nience outlet circuit being de-energized when the unit disconnect
or HACR switch is open. See Fig. 60. On a unit without a unit-
mounted disconnect, connect the source leads to the main terminal
block (TB1 for sizes 07-14, TB3 for size 16).
On size 16 units, if the convenience outlet transformer is connect -
ed to the line side of a field disconnect, the conduit provided with
the unit must be used to protect the wires as they are routed from
the transformer to the field disconnect. The end of the conduit
with the straight connector attaches to the field disconnect. The
other end does not need to connect to the transformer; however,
the conduit must be routed so that all wiring is either in the conduit
or behind the access panel.
On size 16 units, if the convenience outlet transformer is connect -
ed to the line side of the factory disconnect option, route the wires
through the web bushing located on the bottom of the disconnect
box. For the load-side wiring to the factory option disconnect,
route the wires through the hole on the right side of the disconnect.
Be sure to create a drip loop at least 6 inches long.
ALL UNITS
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.
Unit-mounted convenience outlets
Outlets will often require that two disconnects be opened to de-en -
ergize all power to the unit. Treat all units as electrically energized
until the convenience outlet power is also checked and de-energi -
zation is confirmed. Observe National Electrical Code Article 210,
Branch Circuits, for use of convenience outlets.
Fig. 60 — Powered Convenience Outlet Wiring
Fuse on power type
The factory fuse is a Bussman “Fusetron” T-15, non-renewable
screw-in (Edison base) type plug fuse. See Fig. 61 for maximum
continuous use amp limitations.
Fig. 61 — Convenience Outlet Utilization Notice Label
FACTORY-OPTION THRU-BASE CONNECTIONS (ELEC -
TRICAL CONNECTIONS) (SIZE 07-14)
This service connection kit consists of a
1
/
2
-in. NPT gas adapter
fitting (brass), a
1
/
2
in. electrical bulkhead connector and a
3
/
4
-in.
electrical bulkhead connector, all factory-installed in the embossed
(raised) section of the unit basepan in the condenser section. The
3
/
4
in. bulkhead connector enables the low-voltage control wires to
pass through the basepan. The
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 liquid tight conduit connectors
and conduit may be attached to the connectors on the basepan.
Pull correctly rated high voltage through appropriate conduits.
Connect the power conduit to the internal disconnect (if unit is so
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+YEL
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