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Installing Weatherproof Cover: A weatherproof while-in-
use cover for the factory-installed convenience outlets is now
required by UL standards. This cover cannot be factory-
mounted due its depth; it must be installed at unit installation.
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 gas-
ket.
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; dis-
card the blank cover.
Loosen the two screws at the GFCI duplex outlet, until ap-
proximately
1
/
-in. (13 mm) under screw heads are exposed.
2
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. 31. Remove two slot fillers in the bottom of the
cover to permit service tool cords to exit the cover. Check for
full closing and latching.
COVER – WHILE-IN-USE
WEATHERPROOF
Fig. 31 — Weatherproof Cover Installation
Non-powered type: This type requires the field installation of
a general-purpose 125-volt 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 stepdown the main power supply voltage to the unit
to 115-v at the duplex receptacle. 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. 30.
The primary leads to the convenience outlet transformer are
not factory-connected. Selection of primary power source is a
customer-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 service power to the unit when the unit disconnect
switch or HACR switch is open. Other connection methods
will result in the convenience outlet circuit being de-energized
when the unit disconnect or HACR switch is open. See Fig. 32.
RECEPTACLE
NOT SHOWN
BASE PLATE FOR
GFCI RECEPTACLE
22
UNIT
CONNECT
VOLTAGE
AS
CONNECTIONS
L1: RED +YEL
208,230
240
L2: BLU + GRA
460
480
Splice BLU + YEL
575
600
Fig. 32 — Powered Convenience Outlet Wiring
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 "Fuse-
tron" T-15, non-renewable screw-in (Edison base) type plug
fuse.
NOTICE
Convenience Outlet Utilization
Maximum Continuous use : 8 Amps 24/7
Fig. 33 — Convenience Outlet Utilization Notice Label
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 Circuits,
for use of convenience outlets.
Factory Option Thru-Base Connections — This service con-
nection kit consists of a
/
-in. electrical bulkhead connector
1
2
and a 1
1
/
-in. electrical bulkhead connector, all factory-
4
installed in the embossed (raised) section of the unit basepan in
the condenser section. The
1
the low-voltage control wires to pass through the basepan. The
1
1
/
-in. electrical bulkhead connector allows the high-voltage
4
power wires to pass through the basepan. See Fig. 34.
PRIMARY
TRANSFORMER
TERMINALS
H1 + H3
H2 + H4
L1: RED
H1
H2 + H3
L2: GRA
H4
L1: RED
H1
L2: GRA
H2
50HJ542739
/
-in. bulkhead connector enables
2
B
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