Bryant 548J*14D Series, Руководство по установке

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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 gasket.
DISCONNECT ALL POWER TO UNIT AND
CONVENIENCE OUTLET.
Remove the blank cover plate at the convenience outlet;
discard the blank cover.
Loosen the two screws at the GFCI duplex outlet, until
approximately
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 permit service tool cords to exit the cover.
Check for full closing and latching.
RECEPTACLE
NOT INCLUDED
COVER – WHILE-IN-USE
WEATHERPROOF
BASE PLATE FOR
GFCI RECEPTACLE
C09022
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
electrical 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 located on the
bottom left side of the unit control box. Use this hole for
the control conduit.
LOW VOLTAGE
CONDUIT
CONNECTOR
HIGH VOLTAGE
CONDUIT
CONNECTOR
C10017
Fig. 33 -- Thru--Base Connection Fittings
Units Without Thru--Base Connections —
1. Install power wiring conduit through side panel open-
ings. Install conduit between disconnect and control
box.
2. Install power lines to terminal connections as shown
in Fig. 25.
Field Control Wiring —
The 548J*14D unit requires an external temperature control
device. This device can be a thermostat emulation device
provided as part of a third--party Building Management
System or the RTU Open controller (RTU Open controller is
available as a factory--installed option only).
Thermostat —
Install a Bryant--approved accessory 2 stage
Cooling/Heating thermostat according to installation
instructions included with the accessory. The 548J*14D
models do not require a thermostat with an O function to
control the reversing valve operation. If using an
electronic thermostat, configure it for “non--heat pump”
operation. Locate the thermostat accessory on a solid wall
in the conditioned space to sense average temperature in
accordance with the thermostat installation instructions.
If the thermostat contains a logic circuit requiring 24--v
power, use a thermostat cable or equivalent single leads of
different colors with minimum of seven leads. If the
thermostat does not require a 24--v source (no “C”
connection required), use a thermostat cable or equivalent
with minimum of six leads. Check the thermostat
installation instructions for additional features which
might require additional conductors in the cable.
For wire runs up to 50 ft. (15 m), use no. 18 AWG
(American Wire Gage) insulated wire [35
_
C (95
_
F)
minimum]. For 50 to 75 ft. (15 to 23 m), use no. 16 AWG