Factory- - Option Thru- - Base Connections; Units Without Thru- - Base Connections; Field Control Wiring; Thermostat - Carrier 50TCQD14 Installation Instructions Manual

Installing 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.
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
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
1
approximately / -inch (13 mm) under screw heads are
2
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.
COVER – WHILE-IN-USE
WEATHERPROOF
Fig. 32 - - Weatherproof Cover Installation
Factory- - Option Thru- - Base Connections —
This service connection kit consists of a
electrical bulkhead connector and a 1
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
/ - - inch bulkhead connector enables the low- - voltage
2
control wires to pass through the basepan. The 1
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
Cover: A weatherproof
For shipment,
POWER TO UNIT
RECEPTACLE
NOT INCLUDED
BASE PLATE FOR
GFCI RECEPTACLE
1
/
2
1
/ - - inch electrical
2
1
/
2
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
the bottom left side of the unit control box. Use this hole for
the control conduit.
AND
LOW VOLTAGE
CONDUIT
CONNECTOR
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 50TCQD unit requires an external temperature
control device. This device can be a thermostat
(field- - supplied) or a PremierLinkt controller (available
as a factory- - installed option or as a field- - installed
accessory, for use on a Carrier Comfort Network
stand alone control) or the RTU Open controller for
Building Management Systems using non- - CCN protocols
(RTU Open controller is available as a factory- - installed
option only).
C09022
Thermostat —
Install a
Cooling/Heating thermostat according to installation
instructions included with the accessory. The 50TCQ
- - inch
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.
- - inch
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.
21
HIGH VOLTAGE
CONDUIT
CONNECTOR
Carrier- - approved accessory
C10017
R
or as a
2 stage