Carrier 50TC*D17 Series Installation Instructions Manual page 15

Rubber
Grommet
Wire
Ties
Corner
Post
Field Power
Connection
(Factory-Installed
Disconnect shown)
Wire
Ties
Thru the Base
Connection
Fig. 19 - - Field Control Wiring Raceway
Electric Heaters
50TC*D units may be equipped with field- - installed
accessory electric heaters. Each heater is a pre- - assembled
module, with heater frames holding open coil resistance
wires strung through ceramic insulators, line- - break limit
switches and two control contactors for two- - stage heating
control.
The heater module is installed in the compartment below
the indoor blower access panel. Access is through the
electric heat access panel. Heater modules slide into the
compartment on tracks along the bottom of the heater
opening. See Fig. 20, Fig. 21 and Fig. 22. Refer to the
Electric Heater Kit Installation Instructions for complete
details.
Not all available heater modules may be used in every
unit. Use only those heater modules that are Carrier
approved for use in a specific size unit and duct
arrangement (vertical or horizontal). Refer to the label on
the unit cabinet for the list of approved heaters.
Unit heaters are marked with Heater Model Numbers. But
heaters are ordered as and shipped in cartons marked with
a corresponding heater Sales Package part number. See
Table 3 for correlation between heater Model Number and
Sales Package part number.
Bare Heater Model Number
Heater Sales Package PNO
Includes:
Bare Heater
Carton and packing materials
Installation sheet
C09382
Table 3 – Heater Model Number
C R H E A
C R H E A
15
NOTE: The value in position 9 of the part number differs
between the sales package part number (value is 2) and a
bare heater model number (value is 0).
Control Box
Access Panel
Filter and
Indoor Coil
Access Panel
Indoor Blower
Access Panel
Electric Heat
Access Panel
Fig. 20 - - Typical Access Panel Location
Terminal Block Indoor Blower
(TB1) Access Panel
Main Control Filter
Box Area
Fig. 21 - - Typical Component Location
Electric Heater
Tracks
Electric Heater
Opening
Fig. 22 - - Electric Heater Compartment
(Cover Removed)
T E R 0
T E R 2
Compressor
(each side)
C09380
Heater
Module
C09381
C09142
7 9 A 0 0
7 9 A 0 0