beautypg.com

Caution – Bryant 548J*14D User Manual

Page 16

background image

16

Unit without Thru--Base Connection Kit —

Pass the thermostat control wires through the bushing on

the unit end panel. Route the wire through the snap--in

wire tie and up to the web bushing near the control box.

Route the wire through the bushing and into the bottom

left side of the control box after removing one of the two

knockouts in the corner of the box. Using a connector at

the control box to protect the wire as it passes into the

control box. Pull the wires over to the terminal strip at the

upper left corner of the Central Terminal Board (CTB).

Use the connector at the control box and the wire tie to

ensure that the thermostat wire is tight and will not be

damaged by contact with the condenser coil. See Fig. 28.
NOTE:

If thru--the--bottom connections accessory is

used, refer to the accessory installation instructions for

information on routing power and control wiring.
Heat Anticipator Settings —

Set heat anticipator settings at 0.14 amp for the first stage

and 0.14 amp for second--stage heating, when available.

C10018

Fig. 28 -- Thermostat Wire Routing

Electric Heaters

548J*14D units may be equipped with field--installed

accessory electric heaters. The heaters are modular in

design, with heater frames holding open coil resistance

wires strung through ceramic insulators, line--break limit

switches and a control contactor. One or two heater

modules may be used in a unit.
Heater modules are installed in the compartment below

the indoor (supply) fan outlet. Access is through the

indoor access panel. Heater modules slide into the

compartment on tracks along the bottom of the heater

opening. See Fig. 29.

UNIT DAMAGE HAZARD

Failure to follow this caution may result in equipment

damage.
Not all available heater modules and single point

boxes may be used in every unit. Use only those

heater modules that are UL listed for use in a specific

size unit. Refer to the label on the unit cabinet for the

list of approved heaters and single point boxes.

CAUTION

!

548J

*14D