Bryant Comprehensive Furnace Wiring Diagram and Thermostat Instructions

Page 7

FIELD 24-V WIRING

FIELD 115-, 208/230-, 460-V WIRING

FACTORY 24-V WIRING

FACTORY 115-V WIRING

 

 

 

NOTE 2

 

 

 

THERMOSTAT

 

 

 

FIVE

 

W C R

G

Y

FIELD-SUPPLIED

 

 

 

TERMINALS

 

 

 

 

 

 

 

 

WIRE

 

 

 

 

 

DISCONNECT

 

 

THREE-WIRE

 

 

 

 

 

208/230- OR

 

 

HEATING-

 

 

 

 

 

 

 

ONLY

 

 

 

 

 

460-V

 

 

 

 

 

 

 

 

THREE

BLK

BLK

 

W

 

 

 

 

PHASE

 

 

 

 

 

 

 

 

 

 

 

 

 

WHT

WHT

 

R

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

208/230-V

 

GND

GND

 

 

 

 

 

SINGLE

 

115-V

AUXILIARY

G

 

 

 

 

PHASE

 

 

 

 

 

 

 

FIELD-SUPPLIED

J-BOX

C

NOTE 1

 

 

 

GND

DISCONNECT

CONTROL

Y

 

 

CONDENSING

 

 

BOX

 

 

 

UNIT

 

 

 

 

 

 

 

 

 

 

 

 

24-V

 

 

 

TWO

 

 

 

TERMINAL

 

 

 

WIRE

 

 

 

 

BLOCK

NOTES: 1.

Connect Y-terminal as shown for proper operation.

 

 

FURNACE

 

 

 

2.￿ Some thermostats require a "C" terminal connection as shown.

 

 

 

 

 

3.If any of the original wire, as supplied, must be replaced, use same type or equivalent wire.

A98209

Fig. 10ÐHeating and Cooling Application Wiring Diagram

TEST/TWIN

COM W Y R G 24V

HUM

24-V THERMOSTAT TERMINALS

HUMIDIFIER TERMINAL (24-VAC 0.5 AMP MAX)

LED OPERATION & DIAGNOSTIC LIGHT

 

HARNESS CONNECTOR

SEC-1

24-V TRANSFORMER SEC-2

 

3-AMP FUSE

SPARE-1

COOL

BLOWER SPEED

HEAT

 

SELECTION TERMINALS

 

SPARE-2

 

EAC-1

 

EAC-ELECTRONIC AIR CLEANER

 

TERMINALS (115-VAC 1.5 AMP MAX)

115-VAC (L1)

EAC-2

POWER SUPPLY

115-VAC (L2) NEUTRAL

 

 

CONNECTION

HOT SURFACE

INDUCER MOTOR

IGNITOR CONNECTOR

CONNECTOR

A95086

Fig. 11ÐControl Board

Ð7Ð

Image 7
Contents Ð1Ð Electrostatic Discharge ESD PrecautionsAir Filter Arrangement Ð2ÐBlower Motor and Wheel Ð3ÐÐ4Ð Cleaning Heat Exchanger→ ÐModel 383KAV Upflow → ÐModel 373LAV DownflowÐ5Ð Electrical Controls and WiringÐ6Ð TroubleshootingÐ7Ð → ÐHeating and Cooling Application Wiring DiagramÐ8Ð → ÐWiring DiagramÐ9Ð ÐService LabelTroubleshooting Guide Ð11Ð Service Training
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