LEGEND AND NOTES FOR FIG. 45 Ð TYPICAL CONTROL WIRING SCHEMATIC

AND COMPONENT ARRANGEMENT

AHA Ð Adjustable Heat Anticipator

CÐ Contactor, Compressor

CAP Ð Capacitor

CC Ð Cooling Compensator

CLO Ð

Compressor Lockout

COMP Ð

Compressor Motor

DÐ Diode

EC

Ð Enthalpy Control

ECON

Ð Economizer

EPS

Ð Emergency Power Supply (9-V Battery)

EQUIP

Ð Equipment

ER

Ð Economizer Relay

FPT

Ð Freeze-Protection Thermostat

FU

Ð Fuse

GND

Ð Ground

HPS

Ð High-Pressure Switch

HS

Ð Hall Effect Sensor

IÐ Ignitor

IDM

Ð Induced Draft Motor

IFC

Ð

Indoor-Fan Contactor

IFM

Ð

Indoor-Fan Motor

IGC

Ð Integrated Gas Unit Controller

LPS

Ð Low-Pressure Switch

LS

Ð Limit Switch

MGV

Ð Main Gas Valve

MTR

Ð Motor

OAT

Ð Outdoor-Air Thermostat

OFM

Ð Outdoor-Fan Motor

PÐ Plug

PL

Ð

Plug Assembly

QT

Ð

Quadruple Terminal

RÐ Relay

RS

Ð Rollout Switch

SAT

Ð Supply-Air Thermostat

SEN

Ð Sensor

SW1

Ð Switch Fully Open

SW2

Ð Switch Fully Closed

SW3

Ð Switch Minimum Vent Position

SW4

Ð Switch Maximum Vent Position

TC

Ð Thermostat-Cooling

TH

Ð Thermostat-Heating

TRAN Ð Transformer

Field Splice

Marked Wire

Terminal (Marked)

Terminal (Unmarked)

Terminal Block

Splice

Factory Wiring

Field Control Wiring

Field Power Wiring

Accessory or Optional Wiring

To indicate common potential only, not to represent wiring.

NOTES:

1.Replace original wire with type 90 C wire or its equivalent.

2.Three-phase motors are protected under primary single-phasing conditions.

3.Use thermostats: HH07AT170,172

Subbases: HH93AZ176, 177, 178, and 179

4.Set heat anticipator at .14 amp for ®rst stage and .14 amp for second stage.

5.Use copper conductors only.

6.TRAN is wired for 230 V unit. If unit is to be run with 208 V power supply, disconnect BLK wire from 230 V tap and connect to 208 V tap (RED). Insulate end of 230 V tap.

Copyright 1998 Bryant Heating & Cooling Systems

CATALOG NO. 5358-100

Page 38
Image 38
Bryant 581B installation instructions Component Arrangement

581B specifications

The Bryant 581B is an innovative and highly efficient gas furnace that stands out in the HVAC market for its remarkable performance, reliability, and advanced features. Designed to provide optimal heating comfort, the Bryant 581B is perfect for homeowners seeking both quality and energy efficiency.

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The furnace is equipped with a multi-speed blower motor that enhances comfort by providing consistent airflow throughout the home. This technology adjusts to different heating demands, ensuring that every room reaches the desired temperature without the discomfort of hot or cold spots. The quiet operation of the blower motor also adds to the overall comfort, creating a peaceful home environment.

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In conclusion, the Bryant 581B gas furnace is a top-tier option that combines efficiency, durability, and modern technology. With its high AFUE rating, multi-speed blower, and advanced safety features, it promises to deliver unparalleled comfort and peace of mind for years to come. Whether for a new build or an upgrade, the Bryant 581B is an investment that pays off in both comfort and savings.