Bryant manual 502A048,060, 230-1-60 Units

Page 12

TYPICAL WIRING SCHEMATICS (cont)

 

 

LEGEND

 

 

 

 

 

AHA

— Adjustable Heat Anticipator

 

 

 

 

Marked Wire

C

— Contactor Compressor

 

 

 

 

CAP

—

Capacitor

 

 

 

 

Denotes connection point between

CB

—

Circuit Breaker

 

 

 

 

 

 

 

 

subbase and thermostat

CC

— Cooling Compensator

 

 

 

 

 

 

 

 

 

CDT

—

Compressor Discharge Thermostat

 

 

 

 

Terminal (Marked)

CH

— Crankcase Heater

 

 

 

 

 

 

 

 

 

COMP

— Compressor Motor

 

 

 

 

Terminal (Unmarked)

EQUIP

— Equipment

 

 

 

 

Terminal Block

GND

— Ground

 

 

 

 

HPS

— High-Pressure Switch

 

 

 

 

Field Splice

HR

— Heater Relay

 

 

 

 

IFC

— Indoor-Fan Contactor

 

 

 

 

Splice (Marked)

IFM

— Indoor-Fan Motor

 

 

 

 

IFR

—

Indoor-Fan Relay

 

 

 

 

Factory Splice

JB

— Junction Box

 

 

 

 

 

 

 

 

 

L

—

Light

 

 

 

 

Factory Wiring

LPS

— Low-Pressure Switch

 

 

 

 

 

 

 

 

 

NEC

—

National Electrical Code

 

 

 

 

 

Accessory or Optional Wiring

OFM

— Outdoor-Fan Motor

 

 

 

 

 

 

 

 

 

 

 

PL

— Plug Assembly

 

 

 

 

Field Control Wiring

QT

— Quadruple Terminal

 

 

 

 

Field Power Wiring

RC

— Run Capacitor

 

 

 

 

TB

—

Terminal Block

 

 

 

 

To indicate common potential

TC

—

Thermostat-Cooling

 

 

 

 

 

 

 

 

only, not to represent wiring

TH

— Thermostat-Heating

 

 

 

 

 

 

 

 

 

TRAN

— Transformer

 

 

 

 

 

NOTES:

2.If any original wires furnished must be replaced, it should be replaced with 90 C or its equivalent.

3.Numbers indicate the line location of used contacts. A bracket over 2 numbers signifies a single-pole double-throw contact. An underlined number signifies a normally closed contact. Plain (no line) number signifies a normally open contact.

4.Must use thermostat HH07AT170, 172 or 174 with subbase HN63AZ176, 177 or 179.

5.Neutral for 240/416 v supply (Canada only).

6.Separate field power supply required for electric heater accessory.

7.The 10-kW, 15-kW and 20-kW heater assemblies for 502A048,060 are wired for 3 phase. See heater label diagram for 1-phase rewiring procedure.

502A048,060, 230-1-60 Units

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Contents FEATURES/BENEFITS Model 502ATable of Contents Model Number NomenclatureARI* Capacity Ratings Operating Weight Distribution Center of Gravity DimensionsPhysical Data Unit 502AFIELD-INSTALLED Accessories AccessoryDimensions 88EN Electric Heat ModuleBase Unit Dimensions Dimensions ft-inUnit Component Locations Selection Procedure with example Performance DataPerformance Data Gross Cooling CapacitiesEvaporator FAN Performance Belt Drive Evaporator FAN Performance Condenser FAN PerformanceControls Electrical DataOperating Sequence CoolingTypical Wiring Schematics Electrical DataElectric Heater Static Pressure Drop in. wg Typical Wiring Schematics 502A024, 230-1-60 Units502A048,060, 230-1-60 Units 502A048,060, 575-3-60 Units BKR W/ATTypical Piping and Wiring OUTDOOR-AIR Temperature Operating Limits FApplication Data With Head Pressure Control Minimum MaximumGuide Specifications Indoor Packaged UnitPart 1 General Part 2 ProductsGuide Specifications Specifications Subject to Change Without Notice