Bryant GAS-FIRED INDUCED-COMBUSTION FURNACE 393AAV Uživatelský manuál stáhnout pdf

NOTE: Read the entire instruction manual before performing any

service or maintenance.

These procedures are for size 66,000 through 154,000 Btuh input

units.

Index Page

SAFETY CONSIDERATIONS.....................................................1

ELECTROSTATIC DISCHARGE (ESD) PRECAUTIONS

PROCEDURE...........................................................................2

CARE AND MAINTENANCE..................................................2-8

Air Filter Arrangement.............................................................2

Blower Motor and Wheel......................................................2-3

Cleaning Heat Exchanger......................................................3-5

Unit Wiring Diagram................................................................7

Electrical Controls and Wiring .............................................5-8

Troubleshooting...................................................................8-11

Service Label ............................................................................9

Troubleshooting Guide......................................................10-11

SAFETY CONSIDERATIONS

Installing and servicing heating equipment can be hazardous due to

gas and electrical components. Only trained and qualified person-

nel should install, repair, or service heating equipment.

Untrained personnel can perform basic maintenance functions

such as cleaning and replacing air filters. All other operations must

be performed by trained service personnel. When working on

heating equipment, observe precautions in the literature, on tags,

and on labels attached to or shipped with the unit and other safety

precautions that may apply.

Follow all safety codes. In the United States, follow all safety

codes including the National Fuel Gas Code (NFGC) NFPA

54-1999/ANSI Z223.1-1999 and the Installation Standards, Warm

Air Heating and Air Conditioning Systems (NFPA 90B)

ANSI/NFPA 90B. In Canada, refer to the CAN/CGA-B149.1- and

.2-M95 National Standard of Canada, Natural Gas and Propane

Installation Codes (NSCNGPIC). Wear safety glasses and work

gloves. Have fire extinguisher available during start-up and

adjustment procedures and service calls.

Recognize safety information. This is the safety-alert symbol

When you see this symbol on the furnace and in instructions or

manuals, be alert to the potential for personal injury.

Understand the signal words DANGER, WARNING, CAUTION,

and NOTE. These words are used with the safety-alert symbol.

DANGER identifies the most serious hazards which will result in

severe personal injury or death. WARNING signifies a hazard

which could result in personal injury or death. CAUTION is used

to identify unsafe practices which would result in minor personal

injury or product and property damage. NOTE is used to highlight

suggestions which will result in enhanced installation, reliability,

or operation.

WARNING: The ability to properly perform mainte-

nance on this equipment requires certain expertise, me-

chanical skills, tools, and equipment. If you do not

possess these, do not attempt to perform any maintenance

on this equipment other than those procedures recom-

mended in the User’s Manual. FAILURE TO FOLLOW

THIS WARNING COULD RESULT IN POSSIBLE

DAMAGE TO THIS EQUIPMENT, SERIOUS PER-

SONAL INJURY, OR DEATH.

CAUTION: Label all wires prior to disconnection when

servicing controls. Wiring errors can cause improper and

dangerous operation.

ama

CANADIAN GAS ASSOCIATION

APPROVED

REGISTERED QUALITY SYSTEM

Fig. 1—Model 393AAV Upflow Furnace

A94085

service and

maintenance procedures

GAS-FIRED

INDUCED-COMBUSTION FURNACE

Cancels: SP04-52 SP04-58

8-99

393AAV

Series A

—1—

1 2 3 4 5 6 ... 11 12

Shrnutí obsahu

Strany 1 - Series A

NOTE: Read the entire instruction manual before performing anyservice or maintenance.These procedures are for size 66,000 through 154,000 Btuh inputun

Strany 2

Is circuit breaker closed?Close door switch and go to start.Is red LED status light on? Is door switch closed?Is red LED status light blinkingrapidly

Strany 3

11 NO PREVIOUS FAULT - Faultsare erased after 48 hrs orwhenever power (115v or 24v) isinterrupted. Run system througha heating or cooling cycle toche

Strany 4

A94328SERVICE TRAININGPackaged Service Training programs are an excellent way to increase your knowledge of the equipment discussed in this manual, in

Strany 5

ELECTROSTATIC DISCHARGE (ESD) PRECAUTIONSPROCEDURECAUTION: Electrostatic discharge can affect electroniccomponents. Take precautions during furnace in

Strany 6 - Fig. 6—Furnace Control

To ensure long life, economy, and high efficiency, clean accumu-lated dirt and grease from blower wheel and motor annually.The inducer and blower moto

Strany 7 - Fig. 7—Unit Wiring Diagram

If it becomes necessary to clean the heat exchanger because of dustor corrosion, proceed as follows:1. Turn gas and electrical power to furnace OFF.2.

Strany 8

WARNING: Never use a match or other open flame tocheck for gas leaks. Use a soap-and-water solution. Afailure to follow this warning could result in f

Strany 9 - COMPONENT TEST

Fig. 5—Heating and Cooling Application Wiring DiagramA98521115-V FIELD-SUPPLIEDDISCONNECT AUXILIARYJ-BOX 24-VTERMINALBLOCK THREE-WIREHEATIN

Strany 10 - TROUBLESHOOTING GUIDE

Fig. 7—Unit Wiring DiagramA98200ePCBBLOWER OFF DELAYSELECTION CHART90 SEC135 SEC180 SEC225 SECGVRHI/LORELAYSEC-1SEC-2PL1321654987LEDTEST/TWINBLOWEROF

Strany 11

g. If LED status indicates proper operation, RELEASEBLOWER ACCESS DOOR SWITCH, replace bloweraccess door, and replace control access door.E. Troublesh

Strany 12

Fig. 8—Service LabelA99233SERVICEGRYWComHUMTESTLEDLED CODESTATUS24V1112131421222324313334*986532147COMPONENT TESTNO PREVIOUS CODE - Stored status code

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