Carrier instruction manual ÐModel 58YAV Upflow Furnace, Table Of Contents, Introduction

58YAV Induced-Combustion Furnaces

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Service and Maintenance Instructions

For Sizes 070-155, Series 110 and 120

NOTE: Read the entire instruction manual before starting the
installation.
TABLE OF CONTENTS
SAFETY CONSIDERATIONS	1
INTRODUCTION	1
ELECTROSTATIC DISCHARGE (ESD) PRECAUTIONS PRO-
CEDURE	2
CARE AND MAINTENANCE	2
Cleaning and/or Replacing Air Filter	2
Blower Motor and Wheel	3
Cleaning Heat Exchanger	4
Electrical Controls and Wiring	5
Wiring Diagrams	9
Troubleshooting	9
SAFETY CONSIDERATIONS
EFFICIENCY
RATING
CERTIFIED

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REGISTERED QUALITY SYSTEM

CERTIFIED

Fig. 1ÐModel 58YAV Upflow Furnace

Understand these signal words; DANGER, WARNING, and CAUTION. 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 hazards 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

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, tags, and 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 No. 54-1999/ANSI Z223.1-1999. In Canada, refer to the current edition of the National Standard of Canada CAN/CGA-B149.1- and .2-M95 Natural Gas and Propane Gas 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.

The ability to properly perform maintenance on this equip- ment requires certain expertise, mechanical skills, tools, and equipment. If you do not possess these, do not attempt to perform any maintenance on this equipment other than those procedures recommended in the User's Manual. A FAILURE TO FOLLOW THIS WARNING COULD RESULT IN POSSIBLE DAMAGE TO THIS EQUIPMENT, SERIOUS PERSONAL INJURY, OR DEATH.

Label all wires prior to disconnection when servicing con- trols. Wiring errors can cause improper and dangerous operation.

INTRODUCTION

These procedures are written for size 66,000 through 154,000 Btuh input units of the 58YAV Gas-Fired Induced Combustion Furnace.

Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.

Book	1	4	PC 101	Catalog No. 535-771	Printed in U.S.A.	Form 58YAV±3SM	Pg 1	10-00	Replaces: 58YAV±2SM
Tab	6a	8a