Carrier INDUCED COMBUSTION 58YAV Service And Maintenance Instructions
Carrier INDUCED COMBUSTION 58YAV Service And Maintenance Instructions

Carrier INDUCED COMBUSTION 58YAV Service And Maintenance Instructions

Induced-combustion furnaces for sizes 070-155, series 110 and 120

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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.
SAFETY CONSIDERATIONS .....................................................1
INTRODUCTION ..........................................................................1
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
REGISTERED QUALITY SYSTEM
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.
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
Tab 6a 8a
EFFICIENCY
RATING
CERTIFIED
CERTIFIED
®
Printed in U.S.A.
Induced-Combustion Furnaces
Fig. 1-Model 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
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.
.
These procedures are written for size 66,000 through 154,000 Btuh
input units of the 58YAV Gas-Fired Induced Combustion Furnace.
Form 58YAV-3SM
58YAV

INTRODUCTION

Pg 1
10-00
Replaces: 58YAV-2SM
A94085

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Summary of Contents for Carrier INDUCED COMBUSTION 58YAV

  • Page 1: Table Of Contents

    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. Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
  • Page 2: Electrostatic Discharge (Esd) Precautions Procedure

    These precautions will help to avoid exposing the control to electrostatic discharge by putting the furnace, the control, and the person at the same electrostatic potential. 1. Disconnect all power to the furnace. DO NOT TOUCH THE CONTROL OR ANY WIRE CONNECTED TO THE CON- TROL PRIOR TO DISCHARGING YOUR BODY’S ELEC-...
  • Page 3: Blower Motor And Wheel

    Use a piece of tape to hold switch closed. Check for proper rotation and speed changes between heating and cooling by jumpering R to W and then R to Y on furnace control thermostat terminals. Blower access door switch opens 115-v power to control center.
  • Page 4: Cleaning Heat Exchanger

    14. If furnace is operating properly, REMOVE TAPE TO RE- LEASE BLOWER ACCESS DOOR SWITCH, replace blower access door. Step 3—Cleaning Heat Exchanger The following steps should be performed by a qualified service technician: NOTE: If the heat exchangers get a heavy accumulation of soot and carbon, they should be replaced rather than trying to clean them thoroughly due to their intricate design.
  • Page 5: Electrical Controls And Wiring

    The control in this furnace is equipped with an LED status light to aid in installation, servicing, and troubleshooting. It can be viewed...
  • Page 6 JUNCTION optimum speed selection. UNMARKED TERMINAL 4. Use only copper wire between the disconnect switch and the furnace junction box (JB). 5. This wire must be connected to furnace sheetmetal for control to detect flame. PCB TERMINAL 6. Replace only with a 3 amp fuse.
  • Page 7 Main blower operates at cooling speed for 10 sec, then turns off. f. Inducer motor stops. Items a through e above will assist in furnace troubleshooting since all components are functionally operated except the gas valve. This procedure is also referred to as Component Test.
  • Page 8: Component Test

    - Gas valve defective or gas valve turned off. - Defective Hot Surface Ignitor - Low inlet gas pressure. - Green wire MUST be connected to furnace sheet metal. - Inadequate flame carryover or rough ignition. - Flame sensor must be ungrounded.
  • Page 9: Wiring Diagrams

    BLOWER ACCESS DOOR SWITCH, replace blower access door, and replace control access door. WIRING DIAGRAMS Refer to Fig. 5, 6, and 7 for the 58YAV furnace wiring diagrams. TROUBLESHOOTING Refer to service label. (See Fig. 8.) The Troubleshooting Guide can be a useful tool in isolating furnace operation problems.
  • Page 10: Troubleshooting Guide

    Is circuit breaker closed? Close circuit breaker and go back to start. Check for continuity in wire from circuit breaker to furnace. Check room thermostat or interconnecting cable. Is 24 vac present at W, Y, or G terminals on the control?
  • Page 12 Copyright 2000 CARRIER Corp. • 7310 W. Morris St. • Indianapolis, IN 46231 58yav3sm 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.

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