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York International PM9*DH Service Manual

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158334-UUM-C-0606
USER’S INFORMATION,
MAINTENANCE AND
SERVICE MANUAL
MODELS: PM9*DH, FC9M*DH, FL9M*DH
(Modulating Downflow/Horizontal)
EFFICIENCY
RATING
CERTIFIED
ISO 9001
Certified Quality
Management System
The manufacturer recommends that the user read all sec-
tions of this manual and keep the manual for future refer-
ence.
SECTION I: USER’S INFORMATION
SECTION I: USER’S INFORMATIONSECTION I: USER’S INFORMATION
SECTION I: USER’S INFORMATION
SAFETY
SAFETYSAFETY
SAFETY
1. The furnace area must be kept clear and free of combustible mate-
rials, gasoline and other flammable vapors and liquids.
2. Insulating materials may be combustible. The furnace must be
kept free and clear of insulating materials. The furnace area must
be examined when installed in an attic or other insulated space or
when insulation is added to be sure that the insulation material has
been kept away from the furnace.
3. The furnace needs air for combustion in order to operate properly
and safely. Do not block or obstruct air openings on the furnace,
air openings to the area where the furnace is installed, or spaces
around the furnace.
4. Follow the instructions exactly as shown on the OPERATING
INSTRUCTION LABEL or the Start-up and Shutdown Instructions
on Page 3 of this manual when lighting the furnace or turning the
furnace off.
5. Should the gas supply fail to shut off or if overheating occurs, shut
off the gas valve to the furnace before shutting off the electrical
supply.
6. Do not use this furnace if any part has been under water. A flood-
damaged furnace is extremely dangerous. Attempts to use the fur-
nace can result in fire or explosion. A qualified service agency
should be contacted to inspect the furnace and replace all gas
controls, control system parts, electrical parts that have been wet
or the furnace if deemed necessary.
FIRE OR EXPLOSION HAZARD - Failure to follow
safety warnings exactly could result in serious injury,
death, or property damage.
— Do not store or use gasoline or other flammable
vapors and liquids in the vicinity of this or any
other appliance.
— WHAT TO DO IF YOU SMELL GAS:
• Do not try to light any appliance.
• Do not touch any electrical switch; do not use any
phone (including cell phone) in your building.
• Leave the building immediately.
• Immediately call your gas supplier from a neighbor’s
phone. Follow the gas supplier’s instructions.
• If you cannot reach your gas supplier, call the fire
department.
— Installation and service must be performed by a
qualified installer, service agency or the gas sup-
plier.
TABLE OF CONTENTS
CONTACT INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
USER’S INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
SAFETY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
INSTRUCTIONS FOR EXAMINING THE
FURNACE INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
HOW YOUR GAS FURNACE WORKS . . . . . . . . . . . . . . . . . . . . . . 3
START-UP AND SHUTDOWN INSTRUCTIONS . . . . . . . . . . . . . . . 3
Read the Instructions Below Before Trying
to Start the Furnace . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Operating Instructions: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
To Turn Off the Appliance: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
FURNACE USER MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Blower Care . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Air Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Removing Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Motor Lubrication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
SERVICE AND MAINTENANCE MANUAL . . . . . . . . . . . . . . . . . . . . . 5
SAFETY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
FURNACE MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
FURNACE CLEANING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Burner Removal/Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Cleaning the Heat Exchanger . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Cleaning the Secondary Heat Exchanger . . . . . . . . . . . . . . . . . . .6
Cleaning the Vent / Air Intake System . . . . . . . . . . . . . . . . . . . . . .6
NORMAL OPERATION SEQUENCE . . . . . . . . . . . . . . . . . . . . . . . .6
ADJUSTMENT OF FAN CONTROL SETTINGS . . . . . . . . . . . . . . . .6
Hot Surface Ignition System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
FURNACE CONTROL DIAGNOSTICS . . . . . . . . . . . . . . . . . . . . . . .7
DIAGNOSTIC FAULT CODE STORAGE AND RETRIEVAL . . . . . .7
REPLACEMENT PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
REPLACEMENT PART CONTACT INFORMATION . . . . . . . . . . . . .10
WIRING DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
LIMITED WARRANTY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
CONTACT INFORMATION
CONTACT INFORMATIONCONTACT INFORMATION
CONTACT INFORMATION
• Go to website at www.york.com click on “contact”, then click on “contact form” and follow the instructions.
• Contact us by mail:
York International
Consumer Relations
5005 York Drive
Norman, OK 73069
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Summary of Contents

Page 1 - SERVICE MANUAL

158334-UUM-C-0606USER’S INFORMATION,MAINTENANCE AND SERVICE MANUALMODELS: PM9*DH, FC9M*DH, FL9M*DH(Modulating Downflow/Horizontal)EFFICIENCYRATINGCERT

Page 2

158334-UUM-C-060610 Unitary Products GroupFIELD INSTALLED ACCESSORIES - NON-ELECTRICAL MODEL NO. DESCRIPTION USED WITH1NP0680 PROPANE (LP) CONVERSION

Page 3

158334-UUM-C-0606Unitary Products Group 11SECTION IV: WIRING DIAGRAMSECTION IV: WIRING DIAGRAMSECTION IV: WIRING DIAGRAMSECTION IV: WIRING DIAGRAM FIG

Page 4

Subject to change without notice. Printed in U.S.A. 158334-UUM-C-0606Copyright © by Unitary Products Group 2006. All rights reserved. Supersedes: 158

Page 5

158334-UUM-C-06062 Unitary Products Group7. NEVER . . .Store flammable materials of any kind near your fur-nace. Gasoline, solvents, and

Page 6

158334-UUM-C-0606Unitary Products Group 3HOW YOUR GAS FURNACE WORKSHOW YOUR GAS FURNACE WORKSHOW YOUR GAS FURNACE WORKSHOW YOUR GAS FURNACE WORKSYour

Page 7

158334-UUM-C-06064 Unitary Products GroupFURNACE USER MAINTENANCEFURNACE USER MAINTENANCEFURNACE USER MAINTENANCEFURNACE USER MAINTENANCEBlower CareEv

Page 8 - 8 Unitary Products Group

158334-UUM-C-0606Unitary Products Group 5If, during the inspection of your furnace, you find any of the followingconditions:• Excessive amount

Page 9 - Unitary Products Group 9

158334-UUM-C-06066 Unitary Products GroupCleaning the Secondary Heat Exchanger1. Follow steps 1 - 7 under cleaning the Heat Exchanger.2. Remove the ve

Page 10 - 10 Unitary Products Group

158334-UUM-C-0606Unitary Products Group 7TROUBLESHOOTINGTROUBLESHOOTINGTROUBLESHOOTINGTROUBLESHOOTINGThe following visual checks should be made before

Page 11 - SECTION IV: WIRING DIAGRAM

158334-UUM-C-06068 Unitary Products GroupSECTION III: REPLACEMENT PARTS LISTSECTION III: REPLACEMENT PARTS LISTSECTION III: REPLACEMENT PARTS LISTSECT

Page 12 - Limited Warranty

158334-UUM-C-0606Unitary Products Group 9ITEM DESCRIPTIONMOTOR1 MOTOR, DIRECT DRIVE BLOWER2 MOTOR, INDUCER ASSYELECTRICAL3* CAPACITOR4 SWITCH, LIMIT (

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