York PC9 User's Information, Maintenance And Service Manual
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York PC9 User's Information, Maintenance And Service Manual

Modulating downflow/horizontal with ecm motor
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USER'S INFORMATION,

MAINTENANCE AND
SERVICE MANUAL
MODELS: PC9
(Modulating Downflow/Horizontal With ECM Motor)
CONTACT INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
USER'S INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
SAFETY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
HOW YOUR GAS FURNACE WORKS . . . . . . . . . . . . . . . . . . . . . . 3
START-UP AND SHUTDOWN INSTRUCTIONS . . . . . . . . . . . . . . . 3
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

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:
The manufacturer recommends that the user read all sec-
tions of this manual and keep the manual for future refer-
ence.
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

FURNACE MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
FURNACE CLEANING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Burner Removal/Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Cleaning the Heat Exchanger . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Cleaning the Secondary Heat Exchanger . . . . . . . . . . . . . . . . . . .5
Cleaning the Vent / Air Intake System . . . . . . . . . . . . . . . . . . . . . .5
NORMAL OPERATION SEQUENCE . . . . . . . . . . . . . . . . . . . . . . . .5
ADJUSTMENT OF FAN CONTROL SETTINGS . . . . . . . . . . . . . . . .6
Delay Taps Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Humidistat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Hot Surface Ignition System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
FURNACE CONTROL DIAGNOSTICS . . . . . . . . . . . . . . . . . . . . . . .7
REPLACEMENT PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
REPLACEMENT PART CONTACT INFORMATION . . . . . . . . . . . . .10
WIRING DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
LIMITED WARRANTY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
York International
Consumer Relations
5005 York Drive
Norman, OK 73069
SECTION I: USER'S INFORMATION

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.
EFFICIENCY
RATING
CERTIFIED
ISO 9001
Certified Quality
Management System
172988-YUM-A-0106

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Summary of Contents for York PC9

  • Page 1: Table Of Contents

    SAFETY ..........5 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:...

  • Page 2: Instructions For Examining The Furnace

    172988-YUM-A-0106 BLOWER ACCESS PANEL CONTROL BOARD TRANSFORMER PRESSURE SWITCH TUBING PRESSURE SWITCHES VALVE REFERENCE HOSE FIGURE 1: Component Locations NEVER . . .Store flammable materials of any kind near your fur- nace. Gasoline, solvents, and other volatile liquids should be stored only in approved containers outside your home.

  • Page 3: How Your Gas Furnace Works

    HOW YOUR GAS FURNACE WORKS Your furnace is a very easy appliance to take for granted. Season after season, it sits there in your home, keeping you warm and comfortable. For this reason, you may never have given much thought to the way your furnace operates.

  • Page 4: Furnace User Maintenance

    172988-YUM-A-0106 FURNACE USER MAINTENANCE Before proceeding, be sure the area is well ventilated. Turn the thermostat OFF. If the blower is running, wait until it stops automatically. Turn OFF the gas and electrical power supplies to the furnace. Check all metal parts and surfaces to be sure they have cooled to room temperature before you begin.

  • Page 5: Motor Lubrication

    If, during the inspection of your furnace, you find any of the following conditions: • Excessive amounts of dust and lint on components. • Damaged or deteriorated components or surfaces. • Leaks or blockage in the vent pipe passages. • Water on any surface inside or outside of the furnace. Do not operate the furnace, call a certified dealer / servicing contractor to check and / or clean your furnace, or for more information if you have questions about the operation of your furnace.

  • Page 6: Adjustment Of Fan Control Settings

    172988-YUM-A-0106 The inducer is energized and ramps up its speed until airflow is proven by the pressure switch and by the pressure sensor on the control board. The hot surface ignitor is energized. After a 17-20 second igniter heatup, the gas valve opens and the burners light.

  • Page 7: Hot Surface Ignition System

    Hot Surface Ignition System HOT SURFACE IGNITION SYSTEM Do not attempt to light this furnace by hand (with a match or any other means). There may be a potential shock hazard from the components of the hot surface ignition system. The furnace can only be lit automatically by its hot surface ignition system.

  • Page 8: Replacement Parts List

    172988-YUM-A-0106 SECTION III: REPLACEMENT PARTS LIST 55,56 9,37 Unitary Products Group...
  • Page 9 ITEM DESCRIPTION MOTOR MOTOR, DIRECT DRIVE BLOWER MOTOR, INDUCER ASSY ELECTRICAL CAPACITOR SWITCH, LIMIT (INDUCER) LIMIT, TEMPERATURE (Primary) LIMIT, FLAME ROLL-OUT CONTROL, FURNACE MODULE PLUG, JUMPER SENSOR, THERMISTOR IGNITER SENSOR, FLAME SWITCH, PRESSURE SWITCH, DOOR TRANSFORMER VALVE, GAS AIR MOVING HOUSING, BLOWER WHEEL, BLOWER BRACKET, BLOWER (2 Req’d)

  • Page 10: Replacement Part Contact Information

    CONCENTRIC INTAKE/VENT 3” CONDENSATE NEUTRALIZER KIT SIDEWALL VENT TERMINATION KIT COMBUSTIBLE FLOOR BASE COIL TRANSITION KIT York International Consumer Relations 5005 York Drive Norman, OK 73069 USED WITH ALL MODELS 60, 80, 100 INPUT MBH 100, 120 MBH ALL MODELS ALL MODELS 17-1/2”...

  • Page 11: Wiring Diagram

    172988-YUM-A-0106 SECTION IV: WIRING DIAGRAM FIGURE 9: Wiring Diagram Unitary Products Group...

  • Page 12: Limited Warranty

    Subject to change without notice. Printed in U.S.A. Copyright © by Unitary Products Group 2006. All rights reserved. Unitary Products Group HEAT EXCHANGER Residential Applications Original Owner Subsequent Owner Lifetime EXCLUSIONS 5005 York Drive PARTS Non-Residential Applications 172988-YUM-A-0106 Supersedes: Nothing Norman 73069...

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