York P3HU Keep The Furnace Area Clear, Start-Upand Shutdown General Instructions, Congratulations

Congratulations . . .

On your purchase of one of the most versatile furnaces available in the industry today. This compact, energy-efficient furnace has been precision designed, manufactured of high-quality materials and has passed many rigorous inspections and tests to ensure many years of satisfactory service.

This booklet is meant to increase your understanding of your unit, tell you how to operate it efficiently and how to obtain the greatest measure of comfort at the lowest operating expense. Please read this booklet thoroughly. We appreciate your interest in our product and your decision to purchase our furnace. Enjoy your comfort.

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. In order to get the safest and most efficient operation from your furnace, though, you should understand how your fur- nace does its job.

When you set your thermostat to provide more heat in your home, you are starting the heating cycle of the furnace. First, the inducer motor starts to purge the heat exchanger of any remaining gas- ses. Next, the hot surface ignitor glows and after a warm-up period the gas valve opens and ignition occurs. A short time later the blower starts and distributes the warm air throughout the home. When the temperature set on your thermostat is reached, the gas valve closes, the main burners are turned off, and the blower continues to run until the remain- ing warm air in the system is distributed. When the blower stops, the heating cy- cle has ended.

KEEP THE FURNACE AREA CLEAR

NEVER . . . use the area around your furnace as a storage area for items which could block the normal flow of air. This flow of air is required for ventilation of the various furnace components.

WARNING: Do not block or ob- struct air openings:

1.On the furnace.

2.Air openings communicating with the air in which the

furnace is installed.

3.The spacings around the furnace.

NEVER . . store flammable materials of any kind near your furnace. Gasoline, sol- vents, and other volatile liquids should be stored only in approved containers outside your home. These materials vaporize eas- ily and are extremely dangerous.

NEVER . . . store cleaning materials near your furnace. Materials such as bleaches, detergents, powdered cleans- ers, etc., can cause corrosion of the heat exchangers.

WARNING: Insulating materials may be flammable.

CAUTION: When a furnace is installed in an attic or other insu- lated space, or if insulation is added, examine the furnace area to ensure that the furnace is kept clear and free of insulation.

START-UP AND

SHUTDOWN -

GENERAL

INSTRUCTIONS

Read and follow these procedures CAREFULLY and COMPLETELY.

Before attempting to start your furnace, always do the following things FIRST:

∙Turn the thermostat OFF.

∙Open windows or make other provi- sions to ventilate the area around the furnace.

∙If the blower is running, wait until it shuts off automatically.

∙Turn off all electrical power to the furnace.

∙Make sure all metal surfaces of the furnace have cooled to room tem- perature before beginning.

FOR YOUR SAFETY, READ BEFORE OPERATING:

WARNING: If you do not follow these in- structions exactly, a fire or explosion may re- sult, causing property damage, personal in- jury or loss of life.

A.This appliance does not have a pilot. It is equipped with an ignition device which automatically lights the burn- ers. Do not try to light the burners by hand.

B.BEFORE OPERATING, smell all around the appliance area for gas. Be sure to smell next to the floor because some gas is heavier than air and will settle on the floor.

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 in your building.

∙Extinguish any open flame

∙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.

C.Use only your hand to turn the gas control knob. Never use tools. If the knob will not turn by hand, don’t try to repair it. Call a qualified service technician. Force or attempted re- pair may result in a fire or explosion.

WARNING: Do not use this fur- nace if any part has been under water. Immediately call a quali- fiedservicetechniciantoinspect the furnace and to replace any part of the control system and any gas control which has been underwater.

LIGHTING

INSTRUCTIONS

1.STOP! Read all preceding safety in- formation.

2.Set the thermostat to lowest setting.

3.Turn off all electrical power to the appliance.

4.This furnace is equipped with an ig- nition device which automatically lights the burners. Do not try to light the burners by hand.

5.Remove the control access panel.

6.Turn gas control switch to "OFF".

7.Wait five (5) minutes to clear out any gas. If you then smell gas, STOP! Follow step B in the preceding safety information. If you don’t smell gas, go to the next step.

8.Turn gas control switch to "ON". Do not force.

9.Replace control access panel.

10.Turn on all electrical power to the appliance.

11.Set thermostat to the desired setting.

12.The unit will go through a 17-second igniter warm-up period. Then if the unit does not light within 7 seconds, the unit will go through two additional cycles before locking out.

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