York PC9 Instructions for Examining the Furnace Installation, Fire or Explosion Hazard

172988-YUM-A-0106

	VENT PIPE
BLOWER	CONDENSATE
ACCESS	HOSE
PANEL
CONTROL
BOARD
TRANSFORMER	RAIN
	GUTTER
PRESSURE	INDUCER
SWITCH	HOUSING
TUBING	INDUCER
PRESSURE	MOTOR
	CONDENSATE
SWITCHES
	DRAIN HOSE
GAS	CONDENSATE
VALVE
	TRAP
GAS	LIMIT
	SWITCH
REFERENCE
HOSE	BURNER BOX

FIGURE 1: Component Locations

7.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. These materials vaporize easily and are extremely dangerous.

INSTRUCTIONS FOR EXAMINING THE FURNACE INSTALLATION

It is the owner’s responsibility to ensure that an annual inspection of the entire heating portion of the unit is made by a qualified service agency.

1.Examine the heat exchanger, through a field installed access panel located on the supply air plenum. Visually examine the exte- rior sections of the vent/combustion air piping and the vent con- nectors to be sure that they are physically sound without holes or excessive corrosion.

2.Examine the vent pipe making sure it is firmly in place, that it slopes slightly upward and is physically sound without holes and all of the connections are secure.

3.Examine the return-air duct connections to make sure they are physically sound, sealed to the furnace casing, and the ducts ter- minate outside the space containing the furnace.

4.Examine the furnace casing making sure the physical support is sound without sagging, cracks or gaps. Examine the furnace base making sure it is physically sound without cracks, gaps or sagging and has a good seal.

5.Examine the furnace casing for obvious signs of deterioration.

6.Examine the burner flames to make sure they are in good adjust- ment. Refer to the pictorial sketch shown in Figure 2 as a compari- son to the actual flame.

7.Examine the furnace as outlined above in steps 1 - 6 before each heating season. Use Figure 3 for visual reference.

8.NEVER . . .Store cleaning materials near your furnace. Materials such as bleaches, detergents, powdered cleansers, etc., can cause corrosion of the heat exchangers.

9.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.

FIRE OR EXPLOSION HAZARD

This furnace is designed and approved for use with Nat- ural Gas and (LP) Propane Gas ONLY. DO NOT BURN ANY LIQUID FUEL OR SOLID FUEL IN THIS FURNACE.

Burning any unapproved fuel will result in damage to the furnace heat exchanger, which could result in Fire, Per- sonal Injury, and/or Property Damage.

MANIFOLD	MAIN BURNER	BURNER
		FLAME

INNER

FLAME

CONES

COMBUSTION AIR TRANSITION (not shown)

FIGURE 2: Burner Flame Drawing

3 EXAMINE RETURN AIR DUCT CONNECTION

BLOWER DOOR

2 REMOVE THIS PANEL TO EXAMINE VENT PIPE

4 EXAMINE			1	PLACE A FIELD	4	EXAMINE
FURNACE						FURNACE
				INSTALLED ACCESS
CASING						CASING
	6 REMOVE THIS			PANEL LOCATED IN
	PANEL TO			THE DOWNFLOW
5 EXAMINE	EXAMINE THE			PLENUM TO EXAMINE
	BURNER FLAMES	BURNER DOOR		THE HEAT EXCHANGER	5 EXAMINE CASING
CASING FOR
DETERIORATION					FOR DETERIORATION

FIGURE 3: Furnace Examination Checkpoints

2 Unitary Products Group