York GY9S*DH, GM9S*DH, GF9S*DH Section Viii Condensate Piping, UIM-B-0607, Condensate Drain

268890-UIM-B-0607

12” MINIMUM BETWEEN BOTTOM OF BELOW AND ANY MATERIAL

12”

MIN.

FIGURE 28: Attic Combustion Air Termination

Specially Engineered Installations

The above requirements shall be permitted to be waived where special engineering, approved by the authority having jurisdiction, provides an adequate supply of air for combustion, ventilation and dilution of flue gases.

Be sure to instruct the owner not to block this intake pipe.

SECTION VIII: CONDENSATE PIPING

CONDENSATE DRAIN TUBE 5/8” (1.59 cm)

FIGURE 29: Condensate Drain Internal Hose Routing

CONDENSATE DRAIN

The condensate drain connection is provided in the furnace for field installation. It consists of the hoses shown below, a NPT male connec- tion, and a 1/2” (1.27 cm) female x 3/4” (1.9 cm) PVC slip coupling. Some of the drain hoses will be needed to convert the condensate drain system when the furnace is installed in a horizontal left or right configu- ration. Refer to Figures 30 - 36 for the condensate hose sizes for con- densate drain connections.

IMPORTANT: The condensate drain from the furnace may be con- nected in common with the drain from an air conditioning coil if allowed by local code.

IMPORTANT: Condensate must be disposed of properly. Follow local plumbing or wastewater codes. The drain line must maintain a 1/4" per foot (0.635 cm per meter) slope to the drain.

CONDENSATE DRAIN TRAP AND DRAIN FREEZE PROTECTION

Special precautions MUST be made if installing furnace in an area, which may drop below freezing. This can cause improper operation or damage to the equipment. If the furnace is installed in an area that has the potential of freezing, the drain line and the drain trap must be pro- tected. Use a 3 to 6 watt per foot at 115 vac, 40º F (4.4° C) self-regulat- ing, shielded and waterproof heat tape. Wrap the drain trap and the drain line with the heat tape and secure with ties. Follow the heat tape manufacturer's recommendations.

CONDENSATE DRAIN HOSE PART NUMBERS

TABLE 15: Condensate Drain Hose

Part	Hose
	Numb		Description
Number
	er
028-15156-000	#1		Drain tube - Condensate pan (Down flow)
028-15176-000	#2		Drain tube - Inducer (Horizontal RT.)
			-Vent system Down flow)
028-15168-000	#3		Drain tube - Inducer (Down flow)
028-15176-000	#4		Drain tube - Rain gutter (Down flow & Horizontal RT.)
028-15176-000	#5		Drain tube - After Tee (Down flow)
028-15196-000	#6		Drain tube – Upper rain gutter (Horizontal LT.)
028-15169-001	#7		Drain tube - After Tee (Horizontal RT.)
028-13309-004	#8		Drain tube - P-trap (All models)
028-15158-000	#9		Drain tube - Vent system (Horizontal LT.)
		-	Before Tee (Horizontal RT.)
028-15197-000	#10		Drain tube – Condensate pan (Horizontal –
			drain closer to the front of the furnace, both LT & RT)

Hoses #2, #4, #5, along with a barbed nipple, and a barbed tee are part of condensate hose assembly 028-15176-000.

DOWNFLOW/HORIZONTAL CONDENSATE INTERNAL DRAIN CONFIGURATIONS

Downflow - Refer to Figure 30

Furnace is shipped with one end of condensate hose #2 left open in the furnace. If the provided Wye's drain is aligned with the opening in the top of the furnace, hose #2 can be used. If it is desired that the Wye and street elbow assembly point away from the opening in the casing top, then the #2 hose will have to be replaced with provided #9 hose. The dogleg end of hose #9 hose should be installed on the drain of the Wye.

22 Unitary Products Group