York TL8E Installation Manual

York TL8E Installation Manual Manual pdf 11 page image

5532522-UIM-B-0619Johnson Controls Ducted Systems 11TWINNINGThese furnaces are not to be twinned. If more than one furnace isneeded in an application, each furnace must have its own completeduct system and its own wall thermostat.SECTION VI: VENT SYSTEMVENT CONNECTIONSAll models are provided with a flue transition that is sized for 4” diame-ter vent connections. If a larger size vent connector is required, thatconnection must be installed external to the furnace. Figure 14 showsthe furnace as it is shipped from the factory.CATEGORY 1 - 450 F. MAX. VENT TEMP.The venting system must be installed in accordance with Section 5.3,Air for Combustion and Ventilation, of the National Fuel Gas CodeZ223.1/NFPA 54 (latest edition), or Sections 7.2, 7.3 or 7.4 of CSAB149.1, National Gas and Propane Codes (latest edition) or applicableprovisions of the local building code and these instructions.The furnace shall be connected to any type of B, BW or L vent connec-tor, and shall be connected to a factory-built or masonry chimney. Thefurnace shall not be connected to a chimney flue serving a sepa-rate appliance designed to burn solid fuel.It is recommended that the appliance is installed in a location where thespace temperature is 32°F (0°C) or higher. If the appliance is installedin a location where the ambient temperature is below 32°F (0°C), thecombustion byproducts could condense causing damage to the appli-ance heat exchanger.This appliance may be common vented with another gas appliance forresidential installations as allowed by the codes and standards listed inthese instructions.VENTINGCategory I venting consists of vertically venting one or more appliancesin B-vent or masonry chimney (as allowed), using single wall metal pipeor B-vent connectors. Type B-vent system extends in a general verticaldirection and does not contain offsets exceeding 45º. A vent systemhaving not more than one 60º offset is permitted.VENTING INTO AN EXISTING CHIMNEYFor Category I installations, the furnace shall be connected to a factorybuilt chimney or vent complying with a recognized standard, or amasonry or concrete chimney lined with a material acceptable to theauthority having jurisdiction. Venting into an unlined masonry chimneyor concrete chimney is prohibited.Where use of an existing chimney is unavoidable, the following rulesmust be followed:1. The masonry chimney must be built and installed in accordancewith nationally recognized building codes or standards and must belined with approved fire clay tile flue liners or other approved linermaterial that will resist corrosion, softening, or cracking from fluegases. THIS FURNACE IS NOT TO BE VENTED INTO ANUNLINED MASONRY CHIMNEY.2. This furnace must be vented into a fire clay tile lined masonry chim-ney only if a source of dilution air is provided, such as by commonventing with a draft hood equipped water heater. If no source ofdilution air is available, Type B vent must be used, or masonrychimney vent kit S1-1CK0604 must be used. Refer to the instruc-tions with the kit to properly apply these masonry chimney kits.3. The chimney must extend at least 3 ft (91 cm) above the highestpoint where it passes through a roof of a building and at least twofeet higher than any portion of the building with a horizontal dis-tance of ten feet.4. The chimney must extend at least 5 ft (1.5 m) above the highestequipment draft hood or flue collar.FAN-ASSISTED COMBUSTION SYSTEMThis appliance is equipped with an integral mechanical means to eitherdraw products of combustion through the heat exchanger.Ambient Combustion Air SupplyThis type installation will draw the air required for combustion fromwithin the space surrounding the appliance and from areas or roomsadjacent to the space surrounding the appliance. This may be fromwithin the space in a non-confined location or it may be brought into thefurnace area from outdoors through permanent openings or ducts. Asingle, properly sized pipe from the furnace vent connector to the out-doors must be provided. Combustion air is brought into the furnacethrough the unit top panel opening.An unconfined space is not less than 50 cu.ft (1.42 m 3) per 1,000 Btu/hr (0.2928 kW) input rating for all of the appliances installed in thatarea.Rooms communicating directly with the space containing the appli-ances are considered part of the unconfined space, if doors are fur-nished with openings or louvers.A confined space is an area with less than 50 cu.ft (1.42 m3 ) per 1,000Btu/hr (0.2928 kW) input rating for all of the appliances installed in thatarea. The following must be considered to obtain proper air for combus-tion and ventilation in confined spaces.FIGURE 14: Combustion Air Inducer4" VENTCONNECTIONVENT PRESURESENSOR CONNECTIONA1094-001FIGURE 15: Combustion Airflow Path Through The Furnace Casing tothe Burner CompartmentWARNINGThis type of installation requires that the supply air to the appliance(s)be of a sufficient amount to support all of the appliance(s) in the area.Operation of a mechanical exhaust, such as an exhaust fan, kitchenventilation system, clothes dryer or fireplace may create conditionsrequiring special attention to avoid unsatisfactory operation of gasappliances. A venting problem or a lack of supply air will result in ahazardous condition, which can cause the appliance to soot and gen-erate dangerous levels of CARBON MONOXIDE, which can lead toserious injury, property damage and / or death.COMBUSTION AIRA1102-001!