York TL8E Installation Manual

York TL8E Installation Manual Manual pdf 13 page image

5532522-UIM-B-0619Johnson Controls Ducted Systems 133. The duct shall be least the same cross-sectional area as the freearea of the air supply inlet opening to which it connects.4. The blocking effects of louvers, grilles and screens must be givenconsideration in calculating free area. If the free area of a specificlouver or grille is not known. Refer to Table 5 to estimate free area.Ventilated Combustion AirThe ventilated attic space or a crawl space from which the combustionair is taken must comply with the requirements specified in “AIRSOURCE FROM OUTDOORS” in this instruction or in Section 5.3, Airfor Combustion and Ventilation of the National Fuel Gas Code, ANSIZ223.1 (latest edition). This type installation requires two properly sizedpipes. One brings combustion air from a properly ventilated attic spaceor crawl space and a second pipe that extends from the furnace ventconnection (top right of unit) to the exterior of the building.Vent and Supply (Outside) Air Safety Check ProcedureFor Category I furnaces, vent installations shall be in accordance withParts 7 and 11 of the National Fuel Gas Code, ANSI Z223.1/NFPA 54,and or Section 7 and Appendix B of the CSA B149.1, Natural Gas andPropane Installation Codes, the local building codes, furnace and ventmanufacturer's instructions.Multi-story or common venting systems are permitted and must beinstalled in accordance with the National Fuel Gas Code, ANSI Z223.1/NFPA 54 and / or the CSA B149.1, Natural Gas and Propane Installa-tion Codes, local codes, and the manufacturer's instructions.Vent connectors serving Category I furnaces shall not be connectedinto any portion of mechanical draft systems operating under positivepressure.Horizontal portions of the venting system shall be supported to preventsagging using hangers or perforated straps and must slope upwardsnot less than 1/4” per foot (21 mm/m) from the furnace to the vent termi-nal.It is recommended that you follow the venting safety procedure below.This procedure is designed to detect an inadequate ventilation systemthat can cause the appliances in the area to operate improperly causingunsafe levels of Carbon Monoxide or an unsafe condition to occur.SECTION VII: START-UP ANDADJUSTMENTSThe following start-up checks MUST be performed by the furnaceinstaller on every new furnace installation.1. Gas piping leak check2. Ignition check3. Furnace input rate check4. Air temperature rise checkInstructions on how to perform each of these required installationchecks are listed in the sections below.When the gas supply is initially connected to the furnace, the gas pipingmay be full of air. In order to purge this air, it is recommended that theground union be loosened until the odor of gas is detected. When gas isdetected, immediately retighten the union and check for leaks. Allowfive minutes for any gas to dissipate before continuing with the start-upprocedure. Be sure proper ventilation is available to dilute and carryaway any vented gas.WARNINGCARBON MONOXIDE POISONING HAZARDFailure to follow the steps outlined below for each appliance connected to the venting system being placed into operation could result in carbon-monxide poisoning or death.The following steps shall be followed for each appliance connected to the venting system being placed into operation, while all other appliancesconnected to the venting system are not in operation:1. Inspect the venting system for proper size and horizontal pitch. Determine that there is no blockage, restriction, leakage, corrosion or other defi-ciencies, which could cause an unsafe condition2. Close all building doors and windows.3. Turn on clothes dryers and TURN ON any exhaust fans, such as range hoods and bathroom exhausts, so they shall operate at maximumspeed. Open the fireplace dampers. Do not operate a summer exhaust fan.4. Follow the lighting instructions. Place the appliance being inspected in operation. Adjust thermostat so the appliance shall operate continu-ously.5. Test each appliance (such as a water heater) equipped with a draft hood for spillage (down-draft or no draft) at the draft hood relief openingafter 5 minutes of main burner operation. Appliances that do not have draft hoods need to be checked at the vent pipe as close to the applianceas possible. Use a combustion analyzer to check the CO 2 and CO levels of each appliance. Use a draft gauge to check for a downdraft or inad-equate draft condition.6. After it has been determined that each appliance properly vents when tested as outlined above, return doors, windows, exhaust fans, fireplacedampers and any other gas burning appliance to their normal condition.7. If improper venting is observed during any of the above tests, a problem exists with either the venting system or the appliance does not haveenough combustion air (Supply Air from outside) to complete combustion. This condition must be corrected before the appliance can functionsafely.NOTE: An unsafe condition exists when the CO reading exceeds 40 ppm and the draft reading is not in excess of - 0.1” w.c. (-25 kPa) with allof the appliance(s) operating at the same time.8. Any corrections to the venting system and / or to the supply (outside) air system must be in accordance with the National Fuel Gas CodeZ223.1 or CAN/CGA B149.1 Natural Gas and Propane Installation Code (latest editions). If the vent system must be resized, follow the appro-priate tables in Appendix G of the above codes or for this appliance.!IMPORTANT: All electrical connections made in the field and in thefactory should be checked for proper tightness.