Subject to change without notice. Printed in U.S.A. 246738-YTG-B-0806Copyright © by York International Corp. 2006. All rights reserved. Supersedes: 246738/036-21581-002 Rev. A (1205)Unitary 5005 NormanProducts York OKGroup Drive 73069ACCESSORIESCONCENTRIC VENT TERMINATION -1CT0302 (2")1CT0303 (3")For use through rooftop, sidewall. Allows combustion air toenter and exhaust to exit through single common hole.PROPANE (LP) CONVERSION KIT -1NP0347 - All unitsThis accessory conversion kit may be used to convert naturalgas (N) units for propane (LP) operation. Conversions mustbe made by qualified distributor or dealer personnel.CONDENSATE NEUTRALIZER KIT - 1NK0301Neutralizer cartidge has a 1/2" plastic tube fittings for installa-tion in the drain line. Calcium carbonate refill media is alsoavailable from the Source 1 Parts (p/n 026-30228-000).SIDEWALL VENT TERMINATION - 1HT0901For use on sidewall, two-pipe installations only. Provides amore attractive termination for locations where the terminal isvisible on the side of the home.EXTERNAL SIDE RETURN FILTER RACK -1SF0101 - Fits all cabinet sizesAttaches to side of furnace cabinet in side return applications.Holds any 16x25x1 permanent or disposable filter.SIDE RETURN FILTER -1SR0302 - All Models1SR0200 - All ModelsBOTTOM RETURN FILTER -1BR0114 or 1BR0214 - For 14-1/2” cabinets1BR0117 or 1BR0217 - For 17-1/2” cabinets1BR0121 or 1BR0221 - For 21” cabinets1BR0124 or 1BR0224 - For 24-1/2” cabinetsINTERNAL FILTER WITH FIBER FILTER -1HF0801 - All ModelsHIGH ALTITUDE PRESSURE SWITCHES -For installation where the altitude is less than 8,000 feet it isnot required that the pressure switch be changed. For alti-tudes above 8,000 feet see kits below. Conversion must bemade by qualified distributor or dealer personnel.1PS0501 - 060 MBH1PS0502 - 080/1200 MBH1PS0503 - 080/1600, 100/1600, 120 MBH1PS0505 - 100/2000 MBH1PS0506 - 040 MBHROOM THERMOSTATS - A wide selection of compatiblethermosets are available to provide optimum performanceand features for any installation.1H/1C, manual change-over electronic non-programmablethermostat.1H/1C, auto/manual changeover, electronic programmable,deluxe 7-day, thermostat.1H/1C, auto/manual changeover, electronic programmable.* For the most current accessory information, refer to theprice book or consult factory.