I’m making an assumtion that GM has something do to with the year. 4th Digit I read the wrong side of my chart for the letter G :oops: 1977 or 1998 (dag nabbit, read it wrong again).
Unitary Products Group, Johnson Controls, 5005 York Dr., Norman, OK 73069; www.upgnet.com eProduct 185 I want to hear from you. 5 Air Conditioner, Furnace user manuals, operating guides & specifications My references didn’t include this mfg, but it will now.

I don’t run into these very often and need help decoding the age from the S/N. York and Unitary Products Group (UPG, which is a division of York) actually had different serial number coding. Season after season, it sits there in your home, keeping you warm and comfortable. 2nd Digit And those lables are horrible to read! (To determine month: A = Jan; B = Feb; C = Mar; D = Apr; E = May; F = Jun; G = Jul; H = Aug; I was not used; J was not used; K = Sep; L = Oct; M = Nov; and N = Dec.). 1 Download manuals & user guides for 89 devices offered by Unitary products group in Furnace Devices category. And that makes it interesting how HVAC contactors in the past felt is was perfectly fine to notch any joist or girder as they saw fit to get that register installed without tearing the asbestos wrap! Find out how we leverage our unparalleled residential dealer network and world-class commercial support services to lead the industry.

The recalled furnaces were sold from 1995 to November 2000. A/C Unit: Model H2DB024S06B Serial: (S) EGGM255175 WOD7676459. 1998 would be most correct as far as everything else with the system that I saw today. Just don’t know the sequence. Could not see due to interference. 9 Unitary Products Ser. F = 1976, 1997 G = 1977, 1998. 2010 W0A9123456 – This sample serial number indicates that the unit was manufactured in January, 2009.

0 8 2012 This guide is intended to assist Commercial/Residential Building Inspectors, HVAC professionals, Facilities Managers, HOA’s, etc.., in determining the date of manufacture and/or age of HVAC equipment to determine the expected useful life (EUL). Unitary Products Group 3 FURNACE SPECIFICATIONS DGAM — Automatic ignition — with Built--in Coil Cabinet — 4 Ton -- A/C Ready Model No. 2.

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1 YORK** (1971 to October 2004) York International Corp., Unitary Products Group: ROOFTOP UNITS York International Corp., Unitary Products Group: ZONE CONTROL York International Corp., Unitary Products Group: SPLIT-SYSTEM AIR CONDITIONER American Standard Heating and Air Conditioning, Unitary Products Group: LIGHT COMMERCIAL A/C UNIT Actually, that looks like it might have been made in 2007 at the York-UPG Witchita plant.

0 Thanks!! B = 1972, 1993 C = 1973, 1994. Source 1 is an exclusive supplier of service parts and accessories for all Johnson Controls’ residential and light commercial HVAC equipment, as well as universal HVAC replacement parts, supplies, and accessories. 1 The home was built in 1913. It’s a two pipe heat exchanger 90% eff. YORK** (October 2004 to Present) York International Corp., Unitary Products Group: ROOFTOP UNITS York International Corp., Unitary Products Group: ZONE CONTROL York International Corp., Unitary Products Group: SPLIT-SYSTEM AIR CONDITIONER American Standard Heating and Air Conditioning, Unitary Products Group: LIGHT COMMERCIAL A/C UNIT

23 Unitary products group Furnace Manuals and User Guides (89 Models) were found in All-Guides Database, Unitary products group Furnace Installation manual (32 pages), Unitary products group Furnace Installation instructions manual (24 pages), Unitary products group Furnace User's information manual (8 pages), Unitary products group Furnace Installation manual (38 pages), Unitary products group Furnace Installation instructions manual (20 pages), Unitary products group Furnace User's information, maintenance and service manual (12 pages), Unitary products group Furnace Installation instruction (28 pages), Unitary products group Furnace Installation instructions manual (16 pages), Unitary products group Furnace Owner's manual (4 pages), Unitary products group Furnace Installation instruction (4 pages), Unitary products group Furnace Installation instructions (4 pages), Unitary products group Furnace Technical manual (4 pages), Unitary products group Furnace Installation instruction (32 pages), Unitary products group Furnace Installation manual (24 pages), Unitary products group Furnace Technical manual (8 pages), Unitary products group Furnace Use and care instruction (8 pages), Unitary products group Furnace Installation manual (28 pages), Unitary products group Furnace P UR Owner's manual (4 pages), Unitary products group Furnace FG9-UP Owner's manual (4 pages), Unitary products group Furnace G9T-UP Owner's manual (4 pages), Unitary products group Furnace P DH Owner's manual (4 pages), Unitary products group Furnace G8T-UH Owner's manual (4 pages), Unitary products group Furnace G8T-UH Installation instructions (4 pages), Unitary products group Furnace FL8-UH Owner's manual (4 pages), Unitary products group Furnace G8T-DN Owner's manual (4 pages), Unitary products group Furnace G8T-DN Installation instructions (4 pages), Unitary products group Furnace L8T-DN Owner's manual (4 pages), Unitary products group Furnace L8T-DN Installation instructions (4 pages), Unitary products group Furnace L8T-UH Owner's manual (4 pages), Unitary products group Furnace L8T-UH Installation instructions (4 pages), Unitary products group Furnace P*DN Owner's manual (4 pages), Unitary products group Furnace P*HU Owner's manual (4 pages), Unitary products group Furnace G8C 50 Installation instructions manual (24 pages), Unitary products group Furnace L8C 50 Installation instructions manual (24 pages), Unitary products group Furnace P-HMX12F05701 Installation instruction (32 pages), Unitary products group Furnace P-HMX12F08001 Installation instruction (32 pages), Unitary products group Furnace P-HMX14F10001 Installation instruction (32 pages), Unitary products group Furnace AUTOMATIC IGNITION FURNACES, Unitary products group Furnace P2HMX12F08001, Unitary products group Furnace PxDUA12V06401 series, Unitary products group Furnace PxDU series, Unitary products group Furnace P1XU / G9D UPFLOW, Unitary products group Furnace P HU Series, Unitary products group Furnace GY8S Series, Unitary products group Furnace P-HMX12F05701.