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AIR CONDITIONING & HEAT PUMP SYSTEMS
BACKDRAFTING HEATING EQUIPMENT
BACKUP HEAT for HEAT PUMPS
BANGING HEATING PIPES RADIATORS
BLOWER FAN OPERATION & TESTING
BOOKSTORE - InspectAPedia
BTU USAGE MONITORS
CARBON MONOXIDE - CO
CIRCULATOR PUMPS & RELAYS
DIAGNOSTIC GUIDES A/C / HEAT PUMP
DIAGNOSE & FIX HEATING PROBLEMS-BOILER
DIAGNOSE & FIX HEATING PROBLEMS-FURNACE
DIRECT VENTS / SIDE WALL VENTS
DRAFT REGULATOR, DAMPER, BOOSTER
DUCT SYSTEM & DUCT DEFECTS
ELECTRIC MOTOR DIAGNOSTIC GUIDE
FAN, AIR HANDLER BLOWER UNIT
FLOODED HEATING EQUIPMENT REPAIR
FLUE SIZE SPECIFICATIONS
GAS BURNER FLAME & NOISE DEFECTS
GAS PIPING, VALVES, CONTROLS
GEOTHERMAL HEATING SYSTEMS
HEAT PUMPS, DIAGNOSIS, REPAIR
HEATING COST SAVINGS METHODS
HEATING OIL PIPING TROUBLES
HEATING OIL TANKS
HEATING SYSTEM NOISES
HEATING SYSTEM TYPES
GAS LP & NATURAL GAS SAFETY HAZARDS
MANUALS & PARTS GUIDES - HVAC
MIXING / ANTI-SCALD VALVES
MOTOR OVERLOAD RESET SWITCH
NOISE, HEATING SYSTEMS
ODORS FROM HEATING SYSTEMS
OIL FILTERS on HEATING EQUIPMENT
OIL FILL PIPE LEAKS
OIL SPILL CLEANUP / PREVENTION
PLASTIC PLEXVENT ULTRAVENT RECALL
PUFFBACKS, OIL BURNER
RELIEF VALVE LEAKS
RESET SWITCH, HEATER PRIMARY CONTROL
RESET SWITCH, ELECTRIC MOTOR
RESET SWITCH, STACK RELAY
SAFETY, HEATING INSPECTION
SAFETY RECALLS CHIMNEYS VENTS HEATERS
SOLAR HEATING SYSTEM DESIGNS
SOOT on OIL FIRED HEATING EQUIPMENT
STEAM HEATING SYSTEMS
THERMOSTATS, HEATING / COOLING
VIDEO GUIDES: HEATING SYSTEMS
WINTERIZE A BUILDING
WOOD, COAL STOVES & FIREPLACES
WOOD STOVE SAFETY
ZONE VALVES, HEATING
Manuals, parts lists, wiring diagrams for HVAC equipment: Here we provide free downloadable copies of installation and service manuals for heating, heat pump, and air conditioning equipment, or contact information for the manufacturers who can provide that information for nearly all major brands of HVAC equipment.
We include immediate free downloads of example installation & repair manuals and wiring diagrams for air conditioners, heat pumps, and heating equipment from a variety of manufacturers as well as contact information to obtain the exact manual or wiring diagram for your unit.
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HVAC Manufacturer Contact Information - Heaters, Furnaces, Air Conditioners, Furnaces, Boilers: where to get parts, manuals, help
Free Furnace, Heat Pump, Air Conditioner Installation & Service Manuals, Wiring Diagrams, Parts Lists
Below we provide HVAC manufacturer contact information and direct links to free downloadable installation, service, and users manuals, focusing on hard-to-find manuals for older models or discontinued equipment. We also provide links to the manufacturer's current model lists and literature.
Lennox Corporation has done a better job than some other companies in providing copies of manuals for not only the company's current product line, but also for its older equipment. But HVAC manuals can be hard to find, or expensive, even though the manufacturer's will usually gladly give a copy to a consumer or service technician who needs one.
Before paying for a furnace or boiler or air conditioner manual, see if it is already listed here or at the manufacturer's website. If you have trouble finding a mechanical system installation or service manual, Contact Us and we will research it for you at no charge.
HVAC data tag decoding: For help in decoding air conditioner, boiler, furnace, heat pump, water heater data tags and determining the age, model, or specifications of that equipment, see
In those articles we provide documents with extensive equipment data tag decoding information, both free, and for purchase from other sources.
At Technical Reviewers & References we provide more contact information, links to current model list information, product specifications, and installation/operation manuals for each manufacturer.
But keep in mind that the "Companyname Parts" provider that appears might have nothing to do with the original company, name, or brand. It's worth a call to be sure that the part number or manual are ordering is really for the equipment that you are repairing or servicing. And as we just noted above, usually you can get the information you need from the manufacturer, for free.
If your HVAC equipment is older and is one of the brands whose name has a complex history, and if you can determine the year of manufacture of your equipment it will assist you in tracking down which company is most likely to currently stock parts or manuals for that product.
Reader Question: (June 21, 2014) Doris Aldini said:
Addison Products Company, Addison, Michigan. Outdoor fan motor serial # 28307175397 Mode Number SF93C-1 Fan Motor 1.3 amps Horse Power 1/6 is the unit we have dated 1970 but the house was built in 1984. Well we can hear humming and was wondering if you have a manual to this unit? Thanks! We have an ADDISON SPLIT SYSTEM (1970) AND we get only humming from the outside unit. We can be reached at 845 856 0381 Thanks!
Addison is an international company producing cooling systems, dehumidification equipment, heating systems, and related parts & components, including semi-custom designs and commercial equipment. The company's products include rooftop units and split systems.
Give Addison a call or email to obtain a manual:
Addison HVAC Systems
Below we list some of the larger boiler, furnace, air conditioner, or heat pump manufacturers with links to contact information, online manuals, and identification aids. At left is an Armstrong gas furnace GUK075D14 made in 1994 and used in a gas furnace energy efficiency study. - Yee & Baker (2013)
Currently Amana HVAC products are manufactured by Goodman Global under license.
In 1968 AFCO became part of the climate control division of the Singer Co. In 1970 became Singer American Furnace. See Singer.
American Standard became the Tappan Air Conditioning division in 1972 and was American-Standard purchased by Trane in 1984.
ARCO was bought by SnyderGeneral in 1984 from oil company Atlantic Richfield (ARCO) and was added to Snyder General's Climate Control unit as Arcoaire. In 1991 Arcoaire became part of Inter-City Products (name later changed to International Comfort Products). In 1999, ICP was in turn acquired by United Technologies, the parent of Carrier Corporation. - see Carrier
Arcoaire Air Conditioning & Heating
Arcoaire Air Conditioning & Heating can be contacted at
For more contact information see Carrier
The company's web page describes the various products in its product line. Regrettably the company's website does not provide downloadable manuals, product specification sheets or other details. The website gives no contact information for the company except for this contact address regarding the company's privacy information policy:
UTC Climate, Controls & Security [United Technolgoies Corporation]
See this important BLUERAY Recall notice about older Blueray furnaces and boilers. Later models of the Blueray heating boiler (Blueray furnaces were also manufactured) attempted to correct these safety concerns but the company did not survive its image as dangerous.
The Thermodynamics Boiler Company purchased the remains of the defunct "Blueray Systems", redesigned the heating equipment, and marketed it under several names which included the "Blueray" appellation. Those service people "in the know" realized that the Thermodynamics version of Blueray was a different animal and did not have the same safety concerns as the original.
The company produces heating boilers, hot water tanks, radiant heating equipment, HVAC controls, solar heating equipment, and information about discontinued products. At Technical Reviewers & References we provide more contact information, links to current model list information, product specifications, and installation/operation manuals.
Current heater models such as the Alpine, Freedom CM, CHG, Revolution, Es2, SCG, PVG, Series2, Independence, Minuteman, MPO, MegaSteam, V8H C3, C4, LE, LE-DV, RSA, Carefree, and Alliance - are documented at the US Boiler company's website (see Technical Reviewers & References ) and are easy to find. (The names above are registered Trademarks of US Boiler®™).
To contact Carrier for heating or air conditioning or heat pump products or information call 1-800-Carrier for immediate customer service. The company's website "contact us" link provides a form to send non-emergency-service requests. As Carrier is owned by UTC, also see
UTC Climagte Controls & Security
Carrier Heating Boilers - residential, Carrier Corporation, lists current Carrier heating boiler products at this link:
At Technical Reviewers & References we provide more contact information, links to current model list information, product specifications, and installation/operation manuals.
Shown at left is an InterCity Products gas furnace GUI100A012GIN manufactured in 1991. This 100K BTUI unit was included in a 2013 study of gas furnace energy efficiency improvements conducted for the U.S. Energy Agency. The study is cited just below
I may not have this exactly right because trying to tracek the history of names and brands in the HVAC industry, like the plumbing industry, is a bit like playing whack-a-mole, but the Inter-City HVACR brand, before whack-a-mole'ing over to United Technologies (cf Carrier) acquired either directly or indirectly the following product names & lines: American Air Filter, Arcoaire, Comfortmaker, McQuay, Singer, Snyder General,
Lennox Furnaces, Heat Pumps, Air Conditioners - Contact Information, Manuals, Data Tag Decoding - contact information
To find a Lennox Dealer near you go to http://www.lennox.com/residential/ and enter your zip code in the box at the web page upper right corner, OR use the links to Lennox at the left side of this web page (supplied by Google).
Links to older, hard-to-find Lennox HVAC equipment manuals are provided at this website - LENNOX MANUALS & GUIDES - HVAC just below.
The Lennox Pulse furnace safety inspection is (or was) free, but if the furnace has to be cleaned in order to be inspected, the customer could be charged for the cleaning. See Lennox SAFETY WARNING. At Technical Reviewers & References we provide more contact information, links to current model list information, product specifications, and installation/operation manuals
Lennox: free, downloadable Lennox Pulse Furnace User's Manuals and Service Manuals are listed just below:
Olsen / Airco Heating & Cooling Products include central air conditioning systems, condensing gas fired boilers, conventional gas fired heating boilers, oil fired heating boilers, electric furnaces, oil fired furnaces, and indirect fired water heaters. The company provides an extensive literature download library for which we give a link just below.
We include both Rheem and Ruud brands as well as Raypak (copper tube boilers for swimming pool heating and commercial hot water heating) together because in 1959 Rheem acquired the Ruud manufacturing company. In 2010 we found it difficult to find Rheem and Ruud gas furnace installation manuals online, and found that Rheem's website does not offer easy email or telephone contact information for consumers.
At left is a Rheem gas furnace, RGOA100CER that was used in an energy efficiency study by energy.gov. - Yee & Baker (2013)
Rheem / Ruud Contact Information
Quoting from the Rheem website this history helps understand who produces which brands of heating and cooling equipment:
Rheem/Ruud Gas Furnace Installation Manuals:
We paid an online "Ruud HVAC consultant $20." to tell us where to obtain a manual for a specific Rheem gas furnace model, Rheem Criterion II Plus 2 - Gas Furnace, Model RGPK 07EAMER, Serial FQ5D302 F020601344 (Installed November 2006) – unconscionable to have to do so but that’s the fact – and we are still waiting for an answer. Meanwhile see
Sears Roebuck Air Conditioning, Heat Pump, & Heating Equipment Manuals, Parts, Wiring Diagrams, & Contact Information
Sears HomeCentral provides walk-in repair services: you can bring your window air conditioner or portable air conditioner to a Sears Store or a Sears Parts and Repair Center directly. Sears also offers in-home repair services for major brand appliances of all brands and manufacturers.
Some example wiring diagrams and service/installation manuals for Sears Roebuck or Kenmore HVAC equipment are listed below.
Tracking down parts or manuals for older HVAC equipment can lead to the need to trace the history of companies and company names to a current corporation that purchased, absorbed, or merged with an older company and brand. Singer HVAC equipment is an example of this process.
In 1984 SnyderGeneral operations included Arcoaire, Comfortmaker, McQuay. In 1988 SynderGeneral bought American Air Filter. In 1991, sold Arcoaire & Comfortmaker to Inter-City Products.
In 1982 Singer HVAC became the climate the control division of Snyder General Corporation.
In 1982 became the climate control unit of SnyderGeneral Corp. with name dropped.
In 1984 SnyderGeneral operations included Arcoaire, Comfortmaker, McQuay. By 1984 Snyder General had also acquired Arcoaire and Comfortmaker, McQuay brands, and in 1988 Snyder General acquired AAF - American Air Filter.
In 1988 SynderGeneral bought American Air Filter.
In 1991, sold Arcoaire & Comfortmaker to INTER-CITY Furnaces & HVACR Products.
AAF-McQuay operated as SnyderGeneral until 1994, when that company was purchased by Hong Leong Group Malaysia. Hong Leong in turn is part of Daikin Industries.
Hong Leong continued operation of AAF International and produces air-filtration products under the AAF and AmericanAirFilter brand products.
McQuay International produces commercial air-conditioning and refrigeration equipment (chiller products, air handling systems, applied terminal systems, and industrial refrigeration).
Readers looking for a Singer HVAC or heat pump installation manual, users guide, or parts guide might be able to obtain a manual from AAF or McQuay, but it's doubtful. Try contacting:
Watch out: you might successfully find parts, manuals, wiring diagrams for Singer or other HVAC equipment brands by searching for "Companyname Parts" online. But keep in mind that the "Companyname Parts" provider that appears might have nothing to do with the original company, name, or brand. It's worth a call to be sure that the part number or manual are ordering is really for the equipment that you are repairing or servicing.
Trane - Global Headquarters
Trane North America
Ingersoll Rand Tool Helpline: 1-800-866-5457
The company has offices in Europe and Asia that can be found at the organization's main website given above.
Trianco - Heatmaker U.S. Boilers - 209 Water Street, Wakefield, MA 01880 ,Phone: 781-961-1660 Fax: 781-334-2541, International: 00-1-781-961-1660, info@Heatmaker.com -
Trianco U.S. includes a number of heating systems: 9600 HWG/CB, Endurance EPB/EDP, H & HP Boilers, HW series boilers, and Teledyne Lars heating equipment and parts.
Trianco Boiler Company is headquartered in the U.K.:
Trianco U.K. produces Aztec electric boilers, EuroStar solid fuel boilers.
Trianco - Heatmaker U.S. Boilers - 209 Water Street, Wakefield, MA 01880 ,Phone: 781-961-1660 Fax: 781-334-2541, International: 00-1-781-961-1660, info@Heatmaker.com - includes Teledyne Lars heating equipment and parts.
Trianco Boilers -U.K. - (Aztec electric boilers) -
Trianco Heating Products Limited, Thorncliffe, Chapeltown, Sheffield, S35 2PH, England. Tel: +44 (0) 114 257 2300 Fax: +44 (0) 114 257 1419
At Technical Reviewers & References we provide more contact information, links to current model list information, product specifications, and installation/operation manuals for both of these Trianco companies.
Utica provides a useful document - Utica Radiation Tables - that allows a homeowner or heating service technician to determine the heat output of a traditional cast iron radiator, measured in square feet of radiation for column, tube, and wall-type heating radiators.
Utica Boilers - The company's Utica Boiler Literature Page link: http://www.uticaboilers.com/product_literature.asp provides download links to current product information for the company's list of approximately 40 products (see below for current models) Utica provides a useful document - Utica Radiation Tables - that allows a homeowner or heating service technician to determine the heat output of a traditional cast iron radiator, measured in square feet of radiation. - Original document source: http://www.ecrinternational.com/secure/upload/document/293.pdf
At Technical Reviewers & References we provide more contact information, links to current model list information, product specifications, and installation/operation manuals.
United Technolgies, or UTC, is a conglomerate corporation based in Connecticut in the U.S. that includes also Otis, Pratt Whitney, Sikorsky, UTC Aerospace Systems, and UTC Climate, Controls & Security
Weil McLain Company Boilers, Furnaces, Air Conditioners, Baseboards, Water Heaters, Controls - contact information
Weil McLain Corporation
Links to older, hard-to-find Weil McLain HVAC equipment manuals are provided at Weil McLain Boiler & Furnace User's Manuals just below.
See this Weil McLain RECALL
Weil McLain: free, downloadable Weil McLain Boiler & Furnace User's Manuals and Service Manuals are listed just below
Weil McLain Corporation - Discontinued furnaces and boilers and parts lists are documented at this link: http://www.weil-mclain.com/en/our-products/discontinued-boilers.aspx including the following equipment:
Williamson was by Hupp Industries that in turn went bankrupt in 1991. The Williamson name was purchased by Metzger Machine (Milwaukee Thermoflo) and continued in use on furnaces until 1999 when the name was purchased by United Dominion (Weil-McLain's parent)
See Weil McLain
Johnson Controls, York Corporation - website http://www.york.com/
York HVAC Systems mailing address and telephone:
York Parts Centers: http://www.johnsoncontrols.com/publish/us/en/products/building_efficiency/integrated_hvac_systems/parts_center.html
York HVAC Controls, including actuators, dampers, heating products, sensors, thermostats, valves, variable speed drives,
To find manuals for York HVAC equipment or controls, try the search function on any of the company's web pages at the web links we've given just above. The York PDF's below were located by web search June 2010 see the web links above for original sources.
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