Flamemaster gas furnace logo (C) InspecApediaHVAC Manuals, Parts Lists, Wiring Diagrams
Group 2 F-O

  • MANUALS & PARTS GUIDES - HVAC Group 2 F-O - CONTENTS: Direct Links to Free Downloads of Air Conditioner Manuals, parts lists, wiring diagrams. Direct Links to Free Downloads of Furnace Manualsparts lists, wiring diagrams. Direct Links to Free Downloads of Heat Pump parts lists, wiring diagrams. Direct Links to Free Downloads of Boiler Manuals. Links to free copies of Lennox Equipment Installation, Service, & Owners Manuals for Lennox furnaces, Lennox heat pumps, Lennox Air Conditioners. Furnace & Boiler recalls, heating system safety notices
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Manuals, parts lists, wiring diagrams for HVAC equipment:

Free downloadable manuals for Air Conditioners, Boilers, Furnaces, Heat Pumps. 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 links to contact information for each manufacturer or producer of these air conditioners, heat pumps, furnaces, boilers and related equipment, parts, and installation, repair, wiring diagrams, manuals.

We include immediate 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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Heaters, Furnaces, Air Conditioners, Furnaces, Boilers: parts, manuals, help, Group 2, Brands F-O

Example parts list for window A/C unit from Sears 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.

Note: for page loading speed this index to HVAC manuals is spread across several pages, but all of the individual companies are listed in

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.

Also see MANUALS for HEATING SYSTEM CONTROLS for a list of free downloadable PDF files of common heating system controls used on boilers, furnaces, heat pumps.

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 REFERENCES we provide more contact information, links to current model list information, product specifications, and installation/operation manuals for each manufacturer.

Ferroli Boilers UK

Flame-Master Gas Furnaces - a little information

Flamemaster gas furnace logo (C) InspecApediaWatch out: Names and who is using them can change over time: for example the name "Flamemaster" appears on other products such as sealants, coatings and packaging produced by Flamemaster in Pacoima California, US - not a heting equipment manufacturer.

The product line Flamemaster gas furnaces shared product designs with ClimateMater. ClimateMaster continues in business (in 2015) as a manufactuer of geothermal heat pump systems. Here is what we have found of the history of Flame Master furnaces and Flame-Master furnace manua availability.

Watch out: some spoofing websites have gamed the search engines when you search for Flame-Master Furnace Manual and either load executable virus files or tell you they're giving you a Flame-Master Furnace manual but actually deliver a manual for a Kil 1825 Router. If a reader can share a Flame-Master furance manual with our other readers, contact us using the page-bottom CONTACT link. - Ed.

Fraser Johnson Furnaces - information

Fraser Johnson gas furnace PBKM series built in 1994 - US DOE studyShown here is a Fraser Johnson gas furnace, PKBM series, made in 1994 and used in the US DOE gas furnace energy efficiency study. - Yee & Baker (2013)

Unitary Products: Contact Information: 5005 York Dr., Norman, OK 73069 United States Tel: (405)364-4040

For Consumer Relations please contact UPG Consumer Relations toll free at: (877) 874-7378



It takes some clicking to find help but the company does an excellent job of providing online downloadable PDF files of user information and manuals for their equipment. A few examples are just below:

Friedrich Air Conditioners, Split Systems, Heat Pump Manuals & Guides

Fujitsu Air Conditioners, Mini Splits, Heat Pumps

Generic - "Brand-X" HVAC Systems Manuals

Goodman HVAC

Grant Boilers, Grant Euroflame

HAIER Air conditioners, dishwashers, electric motors

Zhang-Qiu-Hai-Er-QC.J-01-AC-Motor data tag showing start capacitor rating  (C)

Photo: Zhang Qiu Hai Er DianJi You Xian Gong Si the manufacturer for this particular Haier electric motor, model QC.J 01 provided courtesy of reader T.J. 2017/07/14

Also see HOW to CHOOSE a START / RUN CAPACITOR where repairs for this motor are discussed.

HONEYWELL CONTROLS on HVAC Equipment, thermostats, primary controls, zone valves

Hydrolevel Controls

Intellidyne LLC

Inter-City Products Furnaces

Inter-City Products Gas Furnace GUI100 series from 1991 - energy.govShown 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 track 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,

Johnson HVAC Controls, Furnaces, Garage Heaters, HVAC systems, Manuals

Watch out: these local dealers or service companies are not a product manufacturer but the company's website may come out on top when searching for contact information for Johnson garage heaters, or HVAC systems.

Lennox Furnaces, Heat Pumps, Air Conditioners - Contact Information, Manuals, Data Tag Decoding - contact information

To find a Lennox Dealer near you go to 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.


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:

LG HVAC Systems

Magic Chef Appliance Manuals & Contact Information

McDonnell & Miller Controls for Heating Equipment, Boilers, Steam Boilers

ITT McDonnell & Miller LWCO Type 801 802 851 (C) InspectApedia

Mirage mini split air conditioning system Manuals & Contact Information

Olsen Airco HVAC Systems

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.


Continue reading at MANUALS for HEATING SYSTEM CONTROLS or select a topic from closely-related articles below, or see our complete INDEX to RELATED ARTICLES below.

MANUALS & PARTS GUIDES - HVAC - home - Master Index to All Brand Names & A-E HVAC manuals, wiring diagrams, installation and repair guides

MANUALS & PARTS GUIDES - HVAC Group 2 F-O - Brand Names beginning with F-O HVAC manuals, wiring diagrams, installation and repair guides

MANUALS & PARTS GUIDES - HVAC Group 3 P-S - Brand Names beginning with P-S HVAC manuals, wiring diagrams, installation and repair guides

MANUALS & PARTS GUIDES - HVAC Group 4 T-Z - Brand Names beginning with T-Z HVAC manuals, wiring diagrams, installation and repair guides


Or see AGE of WATER HEATERS - data tag decoding, contact information for water heater manufacturers, water heater manuals


Or see BOILERS, HEATING - home


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