Building Inspection, Diagnosis & Repair Info

Lennox pulse furnace logo for identificationHVAC Manuals, Parts Lists, Wiring Diagrams

Manuals, parts lists, wiring diagrams for HVAC (Heating, Ventilation, Air Conditioning) equipment: air conditioners, boilers, furnaces, heaters, etc.

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.

InspectAPedia tolerates no conflicts of interest. We have no relationship with advertisers, products, or services discussed at this website.

- Daniel Friedman, Publisher/Editor/Author - See WHO ARE WE?


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HVAC Manufacturer Contact Information - Heaters, Furnaces, Air Conditioners, Furnaces, Boilers: where to get parts, manuals, help

Armstrong gas furnace GUK075D14-19 - energy efficiency study energy.gov (2013)Master Index to Direct Links to Free Downloads of Air Conditioner Manuals, parts lists, wiring diagrams. Direct Links to Free Downloads of Furnace Manuals, parts lists, wiring diagrams, age decoders.

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, wiring diagrams, 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.

We include free downloads of air conditioner, boiler & heat pump manuals.

At the end of this page we link to related lists of other installation & operation manuals for other building mechanical systems such as water heaters, water softenes, well & water pumps & controls.

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

Master Index to U.S. & UK HVAC Manuals & Guides

Photo above: an Armstrong gas furnace GUK075D14 made in 1994 and used in a gas furnace energy efficiency study. - Yee & Baker (2013)

A manual for the rust-damaged heater shown in our photo is at SEARS GUK-FURNACE MANUAL (ICP) [PDF] (1996) manufactured by Inter-City Products Corp. (ICP), Lavergne, TN USA 37806 - illustrating the confusion among HVAC equipment product names, retailer's name, and the name of the actual manufacturer.

Our Master Index to US & UK HVAC MANUALS, wiring diagrams, installation and repair guides arranged alphabetically, begins below.

Or see one of the links to a specific brand in these alphabetic sub-groups:

Also see this separate

AGE of AIR CONDITIONERS & HEAT PUMPS - data tag age decocder

 

Admiral Air Conditioners cited at InspectApedia.com

Airborne_Mold_Count_Number_Guide.php

GM-Delco-Heat-Boiler-Data-Tag (C) InspectApedia.com Sean

Ewart & Son New Crown Boiler, U.K. cited & discussed at InspectApedia.com

 

 

Holland Funace Company, 1937 Ad cited at InspectApedia.com

Homer Pipeless Furnace, Home Furnace Company, Coldwater Michigan at InspectApedia.com

Jones & Attwood small home heating boilers in the UK - the Domestikatum cited & discussed at InspectApedia.com

Kalamazoo heating furnace ad from 1948 - at InspectApedia.com

Mueller Climatrol heater data tag (C) InspectApedia.com

The Excelsior Stove produced by National Furnaces, Quincy IL cited at InspectApedia.com

 

 

1925 Thatcher Furnace cited & discussed at InspectApedia.com

 

 

 

 

 

Windsor Furnace, illustrated at InspectApedia.com

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.

 

On many InspectApedia pages, at the page bottom References or Citations we provide more contact information, links to current model list information, product specifications, and installation/operation manuals for each manufacturer.

Wiring diagram for Sears window air conditionre - example

Watch out:  you might successfully find parts, manuals, wiring diagrams for Sears (at left), 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.

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.

To determine the age of your equipment,

see AGE of AIR CONDITIONERS & HEAT PUMPS

or AGE of HEATERS, BOILERS, FURNACES.

...


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Reader Comments, Questions & Answers About The Article Above

Below you will find questions and answers previously posted on this page at its page bottom reader comment box.

Reader Q&A - also see RECOMMENDED ARTICLES & FAQs

Monitor Ductless split system manual needed

I need service info for a Monitor brand ductless split system. The company was in Robbinsville New Jersey but appears to no longer exist. Anybody have any ideas? Thanks. michael austin 2022/06/20

Moderator reply:

I'm researching and will post what we can find here.

Please help me by posting a photo of your Monitor ductless split system data tag.

Seeing the company name and model number can help us find the right manual. "Ductless" alone is too generic a term to choose a manual.

 

Troubleshooting a Model MDG18FA-A

Model MDG18FA-A blows out hot air and then cool air? - On 2021-03-10 y Melissa Clark -

Reply by (mod) -

@Melissa Clark, that sounds as if there is either a loose, shorting control wire or thermostat wire, or more-likely a failing control board or reversing valve (if your unit is a heat pump)

What is the product brand?

Do I need to drain the boiler to swap out the Aquastat controller

do i need to drain boiler to remove aquastat - On 2021-01-26 by hampton

Reply by (mod) - partial drainage required, not complete drainage

Hampton

The boiler has to be

- power off
- cool (avoid getting burned)
- drained sufficiently that water level is below the aquastat mounting point

then you'll also have to purge air from the system after the repair

 

HAS105BD2F - How do I find the fuse for my boiler?

need help finding the fuse - On 2020-07-25 by Furnace

Reply by (mod) - need brand, not just model number to provide help finding furnace fuse but start at the electric panel

We'll be glad to help you but we need to know the BRAND not just the model number of your HVAC equipment in order to find the manual or instructions needed.

While some heaters have a separate fuse or circuit breaker right at the unit, more-often there will be a fuse or circuit breaker marked "HEAT" found in your electrical panel.

Start there, and keep me posted. Daniel.

What causes a pressure switch failure signalled by 3 flashes on the control board?

Manifold: 3 flashes on the board signal pressure switch failure, could that be caused by a air-in leak threw a burnt manifold gasket? - On 2020-01-17 by Anonymous (Doug)

Reply by (mod) -

Doug that sounds reasonable to me but it's be more accurate, when interpreting the meaning of 3 LED flashes on a circuit board if you gave the product brand and model.

That lets you check the specific service manual for your unit.

...

Continue reading at MANUALS for HEATING & A/C SYSTEM CONTROLS, or select a topic from the closely-related articles below, or see the complete ARTICLE INDEX.

Or see MANUALS & PARTS GUIDES for HVAC FAQs - Q&A posted originally on this page

Or see these

Recommended Articles

Suggested citation for this web page

MANUALS & PARTS GUIDES - HVAC at InspectApedia.com - online encyclopedia of building & environmental inspection, testing, diagnosis, repair, & problem prevention advice.

Or see this

INDEX to RELATED ARTICLES: ARTICLE INDEX to AIR CONDITIONING & HEAT PUMPS

Or use the SEARCH BOX found below to Ask a Question or Search InspectApedia

Or see

INDEX to RELATED ARTICLES: ARTICLE INDEX to HEATING SYSTEMS

Or use the SEARCH BOX found below to Ask a Question or Search InspectApedia

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