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Q&A on where to find manuals, wiring diagrams, instructions for HVAC systems

FAQs on finding manuals, parts lists, wiring diagrams for HVAC equipment: air conditioners, boilers, furnaces, heaters

Questions & answers on how to find manuals for Air Conditioners, Boilers, Furnaces, Heat Pumps.

This article series provides 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.

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FAQs on Finding Manuals, Guides, Wiring for Heaters, Furnaces, Air Conditioners, Furnaces, Boilers

Armstrong gas furnace GUK075D14-19 - energy efficiency study energy.gov (2013)Questions & answers about how to find manuals, wiring diagrams, instructions, repair procedures, installation & operation guides for all equipment found in residential and light-commercial buildings, posted originally

at MANUALS & PARTS GUIDES - HVAC

Lists of Links to free PDF file manual downloads & manufacturer contact information:

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

this HVAC MANUALS MASTER INDEX

Carrier furnace model# 28RDi4800 manual needed

I have a customer thats lives way out of town and they have an old Carrier furnace model# 28RDi4800 they say it's making a thumping noise in the blower compartment so my question is does this furnace have a beit driven blower motor so I'll know what to take with me Thanks. On 2019-06-21 by stevenharwell84 -

by (mod) -

Steven I can't find this furnace either.

Carrier's site doesn't list the model.

First: ask your customer to give you a photo of the furnace data tag - if they read it wrong that could explain why you can't find the model

I do my search for Carrier manuals using the first 4-6 digits of the model number. In this case Carrier 28RD

the closest I could find was

CARRIER 28RD- 58 FURNACE MANUAL [PDF] (2018) Note: this is a generic induced draft furnace manual by Carrier, Catalog NO. OM58-152

I'd give them Carrier call at 1-800-Carrier (1-800-227-7437)

and check out the other Carrier furnace manuals listed

at CARRIER AIR CONDITIONERS BOILERS FURNACES AGE MANUALS also see Bryant and Payne


York Furnace. Model: UGC105D11N 1A.

Looking for a manual for an old York Furnace. Model: UGC105D11N 1A.

It makes a terrible fan vibrating noise when the burners first start up.

When I open the access panel I don’t see a visible draft inducer motor. Any help would be appreciated. On 2018-12-10 by Jason

Reply by mod

See your manual download at YORK INTERNATIONAL AC & HEATER Manuals, York International


LENNOX G12RQ3E-B2-12 blower won't start

LENOX G12RQ3E-B2-12

Looking for a wiring diagram.

Ignighter starts, flame starts, but blower motor doesn't start.
I can manually turn on the fan on, but then I have to stop it, as then it continues in auto till the fan don't start it again. Any help On 2018-12-08 by Gary Jackson

Reply by (mod) -

Watch the temperature dial in the fan limit switch after the burner turns on.

You should see the tile slowly rotate as the heating plenum warms up. If the dial rotates to the fan on position marked on the dial and the blower still does not start I would check all wiring connections for looseness or corrosion. If wiring is correct I would replace the switch.

Get the manal with wiring diagrams

at LENNOX HVAC MANUALS & PARTS GUIDES Air Conditioners, Furnaces, Heat Pumps


Want a Sears Coldspot AC manual and age decoder

P.S. the Sears Coldspot is being used as a through the wall AC, but it seems that was a window AC. My apologies if I have posted a question in the wrong area.

I have a Sears Coldspot air conditioner that from images on the web, it was built in the 1960s or 1970s.

The model number is 106.70171. I have determined that the first three digits, 106, meant that it was manufactured by Whirlpool.

I am trying to decode the last five digits, 70171. Thanks for your help in advance. On 2018-07-12 by Juan

Reply by (mod) -

Try the Sears entries at AGE of AIR CONDITIONERS & HEAT PUMPS - separate web page: how to de-code the serial number in the data tag to get cooling or heat pump equipment age


What's causing a rattling HVAC blower fan

I have a 1968 'American Standard' gas forced air furnace.
The fan unit starts to rattle and make noise when the heater is started.

The noise stopped when I removed the louvered screen and filter.
Any ideas on what is causing this; and How to fix the problem?
Thanks On 2017-07-27 by PETER

Reply by (mod) -

Interesting, Peter.

Perhaps the screen and filter were themselves loose?

Or

With power OFF you might see if the squirrel cage blower fan wiggles in its mount - signaling a worn fan bearing, or if there is a loose pully if your fan isn't a direct-drive unit.

Sometimes when a fan part is rattling around if we simply disturb it or change the air flow through it the rattling will cease or change - for a time.

We can fix the problem when we know what's loose.

 

Where is the pilot/igniter in a Goodman/Janitrol (1982 model) home furnace

Hi,

I have a Goodman/Janitrol (1982 model) home furnace. Can someone please tell me where the pilot/igniter is located?

Thus far, I haven't seen any buttons/switches that say 'pilot' or 'igniter'.

Thanks in advance!
RicoWill44 On 2016-11-18 by Ricowill44

Reply by mod

Rico,

I'm not sure about a 1982 model - but on current Goodman gas furnaces the igniter is electronic, so you won't see a pilot. The igniter is a ceramic and wire spark generator over the gas burner. Following wires at the burner area will point to it.

If yours is an older model that uses an actual pilot flame then there will be a thermocouple - search Inspectapedia for THERMOCOUPLE to see what that component looks like, then follow the small copper tube from the gas valve towards the burner.

See GOODMAN HVAC MANUALS & ERROR CODES to get the manual for your heater

 

What do I call the fastener that holds the door on my Comfortmaker Furnace?

i have 1999 comfort maker in order to take the door i have unscrew a cap like what is screw what is it called called thx a custome On 2016-11-18 by tammy

by (mod) - 1999 comfort maker door thumbscrew replacement

Tammy

Most-likely you're un-screwing a thumbscrew - a fastener designed to permit loosening by hand or without a screwdriver or nut-driver.

If you needed to buy one you'd ask for a "knurled thumbscrew" but you'd need to know the length and thread size and type of the knurled thumbscrew to get the right one.

Best would be to take one of the remaining ones that you haven't lost over to a hardware store for matching, or to a heating supplier, or to a fastener supplier.

Rhino, for example, makes and sells knurled thumbscrews online, as do Morton Machine Works, RAF Electronic, Winco, Gibraltar, and Nemco.

 

How do I provide combustion air to a Peerlerss boiler?

I am a general contractor doing a finished basement and enclosing the mechanical room ( boiler& furnace ) the village we are working in is requiring the combustion air necessary for that equipment as in what size fresh air duct we would need to adequately supply this mechanical room.

The existing boiler is a peerless jotw-150-Wpc Ser# jotw128540-1193 the new furnace is a rheem rocb072po4 oil fired model If you could help in what I need for make our combustion air I would greatly appreciate it ! Email is. Jscontract@optonline.net On 2016-10-19 by Joe Simon

by (mod) peerless jotw-150-Wpc combustion air requiremenbts

Joe,
Typically you need at least 1 sq.in. of open air intake per 1000 input BTUH of the heater. That's open space. So if the air intake is screened or louvered you need to increase the sq.in. of air intake accordingly.

See details at COMBUSTION AIR REQUIREMENTS


Need wiring diagram for an old GE/Trane condenser unit

I need a wiring diagram for an old GE/Trane condenser unit BTN936A100B2. On 2016-08-05 by bob

by (mod)

Bob,

See TRANE AIR CONDITIONER FURNACE HEAT PUMP MANUALS & PARTS manuals & wiring diagrams & contact information

First I'd look inside the covers as often the condenser includes a wiring diagram.

Second if you don't have the installation manual (that also includes a wiring diagram for most cases),
I'd contact Trane at
Trane AC
6200 Troup Highway
Tyler, TX 75707
www.trane.com

 

Find the manual for Armstrong Gas Heater. Model # 113-G8-80

Hi. We're trying to find a manual for an older residential Armstrong Gas Heater.

Model # 113-G8-80 (as best we can tell from unit), Serial # D G7. It's an 80k btu natural gas forced air furnace. Would anyone have anything close to this model? email is pdahl@jillsoncompany.com phone is 508-485-0500. Thanks again so much for any assistance you can provide. On 2015-12-14 by Peg

Reply by mod

Peg:

Start at ARMSTRONG HEATER AGE MANUALS CONTACT where we have free manuals as downloadable PDFs

Have you tried contacting Armstrong Air at 215 Metropolitan Drive, West Columbia, SC 29170 • 1-800-448-5872 - they also have a website: http://www.armstrongair.com/

 

Get me a service manual for carrier PWD-4d, Boiler #BW2AAN000105ABAA

We are looking for a service manual for carrier PWD-4d, Boiler #BW2AAN000105ABAA, s/n 3808V02457 We can't find one in all of our webb site. Please help. (Oct 25, 2011) Cindy Bruno said:

Reply:

Cindy, we took our online copies of most manuals offline in response to Google's search and site characterization procedures.

See

Also see

Carrier Heating Boilers - residential, Carrier Corporation, lists current Carrier heating boiler products at this link:
residential [DOT] carrier [DOT] com/products/boilers/index [DOT] shtml but you will have to trace through some links to find the downloads for individual current product installation and service manuals such as Carrier's Model BW9 Gas-Fired Direct-Vent Condensing Water Boiler User's Information Manual.

 

 

Downloadable 1992 copy of the warranty for Buderus boiler

How can I access a downloadable 1992 copy of the warranty for Buderus boiler? (June 12, 2014) Sylvia Ruth Gray said:

Reply:

See the downloads at BUDERUS HEATING BOILERS

Or contact the company directly at

Buderus USA
Bosch Thermotechnology
50 Wentworth Avenue
Londonderry NH, 03053
Toll Free: 800-283-3787
Fax Numbers
GENERAL FAX: 603-965-7567
TECH SUPPORT FAX: 603-965-7581

 

Need Furnace wall clearance distances

Looking to find out the allowable wall clearance for building around the furnace.

We have a wall that is 4 inches away from the side of furnace. All other sides are accessible. Is this wall placement ok. Building inspector says they follow manufacturer recommendation and I can't find Manuel. Please advise. Thank you. Email is: thrivingnurse@gmail.com (Aug 8, 2014) Tammy Montray

Reply:

Tammy,

If your furnace is a recent model you can identify it's brand, model, serial number, then give the manufacturer a call to obtain the clearances and to ask for a copy of the installation manual. From just your note we can't say a thing - as we don't know what furnace you're describing.

Download the manual for your specific furnace at

MANUALS & PARTS GUIDES - HVAC since the installation manual for your furnace will have the measurements that the manufacturer specifies.

Also take a look at the guidelines at

CLEARANCE DISTANCE, HVAC

 

Arcoaire gas unit specs? Olsen Gas Furnace manual

Need specs for arcoaire PGD324040K001C1 gas package unit - (Sept 23, 2014) Anonymous

I have an old olsen was-58a gas furnace.
serial number shows up as : n-w-1358a
There is no diagram for lighting the furnace, and no troubleshooting guide. i have tried the olsen/airco page, but, nothing is listed there at all... :/ stuck, stumped, and freezing my buns off... any ideas? (Dec 8, 2014) james dunlop

Reply:

Anon: see ARCOAIRE AIR CONDITIONERS HEAT PUMPS GAS FURNACES

James: For an Olsen manual see OLSEN AIRCO HVAC Olsen / Air Co Boilers

You can contact Olsen / Airco at www.olsenhvac.com/ where you'll find contact data for the U.S. or Canada

In the U.S.

Olsen/Airco Heating & Cooling Products - USA
P.O. Box 4729
2201 Dwyer Ave., Utica, NY 13504

Phone: (315) 797-1310

Homeowner Assistance Call: 866-847-6656

 

Need information source for a Cambrian Inter-City Oil Furnace

Serial #045697 said:
Please send information and manual for 40 yr old Cambrian Inter-City oil furnace.

jvincerz@gmail.com

Reply:

JV

In the article INTER-CITY PRODUCTS (ICP) you can find data on manuals and parts for Inter City furnaces.

 

Need manual for older Burnham furnace

We have an older Burnham boiler which now makes a humming noise when the water pump kicks on. Is there a simple preventative thing we can do to stop that like adding oil or something? If so where does one do that?

There is no model number on the outside of this furnace so even Burnham can't really help us. Thanks (Feb 12, 2015) Danny said:

Reply:

If the sound is coming from the motor itself it may need replacement; if the sound is coming from a control it may just be a buzzing relay that needs to be replaced. Most such motors are rather standard - take the old parts to your HVAC service supplier for an equivalent replacement.

For a manual for your Burnham furnace see BURHNAM AGE CONTACT MANUALS and look at the manual publication dates closest to your unit's age

 

 

Johnson Corporation Garage Heater Model# KAS130A

Anyone know where i can get info on a Johnson Corporation Garage Heater Model# KAS130A (July 7, 2015) garage heater said:

Reply:

Sure,. see JOHNSON CONTROLS: HVAC controls, HVAC systems, Security systems, other products, Heating & Cooling, Garage Heaters

 

How do I make summer furnace settings

How do I reverse or change the furnace for the summer (July 19, 2015) sharon said:

Reply:

Sharon, see the procedure at COOL OFF HEAT, THERMOSTAT SWITCH

 

Rudd central air conditioner - can't read model number. Burned out circuit board.

I have a Rudd central air cond. The printed circuit board on the condenser side burned out .I dont know the mod.Number but I hace the ac unit model and serial numbers. How can I find the part? (Aug 13, 2015) JOHN

Reply:

John you will need the outdoor condenser model and serial number; if they were installed at the same time, some photos or your manuals will identify the equipment. Otherwise take the old board to your local supplier for help matching a replacement unit.

 

Short cycling Lennox model No. G20RQ3E-75-5, gas heat


My Lennox hvac unit short cycles on heat, staying on for only about a minute. It's a model No. G20RQ3E-75-5, gas heat. Please advise. It doesn't appear to have a flame sensor, but has a button thermostat above the burners. Thanks: Ed. (Oct 4, 2015) Ed Koonce said:

Reply:

Sure, Ed. See FURNACE FAN CYCLES DURING HEAT -

 

I need Rheem Gaspack help

need help dianoising rheem gaspack 2015/10/24 floyd said:

Reply:

Floyd in looking for Rheem manuals, see RHEEM & RUUD

 

Service manual for a Magic Chef Model EG6E80DC16-1

2015/10/25 Mike said:
I am looking for a service manual for a Magic Chef Model EG6E80DC16-1
Thank you.

Reply:

Sure Mike, see Magic Chef Appliances & Manuals, also support for Ewave, Norpole, Sunbeam & Oster

 

Where can I download a York Heat Pump wiring diagram Model ea120cooa4aaa1a

Anonymous said:
I need a wiring diagram for york heat pump model ea120cooa4aaa1a

Reply:

Anon you can get the manual you need at YORK HVAC MANUALS and the manual has the wiring diagram.


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