ICP Manuals, Parts Lists, Wiring DiagramsManuals, parts lists, wiring diagrams for HVAC equipment: free downloads as PDF files, for ICP or International Comfort Products HVAC equipoment, plus company contact information.
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?
Shown here, an International Comfort Products ICP UNITARY 2T Air Handler W/ Hot Water Coil model No. AHXW32400A for sale in 2021.
ICP International Comfort Products, itself a Carrier HVAC brand, owns or distrubutes Arcoaire, Comfortmaker, Day&Night, Heil, KeepRite and Tempstar HVAC equipment.
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Note that some ICP documents like the oil furnace warranty listed below (2021) carry the parent or Carrier HVAC brand.
"Manufacturers of Airquest, Arcoaire, Comfortmaker, Day & Night, Heil, ICP Commercial, Keeprite, Tempstar and
other quality brand name private label products."
ICP,
International Comfort Products website: http://www.icpusa.com/
ICP is
in turn, is part of
UTC Climate, Controls & Security at https://www.ccs.utc.com/ccs/en/worldwide/contact-us/
UTC in turn is a unit of
United Technologies Corp. that you can also contact at: UNITED TECHNOLOGIES UTC Climate Controls & Security
Also see these ICP brands and equipment information sources:
Also see
ICP Manuals other than those given at the links just above:
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ICP HVAC equipment like the indoor air handler or outdoor compressor-condenser unit is identified by a product data tag or sticker that contains information about the unit.
The data tag will include two key identification fields: the product designation or identification code and the product's individual serial number.
The product designation or model identification code is a character string that provides information about the product type, features and capacity.
[Click to enlarge any image]
See more details in this
The product serial number is a unique character string including numbers that can be decoded to give the product's age and manufacturing details.
ICP HVAC equipment manufacturing date is usually encoded in the serial number
YYWW567890
or in the serial number format
XYYWW56790
(ignore the first alphabetic character, pick up the first four numeric digits, and decode them as YYWW as we illustrate here.
Use the first four numeric digits that form YYWW where YY is year of manufacture and WW is week of manufacture in that year.
The remaining numeric digits, usually 5, form a unique serial numer or manufacturing sequence number of the equipment.
This same manufacturing date encoding appears in most HVAC equipment distributed under the ICP brands of:
Arcoaire, Comfortmaker, Heil, ICP, International Comfort Products, Inter-City Products, Keeprite, Tempstar, and UTC, United Technologies Inc.,
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Below is an example of Heil or ICP HVAC Error or Status Codes, excerpted from the ICP N80ESN IO MANUAL [PDF][Click the image below for a larger view]

Watch out: leave power on while reading an error code or counting LED flashhes on HVAC equipment as turning off power will reset the error code display.
ICP Heil Tempstar Common Error Codes |
|
| LED Status / Flashes | Meaning |
| OFF | No power |
| ON solid | Control Circuit Lockout Gas valve relay stuck open Flame sensor circuit failure Software check error |
| ON Flashing "heartbeat" rate | Normal, no call for heat Check Thermostat |
| 2 Flashes | Pressure switch not open Failed switch, inducer motor Blocked air intake or exhaust Pressure tube obstructed |
| 3 Flashes | Pressure switch not closing properly Check vent for missing cap Check for unusually high wind affecting venting Bad inducer motor Bad pressure switch Insufficient combustion air Blocked exhaust vent |
| 4 Flashes | Limited circuit open Possible flame rollout Blocked exhaust vent Loose or damaged blower wheel High wind Dirty air filter Blower not working |
| 5 Flashes | Flame sensed but gas valve off Bad gas valve or bad control board |
| 6 Flashes | Weak or no flame |
| 7 Flashes | Limited circuit lockout Flame rollout lasted more than 3 minutes (Control auto-resets after 3 hours) |
| 8 Flashes | Gas heat lockout wont reset |
| 10 Flashes | Reversed polarity |
| 1 Flash then 2 Flashes | Blower starts on fire-up (Too early) |
| 6 Flashes then 1 Flash | Ignition lockout (Control auto-resets after 3 hours) |
Three quick and easy troublehshooting steps that may clear several of these ICP or Heil or Tempstar error codes:
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This ICP - Inter-City Products Corp. is a separate company from International Comfort Products company - that ICP company's information is given above on this page.
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Below you will find questions and answers previously posted on this page at its page bottom reader comment box.
Where can I find an International Oil Burner Co Furnace Manual for an old ICP TAC series oil furnace?
I am looking for a manual, or any info really, for a very old International Oil Burner Co Furnace Series TAC 1050. Any info on this?
I can't find anything online. Thank you! On 2023-08-21 by Max
by InspectApedia Publisher
@Max,
To get to the history of the International Furnace brand, in the Comment Box at the end of this page, please post a photo of your furnace data tag and another (one photo per comment) of the furnace itself and we can do some further research for you.
Or atECR INTERNATIONAL BOILERS HVAC AGE MANUALS CONTACT
Thanks
Reply by Moderator
In the Recommended Articles near the bottom of our home page for this topic
at HVAC MANUALS, PARTS, & WIRING DIAGRAMS
you will see a link for
MANUALS & PARTS GUIDES - HVAC Brands F-I
That page will have a link to our page on ICP Furnaces & ICP Furnace manuals - please take a look.
There you'd see that the ICP page is at
ICP MANUALS & PARTS GUIDES - HVAC
and scrolling down that page to the list of ICP manuals
you'll find
ICP NT & ND FURNACE INSTALLATION MANUAL [PDF] (2002) Models: NTG3/FBF & NTC6/GNE NTN3/NBF & NTN6/NNE NDN3/NDF & NDN6/GDE
So you can go grab that free PDF download immediately, but for you and other readers, I wanted to show how to find a manual in our HVAC manuals library.
Question: Get the manual for ICP PHD460000k000F1 and for an Inter City Style BUA60A, MFR # NBCM060XKB2
Cannot find ICP PHD460000k000F1 - Mike dickinson · 2021-05015
Hi. I have an Inter City Style BUA60A, MFR # NBCM060XKB2. No diagrams, etc. Can you tell me where I can find this information, since the furnace has begun acting up and will no longer heat. - On 2019-12-30 by Tracer
Moderator reply:
@Mike dickinson,
Mike: You can find PDF downloads of manuals for your ICP PHD-series unit above on this page.
Tracer: if you can post a photo of the data tag on your old Inter City BUA I'll see what else we can fince besides what's already above on this page.
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