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(To
quick install trial,
purchase or update: Click
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THIS IS AN
ACCA MANUAL S
"OTHER APPROVED METHOD"
This is the PREMIUM "Other approved software"
referred to in ICC codes,
and best satisfies
the need for compliant ACCA Manual S results PROPERLY and quickly,
wherever ICC code mandates are enforced, requiring this; "approved" by the building official.
IT IS THE FIRST, AND ONLY SOFTWARE MADE WITH CARE TO BE FAITHFULL TO THE
INTENTS OF ACCA'S MANUAL S AUTHOR, HANK RUTKOWSKI. OTC MAKE'S NO MOCKERY
OF HIS WORK!
You get confirmation of the the best matched systems, AND the proper
configuration
settings YOU need for them, for maximum comfort anywhere in America.
With only a 2.3% average calculation error
(and much less opportunity for human error),
it has never been rejected, and is trusted, even by "strict" building officials.
-----------------------------------
DISCLAIMER WARNING ---------------------------
THIS NEW
PRODUCT VERSION
(release v.24.25.10)
ONLY DIFFERS FROM THE PRE - SEER1 RELEASE, WITH NEW LIABILITY WARNINGS (and some
minor appearance items)
DO
NOT USE IT,
for
NEW
mandated 2023 AHRI
M1 RATINGS
JUST YET,
(OTC
WAS CREATED FOR THE AHRI 210-240/2017
M
RATING METHOD USED FOR THE LAST 70YRS.)
The
next release of OTC will have a selection for either,
using
the AHRI website conversion formulas.
BECAUSE JANUARY 2023 DOE CHANGES TO A RADICALLY NEW 210-240 2023 METHOD
WERE JUST MANDATED, ONLY THE 210-240 2017 AHRI RATING
STANDARD WERE EVER TESTED WITH THE CURRENT OFF-THE-CHARTS PRODUCT. With OTC YOU MUST
VERIFY YOUR EQUIPMENT SELECTION ON THE ARHI WEBSITE STILL SHOWS RATINGS UNDER
THE STANDARD 210-240 2007 (M) COLUMN, AS SHOWN BELOW, OR A "YES" UNDER
THE "DESIGNATED TESTED COMBINATION" COLUMN.
DO NOT USE ANY DATA FROM THE 210-240 2023 (M1)
COLUMNS, (see AHRI directory screenshot below) WITH THE Off-the-Charts
PRODUCT!!! RESULTS WILL NOT BE COMPLIANT TO ACCA MANUAL S METHOD, AND THE HVAC
CONTRACTOR ALWAYS BEARS THE LIABILITY ON THIS.
(But research will proceed on OTC, to possibly develop the
new algorithms needed)
THE GOOD NEWS
IS THIS NEW RATING MAY NEVER TAKE ROOT, CONSIDERING A DIRECTORY SEARCH OF A
MAJOR BRAND'S ENTIRE LISTINGS, ONLY RESULTED IN THESE 6 "TESTED" NEW
STANDARD RATINGS OUT OF 194,794 TOTAL RESULTS!
Use this link
to AHRI directory for verification.
-------------------------- END OF DISCLAIMER
-----------------------------------
For Off-the-Charts in a
nutshell;
Click
here to
watch one-minute You-Tube promo
We are open to inquiries from capital
investor(s). The seeds of OTC were planted nationwide, and common sense could take root very
soon.
(For
"Off-the-Charts©
for educators",click here:
College Instructors and Professors of HVAC)
THIS IS A UNIVERSAL CONTRACTOR MODELING SPREADSHEET"
(OTC),
AN ALTERNATIVE (AND COMPLIANT) METHOD TO ACCA'S MANUAL S, FOR RESIDENTIAL HVAC
EQUIPMENT SELECTION.
For pity's sake, why is our industry stuck on
stupid? Everyone just does their own thing with this, including fancy $$$ load-calc software.
EVEN THE NEW "ONLINE" EQUIPMENT CALCULATORS
DON'T MATCH THEIR OWN PRINTED DATA!
Get results, with no Expanded Data charts
needed!
1. Why would I need "Manual S"?
ICC code dictates it.
2. What's it for?
It's used AFTER the load
calculation, to select equipment.
3. Why not just use the model # ?
Model numbers only roughly
give a clue on BTU capacity.
5. Usn't AHRI giving the capacity?
AHRI rating is nominal, like a
MPG sticker on a car.
4. Who's going to know anyway?
The home occupant may not get
the correct size unit and comfort. This is really just the 2nd half of
load calculation.
5. I think I have Manual S in my software already, why
pay for this?
BECAUSE NOBODY DOES THIS
BETTER! WE DID IT FIRST,
YOU CAN FACT-CHECK THAT!
NO ONE ELSE HAD MANUAL S IN THEIR PRODUCT, UNTIL THEY SAW OFF-THE-CHARTS, AND
THEN GAMED THEIR PRODUCT TO KEEP UP.
We have found current popular
software is time consuming, over complex to use, missing pieces of ACCA's
guidelines, and NOT compliant to their manual. Some just crudely added the feature
recently by R&D (rip-off & duplicate), just to compete with OTC.
(They are an insult to ACCA's intent, and
are missing the best features of Mr. Rutkowski's Manual S)
More frequently Asked Questions
about OTC (Click the star)
This OTC method was presented at the 2019 HVAC Excellence National Educators
Conference, with good reviews, and the presentation is available for purchase on thier website. Click star to see
the PowerPoint presentation:
**************************************
Version detail, install trial,
purchase or update:
Click
the star
**************************************
Why Use OTC instead of ACCA method?
Click the star
Videos for program usage
Click the star
The science of "Equipment
Selection"
Click the star
Compliance of OTC with Codes
and Other Standards
Click the star
Using OTC with Elite's Rhvac program
Click the star
not approved by ACCA Manual S
12/22/23 |