<-- (Home page of this product's parent company is here)
(To
go directly to install OTC trial,
purchase or update: Click
the star 
 )
NEW DUAL-SEER RELEASE
NOW AVAILABLE
THIS IS A DESKTOP
PRODUCT, COMPLIANT TO ACCA MANUAL S
IT IS AN "OTHER APPROVED METHOD", AS REQUIRED PER ICC,
FOR RESIDENTIAL HVAC CAPACITY MATCHING.
THIS NEW
PRODUCT VERSION
(release v24.41)
HAS THE
SAME SEER1 USAGE, BUT NOW CAN WORK THE SAME FOR SEER2 RATINGS WITH ONE
CLICK, SELECTED
FOR EACH SYSTEM.
(OTC
WAS INITIALLY CREATED FOR THE AHRI 210-240/2017
M
RATING METHOD, USED FOR THE LAST 70YRS.)
OTC is the PREMIUM "Other approved software"
referred to in ICC codes,
and is also the most true to ACCA Manual S guidelines, PROPERLY and quickly,
wherever ICC code mandates are enforced. These require only to be "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.
UNLIKE SOME OTHERS, OTC MAKE'S NO MOCKERY
OF HIS HARD 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 still on SEER1, and shrinking 2.9% on SEER2,
(and much less opportunity for human error),
it has never been rejected, and is trusted, even by "strict" building officials.
-----------------------------------
DISCLAIMER WARNING ---------------------------
YOU
CAN STILL USE PRIOR VERSIONS OF OTC FOR SEER1. BUT NOT SEER2.
(THE
NEW
mandated 2023 SEER2 AHRI RATINGS!)
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 UNTIL
NOW. With OTC YOU MUST
VERIFY YOUR EQUIPMENT SELECTION
ON THE ARHI WEBSITE, STILL SHOWS RATINGS UNDER
THE STANDARD 210-240 2007 M COLUMN (GREEN CIRCLE), AS SHOWN BELOW, OR THE M1
(RED CIRCLE) UNDER
THE "DESIGNATED" TESTED TYPES.
DO NOT USE ANY DATA FROM
SEER2 210-240 2023 (M1)
COLUMNS, (see AHRI directory screenshot below)
WITH ANY Off-the-Charts PRODUCT PRIOR TO 24.41! RESULTS WILL NOT BE COMPLIANT TO ACCA/AHRI/DOE
GUIDELINES, AND THE INSTALLING CONTRACTOR ALWAYS BEARS THE LIABILITY ON THIS.
KR SERVICES, dba KR-SERVICES-COM LLC, and it's vested owners or users would be
held-harmless in such situations.
THE GOOD NEWS
IS, REGARDLESS WHETHER OR NOT THIS NEW RATING STAYS WITH US, NOW YOU HAVE THE ABILITY TO USE OTC
FOR IT!
Use this link
to AHRI directory for verifications.
------------------------------------------------------
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
TOOL.
For pity's sake, why is our industry stuck on
stupid? Everyone just does their own thing with this, even with the fancy $$ load-calc software.
EVEN THE NEW "ONLINE" EQUIPMENT CALCULATORS
OFTEN DON'T MATCH THEIR OWN PRINTED DATA! TRY IT.
We hear you ask:
1. Why would I ever need "Manual S"?
ICC code dictates it. The
majority of States enforce 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 barely
give a clue on real 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 THIS FIRST,
YOU CAN FACT-CHECK THAT!
NO ONE ELSE HAD A CHART-LESS "MANUAL- S" IN THEIR PRODUCT IN 2012, UNTIL THEY SAW
OFF-THE-CHARTS, AND
THEN JUST GAMED THEIR PRODUCT TO KEEP UP.
We find current popular
software is time consuming, over complex to use, missing pieces of ACCA's
guidelines, and NOT compliant to their intent. Some crudely added the feature
recently by R&D (rip-off & duplicate), just to compete with OTC.
**************************************
More frequently Asked Questions
about OTC (Click the star)
**************************************
The 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
**************************************
approved by ACCA Manual S
5/20/24 | 
KR-Services-com LLC
