Introducing one of the most advanced tools EVER to hit the HVACR market:
The Service Assistant by Field Diagnostic Systems Inc.
The true power of the Service Assistant by Field Diagnostic Services is readily apparent when you review the reports that are possible.
UPDATED: 12-14-12
Hap Haven just delivered an OUTSTANDING webinar on the topic of An Introduction to Home Performance for Heating Contractors.
You can watch a recording HERE or download a copy of the slides here-> INTRO TO HP – HVAC.
Fasten your seatbelts and take this fast-paced ride into the newest billion dollar industry. Home Performance is uniquely suited for the heating & AC contractor. That’s because you have already mastered many of the most important components. Come learn how Home Performance and HVAC overlap, how to expand your business in a flat market and how to position yourself for the future.
As part of this webinar you will:
1) See a brief history of Home Performance and whole house thinking
2) Understand how an Energy Audit leads to more sales
3) Get an overview of the cool tools used in the industry
4) Learn how to talk to a heater
FOR more webinars by TruTech Tools, LTD go to http://www.TruTechTools.com/webinars
Bill Spohn from TruTech Tools will be demonstrating what’s new in the world of HVACR tools and test instruments.
Also presenting will be representatives from Ritchie/Yellow Jacket, Hilti Tools, and United Rentals.
And meet the “Student of the Month” from Triangle Tech!
Mark your calendar and be sure to join us!
Peter’s Place
1199 Washington Pike, Bridgeville, PA 15017
(Exit 55 off I79N or I79S)
3:00 pm – Board Meeting
5:30 – 6:00 pm – Social Hour (cash bar)
6:00 pm – 7:00 pm – Guest Speakers
7:00 pm – Social Hour restarts (cash bar)
7:00 pm Dinner – $40.00 (cash, check, credit card)
Dinner Selection: Prime Rib or Virginia Spots
RSVP: 724-779-1860 (phone or fax) – NO cancellations after October 2
SEE ACCA W-PA October 2012 meeting notice FOR SIGN UP FORM AND MORE DETAILS.
What Contractors and Energy Raters need to know about better AC System performance.Make Better Air, Cheaper
Filed under A/C and Heat Pump Products, Airflow, Training, Uncategorized
As you probably know, making a good airflow measurement can be one of the toughest tasks you will face. TruTechTools has found that the testo 417, large vane anemometer, offers a best in class solution to measurement of airflow at supplies and returns. You can learn more about the product HERE or see our Video of how to use it HERE. And while it is a relatively easy device to use, we have found that many people need a little coaching to get the most out of it. So, based upon our hundreds of hours training on airflow we offer 6 easy steps on how to use the testo 417, below. **************************************************************
1) Determine the OPEN AREA as follows: On RETURNS, the OPEN AREA is the 100% of the full measured area of the grille, as the air is flowing first through the 417 measuring vanes, then into the return duct. On SUPPLIES, the OPEN AREA is the fraction or percentage of the grille that the air passes through, before moving through the 417 measuring vanes. See grille manufacturers product info for open area data **. Then Multiply the Duct dimensions (Height and width) in inches by multiply of the OPEN AREA factor. FOR EXAMPLE: We have a supply grille that is 6×10 inches with 65% open area. The open area is 6 x 10 x 0.65 = 39 sq inches open area
2) ENTER the OPEN AREA into the 417. Turn ON the 417, after a few seconds the display comes up. PRESS AND HOLD the RETURN ARROW (Hold/Max/Min Key) until a number appears on the display and the in2 label is blinking. Use the UP or DOWN arrows (VOL and MEAN keys) to adjust the number in the display your open area. IN THE EXAMPLE ABOVE adjust it to 39.0
3) EXIT to measuring mode by pressing the RETURN ARROW (Hold/Max/Min Key) 5 times
4) MEASURE: Place the 4″ vane into the air stream in front of the grille position it at one corner of the grille, perpendicular to the grille surface.
a) Press the MEAN key TWICE to enter the timed average mode.
b) Press the RETURN key (Hold/Max/Min Key) when you want to start collecting data.
c) Keep the 417′s measuring head about 1″ away from the face of the grille. Move the 417 head across the grille at a rate of about 1 foot (12″) over 4 seconds. (note the timer on the 417′s screen)
d) Be sure to “paint” the entire grille face with head of the 417 to account for total flow through the grille. DO NOT paint any area more than once!
e) When you are done covering the entire grille area, press the RETURN key (Hold/Max/Min Key) again to pause the reading on the display.
OPTIONAL: You can measure again (re-paint the entire area) to improve the reading. Just start at step 4b.
5) DISPLAY the average values by pressing the MEAN key. The Timed MEAN icon will flash and the average Feet Per Minute (FPM) will be displayed. Tap the VOL key once to see the Average CFM for this test. Tap the VOL key again to see the Average Temperature for this test. Tapping the VOL key continues rotating thru these three results. NOTE: BE SURE to record the data, as there is NO memory storage in the 417. Once you tap the MEAN key again, the data is gone.
6) CLEAR the data and prepare for another measurement by tapping the MEAN key ** One manufacturer’s data books give open area factors of from 71% to 75% for one type of floor diffuser (depending on size), 66% to 75% for another model and 65% to 75% for another model. While a heavy duty, dual shutter floor grille from the same manufacturer has a range of 48% to 52% open area factor. Generally speaking, the larger the grille dimension, the small the open area factor.
Filed under A/C and Heat Pump Products, Airflow, Training
