Testo® 435-2 Set-Up and Applications Tutorial Courtesy of Rat Shak™ Productions and HVACPROTech.com® « Digital Zeus™ HVAC Tool & Instruments Journal

Testo® 435-2 Set-Up and Applications Tutorial Courtesy of Rat Shak™ Productions and HVACPROTech.com®

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Wayne Sirley Heat Pump Guru
- Diagnosing R-410A Systems November 30, 2009
  Well heat pump fans, here it is. An up close and personal look at a 410A heat pump system in action. Normal operation vs fault condition numbers in the cool cycle. There’s no audio with the vid, but for those of you who know their way around a system, the captions should be sufficient to [...]
  wayneshirley
- Ultrasonic Leak Detectors…Amended Comments July 16, 2009
  A while back, I did a post on my thoughts as to leak detectors and leak detection methods, in which I stated having had no personal success with the ultrasonic instruments. I have since, discovered some definite value in their application to locating leaks in some situations. The first situation was a leak in a [...]
  wayneshirley
- Refrigerants vs Refrigeration April 14, 2009
  I continue to get the occasional question, worded something like, “..Hey, do them videos tell ya’ how to charge 410A systems?” And I go into an explanation about the DVD’s covering a review of refrigeration principles with R-22 and providing some discussion relative to 410A…or sometimes I just direct them here and suggest they m […]
  wayneshirley
- Air Flow and Duct Design April 8, 2009
  Airflow across the indoor coil on residential heat pumps, or straight cooling systems, is always a topic of interest for the more astute members in HVAC technical circles…and rightly so. Proper airflow, or more accurately the lack thereof, may well be the HVAC industry’s most cited culprit for substandard equipment performance and [...]
  wayneshirley
- Troubleshooting: How Stuff Works…and Breaks March 5, 2009
  So, maybe you’re thinking troubleshooting heat pumps is about Ohm’s Law, psychrometric charts, Mollier diagrams, sensible heat ratios, COP’s and…etc., etc…? There are a lot of scientific principles explaining how heat pumps do what they do. And at some point in our training we eventually have to deal with some of the science in understanding [... […]
  wayneshirley
Digi-Cool® Direct
- Demonstration September 20, 2008
  Animated Demonstration Standard Pulldown This simulation shows a standard pulldown in an R-22 system. The digital reading is set to update once per second, so you can track the pressure when it changes rapidly. Notice how the bar graph clears to zero when the digits change. You can see that the overall trend is downwards in this [...]
  Curtis
- 1250 Conversion Kit Review September 11, 2008
  Please post your comments about the new 1250 Conversion Kit.
  Curtis
- TV-1140 Review September 10, 2008
  Please comment on the new TV-1140 Temperature Sensors.
  Curtis
- TB-1140 Review September 10, 2008
  Please comment on the new TB-1140 temperature sensors.
  Curtis
- TS-1140 Review September 10, 2008
  Please comment on the new TS-1140 temperature sensors.
  Curtis
- TB-1120 Review September 10, 2008
  Please comment on the new TB-1120 temperature sensor.
  Curtis
- TS-1120 Review September 10, 2008
  Please comment on the new TS-1120 temperature sensor.
  Curtis
- TV-1110 Review September 10, 2008
  Let us know what you think of this Temperature Sensor.
  Curtis
- 1250 Conversion Kit July 25, 2008
  1250 Conversion Kit. Now Available!!! This kit converts the DRSA 1200 to a DRSA1250 with Backlight display. The kit also includes the TV-1140 temperature sensors. You can also use the TS-1140 and TB-1140 temperature sensors with this new upgrade kit. You can purchase this upgrade kit in our online store.
  Curtis
- TV-1140 Dual Velcro Wrap July 25, 2008
  TV-1140 Dual Velcro Wrap These Dual Bar Clamp Temperature Sensors come standard with your DRSA 1250. You can get replacements at the online store.
  Curtis
TRUTech Guy RSS Feed
- HVAC State Watch – Rules and Regs for contractors November 24, 2009
  HVAC StateWatch from ACCA “Each state has different rules and regulations regarding HVACR licensing and business operations. While we can’t keep track of everything that happens in all 50 states, we have compiled some basic information and links to point you in the right direction to operate a proper contracting business in each state.” htt […]
  trutechguy
- Blower Door Comparison November 20, 2009
  Side by side comparison of the Retrotec and Minneapolis blower doors. Blower Door Comparison Guide
  trutechguy
- testo combustion analysis video November 20, 2009
  
  trutechguy
- TruTech Tools – Our success is your success September 1, 2009
  TruTech Tools, LTD was founded on the belief that better tools and better training make for better technicians. Our motto: “A true sign of a true technician is the quality of their tools and his or her ability to use them. “ At TruTech Tools, it is our mission to insure that you not only own [...]
  trutechguy
- Fluke Announces New Weatherization Grant Program August 19, 2009
  Instructors invited to apply for donations of Thermal Imaging Cameras EVERETT, Wash. – Fluke Corporation, the world’s leading supplier of handheld test and measurement equipment, is donating $100,000 worth of infrared thermal imagers to schools and training programs for use in teaching students to perform weatherization work and home inspections. Through the […]
  trutechguy