What is VRF
VRV Variable Refrigerant Volume systems were invented in Japan in 1982 by Daikin and brought to the United States in 2004. These systems are used worldwide. Daikin VRV (Variable Refrigerant Volume) is their trademarked name, that’s why...
ASHRAE looked at three types of flame-free mechanical joints that are used in refrigeration and air-conditioning systems, which included; Press/crimp fittings, compression fittings, and flare fittings. They also included a brazed joint as a bench mark against the time...
VRF Heat Pump or Heat Recovery (How to choose between a VRF Heat Pump or Heat Recovery System) or Packaged DX
Scroll to the bottom if you prefer to watch the video.
On August 13, 2020, the inventor and manufacturer of the original ZoomLock fittings – RLS, LLC – announced it was ending its relationship with Parker-Hannifin and will no longer supply its fittings to Parker to sell under...
The Mighty Bracketâ„¢ makes installations of wall mounted air conditioners capable of being done by one person safely. No need for someone to hold the wall mounted A/C unit like this guy below, while you make the piping or...
When do you use a VRF Single Port vs Multiport Branch Selector Box?
What’s the difference between a VRF single port branch selector box and multiport box? What does the branch selector box do? Which one requires more piping?
The decision...
Rooftop VRF Fan Coils
The latest in VRF innovation is coming this summer with the introduction of Carriers Rooftop VRF Fan Coils that will replace existing HVAC Rooftop Packaged Units. Instead of replacing the HVAC rooftop packaged unit with another...
VRF System Cost
We know that VRF system cost varies based on many factors which must be considered when budgeting or bidding on a commercial HVAC project. Of course, it’s not the best option to provide a GMP (Guaranteed Maximum...
Refrigerant piping insulation has historically escaped the scrutiny that it has found itself under recently in some jurisdictions. What could possibly be such a big deal with plain old boring refrigerant piping insulation? With energy codes getting stricter during...
Reftekk Integrated Piping Solutions
You may have heard of ZoomLock and LokRing for refrigerant pipe fittings, but have you heard of Reftekk? The Reftekk Bendable Piping Solution is another way to reduce installation labor for Refrigerant...
