LATEST ARTICLES

VRF Central Controller

VRF System Controller

Find comparison on VRF System Central Controllers for all major manufactures. Daikin, Carrier, Toshiba, Panasonic, Mitsubishi, Trane, York, LG, Fujitsu, Lennox, The following...
Engineering Videovideo

Engineering Videos

How to Calculate Cooling Coil Heat Transfer https://youtu.be/0G0RkWHY1Jg How to Calculate COP & KW per Ton
VRF Project Cost Tracking

VRF Project Cost Tracker

How Much does a VRF System Cost per Ton ($/Ton) or per Square Foot ($/Ft2)? How many Ft2/Ton should you figure? How much does the Electrical Cost per Indoor...
ZoomLock Fitting Cost Analysis

ZoomLock Cost Analysis

ZoomLock Cost Analysis Determining if there is value in using a press-fit joint such as ZoomLock™ requires that you look at several factors that impact cost and quality. We covered...
VRF Manufacture Comparison, Daikin, Mitsubishi, LG, Toshiba, Carrier, Trane, Fujitsu, Panasonic, Hitachi

VRF Manufacture Comparison

VRF Manufacture Comparison With so many VRF manufactures to compare, it’s hard to decipher all the variations between systems. Below you'll find a comparison of VRF manufactures such as, Daikin,...
VRF Case Studies

VRF Case Studies USA

VRF Case Studies USA The following links are for VRF case studies USA from various VRF manufactures. Also see the following for links to VRF Project Videos or VRF Case...
VRF Project Videos

VRF Project Videos – USA

VRF Project Videos Below are links to VRF project videos based on building type and VRF system description. Clink on the building name to watch a video about the project. We...
refrigerant recovery machine buyers guide

Refrigerant Recovery Machine Reviews

The following Refrigerant Recovery Machines are listed in alphabetical order. Appion G1 Review Appion G1 Review Appion...
refrigerant recovery machine

Refrigerant Recovery Machines

Refrigerant Recovery Speed Using the 80/20 rule, where we assume that 80% of the refrigerant recovered will be in vapor form and 20% will...
Cool Master Net

CoolAutomation CoolMasterNet – SMART VRF

There is a way to connect your VRF or VRV system into your home or building automation system using the CoolAutomation CoolMasterNet plug and play device. This...
ZoomLock Max vs RLS

RLS vs ZoomLock Max

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...
Reftekk Bend Designer App

Reftekk Bend Designer Mobile App

Reftekk provides labor savings by reducing the amount of fittings required to be brazed. If you are using the braze-free fittings, like ZoomLock, RLS, or SmartLock, you...
SmartLock Fitting

SmartLock Fitting

SmartLock Fitting Review There is another ACR fitting available that eliminates brazing in refrigerant systems called the SmartLock fitting. We will review the SmartLock...