VRF Ventilation
The building requirement for ventilation air and the methods of delivering this air vary by geographic location. We’ll discuss several methods commonly found in various region of the United States. Indoor air quality (IAQ) is important for occupant...
ZoomLock Value Calculator Review
The ZoomLock Value Calculator provides a quick way to analyze the cost difference between doing a project with brazed joints versus the ZoomLock press-fit connection method. In this article we will do a ZoomLock Value Calculator...
The following Refrigerant Recovery Machines are listed in alphabetical order.
Appion G1 Review
Appion G1 Review
Appion G1 Features
• The Appion G1 is...
Active vs Passive Refrigerant Recovery
The active removal of refrigerant from a system using Refrigerant Recovery Machines makes the process much easier than using passive methods. The removal of refrigerant from a system that is being repaired or replaced is...
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...
If you are looking for Mechanical Construction Estimating Software, the choices are many.
I have personally been involved in overseeing an estimating group of 20 plus estimators and can tell you there was no way we could have bid the...
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 be recovered in liquid, we have created the following chart....
Daikin now has available a Dual Fuel, 3-phase variable refrigerant flow system. Daikin made it adaptable to the North American market with its ability to integrate with the ubiquitous gas furnace. For heating Daikin gives you the...
VRF Cost per Ton or Cost per Ft2 to Install?
How do you determine the cost per ton or cost per square foot for the installation of a VRF system?
What factors play a role in the VRF cost per ton...
How to Estimate VRF Projects
HVAC Estimating is the foundation upon which all construction company profits are built. If you don’t get the estimates correct, your company won’t be in business very long. If you don’t understand your cost and...
