Variable Refrigerant Flow (VRF) Air Conditioning is a fast growing segment of the US market. Are you ready to profit from this market growth? Everything you need to get ready for this expansion of the VRF Air Conditioning market can be found here.
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Is Your Heater making you Sick
Is your building too dry inside, thereby providing life sustaining low humidity levels for the Coronavirus or other viruses to live?
Researchers at Yale identify low Relative Humidity as a...
Why Purge ACR Piping with Nitrogen when Brazing
Why its important to purge ACR piping in a VRF system
Ventilation and VRF Sensible Heat Ratio
Ventilation for VRF Systems
Ventilation (outside air) can create havoc on occupant comfort if your VRF system isn’t sized or capable of handling the latent (moisture) content of the...
How to Calculate Cooling Coil Heat Transfer
This formula will show you how to calculate the total heat transfer from a cooling coil. The calculation for this is as follows;
BTUH(t) = CFM x 4.5 x...
HVAC Estimating Spreadsheet
Having an HVAC VRF Estimating Spreadsheet that automates portions of your estimates saves you valuable time that you could use to make more sales. All aspects of the cost of furnishing and installing a VRF or...
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LATEST ARTICLES
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 Videos
How to Calculate Cooling Coil Heat Transfer
https://youtu.be/0G0RkWHY1Jg
How to Calculate COP & KW per Ton
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 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
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 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 – 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...
Is Your Heater making you Sick
Is your building too dry inside, thereby providing life sustaining low humidity levels for the Coronavirus or other viruses to live?
Researchers at Yale identify...
Why Purge ACR Piping with Nitrogen when Brazing
Why its important to purge ACR piping in a VRF system
Ventilation and VRF Sensible Heat Ratio
Ventilation for VRF Systems
Ventilation (outside air) can create havoc on occupant comfort if your VRF system isn’t sized or capable of handling the...
How to Calculate Cooling Coil Heat Transfer
This formula will show you how to calculate the total heat transfer from a cooling coil. The calculation for this is as follows;
BTUH(t)...
HVAC Estimating Spreadsheet
Having an HVAC VRF Estimating Spreadsheet that automates portions of your estimates saves you valuable time that you could use to make more sales. All aspects of the cost of furnishing...
