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, Mitsubishi, LG, Carrier, Toshiba (Carrier), Fujitsu, Panasonic, Hitachi (York) and...
What are the difficulties of Installing a VRF system in a Senior Living Facility?
The difficulty with this VRF project is that the existing senior living facility is occupied. There are two buildings in this senior facility, one classified for...
SmartLock Fitting Review
There is another ACR fitting available that eliminates brazing in refrigerant systems called the SmartLock fitting. We will review the SmartLock fitting vs Brazed fittings in this article.
ZoomLock Cost Analysis
Determining if there is value in using a press-fit joint such as ZoomLockâ„¢ requires that you look at several factors that impact cost and quality. We covered the technical aspects of ZoomLockâ„¢ in another article; see ZoomLock...
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 Unit ($/IDU)? Track all of these and MORE with the...
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...
Should you install a VRF Heat Recovery or VRF Heat Pump system for a Residential home or commercial property?
We will discuss three options you have related to air-cooled split systems, not including rooftop...
Manufactures VRF Piping Layout Drawings
The VRF Piping Layout is highly engineered by the VRF manufactures software to design the pipe sizes to meet the capacities and conditions required, including ASHRAE 15. The pipe sizes are affected by capacity, pipe lengths and...
VRF System Control Wiring
This VRF System control wiring is for a VRF VRV Heat Recovery System with single port branch selector boxes. The control wiring is very simple, it’s basically two 18 gauge wires that go from the thermostat...
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...
