Why its important to purge ACR piping in a VRF system
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 outside air. We will cover...
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
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 is a look at Touch Screen VRF Central Controllers that are available...
How do you increase individual control without adding additional indoor units? Daikin has a Zoning Kit that allows you to increase the amount of zones that are controlled by their own thermostat while using the same indoor...
Engineering Videovideo

Engineering Videos

How to Calculate Cooling Coil Heat Transfer https://youtu.be/0G0RkWHY1Jg How to Calculate COP & KW per Ton https://youtu.be/Xfxt0gdJDpw How to Calculate COP & KW per...
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...
Tenant Submetering How do you bill tenants for their share of the use of a piece of air conditioning equipment that is shared amongst more than one tenant in your building? If you have a VRF Air Conditioning system, where...
VRF Piping Layout

VRF Piping Layout

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 / VRV manufactures require that you use their proprietary software to design the refrigeration piping for the installation of their VRF systems. You or your engineer will need to have a cooling and heating load to import or...
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