VRF Refrigerant Piping Thermal Expansion
VRF Piping Hangers and Expansion Loops
When hanging or fastening VRF copper refrigerant piping that involves long runs, then some form of considerations needs to be made for expansion due...
Estimate VRF Projects
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...
DOAS Energy Recovery
DOAS - Energy Recovery
When is an Energy Recovery system required according to ASHRAE 90.1 (2013)?
ASHRAE 90.1 2013
(Energy Standards for Buildings, Except Low Rise Residential Buildings)
When using a VRF Dedicated...
VRF Ventilation
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...
What is VRF
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...
Panasonic Whisper Comfort ERV
https://youtu.be/Yn4Eq3ijBl0
Panasonic FV-04VE1 Whisper Comfort