John Song, PE
John Song is a mechanical engineer and project manager at McGuire Engineers with 10 years of experience in the HVAC industry.
Applied versus packaged rooftop units — does it matter?
The line between applied and packaged rooftop units is sometimes blurred, and ultimately the needs of the project will dictate whether applied or packaged should be recommended and specified based on the wide array of available options
Case study: Theater HVAC issues resolved
A theater’s rooftop units were replaced to aid in dehumidification
Case study: Theater renovation includes VRF
A Chicago college theater renovation opted for heat recovery variable refrigerant flow systems as part of its heating and cooling plan.
Don’t forget the codes
ASHRAE Standards 15 and 34 must be consulted when designing with variable refrigerant flow systems.
Choosing and specifying VRF systems
In your client’s quest for energy efficiency, determining if a variable refrigerant flow system is right requires careful consideration.