FEBRUARY 2021

CONTENTS

FEATURES

VRF RESTORATION

HVAC contractor installs VRF retrofit to give historical theatre new use.

What HVAC contractors should (and shouldn’t) know about variable refrigerant flow technology.

GETTING STARTED WITH VRF

ON THE COVER
Technician Bryce Taylor installs a filter ina custom plenum. Photo courtesy of HynakAir Conditioning & Refrigeration.

Pumps, exchangers and upgraded equipment.

TOOLBOX

Classified ad directory

AD INDEX

Advertising Partners

HVAC duct cleaner shares heartbreaking photos from last year's summer wildfires

BACKSTORY