Rooftop Unit Repair or Replacement? Start with Ventilation
Cooley Mechanical · Commercial HVAC guide Rooftop Unit Repair or Replacement? Start with Ventilation An older commercial rooftop unit does not need replacement solely because of its age. The useful question is whether the existing RTU can safely and reliably perform the heating, cooling, airflow, and ventilation functions the building now needs—and whether the repair […]
Economizer Inspection, Testing & Repair: What to Expect
Cooley Mechanical · Commercial HVAC guide Economizer Inspection, Testing & Repair: What to Expect An economizer inspection should answer a practical question: can the rooftop unit’s outside-air components move through the intended sequence, and what prevents them from doing so when they cannot? The answer may involve a damper, actuator, linkage, sensor, control, wiring, intake […]
How Much Fresh Air Does a Commercial Building Need?
Cooley Mechanical · Commercial HVAC guide How Much Fresh Air Does a Commercial Building Need? There is no single fresh-air number for every commercial building. The outdoor airflow depends on the use of each space, its occupiable floor area, expected population, the applicable people and area rates, air-distribution effectiveness, and the type of ventilation system […]
What Does an Economizer Do on a Rooftop Unit?
Cooley Mechanical · Commercial HVAC guide What Does an Economizer Do on a Rooftop Unit? An air-side economizer lets a commercial rooftop unit use suitable outdoor air for cooling. Its controls coordinate outside-air and return-air dampers, normally opening the outdoor-air path farther when conditions can reduce the amount of compressor cooling needed. Honeywell’s economizer overview […]
Commercial HVAC Requirements Before Building Occupancy
Cooley Mechanical · Commercial HVAC guide Commercial HVAC Requirements Before Building Occupancy If an inspector says the economizer or fresh-air system must work before a business can occupy a building, treat that as a specific ventilation and project-closeout problem—not simply an air-conditioning repair. The fastest useful response is to get the correction in writing, identify […]
HVAC Warranties Explained: Parts, Labor & Unit Replacement Coverage
HVAC Warranties Explained: Parts, Labor & Unit Replacement Coverage A good HVAC warranty helps Michigan homeowners understand what protection may be available if a furnace, air conditioner, or full comfort system has a covered issue. The details can vary by brand, model, installation, registration, and documentation, so this HVAC warranty guide for Michigan homeowners: parts […]
AC Installation in Macomb County, MI | Cooley Mechanical
AC Installation in Macomb County, MI | Cooley Mechanical When the summer heat hits Michigan, homeowners and businesses across Macomb County count on Cooley Mechanical for professional AC installation and reliable cooling solutions. Whether you’re upgrading to a high-efficiency system, replacing an outdated unit, or adding central air installation for the first time, our family-owned […]
AirEase HVAC Guide for Southeast Michigan Homes
AirEase HVAC Guide for Southeast Michigan Homes For homeowners in Washington Township, Macomb County, Oakland County, and nearby Southeast Michigan areas, HVAC replacement is not just a box swap. You need a system that can handle muggy July days, cold January nights, spring and fall swings, basements, older ducts, and high utility bills. AirEase residential […]
Your Air Conditioner Says 14.3 SEER2—So How Is the Complete System Rated at 16 SEER2?
Your Air Conditioner Says 14.3 SEER2—So How Is the Complete System Rated at 16 SEER2? An outdoor condenser label can tell only part of the efficiency story. In this educational case study, Cooley Mechanical looks at an AHRI-certified 16 SEER2 Airease equipment combination case study (AHRI Reference #215589360) to show how a system with an […]
Have Boiler Heat but No Central Air? Hydronic Heat Pumps Are Changing the Game in Michigan
Have Boiler Heat but No Central Air? Hydronic Heat Pumps Are Changing the Game in Michigan If you live in Southeast Michigan and your home is heated by a boiler—hydronic baseboards, cast iron radiators, or radiant floors—but you don’t have ductwork or central air conditioning, you’ve probably been told you have only two choices: keep […]