Residential HVAC
Having issues with refrigerant readings…
Having issues with refrigerant readings… Installed a Guardian RC318 (1.5 ton condenser, R454B) with a new Guardian 40,000BTU furnace and new evaporator coil. Evap came with factory installed…
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General discussion
I've got a question for the commercial refrigeration experts about a walk in freezer.
I've got a question for the commercial refrigeration experts about a walk in freezer. I primarily work on HVAC but now I'm in a job that requires HVAC and some refrigeration. I thought I cou…
General discussion
This is a new T-shirt idea that I have for the HVAC school store. What do you think?
General discussion
Tony Gonzalez from Fieldpiece and I are going live tonight, Wednesday, September 9, at 7 p.m. Eastern /…
Tony Gonzalez from Fieldpiece and I are going live tonight, Wednesday, September 9, at 7 p.m. Eastern / 4 p.m. Pacific. We're talking about Building a Business That Lasts: Why Culture Beats…
General discussion
I do mainly technical support and make heavy use of artificial intelligence. Google Gemini Notebook is mind-blowing in…
I do mainly technical support and make heavy use of artificial intelligence. Google Gemini Notebook is mind-blowing in how it helps. For example, I load service manuals, installation manuals…
Residential HVAC
Getting complaints from teachers about humidity and unable to reach thermostat set point. Brand new units installed by…
Getting complaints from teachers about humidity and unable to reach thermostat set point. Brand new units installed by outside contractor. Lennox EL19KPV-060 condenser Lennox CBK45UHVT -060…
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Residential HVAC
Everyday HVAC diagnosis, service, installation, and repair in homes.
Building performance & science
Building performance, high-performance HVAC, and building science together: airflow, design, ducts, moisture, envelopes, and commissioning.
Light commercial HVAC
Rooftop units, split systems, ventilation, maintenance, and diagnosis in light commercial buildings.
Food service & convenience store refrigeration
Refrigeration for convenience stores, restaurants, and other food service: walk-ins, reach-ins, ice machines, and the work around them.
Grocery refrigeration
Supermarket cases, racks, refrigeration systems, and the conditions behind reliable operation.
Controls
Sequences, sensors, wiring, controls, and system integration across HVACR applications.
VRF & VRV
Variable refrigerant flow and variable refrigerant volume systems: installation, piping, controls, commissioning, service, and diagnosis.
Chillers & industrial systems
Chillers, ammonia, large central plants, industrial refrigeration, and other large systems.
Business & leadership
Leading crews, mentoring, hiring, customer communication, running a trade business, and building a team people want to stay on.
Hall of Fame / Hall of Shame
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General discussion
Talk shop. Field photos, tools, lessons, symposium conversations, and questions that cross trades.
Stay curious, not judgmental.
Technicians, contractors, consultants, specialists, and instructors. Residential HVAC, building performance and science, light commercial HVAC, food service and grocery refrigeration, and controls. You don’t need a perfect question to belong here.
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