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Home » Topics » HVAC Contracting

HVAC Contracting
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eLearning and Enablement: A Crash Course

Chris Largent
January 8, 2018
eLearning means different things to different people. Sure, it’s a method of education, but more and more we’re starting to see this education taken out of the context of the classroom and utilized in the business arena. In fact, since 2000, the eLearning industry has grown by nearly 900 percent, and over 77 percent of all U.S. companies already use some form of eLearning technology.
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IFS Completes HVAC work on $26 million O’Fallon Justice Center

January 8, 2018
Integrated Facility Services (IFS) installed the energy-efficient HVAC system at the $26 million O’Fallon Justice Center, which opened in December, 2017. The 96,000-square-foot justice center houses the O’Fallon Police Department and Municipal Courts, Missouri. The construction manager was McCarthy Building Companies and the architect was Wilson Estes Police Architects.
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Workplace Resolutions For the New Year

Richard D. Alaniz
December 18, 2017
Too often workplace policies are only considered in the context of some negative workplace action when it is actually occurs, such as a termination or other employment issue. Sometimes it may involve a legal claim by an applicant or employee. Whether our current policies are adequate for dealing with issues in the most regulated area of our economy, today’s workplace, rarely is explored or even considered.
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Btu Buddy 177: Leaking Commercial AC System

Bill Johnson
December 18, 2017
Bob and Tim are on air-conditioning system service call, and the system has a persistent leak. It seems to leak down about once a month and has to be recharged. Several technicians have tried working on the system and cannot seem to find and stop the persistent leaking. Their service order says to says to repair the leak using whatever methods needed to be used. This persistent leak must be stopped.
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kecko

Diagnosing and Finding a Refrigerant Restriction

Podcast studio
Bryan Orr
December 18, 2017
Refrigerant circuit restrictions can be common things like a plugged filter drier or a restricted metering device. They can also be more difficult to diagnose and exotic issues like a kinked liquid line, blocked evaporator feeder tube, or a compressor connected improperly with a discharge line full of solder (I’ve seen it). To start with, let’s talk about the symptoms.
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pizza

PizzaRev Stores Stay Comfortable Using Venstar Sensors and Thermostats

December 18, 2017
Venstar announced that the PizzaRev chain is using Venstar’s Wireless Temperature Sensors and ColorTouch touchscreen thermostats with Venstar’s Skyport™ Cloud Services to keep its stores cool and comfortable despite the use of 900-degree pizza ovens. “Venstar’s Wireless Temperature Sensors and ColorTouch thermostats give us the ability to remotely manage and control energy usage and costs at our stores while keeping our customers comfortable,” said Jonathan Castillo, maintenance manager for PizzaRev.
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inverter

Believe it or Not, Duct Size Matters

Properly selecting, installing, and operating inverter driven systems
Tom Turner
Tom Turner
December 4, 2017
When selecting inverter driven systems, the contracting community tends to ignore sizing issues because the popular belief is: The system will run only as necessary — you can’t oversize. Nothing could be further from the truth.  Proper sizing remains a fundamental in hot, humid climates.  To be sure, inverter systems are here to stay and are valuable at shedding shoulder-month KWh.  While the equipment may have ability to enhance humidity control during a normal run cycle with proper thermostat programming, a contractor will fight a losing battle when sizing is ignored. 
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Job Management: Why the HVAC Industry Should Explore Emerging Digital Possibilities

harris
Richard Harris
December 4, 2017
Disputes occur in all sorts of companies for all sorts of reasons. In the HVAC Industry the dominant disputes stem from the shortage of skilled labor and discrepancies in the payment and invoicing process. However, with the Internet, advanced software means that the days spent chasing invoices and job details and trying to get ahold of remote workers are beginning to change - though faster in some parts of the world than others.
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The Commons at Imperial Hotel

December 4, 2017
The city of Atlanta embarked on transforming the abandoned Imperial Hotel, now called “The Commons at Imperial Hotel,” which is listed on the National Register of Historic Places, into subsidized residential housing, designed specifically for residents with special needs and supportive service requirements. After a thorough review process, Conditioned Air Systems (CAS) was awarded the contract to help deliver energy savings and efficient heating and cooling options throughout this multi-pronged project.
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jonson

A Follow Up On A Gas Furnace That’s Sitting Dead

Jim Johnson
December 4, 2017
This month’s troubleshooting situation involves an up-flow gas furnace that serves as both the heating source in the winter and as the air handler in a split system for cooling in summer. The condensing unit is on a pad next to the building on a concrete slab. Since there is no crawl space or basement, the connecting tubing and wiring for the condensing unit are routed through an underground chase from the equipment room to the outside.
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July 22, 2026

Designing VRF Systems Using A2L Refrigerant

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