HVAC Contracting - Articles - Page 270

QCoefficient Uses EnergyPlus to Reduce Willis Tower Energy Bills

A look at model predictive control (MPC) in action

July 18, 2016

The traditional, and still dominant, uses of energy modeling are all associated with building design, such as HVAC system selection and sizing and code compliance. But energy modeling has impactful post-occupancy uses as well.

Regulations, Executive Orders, and Court Rulings - Part 1

What employers need to know now

Richard D. Alaniz

July 18, 2016

Election years often bring a flurry of legislative and regulatory activity. This first of a two-part series will describe some key changes in federal regulations that may make it harder, more costly, and less efficient for employers to run their organizations.

Chinese Cooling Expansion Continues as Midea Buys Stake in Clivet

Clivet to become European center of excellence for widened a/c product range for Midea

Andrew Gaved

July 18, 2016

Chinese a/c manufacturer Midea has become the latest to target Europe, by taking an 80 percent stake in Italian firm Clivet. The current shareholders of Clivet, the Bellò family, will retain a 20 percent stake.

VRF Meets Challenges of Historical Courthouse Restoration

Structure restored to original 1896 appearance without sacrificing need for modern comfort

July 18, 2016

Renovating the building's large, ornate courtroom was a major challenge. The new HVAC system had to be inconspicuous and extremely quiet to avoid interfering with courtroom proceedings.

Partial diagram of heat pump electrical system

Troubleshooting Challenge: A Heat Pump That’s Not Providing Cool Air

Jim Johnson

July 4, 2016

The equipment in this troubleshooting situation is a package unit heat pump and the customer’s complaint is that the unit is “blowing warm air.” When you respond to this service call, you confirm that the indoor temperature is near 90°F, and you also find that the customer has turned the equipment off while awaiting your arrival.

New Refrigeration Motor Cuts Supermarket Energy Usage

DOE verified demos show energy savings of up to 80%

July 4, 2016

Through a the U.S. Department of Energy (DOE) Small Business Innovation Research (SBIR) grant, Kansas City, Missouri-based QM Power recently commercialized a high-efficiency motor for commercial refrigerators that has the potential to transform the market.

Developing a Marketing Plan

Some tips from the U.S. Small Business Administration (SBA)

July 4, 2016

Marketing takes time, money, and lots of preparation. One of the best ways to prepare yourself is to develop a solid marketing plan. A strong marketing plan will ensure you’re not only sticking to your schedule, but that you’re spending your marketing funds wisely and appropriately.

Aircell System Claims 50% Energy Savings for Open Refrigerated Cases

Adande publishes research that it says proves significant energy benefit and temperature control

Andrew Gaved

July 4, 2016

Refrigeration company Adande has published independent evidence that its patented Aircell air flow management system, designed for open-front multi-decks, delivers 50 percent energy savings compared with conventional open refrigerated cases.

Hillsboro School District Partners with Ameresco for Efficiency Upgrades

District embraces energy saving initiatives to upgrade learning environment

July 4, 2016

Ameresco Inc. and the Hillsboro School District announced that they have begun work on a nearly $3.5 million energy savings performance contract (ESPC) to improve 13 schools and increase their operational efficiency.

Btu Buddy 159: Heat Pump Air Distribution Problem

Bill Johnson

June 20, 2016

Bob and Tim were on their last service call for the day. It was an apartment house with a heat pump and the weather was warm during the day and cool at night. The tenant had just moved into this apartment and was trying to get the air conditioning to operate to her satisfaction and she said it was too breezy.