The downswing in single-family housing deepened in April while a bump up for the month in the volatile multifamily market lifted total housing starts 8.2 percent to a seasonally adjusted annual rate of 1.032 million units, according to figures released by the Commerce Department. Total starts were down 30.6 percent from a year earlier.
Air-cooling evaporators used in ammonia systems have traditionally been made using galvanized (zinc-coated) carbon steel. There are other metals that are compatible with ammonia, including stainless steel and aluminum. Aluminum, in fact, can provide several benefits.
A leaking chiller forced an automotive manufacturing plant’s HVACR engineer to decide between a costly production shutdown or using a can of refrigeration system sealant to eliminate the leak. Deciding on the sealant quickly put a lid on the engine factory’s repair fees.
Fixing “issues” and “conflicts” on computers can add up to tens of thousands of dollars lost to decreased productivity or service/repairs. Here are seven simple tips everyone could adhere to - businesses and individual computer users alike - that will keep your computers (and wallets) in tip-top shape.
Air duct leakage should be a concern to both the designer and the
building owner because of its potential impact on initial construction costs,
energy usage, and system performance. No matter the size, the total benefit of the
duct system is based and measured on the peak fan efficiency for that system.
The dispatcher calls Bob about servicing an old oil furnace. The customer is old and is adamant that he doesn’t want a new furnace, so Bob does not try to get
him to upgrade to a new model. He tells the customer that he will see that he
gets the most out of the old furnace that he can.
On-the-job injuries can be stressful for
everyone who was involved or witnessed an accident. But no matter how upsetting
or time-consuming the situation, employers must remember to fill out the
paperwork afterwards for the Occupational Safety and Health Administration
(OSHA).
The six basic steps of brazing are highlighted: good fit and proper clearance; cleaning the metals; fluxing the parts; assemble for brazing; brazing the assembly; and cleaning the brazed joint.
Air conditioning system commissioning and startup is the process of inspecting a new air conditioning installation, and verifying that the new system is running properly and efficiently. This article describes the commissioning procedure.
While workers’ compensation managed care is widely viewed as a means of controlling expenses, the results are sometimes quite different from what is expected. In fact, in many cases the consequences are not only unintended but also undesirable and costly to employers.
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