Filter-driers play a pivotal role in the operation of air conditioning and refrigeration systems. As important as the filter-drier is, many actually do not understand how it works. Here are some details.
In this installment of the series, Bob stops at a diner for lunch and has something on his mind. He has been to school where all of the terms of pressure and vacuum have been discussed, but he does not have a firm grasp on the terms. He wants to better understand the evacuation of a system.
Global positioning system (GPS) applications are growing in use because they allow continuous tracking of mobile workers to help improve scheduling and dispatching. A California contractor is now applying a new GPS service that is helping the company locate and manage employees at minimum expense through the use of cell phones.
When I've been called in by building owners and managers and asked to price a maintenance agreement, they then ask, "Can you also include the EMS (energy management system) in your price?" I look at the system, and often the answer is no.
This article addresses the two major abatement procedures for mold control: Moisture removal and microbial remediation. The first deals with denying fungi the moisture needed for growth; the second is the response to cleaning and removing mold from affected buildings.
HVACR service personnel always need to think safety first when working on equipment. The information in this article is intended to provide an overview to assist in the safe service and maintenance of systems.
Failed negotiation strategies do more than prevent you from getting what you want. They also detract from your credibility and your knowledge base of the person or company you’re negotiating with. If you want to leave your next negotiation session with more favorable results, put the tips in this article to work.
Installing dehumidification systems for natatoriums can be a niche market for contractors, but the applications can be complex. Many contractors who specialize in these applications are realizing the benefit of applying packaged units for these installations.
Many school buildings sit dormant in the summer, with no HVAC system running. In these situations, it is possible for mold and bacteria to form on books, carpet, and drapes. The use of dehumidification can help prevent potential Sick Building Syndrome problems.
Solenoid valves are highly engineered products that can be used in many diverse and unique system applications. Here is a brief overview of the components and functional varieties of solenoid valves.