The ability to efficiently troubleshoot refrigeration system issues is one of the keys to operating a successful service business. Quickly and accurately determining the cause of a system problem is beneficial to both the equipment owner and the...
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One of the most divisive topics in our industry is red-tagging a gas furnace. There are usually two types of calls where you could find yourself in this situation. The first is during a routine maintenance or service call for existing customers...
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Troubleshooting refrigeration equipment often requires measuring various electrical properties such as voltages, current flows, and resistances. Understanding these basic electrical fundamentals and how they relate to each other can help...
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Repairing refrigeration equipment can be very time-sensitive, especially if a customer has a case full of product that requires cooling. If the necessary repair part isn’t readily available, it could present a major issue for the customer...
Read more✕ Every technician remembers the first time they encountered a ductless mini-split and the panic they felt inside. Not only do these units look unusual, but they behave to some extent differently from traditional split systems. Some...
Read more✕ The fan center’s purpose is to control when the indoor fan turns on. Before the integrated gas control board, the indoor fan on gas and oil furnaces would either turn on at the same times as the heat or with a time-delay relay. Fan centers came...
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Troubleshooting refrigeration systems can be a very tricky and frustrating job; however, sometimes our frustration is self-inflicted. While working on a system, we may assume that similar systems have the same design, when in fact, they do not...
Read more✕ At a latest assembly of the Worldwide Floor Supply Warmth Pump Affiliation (IGSPHA), Enertech enterprise growth supervisor Rob Derksen shared suggestions for a way HVAC contractors can turn into higher at selling geothermal warmth pump...
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A standard metering machine used on new walk-in cooler/freezers at this time is the digital growth valve (EEV). It permits for a tighter management of a refrigerant’s superheat worth leaving the evaporator and a faster response to modifications...
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“Every time a system is opened for service, it’s at all times a good suggestion to switch the liquid line drier.” – Justin Bailey Technical coach Heatcraft Refrigeration Merchandise A liquid line...
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When repairing and sustaining refrigeration tools, it’s a good observe to examine {the electrical} wiring for any apparent points resembling broken wiring or any free connections. That is particularly necessary for older techniques that...
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