We all know that refrigerant leaks cost money! The hissing sound of a leak is not so much SSSSSSSSSSSSSSS as it is $$$$$$$$$$$$$$$$! Let’s find and fix the refrigerant leaks in our systems. The first step is detection – we have to find the leak. For those of you that utilize ammonia as your refrigerant […]
REFRIGERANT LEAK DETECTION Read More »
This article will target refrigeration systems that utilize air cooled condensers, but the efficiencies to be gained apply to the users of evaporative condensers as well. First, let us remember a couple of important principles of refrigeration; 1) heat (energy) always flows from higher to lower temperatures, and 2) the function of the condenser is
CLEAN & EFFICIENT CONDENSERS Read More »
You are receiving this notice because you are the owner / operator of a refrigeration or air-conditioning system that utilizes R-22 refrigerant and we want you to understand, and be prepared for, the rapidly rising cost of this refrigerant. BACKGROUND: The United States is bound by an international environmental agreement, called the Montreal Protocols that
THE FUTURE OF R-22 Read More »
How often and for how long should an air unit evaporator in a cooler or freezer be defrosted? Hot gas and electric defrosting of air units that are installed in walk-in coolers, freezers, and warehouse complexes involves a lot of expense. If the unit is not defrosted often enough, there is the wasted energy of
DEFROSTING AIR UNIT EVAPORATORS Read More »
Check your oil safety switches! Many commercial refrigeration compressors (i.e. Copeland) and essentially all industrial reciprocating compressors, like Vilter 450, 440 & 350 series, have force fed lubrication systems. The oil that is in the crankcase is pumped to various journals and bearings to lubricate these internal parts. The oil pump is located at the
OIL SAFETY SWITCHES Read More »
The typical ammonia (and other refrigerants) leak detection system consist of one or more sensors communicating to a readout or display. Internal in the sensor is a “cell” that picks up the ammonia in the environment and provides the initial signal to the sensor electronics and ultimately to the readout device. This cell has a
REFRIGERANT LEAK DETECTORS Read More »