With ongoing refrigeration system problems, and no replacement parts available for its old Beacon systems, the McDonald’s owner in Godfrey, Ill., looked to the ingenuity of its service company, R.E.C. Service Corp., for a solution.
The Air-Conditioning, Heating and Refrigeration Technology Institute (AHRTI) has completed a research project on performance standards for walk-in refrigerator and freezer systems.
One of the basic components selected when installing a walk-in cooler/freezer or any field-assembled refrigeration system is the metering device, typically the thermostatic expansion valve (TXV). The TXV needs to be selected to match the Btu capacity of the system’s evaporator and compressor.
Perlick Corp., a maker of undercounter refrigeration, announced it has extended its residential products warranty to three years. The warranty is applicable to products built after Feb. 1. The warranty covers all parts and labor to repair or replace any part of the product, for three years from the date of the original purchase.
Ammonia is both a friend to refrigeration contractors and a danger, too. When used properly in refrigeration units, its outstanding heat transfer capabilities can keep food cold for long periods of time, it does not harm the environment, and it is biodegradable. But exposure to ammonia does pose a danger to human health.
A well-designed medium temperature refrigeration system will maintain both a proper case temperature and relative humidity (rh). The preservation of food depends not only on the temperature, but also on the relative humidity within a case.
The International Institute of Ammonia Refrigeration will hold its 2012 Industrial Refrigeration Conference & Exhibition, March 17-21 at the Frontier Airlines Center in Milwaukee.
It did not take long for the HVACR industry to respond to reports from overseas about rogue refrigerants used in hundreds of transport HFC-134a refrigeration systems, which allegedly were responsible for a number of explosions and at least three deaths.
Members of the Hatfield Township community place a high value on locally sourced and organic foods and environmental stewardship. As such, planning for the town’s new ShopRite supermarket included making sustainability a priority from product offerings to construction of the store itself — including the choice of refrigeration systems and display cases.
Uses of so-called natural refrigerants such as HCs, CO2, and ammonia are being advocated as ways to positively deal with issues of climate change, greenhouse effect, and global warming. That was the primary perspective of an extended report from Eurammon, a joint European initiative of companies, institutions, and individuals who advocate an increased use of natural refrigerants.