Refrigeration/Air Conditioning
Refrigerant gas leak detection is high on the agenda for many companies, not just the dedicated refrigeration contractors. Most manufacturing, retail, and storage industries have some form of refrigeration equipment on site and larger offices and public buildings utilise air conditioning. Under the current F-gas regulations is the responsibility of the site operators to ensure their equipment is running efficiently and free from leaks. In addition a leak free fully charged refrigeration system operates more efficiently, both making cost savings and being more environmentally friendly. At TQ Environmental we have refrigeration monitoring systems for all types of refrigeration equipment. Freon, CO2, CO2 Dual gas or Ammonia.
For conventional refrigeration systems using HCFC's or HFC's the TQ 4200 is a dedicated, Freon monitoring system, with proven Infra-red technology.
For high pressure CO2 or Cascade Condensing systems using CO2 and Freon's the TQ 4300 offers Single or Dual gas Infra-red monitoring, with individual zone alarm capability.
For small or large scale Ammonia systems the TQ 8000 control panels and 122 sensors offer both low (ppm) level and Hi (LEL) level detection.
Also for large scale Ammonia installations our Infra-red based sampling systems also offer both low (ppm) level and Hi (LEL) level detection.
Types of Refrigerant Gases
A number of different types of refrigerant gases are used in industrial and domestic refrigeration plants. These gasses have been allocated "R" numbers and are the most frequently and conveniently used method of typing these gases. Refrigerant gases are often referred to as Freons. Freon is the trade name for 2 types of gases namely chlorofluorocarbons (CFC) and hydrochlorofluorocarbonns (HCFH). A typical example of each of these is trichlorofluoromethane, R11 (CFC) and difluorochloromethane, R22 (HCFC).
Both of these types of refrigerants are being phased out because of the ozone depleting properties of chemicals containing chlorine. Their replacements are hydrofluorocarbons (HFC) such as 1,1,1,2-tetrafluoroethane, R134a. Many of the replacement HFC's are blends of chemicals for example R404a.
Other refrigerant gases are ammonia, R717, carbon dioxide, R744 and very flammable gases such as ethylene, R1150 and n-butane, R600.
