Figure 115 typifies a portable refrigerant recovery unit now in use within the refrigeration industry. The compressor is an open reciprocating type, driven by a…
Category: Commissioning of refrigerating systems
It is a well known fact that an engineer required to work on an ammonia system will be very careful not to allow undue discharges…
Chlorofluorocarbons (CFCs) are chemical compounds which have been developed for use as refrigerants. Their molecular structure is based on either methane or ethane; one or…
When the system has been fully charged and the controls set, the equipment is operated at average evaporating conditions. The compressor oil level must then…
When the system has been evacuated, the next step is to carry out a thorough leak test. The system may then be charged with refrigerant.…
It is imperative, with halogen refrigeration systems, that all traces of air, non-condensibles and moisture be removed. If this is not achieved then the presence…
During installation the system should be kept as clean and dry as possible, with the least exposure to air. Avoid the entry of foreign matter…