A method of controlling refrigerant pressure during elevated ambient temperature conditions in a refrigeration unit having a refrigerant compressor driven by a prime mover, and controllable suction line modulation. The method includes the steps of detecting the actual load PML on the prime mover, sensing...http://www.google.ca/patents/US5572879?utm_source=gb-gplus-sharePatent US5572879 - Methods of operating a refrigeration unit in predetermined high and low ambient temperatures
