The option allows container-shipping lines to reduce the energy required for refrigeration by up to 65 percent, while cutting down on emissions related to power generation, the company said. Carrier Transicold offers a line of equipment for refrigerated trucks, trailers and containers. Quest II draws on scientific formulas to selectively manage refrigeration system component operation to conserve energy. It allows air-temperature variations without compromising the pulp temperatures of product in transit. The Quest II mode can be installed on new or existing Carrier Transicold refrigeration units equipped with ML3 and ML2i controls.