SECTION THREE (THERMOSTATS) -Non-relay thermostat 3.20 -Relay thermostat 3.21 -Change-over calibration board 3.22 -Calibration procedure 3.23 to 3.26 -sample of thermostat air use an leak impact on compressor 3.27 PUPOSE OF SECTION: Present understanding of range and types of thermostats and required calibration equipment.
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