Question 220Refrigeration/AC - Assistant Engineer70% to pass
A box solenoid valve used in a multi-box refrigeration system is operated by electromagnetic action by what control device?
AI Explanation
The correct answer is A) box temperature actuated thermostat.
A box solenoid valve in a multi-box refrigeration system is operated by a box temperature actuated thermostat. The thermostat senses the temperature inside the refrigerated box and opens or closes the solenoid valve to control the flow of refrigerant and maintain the desired temperature.
The other options are incorrect because a discharge pressure actuated pressure switch, a suction pressure actuated pressure switch, and an evaporator outlet temperature actuated thermostat are not the control devices that operate the box solenoid valve. These devices may be used for other purposes in the refrigeration system, but they do not directly control the box solenoid valve.
Related Questions
#218 What is the purpose of the low-pressure cut-out switch as used as a primary controller for a refrigeration system or unit? #219 The thermostat controlling the operation of the solenoid valve to a refrigerated box evaporator senses what temperature? #221 Which of the listed operations will cause an automatically controlled refrigeration compressor to restart if the system features a pump down cycle? #222 In a refrigeration system featuring low-side pump down prior to the automatic shut down of the compressor, the temperature of the refrigerated space is controlled by the action of a thermostat wired to what device? #223 Which of the following electrically operated refrigeration system valves would be most appropriate for use as a 2 position diverting hot gas bypass solenoid valve? Illustration GS-RA-19