Which temperature sensors on an SR3 Single Temp controller must be graded sensors?

In the context of the SR3 Single Temp controller, temperature sensors play a crucial role in accurately monitoring and managing the temperature within a system. Graded sensors, which are designed for higher accuracy and reliability, are necessary for specific applications where precise measurements are critical.

The return air sensor is responsible for measuring the temperature of the air returning from the refrigerated space, providing essential data on how well the system is performing. This measurement is vital for determining whether the system is adequately cooling the space. Similarly, the discharge air sensor measures the air temperature exiting the cooling unit. It is essential for ensuring that the air being circulated meets the required temperature specifications for effective refrigeration.

Because both the return air and discharge air sensors impact the efficiency and performance of the cooling system significantly, using graded sensors for these applications is essential. These graded sensors ensure that the measurements are accurate enough to maintain the desired temperature settings and to enable the controller to respond effectively to any fluctuations.

The other options do not consist of both sensors that require the same level of precision in their measurements as the return and discharge air sensors do. For instance, while ambient sensors might be important, they do not require the same level of grading as the sensors that directly impact the cooling output. Therefore, options that do