2.16.1 Heat/Cool Controller

 

This example shows a standard (non FM) 808 series heat/cool temperature controller where the heater control uses a SSR, triggered by a logic output on OP1, and the cooling control uses the relay, OP4.

 

 

 

* Safety requirements for permanently connected equipment state:

 

• A switch or circuit breaker shall be included in the building installation

• It shall be in close proximity to the equipment and within easy reach of the operator

• It shall be marked as the disconnecting device for the equipment

 

☻ A single switch or circuit breaker can drive more than one instrument