Industrial refrigeration units wiring diagram. The efm evaporator fan motor must run all the time so that the box temperature stays uniform and the thermostat senses the average box temperature not some pocket of stratified air. However often only one type is included. Wiring diagrams tend to be more pictorial and. It is very helpful when manufacturers include both types with their equipment.
They look like the rungs in a ladder hence the name ladder schematic. Focus on industrial refrigeration this guide focuses solely on industrial refrigeration systems which we define in the following broad terms. 100 tons or larger refrigerant. A wiring diagram on the other hand shows the physical wiring layout as in where wires are connected and allows a mechanic to trace specific circuits.
Both types are a great aid to the mechanic who is diagnosing equipment. Tgm 69r tgm 72rs model. This type of wiring diagram has branch runs all shown as parallel circuits going from the left line l1 to the neutral line n.