Cooling Output Cycles Per Hour "CPH" is used to “modulate” On/Off outputs controlling equipment such as compressors. When the Room Temperature is within the Proportional Band, the output performs 3 or 4 CPH. A higher CPH represents a higher accuracy of control at the expense of wearing mechanical components faster.
The CPH can value 3 or 4. you cannot set a higher value than 4 to cooling CHP. This is to protect the compressors from burning out due to cycling on and off. Even 4 cycles per hour are not recommended for some units.

Released for:Schneider Electric South Africa