Control has the combined function of a time/temperature defrost control, defrost relay, anti-short cycle timed off control, high and low pressure switch system control, manufacturing test mode and field connection terminal strip.
Inputs will include thermostat commands, defrost thermostat and pressure controls. Control has feature to turn off compressor for 30 seconds at beginning and end of defrost cycle.
Integral features include:
- On board defrost relays (fan, reversing valve, auxiliary heat)
- Anti-short cycle timed-off control with compressor contactor driver
- Field connection 24-volt Class 2 screw terminal strip
- Factory terminals arrangement
- LED diagnostic indicators
- Manufacturing test mode
- High and low pressure switch monitoring with 5-strike lockout
- Field selectable frost accumulation timing
- Field selectable compressor delay (remove jumper to disable)