ICP sequences of operation

3 sequences for ICP equipment: what the unit does, step by step, with the timings. Pick the equipment type, then the mode.

Heat pump (3)

Heating

• Heat pump: heating cycle with supplemental heat
  N4H3

Cooling

• Heat pump: cooling cycle
  N4H3

Defrost

• Heat pump: defrost board interval and defrost timers
  N4H3

For licensed technicians. Gas, electrical and refrigerant work must be done by a qualified, licensed person. Shut off power and gas before servicing, never bypass a safety control, and follow the manufacturer’s manual for the exact model; it and local codes always take priority. HVACopedia is not affiliated with any manufacturer; brand and model names only identify the equipment.