International Comfort Products 1177927 Defrost Board

The International Comfort Products 1177927 Defrost-Board functions as an essential part in heat pump system operations. The circuit board controls the cycle that melts ice from the outdoor coil when the system operates in heating mode. The board tracks temperature and time signals to initiate refrigeration cycle reversal that dissolves ice accumulation. The heat transfer performance remains efficient while heat pump damage is eliminated through this system. The circuit board delivers three main advantages: better heating capacity in low temperatures, higher energy efficiency from ice prevention and longer heat pump durability that results from strain prevention. The board maintains reliable heating performance through precise control of the defrost cycle.