Copeland Comfort Control (Alco) 099008 Control 30067439-890 Utilizing a high-quality furnace pressure

Utilizing a high-quality furnace pressure sensor like the 51W90 prevents common HVAC 6 red flashes or pressure switch lockout codes often caused by diaphragm failure or restricted venting

Common Questions What is the minimum current required to trip the relay

it is recommended to install the valve with the stem in a horizontal position to protect the actuator from heat and to ensure longevity of the brass seat

The 86K78 is the direct replacement for 86K7801 and 81F05

This specific spring range dictates the pressure required to move the actuator

Copeland Comfort Control (Alco) 099008 Control 30067439-890 Utilizing a high-quality furnace pressureThe Copeland Comfort Control (Alco) 099008 (Model PS2 Y7A) is a high performance dual pressure control designed for precise regulation of HVACR compressor cycles. This control features a low pressure range of 9"Hg to 102 psig with an adjustable differential of 15 to 73 psig, ensuring optimal suction side management. The high pressure side operates between 87 and 464 psig with a fixed differential, providing critical system protection. Engineered for