Copeland 985-0109-00 Probe Refrigerant the probe (stem) length is

the probe (stem) length is exactly 2 inches

or internal valve set replacement to ensure a fresh mechanical seal

utilizing this HVAC ignitor replacement ensures electrical compatibility with the furnace control board’s voltage output

ensure the switch is mounted securely to a flat surface using the integrated mounting holes to prevent mechanical interference with the diaphragm

monitoring the micro-amp signal generated when the probe is engulfed in the burner flame

Copeland 985-0109-00 Probe Refrigerant the probe (stem) length isThe Copeland 985 0109 00 is a specialized thermistor probe engineered for the Copeland Demand Cooling system, primarily used in low temperature refrigeration applications using R 22, R 407A, R 407F, or R 448A 449A. This discharge temperature sensor monitors high side heat directly at the source, signaling the injection valve to provide liquid refrigerant cooling when temperatures exceed safe operating limits. Proper installation of this replacement