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Use a 1/16-inch rod or nail inserted into the stem hole (if provided) or a 9/16-inch wrench on the hex flats to secure the stem while tightening the button
and gas-fired combustion systems
This piston-type actuator features a 2-inch stroke and a standard 3 to 12 psig spring range
Using the 971-0090-47 ensures the trip points match the specific amperage range of your equipment
Lennox 78L19 Expansion Valve 30067439-890 Use a 1/16-inch rod orProper refrigerant metering is the backbone of any reliable HVACR system, and the Lennox 78L19 Expansion Valve is a critical component for maintaining precise superheat. Designed for high performance residential and light commercial equipment, this Thermostatic Expansion Valve (TXV) is chemically compatible with both R 410A and R 22 systems. The 78L19, which is identical to 78L1901, features a durable brass body with threaded connections, making it a
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