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Lacquer sheets stacked — description and returns below the cascade board.
non-critical pressure drops
Always verify the part number against the unit's technical manual to ensure the resistance curve matches the controller requirements
the PCBBF124S is the official direct cross-reference and upgraded replacement for the PCBBF121 and PCBBF121S models
it is calibrated with a 150°F fixed open temperature to interrupt the burner circuit during an over-temperature condition and a 110°F fixed close temperature for an auto reset function once the heat exchanger cools to safe operating levels
It is specifically compatible with Johnson Controls JT Series valves and Erie VT series bodies
Johnson Controls HL-69158NP-0 Temperature Sensor Freon non-critical pressure dropsThe Johnson Controls HL 69158NP 0 is a high precision multi function humidity and temperature sensor, serving as the direct replacement for HL 67N5 8N00P. This duct probe sensor is engineered for versatile field applications, functioning as a high limit or proportional override controller, a stand alone proportional controller, or a two position controller. By integrating a 1K ohm nickel RTD thin film element, it provides reliable temperature data
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