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The medium temperature charge prevents valve hunting and maintains stability under varied operating envelopes
Always match the rotation to your unit’s motor specifications to avoid pushing air in the wrong direction
this genuine ProTech component ensures proper spark gap alignment and flame rectification
High Voltage Threshold: Rated for 440V
Tjernlund Products 950-1040 Relay 318172-701 The medium temperature charge preventsThe Tjernlund 950 1040 Relay is a specialized 24VAC VAC relay designed for demanding HVACR control circuits. As a field proven power venter relay kit, this component is essential for technicians servicing Tjernlund HSUL series, HS 3, HS 4, and GPAK units. It facilitates critical interlocking between the appliance and draft inducer, ensuring the 24V control circuit can effectively trigger 115V motorized loads. When used as a replacement relay or an