Tjernlund Products 950-1040 Relay 318172-701 it simplifies the service process

it simplifies the service process for HVAC contractors during annual overhauls

Operating at 115V with a maximum speed of 1075 RPM

this genuine ProTech component ensures proper spark gap alignment and flame rectification

Always match the rotation to your unit’s motor specifications to avoid pushing air in the wrong direction

The medium temperature charge prevents valve hunting and maintains stability under varied operating envelopes

Tjernlund Products 950-1040 Relay 318172-701 it simplifies the service processThe 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