Johnson Controls Temperature Stage Module
The S350 Stage Module is used in conjunction with the A350, A350E, A350P, and A350R series temperature controls to add multiple stage capability. The S350 module has an SPDT output relay and three adjustments including offset (de-energize stage action from setpoint), heating or cooling mode, and differential. Using a Y350R, up to nine S350s can be added to the A350, A350E, and A350R via the 5-pin, plug-in connector. Using a Y350R wth an A350P, up to four S350s can be added. Using a 40 VA or greater external transformer wth an A350P, up to nine S350s can be added.