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MS4PMUHVT Multi-Stage Electronic Temperature Control with Relay Pack Description The MS4PMUHVT Control is intended for multi- stage temperature control applications. This microprocessor based control offers innovative features and state-of-the-art technology to improve all your staged temperature control applications. Refer to the MS4PMUHVT Multi-Stage Electronic Temperature Control with Relay Pack Product Bulletin (LIT-125195) for important product application information. Features • Four enclosed, line voltage relays provide direct control of motor loads without additional relays • 120/240 VAC power supply eliminates need for separate transformers • One control provides single-sensor multi-stage control or dual-sensor reset control, which reduces need for warehouse or truck to stock multiple controls for similar applications • Accepts A99 sensor signal, which is suitable for a wide range of applications • Surface Mounted Design (SMD) technology assures high quality, reliable components in a compact package • Keypad lock deters accidental changes to parameter settings • Listed for use on refrigeration equipment in accordance with Canadian and U.S. National standards Applications This control is specifically designed for the control of four-stage applications in the following configurations: • Four cooling stages with common setpoint • Four heating stages with common setpoint • Four stages with deadband (two heating stages and two cooling stages with common setpoint) • Two independent sets of two dependent stages (two heating stages and two cooling stages with independent setpoints) Selection chart Table 125: MS4PMUHV Multi-Stage Electronic Temperature Control with Relay Pack Product Code Number Description MS4PMUHVT-11C Multi-Stage Electronic Temperature Control with Relay Pack and One Temperature Sensor 103