Material Dryer Limit SwitchThe integration of a duct high limit control switch  in monitoring the temperature of a material grain dryer brings a multitude of benefits, primarily centered around efficiency, safety, and cost-effectiveness.

The primary function of the duct high limit control switch is to act as a safeguard against potential issues related to temperature within the grain dryer. By strategically placing these switches at multiple points along the dryer’s air stream, the system becomes adept at monitoring the temperature consistently. This is crucial in the context of grain dryers, where maintaining optimal temperature levels is vital for the drying process. To purchase, click here.

One key feature of the duct limit control is its ability to respond to air flow blockage. In the event of a rapid increase in temperature beyond the pre-set threshold, the control switch will automatically shut down the system. This serves as a proactive measure to prevent overheating, which not only ensures the longevity of the equipment but also mitigates the risk of fires. The manual reset feature adds an additional layer of safety by preventing the system from being restarted until the blockage is cleared, ensuring that the issue is addressed before resuming operations.

Fixed Duct Limit ControlsThe significance of this technology becomes clear when considering the potential consequences of not having such a system in place. Loss of energy due to inefficient operation, downtime caused by equipment failures, and the risk of fires starting within the grain dryer are all significant concerns that can incur substantial financial losses. By investing in a Firestat duct high limit switch, these risks are substantially mitigated.

Additionally, the cost-effectiveness of this solution cannot be overstated. The upfront investment in a reliable duct high limit control switch is minimal compared to the potential losses incurred from equipment failures, energy inefficiency, and fire-related damages. In essence, it acts as an insurance policy, protecting not just the equipment but also the overall productivity and financial well-being of the operation.

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CEMCO Duct Limit Switches

The Firestat Duct Fan and Limit Thermostat Switches operate using the same physics to ensure HVAC safety. A helix bi-metal element senses a rapid temperature change. When the temperature changes the bi-metal expands and triggers a snap action switch and either opens or closes a circuit. These switches are commonly installed in air ducts designed to shut down heating, air conditioning and ventilation equipment in apartment complexes and other multiple dwelling units when air temperature exceeds the set point.

UL & cUL Approved
Made in the U.S.A.