Honeywell Pneumatic Thermostat - TP971C2009/U

The Honeywell Pneumatic Thermostat is a high-capacity, pilot-operated controller from the reliable and durable TP970 series. It is designed for direct-acting heating applications and offers adjustable set points for both day and night, ranging from 59 to 90 degrees Fahrenheit during the day and 50 to 80 degrees Fahrenheit at night. One of the key features is the inclusion of an adapter plate in the thermostat kits which effectively covers any existing thermostat watermark, simplifying the installation process.

In addition, the thermostat's back plate features molded air connections, eliminating the need for separate fittings and further facilitating easy setup. This model also boasts a universal locking cover for enhanced security, complemented by an elegant satin chrome finish. Customers can choose among horizontal, vertical, or blank window options to best suit their preferences and needs.

A noteworthy characteristic of this series is the three-pipe thermostat design, especially beneficial for unit ventilator applications. This unique structure enables the outdoor damper to operate effectively when the thermostat is manually set to day operation, optimizing airflow and energy efficiency.