How is a GS thermostat used in conjunction with equipment operating at 150000 Btu?

A GS thermostat is specifically designed to control the operation of gas equipment, particularly in high-BTU applications such as those operating at 150,000 BTU. When used in this context, the GS thermostat works efficiently by pairing with a bleed type combination gas valve. This combination is critical because the bleed type valve allows for both precise control of gas flow and effective modulation of the burner as per the thermostat's instructions.

The bleed type combination gas valve provides a bleed circuit that results in a more stable operation of the equipment, allowing for greater safety and efficiency. This setup helps maintain the desired temperature settings by regulating gas supply in response to the thermostat’s readings. In high-capacity systems, having this combination ensures that the equipment functions correctly and responds adequately to changes in demand or operational conditions.