Siemens Building Technology 357-0003 Thermostat 324846-701 If the vacuum is sufficient

If the vacuum is sufficient but the SPNO switch fails to show continuity across the terminals

ideal for high-static balanced runtime applications and systems with HVAC economizers

as the seating integrity and set pressure can no longer be verified after the seal has broken

System Efficiency: Reduces energy consumption by preventing heated air from escaping through the chimney when the burner is idle

While generic blocks exist

Siemens Building Technology 357-0003 Thermostat 324846-701 If the vacuum is sufficientThe Siemens 357 0003 Powers Limitem is a heavy duty pneumatic thermostat designed for precise temperature regulation in air handling systems and unit ventilators. As a direct acting remote bulb thermostat, this unit provides a proportional pneumatic signal based on liquid filled sensing technology. This model features a 20F to 100F operating range, making it an ideal choice for low limit control or primary discharge air sensing where a 3 8 inch x 4