Description
The Copeland Comfort Control 770-1 air pressure switch is designed to monitor and verify proper airflow in HVAC systems. This SPDT (single-pole double-throw) switch operates within a pressure range of 0.7 to 1.2 inches water column (WC), making it suitable for use in furnaces and air handling equipment where airflow proving is required for safe operation. It ensures that burners or system components only operate when adequate airflow is present, helping prevent unsafe conditions. Built for reliability and consistent switching performance, this air switch is a dependable replacement for HVAC service and maintenance applications.
Key Features
- Air pressure switch with 0.7–1.2" WC operating range
- SPDT (single-pole double-throw) contact configuration
- Designed to verify airflow in HVAC systems
- Suitable for furnaces and air handling equipment
- Supports safe system operation by proving airflow
- Reliable switching performance under varying conditions
- Durable construction for long-term use






