Description
The Reznor 121275 Blocked Vent Switch is a genuine OEM safety component for commercial and industrial Reznor HVAC heating systems. Also known as a stack flue block or blocked vent switch, this vital part helps detect restricted vent airflow and prevents unsafe operating conditions by interrupting the system if temperatures climb excessively due to a blocked flue.
Key Features
- OEM Quality Component – Manufactured by Reznor to match original equipment specifications for dependable performance and fit.
- Blocked Vent Detection – Senses blocked flue conditions and opens at 275°F to help safeguard against overheating and poor airflow.
- Manual Reset Safety – Manual reset design allows qualified technicians to reset the switch after correcting vent issues.
- Durable Construction – Built for use in demanding commercial HVAC environments.
- Easy Replacement – Direct replacement part that simplifies repairs and reduces system downtime.
