Integrated Safety: The certified OPD provides required downstream protection for systems exceeding 2 PSI

you know that makeup air heating requires precision to prevent equipment cycling and ensure consistent discharge temperatures

Common Questions & Troubleshooting How do I test the 1171449 flame sensor

Reliable Flame Sensing: High-performance flame sensing electrode prevents "false positive" or "flame not sensed" error codes

Always confirm oil levels after piping adjustments

ASCO 8221G13 Solenoid Valve 30067439-890 Integrated Safety: The certified OPDThe ASCO 8221G13 Solenoid Valve is a high performance, 2 way normally closed solution engineered specifically for industrial water service and HVACR applications. This pilot operated valve features a unique slow closing mechanism with a built in snubber that effectively reduces the disc closing speed. This advanced design is critical for water hammer prevention, eliminating the need for additional surge suppressors or shock absorbers in most piping