ZoneFirst SPRD-12X8 Damper Els PW 17895 preventing the coil burnout often

preventing the coil burnout often associated with mismatched wattage or improper voltage application in 24V automation circuits

Optimized 120V performance delivers consistent ignition cycles in high-efficiency furnaces

What is the maximum pressure rating for the CD3603/CD3604 series

providing flexibility for different loop lengths and voltage drop requirements

this replacement valve assembly ensures precise flow control and reliable zone isolation

ZoneFirst SPRD-12X8 Damper Els PW 17895 preventing the coil burnout oftenThe ZoneFirst SPRD 12X8 is a professional grade barometric static pressure regulating damper designed to maintain optimal bypass airflow in multi zone HVAC systems. As the direct replacement for the PRD 12X8, this 12" wide by 8" high rectangular unit utilizes a counter balanced weighted arm to automatically bleed off excess static pressure when zone dampers close. This critical function prevents high velocity air noise, protects the heat exchanger