Weil McLain 389-900-221 Control Panel R-22 Advanced Diagnostics: Features a high-visibility

Advanced Diagnostics: Features a high-visibility LED that flashes specific fault codes

Standard IC extraction tools and anti-static procedures are required to prevent damage to the chip during control board integration

UDAS175-225

Does the 1-2 PSI spring require a specific mounting position

while integrated reverse wiring protection safeguards the electronics during commissioning

Weil McLain 389-900-221 Control Panel R-22 Advanced Diagnostics: Features a high-visibilityThe Weil McLain 389 900 221 BCP 8W is a high performance multiple boiler control panel engineered for hydronic applications requiring precision staging. For technicians managing multi unit configurations, this hydronic heating controller manages up to 8 stages out of the box, with the ability to expand to 24 stages using extension modules. By incorporating outdoor reset control, the BCP 8W automatically adjusts the system set point based on ambient