Weil McLain 389-900-221 Control Panel R-410A and D4CG series

and D4CG series

ensuring a secure and efficient connection to HVACR refrigeration systems

The set point is field-adjustable by turning the adjustment screw located under the removable cover

How do I verify the charge code

What connections are used on this 9-ton unit

Weil McLain 389-900-221 Control Panel R-410A and D4CG seriesThe 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