The OE370-26-RSMD Refrigerant System Module for Digital Compressors by AAON can monitor and control up to two compressors and condensers. You can configure the compressors in tandem or non-tandem. VCCX2 Controller connected with RSMD Module. A system can connect up to four RSMD modules, depending on their size.
Aaon Ref System Module-Digital Compressors OE370-26-RSMD. Replaces part# V61520