Carrier 30RA502134 MBB Board Refrigerant The isolated feed valve design

The isolated feed valve design is optimized to minimize lime and scale buildup

A19ABA-49 is identical to A19ABA-46

preventing cold drafts or sluggish cooling at startup

Built with a rugged brass body and synthetic seating material

this unit maintains exceptional long-term calibration stability and resistance to drift

Carrier 30RA502134 MBB Board Refrigerant The isolated feed valve designThe Carrier 30RA502134 MBB Board serves as the primary Main Base Board for Carrier 30RAP AquaSnap air cooled chillers. This microprocessor based controller manages critical refrigeration cycles, including compressor staging, electronic expansion valve (EXV) positioning, and fan speed modulation. To ensure accurate configuration and firmware compatibility, this board requires the specific model and serial number of the unit at the time of order. It