Which part does the D24677 replace

This MiniIgnition control features a 4-second Trial for Ignition (TFI) and a 15-second pre-purge cycle to exhaust residual gases from the combustion chamber

but is also suitable for R-502

providing versatility for various site power configurations

This number determines the voltage

Carrier 30RA502134 MBB Board Els PW 29614 Which part does the D24677The 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