Carel pCOe expansion card 24VAC USED

This pre-owned Carel pCOe expansion card is commonly used in Condaria VAR and advanced marine AC systems to extend the main board’s capabilities. It operates on 24VAC or 24VDC power input. Ensure the dip-switch settings match those on the original faulty board; if unknown, refer to the wiring diagram for the serial address. The serial protocol dip-switches are rarely utilized. Indicator lights next to the dip-switches show power (yellow) and data status—red or no lights indicate issues. In some setups, this board only monitors connected components like pump current without controlling the AC unit. Compatible replacements include Dometic 336876, 290336876, and Condaria NGFE 5331000. This is a lightly used item backed by a 30-day warranty. For a brand-new version, see part #20-2003. Contact us with any questions—we’re the experts.