HMI Hoyme ADP – 0MV2 – S5A
Interlocking Relay Adaptor: for Combustion Fresh Air Inlet Damper HOM – 24Vac; connects to 250mVdc to 100Vdc – 2 wire safety control system. Damper proves to be open before furnace fires, comes with 2 Relays, printed Circuit & Test/Run switch. Also ideal for commercial use.
Installation Instructions – Printer friendly (pdf)