The Main to Reserve Switch is used with systems that incorporate main and reserve (backup)agent storage. The switch may utilize 1 or 2 Form C Contact blocks which will provide an electrical path to either the Main or Reserve agent release modules. Following a system discharge, reset any field devices. Once all devices are in a stand-by status, the Main-Reserve Switch may be moved to the Reserve position. The Control Panel may then be reset to a normal mode for uninterrupted LIFECO protection