Air Products & Controls MSR-50RK/R 04/02 and an accompanying outdoor backbox

and an accompanying outdoor backbox

a 449 or 4-inch square by 2-1/8" deep box must be used

which operate as a SPDT switch

and page 8 for special installation instructions for room instruments with three air terminal connections

It provides passcode‐protected access to system functions allowing installation in areas open to the general public

Air Products & Controls MSR-50RK/R 04/02 and an accompanying outdoor backboxThe MSR 50R Series remote accessories are designed for use with Air Products and Controls duct smoke detectors to provide the range of functionality required by your local commercial application. The MSR 50R Series comes in two models of the controller: the MSR 50RM which provides a hidden magnet test switch and a pushbutton reset; the MSR50RK provides a key operated detector test and reset function. Both versions of the MSR 50R accessory are