Magnet Test on NH-200 Series Heat Detectors

DATE: February 5, 2019 Document: TB19-02-01 NOTIFIER has identified a potential issue with the NH-200, NH-200H, NH-200R, NH-200-IV, NH-200H-IV and NH-200R-IV heat detectors manufactured between July 2018 through November 2018. Date code range 8071 through 8114. When these models are used in conjunction with either the FireWarden NFW2-100, NFW2-100C, NFW2-100E or NFW2-100R fire alarm control panels (FACP), the FACP may falsely indicate a magnet test failure when being tested with a magnet.

See PDF below for the complete text and images.