Description TARGETED FOR USE IN TANDAM WITH SIEMENS RLU222 CONTROLLER CONFIGURED AS STAIRWELL PRESSURISATION CONTROL. THIS MODULE ALLOWS 2 X STAIRWELL SENSOR SIGNAL SELECTION OF UPTO 4 SENSORS EACH (per stairwell), PLUS CONTROL OF COMMON RELIEF FAN BASED ON AVERAGE OR HIGHEST SIGNAL FROM  BOTH STAIRWELL DAN CONTROL OUTPUTS- BUT WITH THE RELIEF FAN SPEED OUTPUT TRIMMABLE FOR MIN/MAX , START & GAIN CONTROL  FOR FINE SYSTEM TUNING,  ALL IN ONE HANDY LOCATION LEAVING THE FAN VSD’s WITH BASIC DEFAULT SETTINGS FOR QUICK & EASY COMMISSIONING. 2 OFF 4 INPUT SIGNAL SELECTORS WITH LOWEST, AVERAGE OR HIGHEST OUTPUTS AVAILABLE  (1 FOR EACH STAIRWELL). 1 OFF 2 INPUT SIGNAL SELECTOR. OUTPUT SELECTABLE AS HIGHEST OR AVERAGE OUTPUT IS TRIMABLE & SCALEABLE  (INTENDED FOR RELIEF FAN CONTROL) WITH LED BAR LEVEL OUTPUT INDICATION. VIEW PDF SCM220     Post Views: 3,035