System Sensor InnovairFlex 2 Sensor to 1 Power Board Capability

InnovairFlex 2 Sensors to 1 Power Board Capability Smoke Detector 2 1 Capability 4 wire duct smoke detector has the ability to power two sensors one power board With its 2 1 sensor to power board capability the board of the D4120 may be used to monitor a second D4S sensor This is perfect for applications where monitoring both supply return are required applications where space is at premium try the fully distributed option with separate power board D4P120 and up to two sensors D4S Mount the board D4P120 remotely in a convenient and accessible location and the sensor components where needed to monitor air moving through HVAC system required remote monitoring can be accomplished with the RTS2 or remote test accessory which has the capability of monitoring separate sensors tied back to one power board Sensor to Power Board Configuration The D4120 duct smoke detector or D4P120 power board only is capable of a second housed sensor The additional sensor model D4S can wired to the power board per the following Connect wires to the four wire terminals in the corner of the D4S sensor designated as Tamper Y Y R and Route wires through the openings in the sensor housing and D4120 power board housing Connect the opposing ends of the wires to the terminal connections 2 on the Power board Ensure that wires are to the appropriate terminal locations A No 0 or 1 phillips should be used for terminal connection The tamper are not polarity sensitive Adjust the middle dip switch on the power board to indicate 2 sensors The D4S can only be used with InnovairFlex models and is not with previously sold detectors Where RTS2 or RTS2 AOS is required the wiring configuration is as follows If polarity of Acc and Acc reversed an Amber LED on sensor 2 the duct smoke detector power board exist indicating a trouble condition It is recommended that 18 awg or greater be used and limit wire runs to 25 or less per interconnecting wire 7 13