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ROBERTSHAW UNI-LINE. P/N: N800-555 (MODEL#: 20-064). POSITIVE POSITIONER FOR DAMPER ACTUATOR., NEW STYLE POSITIONER., TOTAL DIMMENSIONS: 2 1/4" LONG X 2 1/4" WIDE X 2" THICK., BLACK COLORED HARD PLASTIC AND METAL., HAS A ADJUSTABLE NEEDLE VALVE, START POINT ADJUSTMENT DIAL WHEEL, #B OUTPUT TO ACTUATOR PORT, #M 20 PSIG MAIN AIR PORT, #S 3-15 PSIG SIGNAL INPUT PORT, response SPRING CONNECTION, BRACKET TO ATTACH TO ACTUATOR., START POINT: THE SIGNAL PRESSURE AT WHICH THE ACTUATOR SHAFT BEGINS TO MOVE IS ADJUSTABLE 3 TO 12 PSIG BY ROTATING THE RECESSED BRASS KNURLED DIAL IN THE CENTER OF POSITIONER., FOR USE WITH 2850 SERIES DAMPER ACTUATOR., INCLUDES: POSITIVE POSITIONER, INSTALLATION INSTRUCTIONS/INFORMATION MANUAL, PACKAGING AND BOX., ORIGINAL OEM REPLACEMENT PART., GUARANTEED TO WORK PERFECTLY., BRAND NEW CONDITION., NEVER USED., I CAN SUPPLY MORE PICTURES IF REQUESTED.
