Greenheck Fan WD Series User's Manual
Contents
1. Part Number 452723 Field Installation Instructions These instructions apply to the field Instructions installation of end switch kits on Greenheck model WD Backdraft Dampers These end 1 Position end switch such that the back side of damper blade trips switch kits can be used in conjunction the spring rod with MP 100 MP 200 and MP 300 Series actuators 2 Mount end switch bracket to damper frame or ductwork using 10 x in self drilling sheet metal screws End switches are typically wired to a fan and or to a light serving as an open not open indicator When the damper is powered open one of the damper blades makes contact with Damper Frame the spring rod of the end switch which in turn makes a connection allowing power to flow to A the fan and or light This set up would be used Damper when it is desirable to ensure that the damper Tie Bar f i is fully open before the fan starts y in 14 NPSM Part Qty Description Pt 1 endswitch mounting bracket 2 End switch UL CSA Rating L67 15 Amps 125 250 or 480 VAC 0 25 Amps 250 VDC 0 50 Amps 125 VDC Lee Spring Rod Damper 6 32NC x 1 in machine screws with Blade nuts packaged in end switch housing End Switch Installation On 2 10 x in self drilling sheet metal sereia WD 100 Series Dampers E Damper Frame Damper Blade Damper Tie Bar Spring Rod 0 2 in 14 NPSM Damper Ac2. tuator Note Some actuators are multi tap use correct connections per actuator wiring diagram Wiring Illustration End Switch Installation On WD 200 amp 300 Series Dampers SIGREENHECK P O Box 410 Schofield WI 54476 0410 715 359 6171 greenheck com Copyright 2008 Greenheck Fan Corporation 452723 End Switch Rev 3 Aug 2008
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