Greenheck Fan EP Switch User's Manual
Contents
1. GREENHECK EP SWITCH 24 Vdc 24 Vac 120 Vac Application amp Design An electro pneumatic EP switch also known as a three way solenoid valve is used to electrically open and close a pneumatic actuated damper It is wired in series with a normally closed thermostat when used with a fire smoke damper FSD to initiate closure at elevated temperatures The EP switch can also be used on a smoke damper SMD to initiate closure when required in a smoke control system Assem bly Input Signal 24 Vdc specify 24 Vac 120 Vac Valve e NPT Retaining Clip 452460 S V 120 Vac 812441 380913 S V 24 Vac 812442 381042 S V 24 Vdc 812443 651371 Mounting Bracket 380850 2 x4 x 1 875 Ext Box 415555 10 x 0 50 TEK Screw 380257 2 x 4 Blank Cover 415539 10 32 HH Grounding Screw green 454850 Label Kit s include appropriate voltage solenoid valve shown under Item 3 and all other Item s above p e l m i i i Exhaust TOR RRL Solenoid Valve With RRL ASCO Solenoid Wiring Solenoid Valve RRL Valve Assembly Har dware Red i Orange Red I Black Port 1 o a To Actuator f I l I Solenoid Valve With TOR Solenoid Valve ji l l l l l l Y Y N Sp Red Red A GREENHECK PO Box 410 Schofield WI 54476 0410 715 359 6171 greenheck com Copyright 2007 Gree2. nheck Fan Corporation EP Switch Rev 3 May 2007
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