Ep switch
24 Vdc / 24 Vac / 120 Vac
Application & 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.
input signal: 24 Vdc
Assembly
(specify) 24 Vac
1
120 Vac
6
3
2
4
7
5
8
item Qty. part # Description
Kit #
1
2
3
-
1
1
1
1
1
1
1
2
1
1
-
-
Valve 1⁄8" NPT
Retaining Clip
9
452460 S/V 120 Vac
380913 S/V 24 Vac
812441
812442
812443
-
381042 S/V 24 Vdc
4
5
6
7
8
651371 Mounting Bracket
380850 2 x 4 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)
9
1
454850 Label
Kit #s include appropriate voltage solenoid valve shown
under Item 3 and all other Item #s above.
typical setup
Port 3
Exhaust
Solenoid Valve With RRL
TOR/RRL
Wiring
Har dware
ASCO Solenoid
Valve Assembly
Solenoid Valve
Red
RRL
Orange
Red
Black
Port 1
Port 2
Supply
To Actuator
Solenoid Valve With TOR
Solenoid Valve
TOR
Brown
Orange
Black
Blue
Red
Red
Red
Purple
Yellow
Red
Red
Copyright © 2007 Greenheck Fan Corporation
EP Switch Rev. 3 May 2007
Download from Www.Somanuals.com. All Manuals Search And Download.
|