Cno nc, Jd-2 installation information, Air connections – A.J. Antunes & Co JD-2O 801111315 User Manual
Page 2: Air supply, Hole for 7/8” conduit connection

A. J. ANTUNES & CO. www.ajantunes.com 180 Kehoe Blvd., Carol Stream, Illinois 60188
JD-2 Installation Information
1-630-784-1000 Fax: 630-784-1651
Page 2 of 4
P/N 1011082 06/10
1-800-253-2991
Air Connections
Tubing recommended as minimums: 1/4” copper or alu-
minum tubing, or 1/8” pipe. All tubing and pipe must be
clean and free from oil, dirt, and chips. If piping runs over
five feet long, use a larger size tubing or pipe, and reduce
size at switch.
Air Supply
The switch is equipped with two 1/8” NPT connection
ports. Connect air supply as shown below. When used for
vacuum or pressure applications, the JD-2 must always
be vented as shown. No venting is required for differential
applications.
Differential Inlet Connection
Vacuum Only Inlet Connection
Terminal Connections
Conduit Connection
Pressure Only Inlet Connection
IN
W.C.
4
3
2
1
.5
.1
ING
Low Vacuum or
Low Pressure
High Vacuum or
High Pressure
IN
W.C.
4
3
2
1
.5
.1
ING
Vacuum Connection
top chamber
Vent Leave
Open
IN
W.C.
4
3
2
1
.5
.1
ING
Pressure Connection
Bottom Chamber
Vent Leave
Open
Indicator Position
Terminal
Off
C and NO open
C and NC closed
On
C and NO closed
C and NC open
C
NO
NC
Hole for 7/8” Conduit Connection