A.J. Antunes & Co JD-2O 801111315 User Manual
A. J. ANTUNES & CO. www.ajantunes.com 180 Kehoe Blvd., Carol Stream, Illinois 60188
IN
W.C.
4
3
2
1
.5
.1
.81
3.75
1.59
.72
2.21 .89
4.06
1.88
2.32
.72
4.88
Ø.88
NEGATIVE INLET
POSITIVE INLET
1/8" NPT
1/8" NPT
SCREW CAP.
UNDER PROTECTIVE
ADJUSTING SCREW
ING
JD-2 Installation Information
IMPORTANT
Please read these instructions carefully to assure
correct installation. This equipment must be
installed only by a licensed electrician who is
experienced with combustion safeguard control
systems and understands the functions of interlocking switches, such as gas pressure switches.
Prior to being put into operation in conjunction
with the combustion safeguard systems, all
switches should be tested for proper range setting
and proper wiring. Check piping connections and
switch house for leaks with a soap bubble test. All
exhaust fans and blowers should be inspected and
checked for proper rotation prior to starting up.
JD-2 Switches
You are installing one of the finest switches of its type on
the market. Design of this switch is based on the same
principles of sensitivity, accuracy, and dependability that
have made Antunes Controls Air Flow Switches so successful. These switches are fully approved. They are
UL listed and recognized for the U.S. and Canada, and
approved by FM.
Specifications
Blue Spring: .07” to 1.7” W.C. (2 mm to 43 mm)
Grey Spring: 0.1” to 4” W.C. (3 mm to 102 mm)
Purple Spring: 0.1” to 10” W.C. (3mm to 250 mm)
Red Spring: 0.1” to 24” W.C. (3 mm to 600 mm)
Orange Spring: 5” to 35” W.C. (125 mm to 875 mm)
Electrical: 10 A, 1/8 HP, 125 VAC; 5 A, 1/4 HP, 250 VAC;
Pilot Duty, 125 VA @ 125-250 VAC.
Field wiring by others must be rated at 194°F (90°C) for
industrial use.
Max. Operating Pressure: 35” W.C.
Max. Surge Pressure: 3 PSIG
Max. Ambient Operating Temperature: 140°F (60°C)
Min. Ambient Operating Temperature: -20°F (-28°C)
Shipping Weight: 1 lbs. (.45 kg)
Switches manufactured by Antunes Controls are tested,
listed, and approved by Underwriters Laboratories File #
MH8009-504, Factory Mutual Serial #18221, Canadian
Standards Association File #25144.
Dimensions
Note: Dimensions are for reference only.
Range Adjustment
The JD-2 switch is adjustable within its range, as shown
on the range scale located on the top of the unit.
Mounting
The JD-2 is always mounted with the stem up. An
optional mounting bracket can be fastened to the bottom
section of the switch housing with a 5/16-18 x 1/2” bolt
(supplied with the bracket).
2 5/8”
(67 mm)
1/2”
(13 mm)
7/8”
(22 mm)
1 1/8”
(28 mm)
Large
Mounting
Holes:
5/16”
(8 mm) dia.
Small
Mounting
Holes:
7/32”
(5.5 mm) dia.
7/8”
(22 mm)
1-630-784-1000 Fax: 630-784-1651 Page 1 of 4 P/N 1011082 06/10
1-800-253-2991
A. J. ANTUNES & CO. www.ajantunes.com 180 Kehoe Blvd., Carol Stream, Illinois 60188
JD-2 Installation Information
Air Connections
Tubing recommended as minimums: 1/4” copper or aluminum 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.
Terminal Connections
Indicator Position Terminal
Off
On
C and NO open
C and NC closed
C and NO closed
C and NC open
Conduit Connection
Differential Inlet Connection
.1
.5
1
2
3
4
IN
W.C.
ING
Low Vacuum or
Low Pressure
High Vacuum or
High Pressure
Vacuum Only Inlet Connection
Vacuum Connection
.1
.5
1
2
3
4
IN
W.C.
ING
top chamber
C NO
NC
Vent Leave
Open
Hole for 7/8” Conduit Connection
Pressure Only Inlet Connection
.1
.5
1
2
3
4
IN
W.C.
ING
Pressure Connection
1-630-784-1000 Fax: 630-784-1651 Page 2 of 4 P/N 1011082 06/10
1-800-253-2991
Vent Leave
Open
Bottom Chamber
Loading...