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: [phone] 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: [phone] Page 2 of 4 P/N 1011082 06/10
1-800-253-2991

Vent Leave

Open

Bottom Chamber

A. J. ANTUNES & CO. www.ajantunes.com 180 Kehoe Blvd., Carol Stream, Illinois 60188

JD-2 Installation Information

Warranty

1. Antunes Controls products are guaranteed to be free
from mechanical and electrical defects for a period of
one year from date of shipment under normal use and
service provided installation is made in accordance
with manufacturers’ recommendations.

2. Parts deemed defective shall be repaired or replaced
at manufacturers option and at manufacturers expense
but shall not include foreign or federal excise taxes,
state or municipal sale or use taxes, all such taxes
not limited to the foregoing being responsibility of the
purchaser.

3. No charge for travel and/or mileage will be allowed to
purchaser.

4. Antunes Controls reserves the right to make changes
in design or make any improvements on any products.
The right is always reserved to modify our equipment
because of new technology, underwriter’s requirements
and/or government regulations.

5. The following are not covered under warranty:

a. Failure from neglect, abuse, careless handling and

mis-application of unit.

b. Failure to observe guidelines for installation or

improper voltage hook-up.

c. Failure caused by improper maintenance.

d. Unless specifically allowed by Antunes Controls, no

other charges may be included under warranty.

Limitation of Liability: If it is understood and agreed

that seller’s liability whether in contract, in tort, under

any warranty, in negligence or otherwise, shall not

exceed the return of the amount of the purchase price

paid by purchaser and under no circumstances shall

seller be liable for special, indirect or consequential

damages. The price stated for the equipment is a

consideration in limiting seller’s liability. No action,
regardless of form, arising out of the transactions may
be brought by purchaser more than one year after the

cause of action has accrued.

1-630-784-1000 Fax: [phone] Page 3 of 4 P/N 1011082 06/10
1-800-253-2991

A.J. Antunes & Co.

Headquarters/Manufacturing

180 Kehoe Boulevard

Carol Stream, Illinois 60188 USA

Phone [phone]

Toll Free [phone]

Fax: [phone]

www.ajantunes.com

Antunes Equipment

Manufacturing (Suzhou) Ltd.,

9 Hou Ju Road, Building #24,

S&T Park, SND

Suzhou, Jiangsu, China 215011

Phone: [phone]

Fax: [phone]