Dwyer DDD User Manual

Bulletin V-22

F

A

B

D

E

C

Series DDD 8 8 , 132, 177, 265 in-lb Modulating Damper Actuator

Specifications - Installation and Op erating Instructions

Size A B C D E F

10 Nm & 15 Nm

(88 in-lb) (132 in-lb)

20 Nm & 30 Nm

(177 in-lb) (265 in-lb)

4-17/64
(108.35)
4-57/64
(124.22)

6-55/64
(174.23)
7-23.32
(196.06)

2-49/64

(70.25)

2-23/32

(69.06)

1-35/32

(39.19)

1-1/32

(26.19)

1-15/64

(31.35)

1-25/64

(35.32)

DDD Series Direct Coupled Actuators are non-spring return actu-

ators that are perfect for positioning of dampers and valves in HVAC
systems. Actuators are designed to accept 4 to 20 mA or 0 to 10 VDC
modulating control signals and are 24 VAC powered. Actuators pro­duce 88 to 265 in-lb (10 to 30 Nm) of torque. Unit features a 0 to 10
VDC feedback signal of damper position.

Features

• Direct mount.

• Actuator travel indicator.

• Overload protection.

• Manual override.

• Modulating 4 to 20 mA or 0 to 10 VDC control signal.

• Position feedback signal.

• 60,000 cycles nominal.

SPECIFICA TIONS

Power Requirements: 24 VAC, ±10%, 50/60 Hz, single phase.
Power Consumption: 7.5 VA.
Control Input: 4-20 mA or 0-10 VDC.
Overload Protection: Magnetic clutch.
Angle of Rotation: 95° (mechanically adjustable).
Accuracy: +/-5%.
Fits Shaft Diameter: 0.4”-0.75” (10-20 mm).
Position Indication: Visual indicator.
Direction of Rotation: CW/CCW.
Running Time: 88 in-lb: 66 sec., 132 in-lb: 90 sec., 177 in-lb:

110 sec.; 265 in-lb: 143 sec.

FUNCTION TESTING

Press the manual button on the back of the actuator. The gearing
inside the actuator will break away. The damper can be operated
manually while pressing the manual button. DO NOT OPERATE
WHEN POWER IS ON!

Electrical Connection: Terminal block, 18 AWG.
Manual Override: Push button.
Temperature Limit: -22 to 122°F (-30 to 50°C).
Sound: <45 dB.
Life Expectancy: 60000 full cycles.
Housin g : NEMA 2 (IP42).
Standard Accessories: (2) imitative baffles, (2) baffle setscrews,

(1) setting bracket.
Weight: 2.98 lb (1.35 kg) 88, 132 in-lb models; 3.79 lb (1.72 kg)
177, 265 in-lb models.

DWYER IN S TRU MENTS, IN C.

Phone: [phone] www.dwyer-inst.com

P.O. BOX 373 • MICHIGAN CITY, INDIANA 46361, U.S.A. Fax: [phone] e-mail: [e-mail]

WIRING DIAGRAM

Set Up

• Set jumper J1 or jumper J2 to proper selection for reverse or
direct acting. See Chart 1: Actuator Action above for more details.

•Set jumper J3 for Voltage or Current input control signal.

• Set jumper J4 for actuator direction on loss of control signal.

• Potentiometer PT1 adjusts the stroke of the actuator.

Set up for 88, 132 in-lb

Chart 1: Actuator Action

Set up for 177, 265 in-lb

Standard setting bracket (dimension in mm)

INSTALLATION DIAGRAM

©Copyright 2010 Dwyer Instruments, Inc. Printed in U.S.A. 12/10 FR# RB-443451-60 Rev. 1

MAINTE NA NCE

Upon final installation of the Series DDD Non-Spring Return Direct
Coupled Actuator, no routine maintenance is required. A periodic
check of the system calibration is recommended. The Series DDD
is not field serviceable and should be returned if repair is needed
(field repair should not be attempted and may void warranty). Be
sure to include a brief description of the problem plus any relevant
application notes. Contact customer service to receive a return
good authorization number before shipping.

DWYER IN S TRU MENTS, IN C.

Phone: [phone] www.dwyer-inst.com

P.O. BOX 373 • MICHIGAN CITY, INDIANA 46361, U.S.A. Fax: [phone] e-mail: [e-mail]