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The performance specifications are nominal and conform to acceptable industry standards. For applications at conditions beyond these specifications, consult the local Johnson Controls office.
Johnson Controls, Inc. shall not be liable for damages resulting from misapplication or misuse of its products. © 2014 Johnson Controls, Inc.
www.johnsoncontrols.com
V–83
D-4070 Pneumatic Piston Damper Actuator
Description
The D-4070 Two-Stage Pneumatic Actuator is
a multipurpose positioning device used to
accurately position small dampers primarily on
unit ventilators, VAVs, terminal units, and
small ventilating dampers in response to
output signals of a pneumatic controller or
electro-pneumatic transducer.
The D-4070 is specifically designed to provide
ASHRAE Cycle II and W control of unit
ventilators where a minimum of outdoor air (15
to 50%) is admitted during the heating and
ventilating stage and gradually increased to
100%, if needed, during the cooling and
ventilating stage.
The D-4070 is a direct replacement for
existing D-3070 actuators and a functional
replacement for older D-255 actuators.
Refer to the D-4070 Two-Stage Pneumatic
Actuator Product Bulletin (LIT-2681082) for
important product application information.
Features
two-way swivel connection ensures
non-binding movement and full power
delivery
glass-reinforced polymer housing, which is
lightweight and corrosion- and
chemical-resistant
telescoping linkage for fast and flexible
installation
economical because has two springs for
two-stage operation, which function as two
separate actuators
designed to provide ASHRAE Cycle 11
and W controls of unit ventilators
Applications
The D-4070 has a first-stage nominal spring
range of 3 to 6 psig (21 to 42 kPa) and can be
furnished with a second-stage spring range of
either 9 to 12 psig (63 to 84 kPa) or 11 to
14 psig (77 to 98 kPa). The control air
pressure for normal HVAC operation is 0 to
20 psig. The total stroke of the D-4070 is
2-3/4 in. (70 mm) and is adjustable from
0 to 50% during the first stage of operation.
The D-4070 incorporates several internal and
external features that add functional flexibility.
A two-way swivel connection on the actuator
cylinder head provides nonbinding
movement. All actuators have a telescoping
piston rod for easy linkage of the damper for
attachment points up to 8-3/4 in. (214 mm)
away from the face of the actuator. A swivel
ball joint and slotted crankarm connector are
furnished on all actuators for optional
methods of linkage to the damper.
When used with proportional control, the
damper size is limited by the torque
requirement.
Repair Information
If the D-4070 Pneumatic Actuator fails to
operate within its specifications, replace the
unit. For a replacement actuator, contact the
nearest Johnson Controls® representative.
Selection Chart
1
Code
Number
Nominal Spring Range, psig (kPa)
D-4070-1 3 to 6 (21 to 42) First Stage, 9 to 12 (63 to 84) Second Stage
with Auxiliary Mounting Bracket
D-4070-2 3 to 6 (21 to 42) First Stage, 11 to 14 (35 to 70) Second Stage
with Auxiliary Mounting Bracket
D-4070-6001 3 to 6 (21 to 42) First Stage, 9 to 12 (63 to 84) Second Stage
Body Only
D-4070-6002 3 to 6 (21 to 42) First Stage, 11 to 14 (35 to 70) Second Stage
Body Only
1. Check your UV standard equipment sheets for the various models for the
unit ventilator manufacturers.
When a unit ventilator manufacturer specifies a D-4070, be sure to select the
one that is designed for that unit.
Code No. LIT-1921025
Accessories
Code
Number
Description Weight, lb (kg)
D-3073-105 Mounting Post Kit, 5 per Kit 0.5 (0.23)
D-3073-604 Ball Joint - Weather Resistant 0.5 (0.23)
D-3153-103 Rod - 8-3/4 in. (222 mm) Replacement 1.0 (0.45)
D-3153-106 Auxiliary Mounting Bracket 1.0 (0.45)
D-3153-111 E-Rings for Pivot Post, 10 per Kit 0.5 (0.23)
D-3153-112 Mounting Nuts for Pivot Post, 10 per Kit 0.5 (0.23)
DMPR-KC050 Crankarm: 7/16 in. Shaft Radius
Adjustable to 2-3/4 in. Radius
0.5 (0.23)
DMPR-KC051 Crankarm: 3/8 in. Shaft Radius
Adjustable to 2-3/4 in. Radius
0.5 (0.23)
DMPR-KC053 Crankarm: 1/2 in. Shaft Radius
Adjustable to 2-3/4 in. Radius
0.5 (0.23)
DMPR-KC054 Blade Arm Kit 1.3 (0.59)
DMPR-KC102 Rod - 4 ft (122 cm) 2.0 (0.91)
DMPR-KC251 Universal Mounting Bracket 3.5 (1.13)
DMPR-KC300 Swivel Ball Joint, 10 per Kit 0.5 (0.23)
D-4070 Pneumatic Piston
Damper Actuator
Technical Specifications
D-4070 Pneumatic Piston Damper Actuator
Stroke 2-3/4 in. (70 mm)
Control Air Pressure 0 to 20 psig for HVAC,
25 psig (171 kPa) Maximum
Air Connections 1/8 in. NPT Straight Barbed Fitting for
1/4 in. O.D. Polytubing (Furnished)
Ambient Storage Condition -20 to 150°F (-29 to 66°C)
Ambient Operating Conditions 35 to 150°F (2 to 66°C)
Effective Diaphragm Area 6.7 in
2
(45 cm
2
)
Housing Material Glass-Reinforced Polymer,
UL 94 HB Flame Class Rating
Diaphragm Material Synthetic Elastomer
Dimensions 3-7/8 in. Diameter x 9-15/16 in. Long
Shipping Weight 3.5 lb (1.6 kg)
Maximum Force
1
Values at 20 psig (140 kPa) Supply
First-Stage
Spring
Range, psig
(kPa)
Second-Stage
Spring Range,
psig (kPa)
Stroke Force, lb
(Newton)
Torque Output
for 90° Rotation
3 to 6
(21 to 42)
9 to 12
(63 to 84)
Power 53.6 (239) 73.7 lb·in (8.4 N·m)
Return 20.1 (89) 27.6 lb·in (3.1 N·m)
3 to 6
(21 to 42)
11 to 14
(77 to 98)
Power 40.2 (179) 55.3 lb·in (6.3 N·m)
Return 20.1 (89) 27.6 lb·in (3.1 N·m)
1. Force calculated using 6.7 lb/psig available actuator force
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