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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–84
D-4073 Pneumatic Piston Damper Actuator
Description
The D-4073 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 actuator is also recommended for use on
other airflow control dampers, in interior
locations, up to a maximum area of 6.75 sq. ft
for proportional volume control and 11.7 sq. ft
for two-position actuation, provided that the
torque requirements are compatible with the
specific application.
The D-4073 is a direct replacement for
existing D-3073 actuators and a functional
replacement for former D-251 actuators.
Refer to the D-4073 Pneumatic Actuator
Product Bulletin (LIT-2681074) 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
Applications
When an 8 to 13 psig spring range is used
with proportional control, the damper size is
limited to 6.75 sq. ft maximum. As a
two-position control, damper size is limited to
11.7 sq. ft.
Three nominal spring ranges are available:
3 to 7 psi, 5 to 10 psi, and 8 to 13 psi. The
control air pressure for normal HVAC
operation is 0 to 20 psig.
The D-4073 incorporates several internal and
external features that add functional flexibility.
A two-way swivel connection on the actuator
cylinder head provides non-binding
movement. All actuators have a telescoping
piston rod for easy linkage of the damper for
attachment points up to 8-3/4 in. (222 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.
A stop screw kit is available for special
applications to limit the power stroke of the
actuator when required. A 4 ft (122 cm)
linkage rod is also available for special
applications to reach extended linkage when
required.
Where precision sequential operation is
desired, or additional positioning power is
necessary, use a D-9502 pilot positioner. Up
to four more D-4073 actuators may be slaved
from one pilot positioner for coupled dampers.
Repair Information
If the D-4073 Pneumatic Actuator fails to
operate within its specifications, replace the
unit. For a replacement actuator, contact the
nearest Johnson Controls® representative.
Selection Chart
Code
Number
Nominal Spring Range, psig (kPa)
D-4073-1 8 to 13 (56 to 91) with D-9502 and Universal Mounting Bracket
D-4073-2 8 to 13 (56 to 91) with Universal Mounting Bracket
D-4073-3 5 to 10 (35 to 70) with Universal Mounting Bracket
D-4073-4 8 to 13 (56 to 91) with D-9502 and Auxiliary Mounting Bracket
D-4073-5 8 to 13 (56 to 91) with Auxiliary Mounting Bracket
D-4073-6 5 to 10 (35 to 70) with Auxiliary Mounting Bracket
D-4073-7 3 to 7 (21 to 49) with Auxiliary Mounting Bracket
D-4073-6001 3 to 7 (21 to 49) Body Only
D-4073-6002 5 to 10 (35 to 70) Body Only
D-4073-6003 8 to 13 (56 to 91) Body Only
Code No. LIT-1921030
Accessories
Note: Refer to reference bulletins in the Pneumatic Control Manual
(FAN 717.1) for models applying to unit ventilators and other types of
units.
Code
Number
Description Weight,
lb (kg)
D-3073-100 Rubber Boot Kit (Includes Ball Joint and Cover) 0.2 (0.10)
D-3153-104 Stop Screw Kit 0.5 (0.23)
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 0.5 (0.23)
D-9502-12 Proportional Pilot Positioner Kit 2.0 (0.91)
D-4073 Pneumatic Piston
Damper Actuator
Pneumatic Damper Actuators
Pneumatic Damper
Actuators
Pneumatic Damper
Actuators