Honeywell D1, D2, D3 Operation Manual

D1,D2, and D3 Models

WARNING

CAUTION

WARNING

VERTICAL AND HORIZONTAL MOUNT

ELECTRICAL GUIDELINES

Electrical and/or pneumatic connections to damper actuators
should be made in accordance with wiring and piping
diagrams developed in compliance with applicable codes,
ordinances and regulations.

Verify power requirements.

Verify power requirements before wiring actuator.
Honeywell is not responsible for any damage to, or
failure of the unit caused by incorrect field wiring.

OWNER'S GUIDE

RECEIVING AND HANDLING

Upon receiving dampers, check for both obvious and hidden
damage. If damage is found, record all necessary information
on the bill of lading and file a claim with the final carrier. Check
to be sure that all parts of the shipment, including
accessories, are accounted for.

Dampers must be kept dry and clean. Indoor storage and
protection from dirt, dust and the weather is highly
recommended. Do not store at temperatures in excess of
100°F (37ºC).

Can cause severe injury, death, or property
damage.

Improper installation, adjustment, alteration, service or
maintenance can cause property damage, injury or
death. Read the installation, operating, and
maintenance instructions thoroughly before installing
or servicing this equipment.

Electrical Shock Hazard.

Electrical input may be needed for this equipment.
This work should be performed by a qualified
electrician.

Pre-Installation Guidelines

The basic intent of a proper installation is to secure the
volume control damper into the opening in such a manner as
to prevent distortion and disruption of damper operation. The
following items will aid in completing the damper installation in
a timely and effective manner.

1. Check the schedules for proper damper locations within
the building. Visually inspect the damper for damage.

2. Lift or handle damper using sleeve or frame. Do not lift
damper using blades, linkage, actuators, or
jackshafting. When handling multiple sections
assemblies, use sufficient support to evenly lift at each
section mullion (see Fig. 1). Do not drag, step on, apply
excessive bending, twisting, or racking.

38-00031-01

D1,D2, AND D3 MODELS

M35708

SPREADER
BAR

ATTACHMENTS

MULTI SECTION DAMPERS

1. Duct opening or opening square should measure 1/4
inch (6mm) larger than damper dimension and should
be straight and level. See Fig. 2 and 3.

Fig. 1. Handling multiple sections assemblies.

3. Do not install screws in damper frame that will interfere

with unexposed blade linkage and prevent damper
blades from opening and/or closing.

4. Damper must be installed into duct or opening square
and free of twist or other misalignment. Damper must
not be squeezed or stretched into duct or opening. Out
of square, racked, twisted or misaligned installations
can cause excessive leakage and/or torque
requirements to exceed damper/actuator design.

5. Damper and actuator must be kept clean, dry and
protected from dirt, dust and other foreign materials
prior to and after installation. Examples of such foreign
materials include but are not limited to:
a. Mortar dust
b. Drywall dust
c. Firesafing materials
d. Wall texture
e. Paint overspray

6. Damper should be sufficiently covered as to prevent
overspray if wall texturing or spray painting will be
performed within 5 feet (1.50m) of the damper.
Excessive dirt or foreign material deposits on damper
can cause excessive leakage and/or torque
requirements to exceed damper/actuator design.

7. ACCESS: Suitable access (actuators maintenance,
etc.) must be provided for damper inspection and
servicing. Where it is not possible to achieve sufficient
size access, it will be necessary to install a removable
section of duct.

INSTALLATION

Failure to follow instructions will void all warranties

A

C

E

B

D

AF = BE
AB = CD

F

M35709

Fig. 2. Opening dimensions should be square.

DO NOT TWIST
OR BOW. MOUNT
DAMPER PLUMB
IN THE OPENING.

M35710

Fig. 3. Damper must be straight and level.

2. If more than two sections wide, unit ships as a multiple

section assembly and a single section together. The
single section is joined to the side of the multiple section
where the jackshaft extends past the frame 4 inches
(see Fig. 4 and 5).

3. A damper assembly is not restricted to a maximum
number of sections, but must not exceed the section
sizes and overall sizes in Table 1.

Table 1. Maximum Section Sizes.

Damper

Model

Section Size W x H in.

(mm)

D2, D3 48 x 74

Maximum Single

Maximum Overall Size

for Multi-Section

Dampers

Unlimited

(1219 x 1880)

D1 60 x 74

Unlimited

(1524 x 1880)

4. The damper sections must be attached together with
#10 x 3.4in.(19mm) max. sheet metal screws, 1/4 in.
(6mm) diameter nuts and bolts, tack or spot welds, or

3.16 in. (4mm) diameter steel pop rivets. Attachments
must be spaced a maximum of 6 in. (152mm) on
centers and a maximum of 2 in. (50mm) from corners.
Attachments must be made on front face and back face
(air entering and air exiting side) of damper sections.

38-00031—01 2