Honeywell TROL-A-TEMP AOBD Series Operation manual

PRODUCT DATA
68- 024
6
® U.S. Re
g
istered Trademark
Cop
y
ri
g
ht © 2001 Hone
y
well • All Ri
g
hts Reserved
Automatic Opposed Blade Dampers
(AOBD)
APPLICATION
The opposed blade dampers are rectan
g
ular dampers with a
24-volt, two-position, power open and closed damper motor
used to control the volume of circulatin
g
air in heatin
g
, coolin
g
,
and ventilatin
g
s
y
stem.
FEATURES
• Anodized extruded aluminum.
• Three models available:
— AOBD with side-mounted motor.
— AOBD-BM with bottom-mounted motor.
— IOBD with internally-mounted motor.
• Fully assembled and ready for installation.
• For odd-size dampers, contact Honeywell Customer
Service or your local Honeywell Sales Representative
for pricing.
• Order dampers by size and model:
— Order AOBD and IOBD using width by height.
(AOBD motor and end plate are mounted on the
height dimension.)
— Order AOBD-BM using height by width. (AOBD-BM
motor is mounted on the width dimension.)
— AOBD-BM is available only up to 20 in. wide with-
out a filler strip.
• When ordering AOBD-BM dampers up to 24 in. wide, a
filler strip up to 4 in. is built-in.
• For odd-size dampers, order a one-inch filler strip for
each odd dimension.
AOBD AOBD-BM
IOBD

AUTOMATIC OPPOSED BLADE DAMPERS (AOBD)
68-0246 2
ORDERING INFORMATION
When purchasin
g
replacement and modernization products from
y
our TRADELINE®wholesaler or distributor, refer to the
TRADELINE®Catalo
g
or price sheets for complete orderin
g
number.
If
y
ou have additional
q
uestions, need further information, or would like to comment on our products or services, please write or
phone:
1. Your local Home and Buildin
g
Control Sales Office
(
check white pa
g
es of
y
our phone director
y)
.
2. Home and Buildin
g
Control Customer Relations
Hone
y
well, 1885 Dou
g
las Drive North
Minneapolis, Minnesota 55422-4386
In Canada—Hone
y
well Limited/Hone
y
well Limitée, 35 D
y
namic Drive, Scarborou
g
h, Ontario M1V 4Z9.
International Sales and Service Offices in all principal cities of the world. Manufacturin
g
in Australia, Canada, Finland, France,
German
y
, Japan, Mexico, Netherlands, Spain, Taiwan, United Kin
g
dom, U.S.A.
SPECIFICATIONS
IMPORTANT
This specifications given in this publication do not
include normal manufacturing tolerances. Therefore,
this unit may not exactly match the listed specifica-
tions. Also, this product is tested and calibrated
under closely controlled conditions, and some minor
differences in performance can be expected if those
conditions are changed.
Models:
AOBD has a side-mounted motor.
AOBD-BM has a bottom-mounted motor.
IOBD has an internall
y
-mounted motor.
Available Sizes:
NOTE: For odd-size dampers, order a one-inch filler strip for
each odd dimension.
AOBD and IOBD:
—Sized usin
g
width b
y
hei
g
ht
(
AOBD motor and end plate
are mounted on the hei
g
ht dimension
)
.
—Even sizes are available for AOBD and IOBD from 6 x 4 in.
to 30 x 14 in.
AOBD-BM:
—Sized usin
g
hei
g
ht b
y
width
(
AOBD-BM motor is mounted
on the width dimension
)
.
—Even sizes are available for AOBD-BM onl
y
from 4 x 6 in.
to 14 x 20 in. without a filler strip but up to 14 x 30 in. with a
built-in filler strip.
(
When orderin
g
AOBD-BM dampers up
to 24 in. wide, a filler strip up to 4 in. is built-in.
)
Dimensions:
All damper sizes are built sli
g
htl
y
smaller than the listed
dimensions to ensure correct fit. See Fi
g
.1-3.
Fig. 1. AOBD dimensions in in. (mm).
2-1/8
(54)
3-1/4
(83)
3-5/8
(92)
2-3/8
(60)
M14848
LISTED
DAMPER
HEIGHT
5 (127)
WIDTH
HEIGHT
HEIGHT DIMENSIONS: 4, 6, 8, 10, 12, OR 14 IN.
(102, 152, 203, 254, 305, OR 356 MM).
TO ENSURE PROPER FIT, DAMPER HEIGHT
IS 3/16 IN. (5 MM) LESS THAN THE LISTED
HEIGHT DIMENSION.
WIDTH DIMENSIONS: 8, 10, 12, 14, 16, 18, 20, 22,
24, 26, 28, OR 30 IN. (203, 254, 305, 356, 406,
457, 508, 559, 610, 660, 711, OR 762 MM).
TO ENSURE PROPER FIT, DAMPER WIDTH IS
1/8 IN. (3 MM) LESS THAN THE LISTED WIDTH DIMENSION.
1
1
2
ADDITIONAL SIZES AVAILABLE (WIDTH X HEIGHT): 16X16, 18X16, 18X18, 20X16, 20X18, AND 20X20.
SIZES NOT AVAILABLE (WIDTH X HEIGHT): 8X10, 8X12, 8X14, 10X12, 10X14, AND 12X14.
LISTED DAMPER HEIGHT = ACTUAL AIR DUCT HEIGHT.
1
2

AUTOMATIC OPPOSED BLADE DAMPERS (AOBD)
3 68-0246
Fig. 2. AOBD-BM dimensions in in. (mm).
Fig. 3. IOBD dimensions in in. (mm).
3-5/8
(90)
M14849
2-1/8
(54) 3-1/4
(83)
2-3/8
(60)
LISTED DAMPER
WIDTH
WIDTH
5
(127)
HEIGHT
HEIGHT DIMENSIONS: 6, 8, 10, 12, OR 14 IN.
(152, 203, 254, 305, OR 356 MM).
TO ENSURE PROPER FIT, DAMPER HEIGHT
IS 1/8 IN. (3 MM) LESS THAN THE LISTED
HEIGHT DIMENSION.
WIDTH DIMENSIONS: 8, 10, 12, 14, 16, 18, OR 20 IN.
(203, 254, 305, 356, 406, 457, OR 508 MM).
TO ENSURE PROPER FIT, DAMPER WIDTH IS
3/16 IN. (5 MM) LESS THAN THE LISTED
WIDTH DIMENSION.
ADDITIONAL SIZES AVAILABLE (HEIGHT X WIDTH): 16X16, 16X18, 16X20, 18X18, 18X20, AND 20X20.
SIZES NOT AVAILABLE (HEIGHT X WIDTH): 10X8, 12X8, 12X10, 14X8, 14X10, AND 14X12.
LISTED DAMPER WIDTH = ACTUAL AIR DUCT WIDTH.
1
2
2
1
1
M14850
WIDTH
HEIGHT
LISTED
DAMPER
HEIGHT
2-1/8
(54)
7/8
(22)
1
(25)
2-1/4
(60)
2-1/4
(57)
MOUNTING TAB 3-1/4
(83)
2-1/16
(52)
HEIGHT DIMENSIONS: 4, 6, 8, 10, 12, OR 14 IN.
(102, 152, 203, 254, 305, OR 356 MM).
TO ENSURE PROPER FIT, DAMPER HEIGHT
IS 3/16 IN. (5 MM) LESS THAN THE LISTED
HEIGHT DIMENSION.
WIDTH DIMENSIONS: 8, 10, 12, 14, 16, 18, 20, 22,
24, 26, 28, OR 30 IN. (203, 254, 305, 356, 406,
457, 508, 559, 610, 660, 711, OR 762 MM).
TO ENSURE PROPER FIT, DAMPER WIDTH IS
1/8 IN. (3 MM) LESS THAN THE LISTED
WIDTH DIMENSION.
ADDITIONAL SIZES AVAILABLE (WIDTH X HEIGHT): 16X16, 18X16, 18X18, 20X16, 20X18, AND 20X20.
SIZES NOT AVAILABLE (WIDTH X HEIGHT): 8X10, 8X12, 8X14, 10X12, 10X14, AND 12X14.
LISTED DAMPER HEIGHT = ACTUAL AIR DUCT HEIGHT.
1
2
2
1
1

AUTOMATIC OPPOSED BLADE DAMPERS (AOBD)
68-0246 4
INSTALLATION
When Installing this Product...
1. Read these instructions carefull
y
. Failure to follow these
instructions can dama
g
e the product or cause a hazard-
ous condition.
2. Check the ratin
g
s
g
iven in the instructions and on the
product to make sure the product is suitable for
y
our
application.
3. Installer must be a trained, experienced service techni-
cian.
4. After completin
g
installation, use these instructions to
check out the product operation.
Planning the Installation
Selecting a Location
Select a location for the zone damper that is at least three feet
from the HVAC unit plenum in the air duct takeoff to the
respective zone. IODB dampers can be installed near air
re
g
isters.
The AOBD is a complete factor
y
-assembled motorized
damper. It comes complete and read
y
for installation.
Selecting Damper Size
To ensure correct operation, be sure to select the correct
damper size for the air duct:
IMPORTANT
Be aware that damper sizes are built slightly smaller
than the listed dimensional sizes.
•If the damper is forced into an undersized air duct,
the excess pressure can jam the damper blades and
cause improper operation.
•When a small percentage of continuous flow is
desired in a zone, even when the damper blades are
closed, install a damper that is shorter than the air
duct width. Refer to Fig. 4.
Fig. 4. Installing shorter dampers.
Selecting Location with Humidifier Installed
•Recommended humidifiers are the evaporative t
y
pe.
IMPORTANT
Excessive lime or mineral deposits can accumulate
on damper blades and cause improper operation
when spray or atomizing type humidifiers are
installed in the furnace plenum or air supply duct with
the zone dampers.
•Non-recommended humidifiers are the spray or
atomizer type that is installed in the furnace plenum
or air supply duct.
Installing the Dampers
IMPORTANT
—Install AOBD, AOBD-BM and IOBD dampers into a
squared air duct.
—Use multiple dampers and damper mounting tracks.
to install applications wider than 30 in. See Fig. 5.
—Do not force dampers into undersized air ducts.
Excess pressure can damage damper blades.
—Do not weld dampers to the air ducts or damper
mounting tracks.
—In multiple damper applications, do not weld damp-
ers together.
—When securing dampers with sheet metal screws,
refer to Installation Instructions. Incorrect use of
sheet metal screws can damage the damper blades
and the electric actuator.
—Be sure high limit setting is 200°F (93°C) or lower.
Higher settings can damage the electric actuator.
IMPORTANT
When installing dampers in vertical air ducts, always
secure the front and back of the damper to the air
duct. See Fig. 5.
Fig. 5. Securing back of damper to air duct.
1
1 DAMPER IS SLIGHTLY SMALLER THAN THE AIR DUCT SIZE. THIS
GAP ALLOWS A CONSTANT FLOW OF CONDITIONED AIR INTO
A ZONE WHEN DAMPER BLADES ARE CLOSED. M513
M514
1SECURE BACK OF DAMPER TO AIR DUCT USING
TWO 1/4 IN. (6 MM) SHEET METAL SCREWS.
1

AUTOMATIC OPPOSED BLADE DAMPERS (AOBD)
5 68-0246
IMPORTANT
When installing damper in horizontal air duct, be
sure to mount the electric actuator and drive linkage
toward the top of the air duct. See Fig. 6.
Fig. 6. Correct damper mounting position.
INSTALLING AUTOMATIC OPPOSED BLADE DAMPERS (AOBD), SEE
FIG. 7)
1. Be sure the AOBD is correctl
y
sized to the air duct.
2. Select an AOBD location that is at least three feet from
the furnace plenum.
3. Cut a three-in.
(
76 mm
)
openin
g
in one side of the air
duct at the location selected. Be sure the openin
g
is cut
full
y
to the top and bottom air duct seams.
4. Slide the AOBD into the air duct. Be sure the electric
actuator is mounted toward the top of the air duct.
5. For small air duct sizes
(
20 x 8 in. 18 x 10 in, 16 x 12 in.
and smaller
)
, secure the AOBD mountin
g
plate to the air
duct with sheet metal screws provided.
6. For lar
g
e air duct sizes
(
20 x 8 in, 18 x 10 in., and 16 x
12 in. and lar
g
er
)
, secure the mountin
g
plate to the air
duct with the sheet metal screws provided. Then secure
the back of the AOBD to the air duct. If the back of the
AOBD cannot be reached, install two mountin
g
tracks.
See Fi
g
. 8.
INSTALLING MULTIPLE DAMPERS AND DAMPER MOUNTING
TRACKS
For air duct sizes lon
g
er than 30 in., use multiple dampers and
install mountin
g
tracks inside the air ducts. See Fi
g
. 8.
Fig. 7. Installing AOBD.
M2406A
INCORRECT
CORRECT
3 IN. (76 mm)
DUCT OPENING
1
1
2
2
DAMPER MOTOR ACTUATOR AND DRIVE LINKAGE MUST BE TOWARD
TOP OF DUCT.
USE 1/4 IN. (6 mm) SHEET METAL SCREWS PROVIDED.
3
3
FOR LONGER DUCTS OR VERTICAL DUCT APPLICATIONS, SECURE
BACK OF DUCT USING TWO SHEET METAL SCREWS. M2275B

AUTOMATIC OPPOSED BLADE DAMPERS (AOBD)
68-0246 6
Fig. 8. Installing multiple dampers and damper mounting tracks.
INSTALLING AOBD-BM (SEE FIG. 9)
IMPORTANT
Secure the AOBD-BM by inserting screws in the top
and bottom of the damper, not the sides of the
damper.
1. Be sure the AOBD-BM is correctl
y
sized to the air duct.
2. Select an AOBD-BM location that is at least three feet
from the furnace plenum.
3. Cut a 3 in.
(
76 mm
)
openin
g
in the bottom or top of the
air duct at the location selected. Be sure the openin
g
is
cut full
y
to the air duct seams on each side.
4. Slide the AOBD-BM into the air duct.
5. Secure the AOBD-BM mountin
g
plate to the air duct
usin
g
the sheet metal screws provided.
INSTALLING INTERNAL OPPOSED BLADE DAMPERS (IOBD), SEE
FIG. 10
IMPORTANT
Secure the IOBD by inserting the mounting screws
through the front and back mounting tabs.
1. Be sure the IOBD is correctl
y
sized to the air duct.
2. Select an IOBD location that is at least three feet from
the furnace plenum or near an air re
g
ister.
3. Slide the IOBD into the air duct. Be sure the electric
actuator is mounted toward the top of the air duct.
4. Secure the IOBD to the air duct usin
g
the front and back
mountin
g
tabs.
Fig. 9. Installing AOBD-BM (bottom mount).
3 IN. (76 mm)
DUCT OPENING
1
2
DAMPER MOTOR ACTUATOR AND DRIVE LINKAGE
MUST BE TOWARD TOP OF DUCT.
USE 1/4 IN. (6 mm) SHEET METAL SCREWS PROVIDED.
1
M2274B
2
DAMPER MOUNTING TRACKS INSTALLED INTO TOP
AND BOTTOM OF AIR DUCT.
3
3
3 IN. (76 mm)
DUCT OPENING
3 IN.
(76 mm)
DUCT
OPENING
1
1
2
2
USE 1/4 IN. (6 mm) SHEET METAL SCREWS PROVIDED.
M2276B
FOR LONGER AIR DUCTS, SECURE BACK OF DUCT
USING TWO SHEET METAL SCREWS PROVIDED.

AUTOMATIC OPPOSED BLADE DAMPERS (AOBD)
7 68-0246
Fig. 10. Installing IOBD.
USE 1/4 IN. (6 MM)
SHEET METAL SCREWS
(PROVIDED) THROUGH
MOUNTING TABS.
M515A

AUTOMATIC OPPOSED BLADE DAMPERS (AOBD)
68-0246 8
WIRING
Wiring Independent Zone Applications, See
Fig. 11
For independent zone applications, follow the thermostat
wirin
g
instructions, if available, or see Fi
g
. 11 for a t
y
pical
wirin
g
dia
g
ram.
Fig. 11. Independent zone application wiring diagram.
Wiring Zone Systems
For zone s
y
stems, follow the thermostat and central lo
g
ic
panel wirin
g
instructions, if available.
Wiring Tandem Dampers (See Fig. 12-14)
When two dampers are controlled b
y
the same thermostat
(
or
older panel with five-wire control circuit
)
, such as occurs when
two re
g
isters, diffusers, or dampers suppl
y
the same room or
zone, the second unit is controlled b
y
the switch action of the
first unit
(
see Fi
g
. 12
)
.
A tandem wirin
g
dia
g
ram for use with an electric panel is
shown shown in Fi
g
. 13.
6
JJ
COOL
HEAT
HEAT COOL
W1 Y1
ADJUST-
ABLE
HEAT
ANTICIPATOR
T87F/Q539B INTERNAL SCHEMATIC
R1 TEMPERATURE
FALL
T87F
4
5
45 6 Z
123X
DAMPER
ACTUATOR
L2
L1
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD
PROTECTION AS REQUIRED.
TERMINALS DUAL MARKED —R/5, W/4, Y/6 —ON 137421 WALLPLATE.
NO SYSTEM SWITCHING ON 137421 WALLPLATE.
FOR CORRECT SYSTEM OPERATION, DO NOT DISCONNECT FACTORY-
INSTALLED J-J JUMPER ON Q539B.
USE T87F3715/Q539B1039 OR T87F3707/Q539B1021. M1366C
(HOT)
(COM) (HOT)
1
1
2
2 2
2
3
3
4
4
5
5

AUTOMATIC OPPOSED BLADE DAMPERS (AOBD)
9 68-0246
Fig. 12. Tandem wiring of dampers to the thermostat in an
independent zone application. Fig. 13. Typical tandem wiring diagram with control panel.
Fig. 14. Tandem wiring of automatic opposed blade damper (AOBD) and automatic round damper (ARD).
456Z
123X
456Z
DAMPER
ACTUATORS
12 3X
THERMOSTAT
M885
6
5
4
TO 24V
T8
T7
T6
T5
T4
M6
M4
M1
456Z
123X
DAMPER
ACTUATOR
456Z
123X
DAMPER
ACTUATOR
TYPICAL CONTROL PANEL
1
11
JUMPER TERMINALS 2 AND 5 ON DAMPER ACTUATORS.
M2280D
T6
T5
T4
M6
M4
M1
TYPICAL
CONTROL PANEL
1
2
1
2
456Z
123X
OPPOSED
BLADE
DAMPER
ACTUATOR
TO ATTACH ARD TO OLDER STYLE
(5-WIRE) PANELS, CONNECT
JUMPER BETWEEN PANEL
TERMINALS M2 AND M5.
ARD OPENS LAST.
MOTOR
M14847
ARD

AUTOMATIC OPPOSED BLADE DAMPERS (AOBD)
68-0246 10
CHECKOUT
After installin
g
and wirin
g
the dampers, turn on the power
suppl
y
and check out the s
y
stem. To check out the forced air
s
y
stem, see the s
y
stem specifications.
CAUTION
Equipment Damage Hazard.
Shorting can damage thermostat heat anticipator.
Avoid shortin
g
across s
y
stem control terminals when
checkin
g
s
y
stem operation.
IMPORTANT
To ensure accurate temperature control, do not
touch or breathe on the thermostat bimetal or ther-
mometer.
Determining Damper Position (See Fig. 15)
1. Observe that damper is open when the crank arm points
toward the damper.
2. Observe that damper is closed when the crank arm
points awa
y
from the damper.
Fig. 15. Determining damper position.
THE DAMPER IS OPEN WHEN THE CRANK ARM
POINTS TOWARD THE DAMPER. THE DAMPER IS CLOSED WHEN THE CRANK ARM
POINTS AWAY FROM THE DAMPER.
1
1REMOVE ACTUATOR COVER TO VIEW CRANK ARM POSITION.
1
M2281

AUTOMATIC OPPOSED BLADE DAMPERS (AOBD)
11 68-0246
SERVICE
Checking Damper Blades
Occasionall
y
damper blades stick while openin
g
or closin
g
.
The problem ma
y
be caused b
y
a worn motor switch or
bindin
g
damper blades. To locate the problem:
1. Remove the electric actuator enclosure, if necessar
y
.
2. Separate the crank arm from the motor shaft usin
g
a 1-
16 Allen wrench.
3. Usin
g
y
our hand, open and close the damper blades
several times b
y
pushin
g
and pullin
g
the crank shaft:
a. If linka
g
e and damper blades move freel
y
, the
y
are
workin
g
correctl
y
.
b. If linka
g
e and damper blades re
q
uire effort to open
or close, replace the damper and repeat step 2.
4. If the damper blades still re
q
uire considerable effort to
open or close, check that the damper is sized correctl
y
and that there is no pressure on the damper blades. If
the damper is not sized correctl
y
, replace the old
damper with a correctl
y
-sized damper.
5. Attach the crank arm to the motor drive shaft.
6. If the damper blades continue to stick while openin
g
or
closin
g
, refer to the Installation Instruction to ensure the
mountin
g
screws are installed correctl
y
.
7. Be sure the damper blades close full
y
b
y
shortin
g
termi-
nals 5 and 6. If there is a
g
ap between damper blades:
a. Loosen the crank arm from the motor drive shaft
usin
g
a 1-16 Allen wrench.
b. Manuall
y
close the
g
ap between the damper blades.
c. Ti
g
hten the crank arm to the motor drive shaft usin
g
a 1-16 Allen wrench.
Checking Electric Actuator (See Fig. 16)
1. Remove wires from the damper terminals.
2. Connect 24 Vac to electric actuator terminals 1 and 2.
3. Ensure the electric actuator operates correctl
y
:
a. Remove wires from terminals 4 and 6.
b. Short terminals 4 and 5 to open the damper blades.
c. Short terminals 5 and 6 to close the damper blades.
(
1
)
If the dampers open and close as indicated, the
s
y
stem is operational.
(
2
)
If the dampers do not operate, as indicated,
replace the electric actuator and repeat steps 1
and 2.
4. Ensure the end-switch operates correctl
y
:
a. Connect a 24 Vac test li
g
ht between terminals 1 and
3.
b. Short terminals 4 and 5:
(
1
)
When the damper blades are full
y
open, the
end-switch en
g
a
g
es, the 24 Vac test li
g
ht turns
on, and the electric actuator turns off.
c. Short terminals 5 and 6:
(
1
)
When the damper blades are full
y
closed, the
end-switch en
g
a
g
es, the 24 Vac li
g
ht turns off,
and the electric actuator turns off.
5. If the motor and end-switches do not operate, as indi-
cated, replace the electric actuator and repeat steps 1
throu
g
h 4.
6. Replace the electric actuator enclosure.
Fig. 16. Checking the electric actuator.
Replacing Electric Actuator
IMPORTANT
Electric actuator is shipped in the open damper posi-
tion.
1. Usin
g
a 1-16 Allen wrench, loosen the crank arm set-
screw that connects the crank arm to the motor drive
shaft.
2. Remove the crank arm from the motor drive shaft.
3. Remove the two screws from the crank arm side of the
actuator box.
4. Remove the electric actuator from the actuator box.
5. Install the new electric actuator into the actuator box.
6. Ti
g
hten the two screws into the crank arm side of the
actuator box.
7. Attach the crank arm to the motor drive shaft.
8. Ti
g
hten the crank arm set screw.
456
z
123x
L1 (HOT)
L2
24V
24V
TEST
LIGHT
SHORT TERMINALS 4 AND 5 TO OPEN DAMPER BLADES.
SHORT TERMINALS 5 AND 6 TO CLOSE DAMPER BLADES.
24V TEST LIGHT TURNS ON WHEN DAMPER BLADES OPEN
AND TURNS OFF WHEN DAMPER BLADES CLOSE. M2278A
1
2
3
12
3

68-0246 G.H. 02-01 www.hone
y
well.com/yourhome
Home and Building Control Home and Building Control
Honeywell Honeywell Limited-Honeywell Limitée
1985 Douglas Drive North 35 Dynamic Drive
Golden Valley, MN 55422 Scarborough, Ontario
M1V 4Z9
Printed in U.S.A. on recycled
paper containing at least 10%
post-consumer paper fibers.
AUTOMATIC OPPOSED BLADE DAMPERS (AOBD)