Honeywell D896 User Manual
D896 Automatic Vent Damper
PRODUCT DATA
FEATURES
• 4-wire plug receptacle.
• Includes wiring harness on select models to fit plug
receptacle onto S86/S8600/S8610/S8620 /L7148/L8148
or Penn Baso G60 or G66.
• For use only on atmospheric type gas-fired furnaces
and boilers equipped with draft hoods.
• Applicable to direct spark ignition (DSI), intermittent
pilot (IP), hot surface ignition (HSI), and standing pilot
systems.
• Ambient temperature range 32°F (0°C) to 150°F (65°C).
• Requires dual automatic combination gas control
valve or two separate single function main gas valves.
GENERAL
D896 Automatic Vent Dampers are used with atmospheric
type, gas-fired equipment to reduce home heating losses by
closing off the vent between heat cycles.
• Interlock switch provides safe operation; burner fires
only with damper in open position.
• 24V operation for easy, low-cost wiring.
• Visual indicator shows damper position.
• 30-second nominal closing time for optimum energy
savings.
• Quiet motor and relay.
• Wiring harnesses available separately to fit a variety of
applications.
Contents
General ............................................................................... 1
Features .............................................................................. 1
Specifications ...................................................................... 2
Ordering Information ........................................................... 2
Application........................................................................... 3
Installation ........................................................................... 4
Settings ............................................................................... 7
Operation and Checkout ..................................................... 7
Troubleshooting ................................................................... 8
Instructions to the Homeowner ........................................... 9
ANSI Standards .................................................................. 10
® U.S. Registered Trademark
Copyright © 1997 Honeywell Inc. • All Rights Reserved
68-0186
D896 AUTOMATIC VENT DAMPER
SPECIFICATIONS
IMPORTANT
The specifications given in this publication do not
include normal manufacturing tolerances. Therefore,
this unit might not exactly match the listed
specifications. 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.
TRADELINE® Models
TRADELINE® models are selected and packaged to provide
ease of stocking, ease of handling, and maximum
replacement value. TRADELINE® model specifications are
the same as those of standard models except as noted below.
TRADELINE® Models Available:
D896 Automatic Vent Damper with 4-wire plug receptacle.
Features:
• TRADELINE® pack with cross reference label.
•8 ft (2.4m), 4-wire cable with mating plug for D896 on one
end and mating plug for 86/S8600/S8610/S8620 or Penn
Baso G60 or G66 plug receptacle on the other end. Both
ends equipped with an outlet box connector.
Standard Models
Models:
D896 Automatic Aluminized Vent Dampers: available in 4
in. to 9 in.
D896 Stainless Steel Vent Dampers: available in 10 in. to
12 in.
Actuator assembly includes motor, relay, interlock switch,
safe-start circuit, and 4-pin plug receptacle. See Fig. 5.
Damper Size:
4, 5, 6, 7, 8, 9, 10, 11 and 12 in. diameter (102, 127, 152,
178, 203, 229, 254, 279 and 305 mm diameter).
Application:
For use only on Underwriters Laboratories Inc. listed and
American Gas Association design certified atmospheric type,
gas-fired furnaces and boilers equipped with a draft hood that
has an outlet area no larger than the damper inlet area. Do
not use with oil-fired furnace or boiler, power burner, or direct
vent furnace or boiler. See Location and Mounting
subsections in Installation section for additional application
considerations.
Maximum Appliance Input Rating:
Nominal Damper
Outlet Diameter
(in.) (mm) (Btuh) (W)
4 102 95,000 27,835
5 127 148,000 43,364
6 152 212,000 62,116
7 178 290,000 84,970
8 203 377,000 110,461
9 229 475,000 139,175
10 254 590,000 173,500
11 280 715,000 210,300
12 305 942,000 277,000
Electrical Ratings:
Power Supply: 24 Vac, 60 Hz.
Power:
Motor: 3.0 VA maximum.
Relay: 0.1 VA maximum.
Contact Rating:
Relay: 10.0A at 250 Vac.
End Switch (Micro): 3.0A at 24 Vac.
Do not use with 120V or millivoltage, self-generating
systems.
Maximum Appliance
Input
ORDERING INFORMATION
When purchasing replacement and modernization products from your TRADELINE® wholesaler or distributor, refer to the
TRADELINE® Catalog or price sheets for complete ordering number.
If you have additional questions, need further information, or would like to comment on our products or services, please write or
phone:
1. Your local Home and Building Control Sales Office (check white pages of your phone directory).
2. Home and Building Control Customer Logistics
Honeywell Inc., 1885 Douglas Drive North
Minneapolis, Minnesota 55422-4386
In Canada—Honeywell Limited/Honeywell Limitée, 35 Dynamic Drive, Scarborough, Ontario M1V 4Z9.
International Sales and Service Offices in all principal cities of the world. Manufacturing in Australia, Canada, Finland, France,
Germany, Japan, Mexico, Netherlands, Spain, Taiwan, United Kingdom, U.S.A.
68-0186
2
D896 AUTOMATIC VENT DAMPER
NOTE: A minimum of a 30 VA transformer must be used
when D896 is installed with S86/S8600/S8610/
S8620.
Electrical Connections:
Four-wire plug receptacle.
Thermostat Anticipator Setting:
0.13A.
Operating Times:
Approximate Damper Opening Time: 30 seconds.
Approximate Damper Closing Time: 30 seconds.
Temperature Ratings:
Minimum Ambient: 32°F (0°C).
Maximum Ambient: 150°F (66°C).
Maximum Furnace Stack: 575°F (302°C).
Shipping: -20°F to +120°F (-29°C to +49°C).
Mounting: See Fig. 2.
Vertical Stack: Any orientation.
Horizontal Stack: The damper actuator must be on the left
or right side of the vent.
IMPORTANT
Do not mount the vent damper with the actuator
above or below the vent.
Dimensions:
See Fig. 1.
Approvals:
American Gas Association Certified:
Certificate No. U-66-2A1.
Canadian Gas Association Design Certified:
1029AVD-9081.
Replacement Parts:
Damper Actuator is field replaceable without removing the
damper assembly from the stack.
197516A Wiring Harness is a 4-wire cable, 8 feet (2.5
meters) long, with D896 mating plug on one end and
mating plug for S86/S8600/S8610/S8620 or Penn Baso
G60 or G66 on the other. An outlet box connector is on
each end.
APPLICATION
The D896 Automatic Vent Damper is a 24 Vac, motorized
stack damper. The damper closes off the furnace or boiler
stack during the heating off-cycle. Use the D896 only on
Underwriters Laboratories Inc. listed and American Gas
Association design certified atmospheric type, gas-fired
furnaces and boilers. The furnaces or boilers must be
equipped with a draft hood that has an outlet area no larger
than the damper inlet area. Do
or boiler, power burner, or direct vent furnace or boiler.
not
use with oil-fired furnace
BODY SIZE
(REF)
4 (102)
5 (127)
6 (152)
7 (178)
8 (203)
9 (229)
10 (254)
11 (279)
12 (305)
DIA. A
in. (mm)
3 15/16 (100)
4 15/16 (125)
5 15/16 (151)
6 15/16 (176)
7 15/16 (202)
8 15/16 (224)
9 15/16 (252)
10 15/16 (278)
11 15/16 (303)
DIA
A
DIA
B
DIM.
G
1
1 (32)
4
DIM.
DIA. C
in. (mm)
4 1/16 (103)
5 1/16 (129)
6 1/16 (154)
7 1/16 (179)
8 1/16 (205)
9 1/16 (230)
10 1/16 (256)
11 1/16 (281)
12 1/16 (306)
H
5 3/16 (132)
5 3/16 (132)
5 3/16 (132)
DIM. D
in. (mm)
1 9/16 (40)
1 9/16 (40)
1 9/16 (40)
3 3/16 (81)
3 3/16 (81)
3 3/16 (81)
DIM. E
in. (mm)
4 1/2 (114)
4 1/2 (114)
4 1/2 (114)
7 1/2 (191)
7 1/2 (191)
7 1/2 (191)
11 1/2 (292)
11 1/2 (292)
11 1/2 (292)
7
3 (98)
8
3
2
4
(70)
7/8 DIA. STD. KNOCKOUT (3)
(ONE, OPPOSITE SIDE)
DIA. B
in. (mm)
4 (102)
5 (127)
6 (152)
7 (178)
8 (203)
9 (229)
10 (254)
11 (279)
12 (305)
Fig. 1. Installation dimensions in in. (mm).
DIM. F
9
4 (116)
16
in. (mm)
13 (330)
13 (330)
13 (330)
DIM. E
DIM. F
6 (152)
6 (152)
6 (152)
9 (229)
9 (229)
9 (229)
DIM.
D
DIM. G
in. (mm)
6 3/4 (171)
7 1/4 (184)
7 3/4 (197)
8 1/4 (209)
8 3/4 (222)
9 1/4 (235)
9 3/4 (248)
10 1/4 (260)
10 3/4 (274)
DIA
C
DIM. H
in. (mm)
8 7/8 (225)
9 7/8 (251)
10 7/8 (276)
11 7/8 (301)
12 7/8 (327)
13 7/8 (352)
14 7/8 (378)
15 7/8 (403)
16 7/8 (428)
M11381
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68-0186
D896 AUTOMATIC VENT DAMPER
IMPORTANT
1. The atmospheric draft hood outlet area must be
smaller or equal to the inlet area of the damper
assembly.
2. If a second gas valve needs to be installed, refer
to the gas valve manufacturer instructions for the
procedure.
3. Using a dual automatic valve combination gas
control or two separate gas valves is required
with the D896.
4. Do not use with L8148 or L8124 with manual/
automatic switch because the switch can override
the safety interlock in the system wiring and
cause a hazardous condition.
5. Do not install on an appliance equipped with an
automatic valve with a manual opener unless the
manual opener is rendered inoperative or the
automatic valve is replaced with an automatic
valve without a manual opener.
6. On retrofit applications, installation identification
label (provided) must be filled out by installer and
applied to outside of cover.
INSTALLATION
When Installing this Product…
1. Read these instructions carefully. Failure to follow them
could cause a hazardous condition.
2. Check the ratings given in the instructions and on the
product to make sure the product is suitable for your
application.
3. Installer must be a trained experienced service
technician. The D896 must be installed in compliance
with local codes or the Natural Gas Installation Code
CAN/CGA-B149.1-B149.1-M91 and CSA C22.2 #3
Electrical Features of Fuel Burning Equipment, or the
National Fuel Gas Code (ANSI Z223.1—NFPA 54) and
the National Electrical Codes (ANSI C1—NFPA70). Use
the ANSI Standard Z21.66-1994 included at the end of
this specification during installation.
NOTE: In Canada, the damper is not certified for
retrofit application. Certification for the
suitability of the damper and appliance
combination must be determined by the
Canadian Gas Association.
4. Install only on an appliance connected to a factory built
chimney or vent that complies with a recognized
standard, or to a masonry or concrete chimney that is
lined with a material acceptable to local code.
5. After installation is complete, check out product
operation as provided in the Checkout section. See
Exhibits A and B at the end of this specification.
CAUTION
Can cause electrical shock or equipment damage.
1. Disconnect power supply.
2. Do
3. Do
not
install within 6 in. (152 mm) of combustible
materials.
not
negate the action of any existing safety or
operational control.
Location
The D896 must be installed
hood. See Fig. 2. Make sure the D896 Motor Actuator is
readily visible and accessible. The damper must be located
where air can freely circulate around it.
WARNING: DO NOT INSTALL THE
VENT DAMPER WITHIN 6 IN. (152 mm)
OF COMBUSTIBLE MATERIAL.
D896 MOTOR
ACTUATOR
VENT PIPE
CURVE
DRAFT
HOOD
FURNACE OR BOILER
2
1
INSTALL THE VENT DAMPER TO SERVICE ONLY THE SINGLE
APPLIANCE FOR WHICH IT IS INTENDED. IF IMPROPERLY
INSTALLED, A HAZARDOUS CONDITION, SUCH AS AN EXPLOSION
OR CARBON MONOXIDE POISONING, COULD RESULT.
DO NOT INSTALL THE VENT DAMPER ON VENT PIPE CURVE.
2
DO NOT RUN WIRES NEAR HIGH TEMPERATURE SURFACES.
3
USE STAND-OFF BRACKETS IF NECESSARY.
Fig. 2. D896 location.
Do
not
install the D896:
— Where the stack temperature is higher than 575°F (284°C).
— Where the ambient temperature is higher than 150°F
(66°C).
— In small or enclosed spaces where temperature can
exceed 150° F (66°C). See WARNING following.
— On the vent pipe curve. See Fig. 2.
1
3
after
the furnace or boiler draft
NO
WATER HEATER
CHIMNEY
M11370
WARNING
Severe illness or death possible. Prevent
explosion or carbon monoxide poisoning.
Overheating can cause premature device failure. Be
sure the D896 is used to control only one appliance.
Mounting
The damper must be mounted as close as possible to the
draft hood without modifying the draft hood. The D896 can be
mounted vertically or horizontally. When vertically mounting
the vent damper, the motor actuator can be in any position.
See Fig. 3.
Horizontal mounting requires the actuator to be located within
45 degrees directly above or directly below the horizontal
diameter of the stack pipe. See Fig. 2 and 3.
68-0186
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