Bosch HDD86051UC is a versatile downdraft ventilation system that seamlessly integrates into your kitchen design with its sleek stainless steel finish and flexible installation options. It features a powerful 600 CFM blower that efficiently removes smoke, odors, and grease, ensuring a cleaner and fresher cooking environment. The downdraft design allows for easy access to your cooktop and provides effective ventilation without obstructing your view.
Bosch HDD86051UC is a versatile downdraft ventilation system that seamlessly integrates into your kitchen design with its sleek stainless steel finish and flexible installation options. It features a powerful 600 CFM blower that efficiently removes smoke, odors, and grease, ensuring a cleaner and fresher cooking environment. The downdraft design allows for easy access to your cooktop and provides effective ventilation without obstructing your view.
Accessories: To purchase Bosch accessories, cleaners & parts please visit www.bosch-home.com/us/store or call 1-800-944-2904 (Mon to Fri 5 am to 6 pm PST, Sat 6 am to 3 pm PST).
Notes: All height, width and depth dimensions are shown in inches. BSH reserves the absolute and unrestricted right to change product materials and specifications, at any time, without
notice. Consult the product’s installation instructions for final dimensional data and other details prior to making cutout.
Warranties: Please see Use & Care manual or Bosch website for statement of limited warranty.
For more information on our entire line of products, go to www.bosch-home.com/us or call 1-800-944-2904
© BSH Home Appliances Corporation. All rights reserved. Bosch is a registered trademark of Robert Bosch GmbH. 09/19
HDD86051UC
Stainless Steel
Sleek, built-in, and
retracts out of sight.
Bosch 36" Downdraft's
flexible design seamlessly
integrates into your
kitchen
Features & Benefits
Beautifully designed to
preserve clean sight lines
when not in use
Quiet at 1.4 sones* on low
speed
Sleek front panel filter
design acts as a guard
against splatters
6 exhaust connections
possible (transition sold
separately)
Recirculation kit for sale
for use in non ducted
applications**
Accessories—Required
Blower (sold separately)
Accessories—Transitions & Blowers
6" side/rear/downward
transition
HDDSTRAN6
8" side/rear/downward
transition
HDDSTRAN8
NOTE: HDDSTRAN6 or HDDSTRAN8 required for side, rear
or downward exhaust applications with inline and remote
blowers.
6" round front plate HDDFTRAN6
8" round front plate HDDFTRAN8
NOTE: HDDFTRAN6 or HDDFTRAN8 required for front
exhaust applications with inline and remote blowers.
Transition for
rectangular duct
HDDSTRAN2
2' rectangular duct HDD2RECTD
NOTE: HDDSTRAN2 needed to attach HDD2RECTD to
downdraft. For use with installation of inline or remote
blower applications.
600 CFM flexible blower DHG602DUC
600 CFM inline blower DHG6015NUC
600 CFM remote blower DHG6023RUC
Accessories—Optional
Recirculation kit HDDREC5UC
Charcoal filter
replacement for
recirculation kit
HDDFILTUC
36" Gas Cooktop Seal Kit
for Downdraft (Required
For Installation With Gas
Cooktops)
HDD6RSP
Trim Kit for 36"
FlameSelect® Gas
Cooktops
HDDTRIM36S
General Properties
Operating mode Convertible:
ducted /
recirculating
Maximum CFM Blower sold
separately
Sones* 1.4 WS / 10.3 HS
Number of speed
settings
3-stage
Motor location External
Damper included No
Grease filter material Aluminum
Grease filter type Multilayer cassette
Duct direction Front, Left, Right,
Rear, Down
Optional blower
required
Yes (600 CFM
options sold
separately)
Technical Details
Volts (V) 120 V
Frequency (Hz) 60 Hz
Plug type 120V-3 prong
Power cord length (in.) 30"
Dimensions & Weight
Overall appliance
dimensions (width
of canopy included)
(HxWxD) (in.)
29 3/8" x 37" x
2 3/4"
Height of the rise (in.) 12"
Diameter of air duct (in.)
internal
8"
Diameter of air duct (in.)
external
6" or 8"
Net weight (lbs) 42 lbs
36" Downdraft
800 Series Downdraft – HDD86051UC
*Sound test performed as per HVI standards at independent lab.
* *Recirculation kit (sold separately) is compatible with electric, induction and FlameSelect Gas cooktops only.
Accessories: To purchase Bosch accessories, cleaners & parts please visit www.bosch-home.com/us/store or call 1-800-944-2904 (Mon to Fri 5 am to 6 pm PST, Sat 6 am to 3 pm PST).
Notes: All height, width and depth dimensions are shown in inches. BSH reserves the absolute and unrestricted right to change product materials and specifications, at any time, without
notice. Consult the product’s installation instructions for final dimensional data and other details prior to making cutout.
Warranties: Please see Use & Care manual or Bosch website for statement of limited warranty.
For more information on our entire line of products, go to www.bosch-home.com/us or call 1-800-944-2904
© BSH Home Appliances Corporation. All rights reserved. Bosch is a registered trademark of Robert Bosch GmbH. 09/19
Installation Details
CLEARANCES
36" Downdraft
800 Series Downdraft – HDD86051UC
PRODUCT
Downdraft
electrical cable
is 30" long
Accessories: To purchase Bosch accessories, cleaners & parts please visit www.bosch-home.com/us/store or call 1-800-944-2904 (Mon to Fri 5 am to 6 pm PST, Sat 6 am to 3 pm PST).
Notes: All height, width and depth dimensions are shown in inches. BSH reserves the absolute and unrestricted right to change product materials and specifications, at any time, without
notice. Consult the product’s installation instructions for final dimensional data and other details prior to making cutout.
Warranties: Please see Use & Care manual or Bosch website for statement of limited warranty.
For more information on our entire line of products, go to www.bosch-home.com/us or call 1-800-944-2904
© BSH Home Appliances Corporation. All rights reserved. Bosch is a registered trademark of Robert Bosch GmbH. 09/19
Installation Details – Cutouts
36" Downdraft
800 Series Downdraft – HDD86051UC
GAS
ELECTRIC AND INDUCTION
Cooktop cutout width
1-7/8" (48)
BT
MIN.
1/2"
(13)
Downdraft cutout width:
30" (762) is 27-1/16" (687)
36" (914) is 33-1/16" (840)
Template
2-1/8" (54)
19-1/8" (486)
22-5/16" (567)
24-11/16" (628)
1-1/16"
(27)
Cooktop cutout width
2-1/4" (57)
BT
MIN.
1/2"
(13)
Downdraft cutout width:
30" (762) is 27-1/16" (687)
36" (914) is 33-1/16" (840)
Template
2-1/8" (54)
19-7/8" - 20"
(505 - 508)
22-11/16" - 22-13/16"
(576 - 579)
25-7/16" - 25-9/16"
(646 - 649)
11/16"
(17)
Accessories: To purchase Bosch accessories, cleaners & parts please visit www.bosch-home.com/us/store or call 1-800-944-2904 (Mon to Fri 5 am to 6 pm PST, Sat 6 am to 3 pm PST).
Notes: All height, width and depth dimensions are shown in inches. BSH reserves the absolute and unrestricted right to change product materials and specifications, at any time, without
notice. Consult the product’s installation instructions for final dimensional data and other details prior to making cutout.
Warranties: Please see Use & Care manual or Bosch website for statement of limited warranty.
For more information on our entire line of products, go to www.bosch-home.com/us or call 1-800-944-2904
© BSH Home Appliances Corporation. All rights reserved. Bosch is a registered trademark of Robert Bosch GmbH. 09/19
36" Downdraft
800 Series Downdraft – HDD86051UC
Accessories – Transitions
6" Round transition enable ducting to be at
sides, rear or below downdraft for flexible
configurations to maximize your kitchen design
Flexible transition design allows for left,
right, rear or downward venting
Front rough-in plate may be used with a
6" round duct or elbow
Ability to use with DHG6015NUC inline or
DHG6023RUC remote blowers
Some blower positions may need deeper
cabinets. See installation guide
NOTE: HDDSTRAN6 or HDDSTRAN8 side/rear/downward transition required
for side, rear or downward exhaust applications with inline and remote
blowers.
8" Round transition enable ducting to be at
sides, rear or below downdraft for flexible
configurations to maximize your kitchen design
Flexible transition design allows for left,
right, rear or downward venting
For DHG602DUC flexible downdraft blower
used as inline installation
Some blower positions may need deeper
cabinets. See installation guide
HDDSTRAN6
6" Side/Rear/
Downward Transition
for Downdraft
HDDSTRAN8
8" Side/Rear/
Downward Transition
for Downdraft
6" Front rough-in plate enable ducting to be
at front of downdraft, for use with inline and
remote blower applications
Front rough-in plate design allows for front
venting
Front rough-in plate may be used with a 6"
round duct or elbow
Ability to use with DHG6015NUC inline or
DHG6023RUC remote blowers
8" Front rough-in plate enable ducting to be
at front of downdraft, for use with inline and
remote blower applications
Front rough-in plate design allows for front
venting
Front rough-in plate may be used with a 8"
round duct or elbow
For DHG602DUC flexible downdraft blower
used as inline installation
HDDFTRAN6
6" Round Front Plate
for Downdraft
HDDFTRAN8
8" Round Front Plate
for Downdraft
NOTE: HDDFTRAN6 or HDDFTRAN8 front plate required for front exhaust
applications with inline and remote blowers.
SIDE/REAR TRANSITIONS FOR DOWNDRAFT ROUND FRONT PLATES FOR DOWNDRAFT
Accessories: To purchase Bosch accessories, cleaners & parts please visit www.bosch-home.com/us/store or call 1-800-944-2904 (Mon to Fri 5 am to 6 pm PST, Sat 6 am to 3 pm PST).
Notes: All height, width and depth dimensions are shown in inches. BSH reserves the absolute and unrestricted right to change product materials and specifications, at any time, without
notice. Consult the product’s installation instructions for final dimensional data and other details prior to making cutout.
Warranties: Please see Use & Care manual or Bosch website for statement of limited warranty.
For more information on our entire line of products, go to www.bosch-home.com/us or call 1-800-944-2904
© BSH Home Appliances Corporation. All rights reserved. Bosch is a registered trademark of Robert Bosch GmbH. 09/19
36" Downdraft
800 Series Downdraft – HDD86051UC
Accessories – Transitions
Rectangular duct transition required to
connect 2’ rectangular duct to downdraft
2' Rectangular duct can be used as extension
to exhaust through a cabinet or wall while
maximizing cabinet storage space
Duct can be used as an extension to
exhaust through a cabinet or wall
May be attached to sides or rear of
downdraft housing
HDDRECTRN transition needed to connect
HDD2RECTD to downdraft housing
For use with remote or inline blowers
HDD2RECTD
2' Rectangular Duct
Downdraft
TRANSITION FOR RECTANGULAR DUCT FOR DOWNDRAFT 2' RECTANGULAR DUCT FOR DOWNDRAFT
HDDSTRAN2
Transition for
Rectangular Duct
for Downdraft
Accessories: To purchase Bosch accessories, cleaners & parts please visit www.bosch-home.com/us/store or call 1-800-944-2904 (Mon to Fri 5 am to 6 pm PST, Sat 6 am to 3 pm PST).
Notes: All height, width and depth dimensions are shown in inches. BSH reserves the absolute and unrestricted right to change product materials and specifications, at any time, without
notice. Consult the product’s installation instructions for final dimensional data and other details prior to making cutout.
Warranties: Please see Use & Care manual or Bosch website for statement of limited warranty.
For more information on our entire line of products, go to www.bosch-home.com/us or call 1-800-944-2904
© BSH Home Appliances Corporation. All rights reserved. Bosch is a registered trademark of Robert Bosch GmbH. 09/19
36" Downdraft
800 Series Downdraft – HDD86051UC
Accessories – 600 CFM Blowers
600 CFM inline blower
For use with Bosch downdrafts
Inline blowers can be mounted remotely to
minimize blower noise in the cooking area
Designed to be mounted inline with the
ducting installation.
Blower is mounted on roof of exterior wall
depending on application needs.
6" transition required
600 CFM remote blower
For use with Bosch downdrafts
Can be mounted on the exterior of the home
to minimize noise in the cooking area.
Blower is mounted on roof of exterior wall
depending on application needs.
6" transition required
DHG6015NUC
600 CFM Inline
Blower
DHG6023RUC
600 CFM Remote
Blower
600 CFM flexible blower can mount to
downdraft or be used as an inline blower,
and can be rotated to exhaust downward
or to sides
Capable up to 600 CFM in performance
Blower is able to mount to downdraft or
be used as an inline blower
Blower can be rotated to exhaust
downward or toward sides
Additional accessories may be required
for installation, see manual
DHG602DUC
600 CFM Flexible
Integral Blower –
HDD Downdrafts
Accessories: To purchase Bosch accessories, cleaners & parts please visit www.bosch-home.com/us/store or call 1-800-944-2904 (Mon to Fri 5 am to 6 pm PST, Sat 6 am to 3 pm PST).
Notes: All height, width and depth dimensions are shown in inches. BSH reserves the absolute and unrestricted right to change product materials and specifications, at any time, without
notice. Consult the product’s installation instructions for final dimensional data and other details prior to making cutout.
Warranties: Please see Use & Care manual or Bosch website for statement of limited warranty.
For more information on our entire line of products, go to www.bosch-home.com/us or call 1-800-944-2904
© BSH Home Appliances Corporation. All rights reserved. Bosch is a registered trademark of Robert Bosch GmbH. 09/19
Accessories – Optional
36" Downdraft
800 Series Downdraft – HDD86051UC
HDDFILTUC
Charcoal Filter
Replacement for
Recirculation Kit
for Downdraft
Maintain performance of Bosch downdraft
recirculation kit with timely replacement of
charcoal filter to capture and filter odors
Replacement charcoal filter for HDDREC5UC
recirculation kit
Quality charcoal filter effectively captures
and filters odors
Replace charcoal filter every 6 months
depending on usage
36" gas cooktop seal kit required for installation
with 36" gas cooktops
Includes trim, seal, metal grill, and fasteners
Required for installation with gas cooktops
HDD6RSP
36" Gas Cooktop Seal
Kit for Downdraft
Installation Details
When ducting to the exterior is not feasible,
downdraft recirculation kit allows filtered air to
reenter the kitchen while cooking
When ducting is not feasible, kit eliminates
need to exhaust outside
Air is filtered through charcoal filter, then
re-enters kitchen
Includes recirculation module, filter and
metal grille vent plate
Designed to work with both 30" and 36"
bosch downdrafts, HDD series
Use with induction/electric cooktops only
HDDREC5UC
Recirculation Kit
for Downdraft
36" trim kit for installation with
36" FlameSelect® gas cooktops
Includes trim kit and installation tool
Required for installation with 36"
FlameSelect® gas cooktops
HDDTRIM36S
Trim Kit for 36"
FlameSelect® Gas
Cooktops
Accessories: To purchase Bosch accessories, cleaners & parts please visit www.bosch-home.com/us/store or call 1-800-944-2904 (Mon to Fri 5 am to 6 pm PST, Sat 6 am to 3 pm PST).
Notes: All height, width and depth dimensions are shown in inches. BSH reserves the absolute and unrestricted right to change product materials and specifications, at any time, without
notice. Consult the product’s installation instructions for final dimensional data and other details prior to making cutout.
Warranties: Please see Use & Care manual or Bosch website for statement of limited warranty.
For more information on our entire line of products, go to www.bosch-home.com/us or call 1-800-944-2904
© BSH Home Appliances Corporation. All rights reserved. Bosch is a registered trademark of Robert Bosch GmbH. 09/19
36" Downdraft
800 Series Downdraft – HDD86051UC
Flexible Blower Installation – Front Exhaust Example
* For only front downward ducting applications, electrical panel must be remotely mounted. Electrical panel can still be remotely mounted in other exhaust configurations if desired. Electrical
panel interconnect cable length is 5-ft. long.
Application
• Flexible blower attached can rotate for left, right or downward discharge
• Front downward application with flexible blower
• Requires space under floor line for ductwork*
• Can be used with optional Recirculation Kit, sold separately
• Elbow, ductwork, blower support structure frame not included
Required Blower
Optional Accessories
HDDREC5UC
Recirculation Kit for Downdraft
When ducting to the exterior is not
feasible, downdraft recirculation
kit allows filtered air to reenter the
kitchen while cooking
HDDFILTUC
Charcoal Filter Replacement for Recirculation Kit
for Downdraft
Maintain performance of Bosch downdraft
recirculation kit with timely replacement of
charcoal filter to capture and filter odors
HDD6RSP
36" Gas Cooktop Seal Kit for Downdraft
36" gas cooktop seal kit required for installation
with 36" gas cooktops
DHG602DUC
600 CFM Flexible Integral Blower
600 CFM flexible blower can mount
to downdraft or be used as an
inline blower, and can be rotated to
exhaust downward or to sides
Accessories: To purchase Bosch accessories, cleaners & parts please visit www.bosch-home.com/us/store or call 1-800-944-2904 (Mon to Fri 5 am to 6 pm PST, Sat 6 am to 3 pm PST).
Notes: All height, width and depth dimensions are shown in inches. BSH reserves the absolute and unrestricted right to change product materials and specifications, at any time, without
notice. Consult the product’s installation instructions for final dimensional data and other details prior to making cutout.
Warranties: Please see Use & Care manual or Bosch website for statement of limited warranty.
For more information on our entire line of products, go to www.bosch-home.com/us or call 1-800-944-2904
© BSH Home Appliances Corporation. All rights reserved. Bosch is a registered trademark of Robert Bosch GmbH. 09/19
36" Downdraft
800 Series Downdraft – HDD86051UC
Flexible Blower Installation – Front Exhaust with Flexible Blower
Used as an Inline Option Example
Application
• Side exhaust with flexible blower used as inline option if ducting is more
convenient with this configuration
• Requires at least 18" of clearance to fit the blower and transition
• Blower must be accessible for maintenance
• Elbow, ductwork, blower support structure frame not included
DHG602DUC
600 CFM Flexible Integral Blower
600 CFM flexible blower can mount
to downdraft or be used as an
inline blower, and can be rotated to
exhaust downward or to sides
Required Blower
Required Accessories
HDDFTRAN8
8" Round Front Plate for
Downdraft
8" Front rough-in plate
enable ducting to be at front
of downdraft, for use with
inline and remote blower
applications
NOTE: HDDFTRAN8 front plate
required for front exhaust
applications with inline and
remote blowers.
Optional Accessories
HDD6RSP
36" Gas Cooktop Seal Kit for Downdraft
36" gas cooktop seal kit required for installation
with 36" gas cooktops
NOTE: Some applications may require deeper cabinets. Side and rear exhaust require at least 18" of clearance to fit the blower and / or ductwork. Refer to installation instructions.
Accessories: To purchase Bosch accessories, cleaners & parts please visit www.bosch-home.com/us/store or call 1-800-944-2904 (Mon to Fri 5 am to 6 pm PST, Sat 6 am to 3 pm PST).
Notes: All height, width and depth dimensions are shown in inches. BSH reserves the absolute and unrestricted right to change product materials and specifications, at any time, without
notice. Consult the product’s installation instructions for final dimensional data and other details prior to making cutout.
Warranties: Please see Use & Care manual or Bosch website for statement of limited warranty.
For more information on our entire line of products, go to www.bosch-home.com/us or call 1-800-944-2904
© BSH Home Appliances Corporation. All rights reserved. Bosch is a registered trademark of Robert Bosch GmbH. 09/19
36" Downdraft
800 Series Downdraft – HDD86051UC
Flexible Blower Installation – Side Exhaust Example
Application
• Side exhaust option if ducting is more convenient with this configuration
• Requires at least 18" of clearance to fit the blower and transition
• Can be used with optional Recirculation Kit, sold separately
• Elbow, ductwork, blower support structure frame not included
DHG602DUC
600 CFM Flexible Integral
Blower
600 CFM flexible blower can
mount to downdraft or be used
as an inline blower, and can be
rotated to exhaust downward
or to sides
Required Blower
NOTE: Some applications may require deeper cabinets. Side and rear exhaust require at least 18" of clearance to fit the blower and / or ductwork. Refer to installation instructions.
Required Accessories
Optional Accessories
HDDREC5UC
Recirculation Kit for Downdraft
When ducting to the exterior is not
feasible, downdraft recirculation kit
allows filtered air to reenter
the kitchen while cooking
HDDFILTUC
Charcoal Filter Replacement for Recirculation Kit
for Downdraft
Maintain performance of Bosch downdraft
recirculation kit with timely replacement of
charcoal filter to capture and filter odors
HDD6RSP
36" Gas Cooktop Seal Kit for Downdraft
36" gas cooktop seal kit required for installation
with 36" gas cooktops
HDDSTRAN8
8" Side/Rear/Downward
Transition for Downdraft
8" Round transition enable
ducting to be at sides,
rear or below downdraft
for flexible configurations
to maximize your kitchen
design
NOTE: HDDSTRAN8 side/rear/
downward transition required for
side, rear or downward exhaust
applications with inline and
remote blowers.
Left Side Exhaust
Right Side Exhaust
Accessories: To purchase Bosch accessories, cleaners & parts please visit www.bosch-home.com/us/store or call 1-800-944-2904 (Mon to Fri 5 am to 6 pm PST, Sat 6 am to 3 pm PST).
Notes: All height, width and depth dimensions are shown in inches. BSH reserves the absolute and unrestricted right to change product materials and specifications, at any time, without
notice. Consult the product’s installation instructions for final dimensional data and other details prior to making cutout.
Warranties: Please see Use & Care manual or Bosch website for statement of limited warranty.
For more information on our entire line of products, go to www.bosch-home.com/us or call 1-800-944-2904
© BSH Home Appliances Corporation. All rights reserved. Bosch is a registered trademark of Robert Bosch GmbH. 09/19
36" Downdraft
800 Series Downdraft – HDD86051UC
Flexible Blower Installation – Side Exhaust with Slim 2' Rectangular Duct Example
Application
• Side exhaust option if ducting is more convenient with this configuration
• A slim 2' rectangular duct is available to place flexible blower in areas such as
unused corner in island or peninsula applications
• Can be used with optional Recirculation Kit, sold separately
• Elbow, ductwork, blower support structure frame not included
DHG602DUC
600 CFM Flexible Integral
Blower
600 CFM flexible blower can
mount to downdraft or be used
as an inline blower, and can be
rotated to exhaust downward
or to sides
Required Blower
NOTE: Some applications may require deeper cabinets. Side and rear exhaust require at least 18" of clearance to fit the blower and / or ductwork. Refer to installation instructions.
Required Accessories
Optional Accessories
HDD2RECTD
2' Rectangular
Duct Downdraft
2' Rectangular duct can
be used as extension to
exhaust through a cabinet
or wall while maximizing
cabinet storage space
HDDSTRAN2
Transition for Rectangular
Duct for Downdraft
Rectangular duct transition
required to connect
2' rectangular duct to
downdraft
HDDSTRAN8
8" Side/Rear/Downward
Transition for Downdraft
8" Round transition enable
ducting to be at sides,
rear or below downdraft
for flexible configurations
to maximize your kitchen
design
NOTE: HDDSTRAN8 side/rear/
downward transition required
for side, rear or downward
exhaust applications with
inline and remote blowers.
HDDREC5UC
Recirculation Kit for Downdraft
When ducting to the exterior is not
feasible, downdraft recirculation kit
allows filtered air to reenter
the kitchen while cooking
HDDFILTUC
Charcoal Filter Replacement for Recirculation
Kit for Downdraft
Maintain performance of Bosch downdraft
recirculation kit with timely replacement
of charcoal filter to capture and filter odors
HDD6RSP
36" Gas Cooktop Seal Kit for Downdraft
36" gas cooktop seal kit required for installation
with 36" gas cooktops
Accessories: To purchase Bosch accessories, cleaners & parts please visit www.bosch-home.com/us/store or call 1-800-944-2904 (Mon to Fri 5 am to 6 pm PST, Sat 6 am to 3 pm PST).
Notes: All height, width and depth dimensions are shown in inches. BSH reserves the absolute and unrestricted right to change product materials and specifications, at any time, without
notice. Consult the product’s installation instructions for final dimensional data and other details prior to making cutout.
Warranties: Please see Use & Care manual or Bosch website for statement of limited warranty.
For more information on our entire line of products, go to www.bosch-home.com/us or call 1-800-944-2904
© BSH Home Appliances Corporation. All rights reserved. Bosch is a registered trademark of Robert Bosch GmbH. 09/19
36" Downdraft
800 Series Downdraft – HDD86051UC
Flexible Blower Installation – Rear Exhaust Example
Application
• Rear exhaust option is possible if ducting is more convenient with this
configuration
• Requires at least 18" of clearance to fit the blower and transition
• Blower must be accessible for maintenance
• Can be used with optional Recirculation Kit, sold separately
• Elbow, ductwork, blower support structure frame not included
DHG602DUC
600 CFM Flexible Integral Blower
600 CFM flexible blower can mount
to downdraft or be used as an
inline blower, and can be rotated to
exhaust downward or to sides
Required Blower
Required Accessories
HDDSTRAN8
8" Side/Rear/Downward
Transition for Downdraft
8" Round transition enable
ducting to be at sides, rear or
below downdraft for flexible
configurations to maximize
your kitchen design
NOTE: HDDSTRAN8 side/rear/
downward transition required for
side, rear or downward exhaust
applications with inline and
remote blowers.
Optional Accessories
HDDREC5UC
Recirculation Kit for Downdraft
When ducting to the exterior is not
feasible, downdraft recirculation kit
allows filtered air to reenter
the kitchen while cooking
HDDFILTUC
Charcoal Filter Replacement for Recirculation Kit
or Downdraft
Maintain performance of Bosch downdraft
recirculation kit with timely replacement of charcoal
filter to capture and filter odors
HDD6RSP
36" Gas Cooktop Seal Kit for Downdraft
36" gas cooktop seal kit required for installation
with 36" gas cooktops
NOTE: Some applications may require deeper cabinets. Side and rear exhaust require at least 18" of clearance to fit the blower and / or ductwork. Refer to installation instructions.
Accessories: To purchase Bosch accessories, cleaners & parts please visit www.bosch-home.com/us/store or call 1-800-944-2904 (Mon to Fri 5 am to 6 pm PST, Sat 6 am to 3 pm PST).
Notes: All height, width and depth dimensions are shown in inches. BSH reserves the absolute and unrestricted right to change product materials and specifications, at any time, without
notice. Consult the product’s installation instructions for final dimensional data and other details prior to making cutout.
Warranties: Please see Use & Care manual or Bosch website for statement of limited warranty.
For more information on our entire line of products, go to www.bosch-home.com/us or call 1-800-944-2904
© BSH Home Appliances Corporation. All rights reserved. Bosch is a registered trademark of Robert Bosch GmbH. 09/19
Flexible Blower Installation – Downward Exhaust Example
Application
• Downward exhaust option if ducting is more convenient with this
configuration
• Requires at least 18" of clearance to fit the blower and transition
• Can be used with optional Recirculation Kit, sold separately
• Elbow, ductwork, blower support structure frame not included
• Blower must be accessible for maintenance
• Can also be installed with inline and remote blowers
Required Accessories
DHG602DUC
600 CFM Flexible Integral
Blower
600 CFM flexible blower can
mount to downdraft or be used
as an inline blower, and can be
rotated to exhaust downward
or to sides
Required Blower
Optional Accessories
HDDREC5UC
Recirculation Kit for Downdraft
When ducting to the exterior is not
feasible, downdraft recirculation kit
allows filtered air to reenter
the kitchen while cooking
HDDFILTUC
Charcoal Filter Replacement for Recirculation Kit
for Downdraft
Maintain performance of Bosch downdraft
recirculation kit with timely replacement of
charcoal filter to capture and filter odors
HDD0RSP
30" Gas Cooktop Seal Kit for Downdraft
30" gas cooktop seal kit required for installation
with 30" gas cooktops
HDDSTRAN8
8" Side/Rear/Downward
Transition for Downdraft
8" Round transition enable
ducting to be at sides,
rear or below downdraft
for flexible configurations
to maximize your kitchen
design
NOTE: HDDSTRAN8 side/rear/
downward transition required for
side, rear or downward exhaust
applications with inline and
remote blowers.
36" Downdraft
800 Series Downdraft – HDD86051UC
Accessories: To purchase Bosch accessories, cleaners & parts please visit www.bosch-home.com/us/store or call 1-800-944-2904 (Mon to Fri 5 am to 6 pm PST, Sat 6 am to 3 pm PST).
Notes: All height, width and depth dimensions are shown in inches. BSH reserves the absolute and unrestricted right to change product materials and specifications, at any time, without
notice. Consult the product’s installation instructions for final dimensional data and other details prior to making cutout.
Warranties: Please see Use & Care manual or Bosch website for statement of limited warranty.
For more information on our entire line of products, go to www.bosch-home.com/us or call 1-800-944-2904
© BSH Home Appliances Corporation. All rights reserved. Bosch is a registered trademark of Robert Bosch GmbH. 09/19
36" Downdraft
800 Series Downdraft – HDD86051UC
Required Accessories
Optional Accessories
HDDREC5UC
Recirculation Kit for Downdraft
When ducting to the exterior is not
feasible, downdraft recirculation
kit allows filtered air to reenter
the kitchen while cooking
HDDFILTUC
Charcoal Filter Replacement for Recirculation Kit
for Downdraft
Maintain performance of Bosch downdraft
recirculation kit with timely replacement
of charcoal filter to capture and filter odors
HDD6RSP
36" Gas Cooktop Seal Kit for Downdraft
36" gas cooktop seal kit required for
installation with 36" gas cooktops
Flexible Blower Installation – Recirculation Example
Application
• Allows for non-ducted downdraft installation by eliminating the need to
exhaust to the exterior of the home
• Mount to toe kick or base of a cabinet and attach directly to flexible blower
• Recirculation module and metal grill vent plate placement can be rotated for
flexible exhaust placement
• Elbow, ductwork, blower support structure frame not included
DHG602DUC
600 CFM Flexible Integral
Blower
600 CFM flexible blower can
mount to downdraft or be used
as an inline blower, and can be
rotated to exhaust downward
or to sides
Required Blower
Page 5
INSTALL THE
RECIRCULATION BOX
1. Cut opening in cabinet base.
• Size: 14 1/2” (368) x 15” (380)
• Orientation depends upon direction of exhaust.
• Double-check that blower outlet and recirculation box inlet will align.
2. Temporarily place recirculation box into opening in cabinet base.
• Rotate back of box up slightly and insert exhaust end down into opening.
• Mark location of exhaust opening in toe space, rear, or side of cabinet.
3. Remove recirculation box from opening.
4. Cut exhaust opening.
• Size: 3 1/2” (89) x 14 1/4” (362)
• This opening will be covered with decorative grille.
5. Replace recirculation box into opening in cabinet base.
• If necessary, attach a length 3 1/4” (83) x 14” (356) duct extension (not
included) to extend from recirculation box outlet to decorative grille
location.
• Seal the duct connection(s) with aluminum tape to make them secure and
air tight. Do not use duct tape.
• Use 6 - #10 x .625” screws to secure recirculation box to cabinet base.
6. Install blower.
• See blower instructions.
• Use 8” (203) round duct to connect blower exhaust to recirculation box
inlet
• Seal the duct connections with aluminum tape to make them secure and
air tight. Do not use duct tape.
• Drill 1/8” (3) pilot holes through top of recirculation box and attach legs
to recirculation box with 4 - #8 x .375” screws.
7. Install decorative grille.
• Use screws provided.
8.
•
•
•
CUSTOM-MADE
DECORATIVE GRILLE
You can make your own decorative grille. Use the decorative grille in
this kit as a template for the overall size and mounting hole locations.
The grille opening pattern is up to you.
2
min.
FILTER REPLACEMENT
6 months. However, this may vary, depending upon the type and
amount of cooking you do. Call customer service or your local
ALIGN BLOWER
OUTLET WITH
RECIRCULATION
BOX INLET
METAL 8” ROUND DUCT
(per local codes)
EXHAUST THROUGH
CABINET FRONT (TOE KICK)
BLOWER
EXHAUST THROUGH
CABINET SIDE
EXHAUST THROUGH
CABINET BACK
Blower mounted
to downdraft using
mounting legs.
BLOWER
Blower mounted to
framing in remote
location - using
mounting brackets.
MOUNTING
LEGS
Blower outlet and
recirculation box
inlet must align.
(See below.)
OPTIONAL REMOTE BLOWER MOUNT
EXHAUST
THROUGH
CABINET
BACK
EXHAUST
THROUGH
CABINET
SIDE
15”
(380)
14 1/2”
(368)
3 1/2" (89) x 14 1/4" (362)
EXHAUST OPENING
DECORATIVE
GRILLE
15"
(380)
14 1/2"
(368)
3 1/2" (89) x 14 1/4" (362)
EXHAUST OPENING
DECORATIVE
GRILLE
Measurements
in inches (mm).
DIMENSIONS
4 1/2”
(114)
16”
(406)
8”
(203)
6 1/2”
(165)
12 1/4”
(311)
17 1/2”
(445)
16”
(406)
14”
(356)
16”
(406)
15”
(380)
3 1/4”
(83)
3 3/4
”
(95)
Measurements
in inches (mm).
Page 5
INSTALL THE
RECIRCULATION BOX
1. Cut opening in cabinet base.
• Size: 14 1/2” (368) x 15” (380)
• Orientation depends upon direction of exhaust.
• Double-check that blower outlet and recirculation box inlet will align.
2. Temporarily place recirculation box into opening in cabinet base.
• Rotate back of box up slightly and insert exhaust end down into opening.
• Mark location of exhaust opening in toe space, rear, or side of cabinet.
3. Remove recirculation box from opening.
4. Cut exhaust opening.
• Size: 3 1/2” (89) x 14 1/4” (362)
• This opening will be covered with decorative grille.
5. Replace recirculation box into opening in cabinet base.
• If necessary, attach a length 3 1/4” (83) x 14” (356) duct extension (not
included) to extend from recirculation box outlet to decorative grille
location.
• Seal the duct connection(s) with aluminum tape to make them secure and
air tight. Do not use duct tape.
• Use 6 - #10 x .625” screws to secure recirculation box to cabinet base.
6. Install blower.
• See blower instructions.
• Use 8” (203) round duct to connect blower exhaust to recirculation box
inlet
• Seal the duct connections with aluminum tape to make them secure and
air tight. Do not use duct tape.
• Drill 1/8” (3) pilot holes through top of recirculation box and attach legs
to recirculation box with 4 - #8 x .375” screws.
7. Install decorative grille.
• Use screws provided.
8.
•
•
•
CUSTOM-MADE
DECORATIVE GRILLE
You can make your own decorative grille. Use the decorative grille in
this kit as a template for the overall size and mounting hole locations.
The grille opening pattern is up to you.
2
min.
FILTER REPLACEMENT
6 months. However, this may vary, depending upon the type and
amount of cooking you do. Call customer service or your local
ALIGN BLOWER
OUTLET WITH
RECIRCULATION
BOX INLET
METAL 8” ROUND DUCT
(per local codes)
EXHAUST THROUGH
CABINET FRONT (TOE KICK)
BLOWER
EXHAUST THROUGH
CABINET SIDE
EXHAUST THROUGH
CABINET BACK
Blower mounted
to downdraft using
mounting legs.
BLOWER
Blower mounted to
framing in remote
location - using
mounting brackets.
MOUNTING
LEGS
Blower outlet and
recirculation box
inlet must align.
(See below.)
OPTIONAL REMOTE BLOWER MOUNT
EXHAUST
THROUGH
CABINET
BACK
EXHAUST
THROUGH
CABINET
SIDE
15”
(380)
14 1/2”
(368)
3 1/2" (89) x 14 1/4" (362)
EXHAUST OPENING
DECORATIVE
GRILLE
15"
(380)
14 1/2"
(368)
3 1/2" (89) x 14 1/4" (362)
EXHAUST OPENING
DECORATIVE
GRILLE
Measurements
in inches (mm).
DIMENSIONS
4 1/2”
(114)
16”
(406)
8”
(203)
6 1/2”
(165)
12 1/4”
(311)
17 1/2”
(445)
16”
(406)
14”
(356)
16”
(406)
15”
(380)
3 1/4”
(83)
3 3/4
”
(95)
Measurements
in inches (mm).
-
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-
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-
7
-
8
-
9
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Bosch HDD86051UC is a versatile downdraft ventilation system that seamlessly integrates into your kitchen design with its sleek stainless steel finish and flexible installation options. It features a powerful 600 CFM blower that efficiently removes smoke, odors, and grease, ensuring a cleaner and fresher cooking environment. The downdraft design allows for easy access to your cooktop and provides effective ventilation without obstructing your view.
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