Bosch DHD Series User manual

2
en page 13–16
fr page 17– 30
es página 31 – 44

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몇WARNING
To reduced the risk of fire, electric shock,
or injury to persons, observe the follo-
wing:
A. Installation work and electrical wiring
must be done by authorized person(s)
in accordance with all applicable
codes and standards, including fire-
related construction.
B. Sufficient air is needed for proper
combustion and exhausting of gases
through the flue (chimney) of fuel bur-
ning equipment to prevent backdraf-
ting. Follow the heating equipment
manufacturer’s guideline and safety
standards such as those published by
the National Fired Protection Associa-
tion (NFPA), and the American Society
for Heating, Refrigeration and Air
Conditioning Engineers (ASHRAE),
and the local code authorities.
C. When cutting or drilling into wall or
ceiling, do not damage electrical
wiring and other hidden utilities.
D. Ducted fans must always be vented
to the outdoors.
E. Always unplug or disconnect the
appliance from the power supply
before servicing.
F. This unit is designed for indoor use
only. Use this unit only in the manner
intended by the manufacturer.
G. Make certain the cooktop is appro-
priate for use with a downdraft vent.
H. Not intended for use with professio-
nal-style cooktops.
몇WARNING
For general ventilating use only. Do not
use to exhaust hazardous or explosive
materials and vapors.
To reduce risk of fire and to properly
exhaust air, be sure to duct air outside.
Do not vent exhaust air into spaces wit-
hin walls, ceilings, attics, crawl spaces or
garages.
To reduced the risk of fire, use only metal
duct work.
To reduce the risk of fire, electric shock
and injury to persons, Downdraft must
be used with Internal, Remote or Inline
Blower.
To reduce the risk of fire or electric
shock, do not use the fan with any solid-
state speed control device.
This appliance has been found to be in
compliance with UL 507 Standard for
Electric Fans and CAN/CSA-22.2 No.
113 Canadian Standard for Fans and
Ventilators. It is the responsibility of the
owner and the installer to determine if
additional requirements or standard app-
ly in specific installation.
몇SAFETY INSTRUCTIONS
READ ALL INSTRUCTIONS BEFORE USING THE APPLIANCE.
READ AND SAVE THESE INSTRUCTIONS

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Parts Needed (standard)
GTape Measure
GPhillips Head Screwdriver
GAluminum Duct Tape
GDuctwork (configuration varies depen-
ding on location; See pages 7-12 for fur-
ther information)
GAdditional Sheetmetal screws (as neces-
sary for ductwork installation)
GSaw (or equivalent for cutting counter-
top)
G#8 x 1 1/4” Wood Screws (4)
GPlumb Bob
GWire to reach Remote or Inline Blower
Parts Needed (special)
GSpecial Blower
GTransition Box (for use only with Inline
and Remote Blowers)
GRecirculation Module (used only for recir-
culation applications)
Note: Downdrafts work with these blo-
wers: 600 CFM Integrated, Remote or Inline
Blowers 1000 CFM Remote or Inline Blo-
wers
Parts Supplied
GDowndraft assembly (1)
G#8 Sheetmetal Screws (8)
GBlower Cord Strain Relief (1)
GHardware for brackets on vent (2)
GRemote Blower Pigtail

INTRODUCTION
GENERAL DESCRIPTION
The complete downdraft system consists of
the downdraft, a blower and a transition
box if using an Inline or Remote Blower. A
recirculation module is also available when
ducting to the outside is not preferred or
not possible. (See Fig. 1).
The blower can be either integral (mounted
on the vent intake in the cabinet under the
cooktop), an inline (mounted between the
kitchen and exterior wall anywhere within
the duct line), or a remote (mounted on the
roof or outside wall). When a remote or inli-
ne blower is used, a duct transition is
mounted on the ventilator intake in place of
the integral blower to connect the intake to
the duct work. The duct transition must be
purchased separately.
The integral blower or duct transition can
be mounted in different positions on the
intake to route ductwork to avoid cabinet,
building framing, utilities, etc.
The downdraft system is available in 30-
inch or 36- inch. Intended for non-profes-
sional style cooktops only.
A Recirculation Kit can be purchased sepa-
rately and used in conjunction with the Inte-
gral Blower if ducting to the outside is not a
viable option.
Step 1: Plan the installation
Carefully follow the planning procedures
listed below (See Figure 2). Sketches are
NOT intended to be a replacement for
careful planning.
A. Determine whether a remote, inline, or
integral blower will be used. Remote
and inline blower installation requires
4 wires plus a ground wire to run from
the downdraft to the blower.
B. Make sure that adequate cabinet and
counter space has been provided and
that the intake and blower will be acces-
sible if service is required.
C. Consider that cross drafts created by
adjacent open windows, doors, air con-
ditioning, old heating vents, recessed
ceiling lights, and traffic patterns may
affect performance.
D. For gas cooktop installations make sure
that a minimum 10 square inch opening
is provided in the toe-kick or other cabi-
net area. Inadequate ventilation of the
cabinet below the cooktop may result in
flame outage when operating the vent
system.
E. Provide for air supply or ”make-up
air” to the room where unit will be
installed. If ”make-up air” is not provi-
ded, then problems, such as fireplace
chimney downdrafts, could result.
Fig. 1
5
Downdraft - Unit
Strain Relief
Blower /
Duct Transition Box
(Not Included)

Fig. 2
F. Investigate potential ductwork routes
and choose the shortest possible route
from the unit to an outside wall or to the
roof via an inside wall and attic. For gui-
dance, typical ducting installations are
shown in figures 3 through 6. Installation
in island locations will require under floor
ducting. Peninsula locations usually
require ducting laterally through cabinets
or under cabinet toe spaces. Consider
potential interferences to ductwork from
building framing (floor joists, wall studs,
etc.) and utilities (electrical wiring, water,
gas, or sewer lines, etc).
G. Purchase the necessary ductwork as
needed to duct to the outside or purcha-
se separately the downdraft Recirculati-
on Module if ducting to the outside is not
a viable option.
• Be certain to avoid inter-
ference with gas and elec-
tric supply to cooktop.
• Shelving and drawer depths
are dependent upon cook-
top depth and setback.
6
Dimension depends on Countertop
min.
Vent
Blower / Duct Transition Box
Dimension depends on Cabinet

Figures 3 through 6 are examples of possible ducting
Fig. 3
Remote Blower
Roof Mount Installation
Through wall installation
Fig. 4
Integral Blower
Through Wall Installation
Fig. 5
Integral Blower
Through Wall Installation
Fig. 6
Inline Blower
Through Wall Installations
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Remote
Blower
Remote
Blower Duct
Transition
Box
Collar
Ground
Wall Cap
Duct
Transition
Box
Wall Cap
Ground
Inline
Blower
Integral Blower
BLOWER ROTATED 90° FOR SIDE
CONNECTION
Integral Blower

DUCTWORK INSTALLATION GUIDE-
LINES
GDucting should vent directly outdoors
(not into an attic, underneath the house,
into the garage or into any enclosed
space). A Recirculation Module is availa-
ble when ducting to the outside is not
possible.
GKeep duct runs as short and straight as
possible.
GDuct fittings (elbows and transitions)
reduce air flow efficiency.
GBack to back elbows and ”S” turns give
very poor delivery and are not recom-
mended.
GA short straight length of duct at the inlet
of the remote blower gives the best deli-
very.
GTransition to duct from the integral blo-
wer or remote duct transition as close to
the downdraft as is possible. In order of
preference, use
1st. 10” round duct
2nd. 8” round duct
3rd. 3-1/4” x 14” duct
4th. 7” round duct
5th. 3-1/4” x 10” duct
6th. 6” round duct
GThe use of flexible metal round duct
should only be used when no other duct
fitting exists. Limit use to short lengths
and do not crush when making corners.
GBack to back elbows should be avoided.
DUCTWORK INSTALLATION
GUIDELINES
GWhere local codes permit, plastic pipe
(PVC-schedule 40 pipe or ABS pipe 7”
or 8” diameter) can be used in areas of
high ground moisture and in slab floors
to eliminate future rusting.
GUse only duct work constructed of mate-
rials that are acceptable by the applica-
ble codes. All duct should be 26 gauge
or heavier to minimize flex due to air
flow.
GThe remote blowers require a 10” or 6”
diameter round duct (depending on
model) to match the inlet ring. A transiti-
on is necessary from other duct sizes.
GUse sheet metal screws as required to
support the duct weight, and seal all
joints with duct tape.
GBe certain that the duct work does not
interfere with floor joists or wall studs.
GDo not exhaust more than one vent into
a single duct run.
GCold weather installations should have
an additional backdraft damper installed
to minimize backward cold air flow and a
nonmetallic thermal break to minimize
conduction of outside temperatures as
part of the ductwork. The damper
should be on the cold air side of the
thermal break. The break should be as
close as possible to where the ducting
enters the heated portion of the house.
GAlways use an appropriate roof or wall-
cap with damper. Laundry type wall caps
should never be used.
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Step 2: Prepare Countertop Cutout
Refer to the cooktop installation instructions
for dimensions of cooktop, countertop cut-
out, and cabinet requirements prior to
making any cutouts. Cooktop depth and
countertop back-splash depth can vary
greatly from one to another. These variati-
ons may cause the fit of the downdraft and
cooktop to be tight. A countertop (front
edge) with a raised lip and/or a wide backs-
plash (back edge) may not allow enough flat
countertop for a proper installation.
YCheck that the cooktop is far enough
forward that the downdraft will fit behind
it. Verify all dimensions prior to cutting
the countertops.
Use the physical products to confirm
cutouts whenever possible.
For all installations verify that all cutouts will
clear the inside of the front countertop sup-
port rail, and that the cooktop and vent will
be centered left to right within the cutout.
Also, make certain that the front
and rear cutouts are straight and parallel to
the front edge of countertop and the rear
backsplash and/or wall. Assure that the
side cutouts are square to the front and rear
cutouts.
All illustrations and dimensions are based
on standard 24” deep by 36” high American
style base cabinets with 25” countertops.
When installing laminated or solid surface
countertops such as Surell™ and Corian®,
be sure to follow the countertop manufac-
turer’s instructions regarding minimum
comer radii, reinforcement of corners, etc.
Note: Check boxes as tasks are completed.
For overhead cabinet and cooktop side
clearances consult cooktop Installation
Instructions.
9

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Notes
Dimension ”SB” is the minimum distance from the leading edge of the counter to the leading
edge of the cutout.
Dimension ”BT” is the thickness of backsplash that provides 1/4” clearance between vent
and backsplash. Any backsplash with a curved radius where it meets the counter will require
additional clearance. Thicker backsplashes may be used by increasing the counter and cabi-
net depths.
Set the cooktop into the countertop opening so that the back edge of the cooktop overlaps
the leading edge of the downdraft.
Fig. 7
INSTALLATION WITH COOKTOPS
Wide 31”: 283/8”
Wide 37”: 343/8”
Cutout and Overall Dimensions
Cutout and Overall Dimensions