Bosch HDS252U, HDS256U, HDS255U User Manual
Freestanding Dual Fuel Range
Household Appliances
Cuisinière à combustion jumelée amovible
Estufa Autoestable de dos Combustibles
Installation Instructions
Instructions d’installation
Instrucciones de Installación
for Models: HDS252U, HDS255U, HDS256U
PLEASE READ ENTIRE INSTRUCTIONS BEFORE PROCEEDING.
IMPORTANT: Save these instructions for the local electrical inspector’s use.
INSTALLER: Please leave these Installation Instructions with this unit for
the owner.
OWNER: Please retain these instructions for future reference.
ATTENTION PROPANE USERS: DO NOT ATTEMPT TO CONNECT THIS RANGE TO
PROPANE USING THE NATURAL GAS CONNECTION DESCRIBED IN THIS MANUAL
Please see the “LP Conversion Instructions” included in this literature kit to convert this
range for propane use.
IMPORTANT SAFETY INSTRUCTIONS
!
Please read all instructions before using this appliance.
Table of Contents
Safety Instructions and Applicable Codes ........................................................................... 1, 2
Install Ventilation, Prepare Cabinets and Install Anti-Tip Bracket ............................................... 3
Connect Electric ............................................................................................................... 4, 5
Connect Gas ....................................................................................................................... 6
Test the Installation ............................................................................................................. 7
• Remove all tape and packaging before using the range.
Destroy the carton and plastic bags after unpacking
the range. Never allow children to play with packaging
material.
Install only per these installation instructions.
Ask your dealer to recommend a qualified technician and an
authorized repair service. Know how to disconnect the power to
the range at the circuit breaker or fuse box in and the gas supply
at the shutoff in case of an emergency.
Note: This range is not designed for manufactured (mobile)
home installation.
• User servicing - Do not repair or replace any part of the
appliance unless specifically recommended in the manuals. All
other servicing should be done by a qualified technician. This
may reduce the risk of personal injury and damage to the range.
PARTS PROVIDED
Anti-Tip Bracket
TOOLS AND PARTS NEEDED:
• Range Power Supply Cord Kit (240V - 30 Amps)
• Standard Measuring Tape
• Phillips Head Screwdriver
• 1-1/4” Wrench
• Pencil
• T-20 Torx Screwdriver
• 3/8” Nut Driver
• Screws (2) and Anchors (2) for Anti-tip Bracket (Style will
vary depending on mounting surface)
• Pipe Wrench (2)
• Teflon® Tape* or Pipe Joint Compound (Appropriate for use
with LP gas and Natural gas)
• Channel Lock Pliers
• Gas Leak Test Solution
• Level
• Drill and Drill Bit
• Gas Supply Line (Flexible Metal Appliance Connector or Rigid
Pipe)
• Gas Shut Off Valve (If not already present)
• Gloves and Safety Goggles
WARNING
If the information in this manual is not followed
exactly, a fire or explosion may result causing
property damage, personal injury or death.
Do not store or use combustible materials,
gasoline or other flammable vapors and
liquids in the vicinity of this or any other
appliance.
WHAT TO DO IF YOU SMELL GAS:
Do not try to light any appliance.
Do not touch any electrical switch.
Do not use any phone in your
building.
Immediately call your gas supplier
from a neighbor’s phone. Follow the
gas supplier’s instructions.
If you cannot reach your gas supplier,
call the fire department.
Installation and service must be performed by a
qualified installer, authorized service agency or
the gas supplier.
CAUTION
Do not use the oven or warming drawer (if equipped) for storage.
WARNING
!
Improper installation, adjustment, alteration, service or
maintenance can cause injury or property damage.
Refer to this manual. For assistance or additional
information consult a qualified installer, service agency,
manufacturer or the gas supplier.
Page 1
* Teflon is a registered trademark of DuPont
IMPORTANT SAFETY INSTRUCTIONS
!
WARNING
RANGE TIPPING HAZARD
• All ranges can tip and injury could result. To prevent
accidental tipping of the range, attach it to the floor by
installing the Anti-Tip Device supplied.
• A risk of tip-over may exist if the appliance is not
installed in accordance with these instructions.
• Install anti-tip device packed with range.
• If the range is pulled away from the wall for
cleaning, service, or any other reason, ensure that the
Anti-Tip Device is properly reengaged when the range
is pushed back against the wall. In the event of abnormal
usage (such as a person standing, sitting, or leaning on
an open door), failure to take this precaution could
result in tipping of the range. Personal injury might
result from spilled hot liquids or from the range itself.
WARNING
Before installing, turn power OFF at
the service panel. Lock service panel
to prevent power from being turned
ON accidentally.
CAUTION
Unit is heavy and requires at least
two persons or proper equipment
to move.
IMPORTANT:
LOCAL CODES VARY. INSTALLATION, ELECTRICAL
CONNECTIONS AND GROUNDING MUST COMPLY WITH ALL
APPLICABLE CODES.
• Proper Installation - Be sure your appliance is properly
installed and grounded by a qualified technician in accordance
with the National Electrical Code ANSI/NFPA No. 7 latest edition
and local electrical code requirements.
• This appliance has been tested in accordance with ANSI Z21.1,
Standard for Household Cooking Appliances (USA) and in accordance with CAN 1.1-M81 Interim Reqt #58 Domestic Gas
Cooktops (CANADA).(In Canada, installation must be in accordance with the CAN 1-B149.1 and .2 Installation Codes for Gas
Burning Appliances and/or local codes)
• It is recommended that the range be used in conjunction with
a suitable ventilation system.
The following must be met when testing supply piping system:
a) The appliance and its individual shut-off valve must
be disconnected from the gas supply piping system
at test pressures in excess of 1/2 psig (3.5 kPa).
b) The appliance must be isolated from the gas supply
piping system by closing its individual manual shutoff valve during any pressure testing of the gas supply piping system at test pressures equal to or less
than 1/2 psig (3.5 kPa).
Avoid drafts across the range. They will obstruct ventilation and
combustion.
For Massachusetts Installations:
1. Installation must be performed by a qualified or
lisensed contractor, plumber or gas fitter qualified or
licensed by the state, province or region where this
appliance is being installed.
2. Shut-off valve must be a “T” handle gas cock.
3. Flexible gas connector must not be longer than 36
inches.
HIGH ALTITUDE INSTALLATION NOTE:
For installation at altitudes above 2,000 ft., contact Bosch
Service (800-994-2904) for special instructions.
• Never modify or alter the construction of a range by removing
leveling legs, panels, wire covers, anti-tip brackets/screws, or any
other part of the product.
• Notice: DO NOT LIFT RANGE BY DOOR HANDLE. Remove the
door for easier handling and installation. See Section ‘Removing
Oven Door’ in Use and Care manual.
Page 2
Steps 1, 2, and 3: Install Ventilation, Prepare Cabinets, Install Anti-Tip Bracket
1. Install Ventilation
It is strongly recommended to install a hood above this range. For
most kitchens with a wall mounted hood, a certified hood rating
of not less than 350 CFM is recommended. Bosch hoods rated at
350 CFM or more when operated on high meet the above
requirement and are recommended for this purpose. The range
hood must be installed according to instructions furnished with
the hood.
2. Prepare Cabinets (See Figure 1)
This unit can be installed near adjacent walls and projecting
surfaces constructed of combustible materials. There must be
a minimum clearance of 30 inches between the top of the
cooking surface and the bottom of an unprotected wood or
metal cabinet; or 24 inches when bottom of wood or metal
cabinet is protected by not less than 1/4" of flame retardant
material covered with not less than No. 28 MSG sheet metal,
0.015 inch stainless steel or 0.024 inch aluminum or copper.
Zero clearance from unit walls to adjacent vertical combustible
walls is permitted on rear, right and left walls. Clearance from
range top to adjacent vertical walls must be at least 4”. Seal
any openings in the wall behind the appliance and in the floor
below the appliance.
For the cabinets over the cooking surface and the adjacent cabinets,
the maximum cabinet depth from back wall is 13 inches.
4” Min.
Figure 1: Cabinet Preparation
30” Minimum Centered
No Clearance to Cabinet
Wall Required
Place Gas Supply
Line and
Electrical Outlet
Here
30” Min.
18” Min.
4” Min.
The gas supply line and electrical outlet must be within the spaces
indicated in Figure 2. The gas shut off valve must also be accessible
without moving the range.
Instructions were determined using Standard American base
cabinets measuring 36" high x 24" deep. If nonstandard cabinets
are used, care should be taken to alter dimensions accordingly.
NOTICE: Some cabinet finishes cannot survive the temperatures
allowed by U.L., particularly self-cleaning ovens; the cabinets may
discolor or stain. This is most noticeable with laminated cabinets.
3. Install Anti-Tip Bracket
1. Adjust height of range and level by rotating the
adjustable leg supports on the bottom of the range,
using 1-1/4" wrench.
2. Measure to locate bracket position as shown in Figure 3.
3. Secure bracket with 2 screws adequate for mounting
surface, not included. (i.e.; for wood floor use wood screws
for concrete floor use concrete anchors and screws.).
7 1/2"
7 1/2”
3 1/2”
3 1/2"
4 1/2”
4 1/2"
13 1/8 "
13 1/8”
4"
4” 3 7/8”
30"
30”
3 7/8"
4 1/2"
4 1/2”
Figure 2: Gas Supply Line and Electrical Outlet Placement
Backwall
Flush
Cabinet Sidewall
Anti-Tip Device
Figure 3
1 9/16”
Page 3
Step 4: Connect Electric
4. Connect Electric
Ranges are dual rated for use on either 120/240 VAC or 120/208
VAC. See table for power ratings and circuit breaker sizes based
upon the supply voltage for each mode (See chart below).
VOLTS HZ RATING CIRCUIT
A.C. KW BREAKER
120/240 60 12.1 30 AMPS
120/208 60 9.1 25 AMPS
CAUTION: make certain that gas shutoff valve and all
burner controls are in OFF position before beginning.
TO PREVENT ELECTRICAL SHOCK, THE GROUNDING PRONG
SHOULD NOT, UNDER ANY CIRCUMSTANCES, BE CUT OR REMOVED. IT MUST BE PLUGGED INTO A MATCHING GROUNDING
TYPE RECEPTACLE AND CONNECTED TO A CORRECTLY POLARIZED 240-VOLT CIRCUIT. A separate circuit is recommended
which is in compliance with the NEC.
If there is any doubt as to whether the wall receptacle is properly grounded, have it checked by a qualified electrician.
This appliance may be connected to the power supply by installing
flexible conduit or a power cord set. The electrical rating of the
power cord set (not supplied) must be 240 volt, 30 amperes. The
power cord set shall be marked “For Use with Ranges.”
The power supply shall be connected to the range terminal block
compartment located near the bottom of the back panel (See
Figure 4 , at right). It is accessible by removing the terminal block
cover.
Place strain relief in knockout below terminal block (See Figure
below). Feed range cord through hole and strain relief up to
terminal block. Allow for slack in the cord between the strain
releif and terminal block. Once cord length/ slack has been
adjusted, attach strain relief per instructrions included with strain
relief. Connect wiring as described below and on next page.
TIP
The knockout panel can be removed from the range to
install the strain relief:
Remove panel from range, install strain relief in panel
and re-attach.
Electric Connection
(found behind terminal
block cover)
Feed Range
Cord Through
Strain Relief in
Gas Connection
Knockout
Panel Here
Figure 4
The strain relief provided with your range cord
must be properly installed.
4
Electrical Connection Procedures
Refer to Figures 5-10 ( below and next page) for further explanation.
WARNING
CONSULT YOUR INSTRUCTIONS FOR ‘ELECTRICAL CONNECTION PROCEDURES’. COPPER WIRE MUST BE USED
FOR CONNECTION TO THE TERMINAL BLOCK. WHEN POWER SUPPLY CORD KIT IS USED TO CONNECT RANGE TO
THE POWER SUPPLY. USE ONLY CORD KITS RATED 120/240 VOLTS MINIMUM AND MARKED FOR USE WITH RANGES.
REFER TO INSTALLATION INSTRUCTIONS FOR PROPER CORD KIT AMPERAGE RATING, RISK OF FIRE OR
ELECTRICAL SHOCK MAY BE INCURRED IF AN INCORRECT SIZE RANGE CORD KIT IS USED, THE INSTALLATION
INSTRUCTIONS ARE NOT FOLLOWED, OR THE STRAIN RELIEF BRACKET IS DISCARDED.
RISK OF ELECTRIC SHOCK FRAME GROUNDED TO NEUTRAL OF APPLIANCE THROUGH A LINK GROUNDING
THROUGH THE NEUTRAL CONDUCTOR IS PROHIBITED FOR NEW BRANCH-CIRCUIT INSTALLATIONS, (1996 NEC)
MOBILE HOMES AND RECREATIONAL VEHICLES, OR IN AN AREA WHERE LOCAL CODES PROHIBIT GROUNDING
THROUGH NEUTRAL CONDUCTOR. FOR INSTALLATIONS WHERE GROUNDING THROUGH THE NEUTRAL CONDUCTOR IS PROHIBITED:
(1) DISCONNECT THE LINK FROM THE NEUTRAL.
(2) USE GROUNDING TERMINAL OR LEAD TO GROUND UNIT: AND
(3) CONNECT NEUTRAL TERMINAL OR LEAD TO BRANCH CIRCUIT NEUTRAL IN USUAL MANNER
(WHEN THE APPLIANCE IS CONNECTED BY MEANS OF A CORD KIT, USE 4 CONDUCTOR
CORD FOR THIS PURPOSE).
Center or white wire
must always be
attached to the
central terminal on
block.
All screw and nut
connections must be
tight.
Remove ground
strap from terminal
block. Install with
care, the green
ground wire as
shown at left. Attach
ground wire and
strap with screw
provided with strap.
Figure 5
Page 4
Step 4 (cont’d): Connect Electric
4. Connect the Range Cord.
Three Wire Connection
The Four Wire Connection is preferred, but where
local codes and ordinances permit grounding through
neutral, unit may be connected to the power supply via a
three wire connection.
1. Disconnect electrical power at breaker box.
2. Remove the terminal block cover to expose the
terminal block (See Figure 6).
3. Remove top nut, star washer, and round washer from
each post.
Note: DO NOT remove last round washer, last nut or
internal wiring leads.
4. Attach white wire, round washer, star washer and nut
IN THIS ORDER on top of ground strap on center post.
DO NOT remove ground strap. (See Figure 7).
5. Attach red wire, round washer, star washer and nut IN
THIS ORDER to left post (See Figure 7).
6. Attach black wire, round washer, star washer and nut
IN THIS ORDER to right post (See Figure 7).
7. Tighten all connections securely and replace terminal
block cover (See Figure 8).
Red
Figure 6
Black
White
Ground Strap
Figure 7
Four Wire Connection (Preferred Method)
1. Disconnect electrical power at breaker box.
2. Remove the terminal block cover to expose the
terminal block (See Figure 6).
3. Remove top nut, star washer, and round washer from
each post.
Note: DO NOT remove last round washer, last nut or
internal wiring leads.
4. Remove screw from bottom end of ground strap.
5. Remove ground strap from center post, rotate (so that
wide end is at top) and straigthen. Then attach wide
end to range through hole below terminal block.
Attach green wire on top of ground strap. Tighten
Screw (See Figure 9).
6. Attach red wire, round washer, star washer and nut IN
THIS ORDER to left post (See Figure 10).
7. Attach white wire, round washer, star washer and nut
IN THIS ORDER to center post (See Figure 10).
8. Attach black wire, round washer, star washer and nut
IN THIS ORDER to right post (See Figure 10).
9. Tighten all connections securely and replace terminal
block cover.
Ground Strap
Red
Ground Strap
Black
White
Green Ground Screw
Figure 8
Green Ground Screw
Green
Figure 9
Note: DO NOT plug in range at this
time. Proceed to step 5.
Page 5
Red
Figure 10
White
Black
Step 5: Connect Gas Supply
Important note for LP users: The range is shipped
from the factory for use with natural gas. For use with
propane (LP) gas, your range must first be converted
using the LP conversion kit at this time.
The gas connection is located below the back panel of the range
(See Figure 4, Page 4). It is accessible through the warming
drawer access panel or from the back of the range. To reach
access panel, remove warming drawer.
Shut off main gas supply valve before disconnecting the old range
and leave it off until the new hook-up has been completed. Don’t
forget to relight the pilot on other gas appliances when
you turn the gas back on.
The range can be installed using rigid pipe or a CSA Internationalcertified flexible metal appliance connector. If using a flexible
connector, always use a new connector.
Apply pipe joint compound orTeflon* tape appropriate for use
with LP gas and Natural gas around all male pipe threads to
prevent leaks.
If not already present, install gas shut off valve in an easily
accesible location. Make sure all users know where and how to
shut off the gas supply to the range.
Note: The installer should inform the consumer of the
location of the gas shut-off valve.
Flexible Connector Method (see Figure 11, this page)
1. Install male 1/2” flare adaptor at the 1/2” NPT internal
thread of the range inlet. Use a backup wrench on the
elbow fitting to avoid damage.
2. Install male 1/2” or 3/4” flare union adapter on the NPT
internal thread of the manual shut-off valve.
3. Connect flexible metal appliance connector.
4. Make sure circuit breaker is off and then plug range cord in
to electrical outlet.
5. Push range back into position insuring that range leg slides
under the anti-tip bracket. The range will sit 3/4” away
from the wall when properly installed. Note: Be careful not
to crimp flexible connector!
6. Carefully tip range forward to insure that anti-tip bracket
engages and prevents tip-over.
Test for Gas Leaks.
Leak testing is to be conducted by the installer according to the
instructions given in this section.
Turn on Gas. Apply a non-corrosive leak detection fluid to all
joints and fittings in the gas connection between the shut-off
valve and the range. Include gas fittings and joints in the
range if connections were disturbed during installation.
Bubbles appearing around fittings and connections
indicate a leak.
If a leak appears, turn off supply line gas shut-off valve and
tighten connections. Retest for leaks by turning on the supply
line gas shut-off valve. When leak check is complete (no
bubbles appear), test is complete. Wipe off all detection fluid
residue. Proceed to Step 6: Test the Installation
CAUTION
NEVER CHECK FOR LEAKS WITH A FLAME.
DO NOT CONTINUE TO THE NEXT STEP UNTIL ALL LEAKS
ARE ELIMINATED.
CAUTION: Before you plug in an electrical cord, be
sure all controls are in the OFF position.
Gas Shut-Off
Valve
Regulator
Figure 11: Flexible Connector Method
elbow
gas shut off valve
Flexible
Connector
elbow
Rigid Pipe Method (see Figure 12, this page)
The configuration of the rigid pipe connection will vary depending
on the location of the gas pipe stub. Refer to Figure 12 for
details.
1. Make sure circuit breaker is off and then plug range cord in
to electrical outlet.
2. Push range back into position insuring that range leg slides
under the anti-tip bracket. The range will sit 3/4” away
from the wall when properly installed.
3. Carefully tip range forward to insure that anti-tip bracket
engages and prevents tip-over.
4. Connect pipe to range at union. Access the connection
through the access panel behind the warming drawer.
Note: Be careful not to apply pressure to warming drawer
element during rigid pipe installation.
Proceed to “Test for Gas Leaks”, next column.
Page 6
nipple
union
nipple
elbow:
connect to
regulator here
Gas Flow to Range
Figure 12: Rigid Pipe Method
nipple
1/2” to 3/4”
gas pipe
Step 6: Test the Installation
1. Test Electric Ignition.
Turn on power at breaker. If LCD screen flashes and beeps
continuously, the wiring is incorrectly installed. Immediately
disconnect power at breaker and return to step 4: CONNECT
RANGE CORD.
Select a rangetop burner knob. Push down and turn to the
flame symbol. If the ignitor/spark module is operating correctly, it will produce a clicking sound. Once the air has been
purged from the supply lines, the burner should light within
four (4) seconds. After burner lights, turn knob to the off
position.
Test each rangetop burner in this fashion.
Call Bosch Service (800-944-2904) if any of the burners
do not light.
Some yellow streaking is normal during the
initial start-up.
Allow unit to operate 4-5 minutes and re-
evaluate before making adjustments.
Figure 14
Flame Characteristics
Yellow Flames:
Further adjustment is required.
Yellow Tips on Outer Cones:
Normal for LP Gas.
Soft Blue Flames:
Normal for Natural Gas.
2. Test/Adjust Flame.
High Setting:
The combustion quality of the flame for each burner must be
visually inspected. For propane, the flame should be blue with
yellow tips. For natural gas, it should be soft blue in color. The
flame should carry over, or surround, the entire burner and
should not lift or blow off the burner.
To inspect, turn the burner on. See Figure 14 for appropriate
flame characteristics.
If the flame is completely or mostly yellow, verify that the
regulator is set for the correct fuel. After adjustment, retest.
If any of the burners continue to burn mostly or completely yellow, call Bosch Service (800-944-2904).
Note: With LP use, some yellow tipping on outer cones is
normal.
Low Setting
All burners must also be inspected for carryover. On low, the
flame should completely surround the burner. If any of the
cooktop burners do not carry over on the low setting,
call Bosch Service (800-944-2904).
Installation is complete at this time.
WHEN PROPERLY ADJUSTED:
There should be a flame at each burner
port.
There should be no air gap between the
flame and burner
Replacement Parts: Visit your Bosch dealer for replacement parts. For a dealer near you contact Bosch service: 800-944-
2904 or www.boschappliances.com
Page 7
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