Bosch Evolution HDS7052U User manual

LP Conversion Manual
Bosch Range
Guide de conversion LP
Cuisinière Bosch
Manual de Conversión a Gas LP
Estufas Bosch

Table of Contents
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Huntington Beach, CA 92649
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Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Conversion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Before You Begin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Test the Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Before Calling Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

English 1
IMPORTANT SAFETY INSTRUCTIONS
Important Safety Instruc-
tions
• Please read Installation Instructions before beginning the conversion
• Please read all instructions before proceeding. Save the natural gas parts for
possible conversion from LP back to natural gas in the future
• This kit is used to convert dual fuel ranges and gas ranges from natural gas
operation to propane (LP) gas operation. Only ranges manufactured by BSH
Home Appliances can be converted using this kit.
•CAUTION: When connecting the unit to the propane gas,make certain the
propane gas tank is equipped with its own high pressure regulator. In addi-
tion, the range has its own pressure regulator. Verfiy that it is installed for the
appropriate gas supply.
• The maximum gas pressure to this appliance is not to exceed 14.0 inches
water column from the propane gas tank regulator.
• 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 shut-off 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).
•WARNING: This conversion kit shall be installed by a qualified service
agency in accordance with the manufacturer's instructions and all applicable
codes and requirements of the authority having jurisdiction. If the information
in these instructions is not followed exactly, a fire, explosion or production of
carbon monoxide may result causing property damage, personal injury or loss
of life. The qualified service agency is responsible for the proper installation of
this kit. The installation is not proper and complete until the operation of the
converted appliance is checked as specified in the manufacturer's instructions
supplied with the kit.
• For Massachusetts Installations:
1) Installation must be performed by a qualified or licensed 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: This range is CSA certified for safe operation
up to an altitude of 10,000 ft. without any modifications (except LP conver-
sion, when applicable).
Safety

English 2
Before You Begin
Tools and Parts Needed • 7 mm Socket Driver w/ 3" extension
• Torx (T20)-head screwdriver
• Adjustable Wrench
• Flathead Screwdriver (1/8" or smaller)
• Phillips Head Screwdriver
Parts Included • Conversion Kit Instructions
• Conversion Sticker
• 4 LP Orifices
General Information
Always Provide Adequate
Gas Supply This appliance is shipped from the factory for use with natural gas. Use this kit to
convert the appliance for LP gas use if necessary. Observe the following:
Be sure the range is converted for use with the appropriate gas before using it.
This appliance is designed to operate at a pressure of 10" of water column when
used with LP gas.
When checking for proper operation of the regulator, the inlet pressure must be at
least 1" greater than the operating (manifold) pressure above. When converting
for LP gas use, the pressure supplied to the regulator must be between 11" and
14" of water column. See step 2 "Convert Pressure Regulator from 5" to 10"
W.C.", next page.
The pressure regulator located in the inlet of the range manifold must remain in
the supply line.
Use a flexible metal appliance connector or rigid pipe to connect the Range to the
gas supply. The connector should have an I.D. of 1/2" and be 5' in length (Excep-
tion: Maximum connector length in Massachusetts installations is 3'). In Canada,
the connector must be single wall metal and not longer than 6'.
Preparation CAUTION: Turn off Gas and Electricity
Before proceeding with the conversion; shut off the gas supply to the appliance
prior to disconnecting the electrical power.
1. Turn all control knobs to the "OFF" position.
2. Shut off the outside propane tank gas valve to the range.
3. Remove range power cord from electrical outlet or turn breaker off at breaker
box
Procedure
Conversion

Conversion
English 3
Convert Pressure Regu-
lator from 5" W.C. to 10"
W.C.
1. Remove Warming Drawer; Pull drawer out until stop is reached. Facing the
range, push clip on left side up and clip on right side down. Pull drawer the
rest of the way out.
2. Remove cover plate from interior back wall by removing single screw on left
side of panel. Use a torx T-20 head screwdriver.
3. Remove the hexagon cap from the top of the regulator with an adjustable
wrench.
4. Pop out the plastic stem in the cap and turn it over pressing it firmly in place
so that the letters "LP" (rather than "NAT") are seen upright in the stem.
5. Replace the cap and button assembly into the top of the regulator sealing it
firmly. Make certain spring is still in place (See Fig. 1). DO NOT OVER
TIGHTEN.
7. Fill out and affix the CONVERSION STICKER on the back side of the cover
plate so that it appears on the back side of range next to the regulator.
Replace Cooktop Orifices 1. Remove Grates, Burner Caps and Burner Bases.
Unscrew two (2) T20 screws inside each base and remove burner bases.
Reinsert screws in jet holder to hold tubing assembly in place.
3. Remove Natural Gas Cooktop Orifices.
Insert the socket driver with 3" minimum extension into the jet holders to
remove existing orifices. Set natural gas orficies aside.
4. Assemble LP Cooktop Orifices.
Place in cooktop exactly as laid out in the orifice card. If the orifices become
separated from the card, placement can be determined by matching the num-
ber and/or color on the orifice with the placement specifications displayed in
the chart on the card
Figure 6: Pressure Regulator
NA
T
LP
NAT
Hex
Cap
Pin
Position
for Nat.
Gas
Pin
Pin Position
for Propane Hex
Cap
LP
Pin
Spring
Figure 2: Cooktop Orifice
Burner Grate
Burner Cap
Burner Base
Orifice
Ignito
r

Conversion
English 4
5. Place the new orifice into the socket then insert each orifice into its respective
threaded hole in the jet holder. Tighten until the orifice stops turning. DO NOT
OVER TIGHTEN.
6. Remove screws to replace burner base, burner cap and burner grate.
Replace screws.
Note: Burner cap must be properly positioned on burner base for burner to
light.
7. Place natural gas orifices in back of card for future conversion back to natural
gas.
Convert Cooktop Valves
for Propane Use
1. Verify that all knobs are in the OFF position
2. Remove knobs (pull straight out)
3. Insert 1/8” (or smaller) flat head screwdriver into shaft and turn bypass screw
clockwise until it stops (bypass screw is inside shaft). DO NOT OVER-
TIGHTEN.
5. Replace knobs.
If your range is dual fuel your conversion is complete. Replace the cover
plate and warming drawer and proceed to “Test the Installation” on page 6.
For gas range conversions, continue to next step.
Adjust Broil Burner Ori-
fice
1. Remove oven door (see section "Removing Oven Door" in Use and Care
manual).
2. Remove Broil Burner Assembly. The broil burner assembly is attached to the
top of the oven cavity with 7 screws. Remove screws and gently pull broil
burner assembly straight out being careful not to detach electrical wires.
Place broil burner against back wall of oven cavity.
3. Adjust Broil Orifice. The orifice is located behind the broil burner in the back
oven wall (See Figure 5). Use a 1/2" deep socket driver with 3" minimum
Figure 4: Cooktop Valve Conversion
LO
HI
OFF
SIM
Bypass Screw Inside Shaft

Conversion
English 5
extension to turn orifice clockwise until it stops (2- 2 1/2 turns). DO NOT
OVERTIGHTEN.
6. Replace Broil Assembly. Replace broil assembly being careful to feed all
wires through back wall of oven. Reinsert all 7 screws.
Note: The air shutter on the broil burner fits over the orifice when installed
correctly.
Adjust Bake Burner Ori-
fice
The bake burner orifice is located below the air shutter (See Figure 6). Reach it
through the access hole in the interior back panel of the warming drawer cavity.
Figure 4: Broil Orifice
Figure 5: Broil Orifice Conversion
CAUTION: DO NOT overtighten the broil burner orifice. Overtighten-
ing may result in damage to the pin inside the orifice. This affects cooking
performance. It could cause inconsistent flames and unintentional release of
carbon monoxide.
Broil Orifice
Natural Gas Setting LP Gas Setting
Tightened, but not fully seated

Conversion
English 6
1. Use a 1/2" wrench to turn orifice clockwise until it stops (2 1/2 - 3 turns).
Unlike the broil burner orifice, the bake burner orifice should be tightened as
far as it will go in order to ensure that complete conversion has occurred.
Test the Installation
Test for Gas Leaks Leak testing is to be conducted by the installer according to the instructions given
in this section.
Apply Leak Detection Fluid Turn on Gas. Apply a non-corrosive leak detection fluid to all joints and fittings in
the gas connection between the shutoff valve and the range. Include gas fittings
and joints in the range if connections may have been disturbed during installation.
Bubbles appearing around fittings and connections indicate a leak.
If a leak appears, turn off supply line gas shutoff valve and tighten connections.
Retest for leaks by turning on the supply line gas shutoff valve. When leak check
is complete (no bubbles appear), test is complete. Wipe off all detection fluid resi-
due.
CAUTION: Never check for leaks with a flame.
Do not continue to the next step until all leaks are eliminated.
Test Electric Ignition Turn on power at breaker
Caution: If the display flashes and beeps, the polarity of the wiring may be
reversed. Reversed polarity can damage the range and can result in electrical
shock hazard. Immediately switch off power at the breaker and return to installa-
tion instructions.
Test Cooktop Burners: Each burner must be tested for proper lighting, proper flame characteristics on the
low setting and proper flame characteristics on the high setting.
Test for proper ignition:
Figure 2: Bake Orifice
Figure 3: Bake Orifice Conversion
Bake Orifice
Air Shutter
Natural Gas Setting LP Gas Setting
Fully seated

Conversion
English 7
1. Push down and turn the knob to ignition symbol.
2. Verify that the ignitor/spark module clicks.
3. Once the air has been purged from the supply lines, verify that the burner
lights within four (4) seconds. After burner lights, turn knob to the off position.
4. Test each rangetop burner in this fashion. Call Service if any of the burners do
not light.
Test flame characteristics on the low setting:
1. Push in and turn the knob to the ignition symbol until the burner ignites.
2. Turn knob to the low setting.
3. Verify that the burner maintains a minimum, steady, flame without going out.
The flame should not lift or blow off of the burner. It should carry over, or sur-
round, the entire burner.
4. Verify that the flame is the right color. It should be blue with an inner and outer
cone. “Checking Flame Characteristics” on page 7 for more information.
5. Test each rangetop burner in this fashion. If any flame goes out, does not
carry over properly or is too large, contact service.
Test flame characteristics on the high setting:
1. Push in and turn the knob to the ignitor symbol until the burner ignites.
2. Turn knob to the high setting.
3. Verify that the burner maintains a steady flame. The flame should not lift or
blow off of the burner. It should carry over, or surround, the entire burner.
4. Verify that the flame is the right color. It should be blue with an inner and outer
cone. See Figure 6: Checking Flame Characteristics for more information.
5. Test each rangetop burner in this fashion.
If any flame does not carry over properly, adjust the bypass jet. Return to “Con-
vert Cooktop Valves for Propane Use” on page 4. If any flame burns yellow, con-
tact Service.
Dual Fuel appliance installation is complete when correct color, carryover
and size are verified on each cooktop burner.
For gas appliances, continue to “Test Broil Burner” on page 8
Figure 6: Checking Flame Characteristics
Yellow Flames:
Further adjustment is required.
Yellow Tips on Outer Cones:
Normal for LP Gas.
Soft Blue Flames:
Normal for Natural Gas.
If the flame is completely or mostly yellow, verify that the regulator is set for th
e
correct fuel. After adjustment, retest.
Some yellow streaking is normal during the initial start-up. Allow unit to operat
e
4-5 minutes and re-evaluate.

Conversion
English 8
Test Broil Burner
Test Ignition Set cooking mode to Hi Broil. The burner will ignite after 30-75 seconds.
Test Flame Verify that flame characteristics are as shown in “Checking Flame Characteristics”
on page 7. If flame characteristics are not consistent with those in the graphic
above, adjust the flame as describerd below. Otherwise, continue to “Test Bake
Burner” .
Adjust Broil Flame (if
necessary)
Adjust the air shutter to alter the flame characteristice. The air shutter is located
on the back end of the broil burner.
1. Loosen screw and turn shutter. Close the shutter if the flame is lifting or blow-
ing or not carrying over; Open the shutter if it is too yellow. (See Figure 8).
Tighten screw.
Test Bake Burner
Test Ignition Set the oven to bake at 350° F. After 30-75 seconds, the burner will ignite. The
burner will stay lit until the 350° F is reached and then shut off. From this point
forward, the burner will cycle on and off to maintain the temperature.
Test Flame Verify that flame characteristics are as shown in “Checking Flame Characteristics”
on page 7. If flame characteristics are not consistent with those in the graphic
above, adjust flame as described below.
Adjust Bake Flame (if
necessary)
Adjust the air shutter to alter the flame characteristice. The oven burner air shutter
is located to the left of the oven regulator. Reach it through the access hole in the
interior back panel of the warming drawer
1. Loosen screw and turn shutter. Close the shutter if the flame is lifting or blow-
ing or not carrying over; Open the shutter if it is too yellow. (See Figure 8).
Tighten screw.
Figure 2: Broil Burner Air Shutter
Air
Shutter
Screw
More Open:
Less Yellow Flame
More Closed:
Less Blue Flame
More Carryover
Less Lifting or Blowing
Figure 2: Broil Burner Air Shutter
Shutter
More Open:
Less Yellow Flame
Less Open:
Less Blue Flame
More Carryover
Less Lifting or Blowing