Thermador Double Oven PRDS48 User Manual

INSTALLATIONINSTRUCTIONSMANUAL  
PROFESSIONALRANGES  
ALL-GASMODELSPRG304, PRG36ANDPRG48  
DUAL-FUELMODELS-PRDS304,PRDS36ANDPRDS48  
PLEASEREADENTIREINSTRUCTIONSBEFOREPROCEEDING.  
IMPORTANT: LOCAL CODES VARY. INSTALLATION, ELECTRICAL CONNECTIONS,  
GAS CONNECTIONS, AND GROUNDING MUST COMPLY WITH ALL APPLICABLE CODES.  
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.  
Gas Supply:  
Natural Gas – 6 inch water column. (14.9mb) min., 8 inch (20mb) nominal  
Propane Gas – 11 inch water column. (27.4 mb), 14 inch (37mb) maximum  
Electrical Power Supply:  
PRG304, PRG36 and PRG48 Models – 120 VAC, 60 Hz., 1Ph., 20 Amp circuit.  
PRDS304 Model - 120/240 VAC, 50/60 HZ., 1Ph., 20 Amp circuit.  
PRDS36 Models – 120/240 VAC, 50/60 Hz., 1Ph., 35 Amp circuit.  
PRDS48 Models – 120/240 VAC, 50/60 Hz., 1Ph., 50 Amp circuit.  
WARNING: Disconnect power  
before installing. Before turning  
power ON, be sure that all  
controls are in the OFF position.  
A P P R O V E D  
®
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AVERTISSEMENTSENFRANCAIS  
For Residential Use Only  
ALL-GAS MODELS - PRG304 AND PRG36,  
DUALFUELMODELSPRDS304, PRDS36ANDPRDS48  
CET MAN U EL CONTEN IT AVERTISSEMENTS EN FRANCAIS  
AVERTISSEMENT:  
DANGER DE  
RENVERSEMENT  
DE LA CUISINIERE  
AVERTISSEMENT: Couper le courant avant d'installer.  
Avant de mettre EN MARCHE, soyez certain que tous les  
controles sont dans la position ARRÊTE.  
le fournisseur de gaz.  
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AVERTISSEMENTSENFRANCAIS  
AVERTISSEMENT  
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IMPORTANTINSTALLATIONINFORMATION  
mittent/interrupted ignition device that  
cyclesthetwofarleftsurfaceburnerson  
and off when in the ExtraLow® setting.  
of this unit, particular attention should  
be paid to the hood and duct work  
installationtoassureitmeetslocalbuild-  
ing codes. To eliminate risk of burns or  
fire caused by reaching over heated  
surface units, cabinet storage located  
above the surface units should be  
avoided.  
I
MPORTANT:  
All ranges must be installed with a  
backguard. Models PRG304 and  
PRDS304 are shipped from the  
factory with a standard 9" back-  
guard. For all other models one of  
three available backguards must be  
ordered separately and installed at  
the back of the range. The three  
backguard choices include a Low  
Back Guard, High Shelf, or Island  
Trim. See STEPS 2 and 6.  
CAUTION:  
(1) When connecting the unit to  
propane gas, make certain the  
propane gas tank is equipped  
with its own high pressure  
regulator in addition to the  
pressure regulator supplied with  
this unit. The maximum gas  
pressure to this appliance is not  
to exceed 14.0 inches (37mb)  
water column from the propane  
gas tank regulator.  
Check local building codes for the proper  
method of appliance installation. Local  
codes vary. Installation, electrical con-  
nections and grounding must comply  
with all applicable codes. In the absence  
of local codes the appliance should be  
installedinaccordancewiththeNational  
Fuel Gas Code ANSI Z223.1 Current  
IssueandNationalElectricalCodeANSI/  
NFPA 70-Current Issue. In Canada, in-  
stallation must be in accordance with  
the CAN 1-B149.1 and .2 – Installation  
Codes for Gas Burning Appliances and/  
or local codes.  
This appliance has been tested in ac-  
cordance with ANSI Z21.1 Current Is-  
sue, Standard for Household Cooking  
Appliances (USA) and in accordance  
with CAN 1.1-M81 Domestic Gas  
Ranges (CANADIAN).  
(2) This unit is designed as a  
cooking appliance. Based on  
safety considerations never use it  
for warming or heating a room.  
It is strongly recommended that this  
appliance be installed in conjunction  
with a suitable overhead vent hood.  
(See Step 1 for Ventilation Require-  
ments.) Due to the high heat capability  
This appliance is equipped with an inter-  
STEP1:VENTILATIONREQUIREMENTS  
It is strongly recommended that a suit- CAUTION: Ventilation hoods and blow-  
able exhaust hood be installed above ers are designed for use with single wall  
therange.Downdraftventilationshould ducting. However, some local building  
not be used. The table below indicates codes or inspectors may require double  
the Thermador hoods, by model num- wall ducting. Consult local building  
ber, that are recommended for use with codes and/or local agencies, before  
edge of the hood should be installed a  
minimum of 30" to a maximum of 36"  
above the range cooking surface. (See  
Fig. 1).  
• If the hood contains any combustible  
materials (i.e. a wood covering), it must  
be a minimum of 42" above the cooking  
surface.  
the 30", 36", and 48" ranges.  
starting, to assure that hood and duct  
installationwillmeetlocalrequirements.  
1. Select Hood and Blower Models:  
• Hood blower speeds should be vari-  
able to reduce noise and loss of heated  
or air conditioned household air when  
maximum ventilation is not required.  
Normally, the maximum blower speed  
is only required when using the grill.  
• For wall installations, the hood width  
must, at a minimum, equal the width of  
therangecookingsurface. Wherespace  
permits, ahoodlargerinwidththanthe  
cooking surface may be desirable for  
improved ventilation performance.  
3. Consider Make-Up Air:  
• Due to the high volume of ventilation  
air, a source of outside replacement air  
is recommended. This is particularly  
important for tightly sealed and insu-  
lated homes.  
2. Hood Placement:  
Forislandinstallations,thehoodwidth  
• A qualified heating and ventilating  
contractor should be consulted.  
should, at a minimum, overhang the • For best smoke elimination, the lower  
range cooking surface by 6" on both  
sides.  
WALLINSTALLATION  
ISLANDINSTALLATION  
RANGEWIDTH  
HOOD*  
BLOWER**  
HOOD  
BLOWER  
30"RANGE  
PH30HQS  
PHE30,36  
VTR1000Q,VTR1400Q  
or VTN 1000Q  
PHI48QS  
VTR1400Q  
36"RANGE  
48"RANGE  
PH36HQS  
PHE36,42  
VTR1000Q,VTR1400Q  
or VTN 1000Q  
PHI48QS  
PHI60QS  
VTR1400Q  
VTR1400Q  
PH48HQS  
PHE48,60  
VTR1000Q,VTR1400Q  
or VTN 1000Q  
Notes:  
* For wall installations where adequate space is available, the installer or user may elect to use a hood that is wider than the range  
cooking surface. This may be particularly beneficial for those cases, such as a long duct run or heavy usage of the grill, in which  
improved capturing of the cooking exhaust is desired.  
** Thermador offers a choice of remote (VTR1000Q or VTR1400q) or in-hood (VTN1000Q) blowers for use in wall installations.  
Page 3  
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STEP2:CABINETPREPARATION  
1. The range is a free standing  
unit. If the unit is to be placed  
adjacent to cabinets, the  
4. The maximum depth of over  
required for each type of  
backguard.  
head cabinets installed on  
either side of the hood is 13".  
7. Always keep appliance area  
clear and free from combustible  
materials, gasoline and other  
flammable vapors and liquids.  
clearances shown in Fig. 1 are  
required. The same clearances  
apply to island installations,  
except for the overhead cabi-  
nets, which must have a space  
wide enough to accept the  
flared island hood, as indicated  
in Fig. 1.  
5. Any openings in the wall behind  
the range and in the floor under  
the range must be sealed.  
6. When there is less than a 12"  
horizontal clearance between  
combustible material and the  
back edge of the range above  
the cooking surface, a  
8. Do not obstruct the flow of  
combustion and ventilation air  
to the unit.  
CAUTION:  
2. The PRDS48 Ranges must be  
placed with the oven door  
Thermador Low Back or High  
Shelf backguard must be  
installed. (See Fig. 2a). When  
clearance to combustible  
Do not install the Model  
PRDS48 ranges such that the  
oven door is flush with the  
cabinet face. A flush installa-  
tion could result in damage to  
the cabinets due to exposure  
to high heat.  
projecting out from the cabinet  
face. The cabinet face should  
line up with the oven front  
frame, which is the surface that  
the oven door closes against.  
(See Fig. 2b and 2c illustrating  
side views of 48" ranges.)  
material is over 12", a  
Thermador Island Trim may be  
used. (See Fig. 2b). Except in  
the case of 30" Ranges,  
backguards must be ordered  
separately. Figures 2a, 2b  
and 2c indicate the space  
As defined in the “National Fuel  
Gas Code” (ANSI Z223.1, Latest  
Edition).  
3. The gas and electrical supply  
should be within the zones  
shown in Fig. 3a, 3b and 3c.  
30" Wide Hood (Model #PH30QS)  
48" for Island (Model #PHI48QS)  
FIG. 1 Cabinet Clearances  
For 30" Ranges  
For 36" Ranges  
}
}
36" Wide Hood (Model #PH36QS)  
48" for Island (Model #PHI48QS)  
48" Wide Hood (Model #PH48QS)  
60" for Island (Model #PHI60QS)  
For 48" Ranges  
}
Min. Distance Between Overhead  
Cabinets of Combustible Material ∆  
30" Range – 30"  
13" Max.  
36" Range – 36"  
48" Range – 48"  
Cabinet  
Depth  
}
CAUTION:See  
Figs. 2a, 2b and  
2c. 42" Min. to  
combustible  
material ,  
30" Min. to 36" Max.  
bottom of overhead  
Hood to cooking  
surface (42" if hood  
contains combustible  
Range width  
30", 36" or 48"  
12" Min. to  
combus-  
tible side  
wall  
material ,  
(both  
18" Min.  
from cooking  
surface  
materials )  
sides)  
Cooking  
Surface  
For Electrical and Gas Supply Zone,  
see Figures 3a, 3b and 3c. Zone size  
and position differ according to the  
model.  
*35-3/8" Min. Range Height with  
Leveling Legs fully retracted  
*36-3/4" Max. Range Height with  
Leveling Legs fully extended  
as defined in the “National Fuel Gas Code” (ANSI Z223.1, Latest  
Edition). *The range height is adjustable. The level of the range top  
must be at the same level or above the countertop level.  
Page 4  
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STEP2:CABINETPREPARATION  
CAUTION:  
Do not install the Model PRDS304 and  
PRDS48 ranges such that the front  
surface of the oven door is flush with  
the cabinet face. A flush installation  
could result in damage to the cabinets  
due to high heat. The face of the  
cabinet should line up with the oven  
front frame. The front frame location  
relative to the rear of the range is 24-3/  
8" on the PRDS304 and 25" on the  
PRDS48, as shown in Figures 2a and  
2b.  
Page 5  
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STEP2:CABINETPREPARATION  
GASANDELECTRICSUPPLYZONES:  
FIG. 3a  
Gas & Electrical Supply Zone for PRG304, PRG36 & PRG48 All-Gas Ranges  
5/8" Flex Line to  
Appliance  
The All-Gas Ranges are factory equipped  
Typical placement shown.  
Other placement of Gas  
Supply and Electrical  
Receptacle within the  
Electrical and Gas Supply  
Zone is acceptable.  
with a power supply cord with a three-prong  
grounding plug. IT MUST BE PLUGGED  
INTO A MATING, GROUNDING-TYPE, 120  
VAC RECEPTACLE THAT IS CON-  
NECTED TO A CORRECTLY POLARIZED  
AND GROUNDED 120 VAC CIRCUIT.  
(See STEP 6.)  
Three-Prong,  
120 VAC  
Receptacle  
Gas & Electrical  
Supply Zone  
1/2" N.P.T.  
NOTE:  
A Manual Gas  
The range must be connected only to the  
type of gas for which it is certified.  
If the range is to be connected to propane  
gas, ensure that the propane gas supply  
tank is equipped with its own high pressure  
regulator in addition to the pressure  
regulator supplied with the range. (See  
STEP 5.)  
Shut-Off Valve  
(not shown) must  
be easily accessible  
through an adjacent  
cabinet without moving  
the range.  
5"  
1 3/4" Maximum  
Protrusion from Wall  
for Gas Supply  
FIG. 3b Gas & Electrical Supply Zone for PRDS304 Dual-Fuel Ranges  
The Dual-Fuel ranges may be connected  
Typical placement shown.  
Other placement of Gas Supply  
and Electrical Receptacle  
within the Electrical and Gas  
Supply Zone is acceptable.  
to the power supply with a 3-pole, 3-  
conductor range supply cord kit, a 3-pole,  
4-conductor range supply cord kit or by  
hard-wiring to the power supply. It is the  
responsibility of the installer to provide the  
proper wiring components (cord or conduit  
and wires) and complete the electrical  
connection as dictated by local codes and  
ordinances, and/or the National Electric  
Code. The units must be properly  
grounded. Refer to Step 6 for details.  
5/8" Flex Line to  
Appliance  
1/2" N.P.T.  
240 VAC Receptacle  
(Shown) or Junction  
Box  
NOTE:  
A Manual Gas  
Shut-Off Valve  
(not shown)  
must be easily  
accessible  
Gas &  
Electrical  
Supply Zone  
The range must be connected only to the  
type of gas for which it is certified. If the  
range is to be connected to propane gas,  
ensure that the propane gas supply tank  
is equipped with its own high pressure  
regulator in addition to the pressure  
regulator supplied with the range. (See  
STEP 5.)  
through an  
adjacent cabinet without  
moving  
2" Maximum Protru-  
sion from Wall for Gas  
Supply  
4-3/4"  
the range.  
FIG. 3c Gas & Electrical Supply Zone for PRDS36 and PRDS 48 Dual-Fuel Ranges  
The Dual-Fuel ranges may be connected  
Typical placement shown.  
Other placement of Gas Supply  
and Electrical Receptacle  
within the Electrical and Gas  
Supply Zone is acceptable.  
to the power supply with a 3-pole, 3-  
conductor range supply cord kit, a 3-pole,  
4-conductor range supply cord kit or by  
hard-wiring to the power supply. It is the  
responsibility of the installer to provide the  
proper wiring components (cord or conduit  
and wires) and complete the electrical  
connection as dictated by local codes and  
ordinances, and/or the National Electric  
Code. The units must be properly  
grounded. Refer to Step 6 for details.  
5/8" Flex Line to  
Appliance  
Gas  
Supply  
Zone  
1/2"  
N.P.T.  
240 VAC Receptacle  
NOTE:  
(Shown) or Junction  
Box  
A Manual Gas  
Shut-Off Valve  
(not shown)  
must be easily  
accessible  
Electrical  
Supply Zone  
The range must be connected only to the  
type of gas for which it is certified. If the  
range is to be connected to propane gas,  
ensure that the propane gas supply tank is  
equipped with its own high pressure  
through an  
adjacent cabinet without  
moving  
2" Maximum  
Protrusion from Wall  
for Gas Supply  
3-1/4"  
3-1/2"  
the range.  
Model  
A
B
regulator in addition to the pressure regulator  
supplied with the range. (See STEP 5.)  
PRDS36 7"  
PRDS48 12"  
9"  
16"  
Page 6  
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STEP2:CABINETPREPARATION  
ELECTRICALSUPPLY,DUALFUELRANGES  
This is especially critical if the  
Installation of Dual Fuel ranges  
must be planned so that the  
rough-in of the junction box for  
the receptacle or conduit connec-  
tion will allow maximum clear-  
ance to the rear of the unit.  
junction box in the wall will be  
directly behind the junction box  
on the unit when the unit is  
installed. Refer to Figures 16  
and 16a for location of junction  
box on unit. Orient the recep-  
tacle or conduit connector to  
minimize binding when the unit  
is connected to the receptacle or  
junction box and slid back in  
position.  
When the power supply cord (not  
supplied) or conduit is connected  
to the mating receptacle or  
junction box cover, the combined  
plug/receptacle or junction box  
cover/conduit connector should  
protrude no more than 2-1/4  
inches from the rear wall. See  
Figure 3d.  
FIG. 3d Wall Connection  
Junction Box & Conduit  
Power Cord & Receptacle  
Page 7  
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STEP3: UNPACKING,MOVINGANDPLACINGTHERANGE  
Chart A  
30" Range  
335 lbs.  
285 lbs.  
36" Range  
444 lbs.  
390 lbs.  
48" Range  
584 lbs.  
524 lbs.  
CAUTION:  
Shipping Weight  
Proper equipment and  
adequate manpower must  
be used in moving the  
range to avoid damage to  
the unit or the floor. The  
unit is heavy and rests on  
adjustable steel legs.  
Weight without  
packing materials  
After removing door(s),  
burner caps, front kick  
panel and oven racks  
215 lbs.  
295 lbs.  
395 lbs.  
• The range has an approximate  
shipping weight as shown in  
Chart A. It is recommended that  
the door(s), grates, burner caps,  
front kick panel and oven racks be  
removed to facilitate handling.  
This will reduce the weight as  
shown in Chart A and allow the  
range to pass through 30" door-  
ways. See Chart B and Fig. 2a and  
2b. Do not remove the grill or  
griddle assemblies.  
Chart B  
30" Range  
36" Range  
30-7/8"  
48" Range  
30-7/8"  
Doorway Width Required 28-7/8"  
(Unit Assembled)  
Doorway Width Required 27-3/4"  
(Oven Door(s) Removed)  
29-1/2"  
29-1/2"  
FIG. 4 All Ranges – Removal of  
Kick Panel and Two Front  
ShippingBolts  
FIG. 5 All-Gas and Dual Fuel  
Ranges –Removal of Two Rear  
ShippingBolts  
• Remove the outer carton and  
packing material from the ship-  
ping base. Remove the front kick  
panel (see Fig. 4) by removing two  
(2) screws at the top and pulling  
forward. The dual fuel ranges are  
held to the skid by four (4) bolts,  
the front two (2) are behind the  
kick panel (see Fig. 4) and the  
rear two (2) are located on the  
bottom flange of the range back  
(see Fig. 5). All-gas ranges are  
held in place by 4 bolts, two (2)  
as shown in Fig. 4 and two (2) at  
the rear as shown in Fig. 5. After  
removing the bolts the range  
must be lifted and removed from  
the skid.  
Left Rear  
Shipping  
Bolt  
Front  
Kick  
Panel  
FIG. 6 All Ranges –  
Door Removal  
Hinge Latch  
• To remove the door, open the  
door to the fully open position.  
Close the hinge latches (See Fig.  
6) by rotating towards the door  
top. The door can then be re-  
moved by gently lifting and  
pulling the door, with the hinges  
up and out of the frame. Do not  
lift the range by the door  
handle(s).  
Hinge Clip In  
Locked Position  
Lower Clip After  
Replacing Door  
Page 8  
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STEP3: UNPACKING,MOVINGANDPLACINGTHERANGE  
• Due to the weight, a dolly with soft  
wheels should be used to move this  
unit. The weight must be supported  
uniformly across the bottom (See  
Fig. 7).  
• After transporting the professional  
range by dolly close to its final  
location, the range can be tipped  
back and supported on the rear  
legs while the dolly is carefully  
removed. THE FLOOR UNDER  
THE LEGS SHOULD BE PRO-  
TECTED (WOOD STRIPS, CAR-  
PET, PANELING, ETC.) BEFORE  
PUSHING THE UNIT INTO  
POSITION. The anti-tip device (30"  
and 36" ranges) must be installed  
(STEP 4), gas and electric connec-  
tions should be made (STEPS 5 and  
6), and the backguard installed  
(STEP 7) before the range is placed  
in its final position.  
• For proper performance the profes-  
sional range must be level. The  
range is leveled by adjusting the  
legs with a wrench. Replace the  
kick panel and oven doors by  
reversing the procedure described  
above. It is important that the  
two (2) screws retaining the  
kick panel are secure to pre-  
vent accidental access to live  
electrical components and  
Page 9  
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STEP4: INSTALLINGANTI-TIPDEVICE  
For all 30" and 36" ranges, an anti-tip device must be in-  
stalled as per these instructions.  
WARNING  
WARNING  
RANGE TIPPING HAZARD  
• ALLRANGESCANTIP  
All ranges can tip and injury could  
result. To prevent accidental tipping  
of the range, attach it to the wall, floor  
or cabinet by installing the Anti-Tip  
Device supplied.  
• INJURYTOPERSONS  
COULDRESULT  
• INSTALLANTI-TIP  
DEVICESPACKED  
WITHRANGE  
A risk of tip-over may exist if the  
appliance is not installed in accor-  
dance with these instructions.  
• SEEINSTRALLATION  
INSTRUCTIONS  
If the range is pulled away from the  
wall for cleaning, service, or any other  
reason, ensure that the Anti-Tip De-  
vice 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 lean-  
ing 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.  
personal injury.  
CAUTION  
PROPERTY DAMAGE  
Contact a qualified installer or contrac-  
tor to determine the proper method for  
drilling holes through the wall or floor  
material (such as ceramic tile, hard-  
wood, etc.)  
WARNING  
ELECTRICAL SHOCK HAZARD  
Use extreme caution when drilling  
holes into the wall or floor. There may  
be concealed electrical wires located  
behind the wall or under the floor.  
Do not slide the range across an unpro-  
tected floor.  
Failure to follow these instructions  
may result damage to wall or floor  
coverings.  
Identify the electrical circuits that  
could be effected by the installation of  
the Anti-Tip Device, then turn off  
power to these circuits.  
Failure to follow these instructions  
may result in electrical shock or other  
Tools Needed for Installation of Anti-Tip Device:  
- Screwdriver, Phillips  
- Hammer  
- Drill, electric or hand  
- Pencil or other marker  
- Measuring tape or ruler  
- 1/8" drill bit (wood or metal wall or floor)  
- Wrench, 7/16" (PRG Ranges only)  
- Wrench adjustable (PRG Ranges only)  
- 3/16" carbide-tipped masonry drill bit (concrete or concrete block wall or floor)  
- 3/16" anchors, drywall or concrete, 2 each (not required if mounting bracket is being attached to solid  
wood or metal)  
Page 10  
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STEP4: INSTALLINGANTI-TIPDEVICE  
Parts Required for Installation of Anti-Tip Device:  
PRG304 and PRG36 All Gas Ranges (Figures 9 and 10)  
Thermador Part No. Qty  
Description  
FIG. 10 Adjustable Anti-Tip Channel PRG304  
and PRG36 All-Gas Ranges  
15-10-916  
15-10-771  
4
1
Screw, Phillips,#10 x 1-1/2"  
Anti-Tip Channel, Adjust  
able, PRG  
5-1/2"  
15-10-772  
15-10-909  
1
1
Mounting Bracket, PRG  
Bolt, Hex Head, 1/4"-20 x  
1/2"  
ThisHole  
ThisHole  
ForFlush  
Mount of  
PRG304  
ForFlush  
Mount of  
PRG36  
15-10-910  
15-10-911  
15-10-948  
1
2
2
Nut, Hex, 1/4-20  
Washer, Flat, 1/4-20  
Screw, Phillips, #10 x 1/2"  
1-17/32"  
1-9/32"  
FIG. 9 Mounting Kit for PRG304 and PRG36  
All-Gas Ranges  
FIG. 11 Mounting Kit for PRDS304 and PRDS36  
Dual Fuel Ranges  
Mounting Bracket  
15-10-772 (1 Each)  
15-10-909 (1 Each)  
15-10-770 (1 Each)  
15-10-916 (4 Each)  
15-10-771 (1 Each)  
15-10-916 (4 Each)  
15-10-911 (2 Each)  
than hardwood or metal.  
15-10-910 (1 Each)  
15-10-948 (2 Each)  
Prepare holes at fastener locations as  
identified below:  
-
For walls, wall studs, or floors composed  
of solid wood or metal, drill 1/8" pilot  
holes.  
PRDS304 and PRDS36 Dual  
Fuel Ranges (Figure 11)  
Thermador Part No. Qty  
Description  
-
For walls or floors composed of drywall,  
sheet-rock or other soft materials, drill 3/  
16" holes to a minimum depth of 1-3/4",  
then tap plastic anchors into each of the  
holes using a hammer.  
15-10-916  
15-10-770  
4
1
Screw, Phillips,#10 x 1-1/2"  
Anti-Tip Channel, Adjustable,  
IMPORTANT INSTALLATION INFORMA-  
TION:  
-
-
For walls or floors composed of concrete or  
concrete block, drill 3/16" holes to a  
minimum depth of 1-3/4", then tap con  
crete anchors into each of the holes using  
a hammer.  
The anti-tip bracket may be attached to a  
solid wood cabinet having a minimum wall  
thickness of 3/4".  
The thickness of the wall or floor may  
require use of longer screws, available at  
your local hardware store.  
For walls or floors having ceramic tile  
covering, drill 3/16" holes through the tile  
only, then drill into the material behind  
the tile as indicated immediately above.  
In all cases, at least two (2) of the bracket  
mounting screws must be fastened to solid  
wood or metal.  
If the range is moved to a new location, the  
Anti-Tip Device must be removed and rein-  
stalled.  
Use appropriate anchors when fastening the  
mounting bracket to any material other  
Page 11  
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STEP4: INSTALLINGANTI-TIPDEVICE  
PRG304 AND PRG36 All-Gas Ranges (Figures 9, 10, 12a 12b and 13)  
STEP A: Determine the best location for the  
PRG Mounting Bracket. The bracket may be  
mounted to the wall or floor behind the  
range, offset from either the left or right side  
wall by 2-3/4" for model PRG304 or  
FIG. 12a PRG36 Wall Mount (0" Clearance)  
PLANVIEW  
4-5/8" for Model PRG36.  
-
Locate the bracket on the side of the  
range that will not interfere with the  
gas supply line, electrical wiring,  
conduit or any other item.  
-
Select either the rear wall or the floor  
for mounting the bracket, based  
upon which will provide the greatest  
holding strength.  
PRG304: 2-3/4"  
PRG36: 4-5/8"  
May Be Used On Either Left  
or Right Side (Right Shown)  
STEP B: Set the bracket on the floor and turn it  
until it is oriented properly. The bracket should  
be standing up on end. The set of mounting  
flanges having one (1) hole per side should be  
resting on the floor, and the other set of  
SIDEVIEW  
mounting flanges having two (2) holes per side  
should be positioned vertically facing the rear.  
STEP C: Slide the bracket left or right to the  
correct position for the model that you are  
installing. The distance from the side wall to the  
center line of the closest mounting hole is 2-3/4"  
for model PRG304 or 4-5/8" for Model PRG36.  
FIG. 12b PRG Wall Mount (Max 2" Clearance)  
PLANVIEW  
STEP D: If you plan to mount the bracket to the  
rear wall, slide the bracket back until it is  
positioned against the rear wall. If you plan to  
mount the bracket to the floor, position the  
bracket such that the center line of the mount-  
ing holes in the horizontal bracket flanges are  
7/16" in front of the rear edge of the range  
side panel when the range is in its final in-  
stalled position.  
PRG304: 2-3/4"  
PRG36: 4-5/8"  
Maxi-  
May Be Used On Either Left  
mum  
or Right Side (Right Shown)  
Up to 2"  
STEP E: With the bracket properly positioned,  
use the bracket as a template and mark the  
location of the selected mounting holes in  
either the rear wall l (4 holes) or the floor (2  
holes) with a pencil.  
SIDEVIEW  
STEP F: Drill holes at the marked locations.  
STEP G: Using the screws provided, securely  
fasten the bracket to the rear wall (4 screws) or  
floor (2 screws).  
Page 12  
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STEP4: INSTALLINGANTI-TIPDEVICE  
STEP H: Using the 1/4"-20 x 1/2" Hex Head  
Bolt, Hex Nut and two (2) Flat Washers,  
securely attach the Adjustable Anti-Tip  
Channel to the existing hole in the flange  
located at the bottom rear of the range.  
(There are two (2) holes in the range flange,  
so be certain to select the hole that is on the  
same side as the mounting bracket.) The  
flat face of the channel should be flush  
against the underside of the range flange.  
From the bottom of the channel, screw the  
two (2) #10 x 1/2" Phillips Screws up  
through the first pair of holes extending  
beyond the rear edge of the range flange.  
These screws will prevent rotation of the  
channel. Note: A number of mounting  
holes are provided in the Adjustable  
Anti-Tip Channel. Be certain to use  
the hole that enables the channel to  
engage the mounting bracket when the  
range is in its final installed position.  
For ranges that are to be installed flush  
against a rear wall, use the first hole in  
the Adjustable Anti-Tip Channel, such  
that the short portion of the channel  
extends out from the bottom of the  
range flange and the long portion is  
hidden beneath the range. Refer to  
Figure 10.  
FIG. 13 PRG36 Floor Mount  
PLANVIEW  
Anti-Tip Channel  
Mounting Bracket  
PRG304: 2-3/4"  
PRG36: 4-5/8"  
May Be Used On Either Left  
or Right Side (Right Shown)  
SIDEVIEW  
Anti-Tip Channel  
Leveling Leg  
Mounting Bracket  
MOUNTING FLANGE OF THE ANTI-TIP  
BRACKET, AND THE ADJUSTABLE  
MOUNTING CHANNEL MUST BE AT-  
TACHED TO THE APPROPRIATE MOUNT-  
ING HOLE. REMOVE ANY LOOSE ITEMS  
SUCH AS GRATES AND BURNER CAPS  
FROM THE TOP OF THE RANGE, THEN  
CAREFULLY TILT THE RANGE FORWARD  
TO ENSURE THAT THE ANTI-TIP DEVICE  
STEP I: Carefully slide the range into posi-  
tion. FOR THE ANTI-TIP CHANNEL TO  
ENGAGE THE MOUNTING BRACKET, THE  
REAR EDGE OF THE RANGE SIDE PANEL  
MUST BE WITHIN 2" OF THE VERTICAL  
ENGAGES TO PREVENT TIPPING.  
PRDS304 AND PRDS36 Dual-Fuel Ranges (Figures 11, 14 and 15)  
-
For Model PRDS304, the dimensions  
shown are from the left side wall only.  
STEP A: Determine the best location for Anti-  
Tip Channel Mounting Bracket. The bracket  
may be mounted to the wall or floor behind  
the range, offset from side wall as indicated  
in the chart below and in Figures 14 and 15:  
-
For Model PRDS36, the dimensions  
shown are from either the left or right  
side wall. Locate the bracket on the  
side of the range that will not interfere  
with the gas supply line, electrical  
wiring, conduit or any other item.  
Model No.  
PRDS304  
PRDS36  
"A", Min.  
5-1/2"  
"B", Max.  
16-1/2"  
13-1/2"  
-
Select either the rear wall or the  
floor for mounting the bracket,  
based upon which will provide the  
greatest holding strength.  
6-1/2"  
Page 13  
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STEP4: INSTALLINGANTI-TIPDEVICE  
STEP B: Set the bracket on the floor and  
turn it until it is oriented properly. The long  
channel should be on the top with the free  
end facing towards you, one set of mounting  
flanges should be resting horizontally on  
the floor, and the other set of mounting  
flanges should be positioned vertically  
facing the rear.  
FIG. 14 PRDSWallMount  
PLANVIEW  
STEP C: Slide the bracket to the desired  
position. Note that the minimum (dim. "A")  
and maximum (dim. "B") spacing from the  
side wall to the center line of the closest  
bracket mounting hole is as shown in the  
chart above and in Figures 14 and 15.  
Min. A  
Max.B  
Max,  
up to 2"  
Shown from  
Left Side Wall  
SIDEVIEW  
STEP D: If you plan to mount the bracket to  
the rear wall, slide the bracket back until it  
is positioned against the rear wall. If you  
plan to mount the bracket to the floor,  
position the bracket such that the center  
line of the mounting holes in the horizontal  
bracket flanges are 7/16" in front of the  
rear edge of the range side panel when the  
range is in its final installed position.  
STEP E: With the bracket properly posi-  
tioned, use the bracket as a template and  
mark the location of the selected four (4)  
mounting holes.  
FIG.15 PRDSFloorMount  
PLANVIEW  
STEP F: Drill four (4) holes at the marked  
locations.  
STEP G: Using the four (4) screws provided,  
716"  
securely fasten the bracket.  
Min. A  
Max.B  
STEP H: Carefully slide the range into  
position. FOR THE ANTI-TIP DEVICE  
TO ENGAGE THE RANGE, THE REAR  
EDGE OF THE RANGE SIDE PANEL  
MUST BE WITHIN 2" OF THE VERTI-  
CAL MOUNTING FLANGE OF THE  
ANTI-TIP BRACKET, REMOVE ANY  
LOOSE ITEMS SUCH AS GRATES AND  
BURNER CAPS FROM THE TOP OF  
THE RANGE, THEN CAREFULLY TILT  
THE RANGE FORWARD TO ENSURE  
THAT THE ANTI-TIP DEVICE EN-  
GAGES TO PREVENT TIPPING.  
Shown from  
Left Side Wall  
SIDEVIEW  
Page 14  
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STEP 5: GASREQUIREMENTSANDHOOKUP  
Verify the type of gas being used at the installation site.  
HOOK UP  
As shipped from the factory, all units are configured for  
use on natural gas. For use with propane gas, the unit  
mustbeconverted. Fieldconversionforusewithpropane  
mustonlybedonebyqualifiedservicepersonnel.Contact  
the dealer where the unit was purchased or Thermador  
(800/735-4328). The field conversion kit for all  
ProfessionalGas(PRGseries)rangesisThermadorModel  
PROGASLPKIT.ThefieldconversionkitforallProfessional  
Dual Fuel (PRDS series) ranges is Thermador Model  
STARLPKIT.  
• A manual gas shut-off valve must be installed  
external to the appliance, in an accessible location  
from the front, for the purpose of shutting off the gas  
supply. The supply line must not interfere with the  
back of the unit. Make sure the gas supply is turned  
off at the manual shut-off valve before connecting the  
appliance.  
• The range is supplied with its own pressure regulator  
that has been permanently mounted within the range  
body.  
For installation of the appliance at high altitude,  
please consult your local gas company for their  
recommendation of the correct orifice sizes and any  
other necessary adjustments that will provide proper  
gas combustion at specified altitudes.  
• Use 5/8" flex line to connect between the gas supply  
and the appliance manifold pipe, which exits the  
upper left rear of the appliance. The appliance  
manifold pipe connection is 1/2" NPT. (See Fig. 3a,  
3b, or 3c.) Use caution to avoid crimping the 5/8" flex  
line when making bends.  
• The gas supply connections should be made by a  
competent technician and in accordance with local  
codes or ordinances. In the absence of a local code,  
the installation must conform to the National Fuel  
Gas Code ANSI Z223.1, Current Issue.  
CAUTION:  
When connecting unit to propane gas, make  
certain the propane gas tank is equipped with  
its own high pressure regulator in addition to  
the pressure regulator supplied with the  
appliance. The pressure of the gas supplied to  
the appliance regulator must not exceed 14"  
(37mb) water column.  
• Always use pipe dope or Teflon® tape on the pipe  
threads, and be careful not to apply excessive pres-  
sure when tightening the fittings.  
• Turn on gas and check supply line connections for  
leaks using a soap solution. Do not use a flame of  
any sort to check for leaks.  
Natural Gas Requirements:  
Inlet Connection: 1/2" N.P.T. (Minimum 5/8" dia.  
flex line.)  
For Massachusetts Installations:  
1. Shut-off valve must be a “T” handle gas  
cock.  
Supply Pressure: 6" to 14" water column. (14.9 to  
37 mb)  
Manifold Pressure: 5" water column (12.5 mb)  
2. Flexible gas connector must not be  
longer than 36 inches.  
Propane Gas Requirements:  
Inlet Connection: 1/2" N.P.T. (Minimum 5/8" dia.  
flex line.)  
3. Not approved for installation in a bed-  
room or a bathroom unless unit is  
direct vent.  
Supply Pressure: 11" to 14" water column. (27.4  
mb to 37 mb)  
Manifold Pressure: 10" water column (24.9 mb)  
CAUTION:  
“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 (3.5kPa.).”  
“The appliance and its individual shut off valve must be disconnected from the gas supply piping system  
during any pressure testing of the system at test pressures in excess of 1/2 psig (3.5kPa.).”  
When checking the manifold gas pressure, the inlet pressure to the regulator should be at least  
6.0" (14.9 mb) W.C. for natural gas or 11.0" (27.4 mb) for propane.  
Do not attempt any adjustment of the pressure regulator.  
Page 15  
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STEP6:ELECTRICALREQUIREMENTS,CONNECTION&GROUNDING  
proper circuit breaker or  
disconnecting the proper fuse.  
• Prior to servicing appliance, always  
disconnect appliance electrical  
supply cord, if so equipped, from  
wall receptacle. If appliance is hard-  
wired to power supply, disconnect  
power to unit by turning off the  
• Dual Fuel range models  
PRDS304. PRDS36 and  
PRDS48 can be cord-con-  
nected or hard-wired to the  
power supply, as described on  
Page 17.  
• Gas range models PRG304,  
PRG36 and PRG48 must be  
plugged into a 3-prong  
grounding type receptacle.  
Chart C: ELECTRICAL SUPPLY CIRCUIT REQUIREMENTS  
MODEL NUMBER VOLTAGE  
CIRCUIT RATING  
15 Amps  
FREQUENCY  
PHASE  
Single  
PRG304, PRG36  
and PRG48  
120 VAC  
50/60 Hz.  
PRDS304  
PRDS36  
120/240 VAC 20 Amps  
120/240 VAC 35 Amps  
50/60 Hz.  
50/60 Hz.  
Single  
Single  
PRDS48  
120/240 VAC 50 Amps  
50/60 Hz.  
Single  
• For the PRG All-Gas Ranges,  
improper polarization of the  
120 VAC electrical supply  
absence of local codes and  
ordinances, the power supply  
connection shall be in accor-  
dance with the National  
Electric Code.  
• For the PRDS Dual-Fuel  
Ranges, a neutral supply wire  
must be provided from the  
power source (breaker/fuse  
panel) because critical range  
components, including the  
surface burner spark  
reignition module, require  
120 VAC to operate safely and  
properly. An improper  
120/240 VAC power supply  
will cause malfunction,  
damage this appliance, and  
possibly create a condition of  
shock hazard. If the correct  
power supply circuit is not  
provided, it is the responsibil-  
ity and obligation of the  
installer or user to have proper  
power supply connected. This  
must be accomplished in  
accordance with all applicable  
local codes and ordinances by  
a qualified electrician. In the  
circuit will cause malfunction  
(such as continuous sparking  
of the burner igniters), may  
damage this appliance, and  
could create a condition of  
shock hazard at the igniter of  
each burner. If the circuit is  
not correctly polarized, it is  
the responsibility and obliga-  
tion of the installer or user to  
have the existing receptacle  
changed to a properly polar-  
ized receptacle in accordance  
with all applicable local codes  
and ordinances by a qualified  
electrician. In the absence of  
local codes and ordinances,  
the receptacle replacement  
shall be in accordance with the  
National Electric Code.  
• Observe all governing codes  
and ordinances when ground-  
ing. In the absence of these  
codes or ordinances observe  
National Electrical Code ANSI/  
NFPA No. 70 Current Issue.  
See pages 17 and 18 for  
grounding method.  
• Electrical wiring diagrams and  
schematics have been placed in  
the toe kick area of the range  
for access by a qualified service  
technician.  
• The PRDS Dual Fuel Ranges  
may be connected to a 120/  
208 VAC power supply.  
Chart D: POWER SUPPLY WIRE - RATING AND SIZE REQUIREMENTS  
MODEL  
NUMBER  
VOLTAGE  
RATING, MIN.  
TEMPERATURE  
RATING  
CONDUCTOR SIZE, AWG  
L1, L2  
NEUT  
GROUND  
PRDS304  
PRDS36  
PRDS48  
300 VAC  
300 VAC  
300 VAC  
105°C  
105°C  
105°C  
10  
12  
10  
10  
8
10  
12  
8
10  
Page 16  
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STEP6:ELECTRICALREQUIREMENTS,CONNECTION&GROUNDING  
Dual Fuel models PRDS304, PRDS36 and PRDS48 must be connected to the power supply utilizing one of the  
following methods. For all methods of connection, the length of the cord or conduit/wiring must allow the unit to  
be slid completely out of the cabinet without having to unplug or disconnect the unit from the power supply.  
Recommended minimum free length of cord or conduit is four feet. Electrical installations and grounding must  
be in accordance with all local codes and ordinances, and/or the National Electric Code, as applicable.  
3-CONDUCTOR CORD - Where  
local codes and ordinances  
permit grounding through  
conductors. The ends of the  
wiring must have #10 closed-  
loop lugs attached, preferably  
soldered in place. Make the  
connections to the terminal  
block provided. Secure the  
ground lead to the junction box  
with the screw previously used  
to secure the ground strap.  
Refer to Fig. 18a. The free end  
of the conduit must be con-  
nected to a junction box pro-  
vided in the gas and electrical  
supply zone, as shown in  
ends of the individual conduc-  
tors, preferably soldered in place.  
neutral, unit may be connected  
to the power supply with a 3-  
pole, 3-conductor cord kit rated  
125/250 volts, 50 amperes, and  
marked for use with ranges. The  
cord kit must be attached to the  
range junction box with a strain  
relief which will fit a 1-3/8"  
diameter hole. If not already  
equipped, the cord must have  
#10 closed-loop lugs attached to  
the free ends of the individual  
conductors, preferably soldered  
in place.  
Locate the junction box on the  
rear of the unit and remove  
cover. Refer to Fig. 16 for  
PRDS304 range and Fig. 16a for  
PRDS36 and PRDS48 ranges.  
Remove the knock out ring in the  
junction box to provide a 1-3/8"  
diameter hole. Remove the  
ground strap retaining screw and  
bend the ground strap up. Refer  
to Fig. 18. Install the cord to the  
junction box, and make the  
connections to the terminal block  
provided. Secure the ground  
lead from the cord to the junc-  
tion box with the screw previ-  
ously used to secure the ground  
strap. Refer to Fig. 18a. The  
cord kit must be plugged into a  
mating NEMA 10-50R receptacle  
provided in the gas and electrical  
supply zone, as shown in Figures  
3b, and 3c on Page 6.  
Figures 3b and 3c on Page 6.  
FIG. 16 Location of Junction Box  
onPRDS304Range  
Locate the junction box on the  
rear of the unit and remove  
cover. Refer to Fig. 16 for  
PRDS304 range and Fig. 16a for  
PRDS36 and PRDS48 ranges.  
Remove the knock out ring in  
the junction box to provide a 1-  
3/8" diameter hole. Install the  
cord to the junction box, and  
make the connections to the  
terminal block provided. Refer  
to Figures 17 and 17a. The cord  
kit must be plugged into a  
PERMANENT CONNECTION  
(HARD WIRING) - Units may be  
hard wired to the power supply.  
The installer must provide  
mating NEMA 10-50R receptacle  
provided in the gas and electrical  
supply zone, as shown in  
approved flexible aluminum  
conduit, 3/4" trade size, maxi-  
mum 6 feet long. Locate the  
junction box on the rear of the  
unit and remove cover. Refer to  
Fig. 16 for PRDS304 range and  
Fig. 16a for PRDS36 and  
PRDS48 ranges. Remove the  
ground strap retaining screw and  
bend the ground strap up. Refer  
to Fig. 18. The conduit must be  
installed to the junction box  
using an approved conduit  
connector.  
FIG. 16a Location of Junction Box  
onPRDS36,48  
Figures 3b, and 3c on Page 6.  
4-CONDUCTOR CORD - Where  
local codes and ordinances DO  
NOT PERMIT GROUNDING  
THROUGH NEUTRAL, unit  
must be connected to the power  
supply with a 3-pole, 4-conduc-  
tor cord kit rated 125/250 volts,  
50 amperes, and marked for use  
with ranges. The cord kit must  
be attached to the range junc-  
tion box with a strain relief  
Hole for Con-  
nection of Cord  
or Conduit  
Wiring for the unit is to be  
which will fit a 1-3/8" diameter  
hole. If not already equipped,  
the cord must have #10 closed-  
loop lugs attached to the free  
brought into the junction box  
through the conduit. Refer to  
Chart D on Page 16 for rating of  
wiring and sizing of individual  
MODEL  
PRDS36  
DIM “A”  
13-1/4"  
PRDS48  
19"  
Page 17  
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STEP6: ELECTRICALREQUIREMENTS,CONNECTION&GROUNDING  
A 3 or 4 conductor supply may be connected to  
Conductor Securement  
FIG.17  
the terminal block. A 4 conductor supply shall  
be used only when the range is installed in a  
mobile home or where local codes do not  
permit grounding through the neutral.  
Upper Nut  
Cupped Washer  
Supply Wire  
Flat Washer  
3 WIRE LEAD CONNECTION  
1. Remove upper nuts only from the terminal  
block studs. Do not remove nuts which  
secure range internal wiring leads.  
2. Secure the neutral, grounded wire of the  
supply circuit, to the center stud of the  
terminal block with nut. (See Fig. 17a).  
FIG. 17a  
3 Wire Connection  
3. Secure the L1 (black) and L2 (red) power leads  
to the outside terminal block studs (brass  
colored) with nuts.  
4. Tighten nuts securely.  
4 WIRE CONNECTION  
L2 Red  
Neutral White  
1. Remove upper nuts only from the termina  
l
L1 Black  
block studs. Do not remove lower nuts  
which secure range internal wiring  
leads.  
FIG. 18  
Ground Strap  
2. Remove ground strap screw and bend the  
strap up as shown in Fig. 18)  
3. Secure the neutral wire to the center stud of  
the terminal block with nut. Tape neutral  
wire and connector, as shown in Fig. 18a to  
insure strap does not contact a grounded  
surface.  
4. Secure the L1 (black) and L2 (red) power  
leads to the outside terminal studs (brass  
colored) with nuts.  
Bend Ground Strap Up  
FIG. 18a  
Secure Neutral Wire  
5. Secure the bare copper ground lead to the  
range chassis using the ground screw previ-  
ously used for the ground strap.  
6. Tighten all connections securely.  
L2 Red  
L1 Black  
Ground Wire  
Page 18  
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STEP6:ELECTRICALREQUIREMENTS,CONNECTION&GROUNDING  
Recommended Grounding Method – All-Gas  
Models PRG304, PRG36 and PRG48  
FIG. 19 Recommended  
Grounding Method –  
ModelsPRG304,PRS36  
and PRG48  
The 30," 36" and 48" all-gas ranges are factory equipped with a power  
supply cord with a three-prong grounding plug (with polarized parallel  
blades). IT MUST BE PLUGGED INTO A MATING GROUNDING TYPE  
RECEPTACLE THAT IS CONNECTED TO A CORRECTLY POLARIZED 120  
VOLT CIRCUIT. (See Fig. 19). Improper grounding will cause malfunc-  
tion (such as continuous sparking of the burner igniters), may  
damage this appliance, and could create a condition of shock  
hazard at the igniter of each burner. If the circuit does not have a  
grounding type receptacle, it is the responsibility and obligation of the  
installer or user to have the existing receptacle changed to a properly  
grounded receptacle in accordance with all applicable local codes and  
ordinances by a qualified electrician. In the absence of local codes and  
ordinances, the receptacle replacement shall be in accordance with the  
National Electric Code. THE THIRD GROUND PRONG SHOULD NOT,  
UNDER ANY CIRCUMSTANCES, BE CUT OR REMOVED.  
RECEPTACLE  
BOX COVER  
PLATE  
THREE-PRONG  
RECEPTACLE  
THREE-PRONG  
PLUG  
FIG. 20 Alternate  
Grounding Method –  
ModelsPRG304,PRG36  
andPRSG48  
Alternate Grounding Method – All-Gas  
Models PRG304, PRG36 and PRG48  
TWO-PRONG  
RECEPTACLE  
COVER  
PLATE  
If installing a properly grounded wall receptacle is impossible at the time of  
installation, consult your local electrical inspector for permission to  
connect a temporary adapter (with polarized blades) which could be  
plugged into your present 2-wire receptacle.  
GROUND  
WIRE  
(See Fig. 20). This method is not recommended.  
If this is done, you must attach the lug and/or the green adapter wire to  
the receptacle cover plate screw. Ground from it to a grounded metal cold  
water pipe. (See Fig. 21).  
GROUND  
WIRE  
THREE-PRONG  
ADAPTER  
GROUNDED  
COLD WATER  
PIPE  
DO NOT GROUND TO A GAS SUPPLY PIPE.  
THREE-PRONG  
PLUG  
Grounding Method – Dual-Fuel  
Models PRDS304, PRDS36 and PRDS48  
FIG. 21 Grounding Method –  
ModelsPRDS304,  
PRDS36andPRDS48  
All ranges must be properly grounded. See the grounding instructions for  
your installation case, as follows. Refer also to the instructions and  
Figures on Pages 17 and 18.  
NO. 4 WIRE  
CASE 1: Electrical Connection and Grounding with a 3 Conductor Power  
Supply (To be used when local codes permit grounding through  
the neutral.) Secure the neutral, grounded wire of the supply  
circuit to the neutral terminal of the NEMA 10-50R receptacle.  
Connect the L! (black) and the L2 (red) hot heads to the other  
terminals on the NEMA 10-50R receptacle. A separate ground  
wire is not required. Ensure that the house supply wires and all  
electrical connections meet the requirements of all applicable  
codes.  
CLAMP  
METER  
CLAMP  
METAL WATER PIPE  
Page 19  
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STEP6: ELECTRICALREQUIREMENTS,CONNECTIONS&GROUNDING  
CASE 2: Electrical Connections and Grounding  
brought out to the junction box on the  
range and connected to the box, per the  
instructions.  
with a 4-Conductor Power Supply (to be  
used only when local codes do not per-  
mit grounding through the neutral).  
Secure the neutral (white) wire of the supply  
Ensure that the house supply wires and  
circuit to the neutral terminal of the NEMA  
all electrical connections meet require-  
14-50R receptacle. Connect the L1 (black)  
ments of all applicable codes.  
and the L2 (red) hot leads to the other termi-  
nals on the NEMA 14-50R receptacle. Con-  
nect a separate ground (green) wire to the  
DO NOT GROUND TO A GAS SUPPLY PIPE.  
grounding terminal of the NEMA 14-50R  
receptacle.  
Improper grounding will cause malfunction (such  
as continuous sparking of the burner igniters),  
may damage this appliance, and could create a  
If range is hard-wired to power supply, follow  
condition of shock hazard at the igniter of each  
the instructions for permanent connection on  
pages 17 and 18. The ground wire must be  
burner. It is the responsibility and obligation of  
the installer or user to ensure that the appliance  
is properly grounded.  
STEP7:BACKGUARDINSTALLATION  
The backguard must be attached  
before sliding the range into the  
FIG. 22  
final installed position. A Low Back  
or High Shelf backguard must be  
installed when there is less than a  
12" clearance between combustibles  
and the back of the range above  
the cooking surface. (See Fig. 2a  
and 2b).  
Front of Unit  
An Island Trim is available for  
covering the backguard mounting  
flanges for island installations,  
where there is a minimum of 12" of  
horizontal clearance between  
combustibles and the back of the  
range. (See Fig. 2c).  
The backguard is inserted, as  
shown in Fig. 22, into the guide  
channels on the back of the range.  
Secure the backguard with the (4)  
sheet metal screws provided.  
For installation of backguards  
on all models, refer to the following  
instructions on Page 21.  
Chart D: BACKGUARD KIT MODEL NUMBERS  
RANGE MODEL NO. 9" STD. LOW BACK 12" LOW BACK  
22" HIGH SHELF  
PHS30T  
1-1/2" ISLAND TRIM  
PRS30ITS  
PRDS304/PRG304  
PRDS36/PRG36  
PRDS48/PRG48  
Included with Range  
N/A  
N/A  
N/A  
PRS36LBS  
PRS48LBS  
PHS36T  
PRS36ITS  
PHS48T  
PRS48ITS  
Page 20  
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STEP7:BACKGUARDINSTALLATION  
INSULATION AND RETAINER REMOVAL  
FIG. 22a  
Before the backguard can be assembled onto Model  
PRDS304, PRDS36 and PRDS48 Ranges, the insulation  
retainer and the insulation must be removed to avoid  
interference. This insulation is not required on the  
PRDS304, PRDS36 and PRDS48 models.  
The High Shelf Back Trim is shown. The procedure is  
the same for Island Trim or Low Back Trim  
Step 1  
Screws  
Remove the four (4) screws holding in insulation  
retainer. See Fig. 22a.  
FIG. 22b  
Step 2  
Slide insulation retainer and insulation out and  
discard. See Fig. 22b.  
Insulation  
Retainer  
NOTE: DO NOT REMOVE INSULATION WHEN  
INSTALLING A BACKGUARD ON MODELS PRG304,  
PRG36 AND PRG48 ALL-GAS RANGE.  
STEP8:TESTANDADJUSTMENT  
Install any loose components, such as burner caps and grates, that may  
have been removed earlier. Be certain that burner caps seat properly into  
the alignment slots in the burner bases. Before testing operation of the  
appliance, verify that the unit and the gas supply have been carefully  
checked for leaks and that the unit has been connected to the electric  
power supply. Turn the manual gas shut-off valve to the open position.  
Check operation of the sealed gas burners and grill by pushing and  
turning each knob counterclockwise to “HI”. The burner igniters will click  
until the flame ignites. The two far left sealed burners feature XLO®,  
causing the flame to cycle on and off when the knob is set to the XLO  
range. This is normal operation.  
CAUTION  
Thermador recommends that  
burner adjustments be made by  
a qualified technician at the  
time of installation. Extreme  
care should be used when  
adjustments are made after  
installation. Improper or lack of  
adjustments may void your  
warranty.  
Burner flames should be blue and stable with no yellow tips, excessive  
noise, or lifting of the flame from the burner. If any of these conditions  
exist, check that the air shutter (grill, griddle and gas oven only) or burner  
ports are not blocked or clogged. Remove any blockages that exist.  
If the flame is too yellow, indicating insufficient air, adjust the shutter  
counterclockwise to increase air inlet (grill, griddle and gas oven only).  
The sealed top burner flames should be approximately 1" to 1-1/4" high. The  
griddle, grill, gas oven and infrared broiler burner flames should be as shown  
in Fig. 23).  
NOTE: No air shutter or low flame adjustment is necessary or possible with  
the sealed top burners.  
Page 21  
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STEP8:TESTANDADJUSTMENT  
PROPERFLAME(APPROX.)  
FIG. 23  
* The gas oven infra-red broiler  
burner has no air shutter and  
is not adjustable when used  
with natural gas. When used  
on propane gas, an air shutter  
is attached, but it is not  
Griddle, Grill, & Gas Oven Burners  
adjustable. It is necessary to  
operate the oven broiler for 45  
minutes to eliminate the harsh  
odor of the insulation binder.  
This must be done before  
broiling food in the range for  
the first time and with proper  
ventilation.  
H
Flame Height "H"  
Burner  
Natural Gas Propane Gas  
Griddle 3/4"  
Grill 1/4"  
3/4" to 1"  
1/2"  
Gas oven 1-1/2" to 2 " 1-1/2" to 3"  
Gas Oven Infra-Red Broiler Flame Characteristics should be Visually Inspected  
to Resemble Diagram. (Looking at Front of Burner).  
1/8" Plume  
Screen should be  
Glowing Red  
Flame should be approximately 1/8"  
thick and should be blue in color  
TO CLEAN AND PROTECT  
EXTERIOR SURFACES  
The stainless steel surfaces may be cleaned by wiping  
with a damp soapy cloth, rinsing with clear water and  
drying with a soft cloth to avoid water marks. Any mild  
glass cleaner will remove fingerprints and smears.  
DO NOT allow deposits to remain for long periods of  
time.  
DO NOT use ordinary steel wool or steel brushes.  
Small bits of steel may adhere to the surface causing  
rust.  
For discolorations or deposits that persist, refer to the  
Care and Use Manual.  
DO NOT allow salt solutions, disinfectants, bleaches or  
cleaning compounds to remain in contact with stain-  
less steel for extended periods. Many of these com-  
pounds contain chemicals which could prove harmful.  
Rinse with water after exposure and wipe dry with a  
clean cloth.  
To polish and protect the stainless steel, use a cleaner/  
polish such as Stainless Steel Magic®.  
Page 22  
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INSTALLERCHECKLIST  
FINAL CHECK LIST  
Burner caps properly seated  
into burner bases with align-  
ment pins engaged.  
Manual gas shut off valve  
installed in an accessible  
location (without requiring  
removal of range).  
Placement of unit.  
Specified clearances maintained  
to cabinet surfaces.  
Grill components properly  
seated (not all models). Refer to  
Use & Care Manual for Grill  
details.  
Unit tested and free of gas leaks.  
Unit Level – front to back –  
side to side.  
Gas supply pressure does not  
exceed 14" (37mb) W.C.  
Burner caps positioned properly  
on sealed burner bases.  
Bezels centered on burner  
knobs, and knobs turn freely.  
ELECTRICAL  
All packaging material removed.  
Each burner lights satisfacto-  
rily, both individually and with  
other burners operating.  
Receptacle with correct over-  
current protection is provided  
for service cord connection.  
Backguard attached (if horizon-  
tal clearance to combustible  
materials behind cooking  
surface is less than 12").  
Air Shutter adjustment for  
proper flame made for Grill,  
Griddle and Gas Oven. See  
Step 8 and Fig.23.  
Proper ground connection.  
Proper polarity at receptacle.  
Ceramic briquettes bag placed  
in grill unit (if equipped) per  
instructions enclosed.  
Kick panel in place and two (2)  
screws secure.  
Griddle is level or tilted slightly  
forward and does not rock (not  
all models).  
The stainless steel grill housing  
(if equipped) is in place. The  
ceramic briquettes are placed  
on grill tray per instruction  
enclosed.  
OPERATION  
Oven door hinges seated and  
hinge locks in proper position.  
Door opens and closes properly.  
(Two doors on Model PRDS48.)  
All internal packing materials  
removed. Check below grates  
and grill pans and within  
oven(s).  
GAS SUPPLY  
Burner grates correctly posi-  
tioned, level, and do not rock.  
Connection: 1/2" N.P.T. with  
a minimum 5/8" diameter  
flex line.  
If used on propane gas, verify  
that the propane gas supply is  
equipped with its own high  
pressure regulator in addition  
to the pressure regulator  
The appliance is connected only  
to the type of gas for which it is  
certified for use.  
supplied with the appliance.  
Page 23  
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NOTES  
Page 24  
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NOTES  
Page 25  
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Specifications are for planning purposes only. Refer to installation instructions and consult your countertop supplier  
prior to making counter opening. Consult with a heating and ventilating engineer for your specific ventilation  
requirements. For the most detailed information, refer to installation instructions accompanying product or write  
Thermador indicating model number.  
We reserve the right to change specifications or design without notice. Some models are certified for use in Canada.  
Thermador is not responsible for products which are transported from the United States for use in Canada. Check with  
your local Canadian distributor or dealer.  
For the most up to date critical installation dimensions by fax, use your fax handset and call 702/833-3600. Use code  
#8030.  
5551 McFadden Avenue, Huntington Beach, CA • 800/735-4328  
ECO 14028 • 15-12-596C • © BSH Home Appliances Corp • Litho U. S. A. 4/01  
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