Thermador PRG304, PRG48, PRDS48, PRG36 Ventilationrequirements, Select Hood and Blower Models

IMPORTANT:

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.

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).

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

of this unit, particular attention should be paid to the hood and duct work installation to assure it meets local build- 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.

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 installed in accordance with the National Fuel Gas Code ANSI Z223.1 Current Issue and National Electrical Code ANSI/ 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 is equipped with an inter-

mittent/interrupted ignition device that cycles the two far left surface burners on and off when in the ExtraLow® setting.

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.

(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 a suit-

able exhaust hood be installed above the range. Downdraft ventilation should not be used. The table below indicates the Thermador hoods, by model num- ber, that are recommended for use with the 30", 36", and 48" ranges.

1. Select Hood and Blower Models:

•For wall installations, the hood width must, at a minimum, equal the width of the range cooking surface. Where space permits, a hood larger in width than the cooking surface may be desirable for improved ventilation performance.

•For island installations, the hood width should, at a minimum, overhang the range cooking surface by 6" on both sides.

CAUTION: Ventilation hoods and blow- ers are designed for use with single wall ducting. However, some local building codes or inspectors may require double wall ducting. Consult local building codes and/or local agencies, before starting, to assure that hood and duct installation will meet local requirements.

•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.

2. Hood Placement:

• For best smoke elimination, the lower

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.

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.

•A qualified heating and ventilating contractor should be consulted.