Step 1: Ventilation Requirements - Thermador Pro Harmony PRD304GHU Installation Manual

high heat capability of this unit, particular attention should
be paid to the hood and duct work installation to assure it
meets local building codes.
Check local building codes for the proper method of
appliance installation. Local codes vary. Installation,
electrical connections 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/NFPA 54 current
issue and National Electrical Code ANSI/NFPA 70-current
issue. 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.
Gas Supply:
Natural Gas — 6 inch water column. (14.9 mb) min., 14
inch (34.9 mb) maximum
Propane Gas — 11 inch water column. (27.4 mb) min., 14
inch (34.9 mb) maximum
Electric Power Supply:
(See page 14 for specifications.)
CAUTION:
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 the range. The
maximum gas pressure to this appliance
must not exceed 14.0 inches water column
(34.9 mb) from the propane gas tank to the
pressure regulator.
CAUTION:
This unit is designed as a cooking appliance.
Based on safety considerations, never use it for
warming or heating a room.
This appliance complies with one or more of the following
standards:
• UL 858, Standard for the Safety of Household Electric
Ranges
• UL 923, Standard for the Safety of Microwave Cooking
Appliances
• UL 507, Standard for the Safety of Electric Fans
• ANSI Z21.1, American National Standard for
Household Cooking Gas Appliances
• CAN/CSA-C22.2 No. 113-M1984 Fans and Ventilators
• CAN/CSA-C22.2 No. 61-M89 Household Cooking
Ranges
It is the responsibility of the owner and the installer to
determine if additional requirements and/or standards
apply to specific installations.
Due to the high heat of the cooktop burners, installing a
microwave oven with a ventilation system over the cooktop
is not recommended.
CAUTION:
To eliminate risk of burns or fire caused by
reaching over heated surface units, cabinet
storage located above the surface units should
be avoided.
Step 1: Ventilation
Requirements
It is strongly recommended that a suitable exhaust hood be
installed above the range. Downdraft ventilation should not
be used. The Table on page 4 indicates the ventilation
hood options and blower capacity guidelines that are
recommended for use with all Thermador 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
overhang the range cooking surface by a minimum of
3" on each side.
Important:
Ventilation hoods and blowers 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.
Do not install a microwave oven/ventilator combination
above the range, as these type of units do not provide the
proper ventilation and are not suitable for use with the
range.
2. Hood Placement:
• For best smoke elimination, the lower edge of the hood
should be installed 30" above the range cooking
surface. (See Figure 1).
• If the hood contains any combustible materials (i.e. a
wood covering), it must be installed a minimum of 40"
above the cooking surface.
NOTICE:
Most range hoods contain combustible components which
must be considered when planning the installation.
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