Alto-Shaam 6-10ML Specifications Page 10

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COMBITHERM GAS INSTALLATION AND MAINTENANCE MANUAL 6011ML
PG.7
COMBITHERM® GAS INSTALLATION
1.13 GAS TYPE AND PRESSURE
1.14 GAS CONNECTION
1.12 GAS CONNECTION REQUIREMENTS
Installation of this oven must be completed by a qualified installer familiar with the local codes and
regulations governing the installation of commercial gas appliances.
Installation must be in accordance with local codes, and in the absence of local codes, with the National Fuel
Gas Code ANSI Z223.1 (latest edition). In Canada, the appropriate code is the Natural Gas Installation Code,
CAN/CGA-B149.1 or the Propane Installation Code, CAN/CGA-B.
Check the oven nameplate information to determine
if the oven was manufactured for use with natural or
propane gas. Make certain the gas supply matches
the nameplate information.
Check the oven nameplate to determine the gas
manifold pressure for the oven. The minimum
supply pressure to the oven must exceed this value
by at least 1" w.c. It is recommended that the supply
pressure be between 5" w.c. and 14" w.c. for natural
gas, and 11" w.c. and 14" w.c. for propane.
An alternate gas supply inlet may be required
for installation sites with elevations at 3,000
feet (914m) above sea level. Please check
with the factory.
Should conversion to the opposite fuel be desired,
conversion parts must be ordered from the factory.
Conversion must be completed by a qualified service
person only.
Always remember to reflect the
conversion on the oven's nameplate.
The minimum size requirement for gas piping or a
flexible connector is
3
/
4
- inch (19mm). For long runs
of gas piping, the pipe diameter must conform to the
tables in the National Fuel Gas Code, ANSI/NFPA
Z223.1.
A listed gas shut-off valve must be installed
upstream of the appliance to shut off the gas supply
during servicing. The shut-off valve should be
accessible with the appliance in the normal
installation position.
If the oven or the oven stand is supplied with casters,
gas connection must be made with a flexible
connector that complies with the Standard for
Connectors for Movable Gas Appliances, ANSI
Z21.69; or in Canada, Connectors for Movable Gas
Appliances, CAN/CGA-6.16-M87. When using a
flexible connector, a quick disconnect device must be
used to comply with the Standard for Quick-
Disconnect Devices for Gas Fuels, ANSI Z21.41; or in
Canada, Quick Disconnect Devices for Use with Gas
Fuels, CAN1-6.9.
When a quick disconnect device and flexible
connector are used, a restraining device must be
installed to limit the movement of the appliance and
prevent damage to the connector or quick disconnect.
An example of a restraining device would consist of
a 2000 pound test, stainless steel cable, attached to a
structural member of the kitchen wall behind the
oven. The means of attachment should consist of a
quick connect snap so that the oven can be
disconnected when the appliance must be moved
away from the wall.
The other end of the cable should be permanently
attached to the rear frame of the oven. The cable
should be of sufficient length so that no strain is ever
placed on the flexible gas connector in the event of
accidental movement of the oven without properly
disconnecting the gas connector. The flexible
connector should be routed to form a downward "U"
loop between the building gas supply and the
permanent attachment at the rear of the oven.
The routing of the flexible connector must not be
made under the oven. Oven temperatures achieved
during operation are too hot for safe operation. Gas
piping should be installed from the point of gas
connection at the bottom, front of the oven to the
back of the oven where the flexible connector may
be safely used. See the illustration for the
recommended placement.
CAUTION
OVERHEATING
DANGER
Gas piping
must never
be installed
to run under
the burner.
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