Miele HR 1421 Installation Instructions Manual page 78

Gas connection
The gas connection must be
established only Miele-authorized
specialists according to the local and
following regulations:
National Fuel Gas Code
ANSI Z 21.1 / NFPA No. 54 for the
United States or the current Can /
CGA B 149.1 and 2 Installation
Codes of Gas Appliances for
Canada.
The gas pressure may not
undershoot or exceed certain values.
Make sure that the maximum gas
pressure upstream of the gas
pressure controller does not amount
to more than 1/2 psi (3.5 kPA) for
natural and liquid gas.
Make sure that the minimum gas
pressure amounts to a 6" (150 mm)
water head in the case of natural gas
and a 10" (255 mm) water head in
the case of liquid gas.
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