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Factory Regulation - Bosch Greentherm 9800 SE 160/199 Manual

Indoor residential and comme rcial tankless water heaters
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4.7

Factory regulation

The appliances are supplied having been set in the factory for
the values shown on the rating plate for natural gas.
For any other adjustments see chapter 7.
4.7.1 Natural gas
The appliances must not be operated if the
dynamic gas pressure is less than 3.5" WC or
greater than 10.5" WC.
4.7.2 Liquid propane gas (after gas conversion)
The appliances must not be operated if the
dynamic gas pressure is less than 8"WC or
greater than 13" WC.
If gas conversion is needed (Natural Gas to Liquid propane
gas), see section 6.9.
DANGER:
▶ The gas type conversion must only be
carried out by a qualified contractor.
Greentherm 9800 SE 160/199 | SEC 199
Installation instructions | 27
6 720 816 815 (2016/10)

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