Bosch HydroPower 10H Installation & Owners Manual page 6

Water Flow Adjustment
Turn anti-clockwise Water flow increases, temperature diminishes
Turn clockwise Water flow decreases, temperature increases.
Warning
If the appliance does not operate, burns with yellow flame, leaks water or a gas smell
is evident, turn off and contact the local gas authority, the manufacturer or an
authorised service person.
Freezing Weather
In areas where the atmospheric temperature may drop below 0° C the heater must be
drained to prevent damage by expansion of freezing water. For appliances installed
in locations where the temperature falls below 0° C and not less than -2° C for brief
periods, the installation of an EXOGEL expansion valve, part number H707 060 151,
will minimise the possibility of damage to the appliance.
This water heater MUST NOT be installed in areas where the temperature remains
below 0° C for extended periods.
CAUTION: It is recommended that for sanitary fixtures used
primarily for the purpose of personal hygiene that a temperature
control device be fitted (such as a tempering valve) as per
AS.3498
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