Bosch Pro Tankless GWH-425-HNO-N Instructions For Use Manual page 3

Gwh 425 hno outdoor model for exterior use only
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What to do if you smell gas
• Close gas valve.
• Do not try to light any appliance.
• Do not touch any electrical switch; do not use any
phone in your building.
• Immediately call your gas supplier from a neighbor's
phone. Follow the gas supplier's instructions.
• If you cannot reach your gas supplier, call the fire
department.
• Installation and service must be performed by a
qualified installer, service agency or the gas supplier.
Warning: The heater must be isolated
from the gas supply piping system
during any pressure testing of that
system at test pressures equal to or
more than 0.5 psig.
Caution:
Any
modifications not expressly approved
by the party responsible for compliance
could void the user's authority to
operate the equipment.
Fig. 1
8 716 473 148
changes
or
Fig. 2
Warning
3

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