Preventing Damage From Freezing - Bosch BC3200RA Owner's Manual

Preventing Damage from Freezing

The heater and piping can be damaged if cold temperatures cause water to freeze inside the
unit. The damage can be prevented using following method:
Normal cold [
At these temperatures, the units have freeze prevention heaters that will prevent freezing.
* Do not disconnect the power. The freeze prevention heaters will not work if the power
is disconnected.
* The freeze prevention will work regardless of whether the operation button on the remote
controller has been turned on.
When the temperature drops, the freeze-
prevention heaters are automatically
activated to keep the unit warm and
prevent it from freezing.
1. Close the gas and water valves.
2. Turn off the operation button.
3. Open the water supply valve from time to time to check whether water is running.
4. When the water is flowing again, check for water leaks from the equipment and piping, or
follow steps 1 through 4 on P12 ("Initial Operation").
• If the heater or the piping is frozen, do not use the heater, or it may become damaged.
• Repairs for damage caused by freezing, is not covered by the warranty.
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Operating Instructions
outside temperatures between 0°C - 10°C with no wind
If water will not flow because it is frozen
The freeze prevention heaters will not prevent
the plumbing external to the unit from freezing.
Protect this plumbing with insulation. If you are
still worried that your heater will freeze, contact
the nearest Bosch Service Dealer.
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