Bosch Owners Manual
Table Of Contents
- Contents
- 1 Key to symbols and safety instructions
- 1.1 Key to symbols
- 1.2 Safety instructions
- 2 Information about the appliance
- 3 Preparing the appliance for operation
- 4 Operation
- 4.1 Overview of controls
- 4.2 Switching the appliance ON/OFF
- 4.3 Turning the space heating ON
- 4.4 Programming the heating control unit
- 4.5 ZBR..-3A appliances with DHW tank: Setting the DHW temperature
- 4.6 ZWB..-3A appliances (combi boilers): Setting the DHW temperature
- 4.7 Setting manual summer mode
- 4.8 Setting frost protection
- 4.9 Activating the key pad lock
- 4.10 Display codes
- 5 Thermal disinfection
- 6 Energy saving tips
- 7 Troubleshooting
- 8 Maintenance
- 9 Environmental responsibility/disposal
- 10 Quick reference
- Index
14 | Operation
6 720 806 993 (2013/03)Greenstar
4.2 Switching the appliance ON/OFF
Startup
▶ Switch the appliance ON using the ON/OFF switch.
The display shows the supply temperature.
Fig. 4
Shutdown
▶ Switch the appliance OFF using the ON/OFF switch.
The diplay goes out.
▶ If the appliance is taken out of service for a longer period: Observe frost
protection ( Section 4.8).
4.3 Turning the space heating ON
The maximum supply temperature can be set from 95 °F (35 °C) up to approx.
194 °F (90 °C). The current supply temperature is shown on the display.
If the display shows in alternation with the supply temperature,
the appliance operates at its lowest output for 15 minutes per the
initial startup sequence.
With radiant floor heating, limit the maximum permissible supply
temperature.
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