Changing The Settings For Dhw Heating; Setting The Operating Mode For Dhw Heating; Setting The Time Program For Dhw Heating - Bosch HPC 400 Operating Instructions Manual

20 | Working with the main menu
WARNING: Risk of scalding!
If the temperature for extra DHW has been set
to in excess of 60 °C or thermal disinfection
has been activated to avoid legionella, the
DHW is heated once to in excess of 60 °C or
65 °C. The factory setting for DHW
temperature depends on the installed heat
pump. There is a risk of scalding at the draw-
off points if the temperature is set higher than
this.
▶ Make sure that a thermal mixer is installed.
If in doubt, ask your installer.
There is a factory-set custom time program for DHW heating.
Alternatively, DHW heating can be constant ( Chapter 5.3.2,
page 20).

5.3.1 Setting the operating mode for DHW heating

In the default settings, DHW is heated based on a separate time
program.
• If Own time program is set, the DHW operating mode is
active daily from 05:00 (from 07:00 on Saturdays and
Sundays) until 23:00 (time program default settings).
Menu: Operating mode
The following table shows you how to adapt the settings for DHW heating.
Operating the appliance
Selecting and setting the time program for DHW heating
▶ If the standard display is active, press the DHW key.
▶ Turn the selector to mark the Own time program menu item and press the selector.
The time program for DHW is activated. The switching times can be set separately in
the DHW > Time program > My DHW time program menu (operation as described
in Chapter 5.2.2 starting on page 15). The DHW temperatures set for the operating
modes are valid in the time slots.
Table 19 Adapting the settings for DHW heating
6 720 817 986 (2015/07)
CLIMATE CONTROL SYSTEMS
Menu item
Operating
mode
Table 17 Operating mode for DHW heating

5.3.2 Setting the time program for DHW heating

The time program for DHW heating can be adjusted in this
menu.
Menu: Time program
Menu item
My DHW time
program
Reset prog.
Table 18 Time program settings for DHW
VOGEL NOOT
&
description
• DHW heating can be linked to the time
program for the heating system (As
heating circuit time program).
• You can use the Own time program to
set a time program for DHW heating that
works independently of the time
program for the heating system.
• If Always on - DHW red. or Always on -
DHW is set, DHW heating is active
constantly. Your installer can set the
temperatures for operating modes DHW
and DHW reduced (lower DHW
temperature than for DHW mode).
• If deactivated, there is no DHW heating/
maintenance of the temperature.
description
6 switching times can be set for each
day or group of days. One of the up to
three operating modes can be assigned
to each switching time in automatic
mode. The minimum duration of a time
slot between two switching times is
15 minutes.
The time program for the DHW system
is reset to the default settings with this
menu item.
Result
6 720 815 237-41.1O
HPC 400