Selecting A Time Program (Switching Times) - Viessmann Vitotronic 100, HC1 Operating Instructions And User's Information Manual

Selecting Constant DHW Heating
Setting time programs (switching times)
(continued)
Heating system without DHW recirculation pump
Note
The control unit is set up so that the setting for DHW heating applies to all heating
circuits. If you want to make changes, contact your local heating contractor.
DHW heating can be enabled / disabled up to four times per day (four time
phases).
Automatic mode (factory default setting)
DHW heating is enabled in parallel to the central heating program of the first
available heating circuit, but starts 30 min. earlier (from 05:30 to 22:00 hrs.).
Individual time programs
You can set up individual time programs if you do not wish to operate in automatic
mode.
You can select identical time programs for every day or individual programs for
each day.
When setting time programs, bear in mind that your heating system requires some
time to heat the DHW tank to the required temperature.
For time programming steps, see pages 26. For a sequence of steps to delete a time
phase, see page 27.
Heating system with DHW recirculation pump
Note
The control unit is set up so that the setting for DHW heating applies to all heating
circuits. If you want to make changes, contact your local heating contractor.
The DHW recirculation pump transports hot water through a circuit between the
DHW tank and the draw-off points to deliver DHW to the taps as quickly as
possible.
DHW heating and the DHW recirculation pump can be enabled / disabled up to four
times per day (four time phases).
Automatic mode (factory default setting)
The DHW heating and the DHW recirculation pump are enabled in parallel to the
central heating time program of the first available heating circuit, however
commences 30 min. earlier (from 05:30 to 22:00 hrs.).
Individual time programs
You can set up individual time programs if you do not wish to operate in automatic
mode.
You can select identical time programs for every day or individual programs for
each day.
Also, enabling the DHW recirculation pump is only sensible for those times when
DHW is actually drawn.
The following explains the setting up of a time program using DHW heating uw by
way of an example. Proceed the same for the DHW recirculation pump up time
program.
When setting time programs, bear in mind that your heating system requires some
time to heat the DHW tank to the required temperature.
For time programming steps,see pages 26. For a sequence of steps to delete a time
phase, see page 27.
Selecting DHW Heating
25