Terminology - Viessmann VITOTRONIC 200-H Operating Instructions Manual

Additional Information

Terminology

Setback mode (reduced heating mode)
See "Reduced heating mode".
Heating program
With the heating program you determine whether you
heat your rooms and DHW, or only heat DHW, or whether
you shut down your heating system with frost protection
monitoring.
You can select the following heating programs:
H "Heating and DHW"
The rooms are heated and DHW is provided (winter mode).
H "Only DHW"
DHW is provided but there is no central heating
(summer mode).
H "Standby mode"
Frost protection for the boiler and the DHW tank
is enabled, no central heating, no DHW heating.
Note: No operating program is available for central
heating without DHW heating. When you want
central heating, hot water is generally also required
(winter mode). If you do want just central heating,
select the heating program "Heating and DHW"
and set the DHW temperature to 50° F (10° C)
(see chapter "Setting the DHW temperature"). This
means that you will not heat DHW unnecessarily,
but frost protection of the DHW tank is ensured.
Operating status
In the heating program "Heating and DHW", the operating
status changes from "Standard heating mode" (see page
55) to the operating status "Reduced heating mode"
(see page 56) and vice versa. The times for the operating
status change are defined when the time program is set.
Extension kit for heating circuit with mixing valve
Assembly (accessory) for controlling a heating circuit with
mixing valve.
See "Mixing valve".
Slab curing
Your heating contractor can, for example, enable the
"Slab curing function" for your new installation or extension
to dry out the building. With the slab curing function,
your slab curing is dried in line with the building material
according to a fixed time program (temperature/time
profile).
The slab curing function affects the heating circuits with
a mixing valve:
H All rooms are heated according to the temperature/time
profile.
Your settings for central heating have no effect for the
duration of the building drying.
H DHW heating is carried out (but priority control
is cancelled).
Open flue operation
The combustion air is drawn from the room where
the boiler is installed.
34
Vitotronic 200-H, HK1B Operating
Balanced flue operation
The combustion air is drawn from outside the building.
Reduced heating mode
When you are out or during the night, you can heat
the rooms in reduced heating mode (setback mode).
Set the periods using the time program for central heating.
During these periods, the rooms are heated to a reduced
room temperature.
Reduced room temperature
When you are out or during the night, set the reduced
room temperature (see chapter "Setting the room
temperature").
See also "Reduced heating mode".
Safety valve
A safety device that must be installed by your heating
contractor in the cold water pipe. The safety valve opens
automatically to prevent excess pressure in the
DHW tank.
Solar circuit pump
In conjunction with solar thermal systems.
The solar circuit pump delivers the cooled heat transfer
medium from the DHW tank indirect coil to the collectors.
Set temperature
Default temperature that should be reached; e.g. set DHW
temperature.
Summer mode
Heating program "Only DHW".
At warmer times of the year, i.e. when rooms do not
have to be heated, you can disable heating mode.
The boiler remains operational for DHW heating.
DHW tank primary pump
Circulation pump for heating the DHW in the DHW tank.
Drinking water filter
A device that removes solids from the water.
The drinking water filter is installed in the cold water pipe
upstream of the DHW tank or the instantaneous water
heater.
Weather-compensated mode
In weather-compensated mode, the heating supply
temperature is controlled according to the outside
temperature.
This means that no unnecessary heat is generated
in order to heat the rooms to the set room temperature
you selected.
The outside temperature is captured and transmitted
to the control unit by a sensor fitted outside the building.
DHW circulation pump
The DHW circulation pump transports the hot water
around a circuit between the DHW tank and the draw-
off points (e.g. hot tap). This makes hot water available
quickly at the draw-off point.