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Viessmann VITOTRONIC 200 Manual

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System with heating water/coolant buffer cylinder
A heating water/coolant buffer cylinder can either heat
or cool your heating/cooling circuits.
To heat your home, you must switch on central heating
via the heating water/coolant buffer cylinder. To cool
your home, you must switch on central cooling via the
heating water/coolant buffer cylinder.
Note
■Simultaneous central heating and central cooling is
not possible.
■Central cooling via a separate cooling circuit is not
possible.
Switching on central heating for heating water/
coolant buffer cylinder
1. Extended menu:
2. "System"
3. "Buffer cyl operating mode"
4. "Heating mode"
Switching on central cooling for heating water/
coolant buffer cylinder
1. Extended menu:
2. "System"
3. "Buffer cyl operating mode"
4. "Cooling mode"
Setting the time program for central heating with buffer cylinder
In the time program for central heating with buffer cyl-
inder, you set the time phases in which your buffer cyl-
inder is heated and to what temperatures. In addition,
you specify whether the entire volume of the buffer cyl-
inder or just the top section is heated.
When setting the time program, you select an operat-
ing status for each time phase: See chapter "Operating
status for heating the buffer cylinder".
Note
This time program applies either to a heating water
buffer cylinder or to a heating water/coolant buffer cyl-
inder in heating mode.
Factory setting: One time phase from 00:00 to 24:00 h
for every day of the week with the "Standard" operat-
ing status
■The time phases for heating the buffer cylinder must
cover all time phases for central heating (for all heat-
ing circuits).
■If you switch off heating of the heating water buffer
cylinder with the time program (all time phases are
deleted "- - : - -"), your rooms will not be heated.
■We recommend that the buffer cylinder should be
heated continuously.
1. Extended menu:
2. "System"
3. "Time prog buffer cyl"
4. Set the required time phases and operating status.
To see how to set a time program: See page 23.
Note
■The buffer cylinder is not heated between the time
phases. Only frost protection for the buffer cylinder is
active.
■When setting the time program, please bear in mind
that your heat pump requires some time to heat the
buffer cylinder to the required temperature.
Operating status for heating the buffer cylinder
"Standard"
■The entire volume in the buffer cylinder is heated to
the highest set flow temperature for all connected
heating/cooling circuits.
■The set flow temperature of a heating/cooling circuit
results from the heating curve, the outside tempera-
ture and the required room temperature.
"Reduced"
■The top section of the buffer cylinder is heated to the
highest set flow temperature for all connected heat-
ing/cooling circuits.
■The set flow temperature of a heating/cooling circuit
results from the heating curve, the outside tempera-
ture and the required room temperature.
"Fixd value"
■The entire volume in the buffer cylinder is heated to
a fixed temperature.
Factory setting: 50 °C
Your contractor may have adjusted this value.
■You can utilise the "Fixd value" operating status,
e.g. to heat the buffer cylinder to a higher tempera-
ture with economical night tariff power.
Central heating/central cooling
Central heating/central cooling with buffer… (cont.)
5817913
… 28 …


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Viessmann VITOTRONIC 200 User Manual - German - 112 pages

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