Weather-Compensated Control - Viessmann VITOTRONIC 200 Service Instructions Manual

Function description
Heating circuits/cooling circuits
Heating/cooling circuit
Mixer
Room temperature sensor in Vitotrol 200-A/
200-RF
Room temperature sensor cooling or room
temperature sensor in Vitotrol 200-A/200-RF
Heating circuit pump
Connection to heat pump control unit
■
Connection to mixer extension kit
■
Heating water buffer cylinder
Heating water/coolant buffer cylinder
System flow temperature sensor (F13)
NC mixer, part of NC-Box (accessories)
Flow temperature sensor, cooling circuit
(F14)
Contact humidistat for cooling mode
X Present/required
Not required, but possible
0
Not possible
—
Note
The control characteristics of the heating circuit with
mixer with directly controlled mixer motor can be
adjusted with "Runtime mixer heating circ 2015".

Weather-compensated control

The heat pump control unit determines the set flow
temperature from the current set room temperature
("Standard room temperature 2000" or "Reduced
room temperature 2001"), and the adjusted outside
temperature according to the set heating/cooling
curve.
Not possible in conjunction with the installation kit with mixer ("Type of assembly kit 7044" to "1")
*1
If no buffer cylinder is installed, the secondary circuit flow temperature sensor can also be used ("Enable flow tempera-
*2
ture sensor cooling circuit 7109" set to "0").
50
(cont.)
Controlled directly
A1/HC1 M2/HC2
—
0
—
(212.2) X (225.1)
0
—
0
/
0
0
X
X *2
X
As the heating or cooling demand, the heat pump
receives the maximum/minimum value of the demand
from all heating/cooling circuits.
The flow temperature of the heating circuit without
mixer may consequently rise higher than necessary for
central heating. For central cooling in conjunction with
a heating water/coolant buffer cylinder, the flow tem-
perature for this heating/cooling circuit may be lower
than necessary.
Level and slope of these curves can be adjusted with
the following parameters:
Curve
Heating curve
All system configu-
■
rations
Cooling curve
Without buffer cyl-
■
inder
With heating water
■
buffer cylinder
With heating wa-
■
ter/coolant buffer
cylinder
Controlled via
KM-BUS
M3/HC3
X X
0 0
— —
—
X
—
X *1 X
X
X *1
0 0
0 0
— —
X X
Level
"Heating
curve level
2006, 3006,
4006"
"Cooling
curve level
7110"
"Cooling
curve level
2040, 3040,
4040"
Separate cool-
ing circuit
SKK
—
—
X
—
—
—
—
—
0
X
X
Slope
"Heating
curve slope
2007, 3007,
4007"
"Cooling
curve slope
7111"
"Cooling
curve slope
2041, 3041,
4041"