Viessmann Vitosol
100 Technical Manual page 90

4.8 Additional Vitosolic 200 functions
Thermostat function, DT control unit and time switches
These functions are only available subject to the inputs and outputs not being allocated in the basic design.
Thermostat function
Subject to time, the corresponding relay
switches ON if the start−up temperature is
reached, and switches OFF if the actual
temperature reaches the shutdown
temperature.
Heat statement
The energy statement can be carried out without heat meter extension kit (accessory).
The energy statement is calculated from
the temperature differential between the
HM flow and the HM return temperature
sensor and
H the selected flow rate, excluding
extension kit.
H the flow rate recorded by the volume
measuring device, including extension
kit.
Heat meter extension kit
comprising:
H Temperature sensors PT 500 (2 pieces)
incl. sensor well, R ½", 45 mm long
H For recording the flow rate of the
water:glycol mixture:
Heat meter 06
or
Heat meter 15
or
Heat meter 25
Volume measuring part
Volume measuring part
a
Pulse rate
Internal diameter
Connection thread at the meter
Compression fitting thread
Max. operating pressure
Max. operating temperature
Nominal flow rate
Highest flow rate
Threshold $3 %
Lowest flow rate
.
Flow rate at approx. h V
90
DT control unit
Subject to time, the corresponding relay
switches ON if the start−up temperature
differential is reached, and switches OFF if
the actual temperature drops below
shutdown temperature differential.
Note
In conjunction with the variable speed
pumps, the maximum flow rate is
selected and the reduced flow rate
calculated by means of the speed
controller.
Permissible ambient
temperature
H in use: 0 to +40 ºC
H during storage
20 to +70 ºC
and transport:
Setting values for
volume proportion
ethylene glycol: 0 to 70 %
06
mm 205
1
litres/pulse
DN 20
R 1"
R ¾"
P bar 16
max.
ºC
T 110
max.
.
3
m /h 0.6
V
.
3
V m /h 1.2
V
max.
Q l/h 48
t
.
V V l/h 12
min.
Dp
bar 0.1
v
Time switches
For the thermostat function or DT control
unit, three time windows can be activated.
All sensors, which are already used, may
be allocated as sensors, without affecting
their function in the respective system
design.
15 25
205 225
10 25
20 20
1" 1"
¾" ¾"
16 16
110 110
1.5 2.5
3 5
120 200
30 50
0.1 0.1
a
VITOSOL