Viessmann Vitosol100 - Page 90

4.8Additional Vitosolic 200 functions
90
VITOSOL
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.
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.
Time switches
For the thermostat function or T control
unit, three time windows can be activated.
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.
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.
All sensors, which are already used, may
be allocated as sensors, without affecting
their function in the respective system
design.
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
Permissible ambient
temperature
H in use: 0 to +40ºC
H during storage
and transport: 20 to +70ºC
Setting values for
volume proportion
ethylene glycol: 0 to 70
%
Volume measuring part
Volume measuring part
06 15 25
a mm 205 205 225
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
.
P
max.
T
max.
V
max.
Q
t
V
min.
p
v
V
.
V
.
V
.
litres/pulse
DN
R
R
bar
ºC
m
3
/h
m
3
/h
l/h
l/h
bar
1
20
1"
¾"
16
110
0.6
1.2
48
12
0.1
10
20
1"
¾"
16
110
1.5
3
120
30
0.1
25
20
1"
¾"
16
110
2.5
5
200
50
0.1
5822135 GB
a
75
100