Viessmann VITOSOL SERIES Technical Manual page 55

DHW cylinders
(cont.)
VA
TH
TE
A
SPR2
A
Lower indirect coil (solar thermal system)
The connections HV and HR
s
DHW cylinder
E Drain
HR Heating water return
HR Heating water return, solar thermal system
s
HV Heating water flow
HV Heating water flow, solar thermal system
s
Dimensions
a
b
c
Cylinder temperature sensor for solar operation
Arrangement of cylinder temperature sensor in the heating water
return HR
s
A Cylinder temperature sensor (standard delivery of solar control
unit)
B Threaded elbow fitting with sensor well (standard delivery)
Performance factor N
L
To DIN 4708.
Upper indirect coil.
Cylinder storage temperature T = cold water inlet temperature +50 K
cyl
+5 K/-0 K .
VITOSOL
WW/HVs/HRs
HV/SPR1
Z
HR
KW/E
are located on the top of the
s
mm
631
780
1705
b
343
HVs
KW Cold water
SPR1 Cylinder temperature control sensor
SPR2 Solar thermal system cylinder temperature sensor
TE Sensor well for lower thermometer
TH Thermometer
VA Protective magnesium anode
WW DHW
Z DHW circulation
Performance factor N at heating water flow
L
temperature
90 °C
80 °C
70 °C
10
1.6
1.5
1.4
VIESMANN
55