Appendix
0020235300_03 uniSTOR Installation and maintenance instructions
17
C
Technical data
Technical data
–
General
VIH RW GB
500 BES
VIH RW GB
800 BES
Actual volumetric capacity
512.4 l
740.3 l
Hot water volumetric capa-
city in accordance with EN
12897
460 l
635 l
Maximum pressure of the
heating tube coil during op-
eration
0.35 MPa
(3.50 bar)
0.35 MPa
(3.50 bar)
Operating pressure
0.35 MPa
(3.50 bar)
0.35 MPa
(3.50 bar)
Maximum operating pressure
0.7 MPa
(7.0 bar)
0.7 MPa
(7.0 bar)
Pressure of the pressure
reducer
0.35 MPa
(3.50 bar)
0.35 MPa
(3.50 bar)
Opening pressure in the ex-
pansion relief valve
0.6 MPa
(6.0 bar)
0.6 MPa
(6.0 bar)
Temperature and pressure
expansion relief valve
0.7 MPa
(7.0 bar)
0.7 MPa
(7.0 bar)
Temperature and pressure
expansion relief valve
90
℃
90
℃
Load pressure in the expan-
sion vessel
0.3 MPa
(3.0 bar)
0.3 MPa
(3.0 bar)
Maximum temperature of the
heating circuit
95
℃
95
℃
Maximum domestic hot water
temperature
85
℃
85
℃
Heat loss (24 h), energy effi-
ciency class: C
2.52 kWh
3 kWh
Reheating time in accord-
ance with EN 12897
28.6 min
26.17 min
Reheating time (70%)
20 min
18.3 min
Reheating output
50.5 kW
74.5 kW
Flow rate
1,800 l/h
1,800 l/h
Pressure loss in the heat
exchanger
30 mbar
20 mbar
Volume of the heat
exchanger
29.0 l
44.0 l
Surface of the heat
exchanger
4.70 m
²
7.00 m
²
Volume of the expansion
vessel
50 l
80 l
Tilt measurement
1,930 mm
1,950 mm
Net weight
145 kg
237 kg
Weight including heating wa-
ter and domestic hot water
686.4 kg
1,021.3 kg
Technical data
–
Hydraulic connection
VIH RW GB
500 BES
VIH RW GB
800 BES
Diameter of the cold water
supply pipe
1 1/2"
1 1/2"
Hot water outlet
1 1/2"
1 1/2"
Heat generator heating flow
1 1/2"
1 1/2"
Heat generator heating re-
turn
1 1/2"
1 1/2"
Secondary circuit return
3/4"
3/4"
Summary of Contents for uniSTOR VIH SW GB 500 BES
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