Technical data

Note:
Heat up time based on a primary flow rate of
15 l/min at 80 °C.
Temperature rise is from 15 °C to 65 °C.
2 Technical data
uniSTOR GB4
VIH GB 125 S VIH GB 155 S VIH GB 180 S VIH GB 210 S VIH GB 260 S VIH GB 310 S Unit
Size 125 155 180 210 260 310 litres
Maximum water supply pressure 10 bar
Operating pressure 3.5 bar
Pressure reducing valve 3.5 bar
Expansion relief valve 6.0 bar
Expansion vessel charge pressure 4.0 bar
T/P valve 95 / 7.0 °C/bar
Net weight 28 30 33 39 44 49 kg
Weight (full) 145 175 205 245 310 340 kg
Height 969 1179 1339 1499 1789 2109 mm
Cylinder connections:
Cold mains inlet 22 mm compression
DHW outlet 22 mm compression
Balanced pressure cold water outlet 22 mm compression
Secondary return G
3
/
4
Primary flow 22 mm compression
(on 2 port valve)
Primary return 22 mm compression
Electrical connections:
3 kW Immersion heater
(according ENBS 60335) 230/240 V, 50 Hz
Length of Immersion heater 430 mm
Three port valve 230/240 V, 50 Hz
Cylinder thermostat 230/240 V, 50 Hz
Coil Specifications:
Heat loss 1.4 1.7 1.8 1.9 2.1 2.4 kW/24h
Heat up time 21 23 24 27 35 47 min
Recovery 18 18.5 19 22 30 42 min
2 Technical data