NOTE: Heat up time based on a primary ow rate of 15 l/min at 82 °C.
Temperature rise is from 15 °C to 65 °C for 70 % of the cylinder volume.
SS 115 SS 150 SS 175 SS 200 SS 250 SS 300 Unit
Size 115 150 175 200 250 300 litres
Nominal DHW ow from
GW 115/150/175/200
GW 250/300
15 l/min @ 60°C
20 l/min @ 60°C
Max. water supply pressure
10 bar
Expn. vessel charge pressure
4 bar
Operating pressure
3.5 bar
Pressure reducing valve
3.5 bar
Expansion relief valve
6.0 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 pres. cold water outlet 22 mm compression
DHW secondary return
G
3
/
4
CH ow 22 mm compression (on 2 port valve)
CH return 22 mm compression
Electrical connections:
3 kW Immersion heater
230/240 V. 50 Hz
Two port valve
230/240 V. 50 Hz
Cylinder thermostat
230/240 V. 50 Hz
Coil Specications:
Heat loss
1.7 1.9 2.0 2.1 2.3 2.5 kW/24h
Heatup time
23 25 26 30 38 49 min
Recovery
20 21 23 27 33 44 min
SS 300
SS 250
SS 200
SS 175
SS 150
SS 115
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