7 x Technical Data
38
BA ROTEX GSU - 09/2007
Standard data
* Item number see Fig 7-4
Type (1)* GSU 320 GSU 520S GSU 530S GSU 535
Parameter Unit
Total storage capacity Litres 300 500 500 500
Empty weight (11)* kg 86 124 128 128
Total filled weight kg 386 624 628 628
Dimensions (L x B x H) cm 59.5 x 61.5 x 159 79 x 79 x 181 79 x 79 x 181 79 x 79 x 181
Maximum permissible storage water temperature °C 85 85 85 85
Stand-by heating power kWh/24 h 2,4 1,8 1,8 1,8
Max. operating pressure, drinking water P
MW
(14)* bar6666
Drinking water heat exchanger material
Stainless steel
1.4404
Stainless steel
1.4404
Stainless steel
1.4404
Stainless steel
1.4404
Drinking water heating
Drinking water capacity Litres 19,0 24,5 24,5 24,5
Drinking water heat exchanger surface m
2
5,5 5,5 5,5 5,5
Average specific heat capacity W/K 1820 2470 2470 2470
Storage tank charging heat exchanger (stainless steel)
Water capacity heat exchanger Litres 10,0 10,4 10,4 19,5
Heat exchanger surface area m
2
2,1 2,3 2,3 4,3
Average specific heat capacity W/K 910 1040 1040 1950
Solar heating support (stainless steel)
Heat exchanger surface area m
2
— 0,43 0,43 —
Average specific heat capacity W/K — 200 200 —
Pipe connections
Cold and hot water Inch 1" MT 1" MT 1" MT 1" MT
Heating inflow and return flow (with ball cock) Inch 1" FT 1" FT 1" FT 1" FT
Tab. 7-2 Standard data of ROTEX GasSolarUnit
Type (1)* GSU 320 GSU 520S GSU 530S GSU 535
Parameter Unit
Efficiency characteristic N
L
according to DIN
4708
1)
2,0 2,1 2,2 4,4
D value (specif. water flow) according to
EN 625
2)
(15)* l/min27303139
Continuous rating Q
D
according to DIN 4708 kW 20 20 30 35
Continuous output
1)
l/h 440 615 630 860
Hot water quantity without reheating at 15 l/min
draw-off rate
(T
KW
= 10°C / T
WW
= 40°C / T
SP
= 60°C)
Litres 200 220 220 412
Hot water quantity when reheating at nominal
output and with 15 l/min draw-off rate
(T
KW
= 10°C / T
WW
= 40°C / T
SP
= 60°C)
Litres 360 500 1180 unlimited
Short-term water quantity in 10 min
3)
Litres 200 210 215 310
Tab. 7-3 Thermal output data for ROTEX GasSolarUnit
1) Recharging with nominal output, flow temp. T
V
=80 °C, storage tank starting temp. T
SP
=65 °C, cold water temp. T
KW
=10 °C, hot water temp. T
WW
=45 °C.
2) The specific water flow according to EN 625 is the drinking water flow with an average temperature increase of 30 K that the ROTEX GSU can deliver with two
consecutive draw-offs each lasting 10 minutes assuming a charging temp. of 65 °C. In this case a 20 minute waiting time between draw-offs is assumed in
accordance with the standards. The ROTEX GSU achieves this value even after shorter waiting times.
3) Recharging with nominal output, storage tank starting temp. T
SP
=60 °C, cold water temp. T
KW
=10 °C, hot water temp. T
WW
=40 °C.
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