Buffer storage tanks
800 –1,500
7.2
36
O
I
A
B
C
D
E
F
G
H
I
J
K
L
M
N
Buffer storage tanks without, with one (-1) or 800 / 800-1 / 1,000 / 1,000-1 / 1,500 / 1,500-1 /
two (-2) smooth-pipe heat exchangers 800-2 1,000-2 1,500-2
1,480 / 1,473 /
Real volume according to EN 12897 [l] 804 / 800 / 795 999 / 993 / 988 1,467
Fire protection class of insulation according to DIN 4102-1 [-] B2 B2 B2
Total height including insulation [mm] 1,900 2,310 2,190
Diameter without insulation [mm] 790 790 1,000
Diameter with insulation [mm] 1,015 1015 1,315
Tilt height [mm] 1,925 2,280 2,200
Weight [kg] 171 / 211 / 244 243 / 293 / 333 232 / 300 / 343
Energy efficiency class according to EU regulation no. 812/2013 [-] A+ A+ A+
Heat retaining loss according to EN 12897 [W] 51 55 63
Storage tank pmax / tmax [bar] / [°C] 3 / 95 3 / 95 3 / 95
Smooth-pipe heat exchanger* bottom surface / volume [m²] / [l] 2.6 / 17 3.3 / 21.3 4.5 / 29.7
Smooth-pipe heat exchanger* top surface / volume [m²] / [l] 2.2 / 14.2 2.6 / 17 2.8 / 18.6
Smooth-pipe heat exchanger* pmax / tmax [bar] / [°C] 10 / 130 10 / 130 10 / 130
Return heat generator (Rp 1½") A [mm] 255 255 312
Return smooth-pipe heat exchanger** bottom (Rp 1") B [mm] 413 363 470
Freely available (Rp 1½") C [mm] 694 832 804
Flow smooth-pipe heat exchanger** bottom (Rp 1") D [mm] 893 1,063 1,110
Return smooth-pipe heat exchanger** top (Rp 1") E [mm] 1,025 1,293 1,250
Freely available (Rp 1½") F [mm] 1,133 1,409 1,358
Flow smooth-pipe heat exchanger** top (Rp 1") G [mm] 1,425 1,773 1,650
Flow heat generator (Rp 1½" ) H [mm] 1,572 1,985 1,788
Ventilation (Rp 1¼") I [mm] 1,833 2,246 2,106
Freely available (Rp 1½") J [mm] 1,572 1,985 1,788
Freely available (Rp 1½") K [mm] 1,133 1,409 1,358
Heating element (Rp 1½") L [mm] 963 1,170 1,170
Freely available (Rp 1½") M [mm] 694 832 804
Freely available (Rp 1½") N [mm] 255 255 312
Sensor sleeve (Ø 6 mm) O [mm] various heights various heights various heights
* if there is one
** if there is one, otherwise freely
available (Rp 1")
Fresh-water, Combined and Buffer Storage Tanks
GB