Buderus SB615 - Page 8

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Information about the appliance
Logano plus SB615 Gas - We reserve the right to make any changes due to technical modifications.
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System temperatures 50/30 °C
Rated output
Full load kW 145 185 240 310 400 510 640
Partial load kW 59.2 75.6 97.8 126.3 162.4 208.8 261.5
Logatop VM
Full load kW 145 185 230 310 – – –
Partial load kW 51.8 66.1 82.1 110.6 – – –
Flue gas temperature
6)
Full load °C 40 40 46 46 42 44 44
Partial load °C 33 33 35 34 37 35 32
Flue gas mass flow rate
Full load kg/s 0.0552 0.0704 0.0928 0.1200 0.1528 0.1969 0.2466
Partial load kg/s 0.0217 0.0277 0.0360 0.0465 0.0603 0.0770 0.0958
Logatop VM
Full load kg/s 0.0633 0.0808 0.1010 0.1350 – – –
Partial load kg/s 0.0220 0.0283 0.0352 0.0474 – – –
System temperatures 80/60 °C
Rated output
Full load kW 132.7 169.2 218.9 282.8 365.2 467.9 585.4
Logatop VM
Full load kW 132.7 169.2 210.7 282.8 – – –
Partial load kW 50.6 64.5 80.2 108.1 – – –
Flue gas temp.
6)
Full load °C 66 66 71 71 68 69 71
Partial load °C 45 45 45 44 45 44 44
Flue gas mass flow rate
Full load kg/s 0.0579 0.0738 0.0956 0.1235 0.1592 0.2040 0.2555
Partial load kg/s 0.0231 0.0295 0.0383 0.0494 0.0637 0.0816 0.1022
Logatop VM
Full load kg/s 0.0633 0.0808 0.1010 0.1350 – – –
Partial load kg/s 0.0220 0.283 0.0352 0.0474 – – –
1) In conjunction with Logatop VM.
2) According to EN 1092-1 PN6
3) According to EN 1092-1 PN16
4) With Logano plus SB615 with third party burner
5) Safety limit (High limit safety cut-out). Max. possible flow temperature = safety limit (STB) – 18K.
Example: Safety limit (STB): 100 °C, max. possible flow temperature = 100 - 18 = 82 °C
6) To DIN EN 303. Minimum flue gas temperatures for chimney design calculations in accordance with EN 13394-1 Æ Technical Guide "Boiler
characteristic values for the dimensioning of flue gas systems".
Specifications for Logano plus SB615 Gas
Boiler size Unit 145 185 230
1)
/240 310 400 510 640
Tab. 1 Specification