Boiler rating
Unit
145
185
240
310
400
510
640
Max. gas input
[MBtu/h]
506
644
835
1080
1393
1776
2228
Rated output (gross output)
[MBtu/h]
484
612
791
1022
1317
1678
2104
IBR Net
[MBtu/h]
421
532
688
889
1145
1459
1830
Thermal efficiency
[%]
95.6
95.0
94.8
94.6
94.5
94.5
94.4
Combustion efficiency
[%]
97.1
96.7
96.5
96.4
96.3
96.2
96.2
Length
L
[inch]
68 3/4
68 3/4
70
70
75-1/4
Length
L
K
[inch]
60
61
61
66-1/2
Height H
[inch]
54-1/4
55-1/2
63-1/2
69-1/2
Width B
[inch]
35-1/2
38-1/2
38-1/2
43-1/2
Boiler breech inner diameter ØAA [inch (mm)]
7" (183)
8" (203)
10" (253)
12" (303)
Height
H
AA
[inch]
12
12
13
15
Weight approx.
[lbs]
1709
1725
1866
1914
2154
2845
2900
Boiler return
RK1
[°F]
149
176
212
212
Boiler return
RK2
[°F]
104
149
149
176
Flue gas temperature
[°F]
1
104
104
115
115
108
111
111
[°F]
2
151
151
160
160
154
156
160
Available flue pressure
[inch W.C.]
Varies depending on burner
Flue gas back-pressure
[inch W.C.]
0,48
0,62
0,88
0,96
1,20
1,43
1,77
Tab. 3
Specifications
1
Flow/return temperature 40 °C/30 °C.
2
Flow/return temperature 75 °C/60 °C.
NOTE
The SB 615/145 and SB 615/185 boilers
are factory-fitted with a stainless steel flue
pipe reducer made by Heat Fab. The flue
connection is reduced from 7" to 6".
All other models require a flue pipe
connector approved for the installation site.
Specifications, dimensions and connections
5
Logano plus SB615 - Technical specifications are subject to change without prior notice.
9