Cascade Kits - Buderus Logamax plus GB162 Applications Manual

GB162 Applications Manual

2.3 Cascade Kits

Buderus offers cascade systems in TL and TR configurations for
up to 4 boilers. For cascades of 5 to 16 boilers use single boiler
manifolds.
TL - Inline installation
All boiler assemblies are installed in one line, enabling an
easy-to-monitor installation in a narrow room.
TR - Back-to-back installation
The boiler assemblies are installed back-to-back on both
sides of a free standing frame, to create a compact installation
which ideally suits rooms without available wall space and
ensures the best possible access to all boilers.
The relevant configuration can be selected on the basis of
the performance required (see table 2).
System gross output
Natural
LPG
gas
k.Btu/hr k.Btu/hr kW
290 270 80
333 315 100
580 540 160
623 585 180
666 630 200
870 810 240
913 855 260
956 900 280
999 945 300
1,160 1,080 320
1,203 1,125 340
1,246 1,170 360
1,289 1,215 380
1,332 1,260 400
Table 2 Cascade selection
Low loss TL- confi guration
header
2½" TL2, TL3
3"
4"
Table 3 Low loss header configuration
Logamax plus GB162 applications manual | 03.2013
Number of
Cascade
boilers
system options
GB162
TL = inline
TR = back-to-
80
back
kW
Single installation 1
Single installation –
TL2 or TR2 2
TL2 or TR2 1
TL2 or TR2 –
TL3 or TR3 3
TL3 or TR3 2
TL3 or TR3 1
TL3 or TR3 –
TL4 or TR4 4
TL4 or TR4 3
TL4 or TR4 2
TL4 or TR4 1
TL4 or TR4 –
TR- confi guration
(inline) (back-to-back)
TR2
TL4 TR3, TR4
5 boilers and more
The Logamax plus GB162 cascade system can be installed
in 2 different configurations (fig. 5).
The gas connection can be made to either side of the
boilers, independent of the supply and return connections.
Fig. 5 Cascade system configuration varieties
100
kW
–
1
–
1
2
–
1
2
3
–
1
2
3
4
Technical specifi cations are subject to change without prior notice
TR configuration
TL configuration
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