Buderus Logano G315, Installation And Service Instructions Manual

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7
Boiler block assembly
Logano G315 – 6 720 817 939 (2017/02) 12
If you do not observe the recommended minimum clearance (

Fig. 5),
you will not be able to use the cleaning kit (accessory). Alternatively
shorter cleaning devices or wet cleaning may be used.
6.3 Installing the boiler on a boiler base or foundation
When setting up the boiler, we recommend you observe the specified
wall clearances for improved installation and maintenance (

Fig. 5).
It is advisable to place the boiler on a 2 – 4 inch (50 – 80 mm) tall base
(

Fig. 6, [1]). The base should be completely flat and level. The front
edge of the boiler should be flush with the edge of the base.
A concrete foundation can be constructed on-site. When building the
foundation, a 3 15/16 x 1 31/32 x 5/16 inches (100 x 50 x 8 mm) steel
angle or 3 15/16 x 13/64 inches (100 x 5 mm) steel flat should be
incorporated (

Fig. 6 and Tab. 9).
Fig. 6 Base dimensions
7 Boiler block assembly
Fig. 7 Boiler heat exchanger
Key to Fig. 7:
[1] Boiler base or foundation
[2] Draining
[3] Exhaust Manifold
[4] Rear section
[5] Return connection
[6] Supply connection
[7] Intermediate sections
[8] Tie rod
[9] Directional arrow
[10] Front section
[11] Burner door with burner plate
Depending on the type of delivery, we distinguish between delivery
unassembled and as a
ready assembled block . When delivered as a
ready-assembled block, the boiler is assembled and checked for leaks
prior to despatch. If, because of physical limitations, a boiler block
cannot be assembled as a complete unit, delivery unassembled would
enable assembly on site.
For details of assembling the remainder of the boiler if the heat
exchanger is delivered pre-assembled , see

Chapter 7.3, page 16.
Boiler capacity Clearance A in inches (mm)
MBH (kW) Boiler sections Recommended Minimum
358 – 686
(105 – 230)
5 – 9 59 (1500) 39-3/8 (1000)
Table 8
Number of boiler
sections
L1
(base)
in inch (mm)
L2
(steel section)
in inch (mm)
5 38-3/16 (970) 28-3/4 (730)
6 44-31/64 (1130) 35-1/32 (890)
7 50-25/32 (1290) 41-21/64 (1050)
8 57-3/32 (1450) 47-41/64 (1210)
9 63-25/64 (1610) 53-15/16 (1370)
Table 9 Foundation dimensions and lengths of steel flats or steel angles
6 720 642 621-01.1o
L
2
(540 mm)
(~ 90 mm)
(100 mm)
(~ 880 mm)
(~ 50...80 mm)
2...4"
L
1
34 3/4"
1
3 1/2"
4"
21 1/4"
(100 mm)
4"
WARNING: Risk of injury from improperly secured
boiler sections.
▶ Use only suitable means of transportation when
handling the boiler sections, e.g. a heavy duty hand
truck. When handling, secure the boiler sections to
the means of transport to prevent them slipping.
6 720 642 621-03.1o
2
1
3
4
5
6
8
8 7
9
11
10