Boiler Foundation - Bosch UT-L 1 Technical Manual

78 | Fitting
10.5.5

Boiler foundation

The UNIMAT UT-L boiler is equipped with robust base
supports consisting of channel sections for even load
distribution. If a foundation is planned, it should not go
as far as the side walls of the boiler room because of this
sound insulation.
If suitable boiler mounts are planned for sound
insulation ( page 77), ensure the foundation is level to
within ± 1 mm. This guarantees an even load on the
boiler mounts.
The following requirements of the foundation must be
met:
• Ensure that the floor of the installation area is
perfectly even (tolerance with reference to
DIN 18202) and has sufficient load-bearing capacity.
• Cover any floor channels and provide drainage
facilities.
• When calculating the load-bearing capacity of the
foundation, take account of the maximum operating
weight of the components concerned. When
determining the operating weight, take account of
additional components (e.g. control panel, burner,
silencer, flues, etc.) and include their weight. The
operating weight is the weight of the components
when filled.
• Measure the operating weight of the boiler at the
front and back feet of the foundation. Please note that
the back boiler foot (seen from the burner side) is
designed as a fixed point on the longitudinal support.
The front boiler foot is designed as a movable bearing,
i.e. the boiler expands towards the front when
heating up.
UNIMAT UT-L boiler
Boiler size
UT-L 1
UT-L 4
UT-L 10
UT-L 14
UT-L 18
UT-L 24
UT-L 28
UT-L 30
UT-L 34
UT-L 40
UT-L 42
UT-L 46
UT-L 50
UT-L 54
UT-L 58
UT-L 60
UT-L 64
Table 39 Boiler foundation dimensions for UNIMAT UT-L boilers; the dimensions specified are recommended values and
may vary from system to system.
6 720 807 794 (2013/04)
Foundation
Length
L
1
Boiler size [mm]
– 1850
UT-L 2 2200
UT-L 6 2450
UT-L 8 2660
UT-L 12 3130
UT-L 16 3160
UT-L 20 3510
UT-L 22 3920
UT-L 26 4020
UT-L 32 4380
UT-L 36 4580
UT-L 38 4750
UT-L 44 5150
UT-L 48 5420
UT-L 52 6100
UT-L 56 6490
UT-L 62 6890
• Every component must be levelled.
• If separation is required between the installation
space and the system for sound insulation, place
sound insulating strips below before installing the
system.
• If the boiler or system components are installed on a
support base, use suitable spring systems as
supports and to absorb operational vibrations.
L
2
≥ 50
Fig. 55 Boiler foundation for UNIMAT UT-L boilers
Base frame
Width Length Width
B L
1 2
[mm] [mm] [mm]
810 1750
1010 2100
1010 2350
1030 2560
1230 3030 1130
1250 3060 1150
1250 3410 1150
1350 3820 1250
1610 3920 1510
1610 4280 1510
1620 4480 1520
1710 4650 1610
1730 5050 1630
1990 5320 1890
1990 6000 1890
2200 6390 2100
2200 6790 2100
B
1
B
2
L
1
B
3
6 720 642 347-69.1il
Channel section
Height Width
B H B
2
[mm] [mm]
710 120 55
910 120 55
910 120 55
930 160 65
160 65
200 75
200 75
200 75
220 80
220 80
240 85
240 85
280 95
280 95
280 95
320 100
320 100
3
UNIMAT