78
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Fitting
UNIMAT
6 720 807 794 (2013/04)
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.
• 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.
Fig. 55 Boiler foundation for UNIMAT UT-L boilers
≥
50
≥
50
B
3
B
1
B
2
L
2
L
1
6 720 642 347-69.1il
UNIMAT UT-L boiler
Foundation
Base frame
Channel section
Length
L
1
Width
B
1
Length
L
2
Width
B
2
Height
H
Width
B
3
Boiler size
Boiler size
[mm]
[mm]
[mm]
[mm]
[mm]
[mm]
UT-L 1
–
1850
810
1750
710
120
55
UT-L 4
UT-L 2
2200
1010
2100
910
120
55
UT-L 10
UT-L 6
2450
1010
2350
910
120
55
UT-L 14
UT-L 8
2660
1030
2560
930
160
65
UT-L 18
UT-L 12
3130
1230
3030
1130
160
65
UT-L 24
UT-L 16
3160
1250
3060
1150
200
75
UT-L 28
UT-L 20
3510
1250
3410
1150
200
75
UT-L 30
UT-L 22
3920
1350
3820
1250
200
75
UT-L 34
UT-L 26
4020
1610
3920
1510
220
80
UT-L 40
UT-L 32
4380
1610
4280
1510
220
80
UT-L 42
UT-L 36
4580
1620
4480
1520
240
85
UT-L 46
UT-L 38
4750
1710
4650
1610
240
85
UT-L 50
UT-L 44
5150
1730
5050
1630
280
95
UT-L 54
UT-L 48
5420
1990
5320
1890
280
95
UT-L 58
UT-L 52
6100
1990
6000
1890
280
95
UT-L 60
UT-L 56
6490
2200
6390
2100
320
100
UT-L 64
UT-L 62
6890
2200
6790
2100
320
100
Table 39 Boiler foundation dimensions for UNIMAT UT-L boilers; the dimensions specified are recommended values and
may vary from system to system.