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10 | Technical description
3.2
UNIMAT UT-L boiler
3.2.1
Version overview
The conventional UNIMAT UT-L boiler can be fitted with
a flue gas heat exchanger to increase efficiency and
reduce the fuel required. The flue gas heat exchanger
can be supplied as an integrated version (integrated in
the flue gas collector chamber) or as a stand-alone
version (for installation downstream of the boiler). You
Fig. 7
Function principle of the UNIMAT UT-L boiler with flue gas heat exchanger
[1]
Burner door
[2]
Safety valve connector ( Fig. 51, page 73)
[3]
Water guide system
[4]
Return ( Fig. 50, page 72 and Fig. 53, page 76)
[5]
High grade insulation without thermal bridges
[6]
Flow ( Fig. 49, page 71)
[7]
Hot gas reversing chamber
[8]
Protective aluminium casing
[9]
Heat exchanger flow
6 720 807 794 (2013/04)
1
2
18
17
16
can choose between a galvanised steel version of the
heat exchanger bundle (ECO 7; without the use of
condensing technology) and a version of the heat
exchanger bundle in stainless steel (ECO 6; with the use
of condensing technology). The heat exchanger is
generally designed for modular construction. This means
the most suitably sized heat exchanger, or number
thereof, for the project in question can be chosen on an
individual basis.
6
3
4
5
15
[10] Heat exchanger
[11] Heat exchanger return
[12] Condensate connector
[13] inspection aperture
[14] Drain connection ( Fig. 56, page 79)
[15] First secondary heating surface (second pass)
designed as a double row
[16] Second secondary heating surface (third pass)
[17] Combustion chamber (first pass)
[18] Blast tube
Inspection aperture on the water side is
optional.
7
8
9
10
11
12
13
12
14
6 720 642 347-04.1il
UNIMAT
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