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4
Set-up and installation
WARNING
Incorrectly erected and installed gas appliances may not
operate properly and are dangerous for the health and
safety of individuals.
▪ The GCU compact must only be set up and installed by
heating engineers authorised and trained by gas or en-
ergy supply companies.
Incorrect set-up and installation would render the manufacturer's
guarantee void. If you have questions, please contact our Technical
Customer Service.
4.1
Dimensions and connection
dimensions
Fig. 4-1
Installation dimensions for flue gas connection on the
rear (for values, see
A
Side view
B
Front view
C
Top view
Gas Combi Unit
Floor-standing gas condensing boiler with integrated heat storage
008.1543899_02 – 04/2019 – EN
Tab.
4-1)
4
Fig. 4-2
Installation dimensions for flue gas connection on the
side or upwards (for values, see
A
Side view
B
Front view
C
Top view
Dim.
GCU compact 3xx
h1
h2
h3
1745
h
R
r1
165
s1
440
s2
s3
s4
435
s
D
t
615
w
595
Tab. 4-1
Connection and installation dimensions of the GCU com-
pact in mm (based on
Fig. 4-16
to
Fig.
4-20)
Set-up and installation
Tab.
4-1)
GCU compact 5xx
1380
1895
1740
2095
130
370
200
300
335
200
790
790
Fig.
4-1,
Fig.
4-2,
Fig.
4-10,
Installation and operating instructions
15
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