28 Installation and maintenance instructions 0020308118_05
Technical data – gas isolation valves
Tech-
nical
data in
accord-
ance
with EN
331
Article
number
082778
15–15
mm
Article
number
0020325741
15–15 mm
Test
nipple
Article
number
082786
15–22
mm
Article
number
0020325742
15–22 mm
Test
nipple
Nominal
diameter
DN 8 DN 8 DN 12 DN 12
Pressure
class
(MOP)
0.5 0.5 0.5 0.5
Tem-
perature
class
-20 °C -20 °C -20 °C -20 °C
Manual
operation
part
Cannot
be re-
moved
Cannot be
removed
Cannot
be re-
moved
Cannot be
removed
Flow
direction
See
product
See
product
See
product
See
product
Date of
manufac-
ture
See
product
See
product
See
product
See
product
Cert-PIN 755170 776439 755170 776439
7.4 Installing the hot and cold water connection
Validity: Product with integrated hot water generation
1. Make the water connections as shown in accordance
with the relevant standards.
2. Ensure correct water pressure and flow requirements
and that any expansion can be accommodated with
the cold supply pipe work.
7.5 Connecting the domestic hot water cylinder
Validity: Product with connected domestic hot water cylinder
▶ When connecting the domestic hot water cylinder, fol-
low the Installation instructions for the domestic hot wa-
ter cylinder.
7.6 Installing the heating flow and heating return
Validity: Product with connected domestic hot water cylinder
▶ Make the heating connections as shown in accordance
with the relevant standards.
7.7 Installing the heating flow and heating return
Validity: Product with integrated hot water generation
▶ Make the heating connections as shown in accordance
with the relevant standards.
7.8 Installing the condensate discharge
Note
Failure to install and commission according to
the manufacturers’ instructions and complete this
Benchmark Commissioning Checklist will invalid-
ate the warranty. This does not affect the custom-
er’s statutory rights.
The product is equipped with a condensate siphon.
For filling and cleaning, an installation space of at least
180 mm is required below the condensate siphon.
▶ Use only pipes made of acid-resistant material (e.g.
plastic overflow pipe) for the condensate discharge pipe.
If you cannot guarantee that the materials from which the
condensate discharge pipe is made are suitable, install a
system to neutralise the condensate.
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