Vaillant ecoTEC plus VUI Series, Инструкция по установке и обслуживанию

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0020308121_04 Installation and maintenance instructions
21
90°
90°
1
▶
Turn the gas isolation valve (1) by a 90° rotation:
–
Open: Rotate by 90° anti-clockwise
–
Close: Rotate by 90° clockwise
Note
To isolate, only use the mechanism that is
provided by the gas isolation valve. Any
change, wear or damage to a part of the gas
isolation valve means that the fitting no longer
complies with the performance requirements
of the standard and it must be completely
replaced.
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 pipe connections between the
shift-load cylinder and the heat generator
1. Install pipe connections for domestic hot and cold wa-
ter between the shift-load cylinder and heat generator.
2. Install pipe connections for the flow and return between
the shift-load cylinder and heat generator.
7.5 Installing the hot and cold water connection
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.