Viessmann Vitodens 111-W, Инструкция по установке и обслуживанию

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Gas connection
A
Fig. 7
1. Connect the gas shut-off valve to connection A .
2. Carry out a tightness test.
Note
Only use suitable and approved leak detection
agents (EN 14291) and devices for the tightness
test. Leak detection agents with unsuitable constit-
uents (e.g. nitrides, sulphides) can cause material
damage.
Remove residues of the leak detection agent after
testing.
!
Please note
Excessive test pressure will damage the
boiler and the gas train.
Max. test pressure 150 mbar (15 kPa). If a
higher pressure is required for tightness
tests, disconnect the boiler and the gas train
from the main supply pipe. Undo the fitting.
3. Purge the gas line.
Condensate drain connection
A
Fig. 8
■ The condensate pipe is connected to the discharge
pipe of the safety valve. The condensate hose sup-
plied meets the temperature requirements that are
part of the CE certification.
■ We recommend connecting the condensate pipe
internally to the domestic waste water system, either
directly or via a tundish.
■ If the condensate pipe is routed outside the building,
use a pipe with min.
7
30 mm and protect the pipe
from frost. Avoid long external pipe runs.
!
Please note
A frozen condensate pipe can result in faults
and damage to the boiler.
Always protect condensate pipes against frost.
■ Observe local building regulations.
Connect condensate pipe
A
to the public sewage sys-
tem with a constant fall and a pipe vent.
Observe local waste water regulations.
Note
Fill the trap with water before commissioning.
Filling the trap with water
!
Please note
During commissioning, flue gas may escape
from the condensate drain.
Always fill the trap with water before commis-
sioning.
Installation sequence
Mounting the boiler and making connections
(cont.)
5697789
Installation