Vaillant ecoTEC exclusive VC 156/5‑7 N-DE Installation And Maintenance Instructions Manual page 13

–
80/125 mm diameter: Air/flue gas system installation set,
article number 303208
Permissible accessories for extending the horizontal connec-
tion:
–
All those listed in the assembly instructions for the air/flue
gas systems, which are enclosed with the heat generator
▶
Observe all of the installation advice given in the as-
sembly instructions.
▶
Use an additional air clamp for the connection to the ver-
tical section of the flue gas installation:
–
60/100 mm diameter: Article number 282573
(100 x 70 mm)
–
80/125 mm diameter: Article number 282564
(125 x 70 mm)
Connection requirements (to be established on-
site):
DA DL
60 ± 100 ±
60/100
0.5 mm 0.5 mm
80 ± 125 ±
80/125
0.5 mm 0.5 mm
5.9.3 Maximum air/flue gas pipe lengths,
horizontal section
Maximum air/flue gas pipe lengths:
–
60/100 mm diameter, horizontal: 10.0 m plus connection
elbow
–
80/125 mm diameter, horizontal: 6.0 m plus connection
elbow
Each additional 87° elbow reduces the total pipe length by
2.0 m.
5.9.4 Installing and connecting the flue pipe
1. You can find out which flue pipes may be used by con-
sulting the enclosed flue pipe installation manual.
Conditions: Installation in damp rooms
▶
You must connect the product to a room-sealed air/flue
gas installation. The combustion air must not be taken
from the installation room.
0020186710_06 ecoTEC exclusive Installation and maintenance instructions
L
1
L
2
D D
A L
L1 L2
Min. 15 mm
35 mm
Min. 30 mm
35 mm
Caution.
Risk of poisoning due to escaping flue
gas.
Mineral-oil-based greases can damage the
seals.
▶
Instead of grease, use only water or com-
mercially available soft soap to aid install-
ation.
2. Install the flue pipe using the installation manual.
5.9.5 Replacing the connection piece for the
air/flue pipe as required
1. Replace the connection piece for the air/flue pipe as
required. The product-specific standard equipment is
listed under Technical Data in the appendix.
2. Remove the connection piece for the air/flue pipe.
(→ Page 13)
Alternatives :
3.
▶
If required, install the connection piece for the
air/flue pipe, 80/125 mm diameter. (→ Page 14)
4. Alternatives :
▶
If required, install the connection piece for the sep-
arate flue pipe, 80/80 mm diameter. (→ Page 14)
5.9.5.1 Removing the connection piece for the
air/flue pipe
A
1. Insert a screwdriver into the slot between the measuring
stub pipes.
2. Press the screwdriver carefully down.
3. Turn the connection piece anticlockwise as far as it will
go and then remove it by pulling it upwards.
Installation 5
C
B
13