Flue installation instructions ecoTEC 834449_13
24
Fig. 2.40 Locking the catch
• Push the flue gas pipe and the deflector back into the
air pipe and lock the two catches.
a
Caution!
The seam of the air duct must be at the top.
• Fit the horizontal air/flue duct as described in section
2.4 and 2.5.
2.8.3 Installation of the deflector set after install-
ing the flue gas pipe
a
Caution!
The deflector flue terminal must point directly
upwards in the centre position.
Flue terminal clearances
The minimum flue terminal clearances are defined in BS
5440, and these must be adhered to unless the boiler
manufacturer has received approval to use smaller
clearances that are not considered to be safety critical.
Vaillant have reduced the flue terminal clearances and
these are given in the boiler installation instructions.
These are the minimum clearances to be used on all in-
stallations.
The minimum terminal clearances A, B and C for the de-
flector are reduced to 150 mm from an opening such as
a window. This means that the terminal on the horizon-
tal flue gas pipe becomes the air inlet when a deflector
is connected, and hence can be situated less than
300 mm from an opening window or airbrick.
2.8.4 Installing the variable terminal set after in-
stalling the flue gas pipe
d
Danger!
Risk to life from escaping flue gas!
Before starting work, shut down the boiler and
prevent it from being switched on unintention-
ally.
• Remove the wall seal from the terminal.
Fig. 2.41 Releasing the catches
• Use an 8 mm screwdriver to bend the catches in-
wards.
Fig. 2.42 Pulling out the terminal
• Pull the terminal with the flue duct out of the air duct.
a
Caution!
Do not twist the flue gas pipe when doing this.
Turning can cause the following flue gas pipe to
come away from the spacer.
Fig. 2.43 Unlocking the catch
• Unlock the catch between the terminal and the flue
duct by twisting them against each other.
• Pull the terminal out of the flue gas pipe.
• Fit the deflector to the flue gas pipe.
2 Standard Concentric Systems Ø 60/100
Summary of Contents for Air flue duct
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