Condensate Disposal - Viessmann Vitocrossal 300 CT3 Series Installation Instructions Manual

Boiler Connections/Assembly
Vitocrossal 300, CT3 Series Installation

Condensate Disposal

All condensate disposal piping from boiler and from vent
pipe system can be made from stainless steel, CPVC,
or the appropriate rubber hose material as long as there
is a P-trap installed in the disposal lines to avoid flue gas
spillage through the condensate lines.
The condensate occurring will show a reading of between
3 and 4 on the pH scale. If local building requirements
demand neutralizing the condensate before disposal,
contact Viessmann Manufacturing Company Inc. for
a correctly sized neutralization tank. The treated
condensate will show pH values of between 6.5 and 9
and can then be disposed of into the waste water system.
The condensate drain to the sewer connection must
be accessible to inspection.
Route it with a gradient and equip the pipe with a P-trap;
also provide suitable facilities for taking samples.
The bottom drain should be located below the anti-
flooding level of the flue gas collector box.
Condensate drains must only be made from corrosion
resistant materials (e.g. fiber reinforced hoses). Never
use any galvanized materials or those containing copper
or black iron for pipes, connectors, etc.
Install a P-trap in the condensate drain to prevent flue
gases from escaping.
Ensure that the domestic drainage systems are made from
materials which are resistant to acidic condensate, e.g.:
H Stoneware pipes
H Hard PVC pipes
H PVC pipes
H PE-HD pipes
H PP pipes
H ABS/ASA pipes
H Stainless steel pipes
H Borosilicate pipes
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