Checking The Boiler Block For Leaks - Viessmann Vitorond 200 Series Installation Instructions Manual

Checking the boiler block for leaks

Only when delivered in individual sections
Note
Not required if the boiler is supplied as a single block
(factory tested)
1.
Fig. 14
Blank flange (on site)
A
Carry out water pressure test in accordance with
TRD 702.
Test pressure: 9 bar (0.9 MPa)
Vent the boiler via the flow.
Note
No pressure, control or safety equipment should be
installed during the water pressure and tightness tests.
Test the pressure with a pressure gauge class 1.0.
Torque for cleaning cover 5 Nm
18