Viessmann Vitopend 100-W Installation And Service Instructions For Contractors page 42

Troubleshooting
Repairs
(cont.)
4. Install plate heat exchanger D in
reverse order using new gaskets.
Fixing screw torque: 5.5 Nm.
Note
During installation, ensure the fixing
holes are aligned and the gaskets are
seated correctly.
Install the plate heat exchanger with
the correct orientation. Observe the
marking "Top".
42
5. Reassemble the boiler in reverse
order.
6. Fill the boiler with water, flush (vent)
and check for leaks.