Viessmann Vitopend 100-W Installation And Service Instructions

36
5.
A
C
A
B
A
"Air vent key" supplied
Also for the shut-off valves
(accessories) and for removing
the flow switch
B
Circulation pump drain screw
C
Fill valve
Fill the heating system:
■ Conventional gas boiler:
Via fill valve in connection set (if
supplied) or via on-site fill valve.
■ Gas combi boiler:
Via fill valve in connection set (if
supplied) or via fill valve
C
on the
underside of the boiler.
Minimum system pressure
> 0.08 MPa.
Enter the measured value in the
enclosed "Guarantee card".
6.
!
Please note
If the system pressure falls
below 0.08 MPa, the circula-
tion pump will suffer dam-
age.
In the event of a pressure
drop immediately top up the
water.
Ensure a minimum system
pressure of > 0.08 MPa
during the filling and venting
process.
7. For activating the filling and venting
function, see next chapter.
8. After the system has been fully
charged and vented, turn OFF the
ON/OFF switch at the control unit.
The function will also terminate
automatically after 30 min.
9. Close the fill valve.
Commissioning, inspection, maintenance
Further details regarding the individual steps
(cont.)
5837146

Viessmann Vitopend 100-W Specifications

General

Fuel Type	Gas
Max. Water Temperature	85 °C
Type	Condensing Boiler
Gas Type	Natural gas / LPG
Efficiency	Up to 98%