Viessmann Vitopend 100-W Installation And Service Instructions For Contractors

41
45°
E
Heating water flow
F
Heating water return
G
Cold water
H
DHW
Check the connections on the DHW side
for scale build-up and the connections on
the heating water side for contamination.
Clean or replace the plate heat
exchanger if required.
Replacing the plate heat exchanger
1.
Push stepper motor A slightly
upwards.
2.
Turn stepper motor adaptor B with
stepper motor
A
anti-clockwise by
1/8 of a turn and remove.
3.
Remove 2 screws C from the plate
heat exchanger and remove plate
heat exchanger
D
with gaskets.
Troubleshooting
Repairs
(cont.)
5848 649 GB
Service

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%