Viessmann Vitodens 100-W User manual

4755604 GB 3/2018 Please keep safe.
Maintenance Checklist
for contractors
Vitodens 100-W
Type B1HC, B1KC
VIESMANN
Safety instructions
Please follow these safety instructions closely to prevent accidents and material losses.
Installation, commissioning, inspection, maintenance
and repairs must only be carried out by a competent
person (heating engineer/installation contractor).
For heat pumps: work on the refrigerant circuit may
only be carried out by authorised refrigeration engi-
neers.
Before working on the appliance/heating system, iso-
late it from the power supply (e.g. by removing a sepa-
rate mains fuse or by means of a mains isolator) and
safeguard against unauthorised reconnection.
When using gas as fuel, also close the main gas shut-
off valve and safeguard against unauthorised reopen-
ing.
Check for gas tightness after installation.
Maintenance work on parts that fulfil a safety function
is not permitted. For replacements, use only original
spare parts supplied or approved by Viessmann.
Install the components with new gaskets.
Finding wearing parts
The wearing parts that have to be serviced can be identified and ordered via the Viessmann spare part app.

Steps to be followed
Step Completed
1. Filling the heating system
2. Venting the boiler by flushing
3. Changing the gas type
4. Checking the static pressure and supply pressure
5. Removing the burner
6. Checking the burner gasket and burner gauze assembly
7. Checking and adjusting the electrode
8. Cleaning the heat exchanger
9. Checking the condensate drain and cleaning the trap
10. Installing the burner
11. Checking the diaphragm expansion vessel and system pressure
12. Checking all connections on the heating water and DHW sides for leaks
13. Checking the flue system for unrestricted flow and tightness
14. Checking the firm seating of electrical connections
15. Checking all gas equipment for tightness at operating pressure
16. Mounting the front panel
Viessmann Limited
Hortonwood 30, Telford
Shropshire, TF1 7YP, GB
Telephone: [phone]
Fax: [phone]
E-mail: [email protected]
Viessmann Werke GmbH & Co. KG
D-35107 Allendorf
Telephone: [phone]
Fax: [phone]
www.viessmann.com
4755604 Subject to technical modifications.