Please file in Service Binder
5624 562 - 03 10/2019
Part Number: 7810719, 7842945, 7870851
Ignition Electrode
Part Number: 7817324
Ionization Electrode
Part Number: 7810720
Gasket (ignition electrode)
For use with: Vitocrossal 200 CM2 186, 246 and 311
Installation Instructions
Ignition and Ionization Electrode Block
Refer to the Installation and Start-up/Service
Instructions applicable to this boiler.
Ensure that main power to the equipment being serviced
is off.
Ensure that the main fuel supply valve to the boiler
is closed.
Take precautions to avoid accidental activation of power
or fuel during service work.
Do not perform service work on any component part
without ensuring safe operation of the heating system.
When replacing parts, use original Viessmann or
Viessmann approved replacement parts.
Safety and Installation Requirements
Please ensure that these instructions are read and
understood before starting any service work. Failure
to comply with these instructions may cause product/
property damage, severe personal injury and/or loss
of life.
Working on the equipment
The installation, adjustment, service and maintenance of
this product must be performed by a licensed professional
heating contractor who is qualified and experienced in the
installation, service, and maintenance of hot water boilers.
There are no user serviceable parts on the boiler, burner or
control.
for use by heating contractor
Removing the Front Covers
Refer to the Installation and Service
Instructions applicable to this boiler.
1. Remove the M5 screw and set aside.
2. Pull top of upper front panel forward then lift and remove.
3. Reinstall front covers when finished in reverse order.
Note:
Install side cover prior to installing the front covers.
