Operating instructions

15
5600 333 v1.1
Vitodens 100-W, WB1B Operating & User’s Information
Service Instructions for Your Heating System
Operation
IMPORTANT
Viessmann strongly recommends inspection/service of the boiler and the system by a licensed professional heating
contractor once per year.
Before the heating season begins, the boiler with its burner(s) and vent system should be serviced by a qualified heating
contractor. Service contracts may be established through gas suppliers or other licensed contractors in your area.
Regular inspection/service ensures trouble free, energy-efficient and environmentally friendly heating activity
of your heating system.
Boiler
All boilers must be cleaned on a regular basis as debris
build-up will result in increased flue gas temperature,
and thus in increased energy consumption.
Notes on operation:
- Ensure boiler room and boiler are clean.
- Regularly check heating system pressure on the
pressure gage:, If the system operating pressure gage is
indicating a pressure of below 14 psig, the system
pressure is too low; in this case, please contact your
heating contractor.
Viessmann domestic hot water storage tank
Inspection and (if necessary) cleaning of the tank must
take place within 2 years of initial start-up and every 2
years thereafter.
Cleaning of the inside surfaces of the domestic hot water
storage tank, including domestic hot water connections,
may only be performed by a licensed professional heating
contractor.
Vitocell 100:
Viessmann recommends an annual inspection, and
replacement if required, of the consumable anode by
a licensed professional heating contractor.
The inspection can be carried out during regular operation
of the heating system; shut-down is not required.
The heating contractor measures the protective current
with an anode testing instrument.
Drinking water filter (if installed)
For hygienic reasons:
- replace filter element every 6 months on filters which
cannot be flushed back, and perform a visual
inspection every 2 months,
- flush back reversible flow filters every 2 months.
If a water treatment device (water softener) is installed in
the domestic cold water supply to the hot water storage
tank, ensure its proper working condition is checked
regularly by your heating contractor.
The same applies if a dirt trap or a water filter is installed
in the domestic cold water supply. Any of these devices
installed in the domestic cold water supply must be
flushed out and serviced on a regular basis.
Please follow the manufacturer’s instructions.
Fault Messages on the Display
Any faults in your heating system are indicated on the
display by a flashing fault symbol ” U”.
Read off the fault code in the display and report it to your
heating contractor. This helps the contractor to properly
prepare, and may result in lower service costs.
WARNING
Visually inspect the vent termination for any signs of
blockage. Under cold climate conditions [sustained
temperatures below 0° F (-18° C)] the vent termination
may be severely blocked by icicle and frost build-up.
The boiler control will automatically shut down the
boiler should air intake or vent be blocked. Remove
blockage if possible. Reset the boiler switch (ON / OFF
switch to OFF and then back to ON) (see page 10) and
the boiler should attempt to restart. If blockage is not
obvious and cannot be removed, contact a licensed
professional heating contractor.
Service Instructions for your Heating System