4
3.1 HOW TO TOP-UP THE SYSTEM PRESSURE
(fig. 1-2)
The system pressure must be checked periodically to ensure the
correct operation of the boiler. The needle on the gauge should
be reading between 1 and 1.5 BAR when the boiler is in an off
position and has cooled to room temperature. If the pressure
requires ‘topping-up’ use the following instructions as a guide.
- Locate the filling valve connections (usually beneath the
boiler, see fig. 3).
- Attach the filling loop to both connections.
- Open the filling valve slowly until you hear water entering the
system.
- Close the filling valve when the pressure gauge (on the boiler)
reads between 1 and 1.5 BAR (see fig. 1).
- Remove the filling loop from the connections.
3.2 HOW TO FILL THE CONDENSATE TRAP
The first time you turn the boiler on after a prolonged period of
inactivity or for maintenance work, before using the appliance
you must fill the siphon with water and make sure that the
condensation is evacuated correctly.
Fill the condensation collection siphon pouring 1 litre of water
into the boiler combustion-analysis outlet with the boiler off,
and check that:
- the safety cut-off device is floating
- water is flowing correctly from the discharge pipe out of the
boiler
- the condensate outlet connection line is watertight.
If the condensate outlet circuit (siphon and pipes) is working
correctly, the condensation level will not exceed the maximum.
Filling the siphon before using the appliance, and the use of a
safety cut-off device inside the siphon, prevent exhaust gases
from being released into the environment.
Repeat during standard and non-standard maintenance work.
MAX
~
50 mm
3. HOW TO...
3.3 HOW TO RESET THE APPLIANCE
When the fault code is displayed, the appliance will require to
be reset manually. Before resetting the boiler, check what action
is required to be taken, using the information on the fault code
table below. Allow a period of two minutes to elapse before rotate
the mode selector knob across the
position (see fig. 1).
IMPORTANT
If the appliance requires to be reset frequently, it may be indica-
tive of a fault, please contact your installer or Vokèra Customer
Services for further advice.
3.4 HOW TO SHUT DOWN THE SYSTEM FOR
SHORT PERIODS
The system and boiler can be shut down for short periods by
simply turning the time clock to the off position. It is also advis-
able to turn off the main water supply to the house.
3.5 HOW TO SHUT DOWN THE SYSTEM FOR
LONG PERIODS
If the house is to be left unoccupied for any length of time –
especially during the winter – the system should be thoroughly
drained of all water. The gas, water, and electricity supply to
the house should also be turned off. For more detailed advice
contact your installer.
3.6 HOW TO CARE FOR THE APPLIANCE
To clean the outer casing use only a clean damp cloth. Do not
use any scourers or abrasive cleaners.
Fig. 3
control
valve
temporary
connection
control
valve
supply pipe
double
check valve
flow/return
pipe
