16
The following information are shown pushing sub-
sequently the button:
Info 1
N/A
Info 2
water pressure (fig. 18)
Info 3
CH temperature set (fig. 19)
Info 4
N/A.
5.9.3
INFORMATION MODE SERVICE
Push and hold for 10 seconds the Info button ( )
to enter the info menu service (
INF2 is shown on
the display
). The following information are shown
pushing subsequently the button:
5.9.4
ADJUSTING APPLIANCE PARAMETERS
The appliance is delivered with pre-set param-
eters. Some parameters can be changed or ad-
justed if required. For further details, please refer
to section 7.
5.10
SETTING THE SYSTEM DESIGN PRESSURE
The design pressure should be a minimum of 0.5
BAR and a maximum of 1.5 BAR.
The actual reading should ideally be 1 BAR plus
the equivalent height in metres (0.1 BAR = 1
metre) to the highest point in the system above the
base of the appliance (up to the maximum of 1.5
BAR total).
N.B.
The safety valve is set to lift at 3 BAR/30
metres/45 psig.
To lower the system pressure to the required
value, drain off some water from the appliance
drain valve until the required figure registers on the
pressure gauge (see fig. 1).
5.11
REGULATING THE CENTRAL HEATING SYS-
TEM
Fully open all radiator and circuit valves and run
the appliance for both heating and hot water until
heated water is circulating. If conditions are warm
remove any thermostatic head. Adjust radiator
return valves and any branch circuit return valves
until the individual return temperatures are correct
and are approximately equal.
5.12
FINAL CHECKS
●
ENSURE ALL TEST NIPPLES ON THE APPLI-
ANCE GAS VALVE ARE TIGHT AND CHECKED
FOR SOUNDNESS.
●
ENSURE THE APPLIANCE FLUE SYSTEM IS
FITTED CORRECTLY AND IS PROPERLY
SECURED.
●
ENSURE ALL PIPE WORK IS RE-CHECKED
FOR SOUNDNESS.
●
RE-FIT APPLIANCE CASING.
●
COMPLETE BENCHMARK CHECKLIST.
FOR UK ONLY
Complete details of the boiler, controls, installa-
tion and commissioning in the Benchmark check-
list at the back of this book. It is important that the
Benchmark checklist is correctly completed and
handed to the user. Failure to install and commis-
sion the appliance to the manufacturers instruc-
tions may invalidate the warranty.
5.13
INSTRUCTING THE USER
Hand over all documentation supplied with this
appliance - including these instructions - and
explain the importance of keeping them in a safe
place.
Explain to the user how to isolate the appliance
from the gas, water and electricity supplies, and
the locations of all drain points. Show the user how
to operate the appliance and any associated
controls correctly.
Show the user the location of the filling valve and
how to top-up the system pressure correctly and
show the location of all manual air release points.
Explain to the user how to turn off the appliance for
both long and short periods and advise on the
necessary precautions to prevent frost damage.
Explain to the user that for continued safe and
efficient operation, the appliance must be serv-
iced annually by a competent person.
IMPORTANT
To validate the appliance warranty, it’s necessary
to register the appliance details with us.
The warranty can be registered in several ways:
●
●
●
●
●
by completing the warranty registration card and
posting to us using the pre-paid envelope supplied
●
online at: vokera.co.uk
●
for UK residents by calling: 0870 607 0281
●
for ROI residents by calling: 1850 221121.
Step number
Information displayed
01
Temperature at flow sensor °C
02
Temperature at return sensor °C
03
Unused
04
Unused
05
Unused
06
Unused
07
Unused
FAN
Fan speed RPM/100
09
Unused
10
Unused
Fig. 18
Fig. 19