35
10.6.4 COMPLETION
On completion of the combustion analysis check and/or
any gas valve adjustment, set the HTG trimmer to the
corresponding value as detailed in the fan speed table.
Refit the 3-selector knobs and move the mode selector to
the OFF position. Remove the test probe from the test
point and refit the sealing screw/s and/or cap.
IMPORTANT
A GAS SOUNDNESS CHECK MUST BE CARRIED OUT
IF ANY GAS CARRYING COMPONENTS HAVE BEEN
REMOVED, REPLACED, OR DISTURBED .
10.7 APPLIANCE FAN SPEEDS
The appliance fan speeds require to be checked and/or
adjusted prior to making any adjustments to the gas valve
or if the main PCB has been replaced.
ATTENTION
Gas type and appliance fan speed (output)
must be set
according to the specific appliance specification. Vokera
accepts no responsibility if the gas type and/or fan speed
is not correctly adjusted according to the respective
appliance specification as detailed on the appliance data
badge.
10.7.1 CHECKING/ADJUSTING THE APPLIANCE FAN
SPEEDS
Move the selector switch to the OFF position and remove
the 3-selector knobs.
10.7.2 ABSOLUTE MAX FAN SPEED
Locate the MAX trimmer (fig. 29) and gently adjust clockwise
or counter clockwise to achieve the correct fan speed (see
table above).
NOTE
The display shows the fan RPM in multiples of 100, i.e. 25
= 2500RPM.
10.7.3 ABSOLUTE MIN FAN SPEED
Locate the MIN trimmer (fig. 29) and gently adjust
clockwise or counter clockwise to achieve the correct fan
speed (see table above).
NOTE
The display shows the fan RPM in multiples of 100, i.e.
25 = 2500RPM.
10.7.4 IGNITION FAN SPEED
Locate the IGN trimmer (fig. 29) and gently adjust
clockwise or counter clockwise to achieve the correct fan
speed (see table above).
NOTE
The display shows the fan RPM in multiples of 100, i.e.
25 = 2500RPM.
10.7.5 HEATING FAN SPEED
Locate the HTG trimmer (fig. 29) and gently adjust
clockwise or counter clockwise to achieve the correct fan
speed (see table above).
NOTE
The display shows the fan RPM in multiples of 100, i.e.
25 = 2500RPM.
FAN SPEED (rpm) TABLE
MODEL
MAX
MIN
HTG
IGN
20HE
5.400
1.700
5.400
3.700