Supplied By www.heating spares.co Tel. 0161 620 6677
23
●
press STORE;
●
LED 2 will now flash once, the MODE and
STEP buttons can now be released;
●
press the MODE button until it shows a FIXED
decimal point (see fig. 16).
7.3.1
MAXIMUM FAN SPEED (central heating)
●
Press the STEP button until it shows the
letter ‘J’ (LED 1).
●
Adjust the value (LED 2) using the +/- buttons
(see fig. 33)
●
Press STORE to save the new setting.
7.3.2
MAXIMUM FAN SPEED (DHW)
●
Press the STEP button until it shows the letter
‘L’ (LED 1).
●
Adjust the value (LED 2) using the +/- buttons
until it shows ‘55’
●
Press STORE to save the new setting.
7.3.3
MINIMUM FAN SPEED (DHW & CH)
●
Press the STEP button until it shows the letter
‘N’ (LED 1).
●
Adjust the value (LED 2) using the +/- buttons
until it shows ‘17’
●
Press STORE to save the new setting.
7.3.4
SOFT-LIGHT FAN SPEED
●
Press the STEP button until it shows the letter
‘O’ (LED 1).
●
Adjust the value (LED 2) using the +/- buttons
until it shows ‘80’
●
Press STORE to save the new setting.
7.3.5
FAN SPEED CONFIRMATION
To verify that the new fan speed has been
accepted into the memory:
●
press and hold the MODE and ‘+’ buttons for 3
Seconds;
●
allow the boiler to purge (approx. 10 seconds);
●
when ‘H’ is displayed in LED 1, press the
MODE button until LED 1 shows an alternating
cursor (see fig. 33);
●
when the digit is to the left, LED 2 shows the first
two digits of the maximum fan speed;
●
when the digit is to the right, LED 2 shows the
last two digits of the maximum fan speed;
●
press the MODE button until a fixed decimal is
shown in LED 1;
●
press and hold the MODE and ‘-–‘ buttons until
‘L’ appears in LED 1;
●
press the MODE button until LED 1 shows an
alternating cursor (see fig. 33);
●
when the digit is to the left, LED 2 shows the first
two digits of the minimum fan speed;
●
when the digit is to the right, LED 2 shows the
last two digits of the minimum fan speed.
NOTE
The actual fan speed displayed may not exactly
match what has been programmed. However,
providing the displayed speed is within 200 RPM
(+/-) of the programmed speed, this is acceptable.
7.3.6
EXIT ENGINEER MODE
Press the RESET button to exit the appliance
engineer mode.
7.4
ADJUSTING THE GAS VALVE
THE GAS VALVE MUST BE SET-UP OR
ADJUSTED WITH THE AID OF A PROPERLY
CALIBRATED FLUE GAS ANALYSER.
Remove the appliance casing as detailed in 4.8.1.
Unclip and remove the air chamber cover. Set the
flue gas analyser to read CO
2
and insert the probe
into the flue analysis test point (see fig. 1). Using
the procedure as detailed in 7.3 & 7.3.5
respectively, enter the appliance engineer mode
and set the fan speed to minimum.
Fig. 33
Fig. 32
0
5
10
15
20
25
30
1500
2000
2500
3000
3500
4000
4500
5000
5500
Fan speed in RPM
kW
Output BTU/H
102,360
68,240
17,060
0
51,180
34,120
85,300
50
°
C flow & 30
°
C
return temperature
80
°
C flow & 60
°
C
return temperature
Digit to
the left
LED 2 showing first two
digits of actual fan speed
Digit to
the right
LED 2 showing the last two
digits of the actual fan speed
Fan speed shown is 4198 RPM
