Potterton Sirius two WH, Instruction Manual

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7108686.02 (1-11/12) 16
IN
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ti
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(e
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MAINTENANCE
P57 7045 Time after maintenance month xxx 0 240
P58 6704 View/Hide secondary fault internal code (0=no) - 1 0 1
BURNER CONTROL
P59 9512 Required ignition speed rpm xxx 0 8000
P60 9524 Required minimum operating speed (low speed) rpm xxx 0 8000
P61 9529 Required maximum operating speed (high speed) rpm xxx 0 8000
BOILER CONTROL PANEL PARAMETERS
P62 - Unit of measurement (1=bar, °C – 2=PSI, °F) - 1 1 2
P63 - Control panel operation: (1=central, 0=local) - 1 0 1
P64 - Software version
-
xx 0 999
* see “Accessories not included in supply”
xx : the value depends on the software version xxx : the value depends on the type of boiler
(a) : parameters read on the front boiler panel (fixed control panel) (b) : parameters read on the Remote Control
15. GAS VALVE COMMISSIONING
To commission the gas valve, enable the commission function as described in section 12.2
and carry out the following operations:
1) Commissioning MAXIMUM heat output.
Check that the measured on the flue duct, with the boiler operating at maximum heat
capacity, matches that indicated in table 2 (allowed tol/- 0.5%). If it does not, turn the
adjustment screw ( V ) on the gas valve. Turn the screw clockwise to decrease the level of
and anti-clockwise to increase it (allowed tol/- 0.2%).
2) Commissioning REDUCED heat output
Check that the measured on the flue duct, with the boiler operating at minimum heat
capacity, matches that indicated in table 2 (allowed tol/- 0.5%). If it does not, remove
the threaded brass cap on the gas valve and turn the adjustment screw ( K ). Turn the screw
clockwise to increase the level of and anticlockwise to decrease it (allowed tolerance
+/- 0.2%).
15.1 GAS CONVERSION
When converting from natural gas to propane (LPG), before calibrating
the gas valve as described above, replace the venturi assembly ( B) as
indicated in the figure. To achieve this, dismount the gas pipe (thre-
aded nut G1”) and remove the three screws securing the flange. Afterwards,
make sure there are no gas leaks. Modify the parameters (fan rpm) as indicated
in table 2 following the procedure described in section 14.
To simplify commissioning of the gas valve, set the “commissioning
function” directly on the boiler control panel as described in section
12.2.
For cascade ducts, change the parameter P60(a) increasing the num-
ber of fan revolutions (rpm) by 200 (see table in chapter 10.2).
TABLE 2
PARAMETERS - rpm
VENTURI
Ø (mm)
GAS NOZZLES
Ø (mm)
CO
2
Min
(%)
CO
2
Max
(%)
Max. CO
(ppm)
P60 (a) P30 – P61 (a) P59 (a)
Boiler
model
Min. power Max. power Ignition power
G20 G31 G20 G31 G20 G31 G20- G31 G20 G31 G20 G31 G20 G31 G20/G31
WH 90 1250 1500 6500 6200 2400 2400 34 5.6 (n°2) 4.5 (n°2) *8,5 *9,9 *9,0 *10
< 250
WH 110 1300 1300 6900 6700 2500 3000 38 6.4 (n°2) 5.0 (n°2) *9,0 *9,5 *9,2 *10
*
CO
2
with cover closed. Without cover (chamber open) the value is less than 0.2%.
(a) value read on the boiler front panel display to multiply x 10 (e.g.: 160 corresponds to 1600 rpm)