Page 29 of 51
8.6 Commissioning
8.6.1 General
Measure the gas pressure in the gas pipe at the pressure nipple (3) of the gas safety valve.
The gas pressure needed for the boiler to work properly under full output is a minimum of 15 mbar (or
current regulations, if greater) all plant running.
Figure 4
; Gas valve(s) Strebel S-CB
NOTE: THE SCREW 2 ON THE GAS VALVE BLOCK SCB 60/80/150/180 IS THE SMALL SCREW AS SHOWN
8.6.2 Boiler Commissioning Light Up
•
Once the system has been filled,
vented,
(see 8.5 page 28) tested and
everything is in order according
to this manual,
connect the central heating boiler to the mains and turn the boiler on..
•
Make any external control device. IE room stat, control panel etc
•
When the boiler is turned on, the display will show the requested water temperature (see 8.4 , 8.4.1 )
•
The burner control will repeatedly give an electronic spark until a flame appears. If no flame appears
after several attempts, check
1),
the gas supply.
2),
the gas valve has been set correctly.
•
The Boiler has a built in hot water control, the boiler will first heat up the calorifier (when connected).
•
Once the calorifier is hot (if fitted), adjust the room thermostat (or make an external control) to a higher
value to start the burner for CH.
8.7 Adjusting and setting the output or when checking or replacing a new gas control valve
Set the valve via measuring the CO2 percentage (LPG is set by CO see page 40 & 41) and gas consumption
rate (The flue may effect the Boiler output see pages 13, 14 and 15) Use this method to set both the minimum
and the maximum output: first set the maximum output and then set the minimum output.
8.7.1 Setting the maximum output
Press with a ball pen (or similar) the SERVICE button (8.4.1) in the small hole beneath the plastic cap at the
right side of the control fascia and then turn the CH knob to give the maximum fan-speed (See table 4. page
30)
Measurement of the emissions and CO
2
percentage is via the measuring point in the flue gas pipe, (after
unscrewing the plastic cap).
If necessary, turn the adjusting
screw 2
(see
Figure 4
above) for setting; either anticlockwise to increase the
CO2 percentage or clockwise to reduce the CO2 percentage (see fig 4 page 30). For setting the minimum
output CO2 percentage see page 31 8.7.2 ( LPG is set by CO see page 40 &41).
Boiler
S-CB 60
S-CB 80
S-CB 100
S-CB120
S-CB 150
S-CB 180
Minimum fan
revolutions (RPM)
For setting CH
1800
1800
1800
1800
1800
1800
Maximum fan
revolutions (RPM) for
setting CH
6500
6500
6500
6500
5500
5500
Table 3 Revolutions S-CB
S-CB 60/80
S-CB 100 / 120
S-CB 150/180
2
1
3
2
3
1
2
Содержание SC-B
Страница 5: ...Page 5 of 51 2 TYPICAL SYSTEM LAYOUTS 2 1 Single Boiler Layout ...
Страница 42: ...Page 42 of 51 14 EXPLODED VIEW DIAGRAMS ...
Страница 45: ...Page 45 of 51 14 2 Burner fan gas pipe heat exchanger casing S CB 150 S CB 180 Figure 5 S CB150 S CB 180 ...
Страница 47: ......
Страница 49: ...Page 49 of 51 14 4 Pipes pump S CB 150 180 Figure 6 S CB 150 S CB 180 ...