Worcester Greenstar 12/18 Installation, Commissioning And Servicing Instruction Manual page 31

▶ Turn off the electrical supply.
▶ Isolate the oil supply to the burner.
▶ Remove the oil pressure gauge.
▶ Refit the blanking plug [4] figure 51.
▶ Check and rectify any oil leaks.
▶ Switch on the oil supply.
▶ Switch on the electrical supply.
▶ Restart the boiler and run for 5 minutes.
▶ Recheck the CO levels and if required, adjust the air shutter setting
2
[6] figure 51 to obtain the correct CO
▶ Refit the sample point cap (hand tighten only, do not over tighten)
and refit the burner cover.
1
6
Fig. 51
[1] Reset button
[2] Combustion head
[3] Pressure adjustment
[4] Bleed and pressure gauge port
[5] Air shutter display window
[6] Air shutter adjuster
Combustion settings
Nominal boiler rating at normal operating temperature using 28 second kerosene
Oil pump
pressure
Nozzle (bar/psi)
Boiler 12/18 RDB 2.2
0.35x80°SR 9/132
0.45x60°ES 7.5/110
0.55x80°EH 7.8/115
Boiler 18/25 RDB 2.2
0.50x80°ES 8.5/125
0.60x60°ES 8.5/125
0.75x80°ES 7.5/110
Boiler 25/32 RDB 2.2
0.75x80°ES 7.5/110
0.75x80°ES 10/147
0.85x80°EH 9.5/140
Table 8 Burner information
APPLIANCE MUST BE SET TO CO
AIR SETTINGS GIVEN ARE APPROXIMATE ONLY, AS FLUE LENGTH AND NOZZLE VARIATIONS WILL AFFECT THIS.
Greenstar Danesmoor External ErP and External System
level.
2
2
3
4
5
6720809437-34.1Wo
Fuel flow rate Approx.
flue gas
kg/h l/h temp. °C %CO
1.04 1.32 72
1.28 1.63 77
1.54 1.96 80
1.58 1.96 76
1.84 2.33 81
2.15 2.72 87
2.15 2.72 79
2.45 3.11 81
2.75 3.48 86
LEVELS.
2
ErP - 6 720 813 288 (2014/09)
Central heating
▶ Open all radiator valves.
▶ Set room thermostat to maximum.
▶ Set programmer to ON for CH, OFF for DHW (if applicable).
▶ Turn the thermostat control [1] to max.
The demand indicator [2] should illuminate and the burner should be ON
with the circulating pump.
▶ Ensure all radiators are heating up evenly and balance the system to
the temperature difference required for the heating flow and return
according to the heating load.
▶ Set the room thermostat to minimum.
The demand indicator light [3], burner and circulating pump should
be off.
▶ Check that any other controls that are fitted to the system are
operating properly.
1
Fig. 52
Approx Input Output
air
setting kW
2
11.0 3.0 12.3 12.0
11.5 5.0 15.4 15.0
12.0 5.0 18.5 18.0
11.5 3.0 18.5 18.0
12.0 3.5 22.1 21.5
12.0 4.5 25.7 25.0
11.5 3.5 25.7 25.0
12.0 4.5 29.4 28.5
12.5 5.0 33.0 32.0
Commissioning
2
3
6720809437-28.1Wo
Air damper
kW disk setting Burner head
12/15 LD2X Short
12/15 LD2X Short
18 LD2X Short
18 LD2SX Short
21.5 LD2SX Short
25 LD2SX Short
N/A T2 Short
N/A T2 Short
N/A T2 Short
31