Worcester 12/18 Instruction Manual page 42

8 716 113 389d 30/3/10 14:01
G
F
3
NOMINAL BOILER RATING AT NORMAL OPERATING TEMPERATURE
USING 28sec KEROSENE:
OIL
PUMP
NOZZLE
PRESSURE
(p.s.i.)
12/18 - Bentone Sterling 40 Burner:
0.35 80°SR 115 1.04
0.45 80°S 115 1.29
0.50 80°ES 140 1.55
18/25 - Bentone Sterling 50 Burner:
0.50 80°EH 130 1.56
0.55 80°EH 145 1.86
0.65 80°EH 150 2.17
12/18 - Riello RDB 1 Burner :
0.35 80°SR 105 1. 0 4
0.45 60°ES 120 1.29
0.50 60°ES 125 1.55
18/25 - Riello RDB 2.2 Burner
0.50 60°ES 125 1.56
0.65 60°ES 120 1.86
0.75 60°ES 115 2.17
25/32 - Riello RDB 2.2 Burner
0.75 60°ES 105 2.15
0.75 60°ES 140 2.45
0.85 60°ES 150 2.75
42
INSPECTION AND SERVICE
Page 42
3
A
F
APPROX
FUEL
APPROX.
FLUE
AIR
%CO
FLOW RATE AIR
GAS DAMPER
2
TEMP. DISC
SETTING
Kg/h l/h
( °C )
1.32 66 11.5 2.5 N/A
1.63 70 12.0 4.5 N/A
1.96 73 12.5 5.25
N/A
N/A
1.98 72 11.5 4.25
2.36 79 12.0 6.0 N/A
2.75 82 12.5 8.0 N/A
1.32 64 12 .0 4.5 12kW
1.63 67 12.0 3.0
15-18kW
1.96 72 12.5 4.5 15-18kW
:
18-25kW
1.98 75 11.5 2.0
2.36 78 12.0 3.0 18-25kW
2.75 84 12.5 4.5 18-25kW
:
2.72 78 11.5 3.0 N/A
3.10 80 12.0 4.0 N/A
3.48 83 12.5 5.0
N/A
INSTALLATION & SERVICING INSTRUCTIONS FOR WORCESTER GREENSTAR HEATSLAVE EXTERNAL 12/18-18/25-25/32
1
C
B
D
2
E
APPLIANCE
INPUT OUTPUT
kW Btu/hr kW Btu/hr
12.4 42300 12 40900
15.5 52900 15 51200
18.6 63500 18 61400
18.6 63300 18 61400
22.2 75100 21.5 73400
25.8 87900 25 85300
12.4 42300 12 40900
15.5 52900 15 51200
18.6 6 3500 18 61400
18.6 63300 18 61400
22.2 75100 21.5 73400
25.8 8 9700 25 85300
25.5 87040 25 85300
29.1 99200 28.5 97200
32.7 111400 32 109200
INSPECTION AND SERVICE
Fire valve:
Check that the oil supply pipe has a fire valve
fitted at least 1m away from the appliance
with the fire valve sensor located within the
appliance case. A fire valve sensor clip (A) is
provided for this purpose.
Re-commission the burner:
1 Align burner combustion head (B) into the
boiler housing tube with gasket (C)
correctly fitted.
Push firmly down to compress the gasket (C).
Tighten burner retainers (D) sufficiently to
ensure a good seal.
IMPORTANT:
Ensure the gasket is a good seal between
the burner combustion head and the boiler
housing to prevent flue gases escaping.
Refit flexible air duct and secure with clip ( E ).
2 Plug burner lead (F ) into control box (G).
Connect an oil pressure gauge to the oil
pump, run the burner and check the oil
pressure is correct for the required boiler
output. Check that the smoke reading is
between 0 and 1, if the smoke reading is
above 1 check the air setting. If the air
setting is correct check that the burner has
been reassembled correctly.
Allow the boiler to warm up then check the
combustion settings are correct as
indicated in the table below, adjust the
CO if necessary using the air shutter.
2
When the combustion is correct turn off the
boiler, remove the pressure gauge and refit
the blanking plug and plastic cover.
Refit panels:
3 Refit the top panel and press down to
compress the seal when fitting the
securing screws.
Push the front panel up behind the top
panel and push in at the base to secure
the screws with the tool provided.
After service handover:
Make a note of the date of any water treatment.
Set the controls back to the users
requirements.
Complete the service interval record at the
back of this manual and a CD11 or an
equivalent form.
If the appliance is unused and exposed to
freezing conditions; shut off all the mains
supplies, isolate the boiler and drain the
system and boiler, including the secondary
heat exchanger.
8 716 113 389d (03/2010)