Worcester GREENSTAR CAMRAY EXTERNAL Instruction Manual page 38

2
D
12/18
3
F
RIEL LO
RD B OI L P UMP
A - B leed & p ressure g auge p ort
B - Pressure adjustment
C - V acuum gauge port
NO MI NAL B OILE R RA TI NG A T NOR MAL O PERA TI NG T EMPER AT URE
USING 28sec K ERO SENE:
OI L P UMP
NO ZZL E
P RESSURE
(p .s .i .)
Boiler 12/18 RDB 1
0.40 6 0 ° ES
100
0.45 6 0 ° ES
120
0.55 8 0 ° EH
10 5
Boiler 18/25 RDB 2.2
0.55 8 0 ° EH
11 5
0.60 6 0 ° ES
115
0.75 8 0 ° ES
110
Boiler 25/32 RDB 2.2
*0.6 5 80 ° EH
140
0.7 5 80 ° EH
125
0.85 80 ° EH
125
37
STARTING THE APPLIANCE
D
Adjust position of air damper discs to suit
burner output (see chart below), located as
above. Access by removing the two star
18/25
screws (SC) to release the air inlet manifold.
4
G
5
C
B
A
D
F UEL A PPRO X. A PPRO X.
%C O
FL OW RA T E FL UE GAS AI R
2
T EMP ° C
SE TT IN G
Kg/h l/h
1. 04 1. 32 64 11 .5 3. 0
1. 28 1.63 73 11 .5 3. 5
1. 54 1.96 76 11 .5 5.5
1. 58 1.96 75 11.0 4.5
1. 84 2.33 77 12.0 2.5
2. 15 2.72 82 12.5 3.75
2.15 2.72 80 11 .0 4.5
2.37 3.0 81 12 .0 4.0
2.58 3.27 83 12 .5 4.5
* 25/32 model for 25kW remove the plastic air guide (see following page ).
SC
K
L
INPUT OUTPUT AIR BURNER
DAMPER
(APPLIANCE)
(APPLIANCE)
DISC
kW kW
SETTING
LD 2X SH 12/18
12.3 12.0 1 2
15.4 15.0 15-18 LD 2X SH 12/18
15-18 LD 2X SH 12/18
18.5 18.0
18.5 18.0 18
T2 SH 18/25
22.1 21.5 21.5-25 T2 SH 18/25
25.7 25.0
21.5-25 T2 SH 18/25
25. 7 25.0 N/A T2 L/H 25/32
28. 3 27.5 N/A T2 L/H 25/32
30.0 T2 L/H 25/32
30. 8 N/A
INSTALLATION & SERVICING INSTRUCTIONS FOR WORCESTER GREENSTAR CAMRAY EXTERNAL &
STARTING THE APPLIANCE
2 Remove plastic cover from the burner casing.
Fit a suitable pressure gauge to port (A) on
the oil pump.
Adjust the air shutter (L) and pump pressure
(B) as shown in the table opposite. The
burner should ignite following a pre-ignition
period of approx. 15 seconds.
If changing the burner output, check the
position of the air damper disc is correct to
the output as shown in the table below.
NOTE: For 25/32 appliance see following
page.
Boiler lockout indicator on:
SC
If the burner fails to establish a normal firing
pattern or flame failure occurs the flame
monitoring photocell mounted in the burner
body will alert the burner control box to shut
the burner down and provide a safe lockout
state indicated by the illumination of the
lockout indicator (D).
Wait 2 minutes then press the lockout
reset button (D) to initiate another start
sequence.
Repeat procedure until a flame is established.
3 Start and run for 3 minutes then switch off.
Check for after-spurting from the nozzle,
indicated by oil saturation on the combustion
head (G).
If after-spurting occurs:
Release the burner retainer (F).
Remove the burner, combustion head (G).
and electrodes, hold the burner vertical
to unscrew the nozzle and fill the nozzle
holder with kerosene.
Refit nozzle, electrodes, combustion
head (G) and the burner.
Restart and run for 3 minute intervals until
after-spurting stops.
4 Start and run for 20 minutes.
Remove sampling point cap (K) to check
the smoke reading is between 0-1. If the
smoke level is above 1, check the combustion
settings are correct and the oil nozzle is in
good condition.
Note: smoke readings may be inaccurate until
the smoke from burning organic binder in the
access door insulation has ceased.
Check the CO levels and adjust the air
2
shutter (L) setting according to the table
opposite.
HEAD
Check the flue gas temperature is close to
the values shown in the table.
If the flue gas temperature is too high and the
baffles are correctly fitted, then reduce the oil
pump pressure (B) 5-10p.s.i. to compensate
for nozzle variations.
Turn off the electrical supply.
Isolate the oil supply to the burner.
Remove the oil pressure gauge.
Refit the blanking plug (A).
Check and rectify any oil leaks.
5 Switch on the oil supply.
Switch on the electrical supply.
Restart the boiler and run for 5 minutes.
Recheck the CO
2
adjust the air shutter setting (L) to obtain
the correct CO level.
2
Refit the sample point cap (hand tighten
only, do not over tighten) and refit the burner
cover.
EXTERNAL SYSTEM 12/18-18/25-25/32
8 716 115 667a (05.2009)
levels and if required,