Nortec WB60 - Page 6

6
* Air line 2 is in NORTEC burners WB 230 and WB 270
Dimension and set-up sizes of burners NORTEC WB
5. Burner head (electrodes and dispenser position) adjustment
Consistent ignition, optimum flame shape and the most efficient combustion depend on correct
adjustment of such elements as dispenser, nozzles, combustion tube and ignition electrodes in
relation to each other.
An incorrect electrode position causes inconsistent ignition or contamination of the electrodes.
An incorrect dispenser position may change the flame shape and burner power, cause drops of
unburnt fuel on the bottom of the combustion chamber.
To adjust the burner head correctly use the diagrams (pic. 5 and pic.6) and the chart showing
distance between the elements.
Before starting the adjustment take the combustion tube off by unscrewing 4 fixing screws that
attach the tube to the burner shell.
Adjustment of the burner with 3 nozzles (WB 270) is similar to the one for the burner with 2
nozzles (WB 230).
#
Element name (pic.1)
1
Diffuser (not used in models WB60 and WB120)
2
Combustion tube
3
Asbestos heatproof pad
4
Installation flange
5
7-pin socket for power and fuel pump connection
6 А, B
Thermostats unit for preliminary fuel heating
7
Preliminary fuel heater
8
Burner shell
9
Fan engine
10
Socket for compressed air connection
11
Control chamber with an indicator of emergency shutdown
12
Drain tap of the preliminary heater
13
Ignition transformer
14
View hole
15 (1),(2)*
Electromagnetic valves (solenoids) 1 and 2* of air lines
16 (1),(2)*
Air filters separating moisture and regulating primary air pressure in lines 1
and 2*
17
Drain tap of the preliminary heater
18
Fuel way inlet
Size
WB60/120, mm (pic. 2)
WB230/270
A
460
530
B
280
300
C
180
230
D
205
212
E
415
540
F
80 – 110
105 – 200
G
95
134
H
93
137
I
105
150
L
M8
M8
M
95
114