Cuenod C 100 B 517, Operating Instructions Manual, Page: 44 / 52

44
0306 / 13 013 497A
Q
GAS and FUEL OIL
Air pressure switch:
Burner is working with ignition flow.
•
Look for air pressure switch cut-off
point (lock):
•
Multiply value read by 0.8, in order
to obtain setting point.
•
Restart the burner.
•
Simultaneously disconnect both
microammeter cables.
Unit should immediately lockout.
•
Refit measuring bridge and covers.
•
Disconnect mesurement appliances.
•
Reclose pressure take-offs.
•
Release cover.
Burner works on gas or fuel oil (both
are available).
•
Select the other fuel via switch S4 .
The burner stops… then restarts
with chosen fuel.
•
Check the following:
–
for any leaks between flange and
boiler front,
–
that regulator circuit is open (limiter
and safety).
–
the intensity setting on fan motor
thermal relay :
C75 :
3,1 A / 400V
C100 : 3,5 A / 400V
Cell
•
Test cell with simulated flame and
without flame.
•
Check combustion in real operating
conditions (doors closed, cover on,
etc.), as well as for leaks in the
various circuits.
When GAS combustion tests are
validated, return to FUEL OIL .
•
Check FUEL OIL combustion
values, which must remain
unchanged from initial setting.
•
Record results in relevant
documents and inform the agent of
these results.
•
Switch on burner in automatic mode.
•
Convey information required for
operation to those concerned.
•
Place the boiler house plate in full
view.
Start up
Setting of the fuel oil pressure
Setting and checking safety units
Q
GAS
Setting and checking safety units
Gas pressure switch :
•
Set to minimum distribution
pressure.
Burner is working with ignition flow.
•
Slowly close ball valve.
Burner should stop due to insufficient
gas pressure.
•
Reopen ball valve.
Burner restarts automatically.
The pressure switch is set.
•
Fit and screw cover on.
Type
Dual
Fuel
Burner
Power
Fuel oil
flow
Danfoss nozzle
(1) US gal/h
45°B or 60°B
Pump
Pressure
Regul.1 bar Regul.2
kW kg/h 1
st
rate 2
nd
rate
w
1
w
2
C 75
350
400
450
500
550
600
650
750
29,50
33,50
37,80
42,00
46,30
50,60
54,80
63,20
4,5
4,5
4,5
4,5
4,5
4,5
4,5
5,5
3,75
4,5
5,0
6,0
6,0
7,5
8,5
10
14
15
17
16,5
18
18
18
13
13
14
18,5
15
18
15,5
17,5
15
C 100
500
550
600
650
700
800
900
1000
43,50
46,30
50,50
55,00
59,00
67,40
75,80
84,80
4,5
5,0
5,0
5,0
5,0
5,0
5,0
5,0
4,5
5,0
6,0
7,5
A 8,5
10
11
11
20,5
18
17,5
15
17,5
18
19
22
23,5
19
17,5
16,5
17
18
20
24
On delivery, the pump is set at 19 bars ± 0,5 bars.
Highlighted : delivered equipment. 1kg fuel at 10°C = 11,86kW
(1) Similar nozzles:Danfoss 60°S 1
st
rate - Delavan 45° A - Steinen 60° SS