C.I.B. UNIGAS - M03957CI
26
Gas Filter
The gas filters remove the dust particles that are present in the gas, and prevent the elements at risk (e.g.: burners, counters and regu-
lators) from becoming rapidly blocked. The filter is normally installed upstream from all the control and on-off devices.
GAS PRESS
U
R
E mbar
HP72
Gas rate Stm
3
/h
HP73A
Gas rate Stm
3
/h
ATTENTION:
before starting the burner up, be sure that the manual cutoff valves are open and check that the pres-
sure upstream the gas train complies the value quoted on paragraph “Technical specifications”. Be sure that the
mains switch is closed.
.
ATTENTION:
During commissioning operations, do not let the burner operate with insufficient air flow (danger of formation
of carbon monoxide); if this should happen, make the fuel decrease slowly until the normal combustion values are achieved.
WARNING: NEVER LOOSE THE SEALED SCREWS! OTHERWISE, THE DEVICE WARRANTY WILL BE IMMEDIA-
TELY INVALIDATE!
Fig. 31
Keys
1
Gas filterl
2
Gas proving system
3
Gas valves
4
Fuel pump
5
Gas Adjusting cam
6
Actuator
VPS504 Gas proving system
The VPS504 check the operation of the seal of the gas shut off val-
ves. This check is carried out as soon as the boiler thermostat gives
a start signal to the burner, creating, by means of the diaphragm
pump inside it, a pressure in the test space of 20 mbar higher than
the supply pressure.
When wishing to monitor the test, install a pressure gauge ranged to
that of the pressure supply point PA.
If the test cycle is satisfactory, after a few seconds the consent light
LC (yellow) comes on. In the opposite case the lockout light LB (red)
comes on.
To restart it is necessary to reset the appliance by pressing the illu-
minated pushbutton LB.
Fig. 32
0
2
4
6
8
10
12
30
40
50
60
70
80
90
100 110 120 130 140 150 160 170
0
5
10
15
20
25
30
35
0
50
100
150
200
250
1
3
2
5
6
4
LC
LB
PA
Содержание HP60
Страница 9: ...C I B UNIGAS M03957CI 9 Overall dimensions mm Boiler recommended drilling template ...
Страница 49: ...C I B UNIGAS M03957CI 49 ...
Страница 51: ...C I B UNIGAS M03957CI 51 WIRING DIAGRAM Cod 05 680 Progressive burners ...
Страница 52: ...C I B UNIGAS M03957CI 52 WIRING DIAGRAM Cod 05 681 Fully modulating burners ...
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