Ecoflam MULTICALOR 100 PR-AB TL VCS 240 [13/64] Ad justm en t o f gas m in im um pressure sw itch

Ecoflam MULTICALOR 140 PR-AB TC VGD 20.503 [13/64] Ad justm en t o f gas m in im um pressure sw itch
13
420010239601 Multicalor 45 ÷ 140 PR/PR
EN
AD JUSTM EN T OF GAS MINIMUM PR ESSU R E SW IT C H
Unscrew off and remove cover M. - Set regulator N to a value equal to 60% of gas
nominal feed pressure (i.e. for nat. gas nom. pressure = 20 mbar, set regulator to a value
of 12 mbar; for L.P.G. nom. pressure of G30/G31- 30/37 mbar, set regulator to a value
of 18 mbar).Screw up cover M
AD JUSTM EN T OF THE AIR PR ESSU R E SW IT C H
Unscrew screws A and B and remove cover C.- Set the pressure switch to the minimum
by turning regulator D to position 1.
- Start the burner and keep in low flame running, while checking that combustion is
correct. Through a small cardboard, progressively obstruct the air intake until to obtain
a CO2 increase of 0,5÷0,8% or else, if a pressure gauge is available, connected to pres-
sure port E, until reaching a pressure drop of 1mbar (10 mm of W.G.). - Slowly increa-
se the adjustment value of the air pressure switch until to have the burner lockout.
Remove the obstruction from the air intake, screw on the cover C and start the burner
by pressing the control box rearm button.
Note: The pressure measured at pressure port E must be within the limits of the pres-
sure switch working range. If not, loose the locking nut of screw F and gradually turn
the sam e: clockw ise to r
edu ce the pressure; cou n terclockw ise to increase. At the en d tighten the locking nut.
2,5
5
1
0
1
5
50
2
5
3
5
3
0
4
0
4
5
20
0
,
4
0
,
6
0
,
9
3,0
1
,5
2
,
1
1
,8
2
,
4
2
,
7
1,2
I
L
M
N
A
B
C
D
E
F
G
H
To calculate the burners working output, in kW , proceed as follow s:
- Check at the meter the quantity of supplied litres and the duration,
in seconds, of the reading, then calculate the burners output through
the following formula:
CALCULATION OF WORKING OUTPUT OF TH E BU RN ER
e
x f = kW
s
e =
Litres of gas
s = Time in seconds
G20 = 34,02
G25 = 29,25
G30 = 116
G31 = 88
f
CONTROL BOXES LAN D IS & STA EFA LG B22
The Landis control box starts the fan and begins the pre-purging of the combustion chamber. The air pressure switch controls the
correct operation. At the end of the pre-purging phase, the ignition transformer cuts-in followed by the opening of the gas valves.
In case of missed ignition or accidental shutdown, the ionisation probe cuts-in and set the burner in lockout mode within the safety
time.
Description
2
3
5
87
6
VgR
Vg
A
R
VgS
VG
VGS
1
4
GAS CIRCUIT
1 - PUMP
2 - SAFETY OIL VALVE
3 - OIL VALVE
4 - RETURN OIL VALVE
5 - NOZZLE
6-GAS PRESSURE SWITCH
7-SAFETY GAS VALVE
8-GAS VALVE
Suction
Return

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