Ecoflam Blu 500 PR Manual De Instrucciones página 20

B LB 381 BLU 500 -1400 PR / MD
POSITIONING THE DISK FOR NATURAL GAS AND L.P.G.
1400
L.P.G.
1200
SHIFTING FROM NAT. GAS TO L.P.G.: Remove the front disk from the firing head
SHIFTING FROM L.P.G. TO NAT. GAS: Fit the front disk to the firing head
ADJUSTMENT OF GAS MINIMUM PRESSURE SWITCH
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
DJUSTMENT OF THE AIR PRESSURE SWITCH
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 1 mbar (10 mm of W.G.). - Slowly
increase 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
pressure switch working range. If not, loose the locking nut of screw F and gradually turn the same: clockwise to
reduce the pressure; counterclockwise to increase. At the end tighten the locking nut.
TRASFORMAZIONE DA METANO A G.P.L. BLU 500
Per trasformare il bruciatore da metano a G.P.L. eseguire le seguenti opera-
zioni (come indicato in figura):
- Eseguire filettatura M6 su tre fori Ø 5.
- Tappare i tre fori filettati con viti M6.
M6
Open
NATURAL GAS
Closesd
pag.20
3 mm.
1400
3 mm.
1200
N
M
I
L
D
C
A
G
B
H
E
F