Ecoflam BLU 700.1 P Manual Del Usuario página 12

420010268002 Blu 700.1 P Low Nox
EN
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
ADJUSTMENT 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 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 same: clockwise to reduce the pressure; counterclockwise to increase. At the end
tighten the locking nut.
With the burner switched off, connect a DC microammeter with a 0÷50 or 0÷100 µA dial. When the burner is run-
ning, and is properly adjusted, the value read must be steady and never be smaller than 1,5 µA.
The burners are produced with connections suitable for power supply 400 V three-phase.
The burners with electric motors of an output lower or equal to 7,5 kW can be adapted to 220-230 V (please follow the
instructions on the backside); motors with higher output can only work 380-400 V three-phase.
In case of request of burners different from the above mentioned standard, it is recommended to make specific mention
in the order.
Instructions: how to adapt electric motors of an output lower or equal to 7,5 kW to 220-230 V power supply
It is possible to change the voltage of the burner by operating as follows:
1. change the connection inside the electric box of the motor, from star to delta (see picture);
2. change the setting of the thermal relay, referring to the absorption values indicated in the motor nameplate. If
FLAME DETECTION SYSTEM CHECK
DESCRIPTION OF THE CONTROL PANEL OF THE BURNER
6
I
0
1
min. 1,5 µA
LANDIS
LME11/LME21-22
1 - fuse
1 - fusibile
1
2 - termal lock-out lamp
2
2 - lampada di blocco termico
3 - working lamp
3 - lampada di funzionamento
4 - cover
4 - coperchio
5 - main switch I / O
3
6 - reset key 5 - interruttore I / O
4
6 - pulsante di sblocco
5
12
N
M
I
L
D
C
A
H
G
E
B
F