elco GHO-Tron 7.15000 R, Руководство по эксплуатации

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420010263301 GHO - TRON 7.15000 / 7.17000 R
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 cor-
rect. 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 pressure 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.
2,5
5
10
15
50
25
35
30
40
45
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
SETTING THE FIRING HEAD
NOZZLE CLEANING AND REPLACEMENT
Use only the suitable box wrench provided for this operation to remove the
nozzle, taking care to not damage the electrodes. Fit the new nozzle with
the same care.
Note: Always check the position of electrodes after having replaced the
nozzle (see illustration). A wrong position could cause ignition troubles.