420010401800 Multicalor 700.1 - 1200.1 PR/PR
EN
+
ADJUSTING THE MINIMUM CAPACITY OF THE BURNER – AIR and GAS
Position the selector placed on the control panel on position 2 and proceed as follows:
Adjust the minimum gas flow rate using a suitable wrench, turn the butterfly valve until you reach the correct gas flow,
as established by analyzing the combustion process.
Position the selector, situated on the control panel, on position 1 and proceed as follows:
Adjusting the maximum gas flow rate (see figure on solenoid valve adjustments) or adjust the gas pressure in the gover-
nor.
Adjusting the maximum air flow rate (see figure, detail 2). Loosen the nut holding the air damper transmission rod;
The correct air flow as established by analyzing the combustion process.
Using the selector, start the servomotor (closing or opening) and position on 0 to stop the stroke; the adjustment is
made as outlined below. Repeat the operation for the other cam points.
Adjustment the intermediate gas flow rates (see figure, detail 3): - using a suitable Allen wrench, change the position of
the cam guide blade; if you screw it down, the flow rate is reduced; if you unscrew it, the flow rate increases.
AIR AND GAS ADJUSTMENT
+
Part. 2
SELECTOR
COMMUTATORE
AUTO
0
operating elements locked in an
0 =
bloccaggio degli apparati per il
intermediate position
funzionamento in una posizione intermadia
operation on maximum capacity
=
funzionamento alla massima potenza
operation on minimum capacity
=
funzionamento alla minima potenza
automatic operation
AUTO =
funzionamento automatico
ADJUSTING THE MAXIMUM CAPACITY OF THE GAS
ADJUSTING THE MAXIMUM AIR FLOW RATE
ADJUSTING THE INTERMEDIATE BURNER CAPACITY
FIRING HEAD SETTING
-
+
20
- -
+
Part. 3