pag.21
EN
420010243004 MULTICALOR 170.1-200.1 PR/PR
To calculate the burner’s working output, in kW, proceed as follows:
- Check at the meter the quantity of supplied litres and the duration,
in seconds, of the reading, then calculate the burner’s output through
the following formula:
CALCULATION OF WORKING OUTPUT OF THE BURNER
e x f = kW
s
e
=
Litres of gas
s
=
Time in seconds
G20 = 34,02
G25 = 29,25
G30 = 116
G31 = 88
f
2
3
5
8
7
6
VgR
Vg
A
R
VgS
VG
VGS
1
4
GAS CIRCUIT
1 -
PUMP
2 -
SAFETY OIL VALVE
3 -
OIL VALVE
4 -
RETURN VALVE
5 -
NOZZLE
6 -
GAS PRESSURE SWITCH
7 -
SAFETY GAS VALVE
8 -
GAS VALVE
Suction
Return
Error code table
Red blink code of
«AL» at
Possible cause
signal lamp (LED))
term. 10
2 blinks
on
No establishment of flame at the end of «TSA»
- Faulty or soiled fuel valves - Faulty or soiled flame detector
- Poor adjustment of burner, no fuel - Faulty ignition equipment
3 blinks
on
«LP» faulty
- Loss of air pressure signal after «t10», - «LP» welded in normal position
4 blinks
on
Extraneous light when burner is started up
5 blinks
on
Time out «LP»
- «LP» welded in working position
6 blinks
on
Free
7 blinks
on
Too many losses of flame during operation
(limitation of the number of repetitions)- Faulty or soiled fuel valves.
- Faulty or soiled flame detector - Poor adjustment of burner.
8 blinks
on
Free
9 blinks
on
Free
10 blinks
off
Wiring error or internal error, output contacts, other faults.
14 blinks
on
CPI contact not closed
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 pres-
sure (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 tur-
ning 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 increa-
se of 0,5÷0,8% or else, if a pressure gauge is available, connected to pressure port E, until rea-
ching 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
gas pressure
switch
air pressure switch
