pag.21
420010399600
MULTICALOR 170.1 -200.1 P AB
EN
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
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 mini-
mum 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 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 bur-
ner 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 gradual-
ly 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
GAS CIRCUIT
1°
S
T
AD
I
O
G
AS
A
S
P
IR
A
ZION
E
RI
T
ORNO
Vg
S
Vg2
Vg1
1
2
3
4
5
6
VG
VG
S
9
8
7
1 - PUMP
2 - SAFETY LIGHT-OIL VALVE
3 - LOW FLAME LIGHT-OIL VALVE
4 - HIGH FLAME LIGHT-OIL FLAME
5 - LOW FLAME NOZZLE
6 - HIGH FLAME NOZZLE
7 - MINIMUM GAS PRESSURE SWITCH
8 - SAFETY GAS VALVE
9 - GAS VALVE
2
S
T
AD
I
O
G
AS
A
S
P
IR
A
ZION
E
RI
T
ORNO
Vg
S
Vg2
Vg1
1
2
3
4
5
6
VG
VG
S
9
8
7
SUCTION
RETURN
SUCTION
RETURN
Low flame stage
High flame stage
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
