Unigas S10, Установка, эксплуатация и обслуживание, Страница: 16 / 32

PART III: MAINTENANCE 16
TROUBLESHOOTING
* See Fig. 21.
If the power supply to the burner is 230V phase-phase
(without a neutral), with the Landis LGB2... o LMG2... flame
control device, between the terminal 2 on the board and the
earth terminal, an RC Landis RC466890660 filter must be
inserted
Key
C - Capacitor (22nF/250V)
LGB - LMG - Landis flame control device
R - Resistor (1Mohm)
RC466890660 - RC Landis filter
Fig. 21
CAUSE / FAULT
B
URNE
R DO
E
S
N’
T
S
T
A
R
T
B
URNE
R CO
NT
INUE
S
P
R
E
-P
URG
UE
B
URNE
R DO
E
S
N’
T
S
T
A
R
T
A
ND L
O
CK
S
B
URNE
R DO
E
S
N’
T
S
T
A
R
T
AN
D
R
E
PE
AT
S T
H
E
CY
CL
E
B
URNE
R S
T
A
R
T
S
A
ND
RE
P
E
A
T
S
T
H
E
CY
CL
E
NURM
E
R
DO
E
S
N’
T
S
W
IT
CH T
O
H
IG
H
F
L
A
M
E
B
URNE
R’
S
L
O
CK
UO
T
DURING
O
P
E
R
A
T
IO
N
B
URNE
R S
T
O
P
S
A
ND
RE
P
E
A
T
S
CY
C
L
E
DURING
O
PER
AT
IO
N
B
URNE
R’
S
L
O
CK
O
U
T
A
F
T
E
R
ST
AR
T
T
H
E
F
L
A
M
E
CO
NT
RO
L
DE
V
ICE
RE
P
E
A
T
S
CY
CL
E
W
IT
H
O
U
T
G
IV
E
CO
NS
E
N
T
MAIN SWITCH OPEN
●
FUSES INTERVENTION
●
ABSENCE OF GAS
●
MINIMUM GAS PRESSURE SWITCH FAULT OR
BAD SETTING
● ● ● ●
BOILER THERMOSTATS OPEN
●
AIR PRESSURE SWITCH FAULT OR BAD SETTING
● ● ● ●
DEFECTIVE FLAME CONTROL DEVICE
● ● ● ● ● ●
DEFECTIVE AIR DAMPER SERVOCONTROL
●
DEFECTIVE IGNITION TRANSFORMER
●
IGNITION ELECTRODE WRONG POSITION
●
BUTTERFLY VALVE BAD SETTING
●
DEFECTIVE GAS GOVERNOR
● ● ● ●
DEFECTIVE HIGH-LOW FLAME THERMOSTAT
●
SERVOCONTROL CAM BAD SETTING
●
DETECTION ELECTRODE BAD POSITION OR
DEFECTIVE DETECTION CIRCUIT
● ●
PHASE-PHASE SUPPLY OR PRESENCE OF
VOLTAGE ON NEUTRAL*
●