45
SUN M20 - M30
GB
KodL MNOOPPQO - RevL SS - TQUQSTQ
fig. 11
Key
A
Start-up
C
Burner operation position
D
Adjustment stop with command from R
the burner is immediately turned off
the flame control device prepares for a new
start
I
Cam 1
AL
Fault signal (alarm)
BV...
Fuel valve
EK2
Remote reset
FS
Flame presence signal
GP
Gas pressure switch
LP
Air pressure switch
LR
burner power regulator
LK
air shutter
B-B'
Flame stabilisation interval
C-D
Burner operation
M
Fan motor
R
Thermostat or pressure switch
SA
Servomotor
SB
Safety thermostat
TSA
Ignition safety time
W
Control pressure switch or thermostat
Z
Ignition transformer
tw
Standby time
t1
Pre-ventilation time
t3
Pre-ignition time
t3n
Ignition time during (TSA)
t4
Interval between (End TSA-BV2) or (BV1-LR)
t10
Delay for air pressure switch consent
t11
Air shutter servo control opening time (SA)
t12
Air shutter servo control closing time (SA)
12
10
3
7
9
4
5
6
11
1
8
A
B
B'
C
D
SB/R
W/GP
AL
LK
M
Z
SA
BV1
(LR) BV2
LP
FS
EK2
I
t10
tw
t1
t3
t3n
t4
t11
t12
TSA
