3-9
Chapter 3. OPERATION
z Interlock during stand-by state
The system is not locked out though the interlock contact is disconnected or
changed to OFF during standby, and then a start signal is input, the system is locked
out and an alarm is output.
On the device, E1 (interlock) and P1 are displayed alternately.
-- E1 / P1
K1
K2
K3
K4
K5
K6
POWER
SHUTTER
FLAME
ALARM
START
IG
PV
MV
K7
Power supply
Burner start contacts
Interlock
Flame signal
Ignition transformer
Interrupted pilot valve
Intermittent pilot valve
Main valve
Flame monitor output
Alarm output
Load output
Sequence
display
LED display