BCU 460, BCU 465 · Edition 11.19 60
Program step/status
9 Program step/status
DISPLAY
1)
Program step/status
00
Start-up position/Standby
A0
Cooling
2)
P0
Pre-purge (external)
H0
Delay
01
Burner pause time t
MP
A1
Pre-ventilation
2)
0
“No flow” state check of low air pressure protection device
1
Low air pressure protection check
A
Approaching minimum capacity/closed position
2)
A
Approaching maximum capacity
2)
P1
Pre-purge (internal)
A
Approaching ignition capacity
2)
HX
Delay (in program step X)
Valve check
02
Safety time 1
A2
Safety time 1 (with air)
03
Flame proving period 1 t
FS1
A3
Flame proving period 1 t
FS1
(with air)
04
Burner 1 operation/controller enable
A4
Burner 1 operation/controller enable (with air)
09
Over-run up to minimum capacity
P9
Post-purge
Data transfer (programming mode)
– –
Device Off
1)
In Manual mode, four dots flash on the display.
2)
Air actuator (control element/valve) is open.
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