Conducting service work on the automated primary burner controller LMO
5
Buderus Blue Flame Burner BE 1.3 - 2.3 - Specifications subject to change without notice.
12
5
Conducting service work on the automated primary burner
controller LMO
The LMO operates and monitors the burner at all times.
The flame is monitored by a blue-flame sensor. The
LMO receives a heat demand from the heating system
control or boiler Aquasmart control.
In case of a fault the reset button (Fig. 6,
Item 1
) on the
LMO allows troubleshooting (see Chapter 5.3 „Repair-
ing faults in the automated burner controller LMO“,
page 14).
5.1
Program sequence
Fig. 6
Automated burner controller LMO
Item 1:
Three color indicator light and Reset button
Item 2:
Latch to release
1
2
WARNUNG!
DANGER TO LIFE
from electric shock.
z
Never open the automated burner con-
troller LMO and never attempt repair or
modifcations.
z
Never operate the unit after the LMO
has been dropped or taken a hit. Safety
functions may be affected even if there
is no visible damage.
Fig. 7
Automated burner controller program sequence
= control signals
= required input signals
= allowed input signals
yellow
yellow
gleaming
green gleaming
Legend:
R
Temperature and pressure control
W
Temperature and pressure monitor
SB
Safety limiter
OH
Oil pre-heater
OW
: Oil pre-heater activation
M
: Burner motor
BV1
: Solenoid valve 1
Z
: Ignition transformer
FS
: Flame signal
LED
: 3-color indicator light
tw
: Wait time
t1’
: Ventilation time
t1
: Pre-ventilation time
t3
: Pre-ignition time
t3n
: Post-ignition time
TSA
: Start-up safety time
A´
: Start of operation in burner with "OH"
A
: Start of operation in burner without "OH"
B
: Time of flame formation
C
: Operating position
D
: Control shutoff by "R"
