10.12 Maintenance code table
Maintanance codes Maintenance description
1 Burner operating hours exceeded
2 Burner starts exceeded
3 Maintenance interval exceeded
10.13 Operating phases of the
Control Centre LMS
Press the information key to display the operating phases.
Phase no.
Display Operating state Description of function
STY Standby (no heat demands) Burner on stand-by
THL1 Fan start-up Self-test for burner start and fan start-up
THL1A
TV Pre-purging time Pre-purging, fan deceleration time to starting load speed
TBRE Waiting time Internal safety tests
TW1
TW2
VDE Ignition phase Ignition and start of safety time for flame formation, ioni-
sation current build-up
tsa1 Safety time constant Flame monitoring with ignition
tsa2 Safety time variable Flame monitoring without ignition
it Interval time Flame stabilisation
MOD Modulating mode Burner in operation
THL2 Subsequent ventilation with last operating
fan speed
Fan continues to run
THL2A Subsequent ventilation with pre-purging fan
speed
Fan continues to run
TNB Burner shut-off delay Permitted burner run-on time
TNN Overrun time Permitted fan run-on time
STV Start prevention No internal or external release exists (e.g. no water pres-
sure, lack of gas)
SAF Safety switch-off
STOE Fault position The actual fault code is displayed, see fault code table
Maintenance
7308272-03 03.14 Paramount three 30-115 kW 137
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