Potterton Paramount four - 10.2 Maintenance messages; 10.3 Standard inspection and maintenance operations

10.2 Maintenance messages
10.2.1 Maintenance code table
Servicing code Maintenance description
1 Burner operating hours exceeded
2 Burner starts exceeded
3 Maintenance interval exceeded
10.2.2
Operating phases of the Control Centre LMS
The operating phases are displayed after the information key has been
pressed.
Phase number
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, ionisation
current build-up
TSA1 Safety time constant Flame monitoring with ignition
TSA2 Safety time variable Flame monitoring without ignition
TI Interval time Flame stabilisation
MOD Modulating mode Operating burner
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 pressure,
lack of gas)
SAF Safety switch-off
STOE Fault position The current fault mode is displayed.
For more information, see
Fault code table, page 134
10.3
Standard inspection and maintenance operations
10.3.1 Clean siphon
The condensate siphon should be cleaned every year.
1. Loosen the upper screwed fitting on the siphon.
2. Pull the siphon down and off.
3. Remove the siphon completely from the Paramount four together
with the hose.
10 Maintenance
130 Paramount four 30 – 115 kW 7658013 - 02 - 15092016