Pelltech PV20a - Replacing Battery; Status Change Logics

PV20a / PV30a pellet burner
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DK9902A1 www.pelltech.eu
10. Mount spiral back to motors shaft and fixate it with screw (4mm hex wrench). Spiral must stay cluck
but it must not come off from the motor when pulled strong.
11. Reconnect motors wires to connector X2. Correct placing of wires is given in Annex 1.
Replacing battery 4.8.8
When multiple power failures have occurred recently, the battery may be just empty. In that case the
battery just needs to recharge and replacing the battery is not necessary.
Battery must be replaced when the burner gives BATTERY LOW message even though it has been
recharged or after 5 years. As the battery is also safety device, burner monitors the state of battery and
blocks next work cycle if battery voltage is not within limits.
To replace battery:
1. Make sure that burner is disconnected from mains supply.
2. Remove burner’s red cover by loosening 4 screws (2 on both sides). See Figure 7.
3. Push the battery to remove it from burners housing. Battery is fixated to housing with double sided
tape.
4. Remove the wires from the battery.
5. Replace battery and fix it to base with new double sided tape.
6. Reconnect battery wires.
Warning! Red wire goes together with the red battery contact and black wire goes with black
contact. Wrong assembly of the battery will ruin the controller.
5 Status change logics
Status
Next Status
Change conditions
WAITING
TESTING
Boiler thermostat switches on.
TESTING
LOADING
All tests are done successfully.
BATTERY LOW
Battery voltage is below 12V.
FAN ERROR
Fan does not reach 40 rps at PRE-BURN.
FEEDER ERROR
Feeder in not able to make 1 rot in 8 seconds
LEVEL ERROR
The level sensor recognizes pellets in the feeder inlet.
LOADING
IGNITING
Loading rotations (PAR24) made by feeder.
FAN ERROR
Fan speed does not reach 35 rps.
NO PELLETS
Maximum loading time (5 min. normal or 20 min. manual start) is
reached.
END BURN
Flame detected but unknown start conditions. LOADING again.
IGNITING
PRE-BURN
Flame recognized.
LOADING 2
Max ignition time (255 sec.) is reached and load 2 is not done.
IGN. ERROR
Max ignition time (255 sec.) is reached and load 2 is done.
LOADING 2
IGNITING
Previous state was IGNITING, feeder made 3 rotations (PAR25) .
PRE-BURN
Previous state was HOLD FLAME, feeder made 3 rot.
PRE-BURN
BURNING
Max pre-burn time (PAR41) is reached and flame is continuously
recognized more then 5 seconds.
LOADING 2
Max pre-burn time (PAR41) is reached, no flame detected and
LOADING 2 is not done.
FLAME ERROR
Max pre-burn time (PAR41) is reached, no flame detected and
LOADING 2 is done.
BURNING
END BURN
No signal from boiler thermostat (HOLD FLAME is OFF in main
menu).
Table 11 Status change logics