PV700a / PV1000a pellet burners
p
45/ 59
DK9401B1 www.pelltech.eu
availability of fresh air and improve draught.
GRATE ERROR
Over- current of grate movers motor has exceeded value set in PAR47 and over- current
protection has applied.
o
Ash removing grate has jammed before reaching extreme point. Remove reason.
Motors power screw got dirty and stops rotation. Clean the screw.
Screen empty,
backlights on
Controller error or screen error.
o Replace respective component.
The contrast of screen is poor. Contrast can be adjusted with small screwdriver by turning
the resistor CONTR on down edge of controller. In one extreme the screen displays nothing
and in other extreme screen is filled with black rectangles.
Screen empty
no backlights
No mains supply.
6 Burner status change logic
Table 22 Error messages in screen
Status
Next Status
Change conditions
WAITING
TESTING
Boiler’s thermostat switches on.
TESTING
CLEANING
All tests are passed successfully
BATTERY
ERROR
Battery voltage is less than 24V in burdened status.
FAN ERROR
Fan does not reach 40 rps at PRE-BURN.
LEVEL ERROR
The level sensor recognizes pellets in the feeder.
CLEANING
LOADING
The grates are moved and ash is removed from burning chamber.
GRATE ERROR
Grates are not moving as expected.
LOADING
IGNITING
Feeder makes loading rotations 40 rot/min (PAR24).
NO PELLETS
Maximum loading time (5 min normal or 20 min initial) is reached.
END BURN
Flame detected and unknown start conditions. LOADING restarts.
LOADING 2
IGNITING
Previous state was ignition and feeder made 3 rotations.
PRE-BURN
Previous state was hold flame and feeder made 3 rotations.
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.
