PV 20a
Table 8 X1 and X2 connectors
X1 Description X2 Description Ash removal +
1 Igniter 1 Ash removal -
2 Igniter 2 Ash removal +
3 N 3 Battery positive terminal
4 Flue gas fan 4 Battery negative terminal
5 Mains transformer 5 Flame sensor
6 Mains transformer 6 Flame sensor
7 Fan 7 Feed screw - (black)
8 L 8 Feed screw + (red)
9 Thermostat 9 Mains transformer
10 External auger 10 Mains transformer
BUT – User interface buttons
CONTR – LCD contrast and viewing angle adjustment
FAN – Internal air fan speed feedback sensor
FDR – Feed screw motor speed feedback sensor
TRS – Fuel level sensor transmitter (black marking)
RSV – Fuel level sensor receiver (white marking)
TEMP1 – Feed screw tube temperature sensor
TEMP2 – Ambient temperature sensor
TEMP3
UART – RS232 interface for external modem (5V TTL).
Fuses:
Fuse Rating Function
F1 0.5A quick External auger
F2 1A quick Fan
F3 0.5A quick Flue gas fan
F4 3A quick Igniter
F5 2A quick Controller and feeder motor
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