Repair Information
25
2.11.2.2 Plug connectors on board AVM3-2
Connector connected to Pin. def. Func. / Signal Color / No.
X5 internal X5-1 signal (+1-5 V) orange
IF flow sensor X5-2 +10V mint
X5-3 GND. violet
X5-4 n. c.
X5-5 n. c.
Connector connected to Pin. def. Func. / Signal Color / No.
X7 external X7-1 flow dep. signal. red
EF flow sensor X7-2 n.c.
X7-3 n.c.
X7-4 n.c.
X7-5 flow dep. signal. blue
Connector connected to Pin. def. Func. / Signal Color / No.
X8 Oxygen cell X8-1 n. c.
O2 X8-2 + voltage fuel cell red
X8-3 - voltage fuel cell blue
X8-4 n.c.
X8-5 n.c.
Connector connected to Pin. def. Func. / Signal Color / No.
X3 proportional X3-1 + 12V blue
PV valve X3-2 n. c.
X3-3 control volt. 0-5V gray
X3-4 n.c.
X3-5 GND green
Connector connected to Pin. def. Func. / Signal Color / No.
X11 solenoid X11-1 GND ( MV4) brown / 1
valve X11-2 + 10V (MV4) red / 2
block X11-3 GND (MV3) orange / 3
X11-4 + 10V (MV3) yellow / 4
X11-5 GND (MV1) green /5
X11-6 + 10V (MV1) blue / 6
X11-7 GND (MV2) violet / 7
X11-8 + 10V (MV2) gray / 8
2.12 Display
The display of the ventilator is a LCD or EL type. It is connected to the module 1.
2.13 Battery
The battery is a maintenance free seal lead acid type. The recharging time is a maximum of 7 hours
with a fully depleted battery. The backup time is about 30 minutes with a fully charged battery. To
prevent unintended loss of battery operation, it is recommended to replace it with a new HEYER
battery every 3 years.
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