Installation manual

39
Diagnostic Indicator
Dimensions 120mm (w) x 80mm (h) x 55mm (d)
Material Polycarbonate
Ambient temperature -25°C to +70°C
Nominal supply voltage 12V DC
Maximum supply voltage 20V DC
Cable Minimum 0.5mm2, 3 core, shielded
Problem Likely cause Solution
Power LED off 1) Aeromax Plus unit is off 1) Check that the Aeromax Plus
power is connected.
2) Wires connected incorrectly 2) Switch the Aeromax Plus unit off
Check the wires.
3) There is no 12V coming from the
Aeromax Plus unit
3) Check the connection on
the Aeromax Plus unit.
Wiring is correct and 12V applied
to the diagnostic indicator but the
LEDs are OFF.
1) Diagnostic indicator is damaged 1) Replace the diagnostic indicator
Technical specification
Before connecting any wiring to the diagnostic indicator,
turn the Aeromax Plus unit power off.
Use a minimum of 3 core cable to connect the
diagnostic indicator to the Aeromax Plus unit. Refer to
the wiring diagram below. If shielded cable is used the
shield should be grounded only on the Aeromax Plus
terminal strip (terminal no.3).
Electrical connection
Power LED (green) indicates that the Aeromax Plus unit is
powered ON.
Alarm LED (red) indicates when an error occurs. The error
code can be identified from the flashing LED using a fault
code table. Refer to the Aeromax Plus Installation Manual
for the alarm code explanation.
Troubleshooting
Installation Pack
Read the following instructions before starting the installation.
This product is a Diagnostic Indicator for Aeromax Plus heat pump models. It
indicates the alarm and power status of the Aeromax Plus unit.
It must be connected to the Aeromax Plus unit for correct operation.
Diagnostics