VOLTAGE EXTERNAL CONTROLS

Set Appliance State:

Mains Power Off

CH Demand

WARNING! - Mains voltage is expected during test follow
TOPs P4 live testing procedure

Mains Power On

Observation:

Using a Socket & See, confirm appliance has;

Mains voltage present

Correct polarity

Earth impedance

Note:
Depending on appliance version it may have a "Socket & See" connection at the top of the PCB cover or a terminal block mounted at the bottom of the appliance.