AquaMAX EM50 Series - Manual (Page 26)

25
Electrical & Electrical Connections
Warning: The power supply to the water heater must not be switched
on until the water heater is filled with water and a satisfactory megger
reading is obtained.
All electrical work must be carried out by a qualified person in accordance
with AS/NZS 3000, AS/NZS 3008 and any local authority requirements.
E80 ~ E400 models & EM50 models without a power supply lead &
plug: The water heater must be directly connected to a dedicated
240V AC, 50Hz mains power supply with over current protection and an
isolating switch installed at the switchboard. The power supply wires
insulation temperature rating and current carrying capacity must be suitable
for this application.
The power supply to a twin element model should be Off-Peak (overnight)
to the bottom heating unit and continuous to the top heating unit. The
power supply to a single element model can be either an Off-Peak
(overnight), Extended Off-Peak (overnight and day) or continuous electricity
supply, depending upon the size of the water heater. Check with the local
electricity supply authority as to their requirements. An Off-Peak (overnight)