Dux sunpro 2F136S - Electrical Connections; Electrical Regulations; Safety Devices and Warnings

Owner’s Manual – Dux Electric Boosted Solar
17
H3161 025248 Rev. D
This water heater requires the following
electrical connections:
1. Solar Pump Module –
CONTINUOUS SUPPLY GPO must
be used.
2. Supplementary Electrical Boost
Element (3.6kW) – Off Peak
recommended, single phase 240V
A.C. supply. A 15 amp power
supply is needed.
Note: This water heater is designed to
allow the tank boost to be connected
to continuous or off peak power supply.
Large daytime users of hot water
that exceed the capacity of the off
peak boost option should connect to
continuous supply.
Element
The booster element is located midway
up the tank, so it heats up the top half of
the tank only. Thus, in a 400L tank, only
200L of water is heated. This booster
element is turned on only in times of low
solar gain (e.g. in winter or on cloudy
days), or when hot water is being used
faster than the solar heating can recover.
Once the top half of the tank is
sufciently hot, the booster element is
switched off.
This set up helps minimise electricity
costs, while still providing a reliable
back-up hot water supply.
Regulations
All electrical work must:
• comply with local regulations and
AS3000
• be conducted by a licensed
electrician.
Connections
For models not pre-wired with a exible
lead, connections are made at the
terminal block under the element cover.
Entry to the connection area is through
the hole below the element cover,
designed to accept a 20mm conduit.
For the electrician, the access cover
may be removed by undoing the two
screws on the cover and sliding the cover
downward to disengage it from the case.
Ensure that the conduit entry is well sealed
to achieve complete weatherproong.
Note: The water heater is tted with
a thermostat and over-temperature
energy cut-out. Under no circumstances
should the water heater be operated
without both these devices being in the
circuit. Replacement must be carried
out only by a qualied electrician or the
manufacturer.
Danger: The operation of the thermal
cut-out indicates a possibly dangerous
situation. Do NOT reset the thermal
cutout until the water heater has been
serviced by a qualied person.
Electrical Connections