Owner’s Manual – Dux Electric Boosted Solar
22
H3161 025248 Rev. D
The Hotlogic Controller
This device ensures optimum system
efciency and safety. The basic
functions are:
1. Detecting availability of useful solar
energy in the collectors. When the
temperature of the solar collector
is 10°C higher than the storage
tank temperature, the circulation
pump is initiated. If the difference in
temperature falls to less than 2°C
the circulation pump is stopped.
2. Controlling maximum storage tank
temperature. If the storage tank
temperature reaches 80°C, the
circulation pump is stopped to
prevent excessive temperatures in
the storage tank.
3. Frost Protection (for models
2F136SD, 3F136SD, 4F136SD
only). When the temperature
drops to near-freezing levels, the
Hotlogic controller will activate the
collector drain function and remove
water from the collectors. When
conditions become safe again,
the Hotlogic controller signals the
collectors to be re-lled. For models
2F136S, 3F136S, 4F136S, the
Hotlogic will keep the pump running
to avoid water freezing.
4. Over-temperature protection. Water
will be removed from the collectors
once the solar system can no longer
safely supply heat to the tank.
What Should I Do During Holidays?
The system can monitor and control
the solar collector temperature while
you are away. Whilst the system is safe
with the power turned off, the collector
temperatures can reach very high
temperatures, causing high stress to
their internal components.
The power supply to the solar
module must be left on.
Warning: If the hot water system is
not used for two weeks or more, a
quantity of hydrogen gas, which is highly
ammable, may accumulate in the water
heater. To dissipate this gas safely, it is
recommended that a hot tap be turned
on for several minutes at a sink, basin
or bath but not a dishwasher, clothes
washer, or other appliance. During this
procedure there must be no smoking,
open ame or any other electrical
appliance operating nearby. If hydrogen
is discharged through the tap, it will
probably make an unusual noise similar
to air escaping.
Note: There are no user serviceable
components in the solar control module
system. Only an authorised service
representative is permitted to remove
any covers or make setting adjustments.
Do not open or adjust any electrical
covers or devices yourself.
Owner’s Information
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