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1. FREE HEAT PUMP HOT WATER SYSTEMS
Free Heat pump hot water systems utilize a refrigeration
cycle to draw heat from the air in their surroundings. They
channel this heat to a heat exchanger, which then warms
water in an insulated storage cylinder. As a result, they
usually consume 60 to 75% less electricity than
conventional electric hot water systems since the
electricity is employed to power the heat pump rather than
directly heating the water with an element. These systems
are analogous to reverse-cycle air conditioners that heat
water instead of the air in your home when operated in
heating mode.

2. BENEFITS OF HEAT PUMP HOT WATER
• By opting for a heat pump, you can expect to see
a significant reduction in your hot water
expenses, resulting in considerable savings.
• The efficiency of these pumps is noteworthy, as
they generate three to five times more renewable
energy compared to an electric hot water system.
• Moreover, heat pumps are environmentally
friendly, producing significantly fewer greenhouse
gas emissions than other heating methods.
• Another advantage is that you don't need any roof
space or panels to install them. The installation
process is simple and requires the same inputs
and connections as an electric hot water system.

3. WHY IT IS FREE?
Due to the Victorian Government’s various initiatives,
like the Victorian Energy Upgrade Program (VEU) and the
Small Scale Renewable Energy Scheme; all eligible
Victorian residential and commercial properties can
enjoy free hot water system upgrades.

4. TYPES OF HEAT PUMP WATER HEATERS
Types of Installation:
 Air source heat pumps
 Ground source heat pumps
 Absorption heat pumps
Deciding Factors:
 Required Storage Capacity
 Methods of Heating Water
 Insulation of Pipework
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5. Types of Hot
Water Supply
System
Localised
Instantaneous
single points
Storage type
single points
Centralised
Direct
Electric water
heating
Gas storage
heaters
Boiler-cylinder
system
Instantaneous
system
The multi-port
The water-
jacketed tube
heater
The combined
primary
storage unit
Indirect
With
expansion
vessel
Vented storage
Unvented
storage
Others
Solar heating
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6. INSTALLATION
 The installation process for a hot water supply system in a
high rise building is more complex and requires an
enormous piping system.
 Several factors need to be taken into consideration,
including the type of hot water supply system to be
installed and the materials that will be used for the pipes.
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7. MAINTENANCE
 Monitoring temperature of hot water
 Larger scale of circulation in hotel which includes
principal loop, subordinate loops, and localized
loops (tertiary loops)
 Conducted at sentinel points
 Carried out monthly to ensure hot water is
supplied at suitable temperature
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8. THINGS TO CONSIDER BEFORE INSTALLING ASHP WATER
HEATERS
 Before installing the heat pump, an installer should:
 Please verify the location and available space where
the heat pump water heating system is to be
installed for both homeowners and businesses.
 Make sure that the bearing surface is level and
capable of supporting the system's weight. Take into
consideration the placement of the exhaust fan and
ensure that the circuit breaker and power cable
ratings match the recommended current ratings.
 Assess the airflow at the planned installation site
and ensure that the heat pump system remains
upright during the installation process.
 Consult with the homeowner or business manager
about the operational noise level. Finally, review the
product manual installation instructions.