About hot water

Different uses

Hot water heat pumps can be used in a variety of ways from underfloor heating to water chilling. Mitsubishi Electric Water Solutions require engineering input from your Mitsubishi Electric Specialist.

Underfloor Heating

Underfloor Heating Systems are used in many new homes to heat flooring areas. These systems use warm water circulated through pipes buried in the floor slab and deliver radiant energy to heat the rooms, providing the ultimate in comfort.

Connecting a Mitsubishi Electric Hot Water Heat Pump to an Underfloor Heating System is simple, as most existing Underfloor Systems include the necessary in-floor water pipes, distribution manifolds, pumps and controls. The water from the Hot Water Heat Pump is piped to the underfloor heating panel, and is circulated through the Underfloor Heating System. The heating temperature is controlled by either the underfloor system controller, which is supplied by the heating installer, or by the Mitsubishi Electric Hot Water Heat Pump wall-mounted controller which provides individual system set up requirements.

Sanitary Hot Water

Packaged and Split Systems 5.0~16.0kW

On both new and existing installations, Mitsubishi Electric PUHZ Series Hot Water Heat Pumps combined with the PAC-IF031 Water Flow Temperature Controller allow heating of sanitary hot water by intelligently switching between the heat pump and the electrical immersion element in the hot water cylinder. This ensures that the water is kept at the ideal temperature of 60°C in your hot water cylinder to kill bacteria such as Legionella.

Designed for our hot water heat pumps we have a range of low and mains pressure hot water cylinders fitted with heat exchanger coils. Existing installations may require an additional heat exchanger external to the cylinder, unless it’s a coiled or ‘solar ready’ type.

VRF Commercial 12.5 ~ 45.0kW

The new Mitsubishi Electric PWFY-P~AU, PWFY-P~BU and CAHV Water Heating Units allow water to be pre-heated and even fully heated by using the waste heat energy normally lost into the atmosphere from a commercial air conditioning system. It is also possible to provide the same heating from a stand alone PWFY system to heat water up to 70°C. Depending on the system required and whether an existing system is used to recover energy, this offers energy savings from 300 – 550%.

Spa Pools

Spa pools consume more power than many swimming pools, due to higher temperature and potential heat losses. Installing a Hot Water Heat Pump to an existing spa pool can significantly reduce your heating costs. Power consumption can be reduced by 3 to 4 times.

Note: We have a new range of Titanium coil / PVC shell heat exchangers which are matched to our PUHZ hot water heat pump units. This removes any risk of corrosion damage due to salt or chlorine water treatment and simplifies pool water pipe work.

Swimming Pools

Many swimming pools are used in only the warmest summer months and often remain unused for the rest of the year. Installing a Hot Water Heat Pump can enable you to enjoy your swimming pool year-round!

Note: We have a new range of Titanium coil / PVC shell heat exchangers which are matched to our PUHZ hot water heat pump units. This removes any risk of corrosion damage due to salt or chlorine water treatment and simplifies pool water pipe work.

Hydroponics

Most hydroponic growing systems require the water or nutrient solutions to be heated to a specific temperature dependant on the crop. The heated water is then pumped around the growing beds to provide both heat and nutrients to the plants. As the Heat Pump controller can be set to accurately control the water temperature, sensitive crops are easily cared for. With the ability to alter the temperature remotely, the Heat Pump can be interfaced with most green house controllers and hydroponic growing systems. The advanced “Eco Mode” allows flow temperature compensation based on outside air temperature to ensure the highest possible energy efficiency.

Aquaculture

Aquaculture systems often require both heating and cooling depending on the species and time of year. For example, Paua cultivated on land and indoors will require some heat in winter and often an amount of cooling in summer time.

Water Chilling

Water chilling is available down to a flow temperature of 6°C from a capacity of 4.5kW to 14kW in the PUHZ range and from 20kW in the PWFY range. The systems require external pumps and, depending on application, a brine or antifreeze solution will be required to prevent freezing of the plate heat exchanger. Applications include small process and liquid data cooling, and chilled water for selected fan coil units.

Different uses