Hitachi

Residential Heat Pumps

 

Hitachi has the heat pump or air conditioning system to suit your home.

pic2   W4461 Another Hitachi Day 4.ai

 

From easy-to-install wall mounted heat pumps to complete home solutions like ducted air conditioning.

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Wall Mounted Heat Pumps
Suit Home or Business

  • High Efficiency
  • Allergen Filtration
  • Easy Installation & Servicing
  • Six Year Warranty

Multizone Systems
Suit Home or Business

  • High Efficiency
  • Allergen Filtration
  • Easy Installation & Servicing
  • Six Year Warranty

 

 

Floor Mounted Heat Pumps
Suit Home or Business

  • High Efficiency
  • Allergen Filtration
  • Easy Installation & Servicing
  • Six Year Warranty

Ducted Split System
Suit Home or Business

  • Unobtrusive Design
  • Quiet Operation
  • Even Airflow

 

 

Premium Inverter Multi Split Systems
Suit Large Home or Business

  • High End Technology
  • Super Efficiency
  • Highly Adaptable

 

LCD remote system controllers

The handy infrared remote control allows you to accurately select the desired room temperature from the comfort of your armchair. All commands are shown clearly on the liquid crystal display. A smart system of one touch buttons can create the perfect environment with ease.

The new SPX-WKTI Weekly Timer is available as an optional extra. Offering 5 different programs for each calendar day with start and end times and temperature control. Customise settings for “Weekly Program” or use the “Temporary Operation Mode”. Choice of 5 fan settings: Auto/High/Medium/Low/Sleep.

Totally Safe

Even when you are not at home. The unit sits high on the wall out of the reach of children. There are no ugly electric cords on the floor to trip over, no flammable fluids, no fumes and no dangerous hot elements.

Invest in efficiency

Energy Star

This logo is awarded to appliances that are among the most energy efficient on the market in their class at the time of testing. Only ENERGY STAR® models can qualify for a heat pump subsidy under EECA’s ‘Warm Up NZ’ campaign.

High Performance

Hitachi advanced technology leads in power efficiency. A measure of this efficiency is called the Coefficient Of Performance, or COP. Hitachi heat pumps have excellent COP. For every 1 kW of electricity used by our heat pumps, more than 3.5 kW of heating or 3 kW of cooling is delivered to your room. The Energy Efficiency graph beside shows how effective our heat pumps are compared to other heating methods.

Installing a Hitachi heat pump means no more heat going up the chimney, and no more cluttering up your home with a host of power hungry appliances. What is more, our heat pumps disperse warm or cool air throughout your room, unlike traditional radiators.

 

 

Enhance the Value of Your Home

Hitachi modern air conditioning systems are compact, elegant, and unobtrusive. Each system comprises an indoor unit (wall mounted) and an outdoor unit (located near the house), sized to suit the area to be air conditioned. Select from a range of models all designed to blend in with your environment.

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Commercial Air Conditioning

 

Wall Mounted Heat Pumps
Suit Home or Business

  • High Efficiency
  • Allergen Filtration
  • Easy Installation & Servicing
  • Six Year Warranty

Multizone Systems
Suit Home or Business

  • High Efficiency
  • Allergen Filtration
  • Easy Installation & Servicing
  • Six Year Warranty

 

 

Floor Mounted Heat Pumps
Suit Home or Business

  • High Efficiency
  • Allergen Filtration
  • Easy Installation & Servicing
  • Six Year Warranty

Ducted Split System
Suit Home or Business

  • Unobtrusive Design
  • Quiet Operation
  • Even Airflow

 

 

Premium Inverter Multi Split Systems
Suit Large Home or Business

  • High End Technology
  • Super Efficiency
  • Highly Adaptable

Cassette Split Systems
Suit Business (Commercial installation)

  • Unobtrusive Design
  • Quiet Operation
  • Even Airflow

 

Hitachi has the heat pump or air conditioning system to suit your business. From easy-to-install wall mounted heat pumps to complete solutions like ducted air conditioning.

Follow the links below for further information on our range of commercial products.

Hitachi products are supported and distributed in New Zealand by Temperzone Ltd – NZ’s largest air conditioning manufacturer and exporter, established in 1956.

Hitachi Air Conditioners

Hitachi air conditioners can disperse warm or cool air evenly throughout your whole room, unlike traditional radiators that only work in a localised area. Come home to a place that you’ve programmed to reach the perfect temperature with Hitachi’s set-and-forget thermostat. Your desired temperature is achieved quickly, and then accurately and effectively maintained, automatically. You can be comfortable all year round at the touch of a button

 

 

Topic 2: Heat Pumps:

 

A heat pump is a machine or device that moves heat from one location (the ‘source’) to another location (the ‘sink’ or ‘heat sink’) using mechanical work. Most heat pump technology moves heat from a low temperature heat source to a higher temperature heat sink.[1] Common examples are food refrigerators and freezers, air conditioners, and reversible-cycle heat pumps for providing thermal comfort.

Heat pumps can be thought of as a heat engine which is operating in reverse. One common type of heat pump works by exploiting the physical properties of an evaporating and condensing fluid known as a

refrigerant. In heating, ventilation, and air conditioning (HVAC) applications, a heat pump normally refers to a vapour-compression refrigeration device that includes a reversing valve and optimized heat exchangers so that the direction of heat flow may be reversed. Most commonly, heat pumps draw heat from the air or from the ground. Some air-source heat pumps do not work as well when temperatures fall below around ?5°C(23°F).

Types of heat pumps

The two main types of heat pumps are compression heat pumps and absorption heat pumps. Compression heat pumps always operate on mechanical energy (through electricity), while absorption heat pumps may also run on heat as an energy source (through electricity or burnable fuels).

A number of sources have been used for the heat source for heating private and communal buildings.

air source heat pump (extracts heat from outside air)

air–air heat pump (transfers heat to inside air)

air–water heat pump (transfers heat to a tank of water)

geothermal heat pump (extracts heat from the ground or similar sources)

geothermal–air heat pump (transfers heat to inside air)

ground–air heat pump (ground as a source of heat)

rock–air heat pump (rock as a source of heat)

water–air heat pump (body of water as a source of heat)

geothermal–water heat pump (transfers heat to a tank of water)

ground–water heat pump (ground as a source of heat)

rock–water heat pump (rock as a source of heat)

water–water heat pump (body of water as a source of heat)

 

What are Heat pumps/Air Conditioners?

Heat Pumps cum Air Conditioners create a comfortable living and working environment for your Homes, Offices, Shops and Businesses.

Heat pumps work as heaters in cold weather and automatically adjust as air conditioners when the space is hot.

Heat pumps are among the most efficient heating option on the market – Consumes Institute

A 6 star heat pump will use 1 KW of electricity to produce about 5 KW of heat – EECA

Modern air conditioners/ Heat pumps come with a variety of features and high tech sensors and filtration systems. Leading brands such as Panasonic, Mitsubishi, Daikin, Fujitsu, Toshiba etc. have some specific features developed by them. Specific features of leading brands of heat pumps:

Intelligent Eye detects your presence in room and if you leave the room for more than 20 minutes, the Heat pump/Air conditioner will go into econo mode of operation to save you the power.

Iron Freshener – Negative iron generator – creates feeling of freshness

High coefficient of performance – saving you power costs and most efficient operation

Inverter system – variable speed compressor to match the heating/cooling load and energy saving – constant temperature comfort

Positives

Warm, dry and comfortable

Heat pumps can provide a level of all-round comfort not easily obtained by plug-in electric heaters. They can quickly bring a room up to temperature and then maintain it.

Lower heating costs

If you install a heat pump and keep your home about as warm as you do now, you could save a considerable amount in heating costs. But some of our subscribers with heat pumps tell us they use their units to keep their homes warmer than before, so their heating bills haven’t dropped by much.

No gas charge

If you install a gas heater, you’ll have to pay a gas connection charge (often around $30 per month) all year round, for a heating appliance you use for a few months.

Cooling

A reverse-cycle heat pump is the only type of home heating system that can both heat and cool a room.

Dehumidifying

If you switch a heat pump into cooling mode, it will also dehumidify the air in your house. In heating mode, heat pumps warm the air but don’t dehumidify. Some units have a special dehumidifying mode, but this is designed for humid tropical climates and is not suitable for New Zealand winter conditions.

Air filtering

Many modern heat pumps incorporate a washable filter unit that removes dust and particles from the air. This could be an important feature for people with asthma and allergies. The filters need regular cleaning to keep the unit working at maximum efficiency. Some have a deodorising function as well.

House value

A heat pump installation may also add to your home’s resale value.

If you’re thinking about buying a heat pump, you need to consider the climate you live in and the features you require.

Climate

In areas with hot humid summers, good cooling performance may be important. If you live in a colder area, you’ll want a model that has good heating performance. Look for a model that claims to be able to operate at temperatures below the worst you’d expect.

When the outside unit of a heat pump detects ice, it will automatically de-ice and stop producing heat. This is most likely to occur as the air temperature approaches freezing (at below-zero temperatures all the water in the air will have frozen and formed frost or snow, so the unit should no longer ice up). This can happen to all heat pumps but some do a better job of cold-weather performance than others.

H2 output capacity

This shows the heat output capacity of the heat pump when

the air temperature is 2°C. The H2 output capacity really matters if you live in a colder area, especially where the night temperatures go below 5°C but don’t often dip below zero. If this is your climate, insist on being told what the H2 output capacity is.

The bigger the H2 output capacity the better. It’s optional to have H2 output capacity on energy labels, but we hope makers will adopt it.

If the H2 information can’t be supplied make sure your contract with the supplier says that you’ll get adequate heating during cold nights.

Features

Think about the features you particularly want in your heat pump. These may include:

Automatic de-icing is vital if you live in a cold area – otherwise, in winter, the pump will stop providing heat because of frost build-up on the outdoor heat-exchanger coils. This is a standard feature on newer inverter models.

A timer lets you switch the heat pump on and/or off automatically at certain times. However, there are big differences. A clock-based timer allows you to programme an actual “on” and “off” time, and the times you set remain active until they’re cancelled. A 7 (or more) day timer usually allows multiple on and off times.

Sleep mode adjusts the temperature in several steps (up when cooling, down when heating) so that the system works less hard and more quietly when you’re sleeping. You can programme how long you want the sleep mode to operate.

Airflow-control settings provide reduced airflow for quiet operation and/or extra-high airflow (may be called fast or jet operation). Ideally, you want your heat-pump/air-conditioner to have a big range of airflow settings. A high airflow will help distribute the air in a room more quickly – but the higher the airflow, the noisier and draughtier it is. So you want a low fan-setting that circulates the air but does so quietly, especially if you’re using the inside unit in your bedroom.

Oscillating louvers allow the air to be distributed more evenly.

Adjustable louvers can be pointed up for cool air and down for warm. Left and right adjustability helps direct air where it’s needed.

Fan-only mode blows air without heating, cooling, or drying. This can provide adequate cooling at some times of the year, without the cost of running the heat pump.

Restart delay is a protective feature that prevents the heat pump from starting up again too soon after being switched off.