The environmentally friendly alternative to traditional boiler heating systems

CO2 ECO Heating System Energy efficient air to water heat pump technology

Introducing CO2 ECO Heating SystemWhen you are looking for a new boiler to meet your hot water and central heating needs there are many factors to take into consideration.

With the CO2 ECO Heating System from SANYO you can enjoy low cost heating with low emissions. What’s more it is easy to install, practically maintenance free and can be used with most standard domestic systems.

For economical domestic heating that won’t cost the earth, SANYO’s CO2 ECO Heating System heat pump is the natural choice.

CO2 ECO Heating System is good for your home, your pocket and the environment.

• Environmentally-friendly

alternative to gas and oil

• Provides hot water and central heating via radiators or under floor

• Free energy from a renewable source

• High efficiency - low running costs

• Proven technology

• Easy to install

• High water temperatures

• Reliable

• Minimum maintenance

• Low carbon emissions

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Facing the futureWith increasing concern about the link between carbon emissions and rising global temperatures, the need to use energy more efficiently is becoming ever more pressing.

World powers are working together to tackle the

problem with international negotiations including

UN Conferences, Kyoto Mechanisms and the

Intergovernmental Panel on Climate Change.

But although targets are set at national and

international level, behaviour must change on

an individual basis to have any hope of battling

global warming.

As individual consumers we are beginning to consider

the environmental impact of our buying decisions:

choosing hybrid cars, opting for recyclable packaging,

considering food miles - and increasingly scrutinising

the homes we buy and the way we heat them.

With the introduction of environmental legislation,

such as SAP building regulations and home information

packs, in future acting responsibility will become less

of a choice for the homeowner or builder and more of

a necessity.

The challenge for manufacturers now is to provide

sustainable alternatives to traditional technologies.

SANYO is committed to developing environmentally sustainable technologies

Pioneering climate control

SANYO introduced heat pump air conditioners in 1960

and has continued to pioneer the industry ever since with

the ECOi Electric VRF system, which dramatically improved

energy efficiency; the Gas-driven VRF system with

latest models that also generate hot water and electricity;

Solar air conditioning units; and the Virus Washer that suppresses 99% of airborne viruses from treated air

including the common cold, flu and avian flu.

SANYO has continually stepped up to this challenge.

Its reputation as innovator has been earned over years

of continuous research and development resulting in

industry leading products that have blazed a trail in

terms of efficiency and environmental sustainability.

SANYO’s sustainable energy solutions include Eneloop

rechargeable batteries, hybrid car batteries and solar

power cells. In fact SANYO is a world leader in the

development of photovoltaic solar cells.

In 2005 SANYO announced its brand vision,

‘Think GAIA’. Gaia is the mythical goddess of the

earth and was the name chosen by English Scientist

James Lovelock to express the concept of the earth as

a single living organism where mankind and all living

things can coexist in harmony. SANYO is committed

to business practices and developing technologies that

are beneficial and not damaging to this harmonious

relationship but protect it for future generations.

SANYO is the world leader in solar PV cells

The Virus Washer effectively suppresses viruses, bacteria

and allergens

Hybrid car batteries - including Ford Galaxy and Honda Accord

Eneloop batteries can be recharged 1000 times

Highly efficient air conditioning for heating and cooling

AQUA washing machine uses ozone rather than detergent

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Heating for a healthy planetTraditionally domestic heating has been provided by fossil fuels (coal, electricity, oil, gas, LPG). These resources are not only finite but the burning of them is also a major contributor to carbon emissions. The EU is launching legislation to rule on the environmental and efficiency performance of heating systems such as the Energy Performance of Building Directive (EPBD), the ECO label or REACH.

A burning issue

We must not underestimate the

affect our home heating choices

can have on energy consumption

and carbon emissions.

• The provision of heating and hot water accounts for over 50% of energy consumption in domestic buildings and far outweighs other energy use in the home.

• Domestic heating and hot water accounts for about 83% of delivered energy, 68% of the carbon emissions and 50% of the energy costs.

• Conventional ‘wet’ central heating systems (gas or oil boilers with radiators) were responsible for over 80% of domestic heating and hot water energy consumption.

Source: Market Transformation Programme, Sustainable Products 2006 (UK market)

Meanwhile energy prices are hitting new heights and

are likely to carry on increasing: oil and gas supplies are

expected to peak in 2010 and then decline by 3% every

year. Although we are more familiar with traditional

forms of heating such as fossil fuel boilers or electric

heating, there is a heating solution that offers low

running costs, is less dependent on fossil fuels and

has greatly reduced CO2 emissions. The answer is heat

pump technology.

Heat pumps are a proven technology used for several

years in Scandinavia and increasingly in other areas of

Europe. Governments are recognising the role they can

play in meeting environmental targets and France has

already introduced tax breaks to incentivise their use so

market penetration is likely to increase quickly.

Total Energy Usage in the home

83% Space and water heating (excluding electric water heating) 8% Appliances

3% Lighting

2% Cooking

2% Consumer electronics

2% Electric hot water heating

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Efficiency can be increased

and carbon emissions

reduced even further when

the CO2 ECO is combined

with other renewable

sources such as solar

water heating systems.

What is a Heat Pump?Like many of the best ideas, heat pump technology is simple at its heart.

1 Air comes into contact with a liquid refrigerant in the evaporator. The refrigerant absorbs the ambient heat from the air and evaporates.

2 The resulting gas passes to a compressor, which increases the pressure, and therefore the temperature, of the gas.

3 The hot compressed gas now passes to the condenser where it is passed over a cold surface. This surface absorbs the heat from the gas and uses it to heat. As the gas cools it returns to its liquid state.

4 The liquid travels to an expansion valve where it resumes normal pressure then returns to the evaporator to be recycled around the system.

5 The hot water is stored in the tank unit and then pumped around the house or to your tap to provide hot water and central heating as required.

Free energy

The sun’s rays heat up the air, water and ground. Heat

pump technology simply extracts this free energy.

Even at ambient temperatures as low as -25ºC there

is enough heat in the atmosphere to enable SANYO’s

CO2 ECO Heating System, an air to water heat pump, to

heat your home.

The only additional energy the system requires is the

power to drive the heat pump compressor. In fact,

if CO2 ECO Heating System is connected to a clean

energy source, such as solar power, running costs

and CO2 emissions can be reduced even further.

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Small change - big difference

The International Energy Agency (IEA) projects that 1.2 billion tons, or 6%

of the world’s CO2 emissions, could be removed if the ownership rate of heat

pumps reached 30% worldwide. According to SHERHPA (Sustainable Heat

and Energy Research for Heat Pump Applications) by 2030 the annual carbon

emissions of heating a typical EU home could decrease from 8 to 1 tonne of CO2

by using a heat pump system.

The CO2 ECO extracts free energy from the outside air

Highly efficient

To measure how efficient a system is we compare the

amount of power needed to run it and the energy it

outputs. This ratio is expressed as the Coefficient of

Performance or COP. A traditional electric heater has a

COP of around 1: every 1kW of power used produces

only 1kW of heat, a gas boiler has a COP of less than 1.

In comparison, because the CO2 ECO Heating System

Heat Pump Boiler takes up to 75% of its energy directly

from the air and only draws on an additional power

source for the remainder, it has a COP of up to 3.75.

As a result you can look forward to far lower energy bills.

Connect to solar systems

8 9

Sanitary hot water to 65ºC

CO2 refrigerant also allows higher working temperatures

compared to HFC heat pumps. Whereas other

manufacturers heat pumps can provide warm water

to 45-50ºC they require an electric booster heater to

increase the temperature to meet hot water needs.

maximum working temperature

SANYO’s CO2 heat pump can achieve temperatures of

65ºC, ideal for domestic hot water, without the need

for any secondary heating. This temperature is also

high enough to remove the risk of legionella. Other

systems can only achieve this by using the electric

back up automatically every few days. With CO2 ECO

Heating System there is no need to pay for inefficient

electric heating.

Easy to control

The CO2 ECO Heating System controls are intuitive

and easy to operate. They allow you to determine your

preferred hot water temperature and create your ideal

indoor environment. The 7-day week program means

you can adapt your space heating and hot water to

reflect whether you are out at work or relaxing at home.

Low installation & running costs

The CO2 ECO Heating System is simple to install and

increased efficiency means investment payback can be

realised within 3-5 years. It is compatible with all standard

radiators and under floor heating systems so there is no

need to replace anything but your existing boiler.

Around three quarters of an average household’s

power consumption is taken by water and space

heating. Because the CO2 ECO Heating System heat

pump boiler is highly efficient and takes two thirds of

its energy consumption free from the air, you can look

forward to greatly reduced fuel bills.

Low maintenance

The CO2 ECO Heating System Heat Pump does

not require any of the annual safety inspections

and regular maintenance required for gas and oil

boilers making this an extremely convenient and

low cost option.

Uniquely flexible

CO2 ECO Heating System only uses water and

electricity to operate so it is ideal for properties that are

not connected to the mains gas supply. With a choice

between 4.5 and 9.0kW capacity models and a single or

3-phase power supply, it is uniquely flexible to meet the

needs of homes and small commercial properties alike.

Performs even in temperatures as low as -25ºC

HFC refrigerants can generally only operate in

temperatures of down to around -10ºC. Below this

they rely on a built-in electric heater to take over. Since

electric heaters have a low COP of around 1, the result

is a significant drop in overall unit efficiency. The CO2

ECO Heating System heat pump with its CO2 refrigerant

can operate continuously, even in temperatures as low

as -25ºC with no need for an electric back up heater

making it far more efficient.

The SANYO AdvantageUnlike other heat pump systems which use a group of environmentally harmful gases called Hydrofluorocarbons (HFCs and HCFCs), SANYO’s solution is to use R744 as its refrigerant, which is carbon dioxide (CO2), an entirely natural and non-toxic gas that is sealed within the system.

Characteristics of Natural refrigerant r744 (CO2)

ODP* GWP**

R744 CO2 Natural Refrigerant 0 1

R410A HFC 0 1900

R407C HFC 0 1600

*Ozone Depletion Potential **Global Warming Potential

Heat Pump Capacity

Outdoor Temperature

Conventional 9.0kW HFC Heat Pump

SANYO CO2 ECO Heat Pump

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CO2 ECO Heating Domestic System – An Overview

Radiators and under floor heatingJust like any other water heating system, CO2 ECO

Heating System connects to standard radiator fittings

and under floor heating pipes to provide space heating.

You can enjoy superb comfort all year round without

the need for an inefficient electric back up heater even

when temperatures outside are well below zero.

Indoor unit

The CO2 ECO Tank Unit is a highly sophisticated

hot water management system that simultaneously

provides water at different temperatures for domestic

hot water, radiator heating and under floor heating. It

houses two electrical emergency heaters used only

when outdoor temperatures drop below -25ºC or there

is an unusually high demand for hot water.

Hot waterThe SANYO CO2 ECO Heating System provides

you with abundant hot water and, unlike heat pump

systems from other manufacturers that use HFC

refrigerants, it has a high working temperature of

65ºC. This is sufficient to achieve the temperatures

you need for showers and baths without the need

for an electric booster heater – so you can enjoy low

energy bills too.

Control systemThe room sensor continually sends information back

to the control system on the tank unit. The 7-day

timer allows you to adapt your hot water and space

heating to suit the rhythm of your life, while simple

override functions allow you to turn it on or off and

make it warmer or cooler so you can always enjoy

maximum comfort.

Outdoor UnitThe heart of SANYO’s CO2

ECO Heating System lies in the

compact heat pump unit. Situated on

an exterior wall it is extremely simple to

install and benefits from quiet operation.

Using only a small amount of electric power

it takes around two thirds of its energy from

the atmosphere. Even at ambient temperatures

as low as –25ºC enough heat is absorbed by the

liquid CO2 refrigerant to cause it to evaporate. The

CO2 gas is then pressurised in a compressor causing

it’s temperature to rise. This heat then transfers to

water from the main supply and the CO2 cools and

condenses back to its liquid state then passes through

an expansion value and regains normal pressure ready

to pass through the system again.

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Solar water heatingThe SANYO CO2 ECO

can be combined with

renewable sources such

as solar water heating

systems to further

increase efficiency and

reduce carbon emissions.

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Ideal for existing homesFor the homeowner replacing their existing boiler, wishing to cut energy costs and reduce their carbon footprint, or a developer undertaking a refurbishment, the CO2 ECO Heating System is the logical choice offering the following benefits.

l It can offer an efficient alternative to households that do not have mains gas connection.

l All essential parts are housed in one outdoor unit so installation is extremely simple.

l No annual safety inspections required so maintenance costs are extremely low.

l Compatible with your existing standard radiators and under floor heating so minimum fuss and disruption.

l Cuts carbon emissions by around 50%

l Three times as efficient as oil and gas for lower energy costs.

l Lower energy consumption will make it easier to sell your property in future.

Ideal for new propertiesIf you are a self-builder or a developer building new homes or commercial units for sale or the letting market, the CO2 ECO Heating System can provide a low carbon, low cost alternative to traditional hot water and central heating solutions with the following benefits:

l Easy installation aiding faster building completion and return on investment.

l Choice of capacities (4.5kW and 9.0kW) to suit large and small buildings.

l Single or Three Phase power so ideal for domestic and small commercial applications.

l No gas mains connection required so greater flexibility regarding location.

l No annual safety checks required – keeping landlord costs low. Ideal for social housing and the letting market.

l Low carbon emissions and renewable heat source - meeting government targets and legislation regarding environmental performance.

l Low energy consumption making property more attractive to buyers and tenants.

Simple InstallationThe CO2 ECO Heating Domestic System is easy to install consisting of a single 4.5kW or 9.0kW capacity outdoor heat pump unit and an indoor unit tank. The system connects to all standard radiators and under floor heating systems.

The units are self-contained and require only water and

electricity connections. To fit the CO2 ECO Heating

System the installer needs to be trained in the design

and installation of domestic hot water systems.

Training and advice for installers is available from

all SANYO distributors.

Because the system is sealed there is no handling of

refrigerant so no refrigerant handling certificate is required.

The SANYO CO2 ECO is easy to service with easy access

to electrical components, and good fault tracing functions

in the operating program.

Outdoor UnitCO2 Compressor

Exhanger

Evaporator

Water Supply

Boiler Unit

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The SANYO CO2 ECO Heat Pump has proved the perfect heating solution for Björn and Anna Lind’s Swedish home.

When their oil and electricity powered furnace needed

replacing they considered traditional boilers but with the

steep rise in fuel prices they were concerned about high

running costs. Geothermal (or ground source) heating,

in which heat pump technology is used to extract heat

from the ground offers low running costs but involves

drilling a hole deep into the ground so they were put off

by the initial outlay.

They finally decided on the SANYO CO2 heat pump. Like

geothermal heating, it uses ambient heat to provide

domestic hot water and space heating but takes it from

the air instead of the ground avoiding expensive drilling.

A key factor in the Lind’s decision was its impressive

energy efficiency – two thirds of its power comes from

the atmosphere and only a third from the national grid.

One year on the family is delighted. “With SANYO’s

simple controls we enjoy consistent heat all the time

and we don’t even notice how cold it is outside,” Anna

explains. “Even better, we have saved about 25% on

our energy costs.”

When the price of fuel oil continued to increase Mr & Mrs Knowles decided to look for an alterative energy source to provide their hot water and heating for the home.

Geothermal (or Ground source) heating in which heat

pump technology is used to extract heat from the

ground offered low running costs but involved drilling

a bore hole either deep into the ground or digging up

their back garden both of which were expensive and

inconvenient.

They finally decided to use an air source heat pump

selecting the SANYO C02 Eco system. Like ground

source it uses ambient heat to provide space heating

and domestic hot water but it takes it from the air rather

than the ground and therefore is a lot easier to install. A

key factor in the decision process was that the SANYO

C02 Eco system could be retrofitted to their current

heating and hot water system without any radiator

changes as the system can provide hot water at 65ºC

without using back up electric heaters.

The initial impression was the installation was fast and

trouble free and the outdoor unit was extremely quite.

The initial running costs are over 30% lower than the

previous system as well as being a lot cleaner to use.

Refurbishment customer story:

The Lind Home

When Karl and Ingrid Andersson built their dream house the SANYO CO2

heat pump meant they didn’t have to compromise on their home comforts or the environment.

The couple were concerned about rising energy costs

and were seeking a green alternative to oil and electric

heating systems. They investigated heat pumps, which

take 75% of their energy from the air, but found most

models become very inefficient under 0ºC and stop

working around -10ºC. With Sweden’s cold winters this

would mean using an inefficient back up heating system.

The SANYO CO2 ECO was the perfect solution. Its

environmentally friendly CO2 refrigerant keeps it working

without a back up heater even when temperatures

drop as low as -25ºC.Other systems also depend on an

electric back up system to heat water sufficiently for

baths, showers and washing but the SANYO system’s

high operating temperature makes this unnecessary too.

Now Karl and Ingrid are enjoying under floor heating

on all three levels and plenty of hot water: “We would

not hesitate to recommend the SANYO heat pump. It

was the only viable environmentally friendly heating

system we could find and it has certainly lived up to

our expectations.”

New build customer story:

The Andersson Home

When Mr Jones wanted to open a small coffee shop on

a busy high street he discovered to his dismay that there

was no mains gas supply to his retail outlet. Although

this was not a problem for his coffee machine he knew

that normal electric heated hot water and over door air

curtains were expensive to run (COP of below 1).

By opting for a SANYO CO2 ECO water heater he was

able to feed 65ºC hot water to his over door heater

and use the hot water side to feed the basins in his

customer toilets as well as his counter basins. The

result so far are indicating a combined COP of over

3 and therefore three times cheaper to run then if he

used a hot water heater and an electric door curtain.

Light commercial story:

The coffee shopFor the light commercial user the SANYO C02 Eco offers a unique opportunity to reduce running cost and C02 emissions whilst maintaining the required water temperatures for hot water services and heating in local systems such as air curtains and staff facilities.

The traditional old home story:

Retro fit

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Sophisticated Controls

The SANYO CO2 ECO’s digital control panel is extremely

user friendly with an easy to understand menu system

that makes it easy to personalise settings for maximum

comfort. Built-in day by day controls allow you to

vary temperatures throughout the day e.g. reducing

temperature at night or whilst you are away working.

Sophisticated room sensors continuously send

information to the control system to allow for fast

adjustment to the correct temperature.

You can even operate via an optional “Minicall”

system, connected with a sim card for SMS messaging

enabling you to set the indoor temperature from your

mobile phone and also view information such as all

temperatures in the tank unit.

Technical informationThe complete heating management system

The SANYO CO2 ECO Tank Unit is specifically designed to work with the CO2 ECO Heat Pump. It is a highly sophisticated hot water management system that simultaneously provides water at different temperatures for domestic hot water, radiator heating and under floor heating whilst at the same time working with other hot water sources such as solar heating systems.

Automatic temperature adjustment

The controls automatically adjust

the water temperature depending

on the outside temperature.

Therefore as the external

temperature drops the heating

inside the house increases to

ensure year round comfort.

l The built-in copper coil provides abundant domestic hot water at 65ºC

l For best performance the integrated motorised mixing valve automatically adjusts to the temperature required by the radiators / under floor heating or domestic hot water.

l Micro chip operation monitors all functions, makes specific adjustments and simplifies fault locating.

l Polyurethane insulated tank for increased efficiency and reduced temperature loss

l Electric back up heaters provide hot water in case of emergency or unusually high demand.

Domestic hot water outlet

Cold water feed Outlet for central heating

Heating return

Mixing valve to control water temperature

Connections to heat pump unit

Polyurethan insulated tank

Top section of tank water stored at 65ºC - suitable for domestic hot water and radiator systems

6kW lower electric heaterfor emergency back up

Open space on thebackside of the tank unit

Adjustable feet

All system connections are on top of the tankunit for easy installation

Plastic top cover.Pull and lift to remove

Control panel

9kW upper electricback up heater

Connections to optional solar water

heating systemBottom part of tank water stored at 35-45ºC for underfloor heating

Circulating pump between tank unit and

heat pump unit

Draining valve(tank unit and radiator

system)

Valves to close the tank

1 Status diodeGreen light: The product is in normal operation.

Red flashing light: The product needs attention. See message in the display.

2 Step back buttonYou step back to the former menu or exit a setting.

3 reset buttonThis button lights up red when the product needs attention. Press the button for resetting the alarm.

4 DisplayGraphic display, back ground lighted. Gives 8 rows of information.

5 OK buttonWith this button you confirm a value or a choice.

6 Step up/down buttonsWith this buttons you step up/down in menus or increase/decrease values.

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2

3

4

5

6

Prime flowtemperature

Outdoortemperature

The set value of the gradient is the primary flow temperature at an outdoor temperature of -15ºC

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Tank Unit Specifications

*The 9kW is used during day periods of high demand.; 6kW is used for emergancy backup use only

4.5 kWSingle Phase

9.0 kW Single Phase

9.0 kW Three Phase

mobel number HP Unit SHP-C45DEN SHP-C90GEN SHP-C90GDN

Performance

Water temp / flow return ºC 35ºC / 25ºC 65ºC / 35ºC 35ºC / 25ºC 65ºC / 35ºC 35ºC / 25ºC 65ºC / 35ºCOutdoor ambient ºC 15ºC 7ºC -5ºC 15ºC 7ºC -5ºC 15ºC 7ºC -5ºC 15ºC 7ºC -5ºC 15ºC 7ºC -5ºC 15ºC 7ºC -5ºCCapacity output kW 4.82 5.10 5.30 4.90 4.90 5.18 9.29 9.21 9.59 8.87 8.51 9.39 9.29 9.21 9.59 8.87 8.51 9.39Input power kW 1.21 1.37 1.82 1.60 2.10 2.60 2.29 2.49 3.43 2.86 3.31 4.34 2.29 2.49 3.43 2.86 3.31 4.34COP 4.00 3.70 2.90 3.10 2.40 2.00 4.10 3.70 2.80 3.00 2.60 2.20 4.10 3.70 2.80 3.00 2.60 2.20Electrical ratingsPower supply 1 ø / 230V / 50Hz 1 ø / 230V / 50Hz 3 ø / 400V / 50HzMaximum current 1 x 16A 1 x 20A 3 x 10ARefrigerant / amount R744 (CO2) / 1.4kg R744 (CO2) / 1.4kg R744 (CO2) / 1.4kgOperation noise 49.0 dB-A 49.0 dB-A 45.0 dB-ACompressor DC Rotary 2 Stage DC Rotary 2 Stage DC Rotary 2 Stage

DimensionsNet H/W/D 690mm / 840mm / 290mm 1,235mm / 930mm / 340mm 1,235mm / 930mm / 340mmShipment H/W/D 765mm / 943mm / 433mm 1,330mm / 1,044mm / 420mm 1,330mm / 1,044mm / 420mm

Weight Net / Shipping 65kg / 72kg 105kg / 115kg 105kg / 115kg

The world’s first CO2 rotary two-stage compressor

At the heart of the CO2 ECO

Heating System is SANYO’s

innovative rotary two-stage

compressor system, a world

first in compressor design. The

compressor is resistant to high

working pressure differentials,

has high reliability through load

dispersion, low leakage and low

vibration. It operates at a quiet

45 dB(A) noise level and, at only

9kg, the compressor is compact

and lightweight.

Optional Connector & Control Kit• A connector is available so that the CO2 ECO

Heat Pump Unit can be used with other hot water systems.

• Complete control system for the CO2 ECO Heat Pump

• Designed to connect CO2 ECO to existing heating systems / boilers

• Suitable for most hot water systems including those with and without mixing valve regulation

• Wall mounted with easy to use temperature controls

For more details about the ACC-CO2 Control Kit contact your SANYO representative.

Technical information

Key features

l Environmentally friendly R744 (CO2) refrigerant

l Choice of 4.5kW and 9.0kW capacity

l COPs of up to 3.75

l High performance DC rotary compressor

l Inverter control and 3-phase 400V or single phase 240V power supply

l High efficiency split refrigerant cycle

l Reliable and rugged design

l Freeze protection circuit

l Highly efficient refrigerant-to-water heat exchanger

High Pressure

Medium Pressure

Low Pressure

Compressor Motor

1st Compressor 2nd Compressor

Specifications subject to change without notice

Tank Unit Options Capacity 4.5kW system 9.0kW systemPower supply 1ph-230V 3ph-400V 3ph-230V 1ph-230V 3ph-400V 3ph-230VHP unit SHP-C45DEN SHP-C45DEN SHP-C45DEN SHP-C90GEN SHP-C90GDN SHP-C90GENTank unit SHP-TH45GEN-SW SHP-TH45GDN-SW SHP-TH45GHN-SW SHP-TH90GEN-SW SHP-TH90GDN-SW SHP-TH90GHN-SW

4.5 kW Single Phase 9.0 kW Single Phase 9.0 kW Three Phasemodel number Tank unit SHP-TH45GDN-SW SHP-TH90GEN-SW SHP-TH90GDN-SWTank capacity 223L 223L 223LMaximum working pressure 2.5 bar 2.5 bar 2.5 barMaximum working pressure tap water 10 bar 10 bar 10 barAuxillary electric heater capacity 9.0kW + 6.0kW* 9.0kW + 6.0kW* 9.0kW + 6.0kW*Power supply 1 ø / 230V / 50Hz 1 ø / 230V / 50Hz 3 ø / 400V / 50HzMaximum current 35A 35A 3 x 25A

DimensionsNet H/W/D 1,562mm / 600mm / 624mm 1,562mm / 600mm / 624mm 1,562mm / 600mm / 624mmShipment H/W/D 1,736mm / 700mm / 747mm 1,736mm / 700mm / 747mm 1,736mm / 700mm / 747mm

Weight Net / Shipping 160kg / 205kg 160kg / 205kg 160kg / 205kg

Heat Pump Unit Specifications

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Your questions answeredis heat pump technology a new development?

No. It is a proven technology. Heat pumps have been

used to extract heat from the air, water and the ground

for decades and are particularly popular as a power source

for domestic heating systems in Scandinavian countries

and also for air conditioning systems across Europe.

Now with increasing international concern regarding the

environment, this highly efficient, low carbon technology

is being adopted more widely across Europe for use in

domestic heating.

What is new is the use of CO2 as a refrigerant.

This makes the CO2 ECO Heating System truly

groundbreaking.

How does a heat pump work?

An air to water heat pump such as CO2 ECO Heating

System, extracts heat from the air and transfers it to a

liquid refrigerant inside the heat pump. The refrigerant

evaporates. The gas is then compressed causing its

temperature to rise. The hot gas is then passed over a cold

surface, releasing the heat allowing it to be used for water

and space heating. The refrigerant then passes through

an expansion value returning it to normal pressure and it

returns to the evaporator and the cycle begins again.

How efficient is the CO2 ECO Heating System compared to HFC heat pumps?

HFC water pumps can achieve temperatures of 45-50ºC

and use an electric booster heater to raise the water

temperature further as required for hot water and space

heating. The use of a power hungry electric heater

counteracts the efficiency benefits of the heat pump

reducing the overall efficiency significantly. CO2 ECO

Heating System achieves a higher working temperature

of 65ºC so it doesn’t need an inefficient electric booster.

What is the maximum water temperature available from CO2 ECO Heating System?

The maximum temperature is 65ºC, high enough to kill

legionella without the need for electric booster heaters.

Ideal for domestic hot water and central heating using

radiators.

What is the lowest ambient temperature CO2 ECO Heating System will function at?

Because of the properties of R744 (CO2) ECO Heating

System refrigerant, and its robust design, the system

will operate continuously at temperatures as low as

-25ºC. In comparison the efficiency of systems using

HCFC or HFC refrigerants drops sharply at temperatures

below 0ºC and cannot operate below -10ºC. Below this

level electric back up heaters take over, resulting in a

significant drop in overall unit efficiency.

How much hot water does the CO2 ECO Heating System supply?

The smaller 4.5kW outdoor unit is capable of supplying

enough hot water to meet the normal central heating

and hot water usage needs of most domestic homes

up to 130m2 in size. The high capacity 9.0kW unit can

provide hot water and heating to meet the needs of

homes up to 240m2 in size.

How does the CO2 ECO controller work?

The CO2 ECO heating system is simple to operate via a

simple digital control unit on the front panel of the hot

water tank.

Using just a few buttons to navigate thorough an

intuitive menu structure it is possible to adjust the room

temperature, set your desired hot water temperature

and programme hour-by-hour operation over a 7-day

period to ensure maximum comfort whatever the

ambient temperature. The boiler can even be remotely

operated via a ‘Minicall’ system.

What qualifications should an installer of SANYO’s CO2 ECO Heating Domestic System have?

Any installer needs to be trained in the design and

installation of domestic hot water systems. Because

there is no refrigerant handling involved there is no

need for a refrigerant handling certificate.

is CO2 ECO Heating System easy to maintain?

CO2 ECO Heating System does not require the annual

safety inspections and regular maintenance that gas and

oil boilers require.

Where can i buy CO2 ECO Heating System?

The System is supplied to heating installers by SANYO

distributors. Visit www.sanyoaircon.com to find your

nearest distributor.

Can i combine a solar water heating system with the CO2 ECO Heating Domestic System for even more environmentally friendly heating?

Yes. The SANYO CO2 ECO system has been designed

to make connection very easy. Your installer will be

happy to answer your questions.

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www.sanyoaircon.com

SANYO reserves the right to make any variation in specification to the equipment described or to withdraw or replace products without prior notification or public announcement. All descriptions, illustrations, drawings and specifications in this publication are given in good faith, but are intended to present only general particulars and shall not form any part

of the contract. For full installation details, please contact your SANYO distributor.

Ref: CO208V2

ISO 14001: 2001Certificate Number: ECOOJ0303-33

Indicates conformation with EC Directives

ISO 9001: 2001Certificate Number: JQ116B

Printed using paper produced from 50% recycled material and 50% from sustainable forestry.

SANYO CO 2 – The new generation of heating solutions.