Mitsubishi Electric Ecodan User manual

EcoDan Installation Manual Version 1.0 (26/01/09) Ice Energy Heat Pumps Ltd © 2008
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Ecodan Installation Manual

EcoDan Installation Manual Version 1.0 (26/01/09) Ice Energy Heat Pumps Ltd © 2008
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Contents
Contents .................................................................................................................................................. 2
For The User ........................................................................................................................................... 4
Heat Pump Control and operating principles........................................................................................... 4
First Months of Use ................................................................................................................................. 4
Maintenance............................................................................................................................................ 5
Heating System Maintenance Advice...................................................................................................... 5
Components............................................................................................................................................ 6
Items Included:........................................................................................................................................ 6
Not Included: ........................................................................................................................................... 6
For The Installer ...................................................................................................................................... 7
Specifications .......................................................................................................................................... 7
Installation Process (also see Mitsubishi Manual) .................................................................................. 9
Finding a suitable position for the EcoDan.............................................................................................. 9
For Ice Energy Engineer or approved Sub Contractor.......................................................................... 10
Securing the unit to the floor.................................................................................................................. 10
Internal Plumbing................................................................................................................................... 11
Internal Wiring ....................................................................................................................................... 14
Mitsubishi Flow Temperature Controller (FTC)..................................................................................... 15
Detailed Honeywell wiring diagram....................................................................................................... 16
EcoDan Main Supply............................................................................................................................. 16
Sentinel X500........................................................................................................................................ 19
Features & Benefits............................................................................................................................... 19
Dosing & Feeding.................................................................................................................................. 19
X500 Physical Properties ...................................................................................................................... 19
Technical Specification.......................................................................................................................... 20
Commissioning...................................................................................................................................... 21
General Notes ....................................................................................................................................... 21
Pre-Commissioning Check List ............................................................................................................. 23
Photos.................................................................................................................................................... 25

EcoDan Installation Manual Version 1.0 (26/01/09) Ice Energy Heat Pumps Ltd © 2008
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Important Information
Please read the whole of this document before
starting the installation.
There are parts you will need to buy to complete
the installation successfully, see page 6
If you have any questions, please telephone 01865
882202, and ask for Technical Support.
Pre commissioning check sheet is included that
should be completed correctly and sent back to us
prior to commissioning (see page 22)
Ensure that this manual is left with the
householder after installation.

EcoDan Installation Manual Version 1.0 (26/01/09) Ice Energy Heat Pumps Ltd © 2008
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For The User
Heat Pump Control and operating principles
The Ecodan air source heat pump system consists of an external box which is fitted to your outside
wall. It harvests renewable, low grade energy from the outdoor air and upgrades this into useful heat
to supply a home with hot water and heating. For every 1kW of electricity fed into Ecodan, you will get
at least 3kW of heating energy.
The outdoor unit is a bit like your fridge in that it has a circuit of factory-sealed copper piping
containing ozone-friendly refrigerant, which is continually compressed and expanded to extract the
free, renewable energy from the air.
Your fridge extracts heat from the box inside (to keep food cold) and rejects it at the back. The air
source heat pump works a bit like this but in reverse in that it extracts heat from the outdoor air and
upgrades it to heat up your hot water supply.
It can work efficiently all year round even if the outdoor temperature should drop to -15ºC.
The Ecodan range of air source heat pump systems have been developed by Mitsubishi Electric
specifically for the UK and bring advanced, inverter-driven technology refined in the commercial
heating sector to your home.
Ecodan in Operation:
Ecodan heat pumps are ideal for use in a variety of house sizes or styles and it’s carefully developed
control system is designed to work perfectly to provide hot water to either traditional radiators or under
floor heating systems.
Traditionally heat pumps have been seen as only suitable for under floor heating, however with the
advanced control system of Ecodan and it’s ability to provide optimum variable flow temperature
control, radiators can now be easily provided with the hot water they need and prove to be a very
efficient option.
Capacity control in radiator systems, with a fixed flow temperature is controlled by
Thermostatic Radiator Valves (TRV). These operate by turning the radiators on and
off to maintain the desired comfort level. For example at 2°C, with 55°C flow
temperature, the radiators will be on 50% of the time and off for the other 50%
of the time.
First Months of Use
The Ecodan will vary the flow temperature
automatically, based on the ambient temperature
to keep the house warm.
Operating at these lower flow temperatures
significantly improves efficiency.

EcoDan Installation Manual Version 1.0 (26/01/09) Ice Energy Heat Pumps Ltd © 2008
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The heat pump has been designed to supply enough heat to make up for the heat loss from the
building. If the heat pump is commissioned in the winter it may be found that the electric consumption
is high for the first few months. This would be due to the initial first start heat load and, on new builds,
the building being ‘wet’.
Maintenance
Your heat pump will operate efficiently for many years with minimal attention. An annual check to
clean the heat exchanger from debris is all it will require.
Heating System Maintenance Advice
Please consult the heating system installers as to any recommended maintenance requirements.
Safety valves fitted to the hot water and central heating systems should be checked annually.

EcoDan Installation Manual Version 1.0 (26/01/09) Ice Energy Heat Pumps Ltd © 2008
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Components
Items Included:
Ecodan External Unit
Hot Water Tank with immersion heater & temp sensor
Hot Water Expansion vessel & tundish etc…
Flexible hoses
Boiler buddy
Mitsubishi Flow Temperature Controller
Flow setter
Flow temperature sensor
Not Included:
Cables
Honeywell S-Plan control pack or equivalent
Any pipework insulation
Heating System pressure & safety kit
System Pump 1 x 15/60
2 x 22mm zone valves
X500 antifreeze (20ltrs)
2 x 22mm full bore isolation valves

EcoDan Installation Manual Version 1.0 (26/01/09) Ice Energy Heat Pumps Ltd © 2008
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For The Installer
Specifications
Cylinder
Cylinder Capacity Height Diameter Weight (full)
AUI 180 180 1281 550 225
AUI 210 210 1469 550 260
AUI 250 250 1719 550 305

EcoDan Installation Manual Version 1.0 (26/01/09) Ice Energy Heat Pumps Ltd © 2008
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EcoDan 5kW EcoDan 9kW
EcoDan 14kW

EcoDan Installation Manual Version 1.0 (26/01/09) Ice Energy Heat Pumps Ltd © 2008
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Installation Process (also see Mitsubishi Manual)
Finding a suitable position for the EcoDan
The unit must be bolted into place on a stable platform. The unit must also have free air flow as per
the diagram below.

EcoDan Installation Manual Version 1.0 (26/01/09) Ice Energy Heat Pumps Ltd © 2008
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For Ice Energy Engineer or approved Sub Contractor
Securing the unit to the floor
The unit should be mounted on anti-vibration pads, and bolted to the floor using M10 bolts as shown
below.

EcoDan Installation Manual Version 1.0 (26/01/09) Ice Energy Heat Pumps Ltd © 2008
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Internal Plumbing
The EcoDan will be installed onto a standard Honeywell S-Plan system. For details on the installation
of hot water cylinder please refer to the manufactures literature include in packaging.
The only additions to this are a Boiler Buddy and Flow Setter, seen on the following pages.

EcoDan Installation Manual Version 1.0 (26/01/09) Ice Energy Heat Pumps Ltd © 2008
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Boiler Buddy
1 ¼” BSP fittings. 2 x pump unions with isolators are used to fit the Boiler Buddy to the return pipe.
(fittings not supplied)

EcoDan Installation Manual Version 1.0 (26/01/09) Ice Energy Heat Pumps Ltd © 2008
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Flow Setter
The ‘flow setter’ is as shown above the circulating pump, and is to be fitted to the return pipe.
When we arrive to install the external unit we would expect to see the primary flow and return on the
outside of the building within 1m of the external unit. These should be sleeved and insulated as they
go through the wall using 19mm Armaflex.
Each pipe should terminate at a Ball Valve and the heating system should be filled and pressurised to
this point with water and antifreeze.
Ice Energy can supply Sentinel X500 anti-freeze. Please contact us for more information.
More information on Sentinel X500 is available later in this manual. (see pages 19,20)

EcoDan Installation Manual Version 1.0 (26/01/09) Ice Energy Heat Pumps Ltd © 2008
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Internal Wiring
Prerequisites:
A qualified part P certified Electrician is required to install the power supply
Nominal current draw ~ 10.3A heating, Maximum current draw ~ 23A
Care should be taken to ensure the power supply is weather proof
Supply cable should be either armoured cable, or twin + earth protected in conduit
Power should be isolated locally within 1.5 metres, minimum 3mm contact gap in isolator
An RCD (residual current device) should fitted in the supply to the Ecodan this should have a
tolerance of 30mA or more
The Honeywell S-Plan system will have to be wired to the Honeywell wiring centre as per the
instructions included.
This will include:
Hot Water Zone Valve
Heating Zone Valve
Heating Thermostat
Hot Water Thermostat
Circulating Pump
5 Amp fuse spur supply
Timer
The Honeywell wiring center will need a 5 core 1mm² cable run to the intended position of the
Mitsubishi Flow Temperature Controller (FTC).
Where more than one Heat pump is installed we will commission a bespoke controls system called a
step controller, this box will be located near to the hot water cylinder and is approximately the same
size as a consumer unit.
Hot water pasteurisation
In order to reach a temperature of 65 degrees to pasteurise the hot water to reduce the risks of
legionella, we recommend that the immersion heater is wired to a seven day timer and set to come on
once every seven days for approx 1hr to achieve this temperature.
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EcoDan Installation Manual Version 1.0 (26/01/09) Ice Energy Heat Pumps Ltd © 2008
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Mitsubishi Flow Temperature Controller (FTC)
Also refer to the Mitsubishi Manual.
The FTC is wall mounted and should be placed near to the cylinder. See ‘FTC wiring’ installation
details included in the box with External Ecodan Heat Pump.
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To allow the home owner to continue to operate both their central heating and hot water time clocking
using a commonly available two-channel controller, we have introduced the Flow Temperature
Controller (FTC) interface.
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The FTC will accept signals from a standard "S-Plan" piping configuration and operate the Ecodan in
either a Space or Water heating mode, as required. In a Space Heating mode the FTC will ensure that
Ecodan operates at optimum efficiency, varying the flow temperature to either the radiator or under
floor heating system to meet a homes heating requirements.
In a Water Heating mode the FTC will allow the Ecodan to work with leading brands of water storage
tanks. It is, however, important to consider that the overall performance of the system in Water
Heating mode will be very dependant on the thermal performance of the storage tank's heat
exchanger
Note: You should always wait at least two days when increasing or decreasing the heating before
making a new adjustment.

EcoDan Installation Manual Version 1.0 (26/01/09) Ice Energy Heat Pumps Ltd © 2008
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Detailed Honeywell wiring diagram
EcoDan Main Supply
The main supply for the EcoDan should be installed to the exterior wall within 1m of the EcoDan. The
supply should terminate at a waterproof isolator, and should be to the right hand side of the unit.

EcoDan Installation Manual Version 1.0 (26/01/09) Ice Energy Heat Pumps Ltd © 2008
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5 KW
Circuit Breaker size 16 Amp
Cable size 1.5mm
Maximum Running Current 13 Amp
Maximum Starting Current 3 Amp
9KW
Circuit Breaker size 25 Amp
Cable size 4mm
Maximum Running Current 23 Amp
Maximum Starting Current 5 Amp
14 KW
Circuit Breaker size 40 Amp
Cable size 6mm
Maximum Running Current 35 Amp
Maximum Starting Current 14 Amp

EcoDan Installation Manual Version 1.0 (26/01/09) Ice Energy Heat Pumps Ltd © 2008
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ESTIMATING THE VOLUME OF WATER SYSTEMS
Useful conversion factors:
1kW : 3,412 BTU's
1m3 : 1000 litres
4.546 litres : 1 gallon
The following guide to estimating system volumes has been developed from field
experience over many years. Multiply the boiler output rating in kWs by the figure given
below for the relevant type of system to give an estimate of the total system volume.
Commercial systems (pressurised):
Systems comprising of perimeter heating,
convectors, etc. : 6 litres/kW
Ventilation systems (air handling units, fan
coils, etc.) : 8 litres/kW
Steel panel radiators : 11 litres/kW
Cast iron radiators : 14 litres/kW
'Distant' heating systems in large sprawling
buildings : 20 litres/kW
Underfloor heating : 23 litres/kW
Domestic systems:
All small & microbore domestic
installations : 6 litres/kW
Allow an additional 10% (multiply by 1.1) for open vented systems of all types.

EcoDan Installation Manual Version 1.0 (26/01/09) Ice Energy Heat Pumps Ltd © 2008
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Sentinel X500
Sentinel X500 is an Inhibited Antifreeze for Central Heating Systems.
Features & Benefits
Suitable for all metals including aluminium
Manufactured under a quality system con-forming to ISO9001
Effective frost protection
Easy to handle
Helps prevent the formation of hydrogen gas
Effectively controls corrosion and scale Application
Sentinel X500 is a multipurpose inhibited anti-freeze formulated to help control corrosion, scale, boiler
noise and hydrogen gassing in all types of indirect heating systems including those containing
aluminium components. If minimum levels are maintained the product ensures a permanent protection
and does not need to be replaced. Sentinel X500 is suitable for use in all waters, both hard and soft.
The low toxicity formulation is colourless and easy to handle.
Dosing & Feeding
The dosage of Sentinel X500 will depend on the level of frost protection required. One 20L pail of
Sentinel X500 added to a typical domestic sys-tem of 8 to 10 radiator panels will provide the minimum
concentration of corrosion and scale inhibitor and also protection from freezing down to approximately
-6°C. Two 20L pails will provide protection to -20°C. Further information is avail-able upon request.
For best results, it is recommended that systems are cleansed and flushed in accordance with
BS7593; new systems and those up to 6 months old with Sentinel X300, existing systems with
Sentinel X400. If the system is already noisy due to lime scale deposits in the heat exchanger,
Sentinel X200 should be added together with Sentinel X500.
Open Systems: Dose via F&E cistern, via a by-pass feeder or use a Sentinel Dosing Vessel.
Sealed Systems: If the system is empty, add to any convenient point before filling. If full, use a
Sentinel Dosing Vessel to inject via the filling loop or other access point.
X500 Physical Properties
Appearance: Clear colourless liquid
Odour: Mild slightly sweet
Specific gravity: 1.03 (20°C)
pH in aqueous solution (5%): 7.3 (approx)
Freezing point: -58°C Packaging
5 litre bottle
200 litre plastic drum Safety Precautions
The information provided overleaf enables compliance with the Control of Substances Hazardous to
Health Regulations Full Material Safety Data Sheets are available upon request.

EcoDan Installation Manual Version 1.0 (26/01/09) Ice Energy Heat Pumps Ltd © 2008
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Technical Specification
X500 is an Inhibited Antifreeze for Central Heating Systems.
X500 is a solution of inorganic and organic corrosion and scale inhibitors in propylene glycol.
Health Hazards: Not for use in potable water systems.
Not considered hazardous to health.
Handling: Avoid contact with skin and eyes.
Keep out of reach of children and animals.
Wash out empty container thoroughly with water
before disposal.
Storage: Keep container tightly closed.
Store in cool, well ventilated area.
Spillage: Flush spillage with plenty of water and wash
to waste.
Spillage on Soil: Absorb on to inert material and dispose of according
to Controlled Waste Regulations.
Fire/Explosion
Risks: Non-flammable. Oxides of carbon and nitrogen
evolved in fire.
First Aid
Skin Exposure: Wash immediately with plenty of water.
Eye Exposure: Rinse immediately with plenty of water.
Seek medical attention.
Ingestion: Rinse mouth with water.
Do NOT induce vomiting!
Seek medical attention.
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