HeatKing

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The Renewables Division of TEV Ltd
HeatKing A Division of TEV Limited
Air Source Heat Pumps
Tom Askew
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The Renewables Division of TEV Ltd
TEV Ltd West Yorkshire, UK

• UKs Leading Packaged A/C
  Manufacturer
• Formerly part of the IMI plc
• Employs 70 people
• Manufactured heat pump
  equipment for over 30 years
• Development laboratories including 3 Test Rooms

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The Renewables Division of TEV Ltd
TEV Ltd
Air Source Heat Pumps
Packaged Air Conditioning and Refrigeration
Chilled Water Fan Coils, Chillers and Chilled
Beams
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The Renewables Division of TEV Ltd
Agenda

• What is an Air Source Heat Pump?

• Ease of Installation

• Where Air Source Heat Pumps make sense

• Features Benefits of HeatKing ASHP

• Questions and Answers

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The Renewables Division of TEV Ltd
What is an Air Source Heat Pump?

• A Heating product using refrigeration technology
  to extract heat from the inexhaustible, renewable
  supply of ambient air

• Efficiencies of well over 300 possible compared
  with boilers of sub 100.

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The Renewables Division of TEV Ltd
How an ASHP works
77C
Low pressure cold Gas
High pressure Hot Gas
-3C
-2C
50C
Compressor
Outside Air
Condenser
0C
Evaporator
Thermostatic Expansion Valve
43C
45C
-5C
Low pressure Cold liquid/vapour
Htg Return
High pressure Cool Liquid
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The Renewables Division of TEV Ltd
Types of Heat Pumps
Ground Source
Air Source

• Positives
• Constant performance
• No de-frost
• Installed indoors or out

• Positives
• Lower capital cost
• Lower installation cost
• Easy to install as retrofit to existing
  buildings

• Negatives
• High capital cost
• High installation cost
• Difficult to retrofit
• Requires ground works

• Negatives
• Performance varies
• De-frost affects COP

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The Renewables Division of TEV Ltd
Heat Pumps have been around for many years
Whats new?
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The Renewables Division of TEV Ltd
New Compressor Technology

• Works in lower ambients

• Provides hotter flow temperatures

• Ability to provide higher CoPs (Coefficient of
  Performance)

Software and Microprocessor Advances

• More efficient defrost cycles

• Advanced weather compensation control

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The Renewables Division of TEV Ltd
Easy to Install
Means cheaper to install
Flow Return Connections No Refrigeration skills
or pipework required Buffer tank not a necessity
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The Renewables Division of TEV Ltd
Ease of Installation

• Connect Power

• Connect Thermostat and Timer wiring

• Electrical Softstart fitted as Standard
• No inverter harmonics concerns

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The Renewables Division of TEV Ltd
Flexible Siting
Remote Installation

• Pre-insulated Pipe
• Heat loss 11W per M
• Cost 25 per M

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The Renewables Division of TEV Ltd
Floor Mounting
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The Renewables Division of TEV Ltd
Wall Mounting
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The Renewables Division of TEV Ltd
Flexible siting allows difficult installations..
.. To be overcome
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The Renewables Division of TEV Ltd
Where ASHPs make sense

• Off Mains Gas grid

• Reduce CO2 emissions

• Reduce Oil pollution

• Fuel Poverty

• New Build

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The Renewables Division of TEV Ltd
HeatKing Product Range

• BWarm Range (6, 8 and 12KW, 55ºC flow temp)

• Bwarm i Range (9 and 13KW, 65ºC flow temp)

• BCool2 Range (6, 8, 12 and 13KW, Heating and
  Cooling)

• Master and Slave (up to 60kW)

• Ground Source Heat Pumps Q2 2010

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The Renewables Division of TEV Ltd
Word of Caution

• Check the CoPs of the units at the ambient
  temperature and flow temperature you require

• Check the duty of the unit at the design ambient
  temperature

• SIZE UP THE UNIT CORRECTLY

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The Renewables Division of TEV Ltd
Selecting a heat pump
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Features Benefits of Heatking
The Renewables Division of TEV Ltd

• Heating Optimised Scroll Compressor
• No Inverter losses
• More efficient below 5oC
• Vapour Injection Technology
• 65ºC flow temp
• No direct electric heating used during defrost

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Vapour Injected Compressors
The Renewables Division of TEV Ltd
Htg Flow
77C
Low pressure cold Gas
High pressure Hot Gas
-3C
Compressor
50C
Outside Air
Condenser
Evaporator
TEV
43C
Heat Exchanger
-5C
Htg Return
Low pressure Cold liquid/vapour
Thermostatic Expansion Valve (TEV)
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Features Benefits of Heatking
The Renewables Division of TEV Ltd

• Single outdoor unit
• Saves internal space
• Buffer tank not mandatory

• Single Storey Construction - Fits below eye
  level of most window sills

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Features Benefits of Heatking
The Renewables Division of TEV Ltd

• Local UK Manufacturer
• Proven UK Market Reliability
• Defrost Cycle optimised for UK Climate
• Running costs reduced by not requiring direct
  electric heating during defrost cycle

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Features Benefits of Heatking
The Renewables Division of TEV Ltd

• No Buffer Tank Required
• Weather Compensation fitted as standard
• Experience of CESs client base and their
  requirements

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Features Benefits of Heatking
The Renewables Division of TEV Ltd

• Built in Microprocessor
• Built in Isolator
• Option of 2kW Boost Heater
• 65oC Flow temperatures available with out direct
  electric heating boost

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The Renewables Division of TEV Ltd
Example Installations (over 1300 sold to date)

• Esk Valley
• Metropolitan Housing Trust
• Kirklees Council
• Cornwall Rural H/A
• Cumbria (2 Valleys H/A)
• Perth Kinross
• Yorkshire Coast Homes
• High Wycombe Council
• Leeds MBC
• St. Leger Homes
• Maultway Homes
• Devonshire Homes

• Neath (Transco)
• Inverness
• East Riding Council
• West Lothian
• Calderdale
• Dunfermline
• Fort Augusta's
• Tain
• Charter Housing
• Monmouthshire Council
• Weavervale H/A
• Northern Ireland
• Republic of Ireland

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Questions Answers
The Renewables Division of TEV Ltd