Would you enjoy the pleasures of living in an “oldie woldie palace (listed building) with cinema, banqueting hall, indoor and outdoor swimming pool, gymnasium, bar, nine bedrooms within 4.5 acres of cultivated gardens, overlooking the Surrey countryside.

Not without the comfort of the unobtrusive Hi Velocity cooling and heating systems project managed by Cooling and Heating Sales Ltd.

The client chose the Hi Velocity system based upon previous experience and insisted upon the project being managed by Cooling and heating Sales Ltd.

The project which also incorporates kitchen ventilation (catering for 50 covers), cold room, server room and wine cellar is progressing on programme for completion in October.

The HI Velocity systems are suitable for application in smallest apartment to the largest commercial building.

Please watch this space for further information and photographs.

Links – Hi Velocity

Why Architects find it so good

With the versatility of Hi-Velocity Systems, any energy source can be used to provide year round comfort. The systems are designed to be installed in many configurations, whether it be in the attic, closest, basement or mechanical room the versatility of the Hi-Velocity Systems allows for the maximisation of space.

Cooling and heating Sales specialise in serving  the whole of london and in particular the centre of London areas such as the west end and Mayfair.

If you require Air conditioning London please contact cooling and heating on

www.coolingandheating.info

The very latest development in Air Conditioning

Cooling and Heating Sales Ltd, the Essex based indoor air quality solutions and air conditioning specialists, is currently the exclusive UK distributor for the new Hi-Velocity- HE System, which has an inverter indoor fan motor and is delivering new levels of comfort and cost efficiency to the residential and commercial air conditioning market, as yet unseen in the UK’s HVAC industry.The system works by delivering air via a series of mini ducts, which can be discreetly positioned wherever suitable, resulting in a draught free and even temperature finish ( +/- 1 deg C floor to ceiling, wall to wall). The enhanced system also has a programmed EPC motor and controller and achieves operating efficiencies of up to 78% (an increase of 20% over the conventional PSC motor) which no other small duct high velocity (SDHV) manufacturer has previously achieved. With its proven reliability using a three-phase induction motor and near zero torque pulsation, for an even quieter operation, the Hi-Velocity-HE System brings proven industrial technology to the residential and commercial market. The patented ‘Mass Flow’ technology provides a constant CFM throughout the programming range and environmental conditions no longer dictate how the system runs as a new controller adjusts the voltage and frequency to maintain its programmed CFM.

The new system is field programmable up to 30kW of heating and 5 to 17kW of cooling. The Hi-Velocity system can be connected to a number of heat / cool sources, boilers, heat pump water chillers, ground source heat pump and air conditioning condensing units. Each programmed tonnage having up to five adjustments for on-site fine-tuning. The motor and controller are separate units and require no recalibration, making field replacements simple and cost effective.

By using air to water heat pump chillers (up to 11.7kW inverter on single phase supply), both heating and cooling can be achieved without the need for using refrigerant gases. The Hi Velocity system was well received at the recent RAC exhibition in the NEC. Cooling and Heating Sales was set up five years ago to offer bespoke solutions to a range of indoor air quality requirements. Building on 18 years years experience in the industry, Joe Flanagan has since developed an impressive and highly skilled team that can provide independent and unbiased solutions to a range of projects requiring heating, cooling or general air management.

Commenting on the new system Flanagan said “It is great to be leading the way with the introduction and distribution of this new system. We see this as the perfect solution for a whole range of domestic and commercial environments whether it is for heating, cooling, ventilation, heat recovery or air cleaning.

For further information contact Cooling and Heating Sales Ltd on 0870 2407629 or visit the website at www.coolingandheating.info

SPECIFICATION

For

“Hi-Velocity” Heating and Cooling

To

Ground and First Floors

Section 1: Design Conditions

Section 2: General Description

Section 3: Equipment & Installation Specification

Section 4: Exclusions
Conditions of Sale
Delivery

Section 5: Drawing Schedule

Prepared by: Charles R Stark, MCIBS January 9 2008

On behalf of: Cooling & Heating Sales Ltd

Unit No 1, Wolves Farm

Wyatt’s Green, Doddinghurst

Essex. CM15 0QE

Tel: 0870 240 7629 Fax: 01277 356120

www.coolingandheating.info Email: sales@coolingandheating.info

Section 1

Design Conditions

Ambient Conditions

Maximum Summer Conditions

28ºC db18ºC wb

Minimum Winter Conditions

–3ºC Saturated

Room Conditions

Internal Design Temperature

23ºC ± 1 deg C (Summer)

at the point of control:

21ºC ± 1 deg C (Winter)

Cooling and Heating CapacitiesSystem 1

Quick Choice Fiction (G13)

Cooling 14.0 kW total

Heating 20.0 kW

System 2

Adults Library (F2)

Cooling 20.0 kW total

Heating 30.0 kW

System 3

Adult Library/Learning Resources (F8)

Cooling 14.0 kW total

Heating 20.0 kW

System 4

Adult Library (F10)

*Heating 20.0 kW

*Heating only with provision for retrofit, total cooling 14.0 kW.

Minimum number of HE type supply air outlets per system would be:-

System 1 — 24

System 2 — 23

System 3 —24

System 4 —24

Section 2

General Description

We would supply deliver, install and commission 4 No. Hi-Velocity ducted systems, generally as detailed in manufacturer’s literature. Each system would comprise a high velocity high pressure air handling unit incorporating a direct expansion refrigerant based heating/cooling coil, low pressure hot water heating coil fan and air filter. The air would be discharged via insulated and vapour sealed ductwork and 80 mm dia. flexible attenuators 3.5 m long, to ceiling, wall or floor outlets.

The outlets would discharge high velocity air to the treated areas. The high velocity creates a low pressure column which induces the room air to provide a virtually draft free system with minimal temperature gradient.The installation would be to Hi-Velocitiy’s recommended specification and standard. The refrigeration and electrical installation would be in accordance with Section 3 “Installation Specification”.

Each system would comprise a Hi-Velocity attenuated flexible return air duct to the plenum chamber on the air handling unit, where fresh air would be introduced. The mixed air would then be filtered heated or cooled at the dictates of a remote temperature sensor and discharged via insulated and vapour sealed Hi-Velocity “snap lock” ductwork to the HE 3.5 metre attenuators and discharged at high velocity via the supply valves. In addition the system serving the Adult Library would incorporate the existing attenuator.

In the Adult Library/Learning resources (F8), system reference 3, two separate temperature controlled zones would be available via on/off motorised dampers.

Systems 1, 2 and 3 would serve by a heat pump type inverter outdoor unit as manufactured by Messrs Diakin via a purpose made interface panel designed specifically for use with the Hi-Velocity system.

Interconnecting refrigerants and electrical services between the direct expansion coil and the outdoor unit would be in accordance with the equipment and installation specification—Section 3.

The systems would be installed generally as indicated on the drawings as scheduled.

Section 3

Installation Specification

Hi-Velocity Ventilation

General

All components for the air distribution system would be suitable for the air pressures and flow, with joints, supports and hangers in accordance with Hi-Velocity install literature. Operatives installing the systems would have attended a training course supervised by Cooling and Heating Sales Ltd.

Air Handling Unit

Each air handling unit would be Hi-Velocity model HE 101 capable of providing a maximum air flow of 519 l/sec @ 373 pa (external pressure) adjusted to match the specified capacities.

Distribution Ductwork

The distribution ductwork would be manufactured from galvanised sheet steel of the “Snap lock” type insulated and vapour sealed with patented Hi-Velocity insulation.

Outlets

Supply air outlets would be of the standard finish Hi-Velocity type HE either floor, wall, or ceiling mounted. The outlets would incorporate roughing boot and on/off air supply damper.

Attenuators

Supply air attenuators would be of the Hi-Velocity HE type 3.5 metres in length insulated and vapour sealed and constructed to a maximum rated pressure of 2.5 K pa.The existing attenuator serving the Adult Library (F8) would be reused on the return air to the Hi-Velocity unit serving the area. The remaining areas would incorporate a flexible Hi-Velocity attenuators.

Controls

An Aprileair controller together with sensors would be supplied and installed for each system/zone. The controller would provide temperature control and incorporate a time switch.

Refrigeration System

Refrigerant Pipe work

All components used for refrigerant pipe work would be suitable for the refrigerant and lubricant concerned, and would be kept free of all contaminants.

Setting Out

Refrigerant pipe work would be run in concealed locations within the building, where possible. The refrigerant pipe work would be neatly clipped to cable tray or on approved clip hanging installation system.Refrigerant pipe work would be so arranged as to avoid gas locking in liquid lines and liquid collection in gas lines. The pipe work would also be arranged so that any oil entrained in the refrigerant and not removed by any separator, will be carried through the system and back to the compressor.

Pipes

Refrigerant pipe work would be run in copper and would be of a refrigeration quality to BS 2871 Part 2.All copper tube would be fully degreased and cleaned internally.

Pipe Joints

Joints in copper pipes would be brazed. Brazing would be carried out in accordance with the HVCA Code of Practice—”Brazing and Bronze Welding of Copper Pipe and Sheet”. Whilst brazing joints, the inside of the pipe would be flooded with nitrogen to prevent the formation of oxides.Compression joints and screwed joints would not be used in refrigerant pipe work except at equipment accessories.

Pressure Testing

On completion and before operation, every refrigerant system would be proved tight by pressure testing.

Refrigerant—R410A

Leak tracing would be carried out only with dry nitrogen.

Charging

After testing and before charging, every refrigerant system would be thoroughly evacuated and dehydrated using a purpose-designed vacuum pump, with all valves in the refrigerant pipe work open.The charging line would be thoroughly cleaned and the correct quantity (by weight) of clean, dry refrigerant would be admitted.

Insulation

Gas and liquid line pipe work would be insulated using closed cell polymeric insulation such as Insultube by NMC Kenmore Ltd. or equivalent, fitted fully in accordance with the manufactures recommendations. The insulation would be class “O” fire rated.

Drain Lines

Condensate drain lines from the Hi-Velocity units would terminate in tundishes made available by others.

Electrical

Wiring

All the inter-connecting electrical wiring between the air cooled outdoor units, evaporators and automatic controls of the air conditioning systems would be carried out in accordance with the latest edition of the I.E.E. Wiring Regulations, and relevant British Standard specification or Codes of Practice, except where specified to the contrary.

The electrical supplies scheduled below would be required terminating at isolators adjacent to the units:-

1 No. 20amp 415v 50hz 3 phase Outdoor unit

3 No. 32amp 230v 50hz 1 phase Outdoor units

4 No. 16amp 230v 50hz 1 phase Air handling units

Section 4

Warranty

The entire installation would be covered by a 12 months warranty including parts and labour. The foregoing is subject to proper care without misuse and the equipment being under a scheduled maintenance agreement.

Exclusions

The following items are excluded:

1. Removal of existing equipment.
2. Negotiations associated with planning approval and landlord’s permission and English Heritage where applicable.
3. Provision of scaffold or hoisting equipment.
4. Builders work, structure alteration and redecoration.
5. Mains electrical supplies.

Delivery

5/6 weeks from receipt of official order to proceed with full working drawings.

The installation period would be 30 working days (one pair of operatives).

Hi-Velocity Mini Duct Systems
As an alternative to traditional Underfloor Heating, Warm Air Heating or Central Heating Systems
Hi Velocity mini duct systems offer the perfect solution for Indoor Air Quality in the home and office in london or anywhere in the UK, as the new choice for traditional underfloor heating, warm air heating or central heating systems; click here to see the Hi Velocity mini duct systems product details.

The vast range of applications includes domestic properties, offices, conference facilities, professional training facilities, factories and commercial kitchens. retail outlets, server rooms, hotels, laboratories, pubs and clubs, restaurants, doctor’s surgery, hospitals, leisure centres. art studios, schools and colleges. residential care homes.

Mini Duct Systems are well suited for industrial commercial or domestic markets, the air handler can be connected to existing boilers or inverter driven Heat Pump condensing units and chilled water heat pump or ground source heat pumps. By using the Condensing units the system can now deliver cooling and heating, cooling can either be fitted at the time of initial installation or as a retrofit at a later date The running costs of the heat pump Condensing Units are far more cost effective compared with traditional gas boilers and in many cases this is the discreet manner.

The Hi Velocity Systems utilizes a modular Air Handler connected to a series of small flexible ducts, eliminating the need for either traditional radiators or under floor heating and systems. The most important benefit of using mini duct heating and cooling system is the discrete way the heated air is delivered giving even temperatures without draughts.

Additional to heating and cooling, up to 100% fresh air ventilation can also be introduced into the air handler either directly or via a heat recovery system. A great choice instead of having to use the Underfloor heating, warm air heating or central heating systems, whether you are based in london or any where in the UK.

www.coolingandheating.info

Cooling and Heating Sales are proud to offer a large range of Air Conditioning systems, underfloor heating, mini duct systems, warm air and central heating products that are energy efficient with the lowest running costs available for:

Offices, hotels, retail or residential for London & the UK.

Our extensive range of equipment coupled with our years of experience, means that we can supply the right equipment for each application.- a square pegs for square holes policy.Our range includes Traditional Split Heat pump air conditioning systems, as well as VRF Heat Recovery and Chilled Water Systems from Hitachi, Acson (part of the Daikin group) Fujitsu & LG. Instead of having underfloor heating, warm air or central heating consider one of our energy saving alternatives. We also offer Air Handling equipment from Carrier & BBS.

visit our website

www.coolingandheating.info

CHS are currently working on a large Hotel project in Hounslow installing over 100 Hitachi Heat Pump VRF VFV fancoils with a full supply and extract systems.

The Client working on behalf of the Days Inn group plans to open the hotel mid March 2008

The ground floor is having Hi-Velocity mini duct systems installed throughout.

Hitachi Inverter Heat pump VRF Systems meet government ECA Scheme requirements

For more information, click here

CENTRAL HEATING SYSTEMS

A normal wet heating system delivers heated water around a loop of insulated copper pipework connected to delivery points, ie the radiators. Each of the radiators is made up of fins of metal that of course heat up when hot water is passed through them. How do these actually heat up a typical room? Using convection is the simplest answer Convection is why fire travels much faster upward than to the sides so if you are looking to heat the roofspace then radiators are the perfect choice, if not read on…. In other words the radiators only heat the space directly around them as they have no way of actually drawing the cooler air from around the room into path of the radiators except for the convection effect, any air movement within space caused by people moving around or separate ventilation systems will help to distribute the air, generally though hot spots will occur with the temperature around the radiators being much higher than areas further away particulally at low level .

Typical Scenario

Imagine this scenario in a typical office space of say 10m x 6m in size with a 2.5m ceiling. You would expect to see possibly 4 radiators distributing the heat, positioned at 1/3 and 2/3 intervals along both of the longer walls. Now imagine the air in the middle of this room, how long does it take for this air to change temperature? If there is no air movement in the room then the time taken to heat this small portion of the space would be quite considerable. Radiators rely on other sources to move the air within the space in order to achieve an even temperature throughout.

Problem: Anyone sitting near a radiator will get too hot.

TRADITIONAL COOLING SYSTEMS

The “Norm” for the last 25 years or so has been the use of Ceiling Cassette or Wall mounted split systems . In our typical 10m x 6m Space a cooling requirement of some 7.00-10.00 kW’s would be necessary to reduce the room temperature sufficently in order give a comfortable environment. The cheapest way would be a have a single unit positioned centrally within the space or possibly a pair of units each delivering half the required duty.

How do these systems actually work?

All traditional Air Conditioning fancoils have an intake point and a exhaust point with a fan motor built in and used to create the air movement, air within our space is drawn towards the fancoil and taken in at the intake point where it is pulled across a refridgerant coil and then blown out at a reduced temperature.

Problem : If any occupant in the room is unlucky enough to be sitting in the path of the cold air being discharged they will either turn the system off or complain.

SOLUTIONS:

How does the Hi-Velocity System overcome the common problems associated with traditional heating and cooling systems.

In Simple terms

If you consider a wall mounted unit or a radiator as a single point of distribution for the heating or the cooling, then consider that a similar sized 10.00kW’s Hi-Velocity System will have up to 45 points of distribution. The result of this multipoint distribution is even temperatures throughout and of course no draughts. The occupants feel comfortable at all times and never really know how the temperature in the room is being achieved.

Other Benefits of the Hi-Velocity System

Hi-Velocity has the ability to not only control the temperature of the room it has another major benefit, the abilty to introduce fresh air…. Even if your room is at the right temperature, if the air is stale the occupants will feel uncomfortable. To take this a stage further Hi-Velocity systems manufacture an air purifier that offers the occupant TOTAL INDOOR AIR QUALITY.With No draughtsWith No hot or cold spots

How much value do you put on working/living in a comfortable environment ?

Can Hi-Velocity be installed anywhere?

Is Hi-Velocity expensive compared to traditional systems? Are High-Velocity systems noisy? Can Hi-Velocity systems deliver just heating if we don’t need cooling? Can I see a Hi-Velocity system working?

The answers to these questions and many others can be found at our website www.coolingandheating.info

We are holding ½ day seminars at the Canadian High Commission in Central London February/March and will be happy to send you a free invitation.