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01634 673700 info@hadene.co.uk

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Heating

Hadene are one of the largest independent commercial heating specialists working within Kent and the South East.

We are able to install and service a wide variety of heating systems, whether it be an air high-level factory unit or a commercial boiler.

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Building

Hadene Building Services provide ‘Total Building Services’, including a planned maintenance service along with a call out service.

We manage commercial and industrial premises with our own staff on-site.

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Air Conditioning

Hadene offer the installation and servicing of many types of air conditioning and ventilation systems, in Kent and the South East, by some of the most experienced engineers in the industry.

We are fully compliant with the current regulations and all of our engineers are F Gas certified.

The start of the job at Bromley church

Installation & Maintenance

Hadene Building Services offer a wide range of engineering installation and maintenance services in Kent and the South East.

All of our engineers working on gas installations are fully qualified with the relevant ACS standards.

OUR - LATEST PROJECTS

Below are details of our latest projects.
These include heating, air conditioning, installation and maintenance, as well as building works.

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British Gypsum

Air Conditioning, Building Services, Heating, Installation & Maintenance
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British Standards Institute

Heating, Installation & Maintenance
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Hayes Primary School

Air Conditioning, Building Services, Heating, Installation & Maintenance
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Millennium Bridge House

Building Services, Heating, Installation & Maintenance
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Hazlitt Theatre

Building Services, Heating, Installation & Maintenance
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Q Hotels

Building Services, Heating, Installation & Maintenance

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Who we are

Hadene Building Services are a KCC approved contractor (AC17465E). We specialise in heating, air conditioning and building services throughout Kent and the South East, within the industrial and commercial sector.

Founded in 1986, our expertise within the industry is continuing to grow, which has enabled us to form a specialist fully trained mobile engineer base. This allows us to cater immediately to emergency call-outs 24 hours a day 365 days a year. All of our engineers are both Gas Safe and Oftec registered in order to guarantee you exceptional work.

We can arrange site visits to establish and discuss your requirements. This allows us to deal with both the installation and maintenance of many types of heating and air conditioning systems. In addition to this speciality, Hadene also offer ‘total building services’, tailoring a solution to any property management issues you may have.

Despite the rapid growth of Hadene over the last few years, we have retained a very strong association with all our customers. This ensures that we continue to provide a highly responsive, cost effective, friendly, and above all quality service.

Heating

Hadene are one of the largest independent commercial heating specialists working within Kent and the South East. We are able to install and service a wide variety of heating systems, whether it be an air high-level factory unit or a commercial boiler. We are committed to installing safe, cost effective and environmentally friendly heating systems.

Air Conditioning

Hadene offers the installation and servicing of many types of air conditioning and ventilation systems, in Kent and the South East, by some of the most experienced engineers in the industry. We are not tied to a particular manufacturer of air conditioning systems and for this reason are able to provide the most appropriate solution for you. We are fully compliant with the current regulations of the mandatory requirements under the Energy Performance of Building Regulations 2007, and all of our engineers are F Gas certified.

Building Services

Hadene Building Services provide ‘Total Building Services’, including a planned maintenance service along with a call out service. We manage commercial and industrial premises with our own staff on-site.

Installation & Maintenance

Hadene Building Services offer a wide range of engineering installation and maintenance services in Kent and the South East.

Do you work with domestic heating?

At present we only look after commercial heating.

Do you work with LPG and Oil heating?

Yes, we work with commercial LPG and Oil heating. However, we do not work with waste oil.

What areas do you cover?

We currently work in Kent, Sussex, Essex and Surrey.

Clients Testimonials

  • Dauntons Chartered Surveyors and Estate Agents

    Maintenance and Engineering

    Hadene are the appointed contractors to look after the M and E side of 406/408 Strand London WC2. The building extends across 15000 sq. ft of offices and they have been providing an efficient, friendly and competitive service since we commenced management of this building in December, 1993

  • Maidstone Borough Council

    Maintenance

    Hadene Building Services have been associated with corporate planned and reactive maintenance for Maidstone Borough Council for several years and have provided an efficient, value for money service, using helpful staff at all levels of their organisation.

Latest News

Welcome to the freshly redesigned Hadene website. We believe the new site gives us the opportunity to showcase our resources and is fully responsive to cater for mobile and tablet use without you having to do a thing.

TECHNICAL BULLETIN
LEAK CHECKING:
DIRECT OR INDIRECT METHODS
1 OBJECTIVE

The objective of this bulletin is to clarify for members the definitions and appropriate leak checking method for stationary RACHP (Refrigeration, Air Conditioning and Heat Pump) systems under the F gas Regulation (EC517/2014).

2 REGULATION EC517/2014
This is the regulation commonly referred to as “The F gas Regulation” as reviewed and adopted in 2014.
The implementation of an EU regulation is confirmed by a series of “implementing acts” or “implementing regulations” each covering different aspects of implementation such as training and certification requirements, determination of quota levels, or, in the case of leakage checking requirements, EC1516/2007 which establishes “standard leakage checking requirements for SRACHP equipment”.

2.1 IMPLEMENTING REGULATION (EC) 1516/2007
This implementing regulation relates to the original F gas Regulation EC842/2006. At the time of this Technical Bulletin’s publication we still await European Commission guidance as to whether or not this regulation will be superseded with a new implementing regulation.

2.1 DEFINITIONS
The definition of “direct” methods of leak checking is one or more of the following:
• checking of circuits and components representing a risk of leakage with gas detection devices adapted to the refrigerant in the system
• application of ultraviolet (UV) detection fluid or suitable dye in the circuit
• proprietary bubble solutions/soapsuds
• using oxygen-free nitrogen (OFN) to pressurise the circuit after recovering the refrigerant gas The definition of “indirect” methods of leak checking is analysis of one or more of the following:
• pressure(s)
• temperatures
• compressor run current
• liquid level checks
• recharge volume where applicable
• visual inspection

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TECHNICAL BULLETIN
LEAK CHECKING:
DIRECT OR INDIRECT METHODS

3 CHOOSING THE CORRECT METHOD

3.1 (EC) NO.1516/2007 - ARTICLE 5
This article outlines the choice of measuring method to determine if a leak exists. The text specifies that either method is acceptable as fulfilment of your obligations to carry out leak checks but that “indirect measuring methods shall only be applied where the parameters of the equipment to be analysed, referred to in Article 7(1), give reliable information on the fluorinated greenhouse gas charge indicated in the records of the equipment and the likelihood of leakage.”
Direct checking is always acceptable.

Where indirect checks have proved unsatisfactory, for example where the analysis has raised a suspicion of leakage due to one or more of the parameters being out of sync with what would be expected, then the basic checks shall be followed up with a direct check as specified.

One or more of the following situations arising from a basic indirect check shall constitute a presumption of leakage demanding the further direct checks to be carried out:

• a fixed leak detection system indicates a leak
• the equipment produces abnormal noises or vibration
• ice build up or insufficient cooling capacity
• signs of corrosion, oil leaks or component damage – particularly at possible or likely leak points
• indication of low charge via sight glass, level indicators or other visual aids
• deviations from normal operating parameters indicated during the analysis or by readings from real time monitoring systems/software
• other signs of leakage.
3.2 REPAIRS AFTER LEAKAGE IDENTIFICATION
Where a leak is identified there is now a legal requirement for the contractor to repair “without undue delay” (EC517/2014 Art.3). This is a legal term that ensures the consideration of proportionality. Severe leakage that threatens imminent failure of performance or where the gas has a very high global warming potential (GWP) may, therefore, demand immediate action, whereas a minor leak that is of a low GWP gas or won’t be sufficient to cause major loss of performance may be left until a return visit under routine service visits occurs.
When the repair is carried out it must be made by personnel certified to undertake that activity. Prior to the repair a pump down and/or recovery shall be carried out as necessary.
The system shall then be pressure tested using oxygen free nitrogen (OFN) under standard leak testing procedures prior to evacuation, re-charge and leakage test.
A follow up check must be carried out within one month of the repair being carried out. In practical terms this may mean a further indirect check being conducted a short time after the system has been put back into use and normal operating conditions can be analysed.

Further guidance can be found at AREA F Gas Guide and (EC)1516/2007
For more information or technical assistance please contact technical@theBESA.com

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Note: this document is based on knowledge available at the time of publication and is meant for general purposes, not for reliance on in relation to specific technical or legal issues, in which case you should always seek independent advice. No responsibility of any kind for any injury, death, loss, damage or delay however caused, resulting from the use of the advice and recommendations contained herein, is accepted by the authors or others involved in its publication
(including the Building Engineering Services Association). 29/09/2016

 

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