Mega Lift for a Mega Chiller

Saturday 20th September 2014

St Mary's Hospital in Paddington (part of Imperial College NHS Trust) awarded the contract to replace one of its failed rooftop water chillers to JC Watson Refrigeration.

The buildings chilled water circuit was previously supplied by two Uniflair chillers operating in tandem. Both chillers had reached the end of their economic life, so JCWR was tasked with getting one chiller fully operational, by utilising working parts from both, then removing the donar chiller from site and replacing with a new Daikin chiller capable of running the entire building duty on its own. The remaining, operational Uniflair would then be utilised in times of excessive load or for future expansion of the chilled water network.

The site is accesible from one side only as it abounds the Grand union Canal. Access for the crane was severely restricted by the presence of London Underground tunnels and the limitations on vehicle axle loadings for vehicles transiting over, or along, the routes of the tunnels.

The size of crane required to accomodate the reach (85M) and lift (11 storeys) for this large chiller (8.8 tons) meant, under normal circumstances, that permission would be refused, due to the mobile crane axle weight being significantly over the maximum permissable set by London Undersground.

JCWR devised a unique solution to the problem, in that the crane was stripped down to its bare component parts, transported to site on articulated lorries and reassembled on site. This negated the transport weight limitations for the roads adjoining the Hospital. At the end of the lift, the crane was disassembled once more for transportation.

All of the above arrangements, including structural engineering calculations and liason with LUGL and the Metropolitan Police (Traffic) were undertaken on behalf of the Trust by JC Watson Refrigeration. This included the design and implementation of a Traffic Management plan for the Trust, as Blue light Ambulances had to be re-routed during the course of the lift. significant liason with London Ambulance was also undertaken including walkie talkie marshalling of the local road netwrk to ensure all emergency vehicles were correctly directed.

The installation of the chiller included mains electrical power, BMS and 8" chilled water flow and return connections on the roof. All works were successfully handled as a turnkey project on behalf of the Trust by JC Watson Refrigerations dedicated Contracts Team.

Some of our clients

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  • Buying Solutions
  • Imperial College NHS Trust
  • NHS Property Services
  • BAE Systems
  • Met Police
  • St George's Healthcare NHS Trust
  • Thames Water
  • Gravetye Manor
  • Fuller Smith & Turner
  • Barbican Centre
  • HWM Aston Martin
  • Glaxo Smithkline
  • Sony DADC
  • Toni & Guy Hair Salons
  • Which? Trusted Trader
  • Royal London Homoeopathic Hospital
  • Avis Rent a Car
  • South Essex Partnership
  • Brentwood Community Hospital
  • Queens Club
  • Kingston Hospital
  • The Royal British Legion
  • Age Concern
  • St Andrews Healthcare
  • Burger King
  • Cancer Centre London
  • Royal Free Tavistock Centre
  • East Barnett School
  • Greene King
  • London Bioscience Innovation Centre
  • Mitie
  • Parkside Hospital
  • Royal Free & University Medical College
  • Cherwell District Council
  • Royal Hospital for Neuro-disability
  • Vitesse PLC
  • Crawley Hospital
  • Adams Environmental
  • Age Concern
  • Arkley Golf Club
  • Army and Navy Club
  • Ashford and St Peters Hospitals
  • Aspen Healthcare
  • Association of MBA's
  • Barbican Centre
  • Barnet & Chase Farm Hospital NHS Trust
  • Barts & The London Hospitals NHS Trust
  • Bat Conservation Trust
  • Beale and Co
  • Belushis
  • Bishop Thomas Grant School
  • Blake Hall Sports Club
  • BMI Healthcare
  • Boyce Hill Golf and Country Club
  • Brazilian Embassy
  • Brentford Lodge
  • Brentwood Community Hospital
  • Brighton College
  • Royal British Legion
  • Brook Street
  • Brookwood Club
  • Brymor Construction
  • BUPA Cromwell Hospital
  • Burger King
  • Camberwell College of Arts
  • Cambridge University Hospital
  • Canute Haulage
  • Cass Business School
  • Cassel Hospital
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  • Central North West London NHS Trust
  • Chambers of Rock Tancey
  • Chelmsford Borough Council
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  • Chioce Designwear
  • City University School of Law
  • Cobra Insurance Brokers
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  • Enfield Arts
  • Enfield Golf Club
  • Epsom and St Hellier NHS Trust
  • Euromoney
  • Felixstowe Rugby Club
  • Finchley Manor
  • Fleet Leisure
  • Frimley Park Hospital NHS Trust
  • Greene King
  • Hammersmith Breast Screening
  • Harley Street Clinic
  • Hatfield Town Council
  • HCA International
  • Henry J Beans Restaurants
  • Highgate Hospital
  • Holly House Hospital
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  • Abbey Community Centre
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  • NHS Camden
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  • St Lukes Hospice
  • London South Bank University
  • Mechelec Building SVCS
  • Upminster GC
  • Vitesse
  • UEL
  • Parkside Hosp
  • St Richards
  • LB Hounslow
  • Hospital for Neuro Disability
  • West Herts NHS Trust
  • WLMH
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  • Regents College
  • Southend PCT
  • Newham University Hosp
  • Circle Healthcare
  • Lister Hosp
  • Marshall Aerospace
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  • Purley Hospital
  • Whittington
  • St Vincents Nursing Home
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  • Winchester Hosp
  • Mitie
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  • NHS Southern Health
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  • LB Lambeth
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  • Newland Construction
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  • City Lifting
  • Albany School
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  • Worldwide Clinical Trials
  • Basildon Council
  • Wentworth Golf Club