gshp training for plumbcenter - delivered by kensa heat pumps - november 2011
DESCRIPTION
TRANSCRIPT
Expertise | Service | Quality
©Kensa Engineering Ltd 20091
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Plumbcenter
Introduction to Kensa Heat pumps
UK Manufacturers
Expertise | Service | Quality
©Kensa Engineering Ltd 20092
Introduction to Kensa
UK Manufacturer of Heat pumpsCommercial office in ExeterOver 2500 Kensa units in ServiceOver 11 years production expertiseOver 15000 Slinkies installedISO 9001 ApprovedFull MCS accreditationIndustry Award Winners 2008/2009No Immersion heaters inside
Expertise | Service | Quality
©Kensa Engineering Ltd 20093
Contents
Market & RHI Overview
How A heat pumps works
Product
Qualification
Life of a Project – Sizing A Heat pump
Installation and running costs
Specialist
Expertise | Service | Quality
©Kensa Engineering Ltd 2009
The Opportunity – Market Projections
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UK Renewable Heat Supply Curve, published in July 2009 with Renewable Energy Strategy:
– 1,220,000 GSHP installations by 2020.
Committee for Climate Change – December 2010:
– 7,000,000 heat pump installations by 2030 (1 in 4 UK homes).
Expertise | Service | Quality
©Kensa Engineering Ltd 20095
Current Position - BSRIA
Tables extracted from the BSRIA World
Renewable Report published in
November 2010
Expertise | Service | Quality
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RHI
Commercial projects 4.5p/kw/hr
Commences Jan 2012 – Heat Meter
Domestic RHI October 2012
RHI Premium Payment – £1250 Off Gas Only
May not support mains Gas Projects
No Tariff announced
No details yet on monitoring
Specialist
Expertise | Service | Quality
©Kensa Engineering Ltd 20097
The Kensa MCS Umbrella Scheme
Kensa are an accredited MCS installer and manufacture MCS accredited products.
Providing installers a FREE of charge commissioning with a Kensa Technical Support Specialist based in the Kensa
Commercial Office.
This level of support through the installation, provides the installer and the client with MCS accreditation for the installation.
Eligible for RHI and Grant Funding
Expertise | Service | Quality
©Kensa Engineering Ltd 2009
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Heat Pump Cycle
Expertise | Service | Quality
©Kensa Engineering Ltd 20099
Slinky ground arrays
Expertise | Service | Quality
©Kensa Engineering Ltd 2009
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Heat Pump Internals
Compressor
Evaporator H/XCondenser H/X
Ground Array Water Pump
Underfloor Water Pump
Pressure Gauges
Controller
Expertise | Service | Quality
©Kensa Engineering Ltd 2009
Specification of Heat Pump
All Kensa units come complete with:
Ground and load side circulation pumps within the appliance cabinet to simplify installation and reduce costs.Advanced control system to permit remote diagnostics to eliminate the need for unnecessary maintenance visits.‘Smart starts’ to spread the starting electrical current Compact design to allow installation into small spaces with pipe connections under the unit
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Expertise | Service | Quality
©Kensa Engineering Ltd 2009
Compact Range
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Expertise | Service | Quality
©Kensa Engineering Ltd 2009
Plantroom Range
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Expertise | Service | Quality
©Kensa Engineering Ltd 2009
What We Supply
Design and manufacture ground source heat pumps and accessories.
Market via network of authorised distributor and installation partners.
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Expertise | Service | Quality
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Qualification – How do we budget Price projects
• New build or Part L Compliant• Size HP on building floor area x 40w/m• Size on 100% of Heat loading• Establish Space heating UFH/Radiators• Establish DHW method• Establish land area available• Budget price project• Poorly insulated building – Will refuse to
quote
Expertise | Service | Quality
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Internal area – Ground Floor
Total Internal area = 310m2
Ground Floor - Sizing
Heat load =
310 x 40 (If New Build)
=12400W
=12.40Kw
Expertise | Service | Quality
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First Floor - Sizing
235 x 0.40 (If New Build)
= 9400 W= 9.4Kw + 12.40Kw21.80Kw + DHW
Internal area – First Floor
Total Internal area= 235 sq/m
Expertise | Service | Quality
©Kensa Engineering Ltd 200918
Pricelists
Expertise | Service | Quality
©Kensa Engineering Ltd 2009
Ideal sizing – Line 37!
SAP Report - Line 37
Heat Loss Coefficient x Temperature Rise -7°C (Min) to 21°C (Max) = 28°C rise
688.02 x 28 = 19264W
Expertise | Service | Quality
©Kensa Engineering Ltd 200920
Example Quotation
Expertise | Service | Quality
©Kensa Engineering Ltd 200921
Example Sales Order Form
Simple one page order form already filled out, to be signed and returned to Kensa Engineering.
Expertise | Service | Quality
©Kensa Engineering Ltd 200922
Project Handling – How will we work together?
Enquiry made to Plumb Center from installer
Plumb Center to obtain plans and upload to Kensa website
Kensa contacts installer directly to discuss project
Kensa quote Plumb Center with 35% discount
Plumb Center quote installer less 15 – 20%
Installer places order with Plumb Center
Plumb Center places order with Kensa
Installer deals directly with Kensa during installation and commissioning
Expertise | Service | Quality
©Kensa Engineering Ltd 2009
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UFH
Design of the UFH criticalLowest possible input temperaturePipe work installed at tighter centresFloor covering affects COPBuffer Tank – Full Control (user friendly)Programmable room thermostats E10Future proofingCooling – Potential issues
Expertise | Service | Quality
©Kensa Engineering Ltd 2009
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UFH/Radiator split
UFH screed – thermal inertia (40)Radiators on demand system (50)Screed system will be heated firstZone Control for UFH and RadiatorsInitial warm up 4/5 daysImportant – UFH needs decent ‘set back’
Radiators 50% oversized
Expertise | Service | Quality
©Kensa Engineering Ltd 2009
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DHW
Heat pump size 20KwWorks on hot water priorityCylinder 30% oversizedLarger Surface area Indirect coil requiredOrdinary cylinder coils to small Potable water 50 – flow temp 55 maximumCOP around 2.5 (5.5p/Kw)Kensa Recommend Solar and Tariff 10Thermal stores don’t work very well
Expertise | Service | Quality
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DHW Cylinders
Single or Twin Coils(Coil designed and sized for Heat Pump applications)
3kW Immersion Heater
Expansion Vessel
G3 Kit
Stainless Steel tanks guaranteed for 25 years against leaks.
Expertise | Service | Quality
©Kensa Engineering Ltd 2009
Space Heating and DHW Provided by GSHP with Underfloor Heating and Radiators
Expertise | Service | Quality
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Heat pump Location
Ecoflex to carry the heat into the house.
Expertise | Service | Quality
©Kensa Engineering Ltd 2009
Noise Issues
Keep the heat pump away from noise sensitive areas.Similar noise to an oil fired boiler or running dishwasher.Can install external to the building at the back of a garage or in a lean to.
Expertise | Service | Quality
©Kensa Engineering Ltd 200930
How would the CompetitionApproach the same project
Sized for 70% of the space heating load which is 13.5kW loadWeather Compensated3 phase after 12KwNo additional ground arrays for DHWSupply Straight ground arrays or don’t supply the whole kitHave Immersion heaters insitu to make up the shortfallWe all use the same components
Expertise | Service | Quality
©Kensa Engineering Ltd 200931
Ground Arrays
Expertise | Service | Quality
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Slinky ground arrays
Expertise | Service | Quality
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Ground array - sizing
Heat pump output 20KWEvery 10m of slinky provides 1kW of energyExample 50mtr slinky = 5Kw output (space htg)Establish number of Slinkies (4)Spaced 5mtrs apart 4 x 50 x 5 =1000sq/mSlinky Lengths 30(200M) 40(250)50(300) Sized for worst case scenario (Chalk)Buried either vertically or horizontallyInstall Slinky’s when foundations dugRe-Charging – High water table - Soak waysEstimate £500-£750 per trench
Expertise | Service | Quality
©Kensa Engineering Ltd 2009
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DHW Ground Design
Heat pump size 20Kw
400ltr Cylinder requires heating = additional
load
DHW Requires additional ground arrays coil
5 x 50 x 5mtrs apart = 1250sq/m
Additional trenching required - Additional cost
Coils lengths based on SAP methodology for
DHW demand
Expertise | Service | Quality
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Installation Costs
Trenching by ground workersNo need to roll the slinky out in the trench8/12hrs per trench to dig/backfillSand required if soil is rockyPressure testing prior to backfillingPlumber connects tails to manifold and pressures testsStraight pipe more trenches – no where to dump spoil – cannot pressure test – more cost£500 to £750 per trench to dig and backfill
Expertise | Service | Quality
©Kensa Engineering Ltd 2009
Lake systems / Pond Mats
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Expertise | Service | Quality
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Boreholes
Expertise | Service | Quality
©Kensa Engineering Ltd 2009
Ground arrays - Boreholes
Twin probe borehole ready for
TRT:
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Expertise | Service | Quality
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Borehole Sizing
Insufficient ground for slinkies.Drilling – Specialist areaNeed site survey – Land Registry20metres borehole depth = 1kWProbe and grouting from Driller£50 L/m Budget pricingDomestic applications - Costly8m separationOpen loop boreholes (potable)Thermal response testing
Expertise | Service | Quality
©Kensa Engineering Ltd 2009
Undersize the amount of pipe requiredUndersize the pipe required for DHWInstall the pipe work to close togetherInstall the pipe work to shallowUnder estimate the borehole depth
Ground arrays Do Not’s
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All of the above can cause poor performance from the heat pump causing high fuel bills,
frozen ground and cold buildings.Direct immersion heaters will take up the slack
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Manifolds
20Kw HP requires a 4/5 port manifoldEach Slinky comes with 25mtr F&R tailsManifold should be mounted verticallyInstalled externally - condensateManifolds can be installed remotelyManifolds cross valve with fill and purge pointsPressure test before back filling – best practice
Expertise | Service | Quality
©Kensa Engineering Ltd 2009
Manifolds
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Single Manifold
2 and 3 way Universal Manifolds
4 Way (and above) Manifolds (Left Handed) Header Manifolds
Expertise | Service | Quality
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Slinky Manifolds
Expertise | Service | Quality
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Oil Prices
Oil has risen by 60%+ in the last 2yrs
Expertise | Service | Quality
©Kensa Engineering Ltd 2009
LPG has risen by the same %Oil at 65p/litre and 85% efficiency equates to 7.5pkW/hrLPG at 50p/l and 85% efficiency equates to 8.2pkW/hr Oil being StolenServicing costs & response maintenanceReplacement costsTypical Oil fired Installation costs 6K
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Oil Boilers
Expertise | Service | Quality
©Kensa Engineering Ltd 2009
Existing Running cost– Oil at 65p/l Efficiency 85% = 7.5p/kWh
30,195kW x 7.5p/kWh + £150 Service Charge = £2,414.00
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Cost Savings – Example
• =£2414
Expertise | Service | Quality
©Kensa Engineering Ltd 2009
20kW heat pump £9.4KCylinder /Buffer Tank £2KInternal work £1.6KGround arrays / peripherals £4KTrench Installation £3KManifold/pressure test £1KLess Oil fired Boiler £6KTotal £15K
No Servicing Requirements – 23yr lifespan
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Slinkies Final Costing
Expertise | Service | Quality
©Kensa Engineering Ltd 2009
20kW Heat Pump £9.4KCylinder /buffer £2KInternal work £1.6KBoreholes/ peripherals £22KManifold/pressure test £1KLess Oil fired Boiler £6K
Total £30K
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Borehole Final Costing
Expertise | Service | Quality
©Kensa Engineering Ltd 2009
Heat Pump running cost- Electricity at 13p/unit- COP 3 (50) - = 4.3p/kWh
30,195kWh x 4.3p/kWh = £1298.00
Cost saving. Oil less Heat pump running cost
£2414.00 - £1298.00 = £1116
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Cost Savings – Example
Expertise | Service | Quality
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Cost Savings – Example Today
RHI Payment30,195kWh x 5.0p/kWh = £1509Paid for 23 Years.
Total Annual benefit (£1116 + £1509)
= £2625
Expertise | Service | Quality
©Kensa Engineering Ltd 2009
Annual saving = £2,625Installation Cost = £21,000ROI = 11%
Payback in 8 Years.
Boreholes increase = £36KROI = 7%Payback in 14 yearsOil boiler change = £6K +
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Return On Investment
Expertise | Service | Quality
©Kensa Engineering Ltd 2009
High Temperature Range
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Expertise | Service | Quality
©Kensa Engineering Ltd 2009
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High Temperature Price lists
Expertise | Service | Quality
©Kensa Engineering Ltd 2009
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High Temperature Units
Can produce up to 60°CDifferent refrigerant an CompressorsIdeal for Oil Retro fit MarketNeed to be careful with extg rad sizesWhole house insulation method EPC31195kW/hr/2.2 x0.13 = £1843Oil £2472-£1843 = £629RHI £1509Total Annual saving £2138
Expertise | Service | Quality
©Kensa Engineering Ltd 200955
Specialist
Reverse Cycle Cooling – no grant availableOpen Loop systemsPond mats systems (Closed loop)Internal Swimming PoolsRNLITRT TestingHigh Temperature ModelsTraining units
Expertise | Service | Quality
©Kensa Engineering Ltd 2009
RNLI
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Expertise | Service | Quality
©Kensa Engineering Ltd 200957
Installer Training
One Day Hands-On Training for installersTraining held at the manufacturing facility in TruroCourses run throughout the summer months – March to September.Ideal for the Installer prior to the first install
Expertise | Service | Quality
©Kensa Engineering Ltd 200958
Factsheets
Kensa have a number of PDF factsheets available for download from our website.
Visit www.kensaengineering.com forfurther information.
Factsheets will also be sent to you on a CD. You will receive this in the post.
Expertise | Service | Quality
©Kensa Engineering Ltd 200959
Slinkies
PDF available from the website. Short overview of slinky
installation.
Expertise | Service | Quality
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Boreholes
All of our factsheets will be provided to
you on a disk, which we will send to you
after this presentation.
Expertise | Service | Quality
©Kensa Engineering Ltd 2009
Awards
Ashden Awards‘2008 UK Business of the Year’
2009 Housing Excellence Awards‘Product of the Year’
2009 Corgi Awards ‘Green Manufacturer of the Year’
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Expertise | Service | Quality
©Kensa Engineering Ltd 2009
25kW High Temperature unitTwo Hybrid Single phase heat pumpsNew controls packageHeat MetersThe Ssssshhhooo
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New for 2012
Expertise | Service | Quality
©Kensa Engineering Ltd 2009
Niche market products Integration solutions – wood burningExperienceExpertiseDelivered the largest social housing project 300 units and growingCase HistorySpecialist – RNLIEasy to deal with
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Summary