HP DXE Heat Pump Air Curtain

HP DXEheat pump air curtainin cooperation with

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As a market leading manufacturer of high quality aircurtain solutions, Thermoscreens are activelyresponding to environmental issues. The need to reduceenergy consumption and CO2 emissions is beingaddressed by new innovation and revolutionary new aircurtain solutions.Thermoscreens produce a comprehensive range of aircurtains - heated, ambient and cold store for surfacemounted, recessed and vertical applications.Thermoscreens air curtains provide energy efficientsolutions and comfort for retail, commercial,architectural and industrial sector.Known the world over, Mitsubishi is a trusted globalleader associated with a variety of products and services.Founded in 1921, the company known today as MitsubishiElectric, quickly rose to the forefront of the heating andcooling industry, a position they still enjoy today.As a leading manufacturer of energy efficient heat pumpsystems, they constantly strive to meet and exceed theincreasing demands placed on the industry. The drive toreduce energy consumption and the impact its use hason the environment is crucial and increasingly importantto us all. Energy efficiency, has long driven MitsubishiElectric to spend millions of pounds and huge amountsof resource on researching and developing the solutionsof the future.Underpinning everything is the commitment to productquality, reliability, performance and delivery. This isevidenced by accreditation to the Quality ManagementSystems BS EN ISO9001:2008.Thermoscreens believes in sustainability and to this endadhere strictly to the Environmental ManagementSystems BS EN ISO14001:2004. All products aredesigned with energy efficiency in mind and with theintroduction of Ecopower Air technology end users cannow benefit from energy saving and climate enhancinginnovation.Responsible ManufacturingMitsubishi Electric boasts an explicit commitment tosustainable business practices such as energy andresource efficiency, minimising ecological impacts oftheir products and reducing greenhouse gas emissions.They are the only manufacturer in the industryrecognised by Portfolio 21 as one of the top fivecompanies in the world for their sustainableenvironmental policy. All of their factories are also ISO14001 registered, the international standard thatspecifies a process for controlling and improving acompany's environmental performance and with theadvent of the Green Gateway Initiative, they strive toconstantly promote best practice.3.

ECOPOWER AIREcopower Air technology increases the energyeffectiveness and energy saving of the HP DXE HeatPump air curtain. The new technology offers superiorclimate separation across a doorway by way of enhancedair stream projection and air stream uniformity.Air velocity projection and air velocity uniformity are twoof the most important attributes to describe the air streamdischarging from an air curtain used to protect anopening.Good air velocity projection means maintaining a high airvelocity within the air stream at a long distance from thedischarge nozzle of the air curtain. Good air velocityuniformity is having a consistent air velocity all along thewhole length of the air curtain.AIR CURTAINAIR STREAMair stream is uniformacross whole lengthof the air curtainDOORWAYOPENINGair stream projectsright across to fullycover the openingIf the air velocity projection and air velocity uniformity ofthe air curtain is adequate, see Figure 1, it will reach rightacross and cover an opening, thereby, reducing theingress of air and/or condition the air that may enter theopening.Figure 1AIR CURTAINAs shown in Figure 2, if the air velocityprojection is inadequate the portion of theopening furthest from the air curtain isunprotected.AIR STREAMDOORWAYOPENINGair stream onlyprojects to hereleaving part ofopeningunprotectedFigure 2If the air velocity uniformity is poor some partsof the air stream will protect the opening whilstother parts will not, leaving some areas of theopening unprotected, see Figure 3.AIR CURTAINNon-uniform air streamdoes not cover dooropening in some areasAIR STREAMDOORWAYOPENINGFigure 34.

ECOPOWER AIRThe new HP DXE Heat Pump air curtain is equipped with Ecopower Air technology which enhances the air velocityprojection, air velocity uniformity and energy effectiveness. These enhancements are a direct result of the air plenum,converging nozzle and active cellular grille (Patent Pending).1. Air Plenum2. ConvergingNozzle3. Active CellularOutlet GrilleCentrifugalFanis a pressure chamber into which the air first flows. Its presence and shape generates ‘Flow Static Pressure’ whichresults in the air being evenly distributed along the length and width of the air curtain discharge area thus eliminatinglow velocity zones or dead zones.1. Air Plenum:The plenum transforms into a ‘Converging Nozzle’, (air shaft) creating the Venturi Effect. By moving the air froma larger to smaller enclosure, this creates higher air velocities which results in increased air stream projection.This increased air projection provides enhanced air barrier.2. Converging NozzleThe back pressure created by the cellular grille contributes to airflow uniformity. The cellular grille can be angledto achieve the desired directional airflow trajectory to suit the application, enhancing energy effectiveness. The airis guided through each cell of the active grille providing constant coverage.3. Active Cellular GrilleAir velocity uniformity HP DXE NTHP DXE NT 3rd prototypeGraph derived from testing in accordance with newly released air curtain standard ISO 27327-15.

BENEFITS OF ECOPOWER AIREfficient air barrierSuperior air stream projectionSuperior air velocity uniformityComplete climate separation across doorwayReduced energy consumptionActive cellular grille- Creates back pressure- Cellular pockets concentrate air trajectoryAir velocity uniformity- Eliminates ‘dead’ zonesAir velocity projection- Maximum barrier effect6.

HP DXE - HEAT PUMP AIR CURTAINMain features:Available as surface mounted and recessed modelsLinear Expansion Valves (LEV) fitted inside City MultiunitsPlug and Play system for Mr Slim and City Multi unitswith all components mounted inside the casingWeather Compensation Energy Saving Controlsupplied with Mr SlimIncorporates Ecopower Air technologyMaximum mounting height 3.8mAll units are supplied with an integral condensatedrain tray to enable the air curtain to be used incooling mode during warm weatherMaster/Slave on City Multi unitsImproved access for servicing and maintenanceDefrost cycle auxiliary heater disabled as standard,can be easily enabled during site commissioning7.

ENERGY SAVING WEATHER COMPENSATION CONTROLThe HP DXE Mr Slim Heat Pump air curtain features the Mitsubishi Electric Weather Compensation Control (HEATINGECO). The controller achieves significant energy saving and carbon savings as the heat pump compressorautomatically adjusts for energy requirement. The weather compensation control can reduce the payback period towell under 2 years.The weather compensation control measures the outside air temperature by using an air sensor on the MitsubishiElectric outdoor unit and automatically adjusts the temperature of the air curtain discharge air. It will select a warmerdischarge air stream if it is cold outside and a cooler discharge air stream if it is not so cold outside, as the dischargeair does not need to be as warm.*If the outdoor temperature is 0 C, the discharge air temperature from the air curtain will be 40 C maximum. If theoutdoor temperature is not cold the air curtain discharge air temperature is reduced. If the outdoor temperature isabove 15 C, the air curtain discharge air is not heated and the compressor is off.This means the heat pump system uses significantly less energy and the annual seasonal COP is higher than anormal heat pump air curtain.Figure 1 shows a typical heating curve set up for weather compensation control, temperature points 1, 2, 3 and 4 areselected during commissioning.402Heated Air CurtainFigure 1Weather Compensation ControlTypical heating curveAir Curtain30Discharge AirTemperature4( C)20Ambient Air Curtain1-50351015Outdoor Air Temperature ( C)Footnote:* 1 Outdoor Air Temperature 0 C, 2 the Discharge Air Temperature 40 C* 3 Outdoor Air Temperature 15 C, 4 the Discharge Air Temperature 20 C8.20

TECHNICAL SPECIFICATIONS - MR SLIMMr Slim HP DXE Heat Pump Air Curtains - Surface mensionsEffectiveElectricLxDxHWidth ofSupply(mm)Airstream (m) (50Hz)**1300 x468 x 3061.102350 x468 x 3062.151825 x468 x 3062350 x468 x 3061.632.15230V 1P N EMax. DXHeat Out.(kW) 8.3P71 index230V 13.21P N E P125 index230V 15.71P N E P140 index230V 15.71P N E P140 indexElectricalLoading(A)ISO 27327Uniformityat outlet1.2 (10.9)*92%1.4 (13.0)*90%0.8 (6.5)*1.4 (13.0)*90%90%AirVolume(m³/h)Hi - 1310Me - 1170Lo - 970Hi - 2070Me - 1800Lo - 1450Hi - 2590Me - 2340Lo - 1930Hi - 2590Me - 2340Lo - 1930Weight(kg)46678484NoisedB(A)@3mHi - 58Me - 55Lo - 50Hi - 58Me - 54Lo - 49Hi - 58Me - 55Lo - 50Hi - 58Me - 55Lo - 50MaximumMountingHeight (m)3.83.83.83.8For use with a Mitsubishi Electric R410A Mr Slim outdoor unit. Maximum DX Heating Output at 7/6 C outdoor condition, 20 C indoor temp.*(Amps per phase) for a 400V 3P N E local electrical supply if defrost auxiliary heater is enabled during commissioning **then need a 400V 3P N E local electrical supply for the whole unit instead of the 230V 1P N E electrical supply.Mr Slim HP R DXE Heat Pump Air Curtains - DXEDimensionsEffectiveElectricLxDxHWidth ofSupply(mm)Airstream (m) (50Hz)**1250 x485 x 3541.181750 x485 x 3541.682340 x485 x 3542.272340 x485 x 3542.27230V 1P N EMax. DXHeat Out.(kW) 8.3P71 index230V 13.21P N E P125 index15.7230V 1P N E P140 index15.7230V 1P N E P140 indexElectricalLoading(A)ISO 27327Uniformityat outlet1.2 (10.9)*92%1.4 (13.0)*90%0.8 (6.5)*1.4 (13.0)*90%90%For use with a Mitsubishi Electric R410A Mr Slim outdoor unit. Maximum DX Heating Output at 7/6 C outdoor condition, 20 C indoor temp.*(Amps per phase) for a 400V 3P N E local electrical supply if defrost auxiliary heater is enabled during commissioning **then need a 400V 3P N E local electrical supply for the whole unit instead of the 230V 1P N E electrical supply.AirVolume(m³/h)Hi - 1310Me - 1170Lo - 970Hi - 2070Me - 1800Lo - 1450Hi - 2590Me - 2340Lo - 1930Hi - 2590Me - 2340Lo - 1930Weight(kg)52759393NoisedB(A)@3mHi - 58Me - 55Lo - 50Hi - 58Me - 54Lo - 49Hi - 58Me - 55Lo - 50Hi - 58Me - 55Lo - 50MaximumMountingHeight (m)3.83.83.83.89.