Air Source Renewable Energy

Low Energy, Air Source, Heat Pump System About Air Handlers...

Established in 1989 and located in Salford, the company manufactures air handling units for municipal, commercial, health care and industrial use. Our 50,000 square foot purpose built factory is considered one of the most modern air handling manufacturing facilities in the United Kingdom.

The first Envirofresh Heat Pump was commissioned and installed in 1995 and the demand for it has grown from year to year. The wealth of knowledge gained by consistent improvement and research has led to the Envirofresh 70 standard range of heat pump air handling products.

Air Handlers is pro-active in understanding the ventilation, recirculation dampers for start up, fully changes to building services low energy automated control and connection to BMS control. specifications and this has led to the development of the Classvent range, specifically designed for Our team of research professionals are committed schools, colleges and university classrooms. This to developing products with sustainable energy product was the first ceiling mounted heat solutions to meet today's demands for reducing recovery unit to incorporate summer boost ventilation energy consumption. Air Source Energy Renewable

Accreditation... The Heat Pump Handling Unit won the Environmental Initiative Product of the Year.

Tested and duty certified by BSRIA - Report No. 53820/1.

2 Construction Specification...

Location

Envirofresh units can be located in plantrooms or externally to the building.

Casework

The casework of both internal and external Envirofresh units are constructed from an aluminium Pentapost frame with 50mm double skin panels. The outer skin is Plastisol plastic coated steel, the inner skin is pre-galvanised sheet steel.

Baseframe

A 100mm high baseframe is provided on all Fans Envirofresh units. Envirofresh units incorporate plug type direct driven high efficiency backward curved fans with EFF2 efficient motors suitable for inverter control. The fan/motor sets are isolated from the casework via anti-vibration isolators and a flexible connector.

Weather

For externally mounted Envirofresh units, fresh air and exhaust air louvre cowl with pent style roof are fitted also.

Coils

Condenser and evaporator coils are contained within the Envirofresh unit on slide rails for ease of removal. Standard coil construction is copper tubes and headers with aluminium fins. Air Source Energy Renewable

Casework Sound Reduction Index

Freq. Hz 63 125 250 500 1k 2k 4k 8k

Power Loss db 22.5 28 27 30 35 27.5 29 28

SRI Testing by: Acoustic Investigation and Research Organisation (AIRO). Report No. L1159 PWL = SPL + 10logS – 16.4db re 10-12 Watts

Higher Sound Reduction

Special acoustic/thermal insulators are available as a composite sandwich to offer higher SRI and thermal insulation values.

3 4 Air Source Renewable Energy temperature and rejected into the supply air. supply the into rejected and temperature high a to compressed then and refrigerant the to transferred is air the from absorbed energy The air. exhaust the from heat more extract to pump heat a use we Then wheel. rotating a with air supply the to air exhaust room the from energy the of 70% recover we First Pump RecoveryHeat and Concept... • 50% less CO2 production than a gas boiler gas a than production CO2 less 50% • consumption energy Low • costs and time installation site Reduced • ambients low at capacity heating of loss No • at available cooling and heating Room • defrosting without supply air Tempered • AHU standard over footprint in increase No • plant) external (no noise Low • factory at Pre-commissioned • source one from cooling and Heating • unit in installed controls BMS • source energy Renewable • OperationalBenefits Unit Benefits... reduced volume reduced 0°C 6°C RS I SUPPLY FRESH AIR XAS ROOMRETURN EXHAUST

Recovery Wheel

WHEEL 14°C 20°C EXHAUST only operating at part load. part at operating only compressor a in results wheel recovery 70% a with conjunction in Working temperatures. ambient variable with systems air fresh full for ideal is which 10%, to down 100% from goes modulation of range the compressor scroll digital a With cycling. avoid to compressor the from capacity the modulate to requirement a is there system pump heat air fresh full a With CompressorScroll Digital FRESH AIR etPump(Heating) Heat EVAPORATOR 6°C COMPRESSOR

WHEEL

14°C ROOM RETURN

CONDENSER

20°C Selection Data...

MODEL ENV800, ENV1400A, ENV1400B, ENV2500A, ENV2500B, ENV4000A, ENV4000B, ENV5500, ENV7000, Volume m3/s (Hi/Lo) 0.55/0.8 1.0/0.7 1.5/1.0 2.0/1.5 2.5/2.0 3.3/2.5 4/3.3 5.0/4.0 7.5/5.0 Comp cooling capacity kW (1) 10.2 12.7 19 25.47 31.7 42 51 64 95.3 Comp cooling EER (1) 4.2 4.2 3.85 4.4 4.35 4.05 4.4 4.35 4.35 Comp heating capacity (2) 5.2 6.5 9.7 13 16.25 21.45 26 32.5 48.7 Comp heating COP (2) 4.7 4.6 3.9 4.77 4.9 4.1 4.77 4.9 4.9 Supply fan motor kW 1.1 1.5 2.2 3 4 5.5 5.5 7.5 15 Extract fan motor kW 1.1 1.5 2.2 3 4 5.5 5.5 7.5 11 Unit SFP (3) 2.1/1.74 1.77/1.6 2.2/1.7 1.63/1.42 1.97/1.65 1.69/1.51 1.93/1.98 1.98/1.67 2.01/1.45 Max Running Current Amps (4) 13 18 21.6 29 37 52 54 70 102 Rec. fuse size amps 20 25 32 50 50 63 63 80 125 Length mm 3400 3500 3500 4000 4000 4600 4600 5000 5500 Width mm 1050 1310 1310 1760 1760 2060 2060 2360 2660 Height (incl. base) mm 1300 1850 1850 2200 2200 2600 2600 3000 3200 R407C refrigerant kg 6.88 8.6 12.9 17.2 21.5 28.38 34.4 43 64.5

(1) Based on 28°C/45%RH ambient, 26°C return, 20°C supply Summer : Ambient air 30°C/40%RH, 26°C return, 20°C at high volume supply (2) Based on 0°C ambient, 20.0°C/40% return, 20°C supply at Selections based on equal volumes high volume. Recovery reduced with lower extract volumes. Extract (3) Based on standard unit with external pressures of 300pa minimum volume 85% of supply supply and 250Pa extract. Includes control power. (60Pa ≈ 0.1SFP) Correction to achieve 17°C leaving air supply when cooling, 28°C/45% ambient, 26°C return = max vol x 0.75 (4) Based on 400V-3PH-50HZ For displacement systems with 30°C ambient, 30°C return Units designed capable of conditions below, at high volume: and 19°C supply, correction = max vol x 0.75 Winter: Ambient air -4°C, return air 20°C/40%RH, 20°C Correction to achieve 25°C leaving air supply when heating, supply -4°C ambient with 20°C return = max vol x 0.7

Test Report No. 53830-1

BSRIA was contacted by Air Handlers Northern The tests were conducted to determine the Ltd to test an air handling unit (AHU). The unit capacity and the energy used by the unit during consisted of a combined air supply and extract the range of conditions tested. system. The tests were conducted during March The construction of the test facility, the and April 2010. A range of tests was conducted Air Source Energy Renewable instrumentation used, the data collected, for a range of outside air conditions including analysis and the derived conclusions are summer, winter and mid-season. presented in this report. Observations and Conclusions...

A range of tests were completed on the air tests the thermal wheel was on for heat handling unit at the requested conditions of recovery from the extract air from the the client to simulate summer, mid season and simulated building. The thermal wheel was winter conditions. inactive during the two cooling tests. Tests 1 to 5 show that the unit was able to Test 6 shows that the unit can provide 0.8m3/s provide the conditioned air at the requested of conditioned air at 26°C to a building at a temperature, of 20°C, from an ambient fresh air inlet temperature of 0°c. The test was temperature of between 1°C and 30°C at a conducted to check the winter heating capacity volume flowrate of 1.0 m3/s. During the heating at maximum compressor duty.

5 6 Air Source Renewable Energy Table 2 Table 1 Table Conditions Test completed. when period test the over averaged and intervals minute 1 at recorded was data test The season. mid and winter summer, including conditions of range a simulate to client, the by requested settings the at conducted were tests The Procedure... BSRIA Test xrc a etn 3. Hz Hz 32.5 32.6 kW kW 4.91 m setting fan Extract 5.3 m 0.97 °C setting fan Supply 1.00 °C 26.2 unit supply over Cooling coil over Cooling 20.2 °C °C volume extract Air 24.2 24.5 volume supply Air temp return Air kW temp coil off Air 0.48 temp coil onto Air kW kW Bar temp air Fresh 2.72 Bar 1.20 7.0 low power % Compressor 5.2 Bar high power Compressor 36.0 Bar compressor to Power 14.0 Minutes 12.9 percentage Compressor 30.0 (gauge) High LP (gauge) Low LP (gauge) High HP 14:48:30 29-Apr-10 (gauge) Low HP test of Length test of time Start test of Date etn . 602. 0.8 1.0 1.0 20.0 1.0 20.0 26.0 20.0 1.0 20.0 20.0 1.0 20.0 0.0 26.0 20.0 8.0 4 Heating 26.0 4.0 3 20.0 Heating 6 1.0 2 20.0 Heating 5 30.0 1 Heating 4 24.5 2 Cooling 3 1 Cooling 2 1 nt C° Cm °C °C °C Units - Test number Test 1 - Cooling 1 Cooling - 1 Test conditions test Target

Test description

Air on temperature

Air supply to building temperature 3 3 s s -1 -1 Air return from building temperature 3 Table 3 Table s Airflow volume period. test the throughout constant held were conditions supply The required. condition the on depending equipment of range a of use by condition required the at AHU the to supplied was air The -1 xrc a etn 3. Hz Hz 32.6 32.7 kW kW 12.27 m setting fan Extract 12.4 m 1.03 °C setting fan Supply 0.99 °C 26.3 unit supply over Cooling coil over Cooling 20.0 °C °C volume extract Air 30.1 30.2 volume supply Air temp return Air kW temp coil off Air 1.58 temp coil onto Air kW kW Bar temp air Fresh 3.05 Bar 3.00 5.3 low power Compressor % 5.3 Bar high power Compressor 100.0 Bar compressor to Power 17.6 Minutes 17.6 percentage Compressor 30.0 (gauge) High LP (gauge) Low LP (gauge) High HP 16:26:30 29-Apr-10 (gauge) Low HP test of Length test of time Start test of Date Test 2 - Cooling 2 Cooling - 2 Test

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aclean tfor ut -1 -1 Table6 Table4 xrc a etn 3. Hz Hz 32.6 32.7 kW 3.34 kW m setting fan Extract 14.5 m 1.03 °C setting fan Supply 0.99 19.9 °C unit supply over Heating coil 20.0 over Heating °C °C volume extract Air 8.2 17.3 volume supply Air temp return Air kW temp coil off Air 0.48 temp coil onto Air kW kW Bar temp air Fresh 2.21 Bar 0.93 5.3 low power % Compressor 4.4 Bar high power Compressor 30.0 Bar compressor to Power 11.4 Minutes 9.8 percentage Compressor 30.0 (gauge) High LP (gauge) Low LP (gauge) 12:40:00 High HP 30-Apr-10 (gauge) Low HP test of Length test of time Start test of Date Hz Hz 32.6 32.7 kW kW 6.18 m setting fan Extract 24.3 m 0.99 °C setting fan Supply 1.03 °C 20.4 unit supply over Heating coil over Heating 20.0 °C °C volume extract Air 0.8 15.1 volume supply Air temp return Air kW temp coil off Air 0.46 temp coil onto Air kW kW Bar temp air Fresh 2.23 Bar 1.33 4.3 low power % Compressor 3.6 Bar high power Compressor 55.0 Bar compressor to Power Minutes 12.0 10.1 percentage Compressor 30.0 (gauge) High LP (gauge) Low LP 9:50:00 (gauge) High HP 30-Apr-10 (gauge) Low HP test of Length test of time Start test of Date Test 5 - Heating 3 Heating - 5 Test 1 Heating - 3 Test 3 3 3 3 s s s s -1 -1 -1 -1 Table5 Table7 xrc a etn 3. Hz Hz 32.6 32.7 kW kW 4.93 m setting fan Extract 20.7 m 1.01 °C setting fan Supply 1.02 °C 20.4 unit supply over Heating coil over Heating 20.0 °C °C volume extract Air 3.5 16.1 volume supply Air temp return Air kW temp coil off Air 0.48 temp coil onto Air kW kW Bar temp air Fresh 2.21 Bar 1.14 4.7 low power % Compressor 3.9 Bar high power Compressor 43.0 Bar compressor to Power Minutes 11.8 10.0 percentage Compressor 30.0 (gauge) High LP (gauge) Low LP (gauge) High HP 11:02:30 30-Apr-10 (gauge) Low HP test of Length test of time Start test of Date xrc a etn 2. Hz Hz 27.9 27.4 kW kW 10.63 m setting fan Extract 25.9 m 0.77 °C setting fan Supply 0.81 °C 20.7 unit supply over Heating coil over Heating 25.6 °C °C volume extract Air -0.3 15.0 volume supply Air temp return Air kW temp coil off Air 2.41 temp coil onto Air kW kW Bar temp air Fresh 2.46 Bar 2.43 2.9 low power Compressor % 2.9 Bar high power Compressor 100.0 Bar compressor to Power Minutes 13.8 13.8 percentage Compressor 30.0 (gauge) High LP (gauge) Low LP (gauge) High HP 15:23:30 30-Apr-10 (gauge) Low HP test of Length test of time Start test of Date Test 4 - Heating 2 Heating - 4 Test Test 6 - Heating 4 Heating - 6 Test 3 3 3 3 s s s s -1 -1 -1 -1

7 Air Source Renewable Energy 8 Air Source Renewable Energy At the same time the room exhaust air passes air exhaust room the time same the At air. supply room the to energy heat its transfers refrigerant temperature high the where coil air supply the through passing before air return room the from energy heat transfers which wheel thermal the through passing unit Envirofresh the enters air Fresh (VARV). Volume Refrigerant and Air Variable with operates system The air. fresh occupancy for cooling and heating providing system pump heat source, air energy, low a is Envirofresh The Operation...Cooling and Heating the lower temperature refrigerant transfers its transfers refrigerant temperature lower the where coil air supply the through passes then it air, ambient outside the than lower is temperature the If air. return room the from energy cooling transfer to wheel thermal the through passes and unit Envirofresh the enters air fresh outside The EXHAUST FRESH AIR EXHAUST FRESH AIR Heating CycleHeating Cooling CycleCooling disapates the hot air to atmosphere. to air hot the disapates which coil, exhaust the into wheel the through passes air exhaust room the time same the At temperature. air room entering the reducing further air, supply the to energy cooling again. begin to cycle the allowing coil, exhaust the to back returns then refrigerant The room. the entering air supply the heats which coil, supply the to refrigerant the from transferred then is heat The atmosphere. the to discharging before refrigerant the cools which coil, exhaust the onto then wheel thermal the through required. temperature the on dependant operation of mode its changes coil supply The system. compressor the in refrigerant the of direction the reversing possible is This cooling. and heating both provide to utilised is pump heat A RETURN ROOM RETURN ROOM SUPPLY SUPPLY tnadUi Configuration... Unit Standard Balance... Energy Heating temperature is lower than the room exhaust air, exhaust room the than lower is temperature air fresh outside the and requirement, cooling a for calling is room the When 2.19KW ( fan power fan ( 2.19KW 71.7kW outputfor6.29kWinput EXHAUST FRESH AIR FreeCooling Wheel 24W 19.3kW 52.4kW

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.k @45CPCOP 4.5 @ 4.1kW

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demand. cooling the satisfy to available cooling free the utilise will Unit Handling Air Envirofresh the 2.6 x 1.2 x(19+4) = 71.7kW = x(19+4) 1.2 x 2.6 = capacity heating Required Density = 1.2kg/m = Density 20°C return Room gain) fan (ignore 19°C = coil pump heat leaving temp Air -4°C = on temp air Fresh Calculate heating capacity for 2.6m for capacity heating Calculate 3 RETURN ROOM SUPPLY 3 /s unit /s

9 Air Source Renewable Energy 10 Air Source Renewable Energy

Control Option 4 Control Option 3 Control Option 2 Control Option 1 ControlOptions... and Application recirculation on start up. start on recirculation control, temperature air supply Leaving speeds. fan reduce to sensors occupancy and dampers with operate Can control. temp Return coils. air supply for up start on Recirculation air. return from control temperature Room Zone VAV Tempered Central or Displacement Fresh Air Fresh TemperedDisplacement Centralor HeatingZone CO room from control volume extract and Supply ControlRoom Single control. temp air Leaving fan. supply balance to controlled volume fan Extract sensor. pressure discharge from controlled volume fan Supply EX FA EX FA EX EX FA FA 2 . RA SA RA SA RA RA SA SA service. sales after and manufacturing sales, quality a offer we ensure to software manufacturing and selection latest the in invested has Handlers Air standards planning and quotation on customers our give we quality of level high the on ourselves pride We • RADAN• 2010 2010 SOLIDWORKS • AUTOCAD• LT2010 AUTODESK• Selection Software... Selection • Coastal ApplicationCoastal • FiredAHU’s Gas Direct Series DG • CareQuality Health • Heaters Electric • Discharge Intakeor Side • Attenuators In-built • • WeatherproofConstruction Accessories... and Options

11 Air Source Renewable Energy 12 Air Source Renewable Energy without prior notification or public announcement. Air Handlers Northern Ltd is continually developing and improving its produc its improving and developing continually is Ltd Northern Handlers Air announcement. public or notification prior without illustrations, drawings and specifications in this publication present only general particulars and shall not form part of any of part form not shall and particulars general only present publication this in specifications and drawings illustrations, The company reserves the right to make any variation in technical specification to the equipment described, or to withdraw or r or withdraw to or described, equipment the to specification technical in variation any make to right the reserves company The • WRHa ReclaimAHU’s containing Thermal Wheels Heat TWHR subject to the company’s General Conditions of Sale, a copy is available on request. on available is copy a Sale, of Conditions General company’s the to subject • H etRecoveryAHU’s containingRecuperators Heat AHR • HOSP Health care Specification Hygiene AHU’sHygieneSpecification care Health HOSP • • • • AttentuatorsAnti-vibrationand Mounts AHW Welded Frame and Stainless Units AHW WeldedStainless Frameand niors akgdHa PumpUnits EnvirofreshPackaged Heat FreshcoolPackagedonly CoolingUnits • • • • Twin Extract Units ITUVSI, Units and VTI TwinExtract IDG Series Indirect Gas FiredAHU’s Gas Indirect Series IDG DG Series Direct Gas FiredAHU’s Gas Direct Series DG Acoustic Enclosures and Screens and EnclosuresAcoustic • • • rdc Range... Product ltSeries VoidFPVU Units Flat AH Series Modular AHU’sModular Series AH Packaged VoidPVU Units Web: www.airhandlers.net Web: [email protected] Email: 9900 745 0161 Fax: 8888 745 0161 Tel: 1DU M50 Manchester Salford Street, Bute House Proctor Alfred Ltd. Northern Handlers Air contract. All goods are goods All contract. ts. All description, All ts. eplace products eplace