AHTW Compact. Heat Recovery Air Handling Unit. BIM & REVIT Engineering Solutions. Acoustic Testing Laboratory College of Science & Technology

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1 HANDLERS LTD AHTW Compact Heat Recovery Air Handling Unit 1262 Acoustic Testing Laboratory College of Science & Technology BIM & REVIT Engineering Solutions

2 The Company Air Handlers has been trading since May 1989, and has just celebrated 25 years in business in The Company operates from its 60,000 Sq Ft Factory in Salford Quays which was purpose built in year Product Development... The Company is continually updating its products to comply with changing energy saving technologies, so the introduction of the AHTW Compact Range of air handling units is based on changes in specific fan power and heat recovery legislation adopting higher energy saving technology. Compliance... The AHTW air handling units comply with BS EN 1886 Class L2 Construction Standards. Air handling unit construction and ErP European Directive January 2018 for energy recovery efficiencies. Acoustic Performance... Extensive acoustic testing of casework construction has been carried out at both the companies testing facilities, and Salford University Acoustic Testing Laboratory. Acoustic tests were carried out on eleven double skin, composite panel/frame systems, eight different triple and quadruple skin composite panel/frame systems, to BS. EN ISO (2010) which have all been certified as UKAS accredited Acoustic Testing Laboratory College of Science & Technology 2

3 Location Bag Filters AHTW Compact Package Heat Reclaim Air Handling Units are normally located internally in plantrooms, external to the building or on the roof. Construction Frame Insulated extruded anodised aluminium pentapost sections with solid die cast mechanical fit corners are used to build each frame. The frame is acoustically insulated to prevent noise leakage. Panels Panels are flush fitted into the frame and air sealed with neoprene gaskets. A range of acoustically insulated panels are available to meet the sound reduction required in the space. Access Panels All access panels will be flush mounted in the frame, and constructed as the fixed panels. Fan and control panel access panels will be lockable. Quick release, other access panels will have multi directional handles. Heat Recovery The energy recovery device used on the AHTW Compact is a variable speed rotary thermal wheel with a minimum efficiency of 73% in accordance with the January 2018 European Directive Performance Eurovent Certified. Filters Thermal Wheel Filters are fitted to both the fresh air and return air inlets. G4 grade panel filters are used as standard. Disposable multi pocket bag filters can be offered as an alternative or secondary filter with grades F5, F6, F7 available. Manometers or pressure differential guages factory fitted are available as an option. Heating Coil Low temperature hot water heating coils are contained within the casework on slide rails for the ease of removal. Coils are constructed as standard from copper tubes and headers with aluminium fins. Optional coil construction: Bare tube (frost coils) Wide spaced fins (frost coils) Polyester coated fins. Blygold coated fins. Copper fins. HTM 03 compliant coils. Cooling Coil Options Cooling coil options are available to offer mechanical cooling, direct expansion or chilled water coils constructed from copper tubes and headers with aluminium fins as standard. Optional coil construction: Polyester coated aluminium fins. Blygold coated fins. Copper fins. Copper fins electro tinned. HTM -03 Compliant. Drain trays are fitted to cooling coils and can be fixed or removable, all drain trays have a inbuilt slope. Electric Heaters Cooling Coil Manufactured with sheathed elements, and fitted with a high temperature cut out. Balanced phase elements are arranged for thyristor or step control. 3

4 Motors operate via a 0-10V DC output from the motor, it provides infinitely variable speed control. Backward curved scroll free fans are quiet running with optimised airflow through the impeller, giving significantly reduced tonal noise. Dampers Fans Electric Heater All dampers are constructed from an aerofoil section double skin aluminium blade profile with edge, blade and side seals to offer low leakage. The blade rotation is performed by rigid nylon cogs which operate out of Air Stream. The damper operating mechanism is connected to an optional factory fitted and pre-wired actuator via a square brass drive shaft. Thermal Insulated Dampers Thermally insulated blades can be provided for fresh air and exhaust air shut off dampers which add protection to filters and coil freezing. Thermal Insulated Dampers AHTW Compact air handling units have supply and return air backward curved centrifugal plug type fans, direct driven by high efficiency EC motors. This method of scroll free fan produces an optimal low loss flow of air through the impeller so there are no longer any drastic cross sectional changes. Multi fan wall arrangements are used to achieve higher air flow performance and efficiency. Fan Inlet Flow grids By fitting an inlet flow grid to the supply fan it is possible to achieve significant noise reduction from the fan. The noise reduction is predominantly low frequency decay (i.e. 63Hz, Hz, 250Hz), which can help offer significant sound power loss. This sound power loss is created by the reduction in turbulence hitting the rotating blades, with tonal frequency components, known as impellor noise or tonal noise. Tonal noise consists of the blade passing noise and its harmonics. The frequency of the blade passing noise can be calculated as the sum of the fan speed and the number of blades. A flow-grid fitted to the inlet of the fans will significantly reduce the low frequency noise generated disturbance. The vortex is split when impacting the grille as it is considerably weakened when it flows through the flowgrid. Sound pressure is reduced, particularly the low frequency. The chart below indicates the power loss in octave bands. Flowgrids Freq Hz K Fans Power loss db

5 Baseframes Casework Class Formed 2.5mm galvanised steel baseframes are fitted to all AHTW Compact air handling units, a standard height of 100mm is included, but optional increased height baseframes are available on request. In the case of HTM - 03 and healthcare projects, the baseframe will be as laid down in the specifications. All baseframes incorporate lifting points in built into the baseframe and designed to suit the specific lifting weight of the air handling unit. Lifting instructions and method statement for securing lifting equipment are issued with OEM information on delivery. Controls AHTW Compact air handling units can be supplied with an optional in built controls package with weatherproof options. Standard Control Package This option includes for the control panel to be built into the air handling unit casework or mounted directly onto it. All internal components will be pre-wired with isolators, actuators, sensors, thermostats, pressure switches all factory fitted. The control system will incorporate a controller which contains features to act independent or with BMS. Modbus or BACnet facility. Display features can be provided on the controller. The control package includes speed controllers built into the controller to speed regulate the E C fans. Control system options: Trend, Carel or similar controller. Output facility to operate remote condensing unit(s) or heat pump unit(s). Output to operate a thyristor controller (additional) for electric heater 0 < 10 Volt temperature regulation. Internal Control Panel External Weatherproof Control Panel AHTW Compact air handling units have various types of casework available as detailed below. Standard Casework Standard Casework is constructed from a 30mm anodised aluminium framework with 25mm double skin insulated panels. Standard Casework Panel Options 30/25FG OPTION 1 30/25FG 0.9mm inner skin galvanised sheet metal 1.2 mm outer skin galvanised sheet metal OPTION 2 30/25FG 1.2mm inner skin galvanised sheet metal 0.7mm outer skin plastisol plastic coated steel Sound Reduction Index Frequency Hz K 2K 4K 8K Power Loss db /50FG OPTION 1 50/50FG 0.9mm inner skin galvanised sheet metal 1.2 mm outer skin galvanised sheet metal OPTION 2 50/50FG 1.2mm inner skin galvanised sheet metal 0.7mm outer skin plastisol plastic coated steel Sound Reduction Index Frequency Hz K 2K 4K 8K Power Loss db Acoustic Enhanced Casework Various acoustically enhanced panels are available with different thickness and acoustic insulation composites, frames are constructed from anodised aluminium and acoustically insulated to prevent sound leakage. All acoustic panel options are listed below with their sound reduction index. 30/25AS OPTION 1 30/25AS 30mm anodised aluminium acoustic insulated frame with 25mm double skin sound barrier insulated panels. Inner Skin 0.9mm inner skin galvanised sheet metal Outer skin 1.2mm outer skin galvanised sheet metal OPTION 2 30/25AS 1.2mm inner skin galvanised sheet metal 0.7mm outer skin plastisol plastic coated steel Sound Reduction Index 50/50 PB (Double Skin) Frequency Hz K 2K 4K 8K Power Loss db

6 30/25PB OPTION 1 30/25PB 30mm anodised aluminium acoustic insulated frame with 25mm double skin sound barrier insulated panels. Inner Skin 0.9mm inner skin galvanised sheet metal Outer skin 1.2mm outer skin galvanised sheet metal OPTION 2 30/25PB 1.2mm inner skin galvanised sheet metal 0.7mm outer skin plastisol plastic coated steel Sound Reduction Index Frequency Hz K 2K 4K 8K Power Loss db /25TS PB (Triple Skin) OPTION 1 30/25TS PB 30mm anodised aluminium acoustic insulated frame with 25mm double skin sound barrier insulated panels. Inner Skin 0.9mm inner skin galvanised sheet metal Intermediate skin 0.9mm inner skin galvanised sheet metal Outer skin 1.2mm outer skin galvanised sheet metal OPTION 2 30/25TS PB 1.2mm inner skin galvanised sheet metal 1.2mm intermediate skin galvanised sheet metal 0.7mm outer skin plastisol plastic coated steel Sound Reduction Index Frequency Hz K 2K 4K 8K Power Loss db /50FG PB OPTION 1 50/50FG PB 50mm anodised aluminium acoustic insulated frame with 50mm double skin acoustic composite insulated panels. Inner Skin 0.9mm inner skin galvanised sheet metal Outer skin 1.2mm outer skin galvanised sheet metal OPTION 2 50/50FG PB 1.2mm inner skin galvanised sheet metal 0.7mm outer skin plastisol plastic coated steel Sound Reduction Index Frequency Hz K 2K 4K 8K Power Loss db /50FG TS PB (Triple Skin) OPTION 1 30/25FG TS PB 50mm anodised aluminium acoustic insulated frame with 50mm triple skin acoustic composite panels. Inner Skin 0.9mm inner skin galvanised sheet metal Intermediate skin 0.9mm inner skin galvanised sheet metal Outer skin 1.2mm outer skin galvanised sheet metal OPTION 2 50/50FG TS PB 1.2mm inner skin galvanised sheet metal 1.2mm intermediate skin galvanised sheet metal 0.7mm outer skin plastisol plastic coated steel Sound Reduction Index Frequency Hz K 2K 4K 8K Power Loss db /50AS TS PB (Triple Skin) OPTION 1 50/50AS TS PB 50mm anodised aluminium acoustic insulated frame with 50mm triple skin acoustic composite panels. Inner Skin 0.9mm inner skin galvanised sheet metal Intermediate skins 0.9mm inner skin galvanised sheet metal Outer skin 1.2mm outer skin galvanised sheet metal OPTION 2 50/50AS TS PB 1.2mm inner skin galvanised sheet metal 1.2mm intermediate skin galvanised sheet metal 0.7mm outer skin plastisol plastic coated steel Sound Reduction Index Frequency Hz K 2K 4K 8K Power Loss db /50AS QS PB (Quadrouple Skin) OPTION 1 50/50AS QS PB 50mm anodised aluminium acoustic insulated frame with 50mm quadruple skin acoustic composite insulated panels. Inner Skin 0.9mm inner skin galvanised sheet metal Intermediate skin 2 off 0.9mm intermediate skins galvanised sheet metal Outer skin 1.2mm outer skin galvanised sheet metal OPTION 2 50/50AS QS PB 1.2mm inner skin galvanised sheet metal 2 off 1.2mm intermediate skins galvanised sheet metal 0.7mm outer skin plastisol plastic coated steel Sound Reduction Index Frequency Hz K 2K 4K 8K Power Loss db

7 Certification All acoustic SRI tests are certified by Salford University Test Laboratories to BS EN ISO (2010) Report No s 1429 & Accreditation In partnership with Salford University acoustic testing laboratory a range of composite acoustic panels have been designed and tested. To obtain the true casework noise breakout, the frame and panel assembly have to be tested with a large enough area sample to give a true representation of AHTW Compact casework. In practice the framework can leak sound which will flank the panels. Therefore the frame must be acoustically insulated to the same standard as the panels. Test set up during testing programme Assembling test frame and panels 7

8 Type AHTW Compact air handling units are double stacked or side by side in configuration, and can contain different components which are described in their individual type and make up of components. The performance charts will relate to the type of AHTW Compact unit components make up, which allows for individual components maximum pressure drops. Type 1 Components available for selection with type 1 AHTW Compact Units: Inlet attenuators. Inlet/ exhaust dampers. Mixing box/recirculation section Rotary thermal wheel heat recovery device. Panel filters G3/G4 grade on supply and extract. Fan section containing E.C. backward curved plug fan(s). Discharge attenuators. Type 2 Components available for selection with type 2 AHTW Compact Units. Inlet attenuators. Inlet/exhaust dampers. Mixing box/ recirculation section Rotary thermal wheel heat recovery device. Panel filters G3/G4 grade on supply and extract. Electric heater battery. LPHW heating coil. Fan section containing EC backward curved plug fan(s). Discharge attenuators. Type 3 Components available for selection with type 3 AHTW Compact Units Inlet attenuators. Inlet dampers. Mixing box/ recirculation section. Rotary thermal wheel heat recovery device. Panel filters G3/G4 grades on supply and extract. Electric heater battery. LPHW coil. Fan section containing E.C. backward curved plug fan(s). Cooling coil chilled water or direct expansion heat pump coil available. Discharge attenuators. Type 4 Components available for selection with type 4 AHTW Compact Units Inlet attenuators. Inlet dampers. Mixing box/ recirculation section. Rotary thermal wheel heat recovery device. Panel filters G3/G4 grades on supply and extract. Electric heater battery. LPHW coil. Fan section containing E.C. backward curved plug fan(s). Cooling coil chilled water or direct expansion heat pump coil available. Bag filters F5/F6/F7 grade. Discharge attenuators. Note The casework class does not affect the performance value in the selection charts but will affect the dimensions of the unit and its acoustic breakout performance. 8

9 Selection Chart MODEL AHTW 1000/T1/ /1F Performance TYPICAL TYPE 1 COMPONENT CONFIGURATION L1 SIDE ELEVATION FRONT ELEVATION END ELEVATION External Pressure Pascals Airflow (m³/hr) Inlet SWL (db) Outlet SWL (db) Absorbed power (Watts) WATTS 2350RPM EC310/390/1F Airflow (m³/hr) Dry Efficiency % Wet Efficiency % Supply Air Lat C Energy Recovered (Kw) EQUAL FLOWS Casework Class Weight (kg) L1 30/25 FG /25 AS /25 PB /25 TS PB /50 FG /50 FG PB /50 FG TS PB /50 AS TS PB /50 AS QS PB Model T000 9

10 Selection Chart MODEL AHTW 1000/T2/ /1F Performance TYPICAL TYPE 2 COMPONENT CONFIGURATION L1 L2 SIDE ELEVATION FRONT ELEVATION END ELEVATION External Pressure Pascals Airflow (m³/hr) Inlet SWL (db) Outlet SWL (db) Absorbed power (Watts) Airflow (m³/hr) Dry Efficiency % Wet Efficiency % Supply Air Lat C Energy Recovered (Kw) WATTS 2350RPM EC310/390/1F EQUAL FLOWS Casework Class Weight (kg) L1 L2 30/25 FG /25 AS /25 PB /25 TS PB /50 FG /50 FG PB /50 FG TS PB /50 AS TS PB /50 AS QS PB NOTE Type 2 (T2) AHTW Units have a single bottom deck section attached to the type 1 Unit (T1), containing an electric or LPHW heating coil as illustrated on the above diagram. Model T000 Electric Heater Data Based on maximum airflow 9Kw single or three phase electric supply. LPHW Coil Data Based on maximum airflow and 82/71 C. Maximum heating output 10Kw. 10

11 Selection Chart MODEL AHTW 1000/T3/ /1F Performance TYPICAL TYPE 3 COMPONENT CONFIGURATION SIDE ELEVATION 390WATTS 2350RPM EC /1F Model T000 External Pressure Pascals Airflow (m³/hr) Inlet SWL (db) Outlet SWL (db) Absorbed power (Watts) L2 Airflow (m³/hr) Dry Efficiency % Wet Efficiency % Supply Air Lat C Energy Recovered (Kw) EQUAL FLOWS FRONT ELEVATION END ELEVATION Electric Heater Data Based on maximum airflow 9Kw single or three phase electric supply. LPHW Coil Data Based on maximum airflow and 82/71 C. Maximum heating output 10Kw. Cooling/Heat Pump Coil Data Chilled water/direct expansion coil data based on maximum airflow & chilled 6/12 C or DX 6 C. Max cooling output 9Kw. Casework Class Weight (kg) L1 L2 30/25 FG /25 AS /25 PB /25 TS PB /50 FG /50 FG PB /50 FG TS PB /50 AS TS PB /50 AS QS PB NOTE Type 3 (T3) AHTW Units have a single bottom deck section attached to the type 1 (T1) unit, containing an electric or LPHW heating coil, together with a chilled water or direct expansion cooling coil. A heat pump coil is also available in this section as an option. All as illustrated on the above diagram. 11

12 Selection Chart MODEL AHTW 1000/T4/ /1F Performance TYPICAL TYPE 4 COMPONENT CONFIGURATION 12 SIDE ELEVATION L2 390WATTS 2350RPM EC310/390/1F External Pressure Pascals Airflow (m³/hr) Inlet SWL (db) Outlet SWL (db) Absorbed power (Watts) Airflow (m³/hr) Dry Efficiency % Wet Efficiency % Supply Air Lat C Energy Recovered (Kw) FRONT ELEVATION Secondary F7 grade Bag Filters Model T000 EQUAL FLOWS Secondary filter 380mm long bag filter F7grade (pressure drop allowance 200Pa) END ELEVATION Casework Class Weight (kg) L1 L2 30/25 FG /25 AS /25 PB /25 TS PB /50 FG /50 FG PB /50 FG TS PB /50 AS TS PB /50 AS QS PB NOTE Type 3 (T3) AHTW Units have a single bottom deck section attached to the type 1 (T1) unit, containing an electric or LPHW heating coil, together with a chilled water or direct expansion cooling coil. A heat pump coil is also available in this section as an option. All as illustrated on the above diagram. Section includes a F5 to F7 grade Bag Filter arranged for side withdrawal. Electric Heater Data Based on maximum airflow 8Kw single or three phase electric supply. LPHW Coil Data Based on maximum airflow and 82/71 C. Maximum heating output 10Kw. Cooling/Heat Pump Coil Data Chilled water/direct expansion coil data based on maximum airflow & chilled 6/12 C or DX 6 C. Max cooling output 8Kw.

13 Selection Chart MODEL AHTW 1100/T1/ /1F Performance TYPICAL TYPE 1 COMPONENT CONFIGURATION L1 SIDE ELEVATION FRONT ELEVATION END ELEVATION External Pressure Pascals Airflow (m³/hr) Inlet SWL (db) Outlet SWL (db) Absorbed power (Watts) Airflow (m³/hr) Dry Efficiency % Wet Efficiency % Supply Air Lat C Energy Recovered (Kw) EQUAL FLOWS 680WATTS 3000RPM EC310/680/1F Casework Class Weight (kg) L1 30/25 FG /25 AS /25 PB /25 TS PB /50 FG /50 FG PB /50 FG TS PB /50 AS TS PB /50 AS QS PB Model T000 13

14 Selection Chart MODEL AHTW 1100/T2/ /1F Performance TYPICAL TYPE 2 COMPONENT CONFIGURATION L2 SIDE ELEVATION FRONT ELEVATION END ELEVATION 680WATTS 3000RPM EC310/680/1F Casework Class Weight (kg) L1 L2 30/25 FG /25 AS /25 PB /25 TS PB /50 FG /50 FG PB /50 FG TS PB /50 AS TS PB /50 AS QS PB NOTE Type 2 (T2) AHTW Units have a single bottom deck section attached to the type 1 Unit (T1), containing an electric or LPHW heating coil as illustrated on the above diagram. Model T100 Electric Heater Data Based on maximum airflow 18Kw single or three phase electric supply. LPHW Coil Data Based on maximum airflow and 82/71 C. Maximum heating output 20Kw. External Pressure Pascals Airflow (m³/hr) Inlet SWL (db) Outlet SWL (db) Absorbed power (Watts) Airflow (m³/hr) Dry Efficiency % Wet Efficiency % Supply Air Lat C Energy Recovered (Kw) EQUAL FLOWS 14

15 Selection Chart MODEL AHTW 1100/T3/ /1F Performance TYPICAL TYPE 3 COMPONENT CONFIGURATION SIDE ELEVATION L2 680WATTS 3000RPM EC310/680/1F FRONT ELEVATION Model T100 External Pressure Pascals Airflow (m³/hr) Inlet SWL (db) Outlet SWL (db) Absorbed power (Watts) END ELEVATION Casework Class Weight (kg) L1 L2 30/25 FG /25 AS /25 PB /25 TS PB /50 FG /50 FG PB /50 FG TS PB /50 AS TS PB /50 AS QS PB NOTE Type 3 (T3) AHTW Units have a single bottom deck section attached to the type 1 (T1) unit, containing an electric or LPHW heating coil, together with a chilled water or direct expansion cooling coil. A heat pump coil is also available in this section as an option. All as illustrated on the above diagram. Cooling/Heat Pump Coil Data Chilled water/direct expansion coil data based on maximum airflow & chilled 6/12 C or DX 6 C. Max cooling output 20Kw. Airflow (m³/hr) Dry Efficiency % Wet Efficiency % Supply Air Lat C Energy Recovered (Kw) EQUAL FLOWS Electric Heater Data Based on maximum airflow 15Kw single or three phase electric supply. LPHW Coil Data Based on maximum airflow and 82/71 C. Maximum heating output 16Kw. 15

16 Selection Chart MODEL AHTW 1100/T4/ /1F Performance TYPICAL TYPE 4 COMPONENT CONFIGURATION 16 SIDE ELEVATION L2 680WATTS 3000RPM EC310/680/1F FRONT ELEVATION Secondary F7 Bag Filters. Model T100 External Pressure Pascals Airflow (m³/hr) Inlet SWL (db) Outlet SWL (db) Absorbed power (Watts) Airflow (m³/hr) Dry Efficiency % Wet Efficiency % Supply Air Lat C Energy Recovered (Kw) END ELEVATION Casework Class Weight (kg) L1 L2 30/25 FG /25 AS /25 PB /25 TS PB /50 FG /50 FG PB /50 FG TS PB /50 AS TS PB /50 AS QS PB NOTE Type 3 (T3) AHTW Units have a single bottom deck section attached to the type 1 (T1) unit, containing an electric or LPHW heating coil, together with a chilled water or direct expansion cooling coil. A heat pump coil is also available in this section as an option. All as illustrated on the above diagram. Section includes a F5 to F7 grade Bag Filter arranged for side withdrawal. Electric Heater Data Based on maximum airflow 15Kw single or three phase electric supply. LPHW Coil Data Based on maximum airflow and 82/71 C. Maximum heating output 17Kw.. Cooling/Heat Pump Coil Data Chilled water/direct expansion coil data based on maximum airflow & chilled 6/12 C or DX 6 C. Max cooling output 15Kw. EQUAL FLOWS Secondary Filter 380mm long Bag Filter F7 grade (pressure drop allowance 200Pa).

17 Selection Chart MODEL AHTW 1500/T1/ /2F Performance TYPICAL TYPE 1 COMPONENT CONFIGURATION L1 SIDE ELEVATION External Pressure Pascals Airflow (m³/hr) Inlet SWL (db) Outlet SWL (db) Absorbed power (Watts) WATTS 2350RPM EC310/390/2F FRONT ELEVATION Airflow (m³/hr) Dry Efficiency % Wet Efficiency % Supply Air Lat C Energy Recovered (Kw) EQUAL FLOWS Model T500 END ELEVATION Casework Class Weight (kg) L1 30/25 FG /25 AS /25 PB /25 TS PB /50 FG /50 FG PB /50 FG TS PB /50 AS TS PB /50 AS QS PB

18 Selection Chart MODEL AHTW 1500/T2/ /2F Performance TYPICAL TYPE 2 COMPONENT CONFIGURATION L1 External Pressure Pascals Airflow (m³/hr) Inlet SWL (db) Outlet SWL (db) Absorbed power (Watts) Airflow (m³/hr) Dry Efficiency % Wet Efficiency % Supply Air Lat C Energy Recovered (Kw) EQUAL FLOWS L2 SIDE ELEVATION FRONT ELEVATION END ELEVATION 780WATTS 2350RPM EC310/390/2F Model T500 Electric Heater Data Based on maximum airflow 24Kw single or three phase electric supply. LPHW Coil Data Based on maximum airflow and 82/71 C. Maximum heating output 26Kw. Casework Class Weight (kg) L1 L2 30/25 FG /25 AS /25 PB /25 TS PB /50 FG /50 FG PB /50 FG TS PB /50 AS TS PB /50 AS QS PB NOTE Type 2 (T2) AHTW Units have a single bottom deck section attached to the type 1 Unit (T1), containing an electric or LPHW heating coil as illustrated on the above diagram. 18

19 Selection Chart MODEL AHTW 1500/T3/ /2F Performance TYPICAL TYPE 3 COMPONENT CONFIGURATION SIDE ELEVATION L2 780WATTS 2350RPM EC310/390/2F FRONT ELEVATION Model T500 External Pressure Pascals Airflow (m³/hr) Inlet SWL (db) Outlet SWL (db) Absorbed power (Watts) Airflow (m³/hr) Dry Efficiency % Wet Efficiency % Supply Air Lat C Energy Recovered (Kw) EQUAL FLOWS END ELEVATION Casework Class Weight (kg) L1 L2 30/25 FG /25 AS /25 PB /25 TS PB /50 FG /50 FG PB /50 FG TS PB /50 AS TS PB /50 AS QS PB NOTE Type 3 (T3) AHTW Units have a single bottom deck section attached to the type 1 (T1) unit, containing an electric or LPHW heating coil, together with a chilled water or direct expansion cooling coil. A heat pump coil is also available in this section as an option. All as illustrated on the above diagram. Electric Heater Data Based on maximum airflow 24Kw single or three phase electric supply. LPHW Coil Data Based on maximum airflow and 82/71 C. Maximum heating output 26Kw. Cooling/Heat Pump Coil Data Chilled water/direct expansion coil data based on maximum airflow & chilled 6/12 C or DX 6 C. Max cooling output 21Kw. 19

20 Selection Chart MODEL AHTW 1500/T4/ /2F Performance TYPICAL TYPE 4 COMPONENT CONFIGURATION 20 SIDE ELEVATION L2 780WATTS 2350RPM EC310/390/2F External Pressure Pascals Airflow (m³/hr) Inlet SWL (db) Outlet SWL (db) Absorbed power (Watts) Airflow (m³/hr) Dry Efficiency % Wet Efficiency % Supply Air Lat C Energy Recovered (Kw) FRONT ELEVATION Secondary F7 grade Bag Filters Model T EQUAL FLOWS Secondary filter 380mm long bag filter F7grade (pressure drop allowance 200Pa) END ELEVATION Casework Class Weight (kg) L1 L2 30/25 FG /25 AS /25 PB /25 TS PB /50 FG /50 FG PB /50 FG TS PB /50 AS TS PB /50 AS QS PB NOTE Type 3 (T3) AHTW Units have a single bottom deck section attached to the type 1 (T1) unit, containing an electric or LPHW heating coil, together with a chilled water or direct expansion cooling coil. A heat pump coil is also available in this section as an option. All as illustrated on the above diagram. Section includes a F5 to F7 grade Bag Filter arranged for side withdrawal. Electric Heater Data Based on maximum airflow 15Kw single or three phase electric supply. LPHW Coil Data Based on maximum airflow and 82/71 C. Maximum heating output 16Kw. Cooling/Heat Pump Coil Data Chilled water/direct expansion coil data based on maximum airflow & chilled 6/12 C or DX 6 C. Max cooling output 14Kw.

21 Selection Chart MODEL AHTW 1600/T1/ /2F Performance TYPICAL TYPE 1 COMPONENT CONFIGURATION L1 SIDE ELEVATION FRONT ELEVATION END ELEVATION External Pressure Pascals Airflow (m³/hr) Inlet SWL (db) Outlet SWL (db) Absorbed power (Watts) Airflow (m³/hr) Dry Efficiency % Wet Efficiency % Supply Air Lat C Energy Recovered (Kw) EQUAL FLOWS 1360WATTS 3000RPM EC310/680/2F Casework Class Weight (kg) L1 30/25 FG /25 AS /25 PB /25 TS PB /50 FG /50 FG PB /50 FG TS PB /50 AS TS PB /50 AS QS PB Model T600 21

22 Selection Chart MODEL AHTW 1600/T2/ /2F Performance TYPICAL TYPE 2 COMPONENT CONFIGURATION L2 SIDE ELEVATION FRONT ELEVATION END ELEVATION 1360WATTS 3000RPM EC310/680/2F Casework Class Weight (kg) L1 L2 30/25 FG /25 AS /25 PB /25 TS PB /50 FG /50 FG PB /50 FG TS PB /50 AS TS PB /50 AS QS PB NOTE Type 2 (T2) AHTW Units have a single bottom deck section attached to the type 1 Unit (T1), containing an electric or LPHW heating coil as illustrated on the above diagram. Model T600 Electric Heater Data Based on maximum airflow 36Kw single or three phase electric supply. LPHW Coil Data Based on maximum airflow and 82/71 C. Maximum heating output 39Kw. External Pressure Pascals Airflow (m³/hr) Inlet SWL (db) Outlet SWL (db) Absorbed power (Watts) Airflow (m³/hr) Dry Efficiency % Wet Efficiency % Supply Air Lat C Energy Recovered (Kw) EQUAL FLOWS 22

23 Selection Chart MODEL AHTW 1600/T3/ /2F Performance TYPICAL TYPE 3 COMPONENT CONFIGURATION SIDE ELEVATION L2 1360WATTS 3000RPM EC310/680/2F FRONT ELEVATION Model T600 External Pressure Pascals Airflow (m³/hr) Inlet SWL (db) Outlet SWL (db) Absorbed power (Watts) END ELEVATION Casework Class Weight (kg) L1 L2 30/25 FG /25 AS /25 PB /25 TS PB /50 FG /50 FG PB /50 FG TS PB /50 AS TS PB /50 AS QS PB NOTE Type 3 (T3) AHTW Units have a single bottom deck section attached to the type 1 (T1) unit, containing an electric or LPHW heating coil, together with a chilled water or direct expansion cooling coil. A heat pump coil is also available in this section as an option. All as illustrated on the above diagram. Cooling/Heat Pump Coil Data Chilled water/direct expansion coil data based on maximum airflow & chilled 6/12 C or DX 6 C. Max cooling output 36Kw. Airflow (m³/hr) Dry Efficiency % Wet Efficiency % Supply Air Lat C Energy Recovered (Kw) EQUAL FLOWS Electric Heater Data Based on maximum airflow 33Kw single or three phase electric supply. LPHW Coil Data Based on maximum airflow and 82/71 C. Maximum heating output 36Kw. 23

24 Selection Chart MODEL AHTW 1600/T4/ /2F Performance TYPICAL TYPE 4 COMPONENT CONFIGURATION 24 SIDE ELEVATION L2 1360WATTS 3000RPM EC310/680/2F FRONT ELEVATION Secondary F7 Bag Filters. Model T600 External Pressure Pascals Airflow (m³/hr) Inlet SWL (db) Outlet SWL (db) Absorbed power (Watts) Airflow (m³/hr) Dry Efficiency % Wet Efficiency % Supply Air Lat C Energy Recovered (Kw) END ELEVATION Casework Class Weight (kg) L1 L2 30/25 FG /25 AS /25 PB /25 TS PB /50 FG /50 FG PB /50 FG TS PB /50 AS TS PB /50 AS QS PB NOTE Type 3 (T3) AHTW Units have a single bottom deck section attached to the type 1 (T1) unit, containing an electric or LPHW heating coil, together with a chilled water or direct expansion cooling coil. A heat pump coil is also available in this section as an option. All as illustrated on the above diagram. Section includes a F5 to F7 grade Bag Filter arranged for side withdrawal. Electric Heater Data Based on maximum airflow 30Kw single or three phase electric supply. LPHW Coil Data Based on maximum airflow and 82/71 C. Maximum heating output 34Kw. Cooling/Heat Pump Coil Data Chilled water/direct expansion coil data based on maximum airflow & chilled 6/12 C or DX 6 C. Max cooling output 35Kw. EQUAL FLOWS Secondary Filter 380mm long Bag Filter F7 grade (pressure drop allowance 200Pa).

25 Selection Chart MODEL AHTW 1700/T1/ /3F Performance TYPICAL TYPE 1 COMPONENT CONFIGURATION L1 SIDE ELEVATION External Pressure Pascals Airflow (m³/hr) Inlet SWL (db) Outlet SWL (db) Absorbed power (Watts) WATTS 2350RPM EC310/390/3F FRONT ELEVATION Airflow (m³/hr) Dry Efficiency % Wet Efficiency % Supply Air Lat C Energy Recovered (Kw) EQUAL FLOWS Model T END ELEVATION Casework Class Weight (kg) L1 30/25 FG /25 AS /25 PB /25 TS PB /50 FG /50 FG PB /50 FG TS PB /50 AS TS PB /50 AS QS PB

26 Selection Chart MODEL AHTW 1700/T2/ /3F Performance TYPICAL TYPE 2 COMPONENT CONFIGURATION L1 SIDE ELEVATION L2 External Pressure Pascals Airflow (m³/hr) Inlet SWL (db) Outlet SWL (db) Absorbed power (Watts) WATTS 2350RPM EC310/390/3F FRONT ELEVATION Airflow (m³/hr) Dry Efficiency % Wet Efficiency % Supply Air Lat C Energy Recovered (Kw) EQUAL FLOWS Model T END ELEVATION Casework Class Weight (kg) L1 L2 30/25 FG /25 AS /25 PB /25 TS PB /50 FG /50 FG PB /50 FG TS PB /50 AS TS PB /50 AS QS PB NOTE Type 2 (T2) AHTW Units have a single bottom deck section attached to the type 1 Unit (T1), containing an electric or LPHW heating coil as illustrated on the above diagram. Electric Heater Data Based on maximum airflow 33Kw single or three phase electric supply. LPHW Coil Data Based on maximum airflow and 82/71 C. Maximum heating output 36Kw. 26

27 Selection Chart MODEL AHTW 1700/T3/ /3F Performance TYPICAL TYPE 3 COMPONENT CONFIGURATION L1 SIDE ELEVATION L WATTS 2350RPM EC310/390 /3F FRONT ELEVATION Model T External Pressure Pascals Airflow (m³/hr) Inlet SWL (db) Outlet SWL (db) Absorbed power (Watts) Airflow (m³/hr) Dry Efficiency % Wet Efficiency % Supply Air Lat C Energy Recovered (Kw) EQUAL FLOWS END ELEVATION Casework Class Weight (kg) L1 L2 30/25 FG /25 AS /25 PB /25 TS PB /50 FG /50 FG PB /50 FG TS PB /50 AS TS PB /50 AS QS PB NOTE Type 3 (T3) AHTW Units have a single bottom deck section attached to the type 1 (T1) unit, containing an electric or LPHW heating coil, together with a chilled water or direct expansion cooling coil. A heat pump coil is also available in this section as an option. All as illustrated on the above diagram. Electric Heater Data Based on maximum airflow 33Kw single or three phase electric supply. LPHW Coil Data Based on maximum airflow and 82/71 C. Maximum heating output 36Kw. Cooling/Heat Pump Coil Data Chilled water/direct expansion coil data based on maximum airflow & chilled 6/12 C or DX 6 C. Max cooling output 36Kw. 27

28 Selection Chart MODEL AHTW 1700/T4/ /3F Performance TYPICAL TYPE 4 COMPONENT CONFIGURATION 28 L1 SIDE ELEVATION L2 1170WATTS 2350RPM EC310/390/3F FRONT ELEVATION Secondary F7 grade Bag Filters Model T External Pressure Pascals Airflow (m³/hr) Inlet SWL (db) Outlet SWL (db) Absorbed power (Watts) Airflow (m³/hr) Dry Efficiency % Wet Efficiency % Supply Air Lat C Energy Recovered (Kw) EQUAL FLOWS END ELEVATION Casework Class Weight (kg) L1 L2 30/25 FG /25 AS /25 PB /25 TS PB /50 FG /50 FG PB /50 FG TS PB /50 AS TS PB /50 AS QS PB NOTE Type 3 (T3) AHTW Units have a single bottom deck section attached to the type 1 (T1) unit, containing an electric or LPHW heating coil, together with a chilled water or direct expansion cooling coil. A heat pump coil is also available in this section as an option. All as illustrated on the above diagram. Section includes a F5 to F7 grade Bag Filter arranged for side withdrawal. Electric Heater Data Based on maximum airflow 21Kw single or three phase electric supply. LPHW Coil Data Based on maximum airflow and 82/71 C. Maximum heating output 25Kw. Cooling/Heat Pump Coil Data Chilled water/direct expansion coil data based on maximum airflow & chilled 6/12 C or DX 6 C. Max cooling output 24Kw.

29 Selection Chart MODEL AHTW 1900/T1/ /3F Performance TYPICAL TYPE 1 COMPONENT CONFIGURATION L1 SIDE ELEVATION FRONT ELEVATION END ELEVATION External Pressure Pascals Airflow (m³/hr) Inlet SWL (db) Outlet SWL (db) Absorbed power (Watts) Airflow (m³/hr) Dry Efficiency % Wet Efficiency % Supply Air Lat C Energy Recovered (Kw) EQUAL FLOWS 2040WATTS 3000RPM EC310/680/3F Casework Class Weight (kg) L1 30/25 FG /25 AS /25 PB /25 TS PB /50 FG /50 FG PB /50 FG TS PB /50 AS TS PB /50 AS QS PB Model T

30 Selection Chart MODEL AHTW 1900/T2/ /3F Performance TYPICAL TYPE 2 COMPONENT CONFIGURATION L1 SIDE ELEVATION L2 2040WATTS 3000RPM EC310/680/3F FRONT ELEVATION Model T END ELEVATION Casework Class Weight (kg) L1 L2 30/25 FG /25 AS /25 PB /25 TS PB /50 FG /50 FG PB /50 FG TS PB /50 AS TS PB /50 AS QS PB NOTE Type 2 (T2) AHTW Units have a single bottom deck section attached to the type 1 Unit (T1), containing an electric or LPHW heating coil as illustrated on the above diagram. Electric Heater Data Based on maximum airflow 54Kw single or three phase electric supply. LPHW Coil Data Based on maximum airflow and 82/71 C. Maximum heating output 60Kw. External Pressure Pascals Airflow (m³/hr) Inlet SWL (db) Outlet SWL (db) Absorbed power (Watts) Airflow (m³/hr) Dry Efficiency % Wet Efficiency % Supply Air Lat C Energy Recovered (Kw) EQUAL FLOWS 30

31 Selection Chart MODEL AHTW 1900/T3/ /3F Performance TYPICAL TYPE 3 COMPONENT CONFIGURATION L1 SIDE ELEVATION L2 2040WATTS 3000RPM EC310/680/3F FRONT ELEVATION Model T External Pressure Pascals Airflow (m³/hr) Inlet SWL (db) Outlet SWL (db) Absorbed power (Watts) END ELEVATION Airflow (m³/hr) Dry Efficiency % Wet Efficiency % Supply Air Lat C Energy Recovered (Kw) EQUAL FLOWS Casework Class Weight (kg) L1 L2 30/25 FG /25 AS /25 PB /25 TS PB /50 FG /50 FG PB /50 FG TS PB /50 AS TS PB /50 AS QS PB NOTE Type 3 (T3) AHTW Units have a single bottom deck section attached to the type 1 (T1) unit, containing an electric or LPHW heating coil, together with a chilled water or direct expansion cooling coil. A heat pump coil is also available in this section as an option. All as illustrated on the above diagram. Electric Heater Data Based on maximum airflow 51Kw single or three phase electric supply. LPHW Coil Data Based on maximum airflow and 82/71 C. Maximum heating output 55Kw. Cooling/Heat Pump Coil Data Chilled water/direct expansion coil data based on maximum airflow & chilled 6/12 C or DX 6 C. Max cooling output 55Kw. 31

32 Selection Chart MODEL AHTW 1900/T4/ /3F Performance TYPICAL TYPE 4 COMPONENT CONFIGURATION 32 L1 SIDE ELEVATION L2 2040WATTS 3000RPM EC310/680/3F FRONT ELEVATION Secondary F7 Bag Filters. Model T External Pressure Pascals Airflow (m³/hr) Inlet SWL (db) Outlet SWL (db) Absorbed power (Watts) Airflow (m³/hr) Dry Efficiency % Wet Efficiency % Supply Air Lat C Energy Recovered (Kw) END ELEVATION EQUAL FLOWS Secondary Filter 380mm long Bag Filter F7 grade (pressure drop allowance 200Pa). Casework Class Weight (kg) L1 L2 30/25 FG /25 AS /25 PB /25 TS PB /50 FG /50 FG PB /50 FG TS PB /50 AS TS PB /50 AS QS PB NOTE Type 3 (T3) AHTW Units have a single bottom deck section attached to the type 1 (T1) unit, containing an electric or LPHW heating coil, together with a chilled water or direct expansion cooling coil. A heat pump coil is also available in this section as an option. All as illustrated on the above diagram. Section includes a F5 to F7 grade Bag Filter arranged for side withdrawal. Electric Heater Data Based on maximum airflow 42Kw single or three phase electric supply. LPHW Coil Data Based on maximum airflow and 82/71 C. Maximum heating output 46Kw. Cooling/Heat Pump Coil Data Chilled water/direct expansion coil data based on maximum airflow & chilled 6/12 C or DX 6 C. Max cooling output 45Kw.

33 Selection Chart MODEL AHTW 2200/T1/ /4F Performance TYPICAL TYPE 1 COMPONENT CONFIGURATION L1 SIDE ELEVATION External Pressure Pascals Airflow (m³/hr) Inlet SWL (db) Outlet SWL (db) Absorbed power (Watts) WATTS 2350RPM EC310/390/4F FRONT ELEVATION Airflow (m³/hr) Dry Efficiency % Wet Efficiency % Supply Air Lat C Energy Recovered (Kw) EQUAL FLOWS Model T END ELEVATION Casework Class Weight (kg) L1 30/25 FG /25 AS /25 PB /25 TS PB /50 FG /50 FG PB /50 FG TS PB /50 AS TS PB /50 AS QS PB

34 Selection Chart MODEL AHTW 2200/T2/ /4F Performance TYPICAL TYPE 2 COMPONENT CONFIGURATION L1 SIDE ELEVATION L2 FRONT ELEVATION External Pressure Pascals Airflow (m³/hr) Inlet SWL (db) Outlet SWL (db) Absorbed power (Watts) Airflow (m³/hr) WATTS 2350RPM EC310/390/4F Dry Efficiency % Wet Efficiency % Supply Air Lat C Energy Recovered (Kw) EQUAL FLOWS Model T END ELEVATION Casework Class Weight (kg) L1 L2 30/25 FG /25 AS /25 PB /25 TS PB /50 FG /50 FG PB /50 FG TS PB /50 AS TS PB /50 AS QS PB NOTE Type 2 (T2) AHTW Units have a single bottom deck section attached to the type 1 Unit (T1), containing an electric or LPHW heating coil as illustrated on the above diagram. Electric Heater Data Based on maximum airflow 45Kw single or three phase electric supply. LPHW Coil Data Based on maximum airflow and 82/71 C. Maximum heating output 50Kw. 34

35 Selection Chart MODEL AHTW 2200/T3/ /4F Performance TYPICAL TYPE 3 COMPONENT CONFIGURATION L1 SIDE ELEVATION L2 1560WATTS 2350RPM EC310/390/4F FRONT ELEVATION Model T External Pressure Pascals Airflow (m³/hr) Inlet SWL (db) Outlet SWL (db) Absorbed power (Watts) Airflow (m³/hr) Dry Efficiency % Wet Efficiency % Supply Air Lat C Energy Recovered (Kw) EQUAL FLOWS END ELEVATION Casework Class Weight (kg) L1 L2 30/25 FG /25 AS /25 PB /25 TS PB /50 FG /50 FG PB /50 FG TS PB /50 AS TS PB /50 AS QS PB NOTE Type 3 (T3) AHTW Units have a single bottom deck section attached to the type 1 (T1) unit, containing an electric or LPHW heating coil, together with a chilled water or direct expansion cooling coil. A heat pump coil is also available in this section as an option. All as illustrated on the above diagram. Electric Heater Data Based on maximum airflow 42Kw single or three phase electric supply. LPHW Coil Data Based on maximum airflow and 82/71 C. Maximum heating output 46Kw. Cooling/Heat Pump Coil Data Chilled water/direct expansion coil data based on maximum airflow & chilled 6/12 C or DX 6 C. Max cooling output 45Kw. 35

36 Selection Chart MODEL AHTW 2200/T4/ /4F Performance TYPICAL TYPE 4 COMPONENT CONFIGURATION 36 L1 SIDE ELEVATION L2 1560WATTS 2350RPM EC310/390/4F External Pressure Pascals Airflow (m³/hr) Inlet SWL (db) Outlet SWL (db) Absorbed power (Watts) Airflow (m³/hr) Dry Efficiency % Wet Efficiency % Supply Air Lat C Energy Recovered (Kw) FRONT ELEVATION Secondary F7 grade Bag Filters Model T EQUAL FLOWS Secondary filter 380mm long bag filter F7grade (pressure drop allowance 200Pa) END ELEVATION Casework Class Weight (kg) L1 L2 30/25 FG /25 AS /25 PB /25 TS PB /50 FG /50 FG PB /50 FG TS PB /50 AS TS PB /50 AS QS PB NOTE Type 3 (T3) AHTW Units have a single bottom deck section attached to the type 1 (T1) unit, containing an electric or LPHW heating coil, together with a chilled water or direct expansion cooling coil. A heat pump coil is also available in this section as an option. All as illustrated on the above diagram. Section includes a F5 to F7 grade Bag Filter arranged for side withdrawal. Electric Heater Data Based on maximum airflow 30Kw single or three phase electric supply. LPHW Coil Data Based on maximum airflow and 82/71 C. Maximum heating output 36Kw. Cooling/Heat Pump Coil Data Chilled water/direct expansion coil data based on maximum airflow & chilled 6/12 C or DX 6 C. Max cooling output 35Kw.

37 Selection Chart MODEL AHTW 2200/T1/ /4F Performance TYPICAL TYPE 1 COMPONENT CONFIGURATION L1 SIDE ELEVATION External Pressure Pascals Airflow (m³/hr) Inlet SWL (db) Outlet SWL (db) Absorbed power (Watts) WATTS 3000RPM EC310/680/4F FRONT ELEVATION Model T END ELEVATION Airflow (m³/hr) Dry Efficiency % Wet Efficiency % Supply Air Lat C Energy Recovered (Kw) EQUAL FLOWS Casework Class Weight (kg) L1 30/25 FG /25 AS /25 PB /25 TS PB /50 FG /50 FG PB /50 FG TS PB /50 AS TS PB /50 AS QS PB

38 Selection Chart MODEL AHTW 2200/T2/ /4F Performance TYPICAL TYPE 2 COMPONENT CONFIGURATION L1 SIDE ELEVATION L2 2720WATTS 3000RPM EC310/680/4F FRONT ELEVATION Model T END ELEVATION Casework Class Weight (kg) L1 L2 30/25 FG /25 AS /25 PB /25 TS PB /50 FG /50 FG PB /50 FG TS PB /50 AS TS PB /50 AS QS PB NOTE Type 2 (T2) AHTW Units have a single bottom deck section attached to the type 1 Unit (T1), containing an electric or LPHW heating coil as illustrated on the above diagram. Electric Heater Data Based on maximum airflow 75Kw single or three phase electric supply. LPHW Coil Data Based on maximum airflow and 82/71 C. Maximum heating output 85Kw. External Pressure Pascals Airflow (m³/hr) Inlet SWL (db) Outlet SWL (db) Absorbed power (Watts) Airflow (m³/hr) Dry Efficiency % Wet Efficiency % Supply Air Lat C Energy Recovered (Kw) EQUAL FLOWS 38

39 Selection Chart MODEL AHTW 2200/T3/ /4F Performance TYPICAL TYPE 3 COMPONENT CONFIGURATION L1 SIDE ELEVATION L2 2720WATTS 3000RPM EC310/680/4F FRONT ELEVATION Model T External Pressure Pascals Airflow (m³/hr) Inlet SWL (db) Outlet SWL (db) Absorbed power (Watts) END ELEVATION Casework Class Weight (kg) L1 L2 30/25 FG /25 AS /25 PB /25 TS PB /50 FG /50 FG PB /50 FG TS PB /50 AS TS PB /50 AS QS PB NOTE Type 3 (T3) AHTW Units have a single bottom deck section attached to the type 1 (T1) unit, containing an electric or LPHW heating coil, together with a chilled water or direct expansion cooling coil. A heat pump coil is also available in this section as an option. All as illustrated on the above diagram. Cooling/Heat Pump Coil Data Chilled water/direct expansion coil data based on maximum airflow & chilled 6/12 C or DX 6 C. Max cooling output 65Kw. Airflow (m³/hr) Dry Efficiency % Wet Efficiency % Supply Air Lat C Energy Recovered (Kw) EQUAL FLOWS Electric Heater Data Based on maximum airflow 66Kw single or three phase electric supply. LPHW Coil Data Based on maximum airflow and 82/71 C. Maximum heating output 70Kw. 39

40 Selection Chart MODEL AHTW 2200/T4/ /4F Performance TYPICAL TYPE 4 COMPONENT CONFIGURATION 40 L1 SIDE ELEVATION L2 2720WATTS 3000RPM EC310/680/4F FRONT ELEVATION Secondary F7 Bag Filters. Model T External Pressure Pascals Airflow (m³/hr) Inlet SWL (db) Outlet SWL (db) Absorbed power (Watts) Airflow (m³/hr) Dry Efficiency % Wet Efficiency % Supply Air Lat C Energy Recovered (Kw) END ELEVATION EQUAL FLOWS Secondary Filter 380mm long Bag Filter F7 grade (pressure drop allowance 200Pa). Casework Class Weight (kg) L1 L2 30/25 FG /25 AS /25 PB /25 TS PB /50 FG /50 FG PB /50 FG TS PB /50 AS TS PB /50 AS QS PB NOTE Type 3 (T3) AHTW Units have a single bottom deck section attached to the type 1 (T1) unit, containing an electric or LPHW heating coil, together with a chilled water or direct expansion cooling coil. A heat pump coil is also available in this section as an option. All as illustrated on the above diagram. Section includes a F5 to F7 grade Bag Filter arranged for side withdrawal. Electric Heater Data Based on maximum airflow 57Kw single or three phase electric supply. LPHW Coil Data Based on maximum airflow and 82/71 C. Maximum heating output 65Kw. Cooling/Heat Pump Coil Data Chilled water/direct expansion coil data based on maximum airflow & chilled 6/12 C or DX 6 C. Max cooling output 60Kw.

41 Performance Graphs 600 Type 1 & / 390 Fans 700 Type / 680 Fans External Resistance (PA) External Resistance (PA) External Resistance (PA) AHT100 / T1 & 2 / / 1F AHT500 / T1 & 2 / / 2F AHT700 / T1 & 2 / / 3F AHT200 / T1 & 2 / / 4F Airflow (M 3 /Hr) Type 1 & / 680 Fans AHT100 / T1 & 2 / / 1F AHT600 / T1 & 2 / / 2F AHT900 / T1 & 2 / / 3F AHT200 / T1 & 2 / / 4F Airflow (M 3 /Hr) AHT100 / T3 / / 1F Type / 390 Fans AHT500 / T3 / / 2F AHT700 / T3 / / 3F AHT200 / T3 / / 4F External Resistance (PA) External Resistance (PA) External Resistance (PA) AHT100 / T3 / / 1F AHT600 / T3 / / 2F AHT900 / T3 / / 3F AHT200 / T3 / / 4F Airflow (M 3 /Hr) AHT000 / T14 / / 1F Type / 390 Fans AHT500 / T4 / / 2F AHT700 / T4 / / 3F AHT200 / T4 / / 4F Airflow (M 3 /Hr) AHT100 / T4 / / 1F Type / 680 Fans AHT600 / T4 / / 2F AHT900 / T4 / / 3F AHT200 / T4 / / 4F Airflow (M 3 /Hr) Airflow (M 3 /Hr) 41

42 Weatherproofing - External Model For externally mounted AHTW Compact Units, fully weatherproof construction options are provided, incorporating a pent style roof with directional gradient slopes to protect against rain ingress as illustrated below. Type 1 Type 2 Type 3 Type 4 SIDE ELEVATION FRONT ELEVATION END ELEVATION SIDE ELEVATION FRONT ELEVATION END ELEVATION SIDE ELEVATION FRONT ELEVATION END ELEVATION SIDE ELEVATION FRONT ELEVATION END ELEVATION 42

43 Standard Weather Cowl Standard weather cowls contain louvre blades to give added weather protection. The cowls are constructed from plastisol plastic coated sheet steel. H W AHTW REF WEIGHT KG W D H AHTW 1000/390/1F/30/ AHTW 1000/390/1F/50/ AHTW 1100/680/1F/30/ AHTW 1100/680/1F/50/ AHTW 1500/390/2F/30/ AHTW 1500/390/2F/50/ AHTW 1600/680/2F/30/ AHTW 1600/680/2F/50/ AHTW 1700/390/3F/30/ AHTW 1700/390/3F/50/ AHTW 1900/680/3F/30/ AHTW 1900/680/3F/50/ AHTW 2200/390/4F/30/ AHTW 2200/390/4F/50/ AHTW 2200/680/4F/30/ AHTW 2200/680/4F/50/ Standard Louvre Deep seal weather louvres are provided as standard on fresh air intakes and exhaust air outlets, constructed from anodised aluminium with plastisol plastic coated steel frame. H AHTW REF WEIGHT KG W D H AHTW 1000/390/1F/30/ AHTW 1000/390/1F/50/ AHTW 1100/680/1F/30/ AHTW 1100/680/1F/50/ AHTW 1500/390/2F/30/ AHTW 1500/390/2F/50/ AHTW 1600/680/2F/30/ AHTW 1600/680/2F/50/ AHTW 1700/390/3F/30/ AHTW 1700/390/3F/50/ AHTW 1900/680/3F/50/ AHTW 1900/680/3F/50/ AHTW 2200/390/4F/30/ AHTW 2200/390/4F/50/ AHTW 2200/680/4F/30/ AHTW 2200/680/4F/50/ D D W 43

44 Attenuation All attenuators are provided to match the AHTW Compact unit and can be supplied as an integral or bolt on arrangement. This is recommended to prevent noise flanking the attenuators, or the need to acoustic lag the ductwork. If the attenuators are positioned away from the noise source (i.e. AHTW Compact), then duct noise breakout will occur, unless the duct is acoustically lagged to the same high standard, as the AHTW Casework. Attenuator Performance Insertion losses for different attenuator lengths serving atmospheric and system side, for both integral or bolt on style. Option 1 Splitter absorbers inbuilt into the AHTW Compact unit Casework which provides a uniform casework appearance, as shown on Figures 2 and 3 on page 47. Option 2 Duct style attenuators with bolt on arrangement as shown below. The splitter absorbers are contained within a galvanized flanged sheet steel duct. Purpose designed bolt on type attenuators have mezz or dolby flanges to match the air handling unit frames, and can have optional inlet/outlet fairings. 44

45 Attenuator Performance 600mm long Model Insertion Loss db Frequency Hz K 2K 4K 8K AHTW 1000/1F/ AHTW 1100/1F/ AHTW 1500/2F/ AHTW 1600/2F/ AHTW 1700/3F/ AHTW 1900/3F/ AHTW 2200/4F/ AHTW 2200/4F/ Attenuator Performance 900mm long Model Insertion Loss db Frequency Hz K 2K 4K 8K AHTW 1000/1F/ AHTW 1100/1F/ AHTW 1500/2F/ AHTW 1600/2F/ AHTW 1700/3F/ AHTW 1900/3F/ AHTW 2200/4F/ AHTW 2200/4F/ Attenuator Performance 1200mm long Model Insertion Loss db Frequency Hz K 2K 4K 8K AHTW 1000/1F/ AHTW 1100/1F/ AHTW 1500/2F/ AHTW 1600/2F/ AHTW 1700/3F/ AHTW 1900/3F/ AHTW 2200/4F/ AHTW 2200/4F/ Attenuator Performance 1500mm long Model Insertion Loss db Frequency Hz K 2K 4K 8K AHTW 1000/1F/ AHTW 1100/1F/ AHTW 1500/2F/ AHTW 1600/2F/ AHTW 1700/3F/ AHTW 1900/3F/ AHTW 2200/4F/ AHTW 2200/4F/

46 Attenuator Performance 1800mm long Model Insertion Loss db Frequency Hz K 2K 4K 8K AHTW 1000/1F/ AHTW 1100/1F/ AHTW 1500/2F/ AHTW 1600/2F/ AHTW 1700/3F/ AHTW 1900/3F/ AHTW 2200/4F/ AHTW 2200/4F/ Attenuator s... AHTW REF W H L WEIGHT (Kg) AHTW 1000/1F/ mm 475mm 600mm 37 AHTW 1100/1F/ mm 505mm 600mm 44 AHTW 1500/2F/ mm 655mm 600mm 64 AHTW 1600/2F/ mm 655mm 600mm 70 AHTW 1700/3F/ mm 805mm 600mm 86 AHTW 1900/3F/ mm 905mm 600mm 107 AHTW 2200/4F/ mm 1000mm 600mm AHTW 2200/4F/ mm 1000mm 600mm AHTW 1000/1F/ mm 475mm 900mm 55 AHTW 1100/1F/ mm 505mm 900mm 66 AHTW 1500/2F/ mm 655mm 900mm 96 AHTW 1600/2F/ mm 655mm 900mm 107 AHTW 1700/3F/ mm 805mm 900mm 129 AHTW 1900/3F/ mm 905mm 900mm 160 AHTW 2200/4F/ mm 1000mm 900mm 187 AHTW 2200/4F/ mm 1000mm 900mm 187 AHTW 1000/1F/ mm 475mm 1200mm 74 AHTW 1100/1F/ mm 505mm 1200mm 88 AHTW 1500/2F/ mm 655mm 1200mm 128 AHTW 1600/2F/ mm 655mm 1200mm 141 AHTW 1700/3F/ mm 805mm 1200mm 172 AHTW 1900/3F/ mm 905mm 1200mm 214 AHTW 2200/4F/ mm 1000mm 1200mm 250 AHTW 2200/4F/ mm 1000mm 1200mm 250 AHTW 1000/1F/ mm 475mm 1500mm 92 AHTW 1100/1F/ mm 505mm 1500mm 110 AHTW 1500/2F/ mm 655mm 1500mm 160 AHTW 1600/2F/ mm 655mm 1500mm 181 AHTW 1700/3F/ mm 805mm 1500mm 215 AHTW 1900/3F/ mm 905mm 1500mm 267 AHTW 2200/4F/ mm 1000mm 1500mm 312 AHTW 2200/4F/ mm 1000mm 1500mm 312 AHTW 1000/1F/ mm 475mm 1800mm 111 AHTW 1100/1F/ mm 505mm 1800mm 132 AHTW 1500/2F/ mm 655mm 1800mm 192 AHTW 1600/2F/ mm 655mm 1800mm 219 AHTW 1700/3F/ mm 805mm 1800mm 258 AHTW 1900/3F/ mm 905mm 1800mm 321 AHTW 2200/4F/ mm 1000mm 1800mm 375 AHTW 2200/4F/ mm 1000mm 1800mm

47 Acoustic Louvre As an option to attenuators or attenuator cowls on the air intake and discharge of external AHTW air handling units, acoustic louvres can be used as an alternative method of reducing the atmospheric side air noise. Four different depths are available with the noise reduction, dimensions and weights as shown on pages 48 Figure 1 and 49. Acoustic louvres have four depths, offering a different insertion loss for each depth. The chart on page 48 gives the noise reduction for each depth 300mm, 400mm, 500mm, 600mm. SIDE ELEVATION FRONT ELEVATION END ELEVATION External AHTW compact with inlet and exhaust acoustic louvres on a Type 4 configuration unit (Fig 1). Figure 2 SIDE ELEVATION FRONT ELEVATION END ELEVATION External AHTW compact with inlet and exhaust acoustic louvres. Also supply and return air integral attenuators on a Type 1 configuration unit (Fig 2). Figure 3 SIDE ELEVATION FRONT ELEVATION END ELEVATION External AHTW compact with inlet and exhaust acoustic louvres. Also supply and return air integral attenuators on a Type 3 configuration unit (Fig 3). 47

48 Acoustic Louvre Performance, s... Acoustic Louvre Performance Frequency Hz K 2K 4K 8K Insertion Loss db 300mm Insertion Loss db 400mm Insertion Loss db 500mm Insertion Loss db 600mm Dimensions & Weights HEIGHT WIDTH DEPTH SIDE VIEW PLAN VIEW WAY WAY WIDTH FRONT VIEW AHTW REF WEIGHT (Kg) W H D AHTW 1000/390/1F/ mm 470mm 300mm AHTW 1000/390/1F/ mm 470mm 400mm AHTW 1000/390/1F/ mm 470mm 500mm AHTW 1000/390/1F/ mm 470mm 600mm AHTW 1000/390/1F/ mm 470mm 300mm AHTW 1000/390/1F/ mm 470mm 400mm AHTW 1000/390/1F/ mm 470mm 500mm AHTW 1000/390/1F/ mm 470mm 600mm 48

49 AHTW REF WEIGHT (Kg) W H D AHTW 1100/680/1F/ mm 505mm 300mm AHTW 1100/680/1F/ mm 505mm 400mm AHTW 1100/680/1F/ mm 505mm 500mm AHTW 1100/680/1F/ mm 505mm 600mm AHTW 1100/680/1F/ mm 505mm 300mm AHTW 1100/680/1F/ mm 505mm 400mm AHTW 1100/680/1F/ mm 505mm 500mm AHTW 1100/680/1F/ mm 505mm 600mm AHTW 1500/390/2F/ mm 655mm 300mm AHTW 1500/390/2F/ mm 655mm 400mm AHTW 1500/390/2F/ mm 655mm 500mm AHTW 1500/390/2F/ mm 655mm 600mm AHTW 1500/390/2F/ mm 655mm 300mm AHTW 1500/390/2F/ mm 655mm 400mm AHTW 1500/390/2F/ mm 655mm 500mm AHTW 1500/390/2F/ mm 655mm 600mm AHTW 1600/680/2F/ mm 655mm 300mm AHTW 1600/680/2F/ mm 655mm 400mm AHTW 1600/680/2F/ mm 655mm 500mm AHTW 1600/680/2F/ mm 655mm 600mm AHTW 1600/680/2F/ mm 655mm 300mm AHTW 1600/680/2F/ mm 655mm 400mm AHTW 1600/680/2F/ mm 655mm 500mm AHTW 1600/680/2F/ mm 655mm 600mm AHT700/390/3F/ mm 805mm 300mm AHT700/390/3F/ mm 805mm 400mm AHT700/390/3F/ mm 805mm 500mm AHT700/390/3F/ mm 805mm 600mm AHT700/390/3F/ mm 805mm 300mm AHT700/390/3F/ mm 805mm 400mm AHT700/390/3F/ mm 805mm 500mm AHT700/390/3F/ mm 805mm 600mm AHT900/680/3F/ mm 905mm 300mm AHT900/680/3F/ mm 905mm 400mm AHT900/680/3F/ mm 905mm 500mm AHT900/680/3F/ mm 905mm 600mm AHT900/680/3F/ mm 905mm 300mm AHT900/680/3F/ mm 905mm 400mm AHT900/680/3F/ mm 905mm 500mm AHT900/680/3F/ mm 905mm 600mm AHT200/390/4F/ mm 1000mm 300mm AHT200/390/4F/ mm 1000mm 400mm AHT200/390/4F/ mm 1000mm 500mm AHT200/390/4F/ mm 1000mm 600mm AHT200/390/4F/ mm 1000mm 300mm AHT200/390/4F/ mm 1000mm 400mm AHT200/390/4F/ mm 1000mm 500mm AHT200/390/4F/ mm 1000mm 600mm AHT200/680/4F/ mm 1000mm 300mm AHT200/680/4F/ mm 1000mm 400mm AHT200/680/4F/ mm 1000mm 500mm AHT200/680/4F/ mm 1000mm 600mm AHT200/680/4F/ mm 1000mm 300mm AHT200/680/4F/ mm 1000mm 400mm AHT200/680/4F/ mm 1000mm 500mm AHT200/680/4F/ mm 1000mm 600mm 49

50 PVHRU Max Quiet Packaged Void Heat Reclaim Unit Benefits Low profile from 300mm deep. Up to 90% Heat Recovery efficiency. Outperforms ErP Heating Coil options. LPHW or electric. Cooling coil options chilled water or DX. Heat pump coil options. TM52 compliant. On board controls available. Filtration to F7. Summer by pass facility. High sound reduction casework tested to BS EN ISO (2010) UKAS certified. High performance backward curved centrifugal fans with low specific fan power. Meets BB101 and BB93 Feb Bottom access. Envirofresh 73 Quiet Low Energy, Air Source Heat Pump System, Silenced with Acoustic Treatment as used in Hundreds of Projects Envirofresh 73 Quiet Benefits Meets TM52 for Schools Meets BB93 Feb 2015 Renewable Energy Source BMS Controls Installed in Unit Factory Pre-Commissioned Heating and Cooling from One Source 50% Less CO 2 Production than a Gas Boiler Low Energy Consumption Reduced Site Installation Cost No External Condensing Units, Pipework or wiring Low Noise Emissions with Silenced Compressors High Specification UKAS Certified Low Breakout Casework No Loss of Heating Capacity at Low Temperatures Room Heating and Cooling available at Reduced Air Volumes Tempered Air Supply without Defrosting No Increase in Footprint over Standard AHUs More Pleasant External Appearance than Condensing Unit or Chiller Installations Out Performs From 300mm Deep 50

51 PVU Quiet Packaged Void Unit Benefits Ultra low profile from 300mm Option bag filters to F7 grade Optional mixing box Matching attenuators Tonal noise control Speed regulation 0>10 Volts Heating coils - LPHW and electric Bottom and side access Fully integrated packaged controls Fan motor isolator fitted as standard High airflow / pressure performance Low specific fan power E.C. fans backward curved Constant pressure Vari-Vol variable volume system available High sound reduction casework tested to BS EN ISO (2010) Suspension brackets with vibration control available Cooling coils chilled water/dx/heatpump available Series VSI/VTI Single & Twin Low Profile Quiet Extract Fan Units low Profile Unit Acoustic Testing Laboratory College of Science & Technology Single Fan Series VSI Benefits Low SFP Tonal noise control Matching attenuators Weatherproof options Low noise breakout Meets BB 93 Feb 2015 High sound reduction casework tested to BS EN ISO (2010) Backward curved, low speed, EC fans Attenuators/cowls and acoustic louvre options Auto change over control system for duty and stand by operation on VTI units Suspension brackets with vibration control available Fan motor isolators fitted as standard Variable volume control system - Vari Vol Twin Fan Series VTI Speed regulation 0>10 Volts Bottom and side access Acoustic Testing Laboratory College of Science & Technology 51

52 Product Range... Single Cased Extract Unit VSI Twin Fan Extract Units VTI and ITU Classvent Units Packaged Void Units PVU Vertical Air Handling Units AH Series Modular AHU s IDG Series Indirect Gas Fired AHU s DG Series Direct Gas Fired AHU s HOSP Health Care Specification Hygiene AHU s AHW Welded Frame and Stainless Units AHTW Heat Reclaim AHU s containing Thermal Wheels AHPHX Heat Recovery AHU s containing Recuperators Freshcool Cooling only Packaged Units Envirofresh Packaged Heat Pump Units Attenuators and Anti-vibration Mounts Acoustic Enclosures and Screens Flat Pack Build and Refurbishment Planned Maintenance and Site Repairs Airflow/Acoustic/Leakage Performance Testing Facility Skidpak Fully Packaged Units Air Handlers Northern Ltd. Alfred Procter House Bute Street, Salford Manchester M50 1DU Other Associated Literature... Sound Advice for Ventilation Plant in Schools. By David Pinchbeck Air Handling Units Acoustic Insulation Performance test Report BSRIA Envirofresh Performance Test Report EcoDesign Directive 2016/18 AUTO CAD 3D BIM REVIT Tel: Fax: Web: The company reserves the right to make any variation in technical specification to the equipment described, or to withdraw or replace products without prior notification or public announcement. Air Handlers Northern Ltd is continually developing and improving its products. All description, illustrations, drawings and specifications in this publication present only general particulars and shall not form part of any contract. All goods are subject to the company s General Conditions of Sale, a copy is available on request.

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