AIREDALE Barkell Therm-X HRFL II Technical Manual
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AIREDALE Barkell Therm-X HRFL II Technical Manual

Mechanical ventilation and heat recovery unit
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MECHANICAL VENTILATION AND HEAT
RECOVERY UNITS
HRFL II CEILING VOID UNITS
TECHNICAL MANUAL
Version 2.3, 24/06/2020

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Summary of Contents for AIREDALE Barkell Therm-X HRFL II

  • Page 1 MECHANICAL VENTILATION AND HEAT RECOVERY UNITS HRFL II CEILING VOID UNITS TECHNICAL MANUAL Version 2.3, 24/06/2020...

  • Page 2: Table Of Contents

    CONTENTS INTRODUCTION PRODUCT OVERVIEW OPERATIONAL DIAGRAM AIRFLOW PERFORMANCE HEAT RECOVERY PERFORMANCE ACOUSTIC PERFORMANCE TECHNICAL DATA OPTIONAL COIL PERFORMANCE DIMENSIONS WEIGHTS PACKAGED DIMENSIONS AND WEIGHTS GENERIC WIRING DIAGRAM CODING KEY ACCESSORIES SPECIFICATION...

  • Page 3: Introduction

    1. INTRODUCTION  4 models covering airflows from 0.03 m Especially designed for false ceiling installation the (108 m ) to 0.47 m (1692 m ) at an Therm-X HRFL II range of units offers a compact ESP of 200Pa and packaged solution of mechanical supply and ...

  • Page 4: Product Overview

    2. PRODUCT OVERVIEW 2.3. ACCESS AND MAINTENANCE 2.1. CONSTRUCTION Access to all the unit compartments is available through the bottom tool operated access panels. The Therm-X HRFL II unit casing is assembled from self-supporting frameless construction, manufactured with double skinned, corrosion resistant, 30mm deep hot dip galvanized sandwich panels (thick.: 0.8mm).
  • Page 5 The fan assembly is installed on a highly rigid The exchanger is Eurovent certified and fully tested to EN308:1997. galvanized support structure mounted with an aerodynamically designed galvanized inlet. The heat recovery section is also provided with fully The EC motors offer intelligent integral control modulating face and by-pass damper to provide electronics allowing soft start-up as well as over- control of the supply air temperature and enable free...
  • Page 6 sensor (supplied with every unit for installation and A fully removable, epoxy coated, galvanized wiring by others on site). condensate tray fitted with a 22mm OD drain connection is provided for condensate collection and The electric pre-heating coil is recommended where disposal.
  • Page 7 2.8. TESTING 2.9. BUILDING REGULATIONS AND ECO- DESIGN DIRECTIVE All models undergo a stringent set of tests to the relevant European standards at an accredited models performance tested laboratory to ensure accurate catalogue data. measurements are performed to obtain the power consumption of the units at several operating points.
  • Page 8 2.10. CONTROLS The controls are ready to go from the moment the unit is turned ON, and can be easily configured All Therm-X MVHR units are factory fitted with a with the help of the handheld controller provided Plug&Play fully integral intelligent control (excludes externally mounted sensors which are package.
  • Page 9 DCV (Demand Controlled Ventilation) mode 2.10.2. TEMPERATURE CONTROL The unit is programmed to adjust the supply airflow The unit is able to control the conditioned space according to the occupancy on the ventilated space temperature based on the temperature of the supply by matching the outdoor air supply to the ventilation or return air.
  • Page 10 Commissioning End user level functions:   Automatic calibration of filters and fans during Adjusting operational parameters – set point commissioning temperature, airflow   Component test mode Activate BOOST MODE   PID tuning Set TIME SCHEDULING  Display alarms and faults in detail Maintenance ...
  • Page 11 2.10.5. CONTROLS SET-UP 2.11. SERVICE SOFTWARE The set-up of the controls on the Therm-X unit can The Therm-X service software allows full control of be performed by one of our experienced the equipment and easy commissioning with a user- commissioning teams. friendly interface.

  • Page 12: Operational Diagram

    3. OPERATIONAL DIAGRAM PLAN VIEW (BOTTOM) EC plenum fan Key: Panel filter - supply F7**, return M5 OTA - Outside air Optional electric pre-heating coil SUP - Supply air Optional post-heating coil - Electric or LPHW* ETA - Extract air Condensate collection and disposal EHA - Exhaust air PHE with bypass damper...

  • Page 13: Airflow Performance

    4. AIRFLOW PERFORMANCE Airflow performance as tested to ISO 5801:2007, Installation category D: HRFL2-040 HRFL2-070  PLEASE NOTE: Performance is shown for standard configuration with F7 supply and M5 extract filters, clean filters, SPI is for both fans For accurate performance data please request a detailed software selection Therm-X MVHRU HRFL II Page 13 of 46 Version 2.3, 24/06/2020...
  • Page 14 Airflow performance as tested to ISO 5801:2007, Installation category D: HRFL2-150 HRFL2-200  PLEASE NOTE: Performance is shown for standard configuration with F7 supply and M5 extract filters, clean filters, SPI is for both fans For accurate performance data please request a detailed software selection Therm-X MVHRU HRFL II Page 14 of 46 Version 2.3, 24/06/2020...

  • Page 15: Heat Recovery Performance

    5. HEAT RECOVERY PERFORMANCE Heat recovery efficiency as tested to EN 308:1997:  PLEASE NOTE: Heat recovery efficiency is measured under the following conditions: Outdoor air conditions: 5°C / 72% Indoor air conditions: 25°C / 28% Efficiencies stated are for dry conditions For accurate heat recovery performance data please request a detailed software selection Therm-X MVHRU HRFL II Page 15 of 46...

  • Page 16: Acoustic Performance

    6. ACOUSTIC PERFORMANCE HRFL2-040 Air Volume Air Volume Casing Breakout @ 3m [Pa] [W.(l.s) [dB(A)] 0.09 1.90 0.07 1.67 0.05 1.62 0.11 1.90 0.08 1.52 0.06 1.32 0.13 1.90 0.09 1.40 0.06 1.07 0.13 1.84 0.10 1.26 0.07 0.85 HRFL2-070 Air Volume Air Volume Casing Breakout @ 3m...
  • Page 17 HRFL2-150 Air Volume Air Volume Casing Breakout @ 3m [Pa] [W.(l.s) [dB(A)] 0.22 1.90 0.17 1.76 0.11 1.77 1035 0.29 1.90 0.22 1.60 0.14 1.42 1200 0.33 1.90 0.25 1.47 0.17 1.16 1339 0.37 1.90 1004 0.28 1.37 0.19 0.95 HRFL2-200 Air Volume Air Volume...

  • Page 18: Technical Data

    7. TECHNICAL DATA 7.1. ELECTRICAL CHARACTERISTICS Models without electric pre-heating coil and… without coil / with water heating coil / with WCO coil / with DX coil Unit Voltage Frequency Power Input Full load current Phase Type [Hz] [kW] per phase [A] HRFL2-040 230 V 50 Hz...
  • Page 19 Electric post heating coil Unit Voltage Frequency Phase Power Input [kW] Type [Hz] HRFL2-040 230 V 50 Hz 0.80 HRFL2-070 230 V 50 Hz 1.40 HRFL2-150 230 V 50 Hz 2.70 HRFL2-200 400 V 50 Hz 4.80 Electric pre heating coil Unit Voltage Frequency...

  • Page 20: Optional Coil Performance

    8. OPTIONAL COIL PERFORMANCE LPHW Without Heat Recovery With Heat Recovery Unit Volume Volume Type Air On Air Off Capacity Fluid Pd Air On Air Off Capacity Fluid Pd [kW] [kPa] [kW] [kPa] HRFL2-040 0.11 -5.0 18.5 16.7 32.5 HRFL2-070 0.17 -5.0 20.3...
  • Page 21 Heating Without Heat Recovery With Heat Recovery Unit Volume Volume Type Air On Air Off Capacity Fluid Pd Air On Air Off Capacity Fluid Pd [kW] [kPa] [kW] [kPa] HRFL2-040 0.11 28.5 31.0 16.7 35.3 11.0 HRFL2-070 0.17 29.8 13.0 17.4 36.2 HRFL2-150...

  • Page 22: Dimensions

    9. DIMENSIONS 9.1. UNIT Unit Ø drain con. Type HRFL-040 780 670 1190 310 300 1120 700 485 21 250 150 274 174 166 166 332 332 166 166 HRFL-070 1080 970 1400 310 300 1330 1000 590 21 300 200 324 224 242 242 517 517 242 242 HRFL-150 1385 1270 1700 390 380 1630 1305 720 21 500 250 524 274 323 323 625 625 323 323 HRFL-200 1710 1600 2000 470 460 1930 1630 902 21 600 300 624 324 433 433 735 735 433 433 Unit...
  • Page 23 9.2. EXTERNAL COOLING MODULE (WCO/DX) Unit ø DD EE AB AA drain con. Type HRFL2-040 334 470 295 250 150 274 174 366 397 HRFL2-070 484 470 300 300 200 324 224 516 547 HRFL2-150 636 470 380 500 250 524 274 668 699 HRFL2-200 800 470 460 600 300 624 324 832 863 Unit...

  • Page 24: Weights

    10. WEIGHTS Weight of unit [kg] Without coils Unit With electric post With LPHW post Type With WCO module With DX module With electric pre- heater heater heater HRFL2-040 HRFL2-070 HRFL2-150 HRFL2-200 Weight of external cooling module Unit [kg] Type WCO module DX module HRFL2-040...

  • Page 25: Generic Wiring Diagram

    12. GENERIC WIRING DIAGRAM Therm-X MVHRU HRFL II Page 25 of 46 Version 2.3, 24/06/2020 Technical Manual...
  • Page 26 TERMINAL DESCRIPTION TERMINAL DESCRIPTION LF1 – INLET DAMPER (output L – open, 230V/2A AC) HEAT PUMP CONTROL (output - ON/OFF, maximum load 230VAC A (5-6) B (3-4) LF2 – OUTLET DAMPER (output L- open, 230V/2A AC) / 2A) HEAT PUMP COOL / HEAT settable (CO = NC/NO - DX = settable, A (7-8) RUN CONTACT (output - NO/NC (settable), maximum load 230VAC / 2A) B (7-8)

  • Page 27: Coding Key

    13. CODING KEY HRFL2 HRFL2 Product Type HRFL2 Separator Product Size Installation Horizontal/Ceiling Void Access Left Heat Recovery Counter flow PHE with Bypass Fans EC Fans Filtration Supply: F7, Exhaust: M5 Separator None Pre-Heater Electric None Post Heater Electric LPHW Controls Superior Separator...

  • Page 28: Accessories

    14. ACCESSORIES All Therm-X units are available with a wide range of mechanical and control accessories to facilitate installation and enhance the product functionality. 14.1. EXTERNAL DUCT MOUNTED COOLING MODULE External heating/cooling module for HRFL II units. Can be fitted with a water changeover (WCO) or direct expansion (DX) coil. The module includes integral air and water temperature sensors with flying leads for connection to the unit control panel.
  • Page 29 14.3. MOTORIZED RECTANGULAR SHUT-OFF DAMPERS The MLKR/S rectangular damper can be unit or duct mounted to allow automatic shutting of the atmospheric inlet/outlet in order to prevent drafts when the unit is not in operation. The flanged damper frame is manufactured of galvanized steel. The blades are manufactured of aluminium.
  • Page 30 14.5. CIRCULAR BACKDRAFT DAMPERS The RSKR-Z damper duct mounted to allow automatic shutting of the atmospheric inlet/outlet in order to prevent drafts when the unit is not in operation. The damper manufactured of galvanized steel with an internal rubber gasket. Backdraft Damper Unit Type Order Reference...
  • Page 31 14.6. CIRCULAR DUCT ATTENUATORS The SPTGLX and SPTGLP circular sound attenuator is designed for reducing the noise propagated through the HVAC ducting connected to the unit. The attenuator comes in 2 standard lengths of 600mm and 900mm respectively and can be fitted with central pods with aerodynamic fairings.
  • Page 32 14.7. RECTANGULAR DUCT ATTENUATORS The SPTREC, SPTBRL and SPTBUD rectangular straight or bend sound attenuator is designed for reducing the noise propagated through the HVAC ducting connected to the unit. The attenuator comes in 3 standard lengths of 900mm, 1200mm and 1500mm respectively. The 25mm deep double skinned housing is manufactured of pre-galvanized steel with stiffened internals and proprietary flanges.
  • Page 33 14.8. LPHW DUCT HEATERS The VOK-01 water heater is designed for heating or re-heating the supply air in HVAC systems. It can be used for pre-heating or re-heating air from the Therm-X unit’s heat recovery device when the optional in-built heater capacity is not sufficient to achieve the required temperature or when closer temperature control of the room is required.
  • Page 34  PLEASE NOTE: The heater is supplied as a standalone product Heater supplied loose for fitting and wiring on site by others Power and control to the heater must be provided by an external source The Therm-X integral control panel is capable of modulating the heater output and guarantees that it only operates when airflow is present.
  • Page 35 14.10. CONDENSATE TRAP Condensate trap with integral foul air infiltration prevention system for installation recessed or flush mounted on the wall. The trap cover is transparent for easy monitoring of the water level. Unit Trap Type Order Reference SK-HL138  PLEASE NOTE: Use of a condensate trap is only recommended where gravity assisted condensate collection is achievable Accessory is supplied loose for fitting on site by others...
  • Page 36 14.12. AIR QUALITY SENSORS The 0-10V output signal of these sensors can be connected to the Therm-X unit controller for modulation in the DCV mode. Room CO sensor Room sensor for measurement of the CO concentration on ventilated spaces. Duct CO sensor Duct CO sensor for measurement of the CO...
  • Page 37 14.13. MOTION SENSOR Room passive infrared motion sensor for occupancy detection. When something enters into the controlled space, this sensor detects heat emission from bodies and switches the contacts on or off. The sensor can be connected to the Therm-X unit controller turning the unit on or off accordingly. The sensor has a detection range of 12 meters at an 90°...
  • Page 38 14.15. VALVES AND ACTUATORS A range of 2-way, 3-way and PIC valves for internal and external installation is available. Please contact our offices for additional information. Chilled or Hot Water Coil Order Reference CCV 2 Way 2 Port CCV 3 Way 3 Port CCV 2 Way 2 Port CCV 3 Way 3 Port Unit Type...

  • Page 39: Specification

    15. SPECIFICATION Therm-X HRFL II MVHR Unit Specification 1. Construction 1.1. The unit shall generally comprise of an accessible enclosure, high efficient counter flow plate heat exchanger equipped with face & bypass dampers, condensate tray, supply & extract fans, supply & extract filters, optional integral electric pre heating coil and/or electric or water post heating coil and integral plug &...
  • Page 40 3. Access and maintenance 3.1. Access to all the unit compartments shall be available through the bottom tool operated access panels as standard. 3.2. All the access panels shall be fully removable allowing access to the fan, filter and ancillary coil sections and providing access for periodic inspection.
  • Page 41 6. Counter flow plate heat exchanger 6.1. The unit shall be equipped with highly efficient counter flow air to air plate heat exchanger, exceeding the 2018 requirements of regulation 1253/2014 of the Eco-design directive for ventilation units. 6.2. The heat exchanger finned area and casing shall be manufactured from high thermal transmittance and corrosion resistant aluminium.
  • Page 42 7.3. The unit shall be optionally available with water changeover coil (WCO) or direct expansion (DX) coils to allow cooling and/or heating operation. A plastic droplet eliminator shall be installed in the coil and the coil section shall be equipped with a fully removable, epoxy coated, galvanized condensate tray fitted with a 22mm OD drain connection for condensate collection and disposal.
  • Page 43 9. Controls 9.1. The units shall be equipped with a factory fitted, fully integral intelligent control package to provide control of the ventilation output, supply and room temperature and indoor air quality. 9.2. The factory fitted controls shall include temperature sensors (fresh, supply and return air), antifreeze sensor (extract air), digital pressure sensors for the filters, fans and supply duct, water/refrigerant temperature sensors (only versions with water or direct expansion coils) and all the required electrics and electronic parts including the mains switch isolator.
  • Page 44 9.12. The unit shall be able to operate in BOOST MODE overriding the unit operating settings via the handheld controller or an external contact. This mode shall also be available when the unit is on standby. 9.13. The unit shall be able to operate in a TIME SCHEDULING mode on a weekly and yearly regime. The user shall be able to define up to 6 time blocks per day and/or 6 date blocks per year with specific settings for each time block.
  • Page 45 9.25. The controls shall include alarm signalisation whenever a failure of fan, filter or sensor occurs. Emergency overheating alarms shall also be available for the electric heaters if installed. The alarms shall be displayed on the handheld controller and provide information about the cause of the error. 9.26.
  • Page 46 Barkell Ltd Unit 22, No. 1 Industrial Estate Consett County Durham DH8 6SZ Tel.: +44 (0)1207 590 575 Email: ahu@barkell.co.uk Web: https://www.barkell.co.uk...

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