AIREDALE OptiChill FreeCool Technical Manual
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AIREDALE OptiChill FreeCool Technical Manual

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OptiChill™ FreeCool
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Summary of Contents for AIREDALE OptiChill FreeCool

  • Page 1: About Airedale Products & Customer Services

    OptiChill™ FreeCool Technical Manual...
  • Page 2 The development of Airedale products and services is continuous and the information in this document may not be up to date. It is important to check the current position with AIAC Ltd at the address stated. This document is not part of a contract or licence unless expressly agreed.

  • Page 3: Warranty

    (excluding costs for any specialist access or lifting equipment that must be ordered by the customer). Any spare part supplied by Airedale under warranty shall be warranted for the unexpired period of the warranty or 3 months from delivery, whichever period is the longer.

  • Page 4: Health And Safety

    Equipment maintaining and commissioning equipment. Refrigerant Warning The Airedale OptiChill Freecool uses R134a refrigerant which requires careful attention to proper storage and handling procedures. Use only manifold gauge sets designed for use with R134a refrigerant. Use only refrigerant recovery units and cylinders designed for R134a refrigerant.

  • Page 5: Environmental Considerations

    Chillers OptiChill™ FreeCool Environmental Considerations Freeze Protection Airedale recommends the following actions to help protect the unit during low flow and low ambient temperature operation. Units with supply water temperatures below +5°C  Glycol is recommended when a supply water temperature of +5°C or below is required or when static water can be exposed to freezing temperatures.

  • Page 6: Table Of Contents

    OptiChill™ FreeCool Chillers Contents About Airedale Products & Customer Services ..............1 Warranty ............................. 3 Active Cabinet Exhaust Health and Safety ........................4 Environmental Considerations ....................5 Freeze Protection ........................5 Specifiers Guide ......................... 7 Unit identification ........................7 Introduction ..........................7 Range Overview .........................

  • Page 7: Specifiers Guide

    (L) Large Evaporator Code Introduction The Airedale range of OptiChill Freecool liquid screw chillers covers the nominal capacity range 750kW to 1250kW in over 180 models sizes. The technical manual covers only 40 units showing a variety of configurations. Further information can be obtained from your sales representative.

  • Page 8: Range Overview

    OptiChill™ FreeCool Chillers Range Overview Active Cabinet Exhaust Regular Noise levels Max Duty (DX)* Max EER** Max ESEER** Max Free Cooling* Unit Nomenclature OFC087R16-77ML2 OFC077R16-66ML1 OFC077R16-66ML1 OFC087R16-77ML2 DX Duty /FC Duty (kW) 2.94 2.84 ESEER 3.29 3.26 3.26 3.15 16 Fan Free cooling Duty (kW) Fan Selection Small EC...
  • Page 9 Chillers OptiChill™ FreeCool Range Overview Extra Quiet Noise Levels Max Duty (DX)* Max EER** Max ESEER** Max Free Cooling* Metric Unit Nomenclature OFC083X16-77ML2 OFC074X16-66HL1 OFC074X16-66ML1 OFC083X16-77HL2 DX Duty /FC Duty (kW) 2.66 2.79 2.59 3.23 ESEER 2.88 3.14 2.82 16 Fan Free cooling Duty (kW) Fan Selection Small EC...

  • Page 10: Range Layout

    Range Layout 2 Row Free Cooling Regular Quiet AC Fans EC Fans HA EC Fans ΔTs Noise Variant No. Fans Water Temp Nomenclature Duty (kW) ESEER Duty (kW) ESEER Duty (kW) ESEER OFC076R16-66MS1 2.84 2.92 753.7 2.89 3.25 2.89 3.23 OFC081R16-76MS2 2.83 2.90...
  • Page 11 2 Row Free Cooling Regular Quiet AC Fans EC Fans HA EC Fans ΔTs Noise Variant No. Fans Water Temp Nomenclature Duty (kW) ESEER Duty (kW) ESEER Duty (kW) ESEER OFC077R18-66MS1 2.88 2.93 758.9 2.95 3.31 2.95 3.29 OFC082R18-76MS2 2.89 2.91 816.0 2.95...
  • Page 12 2 Row Free Cooling Regular Quiet AC Fans EC Fans HA EC Fans ΔTs Noise Variant No. Fans Water Temp Nomenclature Duty (kW) ESEER Duty (kW) ESEER Duty (kW) ESEER OFC077R18-66HS1 2.88 2.85 755.9 2.96 3.22 2.96 3.20 OFC082R18-76HS2 2.85 2.81 809.0 2.92...
  • Page 13 2 Row Free Cooling Regular Quiet AC Fans EC Fans HA EC Fans ΔTs Noise Variant No. Fans Water Temp Nomenclature Duty (kW) ESEER Duty (kW) ESEER Duty (kW) ESEER OFC078R20-66MS1 2.90 2.94 762.6 3.00 3.37 3.00 3.34 OFC083R20-76MS2 2.91 2.92 820.2 3.00...
  • Page 14 2 Row Free Cooling Regular Quiet AC Fans EC Fans HA EC Fans ΔTs Noise Variant No. Fans Water Temp Nomenclature Duty (kW) ESEER Duty (kW) ESEER Duty (kW) ESEER OFC078R20-66HS1 2.90 2.86 759.5 3.01 3.27 3.00 3.24 OFC083R20-76HS2 2.88 2.81 813.0 2.96...
  • Page 15 2 Row Free Cooling Regular Quiet AC Fans EC Fans HA EC Fans ΔTs Noise Variant No. Fans Water Temp Nomenclature Duty (kW) ESEER Duty (kW) ESEER Duty (kW) ESEER OFC078R22-66MS1 2.90 2.94 765.2 3.04 3.41 3.04 3.38 OFC084R22-76MS2 2.92 2.92 823.0 3.04...
  • Page 16 2 Row Free Cooling Regular Quiet AC Fans EC Fans HA EC Fans ΔTs Noise Variant No. Fans Water Temp Nomenclature Duty (kW) ESEER Duty (kW) ESEER Duty (kW) ESEER OFC078R22-66HS1 2.91 2.86 762.0 3.05 3.31 3.04 3.28 OFC084R22-76HS2 2.88 2.82 815.7 3.00...

  • Page 17: Row Free Cooling Extra Quiet

    2 Row Free Cooling Extra Quiet AC Fans EC Fans HA EC Fans ΔTs Noise Variant No. Fans Water Temp Nomenclature Duty (kW) ESEER Duty (kW) ESEER Duty (kW) ESEER OFC073X16-66MS1 2.69 2.87 723.4 2.78 3.21 2.76 3.19 OFC078X16-76MS2 2.67 2.85 770.4 2.75...
  • Page 18 2 Row Free Cooling Extra Quiet AC Fans EC Fans HA EC Fans ΔTs Noise Variant No. Fans Water Temp Nomenclature Duty (kW) ESEER Duty (kW) ESEER Duty (kW) ESEER OFC075X18-66HS1 2.78 2.82 735.7 2.90 3.20 2.88 3.18 OFC080X18-76HS2 2.73 2.78 780.9 2.84...
  • Page 19 2 Row Free Cooling Extra Quiet AC Fans EC Fans HA EC Fans ΔTs Noise Variant No. Fans Water Temp Nomenclature Duty (kW) ESEER Duty (kW) ESEER Duty (kW) ESEER OFC076X20-66MS1 2.82 2.91 748.3 2.97 3.35 2.95 3.33 OFC081X20-76MS2 2.82 2.89 798.8 2.95...
  • Page 20 2 Row Free Cooling Extra Quiet AC Fans EC Fans HA EC Fans ΔTs Noise Variant No. Fans Water Temp Nomenclature Duty (kW) ESEER Duty (kW) ESEER Duty (kW) ESEER OFC076X20-66HS1 2.83 2.83 746.1 2.97 3.25 2.96 3.23 OFC081X20-76HS2 2.79 2.79 792.8 2.92...
  • Page 21 2 Row Free Cooling Extra Quiet AC Fans EC Fans HA EC Fans ΔTs Noise Variant No. Fans Water Temp Nomenclature Duty (kW) ESEER Duty (kW) ESEER Duty (kW) ESEER OFC076X22-66MS1 2.85 2.92 756.6 3.02 3.40 3.01 3.37 OFC082X22-76MS2 2.86 2.90 808.4 3.01...
  • Page 22 2 Row Free Cooling Extra Quiet AC Fans EC Fans HA EC Fans ΔTs Noise Variant No. Fans Water Temp Nomenclature Duty (kW) ESEER Duty (kW) ESEER Duty (kW) ESEER OFC076X22-66HS1 2.86 2.84 754.2 3.03 3.30 3.02 3.27 OFC082X22-76HS2 2.82 2.79 801.9 2.98...

  • Page 23: Row Free Cooling Regular Quiet

    3 Row Free Cooling Regular Quiet AC Fans EC Fans HA EC Fans ΔTs Noise Variant No. Fans Water Temp Nomenclature Duty (kW) ESEER Duty (kW) ESEER Duty (kW) ESEER OFC076R16-66MS1 2.79 2.87 2.85 3.19 2.84 3.18 OFC081R16-76MS2 2.79 2.86 2.84 3.15 2.84...
  • Page 24 3 Row Free Cooling Regular Quiet AC Fans EC Fans HA EC Fans ΔTs Noise Variant No. Fans Water Temp Nomenclature Duty (kW) ESEER Duty (kW) ESEER Duty (kW) ESEER OFC077R18-66MS1 2.84 2.89 2.91 3.26 2.91 3.24 OFC082R18-76MS2 2.84 2.87 2.90 3.21 2.90...
  • Page 25 3 Row Free Cooling Coil Regular Quiet AC Fans EC Fans HA EC Fans ΔTs Noise Variant No. Fans Water Temp Nomenclature Duty (kW) ESEER Duty (kW) ESEER Duty (kW) ESEER OFC077R18-66HS1 2.84 2.81 2.92 3.17 2.91 3.15 OFC082R18-76HS2 2.81 2.77 2.87 3.09...
  • Page 26 3 Row Free Cooling Regular Quiet AC Fans EC Fans HA EC Fans ΔTs Noise Variant No. Fans Water Temp Nomenclature Duty (kW) ESEER Duty (kW) ESEER Duty (kW) ESEER OFC078R20-66MS1 2.86 2.89 2.96 3.31 2.95 3.29 OFC083R20-76MS2 2.87 2.88 2.95 3.26 2.95...
  • Page 27 3 Row Free Cooling Coil Regular Quiet AC Fans EC Fans HA EC Fans ΔTs Noise Variant No. Fans Water Temp Nomenclature Duty (kW) ESEER Duty (kW) ESEER Duty (kW) ESEER OFC078R20-66HS1 2.87 2.82 2.96 3.22 2.96 3.19 OFC083R20-76HS2 2.84 2.77 2.92 3.14...
  • Page 28 3 Row Free Cooling Coil Regular Quiet AC Fans EC Fans HA EC Fans ΔTs Noise Variant No. Fans Water Temp Nomenclature Duty (kW) ESEER Duty (kW) ESEER Duty (kW) ESEER OFC078R22-66MS1 2.87 2.90 3.00 3.36 2.99 3.33 OFC084R22-76MS2 2.88 2.88 2.99 3.31...
  • Page 29 3 Row Free Cooling Coil Regular Quiet AC Fans EC Fans HA EC Fans ΔTs Noise Variant No. Fans Water Temp Nomenclature Duty (kW) ESEER Duty (kW) ESEER Duty (kW) ESEER OFC078R22-66HS1 2.87 2.82 3.00 3.26 3.00 3.23 OFC084R22-76HS2 2.85 2.77 2.96 3.18...

  • Page 30: Row Free Cooling Coil Extra Quiet

    3 Row Free Cooling Coil Extra Quiet AC Fans EC Fans HA EC Fans ΔTs Noise Variant No. Fans Water Temp Nomenclature Duty (kW) ESEER Duty (kW) ESEER Duty (kW) ESEER OFC073X16-66MS1 2.63 2.82 2.71 3.15 2.70 3.13 OFC078X16-76MS2 2.61 2.80 2.69 3.10...
  • Page 31 3 Row Free Cooling Coil Extra Quiet AC Fans EC Fans HA EC Fans ΔTs Noise Variant No. Fans Water Temp Nomenclature Duty (kW) ESEER Duty (kW) ESEER Duty (kW) ESEER OFC075X18-66MS1 2.71 2.85 2.83 3.23 2.81 3.21 OFC080X18-76MS2 2.70 2.83 2.81 3.18...
  • Page 32 3 Row Free Cooling Coil Extra Quiet AC Fans EC Fans HA EC Fans Noise Variant No. Fans Water Temp ΔTs Nomenclature Duty (kW) ESEER Duty (kW) ESEER Duty (kW) ESEER OFC076X20-66MS1 2.77 2.86 2.91 3.30 2.90 3.27 OFC081X20-76MS2 2.77 2.85 2.89 3.24...
  • Page 33 3 Row Free Cooling Coil Extra Quiet AC Fans EC Fans HA EC Fans Noise Variant No. Fans Water Temp ΔTs Nomenclature Duty (kW) ESEER Duty (kW) ESEER Duty (kW) ESEER OFC076X22-66MS1 2.81 2.87 2.97 3.35 2.96 3.32 OFC082X22-76MS2 2.81 2.85 2.96 3.29...
  • Page 34 Chillers OptiChill Freecool Standard Features Refrigeration and Mechanical         Compressors - Screw         Dual Maintainable Pressure Relief valve Parallel Condenser Coils – Round tube plate fin ...

  • Page 35: General Description

    Class O fire rating and the material is UV resistant. Water inlet and outlet connections are of grooved type pipe and coupling assembly, optional flanged connections available on request, please consult Airedale. An immersion heater and thermostat protect the evaporator against freeze up in ambient temperatures down to -20°C.
  • Page 36 OptiChill Freecool Chillers Fan & Motor Assembly AC Fan Motor Sickle bladed fan assemblies with integral long bellmouth and fingerproof grille; Active Cabinet Exhaust incorporate external rotor AC motor technology, capable of highly accurate discreet speed control and discharges air vertically. The fans offer maximum airflow performance while keeping sound levels to a minimum.

  • Page 37: Controls

    Chillers OptiChill Freecool General Description Standard Features Controls As standard, the microprocessor controller can provide 8 stages of capacity control. Optionally, the controller is designed to provide capabilities for;  Building Management Systems (BMS)  Sequencing (Master/Slave and Run/Standby) to meet all your system requirements, please specify at order.

  • Page 38: General Description

    OptiChill Freecool Chillers Controls Active Cabinet Exhaust General description The microprocessor controller offers powerful analogue and digital control to meet a wide range of monitoring and control features including a real time clock and Industry standard communication port and network connections.

  • Page 39: Temperature Control

    OptiChill Freecool Controls Temperature control Airedale recognises that all chiller applications are different but the OptiChill is based upon Constant Supply Temperature. The onboard microprocessor has the capability of satisfying either control requirement as illustrated below. Using the Airedale Variable Supply Temperature control scheme, energy savings are available when compared with previous schemes and that of the Constant Supply Temperature application.

  • Page 40: Monitoring

    Password Protection The control system integrity can be maintained by restricting access with a password PIN number. (as standard 4648) IMPORTANT: To change the PIN number; please contact Airedale at time of order CAUTION with the preferred 4 digit number.
  • Page 41 Up to 8 units can be sequenced. Included within this package is a site visit by Airedale Control Specialists to set up multiple unit sequence control. The chiller sequence manager is supplied as a separate control panel to be mounted remotely indoors, such as a plant room.
  • Page 42 OptiChill Freecool Chillers General Description Optional Extras Active Cabinet Exhaust Pump - AC Motor - Fixed A factory fitted in line single or run/standby pump package is available in a standard or Speed larger external head, please specify at order.
  • Page 43 Allows the chilled water setpoint to be adjusted via an external 0-10V signal. BMS Interface Card Enables controlled chillers to be interfaced with most BMS, including Airedale’s own pCOWeb, factory fitted, please contact Airedale. For further details, please refer to Controls, on page 44. Chillers Technical Manual : 7197700 v1.5.0 10/15...
  • Page 44 A wide range of protocols can be accommodated through the use of interface devices. Available as a standard option are: ModBus / Jbus, Carel. For interfaces such as SNMP, LonWorks, Metasys and BACnet, please contact Airedale. Also available is Airedale’s own supervisory plug-in BMS card pCOWeb.

  • Page 45: Design Features & Information

    Chillers OptiChill Freecool Design Features & Information Pipework Design The unit refrigeration piping has been specifically designed to ensure the absolute minimum pressure loss. Sizing and layout of pipes is such that good oil circulation is achieved and neither performance nor efficiency is compromised.

  • Page 46: Economiser

    OptiChill Freecool Chillers Design Features & Information Economiser The addition of an economiser circuit provides increased cooling and enhances EER, Active Cabinet Exhaust in full and part load operation. Sub-cooled liquid is expanded using a dedicated EEV to ‘ medium’ pressure and passed through one side of a plate heat exchanger.

  • Page 47: Pumps Options

    Chillers OptiChill Freecool Design Features & Information Pumps options A variety of pump options to suit a wide range of applications is available: Factory fitted in line as a single pump or run/standby configuration and available in standard and larger nominal external head pressures.

  • Page 48: Electronic Expansion Valves (Eev)

    OptiChill Freecool Chillers Design Features & Information Electronic expansion valves (EEV) Active Cabinet Exhaust Thermostatic Expansion Whilst offering versatile control at full design duty of the unit, TEVs do not automatically Valves (TEV) optimise themselves to all operating conditions. Therefore, if the unit is operating at 40%...

  • Page 49: Star/Delta Starting Of 3 Phase Compressors

    Chillers OptiChill Freecool Design Features & Information Star/delta starting of 3 phase compressors Open Transition Starting In conventional open transition Star/Delta starting, a run up time of 3 seconds is required, however, a changeover delay of approximately 50 ms is usually observed when switching over from Star to Delta motor connections.

  • Page 50: Glycol

    OptiChill Freecool Chillers Design Features & Information Glycol Active Cabinet Exhaust Ethylene Glycol Specific Heat Capacity Glycol Percentage / Freezing Point Temperature °C 0% / 0°C 20% / -7.8°C 25% / -10.7°C 30% / -14.1°C 35% / -17.9°C 40% / -22.3°C 4.210...

  • Page 51: Minimum System Water Volume

    Chillers OptiChill Freecool Minimum system water volume Where the system permanent heat load is known, the minimum water volume in litres V METHOD 1 (Preferred Method) Water Flow Rate (litres/min) Minimum Compressor Run Time (min) Chiller Loading Factor Chiller Loading Factor Minimum Turndown (kW) x 1.2...

  • Page 52: Performance Data

    For minimum ambient, it is assumed that adequate freeze protection is fitted. Typical part load The following graph gives a general indication of the effect of reduced load on the performance of the unit, for specific performance details, please contact Airedale. characteristics 100%...

  • Page 53: Glycol Data

    The source data must be at 20% Glycol for the correction factors to be valid. CAUTION This data is for a guide only. Please contact Airedale for accurate figures. Where: Output...

  • Page 54: Mechanical Data - Regular Quiet

    (3) Based on standard unit without options, operating weight includes refrigerant charge and water volume. For unit weights with waterside options fitted please refer to Airedale. (4) For minimum system water volume calculation, refer to Design Features & Information - Minimum System Water Volume Calculations.
  • Page 55 (3) Based on standard unit without options, operating weight includes refrigerant charge and water volume. For unit weights with waterside options fitted please refer to Airedale. (4) For minimum system water volume calculation, refer to Design Features & Information - Minimum System Water Volume Calculations.
  • Page 56 (3) Based on standard unit without options, operating weight includes refrigerant charge and water volume. For unit weights with waterside options fitted please refer to Airedale. (4) For minimum system water volume calculation, refer to Design Features & Information - Minimum System Water Volume Calculations.
  • Page 57 (3) Based on standard unit without options, operating weight includes refrigerant charge and water volume. For unit weights with waterside options fitted please refer to Airedale. (4) For minimum system water volume calculation, refer to Design Features & Information - Minimum System Water Volume Calculations.
  • Page 58 (3) Based on standard unit without options, operating weight includes refrigerant charge and water volume. For unit weights with waterside options fitted please refer to Airedale. (4) For minimum system water volume calculation, refer to Design Features & Information - Minimum System Water Volume Calculations.
  • Page 59 (3) Based on standard unit without options, operating weight includes refrigerant charge and water volume. For unit weights with waterside options fitted please refer to Airedale. (4) For minimum system water volume calculation, refer to Design Features & Information - Minimum System Water Volume Calculations.
  • Page 60 (3) Based on standard unit without options, operating weight includes refrigerant charge and water volume. For unit weights with waterside options fitted please refer to Airedale. (4) For minimum system water volume calculation, refer to Design Features & Information - Minimum System Water Volume Calculations.
  • Page 61 (3) Based on standard unit without options, operating weight includes refrigerant charge and water volume. For unit weights with waterside options fitted please refer to Airedale. (4) For minimum system water volume calculation, refer to Design Features & Information - Minimum System Water Volume Calculations.
  • Page 62 (3) Based on standard unit without options, operating weight includes refrigerant charge and water volume. For unit weights with waterside options fitted please refer to Airedale. (4) For minimum system water volume calculation, refer to Design Features & Information - Minimum System Water Volume Calculations.
  • Page 63 (3) Based on standard unit without options, operating weight includes refrigerant charge and water volume. For unit weights with waterside options fitted please refer to Airedale. (4) For minimum system water volume calculation, refer to Design Features & Information - Minimum System Water Volume Calculations.

  • Page 64: Mechanical Data - Extra Quiet

    (3) Based on standard unit without options, operating weight includes refrigerant charge and water volume. For unit weights with waterside options fitted please refer to Airedale. (4) For minimum system water volume calculation, refer to Design Features & Information - Minimum System Water Volume Calculations.
  • Page 65 (3) Based on standard unit without options, operating weight includes refrigerant charge and water volume. For unit weights with waterside options fitted please refer to Airedale. (4) For minimum system water volume calculation, refer to Design Features & Information - Minimum System Water Volume Calculations.
  • Page 66 (3) Based on standard unit without options, operating weight includes refrigerant charge and water volume. For unit weights with waterside options fitted please refer to Airedale. (4) For minimum system water volume calculation, refer to Design Features & Information - Minimum System Water Volume Calculations.
  • Page 67 (3) Based on standard unit without options, operating weight includes refrigerant charge and water volume. For unit weights with waterside options fitted please refer to Airedale. (4) For minimum system water volume calculation, refer to Design Features & Information - Minimum System Water Volume Calculations.
  • Page 68 (3) Based on standard unit without options, operating weight includes refrigerant charge and water volume. For unit weights with waterside options fitted please refer to Airedale. (4) For minimum system water volume calculation, refer to Design Features & Information - Minimum System Water Volume Calculations.
  • Page 69 (3) Based on standard unit without options, operating weight includes refrigerant charge and water volume. For unit weights with waterside options fitted please refer to Airedale. (4) For minimum system water volume calculation, refer to Design Features & Information - Minimum System Water Volume Calculations.
  • Page 70 (3) Based on standard unit without options, operating weight includes refrigerant charge and water volume. For unit weights with waterside options fitted please refer to Airedale. (4) For minimum system water volume calculation, refer to Design Features & Information - Minimum System Water Volume Calculations.
  • Page 71 (3) Based on standard unit without options, operating weight includes refrigerant charge and water volume. For unit weights with waterside options fitted please refer to Airedale. (4) For minimum system water volume calculation, refer to Design Features & Information - Minimum System Water Volume Calculations.
  • Page 72 (3) Based on standard unit without options, operating weight includes refrigerant charge and water volume. For unit weights with waterside options fitted please refer to Airedale. (4) For minimum system water volume calculation, refer to Design Features & Information - Minimum System Water Volume Calculations.
  • Page 73 (3) Based on standard unit without options, operating weight includes refrigerant charge and water volume. For unit weights with waterside options fitted please refer to Airedale. (4) For minimum system water volume calculation, refer to Design Features & Information - Minimum System Water Volume Calculations.

  • Page 74: Electrical Data Regular Quiet

    OptiChill Freecool Chillers Electrical Data Regular Quiet Active Cabinet Exhaust OFC076R16-66HS1 OFC076R16-66MS1 OFC081R16-76MS2 Notes Units Unit Data Nominal Run Amps (1) Maximum Start Amps Recommended Mains Fuse Size Mains Supply 400 V 3 PH 50 Hz 400 V 3 PH 50 Hz...
  • Page 75 Chillers OptiChill Freecool Electrical Data Regular Quiet Continued Notes Units OFC081R16-76ML2 OFC087R16-77ML2 OFC077R18-66HS1 Unit Data Nominal Run Amps (1) Maximum Start Amps Recommended Mains Fuse Size Mains Supply 400 V 3 PH 50 Hz 400 V 3 PH 50 Hz...
  • Page 76 OptiChill Freecool Chillers Electrical Data Regular Quiet Continued Active Cabinet Exhaust OFC083R18-76ML2 OFC091R18-87HS4 OFC095R18-88MS4 Notes Units Unit Data Nominal Run Amps (1) Maximum Start Amps 1099 Recommended Mains Fuse Size Mains Supply 400 V 3 PH 50 Hz 400 V 3 PH 50 Hz...
  • Page 77 Chillers OptiChill Freecool Electrical Data Regular Quiet Continued OFC107R18-99HL5 OFC078R20-66ML1 OFC084R20-76HL2 Notes Units Unit Data Nominal Run Amps (1) Maximum Start Amps 1149 Recommended Mains Fuse Size Mains Supply 400 V 3 PH 50 Hz 400 V 3 PH 50 Hz...
  • Page 78 OptiChill Freecool Chillers Electrical Data Regular Quiet Continued Active Cabinet Exhaust OFC092R20-87MS4 OFC099R20-88HS6 OFC108R20-99HL6 Notes Units Unit Data Nominal Run Amps (1) Maximum Start Amps 1136 1157 Recommended Mains Fuse Size Mains Supply 400 V 3 PH 50 Hz 400 V 3 PH 50 Hz...
  • Page 79 Chillers OptiChill Freecool Electrical Data Regular Quiet Continued OFC078R22-66MS1 OFC084R22-76MS2 OFC093R22-87HS4 Notes Units Unit Data Nominal Run Amps (1) Maximum Start Amps 1116 Recommended Mains Fuse Size Mains Supply 400 V 3 PH 50 Hz 400 V 3 PH 50 Hz...
  • Page 80 OptiChill Freecool Chillers Electrical Data Regular Quiet Continued Active Cabinet Exhaust OFC097R22-88MS4 OFC109R22-99HL5 Notes Units Unit Data Nominal Run Amps (1) Maximum Start Amps 1166 Recommended Mains Fuse Size Mains Supply 400 V 3 PH 50 Hz 400 V 3 PH 50 Hz Max Mains Incoming Cable Size mm²...

  • Page 81: Electrical Data Extra Quiet

    Chillers OptiChill Freecool Electrical Data Extra Quiet OFC073X16-66HS1 OFC074X16-66HL1 OFC078X16-76HS2 Notes Units Unit Data Nominal Run Amps (1) Maximum Start Amps Recommended Mains Fuse Size Mains Supply 400 V 3 PH 50 Hz 400 V 3 PH 50 Hz 400 V 3 PH 50 Hz Max Mains Incoming Cable Size mm²...
  • Page 82 OptiChill Freecool Chillers Electrical Data Extra Quiet Continued Active Cabinet Exhaust OFC079X16-76HL2 OFC083X16-77HL2 OFC075X18-66MS1 Notes Units Unit Data Nominal Run Amps (1) Maximum Start Amps Recommended Mains Fuse Size Mains Supply 400 V 3 PH 50 Hz 400 V 3 PH 50 Hz...
  • Page 83 Chillers OptiChill Freecool Electrical Data Extra Quiet Continued OFC080X18-76ML2 OFC088X18-87HS4 OFC095X18-88HS6 Notes Units Unit Data Nominal Run Amps (1) Maximum Start Amps 1066 1095 Recommended Mains Fuse Size Mains Supply 400 V 3 PH 50 Hz 400 V 3 PH 50 Hz...
  • Page 84 OptiChill Freecool Chillers Electrical Data Extra Quiet Continued Active Cabinet Exhaust OFC102X18-99HL6 OFC076X20-66HS1 OFC081X20-76ML2 Notes Units Unit Data Nominal Run Amps (1) Maximum Start Amps 1116 Recommended Mains Fuse Size Mains Supply 400 V 3 PH 50 Hz 400 V 3 PH 50 Hz...
  • Page 85 Chillers OptiChill Freecool Electrical Data Extra Quiet Continued OFC092X20-87HS6 OFC097X20-88HL5 OFC104X20-99HL6 Notes Units Unit Data Nominal Run Amps (1) Maximum Start Amps 1071 1100 1121 Recommended Mains Fuse Size Mains Supply 400 V 3 PH 50 Hz 400 V 3 PH 50 Hz...
  • Page 86 OptiChill Freecool Chillers Electrical Data Extra Quiet Continued Active Cabinet Exhaust OFC076X22-66HS1 OFC082X22-76ML2 OFC091X22-87HS4 Notes Units Unit Data Nominal Run Amps (1) Maximum Start Amps 1076 Recommended Mains Fuse Size Mains Supply 400 V 3 PH 50 Hz 400 V 3 PH 50 Hz...
  • Page 87 Chillers OptiChill Freecool Electrical Data Extra Quiet Continued Notes Units OFC093X22-87ML5 OFC105X22-99HL6 Unit Data Nominal Run Amps (1) Maximum Start Amps 1126 Recommended Mains Fuse Size Mains Supply 400 V 3 PH 50 Hz 400 V 3 PH 50 Hz Max Mains Incoming Cable Size mm²...

  • Page 88: Waterside Pressure Drop (Kpa) (Unit) 16 Fan 2 Row Coil

    OptiChill Freecool Chillers Performance Data Waterside Pressure Drop (kPa) (Unit) 16 Fan 2 Row Coil Active Cabinet Exhaust CAUTION Full design water flow MUST be maintained at all times. Variable water volume is NOT recommended and will invalidate warranty. S1,S2 Water flow (l/s) Chiller pressure drop refers to standard unit only.

  • Page 89: Waterside Pressure Drop (Unit) (Kpa) 18 Fan 2 Row Coil

    Chillers OptiChill Freecool Waterside Pressure Drop (Unit) (kPa) 18 Fan 2 Row Coil Full design water flow MUST be maintained at all times. Variable water volume is CAUTION NOT recommended and will invalidate warranty. Water flow (l/s) Waterside Pressure Drop (Unit) (kPa) 18 Fan 2 Row Coil Water flow (l/s) Chiller pressure drop refers to standard unit only.

  • Page 90: Waterside Pressure Drop (Unit) (Kpa) 20 Fan 2 Row Coil

    OptiChill Freecool Chillers Waterside Pressure Drop (Unit) (kPa) 20 Fan 2 Row Coil Active Cabinet Exhaust Full design water flow MUST be maintained at all times. Variable water volume is CAUTION NOT recommended and will invalidate warranty. Water flow (l/s)

  • Page 91: Waterside Pressure Drop (Unit) (Kpa) 22 Fan 2 Row Coil

    Chillers OptiChill Freecool Waterside Pressure Drop (Unit) (kPa) 22 Fan 2 Row Coil Full design water flow MUST be maintained at all times. Variable water volume is CAUTION NOT recommended and will invalidate warranty. Water flow (l/s) Waterside Pressure Drop (Unit) (kPa) 22 Fan 2 Row Coil Water flow (l/s) Chiller pressure drop refers to standard unit only.

  • Page 92: Waterside Pressure Drop (Unit) (Kpa) 16 Fan 3 Row Coil

    OptiChill Freecool Chillers Waterside Pressure Drop (Unit) (kPa) 16 Fan 3 Row Coil Active Cabinet Exhaust Full design water flow MUST be maintained at all times. Variable water volume is CAUTION NOT recommended and will invalidate warranty. Water flow (l/s) Chiller pressure drop refers to standard unit only.

  • Page 93: Waterside Pressure Drop (Unit) (Kpa) 18 Fan 3 Row Coil

    Chillers OptiChill Freecool Waterside Pressure Drop (Unit) (kPa) 18 Fan 3 Row Coil CAUTION Full design water flow MUST be maintained at all times. Variable water volume is NOT recommended and will invalidate warranty. Water flow (l/s) Waterside Pressure Drop (Unit) (kPa) 18 Fan 3 Row Coil Water flow (l/s) Chiller pressure drop refers to standard unit only.

  • Page 94: Waterside Pressure Drop (Unit) (Kpa) 20 Fan 3 Row Coil

    OptiChill Freecool Chillers Waterside Pressure Drop (Unit) (kPa) 20 Fan 3 Row Coil Full design water flow MUST be maintained at all times. Variable water volume is CAUTION Active Cabinet Exhaust NOT recommended and will invalidate warranty. S6, S7 Water flow (l/s)

  • Page 95: Waterside Pressure Drop (Unit) (Kpa) 22 Fan 3 Row Coil

    Chillers OptiChill Freecool Waterside Pressure Drop (Unit) (kPa) 22 Fan 3 Row Coil Full design water flow MUST be maintained at all times. Variable water volume is CAUTION NOT recommended and will invalidate warranty. Water flow (l/s) Waterside Pressure Drop (Unit) (kPa) 22 Fan 3 Row Coil Water flow (l/s) Chiller pressure drop refers to standard unit only.

  • Page 96: Evaporator Pressure Drops

    OptiChill Freecool Chillers Evaporator Pressure Drops Active Cabinet Exhaust Water flow (l/s) Water flow (l/s) Chiller pressure drop refers to standard unit only. For optional extras and pipework, please contact Airedale. For glycol solutions, please refer to Glycol Data, on page 53.

  • Page 97: Water Strainer Pressure Drops

    Chillers OptiChill Freecool Water Strainer Pressure Drops 6" 8" Water flow (l/s) The above curves relate to the strainer size (inches). Data based upon the filters being clean. Chillers Technical Manual : 7197700 v1.5.0 10/15...

  • Page 98: Pump Packages (Optional Extras)

    OptiChill Freecool Chillers Performance Data Pump packages (optional extras) Active Cabinet Exhaust CAUTION Full design water flow MUST be maintained at all times. Variable water volume is NOT recommended and will invalidate warranty. Use the formula below and the graphs provided to calculate the External Head Available: Example Model Ref.
  • Page 99 Chillers OptiChill Freecool Performance Data Pump Packages (Optional Extras) AC Motor - Fixed Speed Option 65-125 65-4 65-3 65-1 65-2 Q [m³/hr] Water flow (m³/hr) 65-160 65-8 65-7 65-6 65-5 Q [m³/hr] Water flow (m³/hr) Chillers Technical Manual : 7197700 v1.5.0 10/15...
  • Page 100 OptiChill Freecool Chillers Performance Data Pump Packages (Optional Extras) Active Cabinet Exhaust 80-160 80-4 80-3 80-2 80-1 Q [m³/hr] Water flow (m³/hr) Chillers Technical Manual : 7197700 v1.5.0. 10/15...

  • Page 101: Sound Data

    Chillers OptiChill Freecool Sound Data Measurement of sound All sound data quoted has been measured in the third-octave band limited values, using data a Real Time Analyser calibrated sound intensity meter in accordance with BS EN ISO9614 Part 1 : 1995. The Global sound data quoted is valid for noise emitted in the horizontal plane in all directions.
  • Page 102 All sound data measured at nominal conditions: Water in/out 15/10°C at 35°C ambient. Based on standard unit, for units fitted with optional extras, please contact Airedale. The Sound Pressure data quoted is only valid in free field conditions, where the unit is installed on a reflective base. If the equipment is placed adjacent to a reflective wall, values may vary to those stated, typically increasing by 3dB for each side added.
  • Page 103 All sound data measured at nominal conditions: Water in/out 15/10°C at 35°C ambient. Based on standard unit, for units fitted with optional extras, please contact Airedale. The Sound Pressure data quoted is only valid in free field conditions, where the unit is installed on a reflective base. If the equipment is placed adjacent to a reflective wall, values may vary to those stated, typically increasing by 3dB for each side added.
  • Page 104 All sound data measured at nominal conditions: Water in/out 15/10°C at 35°C ambient. Based on standard unit, for units fitted with optional extras, please contact Airedale. The Sound Pressure data quoted is only valid in free field conditions, where the unit is installed on a reflective base. If the equipment is placed adjacent to a reflective wall, values may vary to those stated, typically increasing by 3dB for each side added.
  • Page 105 All sound data measured at nominal conditions: Water in/out 15/10°C at 35°C ambient. Based on standard unit, for units fitted with optional extras, please contact Airedale. The Sound Pressure data quoted is only valid in free field conditions, where the unit is installed on a reflective base. If the equipment is placed adjacent to a reflective wall, values may vary to those stated, typically increasing by 3dB for each side added.

  • Page 106: Installation Data

    OptiChill Freecool Chillers Installation Data Active Cabinet Exhaust Dimensional Data Unit diagrams can be supplied on request, please contact Airedale. Chillers Technical Manual : 7197700 v1.5.0. 10/15...
  • Page 107 Chillers OptiChill Freecool Chillers Technical Manual : 7197700 v1.5.0 10/15...
  • Page 108 OptiChill Freecool Chillers Active Cabinet Exhaust Dimensions (mm) Case Size 16 Fan 1980 1980 1980 1980 1105 9850 1155 2000 4000 2000 18 Fan 1980 1980 1980 1980 1125 10850 1155 2000 4000 2000 20 Fan 1980 1980 1980 1980...

  • Page 109: Weights, Point Loadings & Centre Of Gravity (C Of G) - No Pumps

    1425 1445 1555 1645 1410 1240 1370 1355 1435 1495 1255 1120 16750 5860 1060 Based on standard unit, for units fitted with options, please contact Airedale. Operating weight includes refrigerant charge and system water volume. Chillers Technical Manual : 7197700 v1.5.0 10/15...
  • Page 110 1425 1445 1555 1645 1410 1240 1370 1355 1440 1495 1255 1125 16760 5860 1060 Based on standard unit, for units fitted with options, please contact Airedale. Operating weight includes refrigerant charge and system water volume. Chillers Technical Manual : 7197700 v1.5.0. 10/15...

  • Page 111: Unit Lifting

    Chillers OptiChill Freecool Installation Data  Unit Lifting Employ lifting specialists  Local codes and regulations relating to the lifting of this type of equipment should be observed  Use the appropriate spreader bars/lifting slings (provided by others) with the holes/lugs provided ...

  • Page 112: Positioning

    OptiChill Freecool Chillers Installation Data Active Cabinet Exhaust Positioning The installation position should be selected with the following points in mind:  Position on a stable and even base, levelled to ensure that the compressor operates correctly  Levelling should be to +/- 5mm ...

  • Page 113: Anti Vibration Mounting (Optional)

    Chillers OptiChill Freecool Installation Data Anti vibration mounting (optional) Spring Type Each mount is coloured to indicate the different loads, refer to AV selection sheet supplied separately for correct allocation. Dimensions A (1) FØ Unloaded dimension. For models with optional pumps fitted, please consult Airedale.

  • Page 114: Water System

    OptiChill Freecool Chillers Installation Data Water system Chilled water pipework and ancillary components must be installed in accordance with: Active Cabinet Exhaust  National and Local Water supply company standards  The manufacturer's instructions are followed when fitting ancillary components ...

  • Page 115: Grooved & Clamped Type Connection

    Chillers OptiChill Freecool Place Grooved Ends Together Locate Rubber Gasket Grooved & Clamped Type Connection   Note that an expansion gap of 5mm is The gasket should be checked for shown here compatability and damage prior to installation. ...
  • Page 116 OptiChill Freecool Chillers Installation Data Active Cabinet Exhaust Water System Component The recommended requirements to allow commissioning to be carried out correctly are:  Recommended The inclusion of Binder Points adjacent to the flow and return connections, to allow Requirements temperature and pressure readings.
  • Page 117 Chillers OptiChill Freecool Installation Data  General As standard the equipment is designed for 400V, 3 phase, 3 wire 50Hz direct to busbar and a separate permanent 230V, 1 phase, 50Hz supply, to all relevant IEE regulations, British standards and IEC requirements ...

  • Page 118: Interconnecting Wiring

    OptiChill Freecool Chillers Installation Data Interconnecting Wiring Active Cabinet Exhaust     Mains incoming supply 400V/3PH/50Hz         Separate Permanent Supply 230V / 1PH +N / 50Hz     External Trace Heating Connections ...

  • Page 119: Plan Termination

    Chillers OptiChill Freecool pLAN Termination IMPORTANT: The plugged termination ensures that the connections are made simultaneously. Failure to attach the cables this way may cause damage to the controller. Chillers Technical Manual : 7197700 v1.5.0 10/15...

  • Page 120: Storage Recommendations

    OptiChill Freecool Chillers Storage Recommendations Airedale recommends that equipment should be stored in an ambient protected warehouse facility. Active Cabinet Exhaust  The unit should be stored within a heated warehouse ensuring that the temperature does not fall below 0°C.
  • Page 121 Chillers OptiChill Freecool Chillers Technical Manual : 7197700 v1.5.0 10/15...
  • Page 122 Head Office: Airedale International Air Conditioning Ltd Leeds Road Rawdon Leeds LS19 6JY United Kingdom Tel: +44 (0) 113 239 1000 Fax: +44 (0) 113 250 7219 e-mail: enquiries@airedale.com website: www.airedale.com PART NO: ISSUE (TM E) V1.0.0 08/2011 V1.1.0 09/2012 V1.2.0...

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