AIREDALE LogiCool LCC20 Technical Manual
  1. Manuals
  2. Brands
  3. AIREDALE Manuals
  4. Chiller
  5. LogiCool LCC20
  6. Technical manual

AIREDALE LogiCool LCC20 Technical Manual

Freecooling chiller 20kw - 40kw
Hide thumbs
Table of Contents

Advertisement

Quick Links

COVER
LogiCool™
FreeCooling Chiller
20kW - 40kW
R410A
TECHNICAL MANUAL

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the LogiCool LCC20 and is the answer not in the manual?

Questions and answers

Subscribe to Our Youtube Channel

Related Manuals for AIREDALE LogiCool LCC20

Summary of Contents for AIREDALE LogiCool LCC20

  • Page 1 COVER LogiCool™ FreeCooling Chiller 20kW - 40kW R410A TECHNICAL MANUAL...

  • Page 2: 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 3: Table Of Contents

    LOGICOOL™ Chillers CONTENT S Contents Warranty ..........................2 General Description Unit Identification ........................4 Introduction ..........................4 Refrigerant ..........................4 Construction ........................... 5 Standard Features - Energy Saving ..................5 Standard Features - General ....................7 Optional Extras - Energy Saving .................... 8 Optional Extras - General .......................

  • Page 4: General Description

    Model Size (Expressed as Nominal Cooling in kW) INTRODUCTION The Airedale range of LogiCool Compact air cooled liquid chillers covers the nominal capacity range 20kW to 40kW in 2 model sizes. This range has been developed for high heat load requirements and is ideally suited to Server room applications.

  • Page 5: Construction

    LOGICOOL™ Chillers General Description CONSTRUCTION The base is fabricated from galvanised steel coated with epoxy baked powder paint to ensure a durable, weatherproof construction. Unit panels are manufactured from galvanised sheet steel coated with epoxy baked powder paint to provide a durable and weatherproof finish. Standard unit colour is Light Grey (RAL 7035).
  • Page 6 LOGICOOL™ Chillers General Description STANDARD FEATURES - ENERGY SAVING Evaporator Stainless steel high efficiency brazed plate heat exchanger(s) will allow optimum heat transfer between media. Each heat exchanger is insulated with closed cell polyurethane foam to Class 1 fire rating and the material is UV resistant. A self-regulating pad heater is fitted to the single evaporator and will protect against freeze up in ambient temperatures as low as -20°C.

  • Page 7: Standard Features - General

    LOGICOOL™ Chillers General Description STANDARD FEATURES - GENERAL Refrigeration Each refrigeration circuit is supplied with the following:  Full operating charge of R410A  Electronic Expansion Valve (EEV)  Liquid line ball valve  Discharge line ball valve  Liquid line filter drier ...

  • Page 8: Optional Extras - Energy Saving

    BMS Interface Card Enables controlled chillers to be interfaced with most BMS, including Airedale’s own pCOWeb, factory fitted, please contact Airedale. R410A Leak Detection A factory calibrated and fitted leak detection system, will raise an alarm when refrigerant gas is detected.
  • Page 9 An integral expansion vessel can be factory fitted. All vessels and pipework are trace heated. Commissioning Airedale Service provides a full commissioning service carried out by professionally trained, industry experienced engineers. For a competitive quotation, please contact Airedale Customer Services.

  • Page 10: Design Features & Information

    LOGICOOL™ Chillers Design Features & Information ELECTRONIC EXPANSION VALVES (EEV) Thermostatic Expansion Whilst offering versatile control at the full design duty of the unit, standard TEVs do not automatically optimise themselves to all operating conditions. Therefore, if the Valves (TEV) refrigeration system is operating at 40% or 50% of full load, especially at a lower ambient temperature than that for which the valve was sized, the conventional TEV must have the design head pressure available to ensure good refrigerant control.

  • Page 11: Digital Scroll Compressors

    LOGICOOL™ Chillers Design Features & Information DIGITAL SCROLL COMPRESSORS General Description Digital scroll compressor technology offers compressor capacity modulation from 20% to 100% achieved by the use of an externally integrated long life electronically controlled solenoid valve which loads and unloads the compressor scroll based on a 20 second cycle.

  • Page 12: Pipework Design

    LOGICOOL™ Chillers Design Features & Information DIGITAL SCROLL COMPRESSORS Control & Monitoring The systems superheat is controlled by a dedicated microprocessor and digital compressor performance is monitored via the AireTronix controller display. CAUTION The digital scroll compressor is always operating at either 100% or 0% mass flow. When inspecting the refrigerant system with gauges, this is evident by pulsing of the system pressures.

  • Page 13: Minimum System Water Volume Calculations

    LOGICOOL™ Chillers Design Features & Information MINIMUM SYSTEM WATER VOLUME CALCULATIONS (DX Mechanical Cooling Mode Requirements) General System fluid 20% ethylene glycol / 80% water. METHOD 1 Where the system permanent heat load is known and the preferred method: Minimum Chiller Loading Water Flow Rate Vm (l) =...
  • Page 14 LOGICOOL™ Chillers Controls Standard features General Description The microprocessor controller shall offer 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. The controller’s inbuilt display shall be used for viewing the unit operating status and making adjustments to control parameters by allowing the operator access to a series of display pages.
  • Page 15 The control system integrity can be maintained by restricting access with a password PIN number. CAUTION IMPORTANT: To change the PIN number; please contact Airedale at time of order with the preferred 4 digit number. OPTIONAL FEATURES Pump(s) Hours Run Displays hours run of each pump.

  • Page 16: Temperature Control

    If the free cooling available cannot satisfy the required full cooling load, DX mechanical cooling is used to supplement the output. Airedale recognises that all chiller applications are different but fall mainly into 2 application categories; Variable Supply Temperature and Constant Supply Temperature.

  • Page 17: Monitoring

    LOGICOOL™ Chillers Controls MONITORING The microprocessor also monitors and displays the following measured parameters:  Supply Water Temperature  Return Water Temperature  Evaporator Inlet water temperature  Ambient Air Temperature  Suction Pressure  Liquid Pressure  Evaporator Waterside Differential Pressure ...

  • Page 18: Performance Data

    (Free Cooling) reduce the unit’s lifecycle power consumption. The FSEER calculation method has been developed by Airedale to give a single value that is a realistic indication of the efficiency of the chiller across the whole range of operation.

  • Page 19: Capacity Data - Dx (Mechanical) Cooling

    Output kW Unit water flow rate (l/s) 3.9 x T Interpolate for water temperatures between those quoted, do not extrapolate. For conditions outside those quoted, please refer to Airedale. OPERATING LIMITS (For 20% Ethylene Glycol) Standard Unit Minimum Ambient Air DB °C -20°C...

  • Page 20: Capacity Data - Free Cooling

    LOGICOOL™ Chillers Performance Data CAPACITY DATA - FREE COOLING Determine the Free Cooling capacity as follows using the graphs provided: Model Ref. = LCC40 Example Ambient: = 35°C Fluid = 20% Ethylene Glycol Inlet Fluid Temp. = 7°C  Outlet Fluid Temp. = 12°C (5°C Customer Permanent Head Load = 20 kW...
  • Page 21 LOGICOOL™ Chillers Performance Data CAPACITY DATA - FREE COOLING LCC20 16°C ΔTFC 14°C ΔTFC 12°C ΔTFC 10°C ΔTFC 8°C ΔTFC 6°C ΔTFC Waterflow (l/s) LCC40 16°C ΔTFC 14°C ΔTFC 12°C ΔTFC 10°C ΔTFC 8°C ΔTFC 6°C ΔTFC Waterflow (l/s) All performance data is supplied in accordance with BS EN 14511-1:2013 Chillers Technical Manual : 6521355 V1.14.0 11/2016...

  • Page 22: Glycol Data

    LOGICOOL™ Chillers Performance Data GLYCOL DATA For a given percentage of glycol in the system there are correction factors that need to be applied, the following tables can be used as a guide. CAUTION All free-cooling units should use a MINIMUM 20% glycol concentration. Ethylene Glycol Nominal Correction Factors Glycol in System / Freezing Point ºC 20% / -9°C...

  • Page 23: Waterside Pressure Drop (Kpa)

    LOGICOOL™ Chillers Performance Data WATERSIDE PRESSURE DROP (KPA) CAUTION Full design water flow MUST be maintained at all times. Variable water volume is NOT recommended and will invalidate warranty LCC20 LCC40 Waterflow (l/s) For glycol solutions, please refer to Glycol Data, on page 22.

  • Page 24: Pump Packages (Optional Extras)

    LOGICOOL™ Chillers Performance Data PUMP PACKAGES Use the formula below and the graphs provided to calculate the External Head Available: (OPTIONAL EXTRAS) Example: Model Ref. = LCC40 Ambient: = 35°C Fluid = 20% Ethylene Glycol Inlet Fluid = 7°C  Outlet Fluid = 12°C (5°C Pump Selection...
  • Page 25 LOGICOOL™ Chillers Performance Data PUMP PACKAGES (OPTIONAL EXTRAS) Waterflow (l/s) Waterflow (l/s) Single Head Pump or Run / Standby Pump Standard Larger LCC20 Curve LCC40 Curve Chillers Technical Manual : 6521355 V1.14.0 11/2016...

  • Page 26: Sound Data

    LOGICOOL™ Chillers Sound Data MEASUREMENT OF All sound data quoted has been measured in the third-octave band limited values, using a Real Time Analyser calibrated sound intensity meter in accordance with BS EN ISO9614 SOUND DATA Part 1 : 2009. The Global sound data quoted is valid for noise emitted in the horizontal plane in all directions All Sound Power Levels quoted are calculated from measured sound intensity according...

  • Page 27: Sound Data

    All sound data measured at nominal conditions: Water in/out 12/7°C at 35°C ambient. Based on standard unit, for units fitted with optional pump packages, please contact Airedale. The Sound Pressure data quoted is only valid in free field conditions, where the unit is installed on a reflective base.

  • Page 28: General Specification

    Free Cooling duties based on flow rate at conditions (1), 12°C return water temperature @ 5°C ambient and 20% Ethylene Glycol Water Concentration. Based on standard unit, for units fitted with options, please contact Airedale. For minimum system volume, refer to Minimum System Water Volume Calculations, on page 13.

  • Page 29: Electrical Data

    LOGICOOL™ Chillers General Specification ELECTRICAL DATA LCC20 LCC40 Unit Data Nominal Run Amps Maximum Start Amps Permanent Supply 230 V 1 PH 50 Hz Mains Supply 400 V 3 PH 50 Hz Rec Permanent Fuse Size Rec Mains Fuse Size Max Permanent Incoming Cable Size mm²...

  • Page 30: Dimensional Data

    (Note:- the pipework connections on the unit allow for a 1 ½” BSP Male fitting to be screwed into the assembly). WEIGHTS Machine Operating LCC20 LCC40 Based on standard unit, for units fitted options, please contact Airedale. Chillers Technical Manual : 6521355 V1.14.0 11/2016...

  • Page 31: Installation Data

    Lift the unit slowly and evenly  If the unit is dropped, it should immediately be checked for damage and reported to Airedale CAUTION Only use lifting points provided. The unit should be lifted from the top and where possible, with all packing and protection in position.

  • Page 32: Positioning

    LOGICOOL™ Chillers Installation Data 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 33: Standard Recommended Installation

    Chillers Installation Data STANDARD RECOMMENDED INSTALLATION (Parts Supplied by Others) General Airedale offers a wide range of optional extras to suit various applications including integral pump, please refer to , on page 8 for details. Optional Extras - General CAUTION Should non Airedale parts be used, the following installation recommendations should be adhered to.

  • Page 34: Pump Packages (Optional Extras)

    LOGICOOL™ Chillers Installation Data PUMPS Pump Statement When installing circulating water pumps or equipment containing them, the following rules should be applied:  Ensure the system is filled with liquid then vented and the pump primed with water before running the pump, this is required because the pumped liquid cools the pump bearings and mechanical seal faces ...

  • Page 35: Electrical

    LOGICOOL™ Chillers Installation Data ELECTRICAL CAUTION ALL work MUST be carried out by technically trained competent personnel. The equipment contains live electrical and moving parts, ISOLATE prior to maintenance or repair work.  General As standard the equipment is designed for 400V, 3 phase, 3 wire 50Hz and a separate permanent 230V, 1 phase, 50Hz supply, to all relevant IEE regulations, British standards and IEC requirements ...
  • Page 36 LOGICOOL™ Chillers 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 : 6521355 V1.14.0 11/2016...
  • Page 38 W here to Fin d U s 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:...

This manual is also suitable for:

Logicool lcc40

Table of Contents