CIAT PowerCiat LX ST Instruction Manual
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CIAT PowerCiat LX ST Instruction Manual

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10256
06 - 2018
I n s t r u c t i o n m a n u a l

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Summary of Contents for CIAT PowerCiat LX ST

  • Page 1 10256 06 - 2018 I n s t r u c t i o n m a n u a l...

  • Page 2: Table Of Contents

    8.5 - Operating ranges for stable operation (no mode changeover) ..................41 8.6 - Operating limits for changeover between modes ......................42 8.7 - Flow control ..................................42 8.8 - Heat reclaim operation ..............................42 8.9 - Condenser pump selection..............................43 8.10 - Frost protection ................................43 POWERCIAT LX ST/HE/XE...
  • Page 3 This manual applies to the following two PowerCiat versions: • LX ST units, standard efficiency • LX HE units, high seasonal efficiency • LX XE Premium units For the operation of the control, please refer to the POWERCIAT Connect'Touch control manual. POWERCIAT LX ST/HE/XE...

  • Page 4: Introduction

    • Fire extinguishers appropriate to the system and the CIAT strongly recommends employing a specialised refrigerant type must be easily accessible company to unload the machine. All factory-installed relief valves are lead-sealed to prevent Do not remove the skid or the packaging until the unit is in any calibration change.

  • Page 5: Equipment And Components Under Pressure

    1.3 - Maintenance safety considerations the regulation is called F-Gas, N°517/2014 2. Ensure that the refrigerant is never released to CIAT recommends using the following maintenance logbook the atmosphere during installation, maintenance template (the table below should not be considered a reference, or equipment disposal.

  • Page 6: Repair Safety Considerations

    Consult CIAT Service for this type of test. In this document, CIAT only outlines the principle for a test without removal of the Only use dry nitrogen for leak tests, possibly with an appropriate pressure switches: tracer gas.
  • Page 7 Do not incinerate them. Only use R134a refrigerant, in accordance with AHRI Standard 700 (published by the US Air conditioning, Heating and Refrigeration Institute). The use of any other refrigerant may expose users and operators to unexpected risks. POWERCIAT LX ST/HE/XE...

  • Page 8: Preliminary Checks

    The unit must be checked periodically during its whole operating life to ensure that no shocks (handling accessories, tools etc.) have damaged it. If necessary, damaged parts must be repaired or replaced. See also chapter 13 “Standard maintenance”. POWERCIAT LX ST/HE/XE...
  • Page 9 If a unit contains a hydraulic module, the hydraulic module and pump piping must be installed in a way that does not submit it to any strain. The hydraulic module pipes must be fitted so that the pump does not support the weight of the pipes. POWERCIAT LX ST/HE/XE...

  • Page 10: Dimensions/Clearances

    For the Brine and evaporator options with one pass less or one pass “Multiple chiller installation” and 3.13 “Distance to the more, refer to the certified dimensional drawing. wall” of this document to determine the space required. Air outlet – do not obstruct Power supply and control connection POWERCIAT LX ST/HE/XE...

  • Page 11: Lx 1528

    For the Brine and evaporator options with one pass less or one pass “Multiple chiller installation” and 3.13 “Distance to the more, refer to the certified dimensional drawing. wall” of this document to determine the space required. Air outlet – do not obstruct Power supply and control connection POWERCIAT LX ST/HE/XE...

  • Page 12: Lx2528 To 2628

    For the Brine and evaporator options with one pass less or one pass “Multiple chiller installation” and 3.13 “Distance to the more, refer to the certified dimensional drawing. wall” of this document to determine the space required. Air outlet – do not obstruct Power supply and control connection POWERCIAT LX ST/HE/XE...

  • Page 13: Lx 3428 To 4408

    For the Brine and evaporator options with one pass less or one pass “Multiple chiller installation” and 3.13 “Distance to the more, refer to the certified dimensional drawing. wall” of this document to determine the space required. Air outlet – do not obstruct Power supply and control connection POWERCIAT LX ST/HE/XE...

  • Page 14: Multiple Chiller Installation

    If h < H (2.3 m), minimum S = 3 m warm air from one unit to another. If h > H or S < 3 m, contact your CIAT distributor to evaluate the 1.5 m 1.5 m various possible arrangements.

  • Page 15: Physical Properties And Electrical Data For Lx Units

    (2) In dB ref 20µPa, 'A' weighted. Declared dual-number noise emission values in accordance with ISO 4871 with an associated uncertainty of +/-3dB(A). For information, calculated from the sound power Lw(A). (3) Values are guidelines only. Refer to the unit name plate. (4) Depends on the number of passes on the evaporator POWERCIAT LX ST/HE/XE...
  • Page 16 (2) In dB ref 20 µPa, 'A' weighted. Declared dual-number noise emission values in accordance with ISO 4871 with an associated uncertainty of +/-3dB(A). For information, calculated from the sound power Lw(A). (3) Values are guidelines only. Refer to the unit name plate. POWERCIAT LX ST/HE/XE...
  • Page 17 (2) In dB ref 20µPa, 'A' weighted. Declared dual-number noise emission values in accordance with ISO 4871 with an associated uncertainty of +/-3dB(A). For information, calculated from the sound power Lw(A). (3) Values are guidelines only. Refer to the unit name plate. POWERCIAT LX ST/HE/XE...
  • Page 18 (2) In dB ref 20µPa, 'A' weighted. Declared dual-number noise emission values in accordance with ISO 4871 with an associated uncertainty of +/-3dB(A). For information, calculated from the sound power Lw(A). (3) Values are guidelines only. Refer to the unit name plate. POWERCIAT LX ST/HE/XE...

  • Page 19: Electrical Data

    (a) When the machines are equipped with two power supplies, circuit 1 is intended to supply refrigerant circuit A and circuit 2 supplies the refrigerant circuit B. For units LX3428 to 4608: circuit 1 supplies circuit A, circuit 2 supplies circuit B. POWERCIAT LX ST/HE/XE...
  • Page 20 (a) When the machines are equipped with two power supplies, circuit 1 is intended to supply refrigerant circuit A and circuit 2 supplies the refrigerant circuit B. For units LX3428 to 4608: circuit 1 supplies circuit A, circuit 2 supplies circuit B. POWERCIAT LX ST/HE/XE...
  • Page 21 (3) Maximum operating current of the smallest compressor(s) + fan current + locked rotor current of the largest compressor. (4) Standardised EUROVENT conditions, water-cooled heat exchanger water inlet/outlet = 12 °C/7 °C, outdoor air temperature = 35 °C. POWERCIAT LX ST/HE/XE...
  • Page 22 (4) Standardised EUROVENT conditions, water-cooled exchanger inlet/outlet = 12°C/7°C, outdoor air temperature = 35°C. (a) When the machines are equipped with two power supplies, circuit 1 is intended to supply refrigerant circuit A and circuit 2 supplies the refrigerant circuit B POWERCIAT LX ST/HE/XE...

  • Page 23: Compressor Electrical Data

    4.4 - Compressor usage per circuit (A, B, C, D) Compressor Circuit 0808 0908 1008 1108 1358 1528 1858 2008 2158 2308 2528 2628 3028 3428 3828 4008 4408 4608 06TSA155 06TSA186 06TTA266 06TTA301 06TTA356 06TUA483 06TUA554 06TVA680 06TVA753 06TVA819 POWERCIAT LX ST/HE/XE...
  • Page 24 - power supply frequency variation : +-2 Hz; contact your local CIAT representative. - phase imbalance: 2 %; The required protection level for this class is IP43BW (according to reference - voltage total harmonic distortion (THD): 8 %.

  • Page 25: Electrical Data, Optional Hydraulic Module

    Please refer to the operating conditions given in this manual or in the III - Maximum operating temperature °C specific conditions given in the CIAT selection programs. IV - Potentially explosive atmospheres Non ATEX environment Low pressure single and dual pump motors for LX units...

  • Page 26: Electrical Connection

    CIAT warranty. If the phase imbalance exceeds 2% for voltage, or 10% for current, The calculations are based on the maximum machine current contact your local electricity supply at once and ensure that (see electrical data tables).

  • Page 27: Field Control Wiring

    The protection against direct contact at the electrical connection point is compatible with the addition of extension for the terminals. The installer must determine whether these are necessary based on the cable sizing calculation. Note: The currents considered are given for a machine equipped with a hydraulic module operating at maximum current. POWERCIAT LX ST/HE/XE...

  • Page 28: Application Data

    Note: If the leaving water temperature is below 4°C, a glycol/water solution or the frost protection option must be used. Recirculation (1) Based on the installation type and the air temperature (2) Part load, depended of sizes & leaving water temperature POWERCIAT LX ST/HE/XE...

  • Page 29: Maximum Chilled Water Flow (Units Without Hydraulic Module)

    The tank must itself be internally baffled in order to ensure proper mixing of the liquid (water or brine). Refer to the examples below. Connection to a buffer tank Incorrect Correct Incorrect Correct POWERCIAT LX ST/HE/XE...

  • Page 30: Evaporator Pressure Drop Curve

    F 1358 G 1528 H 1858 Water flow rate, l/s Sizes 2008 to 4608 B 2158 C 2308 D 2528 E 2628 F 3028 G 3428 H 3828 I 4008 J 4408 K 4608 Water flow rate, l/s POWERCIAT LX ST/HE/XE...

  • Page 31: Water Connections

    Verify then, the need to install sacrificial anodes. If additives or other fluids than those recommended by CIAT are used, ensure that the fluids are not considered as a gas, and that they belong to class 2, as defined in directive 2014/68/UE.

  • Page 32: Victaulic Water Connections

    Hydraulic module defrost heater (option) Charge valve Victaulic screen filter Air vent (evaporator) Expansion tank Water drain (evaporator) Hydraulic module (supplied as an option) Relief valve Expansion compensator (flexible connections) Available pressure pump Flow switch Drain valve Water temperature sensor POWERCIAT LX ST/HE/XE...

  • Page 33: Flow Control

    If adjustment is necessary, it must be carried out by qualified available somewhere on the heat exchanger water box in personnel trained by CIAT Service. case the machine is not perfectly level). • At the start of the next season, refill the unit with water and 7.4 - Tightening the evaporator water box...

  • Page 34: Pump Characteristics

    - In case of use of the glycol, the maximum water flow is reduced. - When the glycol is used, it’s limited to 40%. Single pump low pressure Water flow rate, l/s B LX 0808 C LX 0908 D LX 1008 E LX 1108 F LX 1358 G LX 11528 POWERCIAT LX ST/HE/XE...
  • Page 35 E LX 1108 F LX 1358 G LX 11528 Water flow rate, l/s Dual pump high pressure B LX 0808 C LX 0908 D LX 1008 E LX 1108 F LX 1358 G LX 1528 Water flow rate, l/s POWERCIAT LX ST/HE/XE...
  • Page 36 11 13 15 17 19 21 23 25 27 29 31 33 35 Water flow rate, l/s High pressure pumps 450 - 500 300 - 350 11 13 15 17 19 21 23 25 27 29 31 33 35 Water flow rate, l/s POWERCIAT LX ST/HE/XE...

  • Page 37: Heat Reclaim Condenser Option

    • If the installation includes several units or if this (these) is (are) close to walls, please refer to chapters 3.11 “Multiple chiller installation” and 3.12 - “Distance to the wall” of this document to determine the space required. POWERCIAT LX ST/HE/XE...
  • Page 38 • If the installation includes several units or if this (these) is (are) close to walls, please refer to chapters 3.11 “Multiple chiller installation” and 3.12 - “Distance to the wall” of this document to determine the space required. POWERCIAT LX ST/HE/XE...
  • Page 39 • If the installation includes several units or if this (these) is (are) close to walls, please refer to chapters 3.11 “Multiple chiller installation” and 3.12 “Distance to the wall” of this document to determine the space required. POWERCIAT LX ST/HE/XE...
  • Page 40 • If the installation includes several units or if this (these) is (are) close to walls, please refer to chapters 3.11 “Multiple chiller installation” and 3.12 “Distance to the wall” of this document to determine the space required. POWERCIAT LX ST/HE/XE...

  • Page 41: Condenser Location

    The valve allows bypassing of the heat reclaim condenser entering/leaving circuit to ensure unit operation with heat reclaim at low entering water temperature (< 12.5 °C). It also ensures an optimal and controlled leaving water temperature. Unit load, % POWERCIAT LX ST/HE/XE...

  • Page 42: Operating Limits For Changeover Between Modes

    Pressure and temperature measurement to calculate the liquid sub-cooling to For more details on the heat reclaim mode operating logic, optimise the charge recovery 12 Check valve with capillary please refer to the POWERCIAT Connect’Touch control manual, chapter 6.15 “Optional heat reclaim module”. POWERCIAT LX ST/HE/XE...

  • Page 43: Condenser Pump Selection

    - during regulation of the delta temperature, with the variable- Parallel control of the fans and of the variable flow rate in the speed pump option. water loop enable the system to operate in outdoor temperatures of down to -20 °C without any additional control POWERCIAT LX ST/HE/XE...
  • Page 44 Compatible fans configuration: - 1 to 20 fans, - fixed speed or variable speed, - 1 or 2 rows of fans. Refer to the drycooler electrical diagram to see the fan stages arrangement. POWERCIAT LX ST/HE/XE...

  • Page 45: Major System Components And Operation Data

    The 06T screw compressor is approved for use with the following - An indication of any modification or repair must be shown lubricants: in the monitoring and maintenance file. - Castrol Icematic SW220 (CIAT specification PP47-32), - Lubrizol Emkarate RL220H (CIAT specification PP47-13). Recycling 11.1.4 - Oil supply solenoid valve The unit is wholly or partly recyclable.

  • Page 46: High-Pressure Safety Switch

    This is also the case for the products tool are called PZHH (former SDBK). If a PZHH cuts out, the originally supplied by CIAT. corresponding PZH in the same compressor is faulty and must be replaced. The PZHH must be reset with a blunt tool with a 11.2.2 - Oil separator...

  • Page 47: Electronic Expansion Valve (Exv)

    If there 06TTA301 is a pressure difference, leak-tightness at the valve 06TTA356 may be lost and the valve can even fail altogether. 06TUA483 06TUA554 Operation of the unit without capacitors results in an increase in the current POWERCIAT LX ST/HE/XE...
  • Page 48 The fan designation and position are given on the unit drawings and wiring diagrams y = Start-up order supplied with the unit. These fans are also used to reduce the ventilation steps during change-over of dual stages: They may stop and then restart depending on the stage ordered. POWERCIAT LX ST/HE/XE...

  • Page 49: Main Options

    For more LP dual-pump hydraulic Sizes 808 to 1528 details, refer to the dedicated chapter (expansion Easy and fast installation (plug & play) module tank not included; option with built-in hydraulic safety components available) POWERCIAT LX ST/HE/XE...
  • Page 50 Free Cooling dry cooler Control and connections to a free cooling drycooler Easy system management, extended control capabilities to a ● management Opera or Vextra fitted with option FC control box drycooler used in free cooling mode POWERCIAT LX ST/HE/XE...

  • Page 51: Standard Maintenance

    13.1 - Level 1 maintenance manufacturer, CIAT France, from all liability. See note “Any deviation or non-observation ...” in chapter 12.3 At this level, maintenance requires specific skills/certification/ “Level 3 (or higher) maintenance”.

  • Page 52: Tightening Torques For The Main Bolts And Screws

    Nut 3/8 ORFS Oil line Nut H M12/M16 Victaulic collars on suction piping 60/130 Self-locking Nut M16 Compressor fixing The tightening of the connections at the compressor terminals requires special precautions. Please refer to the chapter below. POWERCIAT LX ST/HE/XE...

  • Page 53: Evaporator Maintenance

    It is a switch with manual reset that can be reset after the pressure rises back above 70 kPa. The pressure switch must be a manual reset type to prevent any risk of the compressor short cycling in the reverse direction. POWERCIAT LX ST/HE/XE...

  • Page 54: Precaution For Compressor Power Supply Bus Bar Connection

    Connection of the contactor or current transformer Incorrect Correct Power supply bus bar with riveted contact block Contactor or current transformer connection zone POWERCIAT LX ST/HE/XE...

  • Page 55: Start-Up Checklist For Lx Liquid Chillers (Use For Job File)

    Circulate chilled water in the water circuit for at least two hours, then remove, clean and replace the screen filter. After the pump test has been completed, switch the unit off again. Inlet piping to cooler includes a 20 mesh strainer with a mesh size of 1.2 mm. The compressor flange has been removed. POWERCIAT LX ST/HE/XE...
  • Page 56 Voltage imbalance less than 2 % WARNING: operating the chiller with an incorrect supply voltage or excessive phase imbalance constitutes improper use and will invalidate the CIAT warranty. If the phase imbalance exceeds 2% for voltage, or 10% for current, contact your local electricity supply at once and ensure that the chiller is not switched on until corrective measures have been taken.
  • Page 57 POWERCIAT LX ST/HE/XE...
  • Page 58 CIAT Service www.ciat.fr This document is not legally binding. As part of its continuous drive to improve its equipment, CIAT reserves the right to make any technical modifications without prior notice. Registered address Avenue Jean Falconnier B.P. 14 01350 Culoz - France Tel.

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