Vertiv Liebert PCW User Manual
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Vertiv Liebert PCW User Manual

Vertiv Liebert PCW User Manual

High efficiency 25-200 kw chilled water room cooling units l-c version (single chilled water circuit) x-r version (redundant - double chilled water circuit)
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Liebert® PCW
High Efficiency
25-200 kW Chilled Water Room Cooling Units
L-C Version (single chilled water circuit)
X-R Version (redundant - double chilled water
circuit)
User Manual
English, Cod. 273895, rev. 04.10.2018

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  • Page 1 Liebert® PCW High Efficiency 25-200 kW Chilled Water Room Cooling Units L-C Version (single chilled water circuit) X-R Version (redundant - double chilled water circuit) User Manual English, Cod. 273895, rev. 04.10.2018...

  • Page 3: Important Safety Instructions

    Unscrew the door and open it to access the main switch. • After opening the door pay attention to the cable and components still energized. • Open the main switch to cut off the power before removing any protective cover. Liebert PCW - UM - 273895 - 04.10.2018...
  • Page 4 Components still at high temperature. • Rotating elements (fan impellers, they might continue to rotate for a while by inertia) • Sharp edges, splinters and exposed fasteners Pay attention to the warning labels on the unit. Liebert PCW - UM - 273895 - 04.10.2018...
  • Page 5 Not used Not used Min. room operation temperature Max. room operation temperature Min. room operation humidity Max. room operation humidity Max. hydraulic circuit pressure Manufacturing plant Manufacturing date Model Serial number Power input Liebert PCW - UM - 273895 - 04.10.2018...
  • Page 6 Digit 14 - Air Filter Efficiency F5 (EU5) dust spot F5 (EU5) dust spot + Clogged Filter Digit 15 - Coil (and Pipes) Standard Piping Bottom Standard Piping Top Standard Piping Left Liebert PCW - UM - 273895 - 04.10.2018...
  • Page 7 Liebert EC Fan 2.0 Standard Vertiv EC Fan Fix Speed Special Vertiv Digit 8 - Heaters No heaters 1 stage 2 stage Digit 9 - Packaging PLP And Pallet Cardboard and Wooden Crate Seaworthy Liebert PCW - UM - 273895 - 04.10.2018...

  • Page 8: Table Of Contents

    10.1 - Safety instructions ....................................16 10.2 - Spare parts .......................................16 10.3 - Maintenance schedule ..................................16 10.4 - Air filter check and replacement ...............................16 10.5 - EC fan replacement..................................17 10.6 - Dismantling the unit ..................................18 Liebert PCW - UM - 273895 - 04.10.2018...
  • Page 9 Enclosure A ................................A - 1 Enclosure B................................B - 1 Enclosure C................................C - 1 Enclosure D................................D - 1 Enclosure E ................................E - 1 Enclosure F ................................F - 1 Enclosure G ................................. G - 1 Liebert PCW - UM - 273895 - 04.10.2018...

  • Page 10: General Description

    (from Customer) stance: set points, proportional or proportional+integral tempera- ture, integrating factor and valve characteristics. It is also possible to manually adjust the valve with a suitable wrench. Liebert PCW - UM - 273895 - 04.10.2018...

  • Page 11: Operating Limits

    Damage should be PH081 immediately reported to the carrier and a damage claim filled in PH091 with a copy sent Vertiv or to your sales representative. PH111 2.3 - Packing material PH136 All material used to package this unit is recyclable.

  • Page 12: Recommended Unit Handling Equipment

    To move the Fan and the Coil Module of the Extended Height unit, exposing the protective corner and unit use the above instructions (point 1 to 5). side packaging planks. Liebert PCW - UM - 273895 - 04.10.2018...

  • Page 13: Unit Weight

    1) Place the two modules (coil module and fan top plenum) close to through the cable bushing into the final position. the coil module. See chapter 6 for Electrical connection details. Liebert PCW - UM - 273895 - 04.10.2018...

  • Page 14: Extended Height Unit: Downflow Up, Downflow Down

    Then run the EC Fan signal cable (and Electrical Heater cable if in- stalled) positioned in the fan module through the cable bushing into the coil module. See chapter 6 for Elec- trical connection details. Liebert PCW - UM - 273895 - 04.10.2018...

  • Page 15: Positioning

    4.2 - Positioning: Downflow Down. A raised floor is required for this installation. The fan section is in- staller completely under the floor allowing the correct airflow below the floor. See Enclosure C Liebert PCW - UM - 273895 - 04.10.2018...

  • Page 16: Water Connections

    It is useful to install a thermometer (4) and a manometer (5) on the conditioner inlet and outlet. • Install a water drain tap (6) at the lowest point in the circuit. • Fill the circuit with water/glycol (see Fig. b). Liebert PCW - UM - 273895 - 04.10.2018...

  • Page 17: Pipe Connection Extended Height Unit

    Filter check and replacement for details about Air filter removal). does not become rolled or pinched while installing the housing. Failure to follow this instruc- tion could cause damage to the gasket, resulting in joint leakage. Liebert PCW - UM - 273895 - 04.10.2018...

  • Page 18: Adding Ethylene Glycol

    • The hydraulic features of the system vary by adding glycol. Therefore check the head and the flow rate of the pump to be used. See Hydraulic drawings in Enclosure D. Liebert PCW - UM - 273895 - 04.10.2018...

  • Page 19: Electrical Connections

    The supply voltage and frequency are as indicated on the unit. 6.2 - Wye vs. Delta Connection Power Supply for The Liebert PCW EC Fan Model is designed to operate with Wye- connected power. It will not operate properly with Delta connected power.
  • Page 20 Std1st stage: connect the electrical heaters cables to the connector Xp5. • Opt.2nd stage, from PH045 to PH081: connect the elec- trical heaters cables to the connectors Xp5 and Xp6. • Electrical Heater thermostats (if installed) Liebert PCW - UM - 273895 - 04.10.2018...
  • Page 21 EC Fan signal Electrical Heater con- nectors Xp5, Xp6, Xp7 9) Put together the cables on the back of the electrical panel. Use appropriate cable ties to fix them to the electrical panel. Liebert PCW - UM - 273895 - 04.10.2018...

  • Page 22: Power Supply Cable Connection

    Connection for remote on- off must be done by the installer. • The General Alarm terminals allow remote alarm signaling. In case of short circuit, check the sticking of the involved switch and replace it. Liebert PCW - UM - 273895 - 04.10.2018...

  • Page 23: Starting And Stopping

    Unit operation is completely automatic. The below sequence ex- (fans) moving and with hot heating elements. plains how the unit operates : • The air, sucked in by the fan, enters the unit. Liebert PCW - UM - 273895 - 04.10.2018...

  • Page 24: Calibrations

    1. damage. PH035- 040- 046: in the options 2 way High Pressure Valve and 3 way High Pressure Valve, consider the units as PH045- PH201. Liebert PCW - UM - 273895 - 04.10.2018...

  • Page 25: Maintenance / Spare Parts

    All tasks and periods listed here are regulations from the manufacturer and need to be documented in an inspection report. All these tas.ks should be carried out only by an authorized and trained technician. We recommend the Vertiv Cus- tomer Service 10.4 - Air filter check and replacement...

  • Page 26: Upflow Units

    Downflow Down - remove floor panels positioned in front of the unit to get the access to the fan section frontal grid. Remove any obstacles in front of the fans to allow the fan extraction (e.g. the raised floor structure, piping) Liebert PCW - UM - 273895 - 04.10.2018...

  • Page 27: Dismantling The Unit

    At the end of the useful life,when the unit is dismantled, the operation must be carried out by specialized refrigerating tech- nicians. The unit shall be delivered to suitable centers specialized for the collection and disposal of equipment containing hazardous substances according to the national and European regulations. Liebert PCW - UM - 273895 - 04.10.2018...
  • Page 28 In case water loss needs to be refilled make sure the glycol concentration is correct. Check that the water circulation is in perfect order. Liebert PCW - UM - 273895 - 04.10.2018...
  • Page 29 This contains the same substances dissolved in the supply water, however in larger quantities; • It may reach a temperature of 100 ° C; • It is not toxic and can be drained into the sewerage system, category 3, EN 1717. Liebert PCW - UM - 273895 - 04.10.2018 A - 1...
  • Page 30 14 connection hose 5b fill hose 15 drain hose with siphon (not supplied) 5c drain pump and overflow outlet hose Fig. 1 - The humidifier and its components Supply limit Liebert PCW - UM - 273895 - 04.10.2018 A - 2...

  • Page 31: Start-Up And Operation

    Liebert PCW - UM - 273895 - 04.10.2018 A - 3...
  • Page 32 Supply tank & conductivity meter : check that there are no obstructions or solid particles and that the electrodes for measuring the con- ductivity are clean, remove any impurities and rinse. Hose kit: check that the hoses are free and do not contain impurities; remove any impurities and rinse. Liebert PCW - UM - 273895 - 04.10.2018 A - 4...
  • Page 33 0.75...35 mm PH 161 48 (36) 48 (36) 63 A “C” (40 A “C”) 0.75...35 mm PH 201 53 (41) 53 (41) 63 A “C” (50 A “C”) 0.75...35 mm Liebert PCW - UM - 273895 - 04.10.2018 B - 1...
  • Page 34 Ia (Art.413.1.4.1, CEI 64- 8); In case of frequent over- voltages with mains impulse, it is advisable to install a selective differential and to evaluate the need for adopting other devices. Liebert PCW - UM - 273895 - 04.10.2018 B - 2...
  • Page 35 1.30 0.94 PH 081 1.84 0.95 PH 091 1.88 0.94 Downflow Down PH 111 2.71 0.93 PH 136 3.88 0.93 PH 161 4.69 0.94 PH 201 12.0 7.80 0.94 Liebert PCW - UM - 273895 - 04.10.2018 B - 3...
  • Page 36 The EC fan settings can be modified acting on the control display (see iCOM manual) (*) Setting for Nominal Airflow at standard conditions: ESP: 20 Pa, Filters class F5 Liebert PCW - UM - 273895 - 04.10.2018 B - 4...

  • Page 37: Electrical Heating

    21.6 PH 066 PH 081 10.8 0.15 PH 091 PH 095 PH 100 PH 110 PH 145 PH 111 32.5 22.5 PH 136 PH 161 PH 170 PH 201 Liebert PCW - UM - 273895 - 04.10.2018 B - 5...
  • Page 38 Standard Pressure High Pres- Johnson Control sure ZD7881RT/ST Servomotor for 3- Siemens way hot water valve SFA71/18 ON-OFF PH025…PH201 action Siemens VXI 3 - way hot water 469.25 valve 1” Liebert PCW - UM - 273895 - 04.10.2018 B - 6...
  • Page 39 PH 170 3350 PH 046 1200 PH 066 1750 PH 081 2050 PH 091 2570 1970 PH 111 2550 PH 136 PH 161 2950 PH 201 3350 Liebert PCW - UM - 273895 - 04.10.2018 C - 1...
  • Page 40 In that case, the unit can be moved in the working position after installation / assembly procedures. Optional accessories - see details in Enclosures E. NA = Not Available Liebert PCW - UM - 273895 - 04.10.2018 C - 2...
  • Page 41 Fig. 1. Downflow units, dimensions for Piping Bottom Option (Top view) OCW2 Hole D 80 ICW2 OCW, OCW1 Holes D 48 ICW, ICW1 EC aux Hole 2 x D 36 Liebert PCW - UM - 273895 - 04.10.2018 D - 1...
  • Page 42 PH025 - PH030 Refrigerant and water connections PH025-PH030 downflow up, side view. FRONT FLOOR PH035 - PH040 - PH046 Refrigerant and water connections PH035-PH040-PH046 downflow up, side view. FRONT FLOOR Liebert PCW - UM - 273895 - 04.10.2018 D - 2...
  • Page 43 PH070 - PH080 - PH081 - PH091 - PH095 - PH100 - PH1 10 Refrigerant and water connections PH070-PH080-PH081-PH91-PH95-PH100-PH110-PH111-PH136-PH145-PH161-PH170-PH201 PH111 - PH136 - PH145 - PH161 -PH170 - PH201 downflow up, side view. FRONT FLOOR Liebert PCW - UM - 273895 - 04.10.2018 D - 3...
  • Page 44 1060 1565 1855 2385 Dimensions for Piping Top & Piping left Option (Fig. 2.) NA = Not Available Fig. 2. Downflow units, dimensions for Top & Piping left Option Liebert PCW - UM - 273895 - 04.10.2018 D - 4...
  • Page 45 CD* only for unit from PH095 toPH110 ** VICTAULIC Connection. ® *** Optional. Threaded union on request Tab. 3 - Hydraulic and electrical connections – Upflow versions (O 48 x 2) Liebert PCW - UM - 273895 - 04.10.2018 D - 5...
  • Page 46 1750 2050 2550 Dimensions for Piping Top & Piping left Option (Fig. 4.) NA = Not Available Fig. 4. Upflow unit, Dimensions for Piping Top & Piping left Option Liebert PCW - UM - 273895 - 04.10.2018 D - 6...
  • Page 47 Chilled water 3- way valve Reheating coil (optional) Manual bleed valve On/off 3- way valve (optional) Valve fittings Flow transmitter (optional) Blind disk - only with optional 2- way valve Liebert PCW - UM - 273895 - 04.10.2018 D - 7...
  • Page 48 Chilled water 3- way valve Reheating coil (optional) Manual bleed valve On/off 3- way valve (optional) Valve fittings Flow transmitter (optional) Blind disk - only with optional 2- way valve Liebert PCW - UM - 273895 - 04.10.2018 D - 8...
  • Page 49 Blind disk - only with optional 2- way valve Chilled water 3- way valve Water temperature sensor (optional) Manual bleed valve Reheating coil (optional) Valve fittings On/off 3- way valve (optional) Liebert PCW - UM - 273895 - 04.10.2018 D - 9...
  • Page 50 E.1. Kit Legs (Not Available for PH 025 - 030) E.2. Baseframe Legs kit can be supplied on request to support Liebert PCW when A base frame can be supplied on request to support Liebert PCW installed with a raised floor. The legs are fixed with the unit frame when installed with a raised floor.
  • Page 51 As the fresh air intake is positioned close to the fan suction, it will easily mix with the recirculation air. Fresh air module positions Up ow Down ow PH025...PH030 PH025...PH030 Up ow Down ow PH035...PH091 PH035...PH091 Up ow Down ow PH095...PH110 PH095...PH201 Liebert PCW - UM - 273895 - 04.10.2018 E - 2...
  • Page 52 Despite a small additional pressure drop, these cartridges provide material of class 0 (ISO 1182.2), density 30 kg/m . It is equipped a remarkable sound power level reduction. with a double deflection grill. Liebert PCW - UM - 273895 - 04.10.2018 E - 3...
  • Page 53 Floor tiles support kit can be supplied on request to support tiles ed load on the perimeter is 180 kg/m. around Liebert PCW Downflow Down, when installed with a raised I.e.: on the lateral side, 870mmlong, the maximum admitted distrib- floor.
  • Page 54 Fans maintenance kit can be supplied on request to support tiles With a correct installation, the maximum admitted vertical distribut- on Liebert PCW Downflow Down when installed with a raised floor. ed load is 600 kg/m Fans maintenance kit allows maintenance operations, in particular Footboards are designed to support distributed load as indicated fans replacement, when the fans are installed below the floor level.
  • Page 55 Fig. 1 - The infrared humidifier and its components Liebert PCW - UM - 273895 - 04.10.2018 F - 1...
  • Page 56 Using a continuity meter, locate the burned- out lamp. Remove the lamp brackets under the lamps. Loosen the two screws securing the lamp lead wires to the junction block. Pull the bulb straight down and discard it. Liebert PCW - UM - 273895 - 04.10.2018 F - 2...
  • Page 57 Humidity contact not pulling in Check for open humidifier safety stat Replace bulb. Loosen lead on old bulb. Trim excess lead length on new bulb to Humidifier bulb burned out avoid shorts. Liebert PCW - UM - 273895 - 04.10.2018 F - 3...

  • Page 58: Power Supplies

    The relevant piping connections shall be in material resistant to fully demineralized water. Refer to HSU08RM000 manual for details. Fig. 1 - Ultrasonic humidifier module on the raised floor, frontal and lateral views Liebert PCW - UM - 273895 - 04.10.2018 G - 1...
  • Page 59 16. check valve (to be provided by the Customer) cable 17. damper water drain 18. humidifier drain pan water drain Fig. 3 - The Ultrasonic humidifier and its components Liebert PCW - UM - 273895 - 04.10.2018 G - 2...
  • Page 60 G.4.1 - Periodical checks Check drain lines and trap for clogs Check/clean pan for dust Check wire connections (inside humidifier box) Check status of humidifier air filters Liebert PCW - UM - 273895 - 04.10.2018 G - 3...
  • Page 61 Fabrikant - - Producent Κατασκεναστηζ Vertiv S.r.l. - Zona Industriale Tognana Via Leonardo da Vinci, 16/18 - 35028 Piove di Sacco - Padova (Italy) Il Fabbricante dichiara che questo prodotto è conforme alle direttive Europee: The Manufacturer hereby declares that this product conforms to the European Union directives: Der Hersteller erklärt hiermit, dass dieses Produkt den Anforderungen der Europäischen Richtlinien gerecht wird:...
  • Page 62 Leonardo Da Vinci 16/18, Zona Industriale Tognana, 35028 Piove di Sacco (PD) Italy, Tel: +39 049 9719 111, Fax: +39 049 5841 257 © 2016 Vertiv Co. All rights reserved. Vertiv, the Vertiv logo and Vertiv Liebert PCW are trademarks or registered trademarks of Vertiv Co. All other names and logos referred to are trade names, trademarks or registered trademarks of their respective owners.

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