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Related Manuals for Vertiv Liebert PDX
Summary of Contents for Vertiv Liebert PDX
- Page 1 Liebert ® 80-165 kW Indoor Room Cooling Units with Modulating Capacity Econophase Version - 50 Hz User Manual English, Cod. 265133, rev. 29.08.2019 Use only with: ● Liebert MC, EconoPhase Version ® ● Liebert EconoPhase, Pumped Refrigerant Module ®...
- Page 2 Liebert PDX, EconoPhase Version - UM - 265133 - 29.08.2019 ®...
- Page 3 IMPORTANT SAFETY INSTRUCTIONS SAVE THESE INSTRUCTIONS This document, written in English, is the original version. Conventions DANGER indicates a hazardous situation which, if not avoided, will result in death or serious injury. WARNING indicates a hazardous situation that, if not avoided, could result in death or serious injury. CAUTION indicates a hazardous situation that, if not avoided, may result in minor or moderate injury.
- Page 4 WARNING The supply cable of the main switch contains live high-voltage. • The manufacturer highly recommends that the final customer installs on site an external main switch, easy to reach and to facilitate a quick and easy shutdown enabling the power of the unit to be cut off. Refer to the unit electrical schematics for the installation.
- Page 5 Attention: data relevant to the unit supplied is indicated on the inboard label (see the blank facsimile below). Data in the manual is referred to standard conditions and can be modified without any advance notice. POS. DESCRIPTION Compressor Full Load Ampere [A] Compressor Locked Rotor Ampere [A] Compressor quantity Evaporator fan Full Load Ampere [A]...
- Page 6 Digit 8 - Airflow Digit 16 - Colour L = Premium Fan Module 1 = Black Vertiv RAL 7021 Digit 9 - Main Power Supply Digit 17 - High Voltage Option 3 = Single 400V / 3ph / 50 Hz + N...
- Page 7 1 - Liebert PDX EconoPhase ® operation when the outdoor temperature is low enough to provide the required temperature difference between the inside air and the System description outside air, providing significant energy savings because there is no need to operate the compressor. At lower temperatures, the system switches one or both circuits from Compressor Mode to Pump Mode.
- Page 8 1.2 - Liebert PDX EconoPhase version can enhance efficiency and life of the system. With the Liebert ® ® PDX range we are able to manage unexpected very high ambient The Liebert PDX is a full- featured precision air conditioner temperatures, maintaining the system active, reducing HP alarm ®...
- Page 9 Fig. 2 - Liebert EconoPhase module • Unit/Module Communications - A CANbus connection links the Liebert PDX and the air-cooled condenser to achieve the most efficient operation as well as the condenser and the Liebert EconoPhase module.
- Page 10 Fig.3 - Compressorized operation flow path Check Valve Condenser Solenoid Valve Pump Check Valve Electronic Expansion Check Valve Valve Compressor Evaporator Fig.4 - Pump operation flow path Check Valve Condenser Solenoid Pump Valve Check Valve Electronic Expansion Check Valve Valve Compressor Evaporator Liebert...
- Page 11 P78 Pins 2 and 3. • Environmental and Safety See Fig. 5 for CANbus connections, jumper and DIP switch settings. • Vertiv recommends routing cable inside conduit where ® • Length Restrictions the cable exits the building to outdoor units, between •...
- Page 12 1.8 - Description of Liebert EconoPhase Operation • Mixed Mode: The pump in Circuit 1 is On and the compressor(s) ® in Circuit 2 is On. Some systems may not have Mixed Mode capability, depending on the manufacture date. Contact the The Liebert EconoPhase unit enables the Liebert PDX system...
- Page 13 Tab. 1 - Description of events and actions in Figure 6 Event Condition to Trigger Action Action Pump 2 Off; and (Pump 1 at minimum speed for 60 sec.; and B to A Pump 1 turns Off; Pump 2 remains Off Delta T [indoor air temperature - setpoint] <...
- Page 14 NOTE At startup and at switchover from compressor operation to pump While the outdoor loop temperature could be close to the same operation, more time is allowed to bring the temperature under con- on both circuits, the indoor loop temperatures (in most cases) and trol, but the temperature will never be allowed to go outside the pressures in Circuit 1 will be higher than in Circuit 2 because of cooling proportional band.
- Page 15 Fig.7 - Piping schematic EconoPhase Unit Differential Differential Check Valve Check Valve Factory installed Check Valve Relief Valve Liebert MC Condenser Receiver Solenoid Ball Ball Valve Valve Valve Hot Gas Includes Factory Traps Discharge No External Trap Required PX****P room unit Liquid Evaporator Oil trap every...
- Page 16 1.9 - Operating limits Remote condenser Vertiv fan speed control (VARIEX) required. The units are designed to operate within working ranges (see Tab. 3). It is standard available on the MC Condenser EconoPhase These limits are referred to new machines or to those that have version been correctly installed and serviced.
- Page 17 2 - Preliminary operations 2.5 - Handling the Unit While Packaged • Transport unit using a fork lift or pallet jack; otherwise use a crane with slings, in this case use spreader bars to avoid risk 2.1 - Safety Information of crushing.
- Page 18 2.7 - Moving to the Installation Location with Piano 2.8 - Unit Weight Jacks Tab. 4 - Unit Weight Make sure the floor can support the unit when being moved Models A [kg] Packaging [kg] with piano jacks. Adequate support (e.g. metal plates) should Standard Weight Unit be used to cover the floor to distribute the weight on the floor.
- Page 19 4 - Refrigeration connections Use sling and a 4 point lifting bar (not supplied) to lift the unit 4.1 - Refrigeration pipeline connections and place it on the floor in the right position. The air condensing units are delivered helium- pressurized at 2 bar.
- Page 20 Fig. 8 - Recommended condenser and Liebert EconoPhase™ unit locations, typical unit arrangement diagram layout ® Top View Circuit 1 Liquid Line Circuit 2 to Liebert EconoPhase from Bottom of Air-Cooled Air-Cooled Receiver Condenser Condenser Entering Hot Gas Line Entering Hot Gas Line CIRCUIT 1 1067mm CIRCUIT 2...
- Page 21 Tab. 5 - Condenser positioning 4.1.3 - Installing pipelines THE FOLLOWING OPERATIONS MUST BE CARRIED OUT BY CONDENSER CONDENSER ABOVE AN EXPERIENCED REFRIGERATION TECHNICIAN. POSITION CONDITIONER NOTICE: required INSULATION The discharge operation of the room unit pressurized with liq. required helium (at 2 bar) and the unbrazing of the bottoms from the connections must be carried out as last operations, immediately followed by the connection and emptying of the...
- Page 22 Tab. 7 - Weight of refrigerant contained in piping during operation EXTERNAL PIPE DIAMETER gas(*) liquid (+), at different condensing temperatures R410A (kg/m) (mm) 35.0 0C 46.0 0C 57.0 0C 22 x 1.5 0.027 0.286 0.265 0.240 28 x 1.5 0.047 0.496 0.459...
- Page 23 4.2 - Vacuum creation and refrigerant charge Break the vacuum as follows: a) Close the cock (10a) for the vacuum pump (10). NOTICE: Check the refrigerant type to be used b) Open the cock of the refrigerant cylinder (11a) until the on the data plate of the air conditioner and on the system reaches a pressure value of about 1 bar.
- Page 24 Fig. 10 - Condensate drain • Delta with corner ground • Delta with grounded center tap. If the unit must be installed in the IT System, contact Vertiv Technical department prior to installation. 6.3 - Power supply cable connection. min. •...
- Page 25 Fig. 13 - Available terminals AUXILIARY TERMINAL BOX 4 compressors (Cooling + Electr. heating + Humidi cation) remote on- o 0394 (CLOSE = ON) clogged lter (CF) (CLOSE = OK) (*) water leakage (LWD) 400 (NC) GENERAL ALARM 401 (C) (400, 401 NC = alarm or unit o ) 402 (NO) WARNING...
- Page 26 7 - Start-up 20. Once the system is operating under load, check the various components, as follows: • Verify that the fans are operating properly. 7.1 - First start-up (or after long standstill) • Ensure that the temperature and relative humidity are being controlled, and that the humidifier (optional) and heating steps TO PREVENT COMPRESSOR DAMAGE THE CRANKCASE(S) (optional) operate when required.
- Page 27 Fig. 14 - Refrigerant line components different electrical sources. It is possible to chose between different solutions: • Dual Power Supply Parallel: 2 separate power supplies: during normal working mode both are present, during emergency situation only the main one is present. This means that during emergency mode full cooling redundancy is granted disabling heating and humidifying.
- Page 28 9.2 - Environment protection WARNING: Before any calibration with the unit operating, remove the call for humidification and A misuse or an incorrect calibration of the unit leads to an increased electrical heating at the control. energy consumption, resulting in an economic and environmental 9.1 - Water leakage sensor (Liquistat) damage.
- Page 29 10.2 - Spare parts Only original spare parts made by Vertiv may be used. Using third party material can invalidate the warranty. When making inquiries always refer to the ”Component List” supplied with the equipment and specify the model number, serial number and, if available, also the part number.
- Page 30 10.5 - EC fan replacement WARNING! There is a risk of the fans and panel falling down and causing an injury during the replacement operation. Due to the weight of the fans (approx. 35 kg) and the panel (up to 25 kg), two technicians are required to carry out the fan replacement.
- Page 31 Maintenance schedule MAINTENANCE PERIOD EVERY COMPONENT FANS Check for soiling, damage corrosion, and proper xing. Check bearings noise. WARNING: do not reach into the fan Measure the current and power consumption. while the fan Cleaning to preserve the function. wheel is runnin g. Check for soiling, damage, corrosion.
- Page 32 10.6 - Refrigeration circuit WHEN REPAIRING THE REFRIGERATION CIRCUIT, COLLECT ALL REFRIGERANT IN A CONTAINER: DO NOT ALLOW IT TO ESCAPE. • When removing (for repairs) or charging refrigerant, it must always be done on both the high and low pressure sides of the compressor simultaneously.
- Page 33 10.8 - Regulation (EU) no. 517/2014 (F-gas) Stationary air conditioners placed into the European Community market and operating with fluorinated greenhouse gases (F- gas, such as R407C, R134a, R410A), they have to comply since Jan 1, 2015 with the F- gas Regulation (EU) No. 517/2014. It replaces the Re.
- Page 34 Enclosure A - Electrode Humidifier A.1 - Electrode humidifier The operation of immersed electrode humidifiers is based on a very simple physical principle. As common drinking water contains a certain quantity of dissolved mineral salts, and is consequently slightly conductive, applying a voltage to metal electrodes immersed in the water creates an electric current that heats the water until producing steam (Joule effect).
- Page 35 Enclosure A - Electrode Humidifier Important: For drain water connection see details in Fig. 1: • Use a drain hose Ø 32 mm, maximum length 10 m with minimum5% gradient, don’t make siphon on this hose to avoid back pres- sures in the drain piping.
- Page 36 Enclosure A - Electrode Humidifier A.3 - Start - up and operation A.3.1 - Start - up Before using the humidifier, check the following: • Supply and drain connections. • That the cut- off tap is open. • All wiring. •...
- Page 37 Enclosure A - Electrode Humidifier reach the stage where they also stick to the inside wall of the cylinder; in the event of especially conductive deposits, the consequent heat produced may overheat the plastic and melt it, and, in more severe cases,puncture the cylinder, allowing water to leak back into the tank.
- Page 38 Enclosure B - Technical data table Tab. 1 - Electrical data with premium fan module DIGITAL SCROLL Cooling System min./max. Cu Configuration Model Power supply Residual- Current Circuit Breakers cable size Inn = 0.3A (400V)* PX082 100A “C” 10..70mm PX094 100A “C”...
- Page 39 Enclosure B - Technical data table COMPRESSOR Component (400V / 3Ph / 50Hz) Nominal power** Winding resistance OA** [A] FLA [A] LRA [A] [kW] (Ohm) Model Digital Scroll PX082 16.56+16.5 2x15+2x15 2x75+2x75 9.35+9.29 (2.26+2.27)+(2.26+2.27) PX094 15+14.90 2x15+2x15 2x101+2x101 10.68+10.64 (1.79+1.79)+(1.79+1.79) version with PX104 21.76+21.85...
- Page 40 Enclosure B - Technical data table Tab. 5 - Calibrations of electrical components COMPONENT SETTING NOTES CONTACT Range 0-45 barg High Pressure transducer (HP) Output 0-5 V (see Control manual) Low Pressure transducer Range 0-17.3 barg (LP) (see Control manual) Output 0-5 V STOP 37.0...
- Page 41 Enclosure B - Technical data table Tab. 7 - R410A refrigerant and oil charge BASE OIL CHARGE (1) BASE REFRIGERANT [Liter, oil within compressor, Max System Refrigerant Oil to be added over the CHARGE (2) each circuit] Charge before oil addition Max System Refrigerant MODEL [kg - each circuit]...
- Page 42 Enclosure C - Installation drawings Fig. 1 Overall dimensions and Service Area DOWNFLOW DOWN DOWNFLOW UP Floor Level Floor Level Tab. 1 - Overall dimensions - Service area (referring to Fig. 1) Unit Options AVAILABLE PLENUM HEIGHTS: D Downflow Downflow Models [mm] Down...
- Page 43 Enclosure C - Installation drawings Fig. 2 Hole in the floor for Downflow versions Downflow Up Downflow Down Tab. 2 - Hole in the floor for Downflow units, dimensions in mm PX150 Configuration Unit PX082 PX094 PX104 PX120 PX165 2450 3250 2526 3326...
- Page 44 Enclosure D - Refrigerant, hydraulic and electrical connections Tab. 1 - Electrical data with basic fan module PX082 PX094 PX104 PX120 PX150 PX165 Model Unit Connection ECONOPHASE Refrigerant liquid O.D. Ø18 mm O.D. Ø18 mm O.D. Ø18 mm O.D. Ø18 mm O.D.
- Page 45 Enclosure D - Refrigerant, hydraulic and electrical connections Fig. 3 - Refrigerant circuit EconoPhase version - Dual circuits - Tandem DIGITAL SCROLL compressors - EEV Ø Ø Ø Ø Ø Ø TANDEM TANDEM Ø Ø (FOR PX120) (FOR PX082-094-104) (FOR PX120) (FOR PX082-094-104) Ø...
- Page 46 Enclosure E - Accessories E.1 Kit Legs E.2 Baseframe Legs kit can be supplied on request to support Liebert PDX when A base frame can be supplied on request to support Liebert ® ® installed with a raised floor. The legs are fixed with the unit frame when installed with a raised floor.
- Page 47 Enclosure E - Accessories E.5 Hood with high efficiency air filter E.6 Plenum with silencing cartridges Optional high efficiency filters, filtration class F6, F7 and F9 in These are special cartridges made of self - extinguishing material accordance with the CEN EN 779 standard, are made of fiberglass with a high noise attenuation capacity.
- Page 48 Enclosure E - Accessories E.9 Fans maintenance kit Fans maintenance kit can be supplied on request to support tiles With a correct installation, the maximum admitted vertical on Liebert PDX Downflow Down when installed with a raised floor. distributed load is 600 kg/m ®...
- Page 49 Enclosure F - Infrared Humidifier F. 1 - Infrared Humidifier The infrared humidifier design consists of quartz lamps mounted above a stainless steel water reservoir. The lamps never come in contact with the water. When humidification of room air is required, infrared rays generate water vapor-without impurities or odor, within seconds. In order to obtain optimum performance from the humidifier it is advisable to read this manual carefully.
- Page 50 Enclosure F - Infrared Humidifier F. 3 - Start - up and operation F. 3.1 - Start - up Before using the humidifier, check the following: • Supply and drain connections. • That the cut- off tap is open. • All wiring.
- Page 51 Enclosure F - Infrared Humidifier F. 4.2 - Changing Humidifier Lamps CAUTION: Touching quartz lamps with bare hands will severely shorten bulb life. Skin oils create hot spots on lamp surface. Wear clean cotton gloves when handling lamps. Remove the humidifier pan (see F.4.1 - Cleaning Humidifier Pan and Float Switch, Steps 1 to 11). Disconnect power from the unit.
- Page 52 Enclosure G - Ultrasonic Humidifier G. 1 - Ultrasonic Humidifier Ultrasonic Humidifier operates on the principle of ultrasonic nebulization. A 48 VAC voltage is rectified on an oscillator circuit and transformed into a high frequency signal of 1.65MHz. This signal is transmitted to a transducer installed in the water which then transforms the signal into high frequency automatic vibrations. The built-in transducers - also called ”thickness transducers”...
- Page 53 Enclosure G - Ultrasonic Humidifier Fig. 2 - Ultrasonic humidifier module in the raised floor, frontal and lateral views Supply Water. • Supply fully demineralized water with conductivity<5 μS/cm. If demineralized water is not available, provided mineralizer (not supplied); • Water pressure from 50 kPa to 500 kPa;...
- Page 54 Enclosure G - Ultrasonic Humidifier G. 3 - Start - up and operation G. 3.1 - Start - up Before using the humidifier, check the following: • Supply and drain connections. • That the cut- off tap is open. • All wiring.
- Page 56 , via 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 HPF 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.