Vertiv Liebert PFD Installer/User Manual
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Vertiv Liebert PFD Installer/User Manual

Vertiv Liebert PFD Installer/User Manual

Prop fan digital condensing unit thermal management systems
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Liebert®
PFD™ Prop Fan Digital Condensing Unit
Thermal Management Systems
Installer/User Guide

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Summary of Contents for Vertiv Liebert PFD

  • Page 1 Liebert® PFD™ Prop Fan Digital Condensing Unit Thermal Management Systems Installer/User Guide...
  • Page 2 The products covered by this instruction manual are manufactured and/or sold by Vertiv This document is the property of Vertiv and contains confidential and proprietary information owned by Vertiv. Any copying, use or disclosure of it without the written permission of Vertiv is strictly prohibited.

  • Page 3: Table Of Contents

    8.2.2 Replacement Compressors 8.2.3 Compressor Motor Burnout 8.2.4 Unloading Solenoid(s) on a Digital-scroll Compressor 8.2.5 Replacing the Compressor 8.3 Condensing Unit Maintenance 9 Troubleshooting Appendices Appendix A: Technical Support and Contacts Appendix B: Submittal Drawings Vertiv | Liebert® PFD™ Installer/User Guide |...
  • Page 4 Vertiv | Liebert® PFD™ Installer/User Guide |...

  • Page 5: Important Safety Instructions

    1 IMPORTANT SAFETY INSTRUCTIONS SAVE THESE INSTRUCTIONS This manual contains important safety instructions that should be followed during the installation and maintenance of the Liebert® PFD. Read this manual thoroughly before attempting to install or operate this unit. Only qualified personnel should move, install or service this equipment. Adhere to all warnings, cautions, notices and installation, operating and safety instructions on the unit and in this manual.

  • Page 6: Agency Listed

    1.1 Agency Listed Standard 60-Hz units are CSA Certified to the harmonized U.S. and Canadian product safety standard CSA C22.2 No 236/UL 1995 for “Heating and Cooling Equipment” and are marked with the CSA c-us logo. Vertiv | Liebert® PFD™ Installer/User Guide...

  • Page 7: Nomenclature And Components

    2 NOMENCLATURE AND COMPONENTS This section describes the model number for Liebert® PFD units and components. 2.1 PFD Model Number Nomenclature Table 2.2 below describes each digit of the model number. Table 2.1 Prop-fan Condensing Unit Model-number Example — Table 2.2 Model-number Digit Definitions for Outdoor, Prop-fan Condensing Units Digit and Description Digits 1, 2 = The base unit PF = Prop-fan condensing unit...

  • Page 8: Component Location

    The unit component locations are described in the submittal documents included in the Submittal Drawings on page 35. The following tables list the relevant documents by number and title. Table 2.3 Component-location Drawings Document Number Title DPN004180 PFD Condensing Unit, 3-, 4-, and 5-ton Vertiv | Liebert® PFD™ Installer/User Guide...

  • Page 9: Pre-Installation Preparation And Guidelines

    PFD and connected evaporator unit. • When applications do not meet or exceed any of these specifications, contact your Vertiv representative. 3.1 Planning Dimensions...

  • Page 10: Connections And System Setup

    When the unit arrives, inspect all items for any visible or concealed damage. Report any damage to the carrier immediately and file a damage claim. Send a copy of the claim to your Vertiv representative. If possible, maintain equipment and packaging until it is at the installation location.

  • Page 11: Piping And Refrigerant Requirements

    4 PIPING AND REFRIGERANT REQUIREMENTS All refrigeration connections to the unit are sweat copper. Factory-installed piping brackets must not be removed. Field-installed piping must be installed in accordance with local codes and must be properly assembled, supported, isolated and insulated. Avoid piping runs through noise-sensitive areas, such as office walls and conference rooms.

  • Page 12: Refrigerant Piping Guidelines For Air-Cooled Systems

    Avoid piping runs through noise-sensitive areas. • Do not run piping directly in front of discharge air stream. • Refrigerant oil – do not mix oil types. Refer to ASHRAE Refrigeration Handbook for general, good-practice refrigeration piping. Vertiv | Liebert® PFD™ Installer/User Guide...

  • Page 13: Piping When Condensing Unit Is Above Or Below Evaporator

    NOTE: All indoor and outdoor suction-line piping must have 1/2 in. minimum of insulation. All outdoor insulation must be UV and ozone resistant. NOTE: Proper safety equipment and proper refrigeration tools are required when working with R-410A refrigerant. Check unit serial tag for correct refrigerant type before topping-off or recharging a system. NOTE: Refrigerant R-410A uses a POE (polyolester) lubricant.

  • Page 14: Refrigerant-Line Sizes And Equivalent Lengths

    Determine the charge for your units by model number from the following tables. 2. Determine the charge for the piping by line size and length. 3. Add these all together to obtain the total refrigerant charge for your system. Vertiv | Liebert® PFD™ Installer/User Guide...
  • Page 15 Table 4.5  Indoor Evaporator Approximate R-410A refrigerant charge Model # Charge, lb (kg) MT036HE 1 (0.45) MT048HE 2.2 (1.0) MT060HE 2.2 (1.0) Table 4.6 Interconnecting piping refrigerant charge for R-410A, lb per 100 ft (kg per 30 m) Line Size, Liquid Line, lb (kg) Suction Line, lb (kg) O.D., in.
  • Page 16 Remove the solenoid-valve holding coil then apply solenoid-valve service magnet to the valve. External equalizer Sensing bulb Suction-pressure transducer Suction line Schrader port with valve core Digital-scroll compressor Discharge-temperature thermistor High-pressure switch Condenser coil 3-way head-pressure control valve Vertiv | Liebert® PFD™ Installer/User Guide...
  • Page 17 Item Description Check valve Pressure-balancing valve Sight glass Pressure-relief valve Lee-Temp receiver Receiver-heater pressure-limiting switch Schrader port with valve core NOTE: The system includes a factory-installed Schrader valve with core in the liquid line downstream of the receiver. Proper evacuation of the condenser side of the system can be accomplished only using the downstream Schrader valve.
  • Page 18 Check the discharge pressure and adjust the coil restrictions to maintain 418 psig (2882 kPa). 5. After conditions have stabilized, restrict the coil, if required, to maintain 418 psig (2882 kPa) discharge pressure and verify that the charge level is in the middle of the sight glass. Vertiv | Liebert® PFD™ Installer/User Guide...

  • Page 19: Additional Oil Requirements For Digital-Scroll Compressors

    12 (350) 18 (530) * System Charge = indoor unit + condensing unit + refrigerant lines.    For system charges over 80lb. (36.3 kg), consult your Vertiv representative. Source: DPN003950 Rev 5. Documenting Refrigerant Charge and Oil Addition When the unit is charged, you must record the total system refrigerant charge value on the condensing unit's serial tag.
  • Page 20 This page intentionally left blank Vertiv | Liebert® PFD™ Installer/User Guide...

  • Page 21: Electrical Connection Requirements

    5 ELECTRICAL CONNECTION REQUIREMENTS WARNING! Arc flash and electric shock hazard. Open all local and remote electric power-supply disconnect switches, verify with a voltmeter that power is Off and wear appropriate, OSHA-approved personal protective equipment (PPE) per NFPA 70E before working within the electric control enclosure.

  • Page 22: Low-Voltage, Control Connections

    Table 5.2 Recommended minimum wire size between indoor and outdoor units Max. Distance, * ft (m) Min. Wire Gauge, AWG (mm2) 50 (15) 20 (0.75) 100 (30) 18 (1.0) 150 (45) 16 (1.5) * One-way control wire run between outdoor condensing unit and evaporator. Vertiv | Liebert® PFD™ Installer/User Guide...

  • Page 23: Checklist For Completed Installation

    6 CHECKLIST FOR COMPLETED INSTALLATION All items are unpacked and checked. 2. Proper clearances for service access have been maintained around the equipment. 3. Equipment is level and mounting fasteners are tight. 4. Piping completed to refrigerant loop. 5. All piping connections are leak-free. 6.
  • Page 24 This page intentionally left blank Vertiv | Liebert® PFD™ Installer/User Guide...

  • Page 25: Initial Start-Up Checks And Commissioning Procedure For Warranty Inspection

    7 INITIAL START-UP CHECKS AND COMMISSIONING PROCEDURE FOR WARRANTY INSPECTION WARNING! Arc flash and electric shock hazard. Open all local and remote electric power-supply disconnect switches, verify with a voltmeter that power is Off and wear appropriate, OSHA-approved personal protective equipment (PPE) per NFPA 70E before working within the electric control enclosure.
  • Page 26 This page intentionally left blank Vertiv | Liebert® PFD™ Installer/User Guide...

  • Page 27: Maintenance

    See the Liebert® iCOM™ user manual for instructions on using the controller to predict some service maintenance intervals. • We recommend the use of trained and authorized service personnel, extended service contracts and factory-specified replacement parts. Contact your Vertiv sales representative. 8 Maintenance...

  • Page 28: General Maintenance

    Source: DPN003950. Rev.5 8.2.2 Replacement Compressors Replacement compressors are available through your Vertiv sales office. If the unit is under warranty, the replacement compressor must be obtained from and the original compressor returned to your local Vertiv sales office. Compressors are shipped in reusable packaging, and the original compressor should be returned in the same packaging.

  • Page 29: Compressor Motor Burnout

    Consult the factory for compressor maintenance. Do not attempt to remove the compressor without first contacting Vertiv support at 1-800-543-2778. 8.2.4 Unloading Solenoid(s) on a Digital-scroll Compressor When replacing a digital-scroll compressor, the digital solenoid valve and coil must be replaced. The compressor and valve kit are shipped separately.

  • Page 30: Condensing Unit Maintenance

    Periodically consider commercial cleaning of coil surface • Inspect fans, motors and controls for proper operation. • Check all piping and capillaries for proper support. • Inspect for leaks. • Check contactors for pitting. Replace if pitted. Vertiv | Liebert® PFD™ Installer/User Guide...

  • Page 31: Troubleshooting

    9 TROUBLESHOOTING Table 9.1 below, lists problems you may encounter, the possible cause, and a suggested remedy. Table 9.1 Troubleshooting Problem Cause Remedy No power to unit Check voltage at input terminal block. Check for 24 VAC ±2 VAC at control connections 1 & 2. If there is voltage, then: •...
  • Page 32 Single phasing Check voltage across all 3 legs at contactor. Correct source of problem. Check control panel for welded contactor Motor burnout Replace defective components. contacts or welded overload contacts. Vertiv | Liebert® PFD™ Installer/User Guide...

  • Page 33: Appendices

    APPENDICES Appendix A: Technical Support and Contacts A.1 Technical Support/Service in the United States Vertiv™ Corporation 24x7 dispatch of technicians for all products. 1-800-543-2378 Liebert® Thermal Management Products 1-800-543-2778 Liebert® Channel Products 1-800-222-5877 Liebert® AC and DC Power Products 1-800-543-2378 A.2 Locations...
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  • Page 35: Appendix B: Submittal Drawings

    Appendix B: Submittal Drawings The submittal drawings are in the order of document part number (DPN). Table B.1 below, groups the drawings by topic/application. Table B.1 Submittal-drawings Contents Document Number Title PFD Component Location DPN004180 PFD Condensing Unit, 3-, 4-, and 5-ton PFD Planning Dimensions DPN004058 Cabinet dimensions, 5-ton, top discharge...
  • Page 36 This page intentionally left blank Vertiv | Liebert® PFD™ Installer/User Guide...
  • Page 37 LIEBERT PFD CABINET DIMENSIONAL DATA 5 TON HIGH AMBIENT/QUIET-LINE OUTDOOR CONDENSING UNIT TOP AIR DISCHARGE Top Air Discharge 18" (457mm) min. clearance required for proper air flow on both air inlet sides Air Inlet 35 15/16" 913mm Air Inlet 24" (610mm) min. clearance recommended...
  • Page 38 LIEBERT PFD PRIMARY CONNECTION LOCATIONS PRIMARY CONNECTION LOCATIONS 5 TON HIGH AMBIENT/QUIET-LINE OUTDOOR CONDENSING UNIT W/ TOP AIR DISCHARGE 1" (25 mm) Dia. Electrical Entrance for High Voltage Connection 3/4" (17mm) Dia. Electrical Entrance for Low Voltage Connection 2" 50mm 6"...
  • Page 39 LIEBERT MINI-MATE VARIABLE CAPACITY GENERAL ARRANGEMENT SPLIT SYSTEMS W/ AIR COOLED CONDENSING UNIT Schrader Port with Valve Core High Pressure Cut Out Switch Condenser Coil Digital Scroll Compressor Discharge Schrader Port Temperature with Valve Core Thermistor Atmospheric Pressure Suction Line Relief Valve 3 - Way Head Pressure...
  • Page 40 LIEBERT PFD GENERAL PIPING ARRANGEMENT CONDENSING UNIT Condenser Coil Schrader Port With Valve Core High Pressure Switch Digital Discharge Compressor Temperature Thermistor Schrader Port With Valve Core Atmospheric Pressure Relief Valve 3 - Way Head Pressure Suction Line Control Valve...
  • Page 41 LIEBERT PFD CABINET DIMENSIONAL DATA OUTDOOR CONDENSING UNIT W/ HORIZONTAL AIR DISCHARGE Air Discharge 18" (457mm) min. clearance required for proper air flow on both air inlet and discharge sides Air Inlet Removable Panel - Access to refrigeration components, 24" (610mm) min. clearance recommended...
  • Page 42 LIEBERT PFD PRIMARY CONNECTION LOCATIONS CONDENSING UNIT W/ HORIZONTAL AIR DISCHARGE Removable Panel - Access to refrigeration components, electrical components and connections 1" (25 mm) Dia. Electrical Entrance for High Voltage Connection 3/4" (17mm) Dia. Electrical Entrance for Low Voltage Connection...
  • Page 43 LIEBERT PFD OPTIONAL ANCHORAGE PLAN OUTDOOR CONDENSING UNIT WITH HORIZONTAL AIR DISCHARGE Rear of Unit Receiver Coil Front of Typ. (4) places Unit TOP VIEW Some Parts not Shown for Clarity DIMENSIONAL DATA in. (mm) MODEL NUMBERS PFD037A-L 9-9/16 (243) 37-1/8 (943) 2-1/4 (57)
  • Page 44 LIEBERT PFD ELECTRICAL FIELD CONNECTIONS 5 TON HIGH AMBIENT/QUIET-LINE OUTDOOR CONDENSING UNIT W/ TOP AIR DISCHARGE Electrical Entrance for High Voltage Connection Three phase electric service not provided by Liebert. Electrical Entrance for Low Voltage Connection Factory wired to components on electric panel.
  • Page 45 LIEBERT PFD ELECTRICAL FIELD CONNECTIONS CONDENSING UNIT W/ HORIZONTAL AIR DISCHARGE Electrical Entrance for High Voltage Connection. Three phase electric service not provided by Liebert Electrical Entrance for Low Voltage Connection Field wired high voltage connections Factory wired to components...
  • Page 46 LIEBERT PFD COMPONENT LOCATION DIAGRAM CONDENSING UNIT TYPICAL HORIZONTAL DISCHARGE Top View DETAIL A 1 Fan with Direct-drive motor 2 Condenser coil 3 Electric box 4 Heated Receiver 5 Variable-Capacity Digital Scroll Compressor 6 Head Pressure Control Valve (Lee-Temp) DPN004180...
  • Page 47 Vertiv | Liebert® PFD™ Installer/User Guide...
  • Page 48 VertivCo.com | Vertiv Headquarters, 1050 Dearborn Drive, Columbus, OH, 43085, USA © 2018 Vertiv Co. All rights reserved. Vertiv and the Vertiv logo 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. While every precaution has been taken to ensure accuracy and completeness herein, Vertiv Co.

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