Trane SWUD5020 Installation, Operation And Maintenance Manual

Commercial self-contained units

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Installation, Operation, and Maintenance

Commercial Self-Contained Units

SWUD

R-454B – 20 to 110 Tons

SWUD – 20 to 110 Tons

Only qualified personnel should install and service the equipment. The installation, starting up, and servicing of heating, ventilating, and air-conditioning equipment

can be hazardous and requires specific knowledge and training. Improperly installed, adjusted or altered equipment by an unqualified person could result in death or

serious injury. When working on the equipment, observe all precautions in the literature and on the tags, stickers, and labels that are attached to the equipment.

May 2024

SAFETY WARNING

PKG-SVX029A-EN

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Summary of Contents for Trane SWUD5020

Page 1 Installation, Operation, and Maintenance Commercial Self-Contained Units SWUD R-454B – 20 to 110 Tons SWUD – 20 to 110 Tons SAFETY WARNING Only qualified personnel should install and service the equipment. The installation, starting up, and servicing of heating, ventilating, and air-conditioning equipment can be hazardous and requires specific knowledge and training.
Page 2 (HCFCs). Not all refrigerants containing these compounds bump cap, fall protection, electrical PPE and arc have the same potential impact to the environment. Trane flash clothing). ALWAYS refer to appropriate advocates the responsible handling of all refrigerants.
Page 3 Follow EHS Policies! This document and the information in it are the property of Trane, and may not be used or reproduced in whole or in Failure to follow instructions below could result in part without written permission. Trane reserves the right to death or serious injury.
Page 4 Table of Contents Overview........7 Installation - Electrical.
Page 5 Table of Contents Thermostatic Expansion Valve....29 Compressor Alarms ....39 Fan Alarms.
Page 6 Table of Contents Monthly Checklist ..... 50 Troubleshooting ......52 Semi-Annual Maintenance .
Page 7 Overview Note: One copy of this document ships inside the control Figure 1. SWUD components panel of each unit and is customer property. It must be retained by the unit maintenance personnel. This manual describes proper installation, operation, and maintenance procedures for water cooled systems. By carefully reviewing the information within this manual and following the instructions, the risk of improper operation and/or component damage will be minimized.
Page 8 Overview Unit Nameplate installation. For more detailed unit control options, see the Owners section of this manual. The unit nameplate identifies the unit model number. It is located on the door of the starter panel. PKG-SVX029A-EN...
Page 9 Model Number Description Digit 1, 2, 3, 4 — Unit Model Digit 16 — Economizer Digit 28 — Air Volume/Temp Control SWUD = Self-Contained Water-Cooled Unitary 0 = No Economizer A = VAV Control Scheme (Fixed DA Temp) Device W = With Water Side Economizer B = VAV Control Scheme (Return Air Reset) H = 2-position Damper Ventilation Interface C = VAV Control Scheme (Space Temp Reset)
Page 10 No. of fans Note: All performance data is provided in the Performance Selection Program. Contact Trane Sales at 770-988-8338 for more information. All performance data is provided in the Performance Selection Program. Contact MJC Sales at 770-988-8338 for more information.
Page 11 General Data Table 2. EER/IEER ratings AHRI Net Cooling Capacity Tonnage Model Number IEER (MBH) SWUD5020 18.7 21.3 SWUD5025 16.7 19.9 SWUD5030 17.9 22.6 SWUD5035 18.2 22.0 SWUD5040 18.2 21.9 SWUD5045 17.9 22.1 SWUD5050 18.8 22.8 SWUD5055 18.3 22.1 SWUD5060 18.2...
Page 12 Verify the nameplate data matches the sales order and damage by the carrier and consignee. bill of lading. Note: Notify your Trane representative of the damage • Verify the unit is properly equipped and there are no and arrange for repair. Have the carrier inspect material shortages.
Page 13 Pre-Installation Repair Unpacking Notify the appropriate sales representative before SWUD units ship fully assembled in a single piece. Some arranging unit installation or repair. accessories are shipped inside an additional box. Important: Do not repair unit until the damage has been inspected by the carrier’s representative.
Page 14 Dimensional Data Figure 2. Unit dimensions (in inches) Depth The Top view drawing is a general representation. The number of fans varies according to capacity. Discharge Opening C See the general data table for fan quantity. Discharge Opening D Width Depth Width Airflow...
Page 15 Dimensional Data Table 3. Unit dimensions (in inches) Unit Size 20, 25, 30, and 35T 40, 45, 50, 55, and 60T 65, 70, 75, and 85T 90, 100, and 110T Dimension Width (in.) 70.00 95.00 111.00 140.00 Depth (in.) 65.00 80.00 80.00 80.00...
Page 16 Dimensional Data Figure 4. Standard plenum (option) Note: Custom height plenums available upon request. Table 4. Standard plenum (option) Dim A (in.) Dim B (in.) Height (in.) Unit Size 20, 25, 30, and 35T 42.92 28.55 30.00 40, 45, 50, 55, and 60T 67.77 43.40 30.00...
Page 17 Dimensional Data Service Clearances Figure 5. Service clearance Back - Air Inlet 18" Left Side Right Side 42" 24" 1) Low Voltage (Control Panel) 2) High Voltage Front Starter Control 42" Electrical conduit penetrations (recommended) Table 5. Service/code clearance requirements Distance - in.
Page 18 Weights Table 6. Unit weights Base Weight Waterside Economizer Unit Size (lbs) (lbs) 2763 2813 2915 2965 3423 3489 3654 3734 3904 4231 4240 4367 4466 5137 1055 5237 1055 5336 1055 PKG-SVX029A-EN...
Page 19 Installation – Mechanical Unit Handling Figure 6. Detail of how to run straps through fork pockets to connect spreader bar on self-contained WARNING Spreader bar Improper Unit Lift! Failure to properly lift unit in a LEVEL position could result in unit dropping and possibly crushing operator/technician which could result in death or serious injury, and equipment or property-only Straps...
Page 20 Make duct connections to the unit with a flexible material Important: Vibration isolation is not necessary for the unit such as heavy canvas. If a fire hazard exists, Trane since the factory internally isolates the fan and recommends using Flexweave 1000, type FW30 or compressor, thus creating double isolation.
Page 21 Use the services of a qualified water treatment specialist to determine what water treatment, if any, is required. Trane assumes no responsibility for Condensate Drain Connections equipment failures which result from untreated or improperly treated water, or saline or brackish water.
Page 22 Note: Unit does not have floor drains. Refrigerant System Figure 11. Condenser water piping components for Trane Water Cooled Commercial Self-Contained units ship cooling tower system factory charged with R-454B refrigerant. PKG-SVX029A-EN...
Page 23 Installation - Electrical Unit Wiring Diagrams Voltage Range Voltages must be within ±10% the nameplate voltage. Specific unit wiring diagrams are provided on the inside of Confirm the unit voltage is balanced by measuring at the the control panel door. Use these diagrams for connections compressor terminals.
Page 24 Installation - Electrical Selection Procedures Determine Max Fuse (MFS) and Max Circuit Breaker (MCB) Sizes • RLA = Rated Load Amps MFS and MCB = 2.25 x largest motor amps (FLA or RLA) + • Compressor LRA = Locked Rotor Amps the sum of the remaining motor amps.
Page 25 Installation - Electrical Table 8. Electrical service sizing data — motors (continued) Digit 9 - Unit Digit 9 Tonnage Comp 1 Comp 2 Comp 3 Comp 4 Qty Fans Fan FLA Misc Voltage 208-230/60/3 83.1 83.1 62.1 62.1 13.5 6.00 2.00 208-230/60/3 83.1...
Page 26 For variable frequency drives Wiring or other energy storing components provided by Trane or others, refer to the appropriate 1. Run wires between the unit control panel and the zone manufacturer’s literature for allowable waiting periods sensor subbase. To determine the number of wires for discharge of capacitors.
Page 27 Installation - Electrical convention of connecting zone sensor terminals to like Table 9. Zone sensor maximum lengths and wire size numbered unit terminals (1 to 1, 2 to 2).The connection Distance from Unit to Recommended Wiring Size detail is shown on the unit wiring diagrams located in Controller the unit control panel.
Page 28 Operating Principles Control Sequences of Operation Water Purge This user-definable feature allows the user to select a Occupied/Unoccupied Switching purge schedule to automatically circulate water through the There are three ways to switch occupied/unoccupied: economizer and condensers periodically during non- operational times.
Page 29 Operating Principles Mode request multistate value between the Heating and meet airflow and static demand, and all fans are Cooling modes to get the desired control. commanded On upon Unit Controller status transition to Occupied Mode. Cooling/Waterside Economizer Each fan assembly has its own motor with integrated electronically commutated motor (ECM).
Page 30 Operating Principles voltage output is linearly proportional to the sensed 2. MCSP dry contact pressure. 3. Circuit breaker auxiliary - 1CB1, 1CB2, 1CB3 or 1CB4 The discharge pressure sensor is used by the unit 4. Start/Stop NO contact on the Symbio™ 500 binary controller to do the following: output module •...
Page 31 Condensing temperature will be required. Trane assumes no responsibility for referenced utilizing factory installed sensors located at equipment failures which result from untreated or each condenser.
Page 32 Operating Principles Waterside Economizer Option If the Discharge Air Temperature exceeds 104°F a Manually Resettable High Discharge Air Temperature The waterside economizer option takes advantage of Diagnostic is annunciated. cooling tower water to either precool the entering air to aid the mechanical cooling process or, if the water temperature Dirty Air Filter Sensor Option is low enough, provide total system cooling.
Page 33 Operating Principles sequences to allow using outside air for the first stage of temperature and relative humidity sensors are field sourced cooling, in occupied or unoccupied mode and when and installed. ambient conditions are favorable for economizing. Inherent Economizer operation enables when the outside air in the unit controller is the ability to suppress the setpoint enthalpy is 3 BTU’s/lb.
Page 34 Controls Unit Controller • XM90.1 • XM30.2 The SWUD uses the Symbio™ 500 control platform for monitoring and control. XM expansion modules are used to • XM30.3 expand the Symbio 500 I/O capabilities. • XM30.4 In the control panel, the following modules are used: Note: The number after the dot in the name (example: •...
Page 35 Open = Off, Closed = On Supply Fan Start Stop Command 2 Open = Off, Closed = On Discharge Air Temperature 10k Ohm Resistor Trane Type 2 Return Air Temperature Local 10k Ohm Resistor Trane Type 2 Symbio 500 (Requires 50VA...
Page 36 — — AO4/UI4 — — Outdoor Air Temperature Local 10k Ohm Resistor Trane Type 2 (only on units with economizer interfaces) AO1/UI1 Outdoor Air Relative Humidity Local 4 ma = 0, 20 ma = 100% AO2/UI2 XM30.4 Return Air Humidity Local...
Page 37 Controls Navigating the TD-7 TD-7 Home Screen To access the TD-7 home screen, press the Home button in the upper left of the screen. Screen Description Element Home button Displays the local Auto Stop button and displays the occupancy, Heat/Cool Mode, and Unit Information. Displays information about the Air Filter.
Page 38 Controls Setpoint Adjustments Figure 19. Local Auto/Stop This section details control setpoints that can be modified from factory defaults and how to modify those setpoints. Unit Setpoints Figure 20. Stop or release override Table 13. Unit setpoints that can be modified in the TD-7 Setpoint Name Description Factory Default...
Page 39 Controls Table 13. Unit setpoints that can be modified in the TD-7 (continued) Setpoint Name Description Factory Default Sets the return setpoint when the unit is selected to do discharge air reset based off the Return Temperature Setpoint BAS return temperature. This value is used to determine the occupied heating and cooling 72°F (DAT Reset by Return Temp Air Units Only) temperatures which reset the discharge air temperature setpoint.
Page 40 Use the services of a qualified water treatment Release Override button in the top left. specialist to determine what water treatment, if any, is required. Trane assumes no responsibility for General Alarms equipment failures which result from untreated or improperly treated water, or saline or brackish water.
Page 41 Pre-Startup Water-Cooled Unit Piping Before starting up units, perform the following procedure to confirm proper unit operation. Verify condensate drain, water piping drain plugs, economizer header, strainer pressure transducers, and Pre-Startup Checklist condenser vent plug are installed. Complete this checklist after installing unit to verify all Units with Hydronic Heat recommended installation procedures are complete before start-up.
Page 42 Start-Up WARNING NOTICE Live Electrical Components! Compressor Damage! Failure to follow all electrical safety precautions when Failure to follow instructions below could result in exposed to live electrical components could result in compressor failure and/or reduced compressor life. death or serious injury. To prevent compressor liquid slugging, only add liquid in the suction line when the compressor is When it is necessary to work with live electrical...
Page 43 Start-Up Operating and Programming Instructions each unit. For units with VFD option, see installer guide that ships with each VFD. See IntelliPak™ Commercial Self-Contained Signature Series 20 to 110 Ton, Modular Series 20 to 35 Ton Start-Up Log Programming Guide (PKG-SVP01*-EN) for available unit operating setpoints and instructions.
Page 44 For variable frequency drives allows for panel to be removed. or other energy storing components provided by Trane or others, refer to the appropriate manufacturer’s literature for allowable waiting periods Air Filters for discharge of capacitors. Verify with a CAT III or IV...
Page 45 Maintenance Compressors WARNING Explosion Hazard! Scroll Compressor Failure Diagnosis and Failure to follow these instructions could result in Replacement death or serious injury or equipment or property-only If compressor failure is suspected, refer to CSHD and damage. CSHN/CSHL Compressors Installation and Service Use only dry nitrogen with a pressure regulator for Installation Instructions (COM-SVN01*-EN) for detailed pressurizing unit.
Page 46 Maintenance the refrigerant/nitrogen mixture, break connections and should melt the rod. make repairs. Retest for leaks. 8. Continue to apply heat evenly around the joint 6. Confirm all service valves are open. circumference until the brazing material is drawn into the joint by capillary action, making a mechanically Brazing Procedures sound and gas-tight connection.
Page 47 Maintenance NOTICE vacuum test where time versus pressure rise. Maximum allowable rise over a 15 minute period is 200 microns. If Motor Winding Damage! pressure rise is greater than 200 microns but levels off to a Failure to follow instructions below could result in constant value, excessive moisture is present.
Page 48 Maintenance Compressors demand or when dirty conditions prevail. Clean the coil a minimum of once per year to prevent dirt buildup in Scroll Compressor Failure Diagnosis and the coil fins, where it may not be visible. Replacement • Remove large debris from the coils and straighten fins before cleaning.
Page 49 Failure to follow instruction below could result in power to the unit. equipment damage. Drain and vent coils when not in use. Trane 10. Confirm contaminated material does not contact other recommends glycol protection in all possible freezing areas of the equipment or building. Properly dispose of applications.
Page 50 Follow proper Trane or others, refer to the appropriate lockout/tagout procedures to ensure the power can manufacturer’s literature for allowable waiting periods not be inadvertently energized.
Page 51 Maintenance Semi-Annual Maintenance sheaves. 1. Inspect, clean, and tighten all electrical connections. WARNING 2. Visually inspect the entire unit casing for chips or Rotating Components! corrosion. Remove rust or corrosion and repaint Failure to disconnect power before servicing could surfaces. result in rotating components cutting and slashing 3.
Page 52 Diagnostics Troubleshooting charge, malfunctioning of expansion valves, damaged compressors, etc. will result in pressure variations which System Checks are outside the normal range. Note: If phasing at the main incoming power terminal is WARNING incorrect, switch two of the three incoming power Live Electrical Components! leads.
Page 53 Notes PKG-SVX029A-EN...
Page 54 Notes PKG-SVX029A-EN...
Page 55 Notes PKG-SVX029A-EN...
Page 56 For more information, please visit trane.com or tranetechnologies.com. Trane has a policy of continuous product and product data improvements and reserves the right to change design and specifications without notice. We are committed to using environmentally conscious print practices.

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