Table of Contents
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Installation, Operation,
and Maintenance
Packaged Rooftop Air Conditioners
Precedent™- Electric/Electric
5 – 10 Tons – 50 Hz
Model Numbers
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.
September 2012
TSC060ED - TSC120ED
SAFETY WARNING
RT-SVX37B-EN
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Table of Contents
Troubleshooting
Related Manuals for Trane TSC060ED
Summary of Contents for Trane TSC060ED
- Page 1 Maintenance Packaged Rooftop Air Conditioners Precedent™- Electric/Electric 5 – 10 Tons – 50 Hz TSC060ED - TSC120ED Model Numbers 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.
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Page 2: Warnings, Cautions And Notices
Carbon (HCFCs). Not all refrigerants containing these Revision Summary compounds have the same potential impact to the RT-SVX37B-EN (10 September 2012) environment. Trane advocates the responsible handling of all refrigerants-including industry replacements for CFCs • MERV 8 filter with filter removal tool such as HCFCs and HFCs. -
Page 3: Table Of Contents
Table of Contents Warnings, Cautions and Notices ..2 Model Number Descriptions ....4 General Information ..... 6 Pre-Installation . -
Page 4: Model Number Descriptions
Economizer, Dry Bulb 0-100% Convertible with Barometric Relief No Communications Interface Digit 4,5,6 - Nominal Gross Economizer, Reference Enthalpy Trane Communications Interface 0-100% without Barometric Relief LonTalk® Communications Interface Cooling Capacity (MBh) Economizer, Reference Enthalpy Novar 2024 Controls 3 Ton 0-100% with Barometric Relief Novar 3051 Controls without Zone... -
Page 5: Model Number Notes
Model Number Descriptions Clogged Filter Switch , Fan Failure horizontal configuration. 20. Available for 3, 4, 5, 6, 7½, 8½ ton Switch and Condensate Drain Pan Barometric Relief for horizontal standard/high efficiency models Overflow Switch configured units must be ordered only. -
Page 6: General Information
General Information Unit Inspection When ordering replacement parts or requesting service, be sure to refer to the specific model number and serial As soon as the unit arrives at the job site number printed on the unit nameplate. • Verify that the nameplate data matches the data on the Overview of Manual sales order and bill of lading (including electrical data). - Page 7 24 VAC. pressure differential across the return air filters. It is mounted in the filter section and is connected to the RTCI - ReliaTel™ Trane Communication RTOM. A diagnostic SERVICE signal is sent to the remote Interface (Optional)
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Page 8: Low Pressure Control
(Heat, Cool, and Off) and two fan settings (On This electronic sensor features remote zone sensing and and Auto). It is a manual changeover control with single timed override with override cancellation. It is used with a setpoint. (Cooling Setpoint Only) Trane Integrated Comfort™ building management system. RT-SVX37B-EN... -
Page 9: Phase Monitor
This electronic sensor features single setpoint capability Discharge Line Temp Switch (DLTS) and timed override with override cancellation. It is used with a Trane Integrated Comfort™ building management The DLTS is looped in series with HPC and LPC. It prevents system. -
Page 10: Pre-Installation
Pre-Installation WARNING Fiberglass Wool! Product contains fiberglass wool. Disturbing the insulation in this product during installation, maintenance or repair will expose you to airborne particles of glass wool fibers and ceramic fibers known to the state of California to cause cancer through inhalation. -
Page 11: Unit Dimensions
Unit Dimensions Unit Clearances assure adequate serviceability, cataloged unit capacity, and peak operating efficiency. Figure 1 illustrates the minimum operating and service Providing less than the recommended clearances may clearances for either a single or multiple unit installation. result in condenser coil starvation, “short-circuiting” of These clearances are the minimum distances necessary to exhaust and economizer airflows, or recirculation of hot condenser air. - Page 12 Unit Dimensions Figure 2. 5 ton units Note: All dimensions are in inches/millimeters. Figure 3. 5 ton units - roof curb Note: All dimensions are in inches/millimeters. 44 MM 44 MM 1038 1038 MM 1053 1053 MM RT-SVX37B-EN...
- Page 13 Unit Dimensions Figure 4. 5 ton units - unit clearance and roof opening Note: All dimensions are in inches/millimeters. CLEARANCE 36” (914 MM) Figure 5. 6, 7½ ton units Note: All dimensions are in inches/millimeters. RT-SVX37B-EN...
- Page 14 Unit Dimensions Figure 6. 6, 7½ ton units - roof curb Note: All dimensions are in inches/millimeters. (356 MM) (2130 MM) Figure 7. 6, 7½ ton units - unit clearance and roof opening Note: All dimensions are in inches/millimeters. RT-SVX37B-EN...
- Page 15 Unit Dimensions Figure 8. 8½ - 10 tons units Note: All dimensions are in inches/millimeters. Figure 9. 8½ - 10 tons units - roof curb Note: All dimensions are in inches/millimeters. (356 MM) (2130 MM) RT-SVX37B-EN...
- Page 16 Unit Dimensions Figure 10. 8½ - 10 tons units - unit clearance and roof opening Note: All dimensions are in inches/millimeters. RT-SVX37B-EN...
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Page 17: Installation
Table 1. Factory installed options (fiops)/accessory net (a),(b) weights (lbs/kgs) Figure 11. Corner weights TSC060ED TSC072E-120ED Net Weight Net Weight Accessory 5 Ton 6-10 Ton Barometric Relief... -
Page 18: Roof Curb
Installation Foundation Figure 15. 5 ton units - Down flow supply & return air openings w/ through the base utilities Horizontal Units If the unit is installed at ground level, elevate it above the snow line. Provide concrete footings at each support location with a “full perimeter”... - Page 19 Installation Rigging Before installing any roof curb, verify; • it is the correct curb for the unit, A Rigging illustration and Center-of-Gravity dimensional • it includes the necessary gaskets and hardware, data table is shown in Figure 12, p. 17. Refer to the typical unit operating weights table before proceeding.
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Page 20: General Unit Requirements
Installation General Unit Requirements Figure 18. The checklist listed below is a summary of the steps required to successfully install a commercial unit. This checklist is intended to acquaint the installing personnel with what is required in the installation process. It does not replace the detailed instructions called out in the RTV Sealant applicable sections of this manual. -
Page 21: Condensate Drain Configuration
Installation Figure 20. Figure 22. Duct cover RTV Sealant Supply duct cover Insulation side 5. Slide RETURN DUCT COVER (insulation side up) into down supply opening until inward edge of duct cover engages with the 2 retaining clips on the duct flange. Return duct Secure outward edge of the duct cover with two Insulation side up... -
Page 22: Field Installed Power Wiring
Installation To convert drain condensate through the base Drain Pan Removal (Units with of unit: Condensate Overflow Switch Option) 1. Remove evaporator access panel and supply air access Before drain pan removal, the switch wire must be panels. disconnected from wire tie on panel and/or any tape. 2. -
Page 23: Main Unit Power
Installation Field Installed Control Wiring installed at or near the unit in accordance with the National Electrical Code (NEC latest edition). An overall layout of the various control options available with the required number of conductors for each control Main Unit Power device is illustrated in Figure 29, p. -
Page 24: Space Temperature Averaging
Installation Controls using DC Analog Input/Outputs Figure 26. ReliaTel control customer low voltage (Standard Low Voltage Multi conductor routing Wire) Before installing any connecting wiring between the unit and components utilizing a DC analog input\output signal, refer to “Unit Dimensions, ” p. 11 for the electrical access locations provided on the unit. - Page 25 Installation Example #3 Figure 28, p. 26 illustrates the circuit required for this sensor. Table 5 lists the temperature versus resistance coefficient for all sensors. Table 5. Temperature vs resistance Temperature Degrees Degrees Nominal F° C° Resistance -20° -28.9° 170.1 K - Ohms -15°...
- Page 26 Installation Figure 28. Examples RT-SVX37B-EN...
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Page 27: Typical Field Wiring Diagrams For Controls
Installation Figure 29. Typical field wiring diagrams for optional controls (ReliaTel only) BAYSENS077* BAYSENS077* ASYSTAT111* ASYSTAT111* BAYSENS108* BAYSENS106* Zone Sensor BAYSENS110* Zone Sensor Zone Sensor BAYSENS119* ASYSTAT777* Zone Sensor BAYSENS074* BAYSENS073* Zone Sensor Zone Sensor BAYSENS077*/ASYSTAT111* RT-SVX37B-EN... -
Page 28: Pre-Start
Pre-Start Use the checklist provided below in conjunction with the AV (Average Voltage) = “General Unit Requirements” checklist to ensure that the Volt 1 + Volt 2 + Volt 3 unit is properly installed and ready for operation. V1, V2, V3 = Line Voltage Readings WARNING VD = Line Voltage reading that deviates the farthest from Hazardous Voltage w/Capacitors! - Page 29 Pre-Start WARNING WARNING Live Electrical Components! Live Electrical Components! During installation, testing, servicing and During installation, testing, servicing and troubleshooting of this product, it may be necessary to troubleshooting of this product, it may be necessary to work with live electrical components. Have a qualified work with live electrical components.
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Page 30: Test Modes
Pre-Start Table 6. Service test guide for component operation Econ Test Step Mode (Note 2) Comp1 Comp 2 Heat 1 Heat 2 Ohms Minimum Position Setpoint 0% 2.2K Minimum Selectable Ventilation Economizer Open 3.3K Test Open Cool Minimum (Note 1) 4.7K Stage 1 Position... -
Page 31: Start-Up
Start-Up Verifying Proper Air Flow • To Decrease Fan RPM; Loosen the pulley adjustment set screw and turn sheave counterclockwise. • If the required CFM is too high, (external static WARNING pressure is low causing motor HP output to be above table value), change indoor fan speed and repeat Step Live Electrical Components! -
Page 32: Compressor Start-Up
Start-Up ReliaTel Control 4. Superheat should be within ±5 F of the superheat chart value. Momentarily jump across the Test 1 & Test 2 terminals on LTB1 one additional time if continuing from 5. Repeat Step 1 through Step 4 for each refrigerant previous component start-up or until the desired start- circuit. -
Page 33: Maintenance
Maintenance Fan Belt Adjustment - Belt Drive 7. Recheck the belt tension at least twice during the first 2 to 3 days of operation. Belt tension may decrease Units until the new belts are “run in” . Figure 30. Belt tension gauge WARNING Rotating Components! During installation, testing, servicing and... -
Page 34: Cooling Season
Maintenance checked to ensure free movement up and down. • Verify that the electric heat system operates properly. Cooling Season Coil Cleaning • Check the unit’s drain pans and condensate piping to Regular coil maintenance, including annual cleaning, ensure that there are no blockages. enhances the unit’s operating efficiency by minimizing: compressor head pressure and amperage draw;... -
Page 35: Annual Maintenance
Maintenance WARNING Hazardous Pressures! Coils contain refrigerant under pressure. When cleaning coils, maintain coil cleaning solution temperature under 150°F to avoid excessive pressure in the coil. Failure to follow these safety precautions could result in coil bursting, which could result in death or serious injury. 5. -
Page 36: Final Process
Maintenance Final Process Wiring Diagram Numbers (from unit control panel) For future reference, you may find it helpful to record the Schematics unit data requested in the blanks provided. Complete Model Number Connections Unit Serial Number Table 8. Sample maintenance log Refrigerant Circuit #1 Refrigerant Circuit #2 Suct. -
Page 37: Trouble Shooting
Trouble Shooting ReliaTel™ Control operations for each mode, to assist in verifying proper operation. Make the necessary repairs and proceed to Step 7 Step The RTRM has the ability to provide the service personnel with some unit diagnostics and system status information. 7. -
Page 38: Zone Temperature Sensor (Zts) Service Indicator
Trouble Shooting Cooling Failure Cooling Failure = voltage alternates between 32 VDC & 0.75 VDC 1. Cooling and heating set point (slide pot) on the zone sensor has failed. Refer to the “Zone Sensor Test Service Failure Procedure” section. Measure the voltage between terminals J6-10 & J6-6. 2. -
Page 39: Zone Temperature Sensor (Zts) Test
Trouble Shooting Clogged Filter Switch The resistance of these potentiometers are measured between the following ZSM terminals. Refer to the chart This LED will remain lit the entire time that the Normally above for approximate resistances at the given setpoints. Open switch is closed. -
Page 40: Unit Economizer Control (Eca) Troubleshooting
Trouble Shooting 5. After verifying proper unit operation, exit the test 6. Flashes: OA Humidity Sensor mode. Turn the fan on continuously at the ZSM, by 7. Flashes: OA Temp Sensor pressing the button with the fan symbol. If the fan 8. -
Page 41: Wiring Diagrams
Wiring Diagrams Cooling Connection Capacity Diagram Power Diagram Control Diagram 060E 4366-1509-0104 4366-1020-0104 4366-1026-0104 072E 4366-1541-0110 4366-1020-0104 4366-1026-0104 090E 4366-1541-0110 4366-1020-0104 4366-1026-0104 102E 4366-1534-0110 4366-1037-0110 4366-1044-0110 120E 4366-1534-0110 4366-1037-0110 4366-1044-0110 RT-SVX37B-EN... - Page 44 The manufacturer has a policy of continuous product and product data improvement and reserves the right to change design and specifications without notice. © 2012 Trane All rights reserved We are committed to using environmentally RT-SVX37B-EN 10 Sep 2012 conscious print practices that reduce waste.
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