Trane Precedent YZK036 Series Installation, Operation And Maintenance Manual
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Trane Precedent YZK036 Series Installation, Operation And Maintenance Manual

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Installation, Operation, and Maintenance
Precedent™ Packaged Rooftop
Units
Cooling and Gas/Electric
Ultra High Efficiency
3 to 25 Tons — 60 Hz
Model Numbers:
TZK036* - TZK300*
YZK036* - YZK300*
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 2024
SAFETY WARNING
RT-SVX093A-EN

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Summary of Contents for Trane Precedent YZK036 Series

  • Page 1 Installation, Operation, and Maintenance Precedent™ Packaged Rooftop Units Cooling and Gas/Electric Ultra High Efficiency 3 to 25 Tons — 60 Hz Model Numbers: TZK036* - TZK300* YZK036* - YZK300* 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: Warnings, Cautions, And Notices

    (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: Product Safety Information

    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

    Table of Contents Model Number Description ....7 High Temperature Sensor (FIAHTST001*) ..... . . 12 General Information .
  • Page 5 Table of Contents General Unit Requirements ....42 Control Power Transformer ... . . 56 Factory Installed Economizer .
  • Page 6 Table of Contents Gas Heat Operation and Maintenance ..83 Turning Off Gas to Unit ....85 Gas Heat Unit General Information ..83 Heating System Maintenance .

  • Page 7: Model Number Description

    Model Number Description Digit 1 — Unit Function Digit 12, 13 — Service Sequence Digit 18 — Through-the-Base Provisions T = DX Cooling ** = Factory Assigned 0 = No Through-the-Base Provisions Y = DX Cooling, Gas Heat A = Through-the-Base Electric B = Through-the-Base Gas Piping Digit 14 —...
  • Page 8 Model Number Description Digit 25 — System Monitoring Controls 0 = No Monitoring Control 1 = Clogged Filter Switch 2 = Condensate Overflow Switch 3 = Discharge Air Sensing Tube 4 = Clogged Filter Switch and Condensate Overflow Switch Digit 26 — Not Used Digit 27 —...

  • Page 9: General Information

    General Information Unit Inspection Note: Do not use the unit heater for temporary heat without first completing the start-up. To protect against loss due to damage incurred in transit, The manufacturer will not assume any responsibility for perform inspection immediately upon receipt of the unit. equipment damage resulting from condensate Check carefully for shipping damage.

  • Page 10: Compressor Nameplate

    General Information Compressor Nameplate speed falls below 30 rpm, supply fan failure diagnostic is generated, and operation is stopped. The nameplate for the compressors are located on the side of the compressor. Clogged Filter Switch (Optional) The unit mounted clogged filter switch monitors the Microchannel Coil Barcode ID pressure differential across the return air filters.

  • Page 11: Low Pressure Control (Lpc)

    General Information out mode. Refer to Packaged Rooftop Air Conditioners It may be necessary to replace permanent filters annually if Precedent™ eFlex™ Troubleshooting Guide (RT- washing fails to clean the filter. Use the same type and size SVD008*-EN) for potential causes. as originally installed.

  • Page 12: Wall Mounted Relative Humidity Sensor (Baysens036*)

    (2-speed) indoor fan control and staged This sensor features remote zone sensing and timed compressor control. This drastically reduces override with override cancellation. It is used with a Trane the energy savings available with this design. Integrated Comfort™ building management system.

  • Page 13: Digital Display Zone Sensor (Baysens135*)

    General Information has been lowered approximately 25ºF below the cutout Notes: setpoint. • The supply air smoke detector samples supply air. The return smoke detectors sample return Digital Display Zone Sensor air. The smoke detectors are designed to shut (BAYSENS135*) off the unit if smoke is sensed.

  • Page 14: Pre-Installation

    Pre-Installation WARNING Fiberglass Wool! Exposure to glass wool fibers without all necessary PPE equipment could result in cancer, respiratory, skin or eye irritation, which could result in death or serious injury. 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 15: Dimensions And Weights

    Unit Size (Tons) Model Number Digits 4, 5, 6 TZK, YZK 12.5 17.5 Note: Equipment feature availability is dependent on unit configuration. For more information, see Trane® Select Assist™ or contact product support. Dimensional Data Figure 3. B.0 cabinet TOP PANEL...
  • Page 16 Dimensions and Weights Figure 4. B.0 cabinet – downflow airflow supply/return, through-the-base utilities 3 5/8” 92 MM 17 1/2” 9 7/8” 17 1/2” 444 MM 251 MM 444 MM 4” 102 MM SUPPLY RETURN 32 1/8” 33” 816 MM 838 MM THROUGH THE BASE CONDENSATE 40 3/4”...
  • Page 17 Dimensions and Weights Figure 6. B.0 cabinet – unit clearance and roof opening CLEARANCE HORIZONTAL FLOW - 18” (457 MM) CLEARANCE 36” (914 MM) DOWNFLOW - 36” (914 MM) TYPICAL ROOF OPENING CLEARANCE FROM TOP OF UNIT 72” 46” 46” 88 5/8”...
  • Page 18 Dimensions and Weights Figure 8. B.0 cabinet – downflow duct connections, field fabricated 17 3/4” 451MM 17 3/4” 451MM 33 3/4” 857 MM 33 3/4” 857 MM ALL FLANGES 1 1/4" (31 MM) Figure 9. B.0 cabinet – swing diameter for hinged door(s) option 17”...
  • Page 19 Dimensions and Weights Figure 10. C.0 cabinet INDOOR TOP PANEL CONTROL BOX SECTION ACCESS PANEL OUTDOOR TOP PANEL EVAPORATOR SECTION 50-7/8" ACCESS PANEL [1293] ALTERNATE CONDENSATE DRAIN CONNECTION 3/4 - 14 NPT DIA HOLE 27-5/8" CONDENSER COIL [700] 47-7/8" [1217] 63-1/8"...
  • Page 20 Dimensions and Weights Figure 12. C.0 cabinet – horizontal airflow, supply and return 3 7/8” 98 MM 9 3/8” 238 MM RETURN 32 1/4” 832 MM 16 3/4” 425 MM SUPPLY 19 1/4” 489 MM 32 1/4” 4 3/4” 832 MM 120 MM 27 5/8”...
  • Page 21 Dimensions and Weights Figure 14. C.0 cabinet – roof curb 18 1/2” 6 5/8” 470 MM 168 MM 56 3/8” 1” 34 3/8” 1432 MM 25 MM 873 MM 80 1/2” 83 7/8” 18 1/2” 2045 MM 2130 MM 470 MM 1”...
  • Page 22 Dimensions and Weights Figure 16. B.0 and C.0 cabinets – standard economizer, manual or motorized fresh air damper ECONOMIZER HOOD BAROMETRIC RELIEF HOOD Dimension Cabinet inch inch inch inch B.0 and C.0 7 3/4 16 3/4 7 1/4 RT-SVX093A-EN...
  • Page 23 Dimensions and Weights Figure 17. B.0 and C.0 cabinet – power exhaust with standard economizer ECONOMIZER HOOD POWER EXHAUST Dimension Cabinet inch inch inch inch B.0 and C.0 6 3/8 20 1/2 16 3/4 7 1/4 RT-SVX093A-EN...
  • Page 24 Dimensions and Weights Figure 18. B.0 and C.0 cabinet – power exhaust with low leak economizer ECONOMIZER HOOD POWER EXHAUST Dimension Cabinet inch inch inch inch B.0 and C.0 2 1/2 19 3/4 29 1/4 33 1/2 RT-SVX093A-EN...
  • Page 25 Dimensions and Weights Figure 19. D.0 and D.1 cabinets GAS CONNECTION 3/4 NPT (250, 320, 400 MBh) INDOOR TOP PANEL CONTROL BOX SECTION ACCESS PANEL 2" ELECTRICAL CONN SINGLE POINT OUTDOOR TOP PANEL POWER "T" MODELS ONLY EVAPORATOR SECTION ACCESS PANEL CONDENSATE DRAIN 59'' D.0 CAB OR [1499]...
  • Page 26 Dimensions and Weights Figure 21. D.0 and D.1 cabinets – horizontal airflow supply/return 5 1/4'' [133] RETURN 46 1/2'' 20 '' [1181] [508] 23 11/16'' [603] 26 3/4'' [679] 22 3/8'' [570] 29'' [737] [153] 4 9/16'' [114] 25 1/2'' [648] 7 15/16'' [202]...
  • Page 27 Dimensions and Weights Figure 23. D.0 and D.1 cabinets – roof curb 116 7/8” 1” 2969 MM 25 MM 1 13/16” 1” 46 MM 25 MM 1 1/2” (38 MM) PERIMETER 22 1/4” CURB FLANGE 565 MM 23 1/4” 1” 591 MM 25 MM 28 9/16”...
  • Page 28 Dimensions and Weights Figure 25. D.0 and D.1 cabinets – power exhaust 22.7 21.4 Figure 26. Gas pipe height Note: Height of gas pipe required from inside unit base to gas shut off assembly (factory provided). Dimension A Cabinet inch B.0, and C.0 4 5/8 D.0 and D.1...

  • Page 29: Clearances

    Dimensions and Weights Clearances capacity, and peak operating efficiency. Providing less than the recommended clearances may result in condenser coil Figure 27, p. 29 illustrates the minimum operating and starvation, “short-circuiting” of exhaust and economizer service clearances for either a single or multiple unit airflows, or recirculation of hot condenser air.

  • Page 30: Weights

    Dimensions and Weights Weights Table 3. Model weights, corner weights (lbs) and center of gravity dimensions (in.) Model Weights Corner Weights Center of Gravity (in.) Tons Unit Model No. Shipping Length Width TZK036 TZK048 TZK060 TZK072 TZK090 TZK102 TZK120 1372 1178 12.5 TZK150...
  • Page 31 Dimensions and Weights Figure 28. Corner weights Center of Gravity Length Center of Gravity Width Center of Gravity Table 5. Factory installed options (FIOPS)/accessory net weights (lb) Accessory T/YZK036-102 T/YZK120 T/YZK150-300 Barometric Relief Economizer Electric Heaters Low Leak Economizer - Downflow Low Leak Economizer - Horizontal Manual Outside Air Damper Motorized Outside Air Damper...

  • Page 32: Lifting And Rigging

    Dimensions and Weights Lifting and Rigging Figure 30. Rigging and center of gravity — D.0 and D.1 cabinets WARNING Heavy Object! Failure to follow instructions below could result in unit dropping which could result in death or serious injury, and equipment or property-only damage. Ensure that all the lifting equipment used is properly rated for the weight of the unit being lifted.

  • Page 33: A2L Information

    • To be repaired only by trained service At all times, Trane’s maintenance and service guidelines shall be followed. If in doubt, contact Trane technical personnel. support for assistance. • Do not puncture refrigerant tubing.

  • Page 34: Leak Detection

    Verify continuity of earth bonding. The recovery equipment shall be in good working order • Replace electrical components with Trane replacement with instructions available. Equipment shall be suitable for parts, or those meeting the same ratings and qualified the recovery of the flammable refrigerant. For specific for flame arrest protection, UL LZGH2 category.

  • Page 35: Decommissioning

    A2L Information • Ensure that the refrigerating system is earthed prior to the equipment are removed from site promptly and all charging the system with refrigerant. isolation valves on the equipment are closed off. • Label the system when charging is complete (if not 11.

  • Page 36: Minimum Room Area Limits

    A2L Information Minimum Room Area Limits unless the smallest room it serves is larger than the adjusted A threshold. This product contains a leak (Refrigerant charge greater than 3.91 lb detection system if a circuit charge is greater than 3.91 per circuit) lbs.

  • Page 37: Leak Detection System

    A2L Information of refrigerant with a minimum room area requirement of • Openings extending to the floor, such as door gaps, 180 ft with a 2.2 m release height. need to be at least 20 mm above the floor covering surface.

  • Page 38: Installation

    Installation WARNING WARNING Heavy Object! Risk of Roof Collapsing! Failure to follow instructions below could result in Failure to ensure proper structural roof support could unit dropping which could result in death or serious cause the roof to collapse, which could result in death injury, and equipment or property-only damage.
  • Page 39 Installation Figure 32. C.0 cabinet – horizontal airflow, supply and return 3 7/8” 98 MM 9 3/8” 238 MM RETURN 32 1/4” 832 MM 16 3/4” 425 MM SUPPLY 19 1/4” 489 MM 32 1/4” 4 3/4” 832 MM 120 MM 27 5/8”...

  • Page 40: Roof Curb

    Installation Figure 34. D.0 and D.1 cabinets – downflow airflow supply/return, through-the-base utilities 7" 14 3/8" 40" 19 3/8" 177 MM 365 MM 1002MM 488MM 6 5/8'' 167 MM 14 7/16" 365MM 73 5/8" 65" 1868MM 1652MM 8 3/8" 212MM 55 3/8'' 205MM 1404MM...

  • Page 41: Rigging

    Installation Rigging Note: C.0 units can be installed on B.0 (50 in. x 84 in.) roof curbs with the use of factory-installed base WARNING alignment brackets. These brackets create a 10-inch overhang on the front of the unit. See for installation Heavy Object! on the B.0 (50 in.

  • Page 42: General Unit Requirements

    Installation General Unit Requirements Figure 37. Fork pockets — B.0 cabinets The following checklist is a summary of the steps required to successfully install a commercial unit. Installers should Remove Two use this checklist to validate what is required in the Fork Lift installation process.

  • Page 43: Horizontal Discharge Conversion (B.0 And C.0 Cabinet Units)

    Installation Figure 40. Discard cover plate Figure 42. Vent hood installation Horizontal Discharge Conversion (B.0 and C.0 Cabinet Units) Note: B.0 and C.0 cabinet units move the supply cover to return opening and return cover to supply opening. Supplies needed by installer for conversion: 3 ounce tube of high temperature RTV sealant (500°F / 260°C, similar to 2.

  • Page 44: Horizontal Discharge Conversion (D.0 And D.1 Cabinet Units)

    Installation DAS Horizontal Conversions Figure 44. Return duct cover (Select Modulating Gas Heat Units) For units with model number digit 10 = B, DAS system RTV Sealant conversion may be required: • 6 to 12.5 ton units in B and C cabinets (with model number digit 10 = B): conversion required to the DAS pickup tubes for horizontal duct configurations.

  • Page 45: Conversion To Horizontal - 6 Ton High

    Installation Figure 47. DAS tubing after conversion to horizontal Figure 49. DAS tubing factory installation for downflow Vertical slide bracket Horizontal conversion elbow - mounted to back of bracket Figure 50. DAS tubing detail view (downflow) Figure 48. Detail view of DAS tubing after converting to horizontal Vertical slide bracket covers holes in tubing...

  • Page 46: Conversion To Horizontal - B Cabinet 3

    Installation Figure 51. DAS tubing conversion components 2. Slide the bracket up to cover all the vertical holes. The number of holes on the vertical leg will vary depending on unit heat level. See Figure 55, p. 46 through Figure 57, p.

  • Page 47: Tco1 Instructions

    Installation Figure 56. Horizontal conversion — holes on pickup 4. Replace heat section access panel. tube to be covered Figure 58. TCO1 instructions – B.0/C.0 cabinet Vertical Holes Blockoff Bracket Location of TCO1 limit to be installed Figure 57. Vertical hole differences YZK(036-120)* - two stage gas heater Low Heat - 3 holes Med Heat - 2 holes...

  • Page 48: D.0 And D.1 Cabinet Units

    Installation D.0 and D.1 Cabinet Units 1. If the unit has an economizer, it must be pulled out in the operating position. The factory installed return air smoke detector is installed in 2. Remove the 3 screws from the mounting brackets. the downflow discharge position for D.0 and D.1 cabinet Refer to downflow view for screw locations.

  • Page 49: Air-Fi® Wireless Communication Interface

    Installation Air-Fi® Wireless Communication Figure 63. Horizontal bracket installation (top view of unit) Interface The factory installed wireless communications interface is installed in the downflow discharge position. If converting to horizontal discharge, perform the following: 1. If the unit has an economizer, it must be pulled out in the operating position.

  • Page 50: Main Electrical Power Requirements

    Install Trane or others, refer to the appropriate color-coded, weather-proof, multi-wire cable according to manufacturer’s literature for allowable waiting periods the field wiring instructions.
  • Page 51 Installation Figure 67. Through-the-base gas pipe height Table 10. Through-the-base gas pipe assembly components for B.0 and C.0 cabinets (continued) Customer Gas Supply Pipe Connection Size Component Description 1/2 inch 3/4 inch Grommet Pipe cap ½ ¾ Pipe fitting ½ x 2 ¾ ¾...

  • Page 52: Requirements Of Gas Heat

    Installation Requirements of Gas Heat 2. Removal of horizontal duct supply cover is required to view DAS tubing located behind the heat exchanger The unit gas train and optional through-the-base gas shut- tubes. off valve are rated at 0.50 PSIG maximum. A pressure Figure 70.

  • Page 53: Condensate Drain Configuration

    Installation Table 15. Iron pipe size (SI) millimeters support panel and push until the coupling is seated in the grommet. Iron Pipe Size (SI) Millimeters 5. Replace the front support panel. Align the condensate drain pan support in the grommeted hole as the panel Length of 15 mm 20 mm...

  • Page 54: Drain Pan Removal

    Installation Figure 73. Condensate trap installation paired tuned drive/motor assembly. Failure to do so could result in loss of unit function. FIELD SUPPLIED PIPING In B.0 and C.0 cabinets, the outdoor motor controller is located below the control box in the condenser section. See figure below.

  • Page 55: Field Installed Power Wiring

    Installation Field Installed Power Wiring WARNING Hazardous Voltage! WARNING Failure to disconnect power before servicing could Proper Field Wiring and Grounding result in death or serious injury. Required! Disconnect all electric power, including remote disconnects before servicing. Follow proper lockout/ Failure to follow code could result in death or serious tagout procedures to ensure the power can not be injury.

  • Page 56: Field-Installed Control Wiring

    Installation be terminated in the control box at main panel power WARNING terminal block (HTB1). Proper Field Wiring and Grounding NOTICE Required! Equipment Damage! Failure to follow code could result in death or serious injury. Failure to follow instructions below could result in equipment damage.

  • Page 57: Component Failure

    Installation NOTICE Figure 78. Low voltage wiring — D.0 cabinet Component Failure! Resistance in excess of two and a half (2.5) ohms per conductor could result in component failure due to insufficient AC voltage supply. Do not exceed two and a half (2.5) ohms per conductor for the length of the run.

  • Page 58: Dc Conductors

    Installation • Table 18, p. 58 lists the conductor sizing guidelines that Table 18. Zone sensor module wiring (continued) must be followed when interconnecting the DC binary Distance from Unit to Control Recommended Wire Size output devices and the system components utilizing a DC analog input/output signal to the unit.
  • Page 59 Installation Figure 80. Examples Table 19. Temperature vs. resistance Table 19. Temperature vs. resistance (continued) Temperature Temperature Nominal Resistance Nominal Resistance (kOhms) (kOhms) Degrees °F Degrees °C Degrees °F Degrees °C -28.9 170.1 -3.8 40.40 -26.1 143.5 -1.1 34.85 -23.3 121.4 30.18 -20.6...
  • Page 60 Installation Table 19. Temperature vs. resistance (continued) Table 19. Temperature vs. resistance (continued) Temperature Temperature Nominal Resistance Nominal Resistance (kOhms) (kOhms) Degrees °F Degrees °C Degrees °F Degrees °C 21.1 11.89 29.4 8.247 23.9 10.50 32.2 7.330 26.7 9.297 35.0 6.528 RT-SVX093A-EN...

  • Page 61: Pre-Start

    Pre-Start Use the checklist provided below in conjunction with the NOTICE General Unit Requirements checklist to confirm the unit is Equipment Damage! properly installed and ready for operation. Failure to properly set circuit breaker dial could WARNING result in equipment damage. For units with circuit breaker overload protection, Hazardous Voltage w/Capacitors! set adjustable dial (Ir/A) to the MOP value on the...

  • Page 62: Electrical Phasing (Three Phase Motors)

    Pre-Start as a 20 percent current imbalance with a resulting WARNING increase in motor winding temperatures that will Live Electrical Components! decrease motor life. Failure to follow all electrical safety precautions when If the voltage imbalance is over 2 percent, notify the exposed to live electrical components could result in proper agencies to correct the voltage problem before death or serious injury.

  • Page 63: Symbio Controls

    Pre-Start Symbio Controls Note: When closing main power disconnect and the unit mounted disconnect switch or circuit breaker, the The Symbio™ 700 supports a Service Test Mode that can phase monitor will verify proper phasing. If LED on be used to energize the various components of the system, face of the monitor is red, correct supply power fault.

  • Page 64: Unit Start-Up

    Unit Start-Up Sequence of Operation Table 20. Ignition module diagnostics (continued) See Symbio™ 700 Controller with Precedent™ Packaged 1 Flash Loss of Communication Rooftop Air-Conditioners Application Guide (ACC- System Lockout: Failed to detect or APG002*-EN). sustain flame. (failure to ignite, no 2 Flashes spark, low/no gas pressure, etc.) Ignition Module –...

  • Page 65: Ignition And Operational Failures

    Unit Start-Up Ignition and Operational Failures During analog FIRING RATE input signal: a Call for Heat a. < 1.5 Vdc (0% ModBus Firing Rate)]: OFF b. 1.5 – 2.0 Vdc (0.5% ModBus Firing Rate): Minimum 1. If flame is not detected on the original ignition trial fire (Manifold pressure .20 to.30 in.

  • Page 66: Return Air Smoke Detector

    Unit Start-Up Table 21. Lockout codes (continued) Display Code Code Type Description Additional Comments and Notes A A 0 0 3 3 Alert Insufficient Combustion Air Blocked vent with actuator position derated by >20% from FRI setting A A 0 0 4 4 Alert Limited Low Fire (due to Lost Flame Auto-Adaptation) Flame loss at low fire results in an auto-adjustment that...

  • Page 67: Hot Gas Reheat

    Unit Start-Up Final System Setup 2. After the compressor and condenser fan have started and operated for approximately 30 minutes, observe After completing all of the pre-start and start-up procedures the operating pressures. Compare the operating outlined in the previous sections (i.e., operating the unit in pressures to the label on the access panel.

  • Page 68: Maintenance

    Maintenance WARNING these checks and procedures, refer to the appropriate section(s) of the smoke detector Installation and Hazardous Service Procedures! Maintenance Instructions provided with the literature Failure to follow all precautions in this manual and on package for this unit. the tags, stickers, and labels could result in death or Condensate Overflow Switch serious injury.

  • Page 69: Coil Cleaning

    Maintenance Microchannel (MCHE) Coils ☐ Check supply fan motor bearings and repair or replace the motor as necessary. NOTICE ☐ Inspect both the main unit control panel and heat Coil Damage! section control box for loose electrical components and terminal connections, as well as damaged wire Failure to follow instructions below could result in insulation.

  • Page 70: Final Process

    Maintenance Final Process 2. When recharging the unit after servicing, replace the amount of oil removed. Verify oil added is the correct For future reference, record the unit data below in the type. blanks provided. 3. For compressor replacements and/or additional questions, contact Technical Support.

  • Page 71: Troubleshooting

    Troubleshooting • Refer to the Symbio™ 700 Controller with Precedent™ • Refer to the Packaged Rooftop Air Conditioners Packaged Rooftop Air-Conditioners Application Guide Precedent™ eFlex™ Variable Speed Compressor (ACC-APG002*-EN). Inverter 6 to 25 Tons, 60 Hz Troubleshooting Guide (RT-SVD008*-EN). RT-SVX093A-EN...

  • Page 72: Wiring Diagrams

    Wiring Diagrams Note: Wiring diagrams can be accessed using e-Library by number search field or by contacting technical entering the diagram number in the literature order support. Table 24. Wiring diagrams Drawing Schematic Type Voltage Description Controls Number SCHEMATIC; SHEET 1, POWER, SINGLE COMPRESSOR, DUAL Symbio 700 Main Unit 230V/460V...
  • Page 73 Wiring Diagrams Table 24. Wiring diagrams (continued) Drawing Schematic Type Voltage Description Controls Number SCHEMATIC; SHEET 2, POWER, DUAL INDOOR FAN, EFLEX, COOLING Symbio 700 Main Unit 12134841 ONLY/ELECTRIC HEAT, STD SCCR SCHEMATIC; SHEET 2, POWER, DUAL INDOOR FAN, EFLEX, 2-STAGE Symbio 700 Main Unit 230V...
  • Page 74 Wiring Diagrams Table 24. Wiring diagrams (continued) Drawing Schematic Type Voltage Description Controls Number SCHEMATIC/COMPONENT LOCATION - ELECTRIC HEAT - 54 KW 460V/ Symbio 700 Electric Heat 460V/575V 12134306 575V Symbio 700 Electric Heat 230V 12134307 SCHEMATIC/COMPONENT LOCATION - ELECTRIC HEAT - 18 KW 208/240V Symbio 700 Electric Heat 230V...

  • Page 75: Piping Diagrams

    Piping Diagrams Figure 82. Piping diagram - 3 to 5 tons ultra high efficiency - cooling (T/Y)ZK (036-060) RT-SVX093A-EN...
  • Page 76 Piping Diagrams Figure 83. Piping diagram - 3 to 5 tons ultra high efficiency - hot gas reheat (T/Y)ZK (036-060) THERMISTOR RT-SVX093A-EN...
  • Page 77 Piping Diagrams Figure 84. Piping diagram - 6 to 10 tons ultra high efficiency - cooling (T/Y)ZK (072-120) THERMISTOR RT-SVX093A-EN...
  • Page 78 Piping Diagrams Figure 85. Piping diagram 6 to 10 tons ultra high efficiency - hot gas reheat (T/Y)ZK (072-120) THERMISTOR RT-SVX093A-EN...
  • Page 79 Piping Diagrams Figure 86. Piping diagram – 12.5 to 15 tons ultra high efficiency - cooling (T/Y)ZK (150-180) RT-SVX093A-EN...
  • Page 80 Piping Diagrams Figure 87. Piping diagram – 12.5 to 15 tons ultra high efficiency - hot gas reheat (T/Y)ZK (150-180) RT-SVX093A-EN...
  • Page 81 Piping Diagrams Figure 88. Piping diagram – 17.5 to 25 tons ultra high efficiency - cooling (T/Y)ZK (210-300) RT-SVX093A-EN...
  • Page 82 Piping Diagrams Figure 89. Piping diagram – 17.5 to 25 tons ultra high efficiency - hot gas reheat (T/Y)ZK (210-300) RT-SVX093A-EN...

  • Page 83: Gas Heat Operation And Maintenance

    Gas Heat Operation and Maintenance Gas Heat Unit General WARNING Information Safety Hazards! Failure to follow instructions below could result in WARNING death or serious injury. Hazard of Explosion or Fire! • Never perform any maintenance procedures until Failure to follow instructions could result in death or the electrical power to the unit is turned off.

  • Page 84: Safety Controls

    STOP and proceed with the instructions as or other energy storing components provided by per above Warning. If you do not smell gas, go to the Trane or others, refer to the appropriate next step. manufacturer’s literature for allowable waiting periods 8.

  • Page 85: Turning Off Gas To Unit

    Open windows and doors. equipment damage. • Alert others and evacuate building immediately. Drain and vent coils when not in use. Trane recommends glycol protection in all possible freezing • From a phone outside of the building, applications. Use a glycol approved for use with immediately call your gas supplier.

  • Page 86: Limited Warranty

    Precedent (Models TZK, YZK) MERCHANTABILITY AND FITNESS FOR PARTICULAR USE, AND IN NO EVENT SHALL WARRANTOR BE This warranty is extended by Trane to the original LIABLE FOR ANY INCIDENTAL OR CONSEQUENTIAL purchaser and to any succeeding owner of the real DAMAGES.
  • Page 87 Notes RT-SVX093A-EN...
  • Page 88 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.

This manual is also suitable for:

Precedent tzk036 seriesPrecedent tzk300 seriesPrecedent yzk300 series

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