IR Ingersoll Rand TZC036E Installation, Operation And Maintenance Manual
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IR Ingersoll Rand TZC036E Installation, Operation And Maintenance Manual

Packaged rooftop air conditioners
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Installation, Operation, and Maintenance
Packaged Rooftop Air Conditioners
Precedent™ with eFlex™
Technology, Electric/Electric
3 to 10 Tons - 60 Hz
Model Numbers:
Model Numbers:
Model Numbers:
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.
April 2020
TZC036E
TZC048F
TZC060E
RT-SVX45F-EN
TZC072F
TZC090F
TZC102F
TZC120F
SAFETY WARNING

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  • Page 1 Installation, Operation, and Maintenance Packaged Rooftop Air Conditioners Precedent™ with eFlex™ Technology, Electric/Electric 3 to 10 Tons - 60 Hz Model Numbers: TZC036E TZC072F Model Numbers: TZC048F TZC090F Model Numbers: TZC060E TZC102F Model Numbers: TZC120F 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 Introduction Read this manual thoroughly before operating or servicing this unit. WARNING Proper Field Wiring and Grounding Warnings, Cautions, and Notices Required! Safety advisories appear throughout this manual as Failure to follow code could result in death or serious required. Your personal safety and the proper operation of injury.
  • Page 3 Introduction Trademarks All trademarks referenced in this document are the trademarks of their respective owners. Revision History • Update includes addition of 6 to 10 ton eFlex™ models RT-SVX45F-EN...

  • Page 4: Table Of Contents

    Table of Contents Model Number Descriptions Control Power Transformer ...31 ....6 Model Number Notes Controls using DC Analog  .
  • Page 5 Table of Contents Resetting Cooling and Ignition Lockouts 47 Zone Temperature Sensor (ZTS) Service Indi- cator ......48 Clogged Filter Switch .

  • Page 6: Model Number Descriptions

    Model Number Descriptions Digit 1 - Unit Type Digit 14 - Fresh Air Selection Digit 19 - Disconnect/Circuit DX Cooling No Fresh Air Breaker (three-phase only) DX Cooling, Gas Heat Economizer, Dry Bulb 0-100% No Disconnect/No Circuit Breaker without Barometric Relief Unit Mounted Non-Fused...

  • Page 7: Model Number Notes

    Model Number Descriptions 13. Requires selection of 2” pleated Digit 27 - Unit Hardware filters (option B or C) for Digit 16. Enhancements No Enhancements 14. Discharge Air Sensing Tube is Stainless Steel Drain Pan standard. Digit 31 - Advanced Unit 15.

  • Page 8: General Information

    General Information Unit Inspection Compressor Nameplate The nameplate for the compressors are located on the side As soon as the unit arrives at the job site of the compressor. • Verify that the nameplate data matches the data on the Variable speed compressors are not marked with a RLA.
  • Page 9 General Information case of indoor fan failure (cooling) or outdoor fan failure Note: On units equipped with factory installed MERV 13 (heating). filters, a clogged filter switch with different pressure settings will be installed. This switch will Duct Mounted Relative Humidity Sensor close when the differential pressure is (BAYSENS037*) approximately 0.8' w.c.
  • Page 10 General Information high thermal event in the air conditioning or ventilation • The red light indicates that unit operation has been ducts. The sensor is designed to mount directly to the prevented. There are two conditions that will prevent sheet metal duct. Each kit contains two sensors. The return unit operation: air duct sensor (X1310004001) is set to open at 135ºF.
  • Page 11 General Information temperature sensing (uncovered). Wiring procedures vary Smoke Detector Sensor (Optional) according to the particular application and equipment This sensor provides high limit “shutdown” of the unit and involved. Refer to the unit’s wiring diagrams for proper requires a manual reset. The sensor is used to detect connections.
  • Page 12 General Information System Input Devices & Functions The RTRM must have a zone sensor or thermostat input in order to operate the unit. The flexibility of having several mode capabilities depends upon the type of zone sensor or thermostat selected to interface with the RTRM. The descriptions of the following basic Input Devices used within the RTRM network are to acquaint the operator with their function as they interface with the various modules.

  • Page 13: Pre-Installation

    Pre-Installation Replace the heater elements if they present symptoms noted in item Step 2 Step 3 above. WARNING Fiberglass Wool! Exposition 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.

  • Page 14: Dimensions And Weights

    Single Unit 4. Addition clearance required when 914 MM barometric damper or economizer is installed. 3’0” 914 MM Note 4 12” 12 1/2” 16 3/4” 305 MM 426 MM 318 MM 9 1/8” 232 MM TZC048F, TZC060E Units TZC036E Units RT-SVX45F-EN...
  • Page 15 Maximum Base Model Weights Corner Weights Center of Gravity (in.) Unit Tons Model No. Shipping Length Width TZC036E TZC048F TZC060E TZC072F TZC090F TZC102F TZC120F 1302 1108 (a) Weight are approximate for 1st 10 digit model number. (b) Corner weights are given for information only.
  • Page 16 Dimensions and Weights (a) (b) Table 2. Factory installed options (fiops)/accessory net weights (lbs) T/YZC036E T/YZC048F-060E T/YZC072F T/YZC090-102F T/YZC120F Net Weight Net Weight Net Weight Net Weight Net Weight Accessory 3 Tons 4 to 5 Tons 6 Tons 7.5 to 8.5 Tons 10 Tons Barometric Relief Coil Guards...
  • Page 17 Dimensions and Weights Figure 6. Cooling and gas/electric - 3 tons - horizontal Figure 9. Cooling and gas/electric - 3 tons ultra high airflow supply/return efficiency - downflow duct connections - field fabricated 3 3/16” 14 1/16” 81 MM (357 MM) 24 3/8”...
  • Page 18 Dimensions and Weights Figure 11. Cooling and gas/electric - 3 tons ultra high Figure 14. Cooling and gas/electric - 4 to 5 tons ultra efficiency- economizer & barometric relief high efficiency damper hood(a) Top Panel Condenser Fan Evaporator Section Access Panel 40 7/8”...
  • Page 19 Dimensions and Weights Figure 17. Cooling and gas/electric - 4 to 5 tons ultra Figure 19. Cooling and gas/electric - 4 to 5 tons ultra high efficiency- unit clearance and roof high efficiency- downflow duct connections opening field fabricated Note: All dimensions are in inches/millimeters. 17 3/4”...
  • Page 20 Dimensions and Weights Figure 21. Cooling and gas/electric - 4 to 5 tons ultra Figure 24. Cooling and gas/electric - 6 to 10 tons ultra high efficiency- swing diameter for hinged high efficiency - horizontal airflow supply and door(s) option return Note: All dimensions are in inches/millimeters.
  • Page 21 Dimensions and Weights Figure 27. Cooling and gas/electric - 6 to 10 tons ultra Figure 29. Cooling and gas/electric - 6 to 8.5 tons ultra high efficiency - duct connections field high efficiency - swing diameter for hinged fabricated door(s) option Note: All dimensions are in inches/millimeters.
  • Page 22 Dimensions and Weights Figure 31. Gas/electric - 6 to 10 tons ultra high efficiency Figure 34. Cooling and gas/electric - 10 tons ultra high - height of gas pipe required from inside of efficiency - unit clearance and roof opening base of unit to gas shut-off assembly (factory Note: All dimensions are in inches/millimeters.
  • Page 23 Dimensions and Weights Figure 37. Cooling and gas/electric - 10 tons ultra high efficiency - swing diameter for hinged door(s) option Note: All dimensions are in inches/millimeters. Applicable to Y_C models only 17 13/16” 451 MM 22 1/2” 22” 572 MM 559 MM RT-SVX45F-EN...

  • Page 24: Installation

    Installation Foundation Figure 39. 4, 5 tons ultra high efficiency - horizontal supply & return air openings Horizontal Units 3 7/8” 98 MM If the unit is installed at ground level, elevate it above the snow line. Provide concrete footings at each support 9 3/8”...

  • Page 25: Roof Curb

    Installation Figure 41. 3 tons ultra high efficiency - downflow airflow Figure 44. Cooling and gas/electric - 10 tons ultra high supply/return - through-the-base utilities efficiency - downflow airflow supply/return, through-the-base utilities 3 5/8” 14” 9 1/4” 15 1/2” 92 MM 356 MM 235 MM 394 MM...

  • Page 26: Rigging

    Installation 3. Rig the unit as shown in the weights section. Attach Note: To assure proper condensate flow during adequate strength lifting slings to all four lifting operation, the unit (and curb) must be level. brackets in the unit base rail. Do not use cables, chains, If the unit is elevated, a field constructed catwalk around or slings except as shown.

  • Page 27: Factory Installed Economizer

    Installation • If applicable, install pitch pocket for power supply 3. For the 3 ton unit, slide each duct cover with insulation through building roof. side up into corresponding base openings until inward edge of duct cover engages with the 2 retaining clips •...

  • Page 28: Air-Fi™ Wireless Communication Interface

    4. Slide the top bracket down the copper sensing tube. For TZC036E units insert the tab on the left side into the slot on the indoor coil block off and secure the right Note: Cable ties must be removed to allow the cable to side of the bracket with one of the 3 screws removed in extend to the horizontal mounting location.

  • Page 29: Main Electrical Power Requirements

    Installation Main Electrical Power Condensate Drain Configuration Requirements WARNING Hazardous Voltage! WARNING Failure to disconnect power before servicing could Hazardous Voltage w/Capacitors! result in death or serious injury. Disconnect all electric power, including remote disconnects before servicing. Failure to disconnect power and discharge capacitors Follow proper lockout/tagout procedures to ensure the before servicing could result in death or serious injury.

  • Page 30: Filter Installation

    Installation 8. Replace the front support panel by aligning the panel Weights chapter. To insure that the unit’s supply power with tabs in the raceway. Align the plugged wiring is properly sized and installed, follow the following condensate drain pan coupling in the grommeted hole guidelines.

  • Page 31: Optional Tbue Wiring (Through The Base Electrical Option)

    Installation Optional TBUE Wiring (Through the Base WARNING Electrical Option) Proper Field Wiring and Grounding Location of the applicable electrical service is illustrated below. Refer to the customer connection diagram that is Required! shipped with the unit for specific termination points. The Failure to follow code could result in death or serious termination points, depending on the customer option injury.
  • Page 32 Installation Note: If digit 9 in the unit model number equals “E” Figure 55. ReliaTel™ relative humidity sensor (electromechanical control), accessory relay (enhanced dehumidification operation) BAY24X042 is required if the thermostat does not Low Voltage energize the fan circuit in the heating mode. Terminal Block NLTB Table 3.

  • Page 33: Space Temperature Averaging

    Installation Communication Refrigeration Communication Refrigeration Interface Module Interface Module Unpowered Convenience Outlet ReliaTel Conventional Wiring ReliaTel Route Field Wiring as shown TBU Wiring Secure Field and Secure with 2 Wire Ties Route Field Wiring as shown Installed Wiring and Secure with 3 Wire Ties for Convenience Option Outlet with...
  • Page 34 Installation Figure 58. Typical field wiring diagrams for optional controls (ReliaTel™ only) BAYSENS075* BAYSENS075* BAYSENS108* BAYSENS106* BAYSENS110* BAYSENS119* BAYSENS073* BAYSENS074* BAYSENS075* ASYSTAT669A OPTIONAL REMOTE SENSOR RT-SVX45F-EN...
  • Page 35 Installation Table 4. Temperature vs. resistance Temperature Degrees F° Degrees C° Nominal Resistance -20° -28.9° 170.1 K - Ohms -15° -26.1° 143.5 K - Ohms -10° -23.3° 121.4 K - Ohms -5° -20.6° 103.0 K - Ohms 0° -17.8° 87.56 K - Ohms 5°...

  • Page 36: Pre-Start

    Pre-Start Use the checklist provided below in conjunction with the If the voltage readings of the supply power Example: “General Unit Requirements” checklist to ensure that the measured 221, 230, and 227, the average volts would be: unit is properly installed and ready for operation. 221 + 230 + 227 = 226 Avg.

  • Page 37: Compressor Crankcase Heaters

    Pre-Start • Close the field supplied main power disconnect switch face of the monitor is red, correct supply power or circuit protector switch that provides the supply fault. power to the unit. WARNING WARNING Live Electrical Components! Live Electrical Components! Failure to follow all electrical safety precautions when exposed to live electrical components could result in Failure to follow all electrical safety precautions when...

  • Page 38: Test Modes

    Pre-Start Table 5. Service test guide for component operation Modulating Multi-Speed Fan Test Step Mode Econ Comp 1 Comp 2 Heat 1 Heat 2 Resistance Output Output Minimum Position Setpoint 0% Ω 2.2K Minimum Selectable Ventilation Economizer Ω Open 3.3K Test Open Cool Minimum...

  • Page 39: Unit Startup

    Unit Startup “Default Operation” section above with the exception of Verifying Proper Air Flow the supply fan speed when the unit has an active cooling demand and the economizer is enthalpy enabled. WARNING Heating Operation Live Electrical Components! During Heating operation, the control will monitor the Space Temperature and Space Heating setpoint and with Failure to follow all electrical safety precautions when a PI control algorithm determine if active heating capacity...

  • Page 40: Return Air Smoke Detector

    Unit Startup 3. Turn the MIN POS - DCV potentiometer on the RTEM Zone Temperature Control without a Night clockwise to open or counter-clockwise to close. The Setback Panel or ICS - Unoccupied Cooling damper will open to this setting for low speed fan When a field supplied occupied/unoccupied switching operation.

  • Page 41: Compressor Startup

    Unit Startup leads (at the compressor Terminal block) to check the internal phasing. If the compressor runs WARNING backward for an extended period (15 to 30 minutes), Rotating Components! the motor winding can overheat and cause the motor winding thermostat to open. Failure to follow all safety precautions below could result in rotating components cutting and slashing 2.

  • Page 42: Final System Setup

    Unit Startup Figure 61. 5T ultra high efficiency unit CN101 1 – OFF 2 – OFF 3 – ON 4 – OFF 5 – ON 6 – OFF CN102 CN105 CN108 CN107 (a) For TZC060E3 dip switch settings, reference RT-SVD007*-EN. Final System Setup After completing all of the pre-start and startup procedures outlined in the previous sections (i.e.,...

  • Page 43: Maintenance

    Maintenance • Manually rotate the condenser fan(s) to ensure free Monthly Maintenance movement and check motor bearings for wear. Verify that all of the fan mounting hardware is tight. • Inspect the F/A-R/A damper hinges and pins to ensure WARNING that all moving parts are securely mounted.

  • Page 44: Microchannel (Mche) Coils

    Maintenance evaporator water carryover; fan brake horsepower, due to Round Tube Plate Fin (RTPF) Coils increase static pressure losses; airflow reduction. At least once each year, or more often if the unit is located WARNING in a “dirty” environment, clean the evaporator and condenser coils using the instructions outlined below.

  • Page 45: Annual Maintenance

    Maintenance Annual Maintenance Hail Guard Reinstallation 10. To reinstall the hail guard, locate the bottom of the hail Clean and repaint any corroded surface. guard in the lower bracket and secure it to the upper unit bracket with the attached fasteners. Final Process Note: Secure hail guard latches.

  • Page 46: Troubleshooting

    Troubleshooting • Heating status WARNING • Cooling status If a System failure is indicated, proceed to Step 4. If no Hazardous Service Procedures! failures are indicated, proceed to Step Failure to follow all precautions in this manual and on 4. If a System failure is indicated, recheck Step 1 Step the tags, stickers, and labels could result in death or...

  • Page 47: System Failure

    Troubleshooting Zone Sensor LED 3 (Cool) System Failure “On” when the cooling cycle is operating. Measure the voltage between terminals J6-9 & J6-6. “Off” when the cooling cycle terminates or the LED fails. Normal Operation = approximately 32 VDC “Flashing” indicates a cooling failure. System Failure = less than 1 VDC, approximately 0.75 VDC Test Mode = voltage alternates between 32 VDC &...

  • Page 48: Zone Temperature Sensor (Zts) Service Indi

    Troubleshooting Method 2 Test 2 - Cooling Set Point (CSP) and Heating Set Point (HSP) To reset the system at the unit, cycle the unit power by turning the disconnect switch “Off” and then “On”. Table 7. Cooling setpoint and heating setpoint Lockouts can be cleared through the building Nominal ZTEMP management system.

  • Page 49: Programmable & Digital Zone

    Troubleshooting mA corresponds to 0% RH and 20 mA corresponds to 100% RH. WARNING Hazardous Voltage! % RH Failure to disconnect power before servicing could result in death or serious injury. Disconnect all electric 10.4 power, including remote disconnects before servicing. 12.0 Follow proper lockout/tagout procedures to ensure the 13.6...

  • Page 50: Unit Economizer Control (Eca) Trouble

    Troubleshooting Table 8. Fault detection and diagnostic codes Primary Fault Codes Information Code Temp Mixed Air Outdoor Pressure Space Unit Economizer RTEM Sensor Airflow Unit Fails Damper Temp Temp Dead band Press Dead Economizing Failures Actuator Comm Fail Sensor Fail Position % Sensor Sensor...

  • Page 51: Compressor Inverter Drive

    Troubleshooting • 5 Flashes: OA Quality Sensor • 6 Flashes: OA Humidity Sensor • 7 Flashes: OA Temp Sensor • 8 Flashes: MA Temp Sensor • 9 Flashes: RAM Fault • 10 Flashes: ROM Fault • 11 Flashes: EEPROM Fault WARNING Live Electrical Components! Failure to follow all electrical safety precautions when...

  • Page 52: Unit Wiring Diagrams Numbers

    Unit Wiring Diagrams Numbers Note: Wiring diagrams can be accessed using e-Library order number search field or by contacting by entering the diagram number in the literature technical support. Table 10. Unit wiring diagram numbers Schematic Type Drawing Number Description Diagram Power TZC(036E, 048F, 60E)3 4366-8317 Ultra High Efficiency - Variable Speed Comp...

  • Page 53: Limited Warranty

    Limited Warranty residential application. Commercial use is any application Electric Air Conditioner where the end purchaser uses the product for other than personal, family or household purposes. TZC (Parts Only) **A 5 year limited warranty is provided for the optional Models Less Than 20 Tons for Commercial "Low Leak"...
  • Page 56 Trane and American Standard create comfortable, energy efficient indoor environments for commercial and residential applications. For more information, please visit trane.com or americanstandardair.com. Trane and American Standard have a policy of continuous product and product data improvement and reserve the right to change design and specifications without notice.

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