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Installation, Operation, and Maintenance
Packaged Rooftop Air
Conditioners Foundation™
Cooling and Gas/Electric
3 to 5 Tons, 60 Hz
Model Number: GDK036-060
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.
August 2024
SAFETY WARNING
RT-SVX079B-EN
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Table of Contents
Troubleshooting
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Summary of Contents for Trane GDK036-060
- Page 1 Conditioners Foundation™ Cooling and Gas/Electric 3 to 5 Tons, 60 Hz Model Number: GDK036-060 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. Improperly installed, adjusted or altered equipment by an unqualified person could result in death or serious injury.
- 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 Non-Trane personnel should always follow local regulations. This document and the information in it are the property of Trane, and may not be used or reproduced in whole or in part without written permission. Trane reserves the right to WARNING...
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Page 4: Table Of Contents
Table of Contents Model Number Description ....6 Main Unit Power ......23 Standard Wiring . - Page 5 Table of Contents Condensate Overflow Switch ... 39 For Commercial Unitary Equipment Rated 25 Tons and Under and Related Unit Economizer Control (ECA) ... . . 39 Accessories.
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Page 6: Model Number Description
Model Number Description Digit 1 — Unit Function Digit 10 — Heating Capacity Digit 15 — Supply Fan/Motor G = DX Cooling, Gas Heat L = Gas Heat - Low 0 = Standard Motor M = Gas Heat - Medium D = Oversized Motor X = Gas Heat - SS Ht Ex - Low Digit 2 —... -
Page 7: General Information
General Information WARNING • Inspect the complete exterior for signs of shipping damages to unit or packing material. Fiberglass Wool! • Verify that the nameplate data matches the sales order Exposure to glass wool fibers without all necessary and bill of lading. PPE equipment could result in cancer, respiratory, •... -
Page 8: Economizer Control Actuator Electromechanical Control
General Information Economizer Control Actuator SI input of the LSD is interrupted and the compressor contactor coil supply is disabled by the LSD. It has an Electromechanical Control automatic lockout. The ECA monitors the mixed air temperature, return air Power Exhaust Control (Optional) temperature, minimum position setpoint (local or remote), power exhaust setpoint, CO setpoint, CO... -
Page 9: Initiation Of Operating Modes - Jade
General Information Setpoints Menu occupancy sensor must utilize a normally open contact for proper operation. DCV SET = desired CO ppm to start DCV If an occupancy sensor is not used, another option to VENTMAX = desired maximum position w/DCV and controlling occupied and unoccupied status is to use the G occupied status (2-speed applications require LO and HI input (fan is running). -
Page 10: Dimensional Data
Dimensional Data Below figure 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 assure adequate serviceability, cataloged unit capacity, and condenser air. - Page 11 Dimensional Data Figure 2. Cooling with gas heat — overview (gas/electric) DISCONNECT SWITCH ACCESS GAS CONNECTION (GDK UNITS ONLY) CONDENSATE DRAIN CONNECTION Figure 3. Cooling with gas heat — front and side views (gas/electric) 42.004” 42.558” 20.735” 15.860” 7.860” 42.175” 29.671”...
- Page 12 Dimensional Data Figure 4. Cooling with optional electrical heat and gas/electric units — bottom view RETURN 25-5/8” 5-19/32” 7-1/32” 10-7/8” 17-3/4” 27-1/8” 19-3/8” 17-3/8” 15-3/8” 12-27/32” 6-25/32” 12-1/8” 5-19/32” 25-1/8” 20-11/16” SUPPLY Figure 5. Cooling with optional electrical heat and gas/electric units — back view (horizontal configuration) RETURN SUPPLY 25.125”...
- Page 13 Dimensional Data Figure 6. Cooling with optional electrical heat and gas/electric units — roof curb 14.000” 3.000” 70.875” 21.060” 41.990” 15.188” SUPPLY 3.000” 14.430” 36.938” 32.188” RETURN 3.548” 14.000” 1.500” 41.986” 70.871” Figure 7. Cooling with optional electrical heat and gas/electric units — downflow unit clearance CLEARANCE CLEARANCE UNIT OUTLINE...
- Page 14 Dimensional Data Figure 8. Cooling with optional electrical heat and gas/electric units — barometric relief and economizer ECONOMIZER BAROMETRIC RELIEF 42” BAROMETRIC RELIEF 11-29/32” 7-31/32” 7-27/32” 13-13/32” 14-5/8” 4-1/8” 3-9/32” 32-5/32” 47-15/16” 76-13/16” RIGHT VIEW OF UNIT BACK VIEW OF UNIT Figure 9.
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Page 15: Weights
Weights Table 1. Maximum unit and corner weights (lb) and center of gravity dimensions (in.) cooling with optional electric heat (gas/electric) units only Weights (lb) Corner Weights Center of Gravity (in.) Tons Unit Model No. Shipping Length Width GDK036* GDK048* GDK060* Weights are approximate. -
Page 16: A2L Information
• To be repaired only by trained service At all times, Trane’s maintenance and service guidelines personnel. shall be followed. If in doubt, contact Trane technical support for assistance. • Do not puncture refrigerant tubing. All maintenance staff and others working in the local area •... -
Page 17: 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 18: 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 19: 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 20: Leak Detection System
A2L Information room if the passageway is a permanent opening, extends leak, the following mitigation actions will be initiated until to the floor and is intended for people to walk through. refrigerant has not been detected for at least 5 minutes: Adjacent rooms on the same floor of the building and •... -
Page 21: Installation
Installation Unit Foundation Note: For sound consideration, cut only the holes in the roof deck for the ductwork penetrations. Do not cut WARNING out the entire roof deck within the curb perimeter. Risk of Roof Collapsing! If a Curb Accessory Kit is not used: Failure to ensure proper structural roof support could 1. -
Page 22: Factory Installed Economizer
Installation Factory Installed Economizer Figure 12. Discard cover plate • Confirm the economizer is pulled out into the operating position. Refer to the standard or low leak economizer Installation Instructions for proper position and setup. • Install all access panels. Controller Wiring Schematic - LLE For additional information, go to the Installation Instructions ACC-SVN203*-EN and ACC-SVN205*-EN. -
Page 23: Filter Installation
Installation Main Unit Power Note: Use 1-inch PVC pipe to connect to the drain pan outlet provided in the unit. This is a slip fit joint (no WARNING threads). Do not use PVC glue to connect condensate drain, thread sealing compound or Proper Field Wiring and Grounding Teflon tape may be used. -
Page 24: Control Power Transformer
Installation Figure 15. Through the base electrical option 1. Use copper conductors unless otherwise specified. 2. Confirm AC control wiring between the controls and the units termination point does not exceed three (3) ohms/ conductor for the length of the run. Note: Resistance in excess of 3 ohms per conductor could cause component failure due to insufficient AC voltage supply. -
Page 25: Gas Heat Data
Installation Gas Heat Data Table 5. Gas heater operating data Heating Input Rate (Btu/h) 72,000 100,000 115,000 Minimum Supply Gas Pressure Natural/LP 4/11 4/11 4/11 Manifold Gas Pressure Combustion Blower Suction Pressure (1 Stage) -0.50 to -0.55 -0.50 to -0.55 -0.50 to -0.55 Combustion Blower Suction Pressure (2 Stage) -
Page 26: Voltage Imbalance
Installation Figure 18. Typical unit gas train configuration If the voltage imbalance is over 2 percent, notify the proper agencies to correct the voltage problem before operating this equipment. Electrical Phasing (Three Phase Motors) The compressor motor(s) and the supply fan motor are internally connected for the proper rotation when the incoming power supply is phased as A, B, C. -
Page 27: Compressor Crankcase Heaters
Installation switch or circuit protection switch and remove the ☐ Check the supply fan belts for proper tension and the phase sequence indicator. fan bearings for sufficient lubrication. If the belts require adjustment, or if the bearings need lubricating, refer to Compressor Crankcase Heaters the maintenance section of this manual for instructions. -
Page 28: Through-The-Base Gas Utility Option
Installation Field Installed Connections 2. If the conduit required for your application is larger than 1 1/2–in., remove the termination plate and connect to WARNING the larger hole using field supplied reducing washers. Hazardous Voltage w/Capacitors! Route the power wires and ground conductor through conduit and into the bottom of the factory installed Failure to disconnect power and discharge capacitors disconnect switch. - Page 29 Figure 20, p. 29 and make the union Model Dimension connection to the field piping and to the gas train. Refer to the unit IOM for checkout procedures. GDK036-060 1.62–in. Figure 20. Through-the-base gas piping installation Support bracket Pipe union Grommet 1/2”...
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Page 30: Pre Start
Pre Start Verifying Proper Air Flow (Units Fan Test and Minimum Ventilation. Connect red thermostat wire (R) to black thermostat wire (G). with Belt Drive Indoor Fan) Economizer Cooling. Connect a jumper wire across OAT Much of the systems performance and reliability is closely on Economizer Control (ECA). -
Page 31: Start-Up
Start-up Standard Economizer Start-Up Notes: • The checkout tests can all be performed at the 1. Set the minimum position setpoint for the economizer time of installation or any time during the to the required percentage of minimum ventilation using operation of the system. -
Page 32: Heating Start-Up
Start-up Final System Set Up 4. Repeat Step 1 through Step 3 for each refrigerant circuit. After completing all of the pre-start and startup procedures 5. To stop the SERVICE TEST, turn the main power outlined in the previous sections (i.e., operating the unit in disconnect switch to the Off position or proceed to the each of its modes through all available stages of cooling next component start-up procedure. -
Page 33: Maintenance
Maintenance Make sure all personnel are standing clear of the unit deflection value determined in Step before proceeding. The system components will start when 3. Set the small O-ring at zero on the force scale of the the power is applied. gauge plunger. -
Page 34: Monthly Maintenance
Maintenance Monthly Maintenance NOTICE Equipment Damage! Before completing the following checks, turn the unit OFF and lock the main power disconnect switch open. Forcibly turning the motor shaft can damage the gear train and motor beyond repair. WARNING Never turn the motor shaft by hand or with a Hazardous Voltage! wrench. -
Page 35: Coil Cleaning
Maintenance Coil Cleaning Microchannel (MCHE) Coils Regular coil maintenance, including annual cleaning NOTICE enhances the unit’s operating efficiency by minimizing the Coil Damage! following: Failure to follow instructions below could result in • Compressor head pressure and amperage draw coil damage. •... - Page 36 Maintenance RT-SVX079B-EN...
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Page 37: Troubleshooting
Troubleshooting WARNING the main power disconnect switch and removing the test mode connections. Hazardous Service Procedures! 7. Refer to the individual component test procedures if Failure to follow all precautions in this manual and on other components are suspect. the tags, stickers, and labels could result in death or serious injury. -
Page 38: Low Leak Economizer - (Lle)
Troubleshooting a. LED will be flashing to indicate that a Safety Input 4. Press has opened while a Y call is present. 5. “ALARM ERASED” is displayed. b. Compressor lockout is indicated by a solid 6. Press (Menu Up) to complete the action and return (nonflashing) red LED. -
Page 39: Condensate Overflow Switch
Troubleshooting approximately 30 seconds, turn the Mode selection switch • Slow Flash: Normal, Not OK to Economize to the desired mode, i.e. Heat, Cool or Auto. • Fast Flash - 1/4 Second On / 2 Seconds Off: Method 2 – Error Code: Communications Failure •... -
Page 40: Wiring Diagrams
Wiring Diagrams Note: Wiring diagrams can be accessed via e-Library by number search field or by contacting technical entering the diagram number in the literature order support. Table 15. Wiring diagrams Type of Airflow Schematic Type Voltage Diagram Number Description 036-060, 60Hz, 1 STAGE Gas Heat 12134760 208–230... -
Page 41: Warranty
Products Covered — This warranty is extended by Trane, and which have been returned to the warrantor. and applies to the following products: The warrantor’s warranty is conditional on the Customer... - Page 42 Notes RT-SVX079B-EN...
- Page 43 Notes RT-SVX079B-EN...
- Page 44 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. We are committed to using environmentally conscious print practices.
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