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Installation, Operation, and Maintenance
Packaged Rooftop Air
Conditioners Foundation™
Cooling Only and Electric Heat
15 to 25 Tons, 60 Hz
Model Numbers: ECC180-300
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.
December 2022
SAFETY WARNING
RT-SVX50M-EN
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Summary of Contents for Trane Foundation ECC180-300
- Page 1 Installation, Operation, and Maintenance Packaged Rooftop Air Conditioners Foundation™ Cooling Only and Electric Heat 15 to 25 Tons, 60 Hz Model Numbers: ECC180-300 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 This document and the information in it are the property of policies. Trane, and may not be used or reproduced in whole or in part without written permission. Trane reserves the right to • Non-Trane personnel should always follow local revise this publication at any time, and to make changes to regulations.
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Page 4: Table Of Contents
Table of Contents Model Number Description ....6 Electromechanical Controls – Test Procedure ....... 25 General Information . - Page 5 Table of Contents Maintenance ....... 33 Resetting Cooling and Heating Lockouts .
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Page 6: Model Number Description
Model Number Description Digit 1 — Unit Type Digit 11— Minor Design Sequence Digit 17 — Condenser Coil Protection E = Packaged Cooling, Electric Heat 0 = Standard Coil 4 = CompleteCoat™ Condenser Coil Digit 2 — Efficiency Digit 12,13 — Service Sequence Digit 18 —... -
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 safety input of the LSD. The compressor contactor coil is connected to the ‘CC’ terminal of the LSD. If the high Electromechanical Control pressure control switch or the discharge line thermostat is The ECA monitors the mixed air temperature, return air open, the 24 Vac signal to the SI input of the LSD is temperature, minimum position setpoint (local or remote), interrupted and the compressor contactor coil supply is... -
Page 9: Initiation Of Operating Modes - Jade
General Information Thermostat (TCONT402AN32DA) Low Leak Economizer Units This thermostat is a multi-stage 3 heat/2 cool, auto To configure the JADE controller, set: changeover digital display thermostat. It is a SYSTEM SETUP menu: OCC = INPUT nonprogrammable, wall-mounted thermostat, and it can be Attach the occupancy sensor to the OCC SENSOR wire used for economizer operation. -
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 optional electrical heat — overview (electric/electric) CONDENSATE DRAIN REFRIGERANT GAUGE ACCESS CONNECTION CUSTOMER POWER CONDUIT CONNECTION(ALTERNATE) DISCONNECT SWITCH ACCESS Figure 3. Cooling with optional electrical heat — front and side views (electric/electric) 58 5/8” 58 5/8”...
- Page 12 Dimensional Data Figure 4. Cooling with optional electrical heat units— plain view SUPPLY RETURN 64 9/16” 71 15/16” 68 9/16” 14 15/16” 7 7/16” 6 13/16” 6 15/16” 36 1/16” THROUGH THE BASE ELECTRICAL 7 3/8” 123 1/8” NOTES: 1.THRU-THE-BASE ELECTRICAL IS NOT STANDARD ON ALL UNITS. 2.VERIFY WEIGHT, CONNECTION, AND ALL DIMENSIONS WITH INSTALLER DOCUMENTS BEFORE INSTALLATION.
- Page 13 Dimensional Data Figure 6. Cooling with optional electrical heat — roof crub 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 14 Dimensional Data Figure 8. Cooling with optional electric heat — downflow unit clearance CLEARANCE 36” 914 MM UNIT OUTLINE CLEARANCE 68” 1727 MM CLEARANCE FORM TOP OF UNIT 72” MM (1829 MM) ROOF 76 1/2” OPENING 1943 MM CLEARANCE 48” 1219 MM 81”...
- Page 15 Dimensional Data Figure 10. Cooling with optional electric heat — manual damper MANUAL DAMPER HOOD 26 7/8” 12 13/16” 24 7/8” 123 1/8” 18 1/4” 86 15/16” BACK VIEW OF UNIT LEFT VIEW OF UNIT NOTE: VERIFY WEIGHT, CONNECTION, AND ALL DIMENSIONS WITH INSTALLER DOCUMENTS BEFORE INSTALLATION. RT-SVX50M-EN...
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Page 16: Weights
Weights Table 1. Maximum unit and corner weights (lb) and center of gravity dimensions (in.) Weights (lb) Corner Weights Center of Gravity (in.) Unit Model Tons Shipping Length Width ECC180A 2175 1850 17.5 ECC210A 2180 1855 ECC240A 2185 1860 ECC300A 2221 1896 Weights are approximate. -
Page 17: Rigging
Weights Rigging in the unit base rail. Do not use cables, chains, or slings except as shown. WARNING 3. Install a lifting bar, as shown in Figure 12, p. 17, to Heavy Object! protect the unit and to facilitate a uniform lift. The minimum distance between the lifting hook and the top Failure to follow instructions below could result in of the unit should be 7 feet. -
Page 18: Installation
Installation Unit Foundation Check with a roofing contractor for proper waterproofing procedures. WARNING Ductwork Risk of Roof Collapsing! Failure to ensure proper structural roof support could Elbows with turning vanes or splitters are recommended to cause the roof to collapse, which could result in death minimize air noise due to turbulence and to reduce static or serious injury and property damage. -
Page 19: Factory Installed Economizer
Installation ☐ Assemble and install the roof curb (if applicable). Refer Note: Use 1-inch PVC pipe to connect to the drain pan to the latest edition of the curb installers guide that outlet provided in the unit. This is a slip fit joint (no ships with each curb kit. -
Page 20: Main Unit Power
Installation Main Unit Power Figure 13. Through the base electrical option WARNING Proper Field Wiring and Grounding Required! Failure to follow code could result in death or serious injury. ELECTRO MECHANICAL All field wiring MUST be performed by qualified TBU FIELD WIRING. personnel. -
Page 21: Voltage Imbalance
Installation conduit with the high voltage power wiring. 5. Route low voltage wiring as per Figure 14, p. Table 3. Electromechanical thermostat 24V AC conductors with electromechanical unit Distance from Unit to Control Recommended Wire Size 22 gauge 0 - 30 feet 0 - 9.1 m 0.33 mm^2 20 gauge... -
Page 22: Electrical Phasing
Installation WARNING • VD = Line voltage reading that deviates the farthest from the average voltage Live Electrical Components! Example: Failure to follow all electrical safety precautions when The supply power line voltage readings (V1, V2, V3) are exposed to live electrical components could result in 221, 230, and 227 respectively.: death or serious injury. -
Page 23: Checklist
Installation Checklist WARNING Proper Field Wiring and Grounding Use the following checklist in conjunction with the general checklist (“General Unit Requirements,” p. 18) to ensure Required! that the unit is properly installed and ready for operation. Failure to follow code could result in death or serious injury. - Page 24 Installation Figure 15. Field wiring route RT-SVX50M-EN...
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Page 25: 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 26: Start Up
Start Up Electromechanical Controls - Table 4. Potentiometer settings (continued) Sequence Of Operation Potentiometer Dry Bulb Enthalpy Setting These units are offered with electromechanical controls. 23 Btu/lb (53 kJ/kg) 67°F (19.4°C) Note: The Condensate Overflow Switch (COF) (optional) will shut the unit down if the float is raised and the 22 Btu/lb (51 kJ/kg) 63°F (17.2°C) switch is closed. -
Page 27: Low Ambient Operation (Optional)
Start Up Low Ambient Operation (Optional) damper position this problem could be solved, but that would mean more fresh air than may be desired when the During low ambient operation, outside air temperature supply fan is at high speed. To overcome these situations, below 50°F, the Low Ambient Controller will cycle the the control will require the setting of two economizer outdoor fan motor "Off"... -
Page 28: Heating Operation
Start Up Emergency Stop opens the 24 Vac ground and opens all of the cooling contactors. This input de-energizes the 24 Vac output from the phase monitor and can be activated by opening a field supplied Heating Operation device connected to the LTB. Standard unit operation for heating will continue on units equipped with a two-speed indoor fan. -
Page 29: Economizer Set-Up
Start Up Table 7. Enthalpy operation no DCV (CO sensor) - 2 speed fan OA Good to Occupied Unoccupied Y1-I Y2-I FAN SPD Y1-O Y2-O economize? 0-v/Off 0-v/Off MIN POS L Closed 24-v/On 0-v/Off MIN POS L Closed High 24-v/On 24-v/On MIN POS H Closed... -
Page 30: Drain Pan Condensate Overflow Switch
Start Up Low Pressure Cutout Note: To disable the economizer to do functional testing, use a 10 mm wrench to completely unsecure the The low pressure cutouts are wired in series with the high shaft coupling. After testing, tighten shaft coupling pressure cutouts and the temperature discharge limits. -
Page 31: Lle Controls Test Procedure
Use the CHECKOUT menu in the Installation Instructions Note: Copeland ZP scroll compressors for R410A (ACC-SVN178*-EN) to test the damper operation and any units use Trane OIL00094. Compressor configured outputs. Only items that are configured are types and appropriate oil charge is listed in shown in the Checkout menu. -
Page 32: Heating Start-Up
Start Up Heating Start-Up each of its modes through all available stages of cooling and heating), perform these final checks before leaving the 1. Clamp an amp meter around one of 1 stage heater unit: power wires at the heater contactor. ☐... -
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 Table 13. Belt tension measurement and deflection ranges (mm/kg) Deflection Force (kg) Small P.D Range Belts Cross Super Gripbelts (mm) Gripnotch (mm) Steel Cable Gripbelts (mm) (mm) Section Min. Max. Min. Max. Min. 13.3–16.0 13.3 20.0 17.2 24.5 14.5 17.8 16.9–21.4 15.6... -
Page 35: Heating Season
Maintenance WARNING – ambient temperature – compressor oil level (each circuit) Hazardous Chemicals! – compressor suction and discharge pressures (each Failure to follow this safety precaution could result in circuit) death or serious injury. Coil cleaning agents can be either acidic or highly alkaline and can burn severely –... - Page 36 Maintenance Table 14. Unit data log (continued) -schematic(s) -connections Network ID RT-SVX50M-EN...
- Page 37 Maintenance RT-SVX50M-EN...
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Page 38: Troubleshooting
Troubleshooting WARNING Note: Note: You can also navigate to the Alarms menu at any time. Hazardous Service Procedures! 2. Once the alarm has been identified and the cause has Failure to follow all precautions in this manual and on been removed (for example, replaced faulty sensor), the tags, stickers, and labels could result in death or the alarm can be cleared from the display. -
Page 39: Resetting Cooling And Heating
Troubleshooting Table 16. FDD troubleshooting FAULTS Damper not Air temp. sensor Not economizing Economizing when it Excess outdoor TESTS modulating failure / fault when it should should not Damper Stuck Open Damper Stuck at Minimum Bad or Unplugged Actuator Sensor Hard Failure Actuator Mechanically Disconnected Resetting Cooling and Heating... -
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 17. Wiring diagrams Diagram Type of Airflow Schematic Type Voltage Description Number Schematic, PWR-EM-Cooling only with VFD- 15T-25T Power 208-575... -
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-SVX50M-EN...
- Page 43 Notes RT-SVX50M-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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