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Installation, Operation, and Maintenance
Packaged Rooftop Air Conditioners
Foundation™ Electric/Electric
15 – 22 Tons, 50Hz
Model:
EAC180-270AD
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
SAFETY WARNING
RT-SVX055D-EN
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Table of Contents
Related Manuals for Trane Foundation EAC180AD
Summary of Contents for Trane Foundation EAC180AD
- Page 1 Installation, Operation, and Maintenance Packaged Rooftop Air Conditioners Foundation™ Electric/Electric 15 – 22 Tons, 50Hz Model: EAC180-270AD 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 • If there is a risk of energized electrical contact, arc, or environment. Trane advocates the responsible handling of flash, technicians MUST put on all PPE in accordance all refrigerants-including industry replacements for CFCs with OSHA, NFPA 70E, or other country-specific such as HCFCs and HFCs.
- Page 3 This document and the information in it are the property of Follow EHS Policies! 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 death or serious injury.
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Page 4: Table Of Contents
Table of Contents Model Number Description ....5 General Information ..... 6 Unit Inspection . -
Page 5: Model Number Description
Model Number Description Digit 22— Not Used Digit 1 — Unit Type Digit 23— Not Used Packaged Cooling, Electric Heat Digit 2 — Efficiency ASHRAE 90.1 - 2010 Digit 24— Not Used Digit 3 — Airflow Configuration Digit 25 - System Monitoring Convertible Controls No Monitoring Controls... -
Page 6: General Information
General Information Unit Inspection additional respiratory protection. Use the appropriate NIOSH approved respiration in these situations. As soon as the unit arrives at the job site: First Aid Measures • Verify that the nameplate data matches the data on the •... -
Page 7: Sensors
General Information Phase Monitor programmable thermostat, and a 7-day programmable stat with night setback shall be available. In addition, it is The Phase Monitor is a three-phase line monitor module wall mounted. that protects against phase loss, phase reversal and phase Thermostat (TCONT402AN32DA) unbalance. -
Page 8: Dimensional Data
Dimensional Data Figure 1, p. 8 illustrates the minimum operating and service clearances for either a single or multiple unit installation. These clearances are the minimum distances necessary to assure adequate serviceability, cataloged unit capacity, and peak operating efficiency. Providing less than the recommended clearances may result in condenser coil starvation, “short-circuiting”... - Page 9 Dimensional Data Figure 2. Cooling with optional electrical heat units — overview Figure 3. Cooling with optional electrical units — front & side views — 15–22 tons standard efficiency RT-SVX055D-EN...
- Page 10 Dimensional Data Figure 4. Cooling with optional electrical heat units — plan view — 15–22 tons standard efficiency Figure 5. Foundation units — back view (horizontal configuration) — 15–22 tons standard efficiency RT-SVX055D-EN...
- Page 11 Dimensional Data Figure 6. Roof curb —15–22 tons standard efficiency Figure 7. Downflow duct connections—field fabricated 15–22 tons standard efficiency Notes: • Duct flanges mount 7-7/16” down inside the curb on the 1-1½” curb flanges. • Roofcurb is intended for downflow use only. 1”...
- Page 12 Dimensional Data Figure 8. Downflow unit clearance — 15–22 tons standard efficiency Figure 9. Manual damper — 15–22 tons standard efficiency RT-SVX055D-EN...
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Page 13: Unit Weights
Unit Weights Table 1. Maximum unit & corner weights (lb) and center of gravity dimensions (in.) (a), Weights (lb) Corner Weights Center of Gravity (in.) Unit Tons Model No. Shipping Length Width EAC180AD 2077 1758 55” 38” 17½ EAC210AD 2163 1844 54”... -
Page 14: Installation
Installation Unit Foundation When attaching the ductwork to the unit, provide a water- tight flexible connector at the unit to prevent operating sounds from transmitting through the ductwork. WARNING All outdoor ductwork between the unit and the structure should be weather proofed after installation is completed. Risk of Roof Collapsing! Note: For sound consideration, cut only the holes in the Confirm with a structural engineer that the roof... -
Page 15: Main Unit Power
Installation Filter Installation • Ensure unit-to-curb seal is tight and without buckles or cracks. Each unit ships with 2-inch filters installed. The quantity of • Install and connect a condensate drain line to the filters is determined by unit size. Access to the filters is evaporator drain connection. - Page 16 Installation • If the unit is not equipped with an optional factory Table 2. Electromechanical thermostat 24 Vac conductors installed nonfused disconnect switch, a field supplied disconnect switch must be installed at or near the unit 000–460 feet 18 gauge in accordance with the National Electrical Code (NEC 000–140 m 0.75 mm...
- Page 17 Installation Voltage Imbalance WARNING Three phase electrical power to the unit must meet Hazardous Voltage! stringent requirements for the unit to operate properly. Measure each leg (phase-to-phase) of the power supply. Disconnect all electric power, including remote disconnects before servicing. Follow proper lockout/ Each reading must fall within the utilization range stamped tagout procedures to ensure the power can not be on the unit nameplate.
- Page 18 Installation during compressor starts. Oil foaming occurs when refrigerant condenses in the compressor and mixes with the oil. In lower ambient conditions, refrigerant migration to the compressor could increase. When the compressor starts, the sudden reduction in crankcase pressure causes the liquid refrigerant to boil rapidly causing the oil to foam.
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Page 19: Pre Start
Pre Start Verifying Proper Air Flow (Units with Belt Drive Indoor Fan) Much of the systems performance and reliability is closely associated with, and dependent upon having the proper airflow supplied both to the space that is being conditioned and across the evaporator coil. The indoor fan speed is changed by opening or closing the adjustable motor sheave.... -
Page 20: Start Up
Start Up Sequence of Operation Drain Pan Condensate Overflow Switch (Optional) These units are offered with electromechanical controls. The Condensate Overflow Switch (COF) is utilized to Note: The Condensate Overflow Switch (COF) (optional) prevent water overflow from the drain pan. The float will shut the unit down if the float is raised and the switch is installed on the corner lip of the drain pan. -
Page 21: Heating Start-Up
Note: The Copeland SSA scroll compressors for R-410A final checks before leaving the unit: units use Trane OIL00094. The correct Oil for Trane CSHD is Trane OIL00079 or OIL00080. Compressor • Program the Night Setback (NSB) panel (if applicable) types are listed in Table 3, p. -
Page 22: Maintenance
Maintenance Make sure all personnel are standing clear of the unit 6. Compare the “force” scale reading (Step 5) with the before proceeding. The system components will start appropriate “force” value listed in Table 5, p. 22. If the when the power is applied. “force”... -
Page 23: Monthly Maintenance
Maintenance Monthly Maintenance • Generally inspect the unit for unusual conditions (e.g., loose access panels, leaking piping connections, etc.). Before completing the following checks, turn the unit OFF • Make sure that all retaining screws are reinstalled in and lock the main power disconnect switch open. the unit access panels once these checks are complete. -
Page 24: Final Process
Maintenance for Round Tube Plate Fin (RTPF) coils does not apply to _____________________________________________________ microchannel coils. (3) Wiring Diagram Numbers (from unit control panel) Moreover, chemical cleaners are a risk factor to MCHE due — schematic(s) to the material of the coil. The manufacturer does not _____________________________________________________ recommend the use of chemical cleaners to clean _____________________________________________________... -
Page 25: Troubleshooting
Troubleshooting Method 1 WARNING To reset the system from the space, turn the “Mode” Hazardous Service Procedures! selection switch at the thermostat to the “Off” position. After approximately 30 seconds, turn the “Mode” The maintenance and troubleshooting procedures selection switch to the desired mode, i.e. Heat, Cool or recommended in this section of the manual could result Auto. -
Page 26: 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 7. Wiring diagrams - 50Hz Type of Schematic Diagram Airflow Type Voltage Number Description Power... -
Page 27: Warranty
Company products covered by Use* this order (1) are free from defects in material and This warranty is extended by Trane, to the original workmanship and (2) have the capacities and ratings set purchaser and to any succeeding owner of the real forth in the Company’s catalogs and bulletins, provided... - Page 28 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.