American Standard HVAC Odyssey TTA3004 C Manual

The American Standard Odyssey TTA3004 C is a high-efficiency, single-stage, 3-ton air conditioning condenser unit designed for residential use. It features a scroll compressor, durable corrosion-resistant coating, and is compatible with a wide range of American Standard indoor units. Below are key sections for safety, features, installation, setup, operation, maintenance, and troubleshooting.

Features at a Glance

Key components: Durable outdoor condenser cabinet, Scroll compressor, High and low pressure service valves, Fan motor, Coil, Electrical connection box.

Installation

Unpack and inspect contents. Unit must be installed by a qualified HVAC technician in accordance with all local codes and ordinances.

1. Select Location: Choose a level, stable pad away from obstructions, windows, and vegetation for proper airflow and service access.
2. Place Unit: Set on a concrete pad or approved condenser pad. Ensure unit is level.
3. Connect Refrigerant Lines: Braze copper lines from indoor unit to service valves. Use nitrogen purge to prevent oxidation.
4. Connect Electrical: Run appropriate gauge wire from disconnect box to unit's connection panel. Follow wiring diagram precisely.
5. Connect Condensate Drain: Ensure indoor unit drain line is properly installed and unobstructed.

WARNING! Installation involves high voltage and refrigerant under pressure. Only trained, certified professionals should perform installation. Failure to follow codes can result in injury, property damage, or unit failure.

First-Time Setup & Startup

After installation, the technician must perform a complete system startup and check.

1. Leak Check & Evacuation: Pressure test with nitrogen, then evacuate system to below 500 microns to remove moisture and non-condensables.
2. Charge Refrigerant: Weigh in the correct amount of R-410A as specified on the unit rating plate. Do not use pressure to charge.
3. Electrical Check: Verify correct voltage at unit. Check amp draw of compressor and fan against specifications.
4. System Operation Check: Start system. Check temperature drop across evaporator coil (typically 15-20°F). Verify correct superheat and subcooling.
5. Final Inspection: Ensure all access panels are secure, area is clear, and homeowner is instructed on basic operation and filter maintenance.

CAUTION! Never start the compressor without the fan motor running. Ensure all electrical connections are tight and correct before applying power.

Specifications

• Model: TTA3004 C
• Cooling Capacity: 36,000 BTU/h (3 Tons)
• SEER Rating: Up to 16 SEER (when matched with compatible indoor unit)
• Refrigerant: R-410A
• Electrical Data: 208/230V, 1 Phase, 60 Hz. Minimum Circuit Ampacity: 18.0, Maximum Overcurrent Protection: 25A.
• Operating Ambient Temp Range: 55°F to 115°F
• Sound Level: 74 dB(A) (at 3 ft)
• Liquid Line Connection: 3/8" SAE Flare
• Suction Line Connection: 3/4" SAE Flare
• Net Weight: 168 lbs
• Shipping Weight: 180 lbs

Controls and Operation

Primary control is via the indoor thermostat. The outdoor unit responds to calls for cooling from the thermostat.

Typical Cooling Cycle:

1. Thermostat senses temperature above set point.
2. Indoor blower is energized.
3. After a short delay, the outdoor condenser fan and compressor are energized.
4. System runs until thermostat set point is satisfied, then shuts off in reverse order.

Thermostat Settings: Homeowner should set thermostat to desired temperature (e.g., 78°F for cooling). Use "AUTO" fan setting for efficiency. The "ON" fan setting runs the blower continuously.

Safety Controls (Automatic): High-pressure switch, low-pressure switch, compressor internal overload, and time-delay relay prevent damage under adverse conditions.

Connecting to Indoor Unit

This unit is designed for split-system operation with a matching indoor coil (evaporator) and air handler or furnace.

1. Match Systems: Verify indoor unit is AHRI-certified to match the TTA3004 C for rated efficiency.
2. Refrigerant Lines: Connect using clean, dehydrated, correctly sized copper tubing. Insulate suction line.
3. Electrical Control: Connect low-voltage (24V) control wires from indoor unit to the condenser's contactor coil. Typically requires a "Y" (cooling) and "C" (common) wire.
4. Condensate Management: Ensure indoor coil drain pan and line are properly installed to handle condensation.

Tip: The maximum allowable line set length and vertical rise are specified in the full installation guide. Exceeding these can reduce capacity and efficiency.

Maintenance Procedures

Homeowner (Regular):

1. Keep unit clear of leaves, grass clippings, snow, and debris (maintain 2-foot clearance).
2. Change or clean indoor air filter monthly during peak season.
3. Ensure shrubs and plants are trimmed back from the unit.

Professional (Annual): A qualified technician should perform:

1. Inspect electrical connections and tighten if necessary.
2. Check refrigerant charge and system pressures.
3. Clean condenser coil with a fin comb and gentle water spray (from inside out).
4. Check fan motor and blades for wear and balance.
5. Inspect contactor for pitting and operation.
6. Check capacitor(s) for proper microfarad rating.
7. Verify proper condensate drain operation.

Diagnostics & Alerts

Most system faults will cause the unit to stop running. The indoor thermostat may display an error code or flash its indicator light. Common issues:

• No Cooling: Check thermostat setting, circuit breaker, and indoor filter. If these are correct, call for service.
• Unit Cycles On/Off Rapidly: Likely a refrigerant issue (overcharge, undercharge, restriction) or dirty condenser coil. Turn system off and call for service.
• Ice on Refrigerant Lines or Indoor Coil: Indicates low airflow (dirty filter, blocked return) or low refrigerant. Turn system to FAN only to thaw and call for service.

Note: This unit does not have onboard diagnostic LEDs. Diagnosis requires manifold gauges and a multimeter.

Care & Cleaning

Condenser Coil: Turn off power at the disconnect. Gently rinse coil fins with a garden hose from the inside of the unit outward to push debris out. Do not use a pressure washer. Straighten bent fins with a fin comb.

Exterior Cabinet: Wipe with a damp cloth. Do not use harsh chemicals or abrasive cleaners.

CAUTION! Always disconnect electrical power before performing any cleaning or maintenance. Do not spray water directly into the electrical compartment or fan motor.

Regulatory Information

This product complies with applicable U.S. safety and performance standards. It contains refrigerant R-410A. Federal law requires that the refrigerant be recovered during service or at disposal by an EPA-certified technician. The compressor oil is POE (Polyolester). For warranty service, contact an authorized American Standard dealer. Registration is required for full warranty benefits. For support, visit www.americanstandardair.com or contact American Standard Customer Care.

Troubleshooting

Important: Most internal repairs require a certified HVAC technician. Do not attempt to repair refrigerant circuit or major electrical components.

Service: Contact an authorized American Standard dealer. For dealer location or product information: www.americanstandardair.com