American Standard HVAC Odyssey TTA1204 A Manual

The American Standard Odyssey TTA1204 A is a high-efficiency, split-system air conditioner designed for residential and light commercial applications. It features a scroll compressor, durable corrosion-resistant cabinet, and operates with R-410A refrigerant. Below are key sections covering safety, features, installation, operation, maintenance, and troubleshooting.

Features at a Glance

Key components: Outdoor condensing unit with scroll compressor, corrosion-resistant cabinet, high and low pressure service ports, liquid line filter drier, and fan motor.

Installation Guidelines

Unpack and inspect unit for shipping damage. Select a level, stable location with adequate clearance.

1. Position unit: Place on a concrete pad or approved mounting system with minimum 24-inch clearance on all sides.
2. Connect refrigerant lines: Braze lines using nitrogen purge to prevent oxidation.
3. Connect electrical: Run dedicated circuit from main panel to disconnect box near unit.
4. Connect to indoor unit: Connect suction and liquid lines to matching indoor coil.
5. Evacuate and charge: Evacuate system to 500 microns, charge with R-410A per nameplate data.

WARNING! Installation must be performed by a qualified HVAC technician. Improper installation can cause injury or equipment damage.

First-Time Startup

After installation, perform initial startup procedure.

1. Verify electrical: Ensure all connections are tight and voltage matches nameplate.
2. Check refrigerant charge: Use manifold gauges to verify proper charge in cooling mode.
3. Start system: Turn on disconnect, set thermostat to cool mode below room temperature.
4. Monitor operation: Check for proper airflow, listen for unusual noises, verify temperature drop.
5. Test safety controls: Verify high and low pressure switches function properly.

CAUTION! Do not operate without proper refrigerant charge. Keep hands clear of moving fan blades.

Specifications

• Model: TTA1204 A
• Cooling Capacity: 2-4 tons (varies by configuration)
• Refrigerant: R-410A
• Electrical: 208/230V, 1 phase, 60Hz
• SEER Rating: Up to 16 SEER
• Sound Level: As low as 72 dB
• Operating Ambient: 55°F to 115°F
• Compressor Type: Scroll
• Fan Motor: Permanent split capacitor
• Warranty: 10-year limited on compressor, 5-year on parts

Controls and Operation

Unit operation is controlled by indoor thermostat. No user controls on outdoor unit.

Thermostat Functions: COOL, HEAT (with compatible furnace), FAN (ON/AUTO), TEMPERATURE SETTING, SYSTEM ON/OFF.

System Operation: When thermostat calls for cooling, contactor engages compressor and fan motor. Compressor pumps refrigerant through system, absorbing heat indoors and rejecting it outdoors. Fan draws air through condenser coil for heat rejection. System cycles off when set temperature is reached.

Connecting to Thermostat

Connect low-voltage wiring between indoor air handler/furnace and outdoor unit.

1. Turn off power at main disconnect and indoor unit.
2. Run 18-gauge thermostat cable between indoor and outdoor units.
3. Connect Y (cooling), C (common), and G (fan) terminals at both units.
4. For heat pump models, additional connections required (O, B, W).
5. Secure connections with wire nuts, protect from weather.

Tip: Use color-coded wires for easy identification. Follow wiring diagram provided with unit.

Maintenance Procedures

Regular maintenance ensures optimal performance and longevity.

1. Clean condenser coil: Gently brush or vacuum coil fins annually.
2. Clear debris: Remove leaves, grass, and debris from around unit.
3. Check electrical: Inspect connections for tightness and corrosion.
4. Verify refrigerant charge: Have technician check charge each season.
5. Lubricate fan motor: Most models have permanently lubricated bearings.
6. Check drain line: Ensure condensate drain is clear (indoor unit).
7. Inspect insulation: Check refrigerant line insulation for damage.

WARNING! Always disconnect power before performing any maintenance. Coil fins are sharp.

Safety Features

High Pressure Switch: Cuts power to compressor if discharge pressure exceeds safe limit. Low Pressure Switch: Protects compressor from operating with insufficient refrigerant. Time Delay: Prevents short cycling (typically 5-minute delay). Compressor Overload: Internal protection against overheating. Fan Delay: Continues fan operation after compressor shuts off to improve efficiency.

Care & Cleaning

Keep unit clear of vegetation and debris. Wash condenser coil with water from inside out (power off). Do not use pressure washer. Clean fan blades carefully. Keep electrical components dry.

CAUTION! Do not bend coil fins. Use fin comb for straightening if necessary. Never operate with dirty or blocked coil.

Regulatory Information

UL listed. Meets DOE efficiency standards. EPA refrigerant handling certification required for service. Contains R-410A refrigerant which must be recovered per EPA Section 608. Manufactured to comply with ASHRAE standards. For technical support, contact American Standard at 1-800-926-9667 or visit www.americanstandardair.com.

Troubleshooting

Reset: Turn off at thermostat, wait 5 minutes, turn back on. If problem persists, call technician.

Service: 1-800-926-9667; www.americanstandardair.com