American Standard HVAC YCY036G1M Manual

The American Standard YCY036G1M is a high-efficiency residential air conditioning system designed for reliable cooling performance. This split system features a 3-ton capacity, compatibility with R-410A refrigerant, variable-speed compressor technology for energy savings, quiet operation, durable construction, and compatibility with American Standard communicating thermostats for enhanced control. Below are key sections for safety, features, installation, setup, operation, maintenance, and troubleshooting.

Features at a Glance

Key components: Outdoor condensing unit, variable-speed compressor, coil assembly, service valves, electrical connections, and communication interface.

Installation Guidelines

Unit must be installed by a qualified HVAC technician in accordance with all local codes and manufacturer instructions.

1. Site Selection: Choose a level, stable outdoor location with adequate clearance (min 24" on all sides, 48" above). Ensure proper drainage.
2. Mounting: Place on a concrete pad or approved mounting system. Isolate from structure to minimize vibration transmission.
3. Refrigerant Lines: Connect pre-charged, insulated lineset from indoor evaporator coil. Ensure connections are tight and leak-checked.
4. Electrical: Connect power wiring from disconnect to unit terminal block (L1, L2). Connect communication cable if using communicating thermostat.
5. Final Checks: Remove shipping blocks from compressor. Open service valves. Verify all connections are secure.

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

First-Time Startup

After installation, system must be commissioned by the installer.

1. Power On: Turn on power at disconnect and indoor air handler/furnace.
2. Thermostat Setup: If using a communicating thermostat, follow its setup wizard to recognize the outdoor unit.
3. System Check: Set thermostat to COOL mode, temperature below room temp. Unit should start. Listen for normal operation.
4. Performance Verification: Technician should measure superheat/subcooling, check voltage/amperage, and verify airflow from indoor registers.
5. Owner Orientation: Technician should explain basic thermostat operation, filter location, and maintenance schedule.

CAUTION! Do not attempt startup without verifying all electrical and refrigerant connections are complete and correct.

Technical Specifications

• Model: YCY036G1M
• Product Family: AccuComfort™ Variable Speed
• Nominal Cooling Capacity: 36,000 BTU/h (3 Tons)
• Refrigerant Type & Charge: R-410A (Factory pre-charged for 25' lineset)
• Electrical Data: 208/230V, 1 Phase, 60 Hz. Minimum Circuit Ampacity: 19.0. Maximum Overcurrent Protection: 25A.
• Operating Ambient Temperature: 55°F to 115°F (Cooling)
• Sound Rating (dBA): As low as 72 dBA (varies by model)
• Net Weight: Approximately 220 lbs
• Compatible Indoor Units: Refer to American Standard system match guide (e.g., TEM6, TAM7 air handlers; variable-speed furnaces).
• Warranty: Limited 10-year parts warranty upon timely registration. Compressor warranty included.

Controls and Settings

Primary control is via the indoor thermostat. The outdoor unit has an LED status light for diagnostics.

Thermostat Interface: Use a compatible American Standard thermostat (basic or AccuLink). Settings include:

• Mode: COOL, HEAT (with matched furnace/heat pump), OFF, AUTO.
• Temperature Setpoint: Adjust desired cooling temperature.
• Fan: AUTO or ON for continuous circulation.
• Advanced Settings (AccuLink): Scheduling, humidity control, system alerts, filter change reminders.

Outdoor Unit LED: Flashing patterns indicate system status or fault codes. Refer to service manual for code interpretation.

DIP Switches (Internal): Typically set by installer for specific applications (e.g., thermostat type, accessory configuration). Do not adjust.

Connecting to Thermostat

For proper communication and control.

1. Compatible Thermostats: 24V conventional (Y, C, G, R wires) or AccuLink communicating (4-wire dedicated cable).
2. Wiring: Turn OFF power at disconnect and indoor unit. Connect thermostat wires to indoor control board per wiring diagram.
3. Communication Link: For AccuLink, a dedicated 4-wire cable must connect the outdoor unit, indoor unit, and thermostat.
4. Power Up: Restore power. The thermostat should power on and may auto-configure.

Tip: Label wires before disconnecting an old thermostat. Take a picture of the existing wiring.

Operating Modes

The system provides efficient cooling and, when paired with a compatible indoor unit, enhanced dehumidification.

1. Cooling Mode: Set thermostat to COOL and desired temperature. Variable-speed compressor adjusts to match cooling demand precisely.
2. Fan Mode: Set thermostat FAN to ON for continuous airflow without cooling, or AUTO to run only with cooling cycle.
3. Enhanced Dehumidification: With an AccuLink thermostat, select "Climate Control" or similar mode to overcool slightly for greater moisture removal.
4. Shutdown: Set thermostat to OFF. The system will not run.

WARNING! Do not set cooling temperature extremely low (below 68°F) for prolonged periods, as it may cause the coil to freeze.

Maintenance Procedures

Regular maintenance ensures efficiency, longevity, and warranty compliance.

Homeowner Tasks:

• Filter Replacement: Replace indoor air filter every 1-3 months. A clean filter is critical for airflow and efficiency.
• Outdoor Unit: Keep area clear of leaves, grass, snow (at least 24 inches). Gently rinse coil with garden hose (power OFF) if visibly dirty.
• Visual Inspection: Look for signs of damage, refrigerant leaks (oil stains), or pest intrusion.

Professional Service (Annual): A qualified technician should:

• Check refrigerant charge and system pressures.
• Inspect electrical components and connections.
• Clean indoor evaporator coil and condensate drain.
• Check compressor operation and amperage draw.
• Verify thermostat calibration and system sequence.

CAUTION! Never insert objects into outdoor fan. Do not use pressure washers on the coil. Always turn power OFF before any maintenance.

Regulatory Information

This product complies with applicable U.S. safety and performance standards. It contains R-410A refrigerant, which must be recovered by EPA-certified technicians. The compressor contains oil. Unit is designed per UL 1995 and CSA C22.2. For warranty registration and information, visit www.americanstandardair.com. Manufactured for American Standard Heating & Air Conditioning. © [Year] American Standard. All rights reserved.

Troubleshooting

LED Fault Codes: Rapid flashing, specific flash counts, or steady/off patterns indicate specific faults. Refer to service manual or contact technician with code description.

Service: Contact your installing American Standard dealer or find a local contractor at www.americanstandardair.com. For general support, call 1-800-428-4326.