ATS 3210 Furnace Manual

The ATS 3210 is a high-efficiency residential furnace with advanced temperature control, multiple heating stages, smart thermostat compatibility, energy-saving modes, safety shutoff features, and easy maintenance access. Designed for reliable performance in various climate conditions with 95% AFUE rating, electronic ignition, variable-speed blower, and comprehensive diagnostic systems. Below are key sections for safety, features, installation, operation, maintenance, and troubleshooting.

Features at a Glance

Key components: High-efficiency heat exchanger, variable-speed blower motor, electronic ignition system, smart thermostat interface, safety sensors, and diagnostic LED indicators.

Feature	Description
Heat Exchanger	Stainless steel construction for 95% AFUE efficiency
Blower Motor	Variable-speed ECM for quiet operation and energy savings
Ignition System	Electronic hot surface ignition
Thermostat Interface	Compatible with most smart thermostats
Safety Sensors	Flame rollout, limit switch, pressure switch
Diagnostic LED	Flashing codes for troubleshooting
Gas Valve	Modulating for precise temperature control
Air Filter	Standard 16x25x1 inch filter slot
Vent System	PVC pipe compatible for sidewall or roof venting
Power Requirements	120V AC, 60Hz standard household current

Installation

Unpack and inspect all components. Ensure proper clearances and ventilation.

1. Position furnace: Place on level surface with minimum clearances as specified.
2. Connect gas line: Use approved pipe thread compound; pressure test for leaks.
3. Install venting: Use PVC pipe per local codes; maintain proper slope.
4. Electrical connections: Connect to 120V power; install disconnect switch if required.
5. Connect thermostat: Use 18-gauge thermostat wire.
6. Install air filter: Insert clean filter before operation.

WARNING! Gas appliances can be dangerous; professional installation recommended. Ensure proper ventilation and follow all local codes.

First-Time Setup

Power on furnace; follow startup sequence.

1. Set thermostat: Install batteries; configure basic settings.
2. Check gas pressure: Verify manifold pressure per specifications.
3. Test ignition: Observe startup sequence; ensure proper flame.
4. Adjust blower speed: Set for optimal airflow and noise levels.
5. Program thermostat: Set schedules and temperature preferences.

CAUTION! Never bypass safety devices. If furnace fails to start, check diagnostic codes before attempting repairs.

Specifications

• Heating Capacity: 60,000-100,000 BTU/h (multiple models)
• Efficiency: 95% AFUE
• Stages: Two-stage heating operation
• Blower: Variable-speed ECM motor
• Ignition: Electronic hot surface
• Gas Type: Natural gas or LP (conversion kit required)
• Voltage: 120V AC, 60Hz
• Filter Size: 16x25x1 inch
• Warranty: 10-year heat exchanger, 5-year parts
• Sound Level: < 65 dB in normal operation

Controls and Settings

Access control board via front panel. Integrated diagnostic system with LED status codes.

Control Board: POWER switch, SYSTEM switch (HEAT/COOL/OFF), FAN switch (AUTO/ON), diagnostic LED.

Temperature Control: Two-stage operation for efficiency and comfort. Blower Control: Variable speed adjusts to heating demands. Safety Features: Automatic shutoff for high temperature, flame failure, pressure issues. Diagnostics: LED flash codes indicate system status and error conditions.

Connecting Thermostat

Compatible with most 24V thermostats including smart models.

1. Turn off power to furnace at disconnect switch.
2. Remove old thermostat and label wires.
3. Connect wires to new thermostat: R (power), W (heat), G (fan), C (common).
4. Mount thermostat on wall away from heat sources and drafts.
5. Restore power and test operation.

Tip: Use thermostat with two-stage capability for optimal performance.

Operating Modes

Multiple operating modes for efficiency and comfort.

1. Heat Mode: Primary heating operation with two-stage capability.
2. Fan Only: Continuous air circulation without heat.
3. Vacation Mode: Reduced temperature setting for energy savings.
4. Smart Recovery: Anticipates temperature needs for consistent comfort.
5. Filter Alert: Reminds when filter needs replacement.

WARNING! Do not operate furnace without proper ventilation. Ensure combustion air openings are unobstructed.

Maintenance Procedures

Regular maintenance ensures optimal performance and longevity.

1. Monthly: Check and replace air filter as needed.
2. Seasonal: Inspect vent system for obstructions.
3. Annual: Professional inspection of heat exchanger, burners, and safety devices.
4. As needed: Clean blower assembly and combustion area.

CAUTION! Turn off power and gas before performing any maintenance. Only qualified technicians should service gas components.

Care & Cleaning

Keep furnace area clean and unobstructed.

Exterior: Wipe with damp cloth. Do not use harsh chemicals. Interior: Vacuum burner area and blower compartment annually. Vent System: Inspect for debris or animal nests regularly.

CAUTION! Never spray liquids into furnace. Keep flammable materials away from unit.

Regulatory Information

UL certified for safety standards. ANSI Z21.47 compliant for gas furnace operation. Meets DOE energy efficiency requirements. Manufactured to ISO 9001 quality standards. For technical support, contact ATS Customer Service at 1-800-555-HEAT or visit www.atsfurnace.com.

Troubleshooting

Symptom	Possible Cause	Corrective Action
Furnace won't start	Power, thermostat, gas	Check power switch; verify thermostat setting; ensure gas valve open.
No heat	Ignition, filter, limit switch	Check diagnostic LED; replace filter; reset limit switch.
Short cycling	Filter, thermostat, airflow	Clean/replace filter; check thermostat location; verify proper airflow.
Blower not working	Power, motor, control board	Check power to blower; test motor; inspect control board.
Unusual noises	Blower, ducts, burners	Clean blower wheel; check ductwork; inspect burner assembly.

Reset: Turn power off for 30 seconds, then restore.

Service: 1-800-555-HEAT; www.atsfurnace.com