Infinity ICS Furnace Manual

The Infinity ICS Furnace is a high-efficiency gas furnace system with advanced modulating technology, variable-speed blower motor, integrated smart controls, diagnostic LED indicators, and compatibility with Infinity System controls. Below are key sections for safety, features, installation, setup, operation, maintenance, and troubleshooting.

1. Features at a Glance 2. Installation 3. First-Time Setup 4. Specifications 5. Controls and Settings 6. System Configuration 7. Operation Modes 8. Maintenance Procedures 9. Safety Features 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: Modulating gas valve, variable-speed ECM blower motor, smart control board, diagnostic LED, pressure switches, flame sensor, and ignition system.

FeatureDescription
Modulating Gas ValvePrecise gas flow control for consistent temperature
Variable-Speed ECM BlowerEnergy-efficient motor with quiet operation
Smart Control BoardAdvanced diagnostics and system monitoring
Diagnostic LEDVisual fault code display for troubleshooting
Pressure SwitchesSafety verification of proper venting
Flame SensorEnsures proper ignition and flame detection
Hot Surface IgniterReliable electronic ignition system
Multi-Position InstallationUpflow, downflow, horizontal left/right configurations
AFUE RatingUp to 98% annual fuel utilization efficiency
Infinity System CompatibleWorks with advanced thermostat controls

Installation

Unpack and inspect all components. Ensure proper clearances and venting requirements.

  1. Position furnace: Place in approved location with proper clearances to combustibles.
  2. Install venting: Use approved PVC piping for intake and exhaust.
  3. Connect gas supply: Use black iron pipe with proper thread sealant.
  4. Electrical connections: Connect 120V power and thermostat wiring.
  5. Ductwork: Connect supply and return ducts securely.

WARNING! Installation must be performed by qualified HVAC technician. Gas connections require leak testing.

First-Time Setup

Power on furnace; follow startup sequence and system configuration.

  1. Power up: Turn on electrical power and gas supply.
  2. System check: Control board performs self-diagnostic test.
  3. Thermostat configuration: Set up Infinity control or compatible thermostat.
  4. Blower settings: Configure CFM and airflow parameters.
  5. Gas pressure: Verify and adjust manifold pressure if needed.

CAUTION! Ensure proper ventilation and combustion air supply before operation.

Specifications

Controls and Settings

Access system settings via control board or Infinity thermostat.

Control Board: Diagnostic LED, DIP switches, service test mode, reset button.

Thermostat Settings: Temperature setpoints, fan control (auto/on), system mode (heat/cool/off), advanced scheduling, humidity control, air quality settings. Service Settings: Blower speeds, gas heat stages, timing parameters, fault code history.

System Configuration

Configure furnace for specific installation requirements and accessories.

  1. Set furnace orientation: Upflow, downflow, or horizontal.
  2. Configure blower speeds: Heating, cooling, continuous fan.
  3. Set gas type: Natural gas or propane conversion.
  4. Configure accessories: Humidifier, air cleaner, UV lights.
  5. Set communication: Infinity system integration.

Tip: Document all settings for future reference and service.

Operation Modes

Multiple operating modes for optimal comfort and efficiency.

  1. Heating Mode: Modulating heat output from 40% to 100% capacity.
  2. Continuous Fan: Constant air circulation for improved air quality.
  3. Smart Recovery: Learns home characteristics for precise temperature control.
  4. Dehumidification: Enhanced moisture removal in cooling mode.
  5. Service Mode: Diagnostic and testing functions for technicians.

WARNING! Do not attempt to service gas or electrical components without proper training.

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 controls.
  4. Blower maintenance: Clean blower wheel and housing annually.
  5. Drain system: Check and clean condensate drain lines.

CAUTION! Turn off electrical power before performing any maintenance.

Safety Features

Multiple safety systems protect against hazardous conditions.

Safety FeatureFunction
Flame Rollout SwitchesDetects improper burner combustion
Pressure SwitchesVerifies proper venting operation
High Limit SwitchesPrevents overheating conditions
Flame SensorEnsures gas valve closes if no flame
Ignition ControlSafe trial-for-ignition sequence

Regulatory Information

UL certified; meets ANSI Z21.47 standards for gas-fired central furnaces. CSA certified for Canadian installations. Complies with Department of Energy efficiency standards. For technical support, contact authorized service provider or manufacturer support line. Keep this manual for future reference.

Troubleshooting

SymptomPossible CauseCorrective Action
Furnace won't startPower, thermostat, safety lockoutCheck power supply; verify thermostat settings; reset if locked out.
No heatGas supply, ignition, filterVerify gas valve on; check for ignition attempts; replace dirty filter.
Short cyclingDirty filter, airflow, overheatingReplace filter; check for blocked vents; verify proper airflow.
Blower won't runMotor, capacitor, control boardCheck for power to motor; test capacitor; verify control signals.
Error codes displayedVarious system faultsReference fault code chart in service manual; call for service if needed.

Reset: Power cycle furnace if locked out; check diagnostic LED for codes.

Service: Contact qualified HVAC technician for all gas and electrical repairs.

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