395CAV036055 Furnace Manual

The 395CAV036055 is a high-efficiency gas furnace with advanced heating capabilities, electronic ignition system, variable-speed blower motor, built-in safety controls, diagnostic LED indicators, and compatibility with standard thermostat systems. Designed for residential use with natural gas or propane, featuring AFUE ratings up to 96%, multi-speed operation, and easy maintenance access. Below are key sections for safety, features, installation, setup, operation, and troubleshooting.

Features at a Glance

Key components: Heat exchanger, blower assembly, gas valve, ignition system, control board, filter access, venting system, pressure switches.

Installation

Unpack and inspect all components. Ensure proper clearances and level installation surface.

1. Position furnace: Place on stable, level surface with proper clearances (refer to manual).
2. Connect gas line: Use approved gas piping materials; pressure test for leaks.
3. Install venting: Use PVC piping for intake and exhaust; maintain proper slope.
4. Electrical connections: Connect 120V power and thermostat wiring.
5. Install filter: Insert proper size filter in filter rack.

WARNING! Gas appliances require professional installation. Follow all local codes. Ensure proper ventilation and combustion air supply.

First-Time Setup

Power on furnace; follow startup sequence.

1. Verify gas supply: Ensure gas valve is open and pressure is correct.
2. Check electrical: Confirm 120V power and thermostat connections.
3. Startup sequence: Control board will initiate self-test and ignition sequence.
4. Adjust blower speeds: Configure cooling and heating speeds as needed.
5. Test operation: Verify proper heating cycle and temperature rise.

CAUTION! Only qualified technicians should perform initial setup and adjustments.

Specifications

• Model: 395CAV036055
• Input Capacity: 60,000 BTU/hr
• AFUE Rating: Up to 96%
• Gas Type: Natural gas or propane (conversion kit required)
• Blower Motor: Variable-speed ECM
• Electrical: 120V, 60Hz, 15A circuit
• Venting: 2" PVC pipe (intake and exhaust)
• Dimensions: Standard upflow configuration
• Operating Temp Range: -30°F to 120°F ambient
• Warranty: Limited lifetime heat exchanger, 10 years parts

Controls and Settings

Access control board via front panel removal. LED status light indicates system operation and fault codes.

Thermostat Connections: R (24V), W (Heat), G (Fan), C (Common), Y (Cooling)

Control Board: Diagnostic LED (flash codes for troubleshooting), DIP switches for configuration, service test mode. Blower Settings: Adjust heating and cooling speeds via DIP switches or board settings. Gas Valve: Electronic modulation with pressure regulation. Safety Controls: Limit switches, pressure switches, flame sensor, rollout switches.

Connecting Components

Gas line: 1/2" black iron pipe. Electrical: 120V power, thermostat wiring. Venting: 2" PVC for intake and exhaust.

1. Turn off power and gas supply before making connections.
2. Gas piping: Use pipe dope or Teflon tape on threaded connections.
3. Electrical: Follow wiring diagram for proper connections.
4. Venting: Maintain 1/4" per foot slope toward furnace.
5. Condensate drain: Connect to proper drainage system.

Tip: Always pressure test gas lines and check for leaks with soap solution.

Operating Procedures

Normal operation controlled by thermostat. Manual operation available via control board.

1. Thermostat call: Set thermostat to desired temperature above room temp.
2. Ignition sequence: Inducer motor starts, pressure switch verifies, igniter heats, gas valve opens.
3. Flame verification: Flame sensor confirms ignition, main burner operates.
4. Blower operation: Blower starts after heat exchanger warm-up delay.
5. Cycle completion: Thermostat satisfied, gas valve closes, blower runs for post-purge.
6. Service mode: Access via control board for testing components.
7. Fan only operation: Set thermostat to FAN ON position.

WARNING! Do not attempt to manually override safety controls. Contact qualified technician for service.

Safety Features

Multiple safety systems: Flame rollout switches, high limit switches, pressure switches, flame sensor, condensate overflow switch. All safety devices must reset automatically or manually after fault condition clears.

Maintenance & Cleaning

Turn off power before servicing. Regular maintenance includes filter changes, burner inspection, and heat exchanger cleaning.

Monthly: Check and replace air filter as needed

Annual: Professional inspection and cleaning of burners, heat exchanger, and venting system

CAUTION! Never operate without filter. Keep combustion air intake clear of debris.

Regulatory Information

ANSI Z21.47: Certified for natural gas and propane operation. UL listed. Meets DOE efficiency standards. CSA design certified. For support, contact manufacturer technical service or authorized dealers. Installation must comply with National Fuel Gas Code NFPA 54 and local building codes.

Troubleshooting

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

Service: Contact qualified HVAC technician for all repairs beyond basic troubleshooting.