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Comfortmaker Gas furnace G80CSU Ion™ 80 Ultra Low NOx Gas Furnace

Comfortmaker Residential HVAC Gas furnace Repair, maintenance, and replacement planning
Comfortmaker G80CSU Ion™ 80 Ultra Low NOx Gas Furnace product image

Technical Specifications

Product Specs

  • Brand: Comfortmaker
  • Official model: G80CSU
  • Official product name: Ion™ 80 Ultra Low NOx Gas Furnace
  • Product category: gas-furnaces
  • Series: Premium
  • Efficiency Rating = 80% AFUE
  • Operation = Single-Stage Operation
  • Enhanced home comfort levels
  • Communicating Capability
  • If compressor, coil or heat exchanger fails due to defect during the applicable No Hassle Replacement limited warranty time period, a one-time replacement with a comparable unit will be provided.
  • Timely registration required for lifetime limited heat exchanger warranty. Limited warranty period is 20 years for heat exchanger if not registered within 90 days of installation. Jurisdictions where warranty benefits cannot be conditioned on registration will receive the registered limited warranty periods. Please see warranty certificate for furt
  • Quiet performance
  • Variable-speed, constant airflow (VCA) ECM blower motor and single-stage gas valve also provide enhanced levels of temperature control and comfort
  • Dual fuel capable with a compatible heat pump and thermostat for energy-saving heating performance
  • Fully insulated cabinet helps keep the heat moving to your ductwork
  • Air purifier and humidifier compatible
  • Wi-Fi® enabled remote access with the Ion™ Black System Control ±
  • 5-Year No Hassle Replacement Limited Warranty™ *
  • 10-Year Parts Limited Warranty upon timely registration +
  • Lifetime Heat Exchanger Limited Warranty upon timely registration ‡
  • High efficiency variable-speed, constant airflow (VCA) ECM blower motor
  • Variable-speed induced draft combustion motor
  • Single-stage gas valve
  • Stainless steel primary heat exchanger
  • Reliable direct gas ignition with silicon nitride ignitor
  • High temperature limit control designed to prevent overheating
  • Solid, pre-painted steel cabinet with tight fit door latch system
  • Sound-reducing features: fully insulated cabinet with soft mounted blower and inducer motor
  • 4 Way Multipoise
  • Official source: Comfortmaker product page
  • Model or series: G80CSU Ion™ 80 Ultra Low NOx Gas Furnace
  • Equipment type: Gas furnace
  • Product group: Residential HVAC
  • System role: Forced-air heating appliance for a ducted HVAC system
  • Application: Residential, light-commercial, or managed-property comfort applications
  • Compatibility check: Verify fuel type, venting, electrical requirements, capacity, controls, and installation clearances.
  • Verified source: comfortmaker.com

Useful troubleshooting details

  • Confirm the furnace or packaged heating model, serial number, gas type, venting or condensate setup, filter size, thermostat, and paired cooling equipment.
  • Share no-heat, ignition trouble, lockout or error codes, pressure-switch concerns, blower issues, short cycling, venting, condensate, or unusual noise.
  • For replacement planning, note whether the project is like-for-like replacement, dual-fuel planning, or conversion to a heat pump.

Service planning

How GreenFlow handles G80CSU Ion™ 80 Ultra Low NOx Gas Furnace requests

1

Identify the equipment

Confirm the model or series name, serial number if available, photos, and whether the unit is roof, exterior, basement, or mechanical-room equipment.

2

Describe the service issue

Share no heat, no cooling, weak airflow, error codes, alarms, leaks, noise, control problems, or comfort complaints.

3

Review access and history

Include access notes, tenant or business-hour constraints, filter status, recent repairs, and maintenance records when available.

4

Plan the next step

GreenFlow can route the request for diagnostics, repair planning, maintenance, replacement scope, or related system upgrades.

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