Hybrid 1.5 Ton 16 SEER2 80% AFUE 40,000 BTU Furnace and High Efficiency Low NOx Heat Pump System | Inverter - R454B - Downflow/Horizontal
With tons of extra features and a great price, an ACiQ furnace and High Efficiency Heat Pump system is the perfect choice for all of your heating and cooling needs for...
With tons of extra features and a great price, an ACiQ furnace and High Efficiency Heat Pump system is the perfect choice for all of your heating and cooling needs for any time of year. All ACiQ models come with a 10 year parts warranty.
OVERVIEW
The AQ-GD9T800403AX ACiQ gas furnace features high-quality construction and efficient operation at a great value. The AQ-GD9T800403AX two-stage, 9-speed furnace utilizes ACiQ's superior heat exchanger design to provide efficient, reliable heating to your home. If you're looking to cut your energy bills and improve your comfort without breaking the bank, your search stops with the ACiQ AQ-GD9T800403AX.
QUICK FACTS
- This furnace is ideal to heat a small house (depending on climate)
- 40,000 BTU 80% efficient natural gas furnace
- Requires metal flue venting
- Can be used in the downflow or horizontal orientation
- Can be converted to an LP furnace with a conversion kit (sold separately)
- Innovative design for electrical efficiency, safety, and lower sound output
40,000 BTU
The AQ-GD9T800403AX ACiQ gas furnace is 40,000 BTU's. This BTU count is a measure of the input of the furnace per hour, while the output of this furnace is 32,000 BTU's (40,000 X 80% AFUE) per hour. In ideal climate conditions, this 40,000 BTU furnace is usually used to heat a medium house.
80% Efficiency Rating
The AQ-GD9T800403AX ACiQ gas furnace is 80% efficient, and the standard furnace efficiency on the market today. This means that 80% of the gas going into the furnace is used to heat your home and the remaining 20% is lost out of the flue venting. Please note that all 80% furnaces must be vented using metal flue venting, while anything higher than 90% efficient must be vented using plastic/PVC venting.
Please note that this furnace does comply with California Low NOx regulations.
Two Stage Furnace
The AQ-GD9T800403AX ACiQ gas furnace is a two stage furnace that has two heating outputs on the burner: full output on colder winter days and a lower output for milder days that the furnace doesn't have to run quite as much. Two stage furnaces allow for a more even heat distribution, as the furnace will only kick on the higher stage if the indoor temperature is more than a few degrees away from the desired temperature. Since the lower stage will be used more often, the AQ-GD9T800403AX will run quieter than a single stage system. While the majority of the benefits of a two stage feature on a furnace are comfort based, the efficiency of the furnace is slightly higher due to it burning less fuel at its lower stage.
Natural Gas or LP Furnace
From the factory, the AQ-GD9T800403AX runs on natural gas. However all ACiQ gas furnaces can be converted to propane using the furnace's corresponding LP conversion kit, an optional accessory at an additional cost that consists of a replacement set of orifices and springs.
9-Speed ECM Blower Motor
Instead of the last generation PSC blower motor, the AQ-GD9T800403AX utilizes a 9-speed ECM motor, which uses less power and provides smarter air circulation. All of this causes an overall increase in the electrical efficiency of your furnace, which saves you money.
ACiQ Furnace Warranty
With installation that follows your state and local codes and with online registration, all ACiQ furnaces come with a 10-year parts and lifetime heat exchanger warranty through the manufacturer.
Durable Hot Surface Igniter
The hot surface igniter on modern ACiQ furnaces are more durable than previous designs, decreasing related issues and lowering maintenance costs. These hot surface ignitors are also more efficient than standing pilot and older HSI designs, saving you even more money.
Self-Diagnostic Control Board
The ACiQ brand has improved technology from years of production experience, allowing for a long-lasting product that rarely has any issues. However, if something does go wrong on the furnace, the control board has a set of sensors that allow it to diagnose basic issues, allowing for easy troubleshooting and to notify the owner if basic maintenance or warranty work is recommended. This increases the overall safety of the unit, for the furnace itself and the occupants of the home where it is installed.
Heavy Gauge Steel Cabinet
The heavy-gauge steel cabinet on new ACiQ furnaces provide adequate protection to the internal mechanisms of the unit. The cabinet is also more air-tight than previous models, allowing for a quiet, more economical unit due to losing less heat and preventing more sound from exiting the unit.
Ease of Installation
The value of modern ACiQ furnaces doesn't end at efficiency. Today's ACiQ furnaces feature many different connection options to reduce installation. The GM9C800403AN model has a more universal design, which consists of its ability to be installed in both an downflow or horizontal configuration. This allows for an easier installation in more locations, from your attic to your basement. The furnace also comes with color-coded low-voltage terminals that allow for a shorter and easier installation time, which decreases installation costs.

Same Quality, Better Value
Our private-label heating and cooling systems are built to the same rigorous standards as the industry’s leading brands — but deliver better value for your investment. Each unit features durable components, proven technology, and the performance you expect from a top-tier HVAC manufacturer. With fewer middlemen and lower overhead, you get exceptional comfort and reliability at a value that simply can’t be beat.
Backed by Trusted Expertise
Every system is backed by HVACDirect.com’s decades of industry experience and support. We work directly with the manufacturer to ensure every unit meets our strict performance and reliability standards. Plus, our U.S.-based support team is here to help you choose, install, and maintain your system with confidence — giving you peace of mind long after your purchase.


Built for Lasting Comfort
Designed for dependable year-round performance, these systems deliver quiet operation, consistent temperatures, and efficient energy use — all while keeping maintenance simple. With high-quality materials and precision engineering, each system is made to provide lasting comfort and lower long-term costs for your home or business.
OVERVIEW
Inverter - The ACiQ-18-EHPD 1.5 ton central inverter heat pump utilizes inverter technology to convert AC power to DC, allowing the compressor to adjust its speed. This enables the condenser to modify its BTU output based on the current demand, providing efficient and adaptable performance throughout varying weather conditions.
Learning Condenser - Equipped with advanced sensors, this condenser monitors indoor and outdoor air temperature, duct pressure, refrigerant temperature, and overall performance. During the initial startup, it enters a learning mode, optimizing future operations for maximum efficiency by collecting and storing data.
Adaptive Sizing - With its self-adjusting inverter design, the ACiQ-18-EHPD can be sized based on your heating needs. Standard heat pumps may cause discomfort during summer when sized for heat, but this unit automatically adjusts to function like a smaller unit, ensuring ideal cooling performance without excess humidity.
QUICK FACTS
- Variable output based on demand: 12,000-18,000 BTU for cooling, 12,000-18,000 BTU for heating
- R454B refrigerant
- Inverter heat pump system for ducted applications
- Efficient cooling from -13°F to 122°F outdoor temperatures
- Reliable heating from -13°F to 75°F outdoor temperatures
- Durable gold fin condenser coil coating for longevity
- Quiet operation, even under high workloads
1.5 Ton, 18.8 SEER2
Boasting an efficiency rating of 18.8 SEER2, the ACiQ-18-EHPD provides versatile comfort across a range of climates by providing reliable comfort with a variable output that eliminates short cycling for lasting efficiency. Use our sizing calculator (found HERE) to determine the demand for your home.

Quality Construction
State-of-the-Art manufacturing is behind every ACiQ product, resulting in quiet, effective operation over a long service life. Most models have low ambient heating and cooling.
Highest Efficiency
ACiQ saves you money up front, but also over time by reducing energy bills. Every ACiQ condenser features a variable inverter twin rotary compressor, lowering wear and increasing performance. Compare specs against other brands in the same price category, and you will agree, ACiQ is the best value.


Longer life, longer warranty
Intelligent design goes into every element of ACiQ’s manufacturing ensuring flawless performance for years. Low friction, variable inverter twin rotary compressors give bulletproof reliability. Register equipment at ACiQ.com to extend warranty protection to 7 years parts, 12 years compressor.
OVERVIEW
ACIQ takes pride in its ability to provide a high-quality system, including all system components.The ACIQ-24-ACL-14-B multi-positional A-coil stands out as a superior choice for various applications, ensuring optimal unit efficiency through its factory-integrated TXV kit, maximizing energy optimization. With its outstanding performance features and versatile orientation options, this coil becomes the ultimate solution for achieving unmatched comfort in your home.
QUICK FACTS
- 2 ton multi-positional evaporator coil
- Works in almost any upflow, downflow, or horizontal system setup
- Compatible with both AC-only and heat pump condensers
- Factory-installed TXV kit for enhanced energy optimization
- Sturdy and compact design
2 Tons
The ACIQ-24-ACL-14-B is rated for up to 2 tons of heating and cooling. With its ability to be installed with either an AC-only condenser or a heat pump condenser, this unit is ideal for many applications. In some packages, this coil will be larger than its paired condenser, which will increase the overall efficiency of the entire unit, but the coil should never be smaller than its paired condenser. Please note that this item cannot operate independently from a compatible condenser and blower or furnace, each available at an additional cost.
Line sets are the copper lines which connect an outdoor condensing unit/heat pump to an inside air handler or evaporator coil. Line sets are available in different lengths and diameters to fit most applications.
Ensure efficient refrigerant flow and optimal HVAC performance with this 50-foot insulated line set. Designed for seamless connection between an outdoor condensing unit or heat pump and an indoor air handler or evaporator coil, this line set offers durability, flexibility, and superior thermal protection for long-lasting operation.
Key Features:
✔ Premium Copper Tubing: 3/8" liquid line (LL) and 3/4" suction line (SL) for efficient refrigerant transfer.
✔ Pre-Insulated for Efficiency: 3/8" thick insulation minimizes energy loss and condensation buildup.
✔ Versatile Application: Compatible with heat pumps and conventional split systems.
✔ Easy Installation: Flexible and durable copper tubing allows for smooth routing and connection.
✔ Extended 50-Foot Length: Ideal for larger residential and light commercial HVAC installations.
Upgrade your HVAC system with this high-quality insulated line set, engineered for reliability, efficiency, and ease of installation.
This wall mount bracket is perfect for outdoor condensers. The length of the wall bracket arms are 30" long. The condensing unit is mounted onto the L-shaped brackets and fastened using bolts and anti-vibration washers (not included with brackets).
Features:
- Steel: 10 GA
- Powder-coated grey Finish
- Load rating: 600 lbs per pair
- Holes will accommodate anchors for installation
- Warranty: 1 year
- ACB line of wall brackets are approved by the Florida Building Commission and are High Velocity Hurricane Zone (HVHZ) approved. (See product certification documentation for complete details.)
No Return Policy
All sales of this product are final and are non-refundable.
Ensure a professional and secure installation for your condenser with this comprehensive installation kit. Designed to provide all the essential components needed for a smooth setup, this kit helps protect your system while ensuring proper electrical and refrigerant connections.
Key Features:
✔ All-in-One Kit: Includes key accessories for a professional-grade installation.
✔ Enhanced System Protection: Features a surge protector and disconnect safety switch for added safety.
✔ Reliable Electrical Connections: Comes with a whip and charging adapter to ensure proper power supply.
✔ Secure Wall Penetration: Telescoping wall sleeve protects and stabilizes refrigerant and electrical lines.
✔ HVAC Professional Recommended: Ideal for new installations and system replacements.
What’s Included:
- 1/2" x 6' Electrical Whip – SKU: 84136
- 60A Non-Fused Disconnect – SKU: 83335
- Surge Protector – SKU: ICM517
- CPS Charging Adapter – SKU: 87-AD87
- Telescoping Wall Sleeve – SKU: NFP-75
Equip your condenser with everything needed for a safe, durable, and professional installation. Order your Condenser Installation Kit today!