1.5 Ton 16 SEER ACiQ Air Conditioner System




N4A618GKB / FEM4X1800BL



Authorized ACiQ Dealer

AHRI Certified

AHRI Number:201760736

Suggested Retail $1,296.00
Your Low Price $842.00

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1.5 Ton Multi-Positional ACiQ Air Handler


  • 1.5-ton Air Handler
  • Efficient ECM Blower Motor
  • Multi-positional Installation: Upflow, Downflow, and Horizontal
  • Factory-installed TXV Kit for Enhanced Energy Optimization
  • Compatible with AC-only and Heat Pump Condensers
  • Sturdy, Fully Insulated Cabinet

1.5 Tons Air Handler

The ACiQ FEM4X1800BL air handler delivers a powerful output of 1.5 tons. In many applications, this air handler has a higher tonnage than its paired condenser to ensure optimal overall efficiency. Please note that to provide cooling, this unit requires the use of an outdoor condenser. Additionally, it can be used for electric heating as a straight electric furnace or as a backup for a heat pump, which incurs an additional cost for field installation.


ACiQ offers an impressive warranty package for this unit, including a 10-year no-hassle replacement warranty and a 10-year parts warranty. To activate these warranties, proper installation according to your state and local codes is required. Furthermore, a new and certified coil must be installed simultaneously, and the entire system needs to be registered online through the manufacturer. After your purchase, a representative will contact you to gather installation details and assist with product registration.

Installation and Durability

The FEM4X1800BL air handler by ACiQ is designed for versatility, allowing easy installation in upflow, downflow, or horizontal orientations. The unit comes pre-installed with a TXV kit, eliminating the need for additional installation expenses. Its durability is ensured through an exceptionally strong, one-piece outer casing that provides reliable protection. Additionally, the coil is crafted from corrosion-resistant aluminum, enhancing its longevity.

Intelligent Comfort

Experience superior comfort with the FEM4X1800BL air handler, equipped with an efficient ECM blower motor. This motor maintains a stable temperature in your home, ensuring your comfort throughout the day. The control board of the unit automatically communicates with your thermostat, adjusting the blower output to meet your specific needs. With its intelligent comfort and impressive efficiency, the FEM4X1800BL air handler meets ACiQ's highest standards.

5 Kilowatt 17,000 BTU ACiQ Heater Coil

Heater Coil for ACiQ Air Handlers

Enhance the winter-time heating capabilities of your ACiQ air handlers with this high-performance 208/230 volt heater coil. Designed to provide reliable and efficient heating, this heater coil produces an impressive 17,000 BTUs of heat.

7 Kilowatt 23,800 BTU ACiQ Heater Coil

Heater Coil for ACiQ Air Handlers

Upgrade your ACiQ air handlers with this powerful 208/230 volt heater coil to enhance your winter-time heating capabilities. With an impressive heat output of 23,800 BTUs, this heater coil ensures efficient and reliable heating performance.

Product Specifications

More Information
1.5 Ton Multi-Positional ACiQ Air Handler
Weight 112.000000
Manufacturer ACiQ

Carrier Equivalent: FB4CNP018L00

Tempstar Equivalent: FEM4X1800BL

Bryant Equivalent: FB4CNP018L00

Controller Not Included
Included Items Factory installed TXV metering device for use with R-410A refrigerant
Additional Information Aluminum Tube, Aluminum Fin Evaporator Coil
Additional Information No Heat (Plug) Kit factory installed
Cooling BTU 18,000
Blower Motor ECM 5-Speed Motor
Drive Type Direct
Maximum CFM 600
Motor RPM 600-1200
Horsepower .33 HP
Horsepower Mult .33 HP
Electric Heat Electric Heat Strip
Electric Backup Heat Capabilities (Optional) 5 Kilowatts, 8 Kilowatts, 10 Kilowatts
Configuration Upflow, Downflow, Horizontal
Refrigerant R410A
Filter Size 13" x 21 1/2"
EER 11.5-12
Liquid Line 3/8"
Suction Line 5/8"
Electrical 208/230v 1 Phase 60 Hz
Phase Single Phase
Max Breaker Size 15 Amps
Min. Breaker Size 15 Amps
Tonnage 1.5 Ton
Connection Sweat
Fuel Type Electric
Certification UL Listed
Height 42 11/16"
Width 14 5/16"
Depth 22 1/16"
Warranty 1 Year No Hassle Replacement and 10 Year Parts with Registration
Resources You will need Adobe® Acrobat® Reader to view PDF documents.
Safety Information PROPOSITION 65 WARNING
5 Kilowatt 17,000 BTU ACiQ Heater Coil
Weight 9.000000
Manufacturer ACiQ

Carrier Equivalent: KFCEH2401C05

Tempstar Equivalent: EHK05AKB

Bryant Equivalent: KFCEH2401C05

Heating BTU 17,000
Electric Heat 5 Kilowatts
Electrical 208 / 230 / 240 Volts / Phase 1
Phase Single Phase
Min. Breaker Size 30 Amps
Resources You will need Adobe® Acrobat® Reader to view PDF documents.
Safety Information PROPOSITION 65 WARNING
7 Kilowatt 23,800 BTU ACiQ Heater Coil
Weight 9.000000
Manufacturer ACiQ

Carrier Equivalent: KFCEH2501C08

Tempstar Equivalent: EHK07AKB

Bryant Equivalent: KFCEH2501C08

Heating BTU 23,800
Electric Heat 7 Kilowatts
Electrical 208 / 230 / 240 Volts / Phase 1
Phase Single Phase
Min. Breaker Size 45 Amps
Resources You will need Adobe® Acrobat® Reader to view PDF documents.
Safety Information PROPOSITION 65 WARNING


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Questions and Answers

Customer Questions
Who makes ACiQ?
ACiQ air conditioning systems, standard heat pumps, and gas furnaces are manufactured by the largest HVAC manufacturer in America, who also happens to be the seller of the nation’s #1 brand. However, because our prices are SO LOW, they will not allow us to mention their name! They must protect their current market share where typical home systems retail between $15,000 to $25,000 for the identical equipment that we let you buy direct for under $3,000. We offer homeowners and contractors the highest quality and best warranty HVAC systems in the industry at the absolute lowest price. With our industry-leading, high-tech ACiQ equipment, your home and your savings just got a whole lot smarter!
What happens if this breaks down?
HVACDirect.com gives you lifetime tech support. Many common problems can be solved with a phone call to us. HVACDirect.com is an authorized dealer of ACiQ, therefore equipment we sell carries the full manufacturer's warranty. The warranty applies to all parts. You have to register the products online in order to extend the warranty to the full 10 years, otherwise the term is 5 years. If a part fails under warranty, you will not pay anything for the replacement part. Should a part fail under warranty, the first step is to have a professional confirm what part needs to be replaced. Then, contact us at customerservice@hvacdirect.com or by calling and asking for customer service.
What happens if it arrives damaged?
If you are present during drop-off and you see obvious signs of damage or rough handling in transit - please ask the driver to wait while you inspect the equipment. If it is damaged badly enough that you believe it can not function, you have the right to refuse the damaged portion of the shipment. If you discover the damage after the driver has left, take photos of the damage and send them to customerservice@hvacdirect.com. Please refer to your order number in the email. This starts the process and one of our representatives will be in touch with you promptly.
How can I find an installer?
It’s easier than you think – the key is to find an independent contractor or small company as opposed to a larger HVAC service. A one or two person outfit will do the work more quickly and cheaply than a bigger company, too. Yelp.com, Thumbtack.com, and Porch.com are websites are designed to help you connect with a professional in your area. You could also place a call to the last professional who did work on your home and see if they have any recommendations.
What's the warranty?
ACiQ’s 10 year Warranty (online registration required) is one of the top warranties available today.  Many of the higher-SEER units have even higher warranties and some of the higher efficient furnaces have longer heat exchanger warranties.
Is it cheaper to buy a furnace and AC together? (Should I replace my furnace and air conditioner at the same time?)
Remember to factor labor into the budget. Many times the labor can cost as much as the equipment. Therefore, spending a bit more now to replace everything can be less expensive than re-using an older furnace that still works, or putting in a furnace with a plan to ‘add air conditioning later.” By replacing everything at the same time, you will get matching equipment that is all warrantied together. Then you can typically not have to worry about the system for another 15 to 25 years with proper maintenance.
Does this come with a heat strip?
This unit does not come with a heat strip. You will need to purchase it separately and they can be found in the accessories section.
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