4 Ton 15 SEER AirQuest Heat Pump System
Model: NXH648GKA / FCM4X4800AL / WALLCON

Regular Price: $7,231.95

Special Price $409.95

4 Ton 15 SEER AirQuest Heat Pump System

By: AirQuest Model: NXH648GKA / FCM4X4800AL / WALLCON ID: 23733

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Regular Price: $7,231.95

Special Price $409.95

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Regular Price: $7,231.95

Special Price $409.95




An AirQuest combination system is a great choice to keep your home comfortable all year long. With tons of extra features and a great price, the NXH648GKA is a perfect choice for a heat pump.

All AirQuest models are manufactured with Carrier and come with a 10 year parts warranty and 20 year heat exchanger limited warranty. Not intended for use in mobile homes.

Ion System Control

Don’t call it a thermostat -- mere thermostats simply don’t offer all of the features and functionality of the Ion™ System Control. Offering full command over a communicating comfort system, including temperature, humidity, ventilation, comfort scheduling, energy management and more, this is our most fully-featured control. Anywhere in the connected world, you are just a touch or a tap away from full system control with an internet-enabled device.
  • High resolution, smartphone-like touchscreen
  • Wi-Fi enabled for remote access and control
  • Pair with our communicating, modulating gas furnace; variable-speed fan coil; inverter-driven outdoor units; and zoning system for a complete Ion Comfort System
  • Capable of controlling temperatures and fan speeds in up to eight zones
  • Local weather 5-day forecast
  • Humidity control for enhanced comfort
  • Dual fuel system management capable
  • Auto changeover between heating and cooling
  • Four levels of "constant ON" fan speeds
  • 7-day programming with temperature control throughout the day and week (wake, away, home, sleep)
  • Advanced smart setback for optimal energy savings during "away" and ramp up periods
  • One-button Touch-N-Go quick-settings-change feature
  • Simple vacation programming controls temperature and humidity
  • System maintenance reminders
  • 10-Year No Hassle Replacement Limited Warranty

4 Ton 16 SEER AirQuest Heat Pump Condenser


The AirQuest NXH648GKA is a standard heat pump condenser. Designed with comfort in mind and a high efficiency rating for nearly any application, this condenser is considered a good all-around option for almost any all-electric split system application.


  • 4 ton, 16 SEER heat pump condenser
  • Can heat and cool up to a large house in average conditions
  • Single Stage
  • Filter drier included to be field-installed
4 Tons

The AirQuest NXH648GKA heat pump condenser has an output of 4 tons, generally enough to heat and cool up to a large house in ideal climates. In many system configurations, the tonnage of the unit???s paired coil or air handler will be larger in tonnage than this condenser, which maintains the efficiency of the unit.
Please note that this condenser cannot function on its own, and it needs an indoor coil or air handler to work. This unit will also only heat down to around 35??F, and if you need heat any lower than this, a backup heat strip will be needed to act as straight electric heating in a compatible air handler.


The AirQuest NXH648GKA air conditioner condenser is rated at 16 SEER, making it approximately 12% more efficient than the minimum efficiency 14 SEER units, saving you money in electric bills over the entire lifetime of your unit. In general, heat pumps will heat more efficiently than straight electric furnaces, making them an excellent and money-saving solution for almost any all-electric solution, especially when you have a lot of heating during outdoor temperatures ranging from when you start using your heating system all the way down to 35??F.


AirQuest offers a 10 year parts warranty on its condensers. For these warranties to be upheld, the unit must be installed following your state and local codes, a new and certified coil must be installed at the same time, and the entire system must be registered online through the manufacturer.


The cabinet of AirQuest units are extremely durable. On the NXH648GKA, there are reinforced corner posts and the internals of the unit are protected by an additional inlet grille, all to provide enhanced protection to the unit.

4 Ton Multi-Positional AirQuest Communicating Air Handler


Considered part of their top of the line series, the AirQuest by Carrier FCM4X4800AL is superior In quality of comfort, efficiency, and features. From its variable speed communicating blower motor to its integrated TXV kit, this unit will provide reliable comfort to your home while performing efficiently.


  • 4 ton air handler
  • Variable speed communicating blower motor
  • Enhanced dehumidification and temperature control
  • Multi-positional—can be installed in the upflow, downflow, and horizontal configurations
  • Factory-installed TXV kit for enhanced energy optimization
  • Compatible with both AC-only and heat pump condensers
  • Sturdy, fully insulated cabinet
  • Convenient integrated washable filter
4 Tons

The AirQuest by Carrier FCM4X4800AL air handler is rated for an output of 4 tons. In many cases, this air handler will be larger in tonnage than the condenser it is paired with to maintain the unit’s overall efficiency.
Please note that for this unit to provide cooling, an outdoor condenser is required for it to function. The unit can support electric heating as a straight electric furnace or as a backup for a heat pump, offered at an additional cost to be field installed.


AirQuest offers a 10 year no hassle replacement warranty, as well as a 10 year parts warranty on this unit. For these warranties to be upheld, the unit must be installed following your state and local codes, a new and certified coil must be installed at the same time, and the entire system must be registered online through the manufacturer. After your purchase, a representative will reach out to you to retrieve installation information so we can register the product for you.

Installation and Durability

To make a more versatile unit, AirQuest by Carrier designed the FCM4X4800AL to easily be installed in an upflow, downflow, or horizontal position. A TXV kit is already installed on the unit so your installer does not have to install one, decreasing installation costs. For durability, the FCM4X4800AL air handler is designed with an extremely strong, one-piece outer casing to protect the unit, and the coil is designed with corrosion-resistant aluminum. To reduce mold and bacteria buildup, the drain pan is treated and is sloped.

Intelligent Comfort

The FCM4X4800AL air handler has an ECM variable speed blower motor, not only increasing its efficiency but also providing a more stable temperature in your home, making you more comfortable. The control board will automatically communicate with your thermostat to adjust the output of the blower to suit your needs. With this intelligent comfort and efficiency, the FCM4X4800AL meets AirQuest’s superior standards to be a part of the Carrier family of units.


Ion System Control

resources You will need Adobe® Acrobat® Reader to view PDF documents.
safety_informationPROPOSITION 65 WARNING

4 Ton 16 SEER AirQuest Heat Pump Condenser

compressor_stageSingle Stage
electrical208 / 230 V. 1 Phase 60 Hz
max_breaker_size45 amps
min_breaker_size31.8 amps
nominal_capacity4 Ton
warranty10 Years with Online Registration
safety_informationPROPOSITION 65 WARNING

4 Ton Multi-Positional AirQuest Communicating Air Handler

carrier_equalCarrier Equivelant: FE4ANF005L00 Tempstar Equivalent: FCM4X4800AL Bryant Equivelant: FE4ANF005L00
blower_motorVariable Speed - ECM
electrical208/240  V, 1 Phase,  60 Hz
max_breaker_size15 amps
nominal_capacity4 Ton
height53 7/16"
width21 1/8"
depth22 1/16"
warranty10 Years No Hassle Replacement Warranty with Online Registration
resources You will need Adobe® Acrobat® Reader to view PDF documents.
safety_informationPROPOSITION 65 WARNING



2 Customer review(s)
Fantastic customer support.
I'm using most of the features this controller offers and it was tricky to get my old ventilator working with this new HVAC system. When we exhausted the knowledge in-house at HVACdirect.com, they referred me to a local expert who stuck with me until all capabilities were functioning perfectly. One thing to know about this controller... If running a whole house ventilation system... there is a 1-1/2 minute delay before the furnace fan begins to do its part. That delay kept me wondering what was wrong for a few weeks but now it all works perfectly. Highly recommend HVACdirect.com and the ION system controller.
Review by Gary / (Posted on 08/08/19)
replacing old hvac
prompt service, delivered in two days. very helpful staff.
Review by Terry (tlbud) Linton / (Posted on 24/06/20)

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