Technical Data
Specs, manuals, videos, and product documents
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A smart, reliable choice for year-round comfort.
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Get the most out of your indoor comfort by choosing ACIQ FHMA5X18L0AA air handler that fits your needs. This air handler include comfort enhancing and durability features to deliver lasting performance. If you want superior quality and enhanced comfort, look no further than this model.
The ACIQ FHMA5X18L0AA air handler is rated for an output of 1.5 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.
With R454B refrigerant, ACIQ proudly displays our commitment to environmental stewardship. It is a refrigerant that delivers a 75% decrease in global warming potential while maintaining original R-410A's non-ozone depleting properties. All new ACIQ fan coils with R454B include factory-installed leak dissipation systems to meet new UL requirements and to show our commitment to safety.
ACIQ offers a 5 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.
To make a more versatile unit, ACIQ designed the FHMA5X18L0AA 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 FHMA5X18L0AA 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.
The FHMA5X18L0AA air handler has an efficient 5-speed ECM blower motor, 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 FHMA5X18L0AA meets ACIQ's superior standards.
The ACIQ R5H5S18AKAAA is a standard heat pump condenser. Designed with comfort in mind and an inexpensive option for nearly any application, this condenser is considered a good all-around option for almost any application.
The ACIQ R5H5S18AKAAA heat pump condenser has an output of 1.5 tons, generally enough to heat and cool up to a small 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 ACIQ R5H5S18AKAAA air conditioner condenser is rated at 14.3 SEER2, making it between 5-7% more efficient than standard 13.4 SEER2 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.
Disclaimer: This condenser contains R454B refrigerant, which is classified as an A2L refrigerant. To comply with safety standards, this unit must be paired with an R454B air handler or evaporator coil equipped with a leakage detection system. Failure to comply with these requirements may result in safety hazards and could void the warranty.
All ACIQ condensers come pre-charged with enough refrigerant for a 15-foot line set, making installation faster and more convenient. This pre-charged design saves installers time and reduces labor costs by eliminating the need for manual refrigerant charging. It also helps ensure the system starts with the correct amount of refrigerant, minimizing the risk of improper charging that could impact performance and efficiency. If a longer line set is required, your installer will need to add additional refrigerant to maintain optimal operation.

Leave fossil fuels behind with an ACiQ heat pump system. Every ACiQ heat pump condenser uses a scroll compressor to give exceptional cooling
performance and highly efficient, all-electric heat. WiFi-capable communicating condensers are also available.
ACiQ heat pumps come in a range of efficiency options to fit your budget's needs and your local weather conditions. Save up to 63% on energy costs with a newer model.


ACiQ heat pump condensers are 100% run-tested at the factory. Protective coatings on the fins and baked-on galvanized finishes mean long life even in harsh conditions. ACiQ’s extended warranty with online registration provides 10 year protection.
| sku | R5H5S18AKAAA |
|---|---|
| refrigerant charge | 15' |
| weight | 167.000000 |
| manufacturer | ACiQ |
| product features | New Refrigerant Compliant |
| hspf2 | 7.5 - 7.8 |
| cooling btu | 18,000 |
| heating btu | 18,000 |
| maximum cfm | 1900 |
| decibel level (dba) | 72 |
| horsepower | .08 HP |
| energy star | No |
| refrigerant | R454B |
| seer2 | 14.3 |
| condenser stages | Single Stage |
| compressor type | Scroll |
| liquid valve size | "3/8"" |
| suction valve size | "5/8"" |
| electrical | 208/230-200/230v 1 Phase 60 Hz |
| electric phase filter | Single Phase |
| max breaker size | 15 Amps |
| min. breaker size | 10.9 Amps |
| tonnage | 1.5 Ton |
| height | "31.7"" |
| width | "31.2"" |
| depth | "31.2"" |
| warranty | 10 Years Parts with Online Registration |
| safety information | PROPOSITION 65 WARNING |
| sku | FHMA5X18L0AA |
|---|---|
| weight | 120.000000 |
| manufacturer | ACiQ |
| cooling btu | 18,000 |
| blower motor | Multi-tap 5-Speed ECM |
| maximum cfm | 525 |
| horsepower | 1/3 HP |
| electric backup heat capabilities (optional) | 5 Kilowatts, 8 Kilowatts, 10 Kilowatts |
| configuration | Multi-Positional |
| refrigerant | R454B |
| filter size | "13\" x 20\"" |
| liquid line | "3/8\"" |
| suction line | "5/8\"" |
| electrical | 208/230v 1 Phase 60 Hz |
| max breaker size | 15 Amps |
| min. breaker size | 3.6 Amps |
| tonnage | 1.5 Ton |
| connection | Sweat |
| height | "42 11/16\"" |
| width | "14 5/16\"" |
| depth | "22 1/16\"" |
| warranty | 10 Years Parts and 5 Years No Hassle Replacement with Online Registration |
| safety information | PROPOSITION 65 WARNING |
Technical Data
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Product FAQs
ACiQ offers a broad range of heating, cooling, ventilation, thermostat, and water-heating products. Its catalog includes mini splits, central air conditioners and heat pumps, furnaces, air handlers, PTAC systems, mobile-home HVAC equipment, commercial systems, thermostats, ventilation products, and hybrid water heaters. Availability and specifications vary by model.
ACiQ provides support through its official contact form and by phone at 1-877-909-ACiQ. The published support hours are Monday through Friday, 8:00 a.m. to 5:00 p.m. Have the model number, serial number, and a clear description of the question or problem ready.
ACiQ’s registration form requests the part number, serial number, purchase date, installation date, customer contact and address information, and installer details, including the installer name, license number, and phone number or other identifying information.
Submit a request through the official ACiQ Parts Quote form or contact ACiQ parts support. Include the SKU or model number and a clear description of the part needed so the parts team can identify the correct component.
Use the official ACiQ Tech Center and select the appropriate product category. ACiQ organizes installation manuals, owner manuals, specification sheets, wiring diagrams, troubleshooting guides, warranty documents, and other technical resources by product family and model.
Start with ACiQ’s official warranty claim form. Be prepared to provide the owner’s contact information, the equipment model number, a description of the issue, and any supporting files requested. Additional diagnosis and equipment documentation may be required before the claim is approved.
ACiQ states that a factory-authorized, EPA-certified contractor must diagnose the equipment. The submission should include the diagnostic procedure, the required part number or part description, and the model and serial numbers. ACiQ may also request the original installation invoice.
ACiQ’s published warranty-resolution process states that round-trip shipping and labor associated with diagnosis and part replacement are not reimbursed. Coverage can vary by product and jurisdiction, so review the exact warranty certificate for the equipment before proceeding.
Register the equipment through ACiQ’s official online warranty registration form. Add each unit being registered and submit the requested equipment, customer, purchase, installation, and installer information. Keep a copy of the completed registration and related purchase and installation records.
Use ACiQ’s Warranty Finder to look up a registration, check its status, or provide missing information. Have the equipment and owner details available so the record can be matched accurately.
No. ACiQ warranty periods and conditions vary by product type and model. Review the warranty certificate listed for the exact equipment and use ACiQ’s warranty resources to confirm the applicable parts, compressor, replacement, registration, and eligibility terms.