Product overview
18,000 BTU ACiQ Extreme Series Single Zone Condenser | R454B
Overview
The ACiQ Extreme series is equipped with Extreme Heat technology, allowing continuous heating even in frigid temperatures as low as -22 degrees outside. Enjoy optimal efficiency with high SEER and high HSPF ratings, whether you need cooling or heating for your space.
Quick Facts
- Delivers maximum performance at an affordable price
- Perfect for spaces ranging from approximately 600-900 sq/ft (varies by climate)
- Efficient cooling from -22°F to 122°F outdoor temperatures
- Efficient heating from -22°F to 75°F outdoor temperatures
- Gold fin condenser with full-protection coating
- Includes Base Pan Heater
- Operates quietly even under heavy workloads
Please note that this model of equipment does not have quick connect line set connectors and is not a DIY unit. Installation materials such as line sets, control wire, drain hose, whip and disconnect are not included, but are available at additional cost in the Accessories section on this page. You will need a professional to add more refrigerant and vacuum the lines as needed. The automated cleaning function will clean your system, but it is recommended to periodically clean the unit's filters manually.
Extreme Heat Base Pan Heater Technology
Each ACiQ condenser has integrated Extreme Heat technology to maximize heat performance in extreme cold weather. Extended heat pump performance (HyperHeat) harnesses the power of inverter condenser with outdoor temp sensing, variable refrigerant flow and variable condenser fan speed to maximize heat extraction all the way down to -22°F. Plus, every Extreme Heat ACiQ condenser includes a base pan heater to keep ice from collecting on the condenser coil during heat pump operation.
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.
18,000 BTU Concealed Duct ACiQ Mini Split Air Handler| R454B
Concealed Duct air handlers give you all the advantages of a multi zone mini split, without any visible air handlers on your walls or ceilings. These flexible units are designed to be concealed above the ceiling, below the floor, above a closet ceiling, above a hallway ceiling or behind a soffit. You run flex ducting from the concealed duct air handler to ceiling or wall registers in your desired location. Depending on the capacity of the unit, up to 4 flex duct runs can be connected, perfect for a pair of small bedrooms or a master suite.
The design is extremely simple return air is brought in at the rear of the unit and supply (cooled or heated) air is pushed out the front by an almost-silent squirrel cage fan. You attach a pre-made manifold takeoff or field-fabricate plenums using ductboard. Using readily available supplies, the customization possibilities are endless.
Installation Considerations
Concealed duct system installations require a certain amount of pre-planning, and are similar in scope to a standard home HVAC installation. They are best used in new construction projects or additions. Installation will require flex ducting, register vents, plenums and installation supplies in addition to the equipment parts. The Concealed Duct units have a factory-installed pump to lift the condensation. From there you will use PVC to construct a drain system to a safe wastewater location.
FEATURES
- 18,000 btu of Heating or Cooling
- Dry and Fan modes also available
- Good for a medium room in most climates
- Wall mounted thermostat included
Concealed Duct
Concealed Duct air handlers give you all the advantages of a multi zone mini split, without any visible air handlers on your walls or ceilings. These flexible units are designed to be concealed above the ceiling, below the floor, above a closet ceiling, above a hallway ceiling or behind a soffit. Air distribution is achieved by using flex ducting from the concealed duct air handler to ceiling or wall registers in your desired location. Using readily available supplies such as ductboard, duct takeoffs and flex ducting, you can create a flexible, economical solution for a wide variety of applications.
Quiet Comfort
Every ACiQ system is precision engineered to quickly achieve set temperature and hold it there, no matter what the weather is outside. With whisper quiet indoor and outdoor units, ACiQ never intrudes on your peace and quiet.
In-stock systems ship fast and free with curbside freight delivery, typically arriving in 4–10 days. Please inspect each box at delivery and note any damage on the receipt before signing — it keeps any freight claim quick and simple.
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At a glance
Tech specs
| Condenser capacity | 18K BTU |
|---|---|
| Zones / rooms | 1 Zone |
| Power | 230 Volt |
| Mount type | Wall |
| Installation | DIY |
| Brand | ACiQ |
Sizing in doubt? Our HVAC experts confirm capacity for your rooms before you order — free. Ask us about utility rebates for high-efficiency heat pumps in your area.
