Product Overview
18,000 BTU ACIQ Standard Single Zone Mini Split Heat Pump Condenser - R454B | 230V
OVERVIEW
The ACIQ Single Zone series ACIQ-18ZS-HP230C heat pump condenser features inverter technology allowing for superior, adaptive performance. Whether you are in cooling or heat mode, the ACIQ-18ZS-HP230C uses as little power as possible without sacrificing comfort. That's why we say that ACIQ brings intelligence to your heating and cooling needs. NEW REFRIGERANT: R454B Model.
QUICK FACTS
- Intelligent comfort at an affordable cost
- Ideal for up to an average sized room (depending on climate)
- 18,000 BTU, 24 SEER2 wall mounted mini split
- Efficient cooling from 5 F to 122 F outdoor temperatures
- Efficient heating from 5 F to 86 F outdoor temperatures
- Gold Fin full-protection coating
- Quiet operation at even the highest workloads for a truly Stealth experience
18,000 BTU, 24 SEER2
At a rated capacity of 18,000 BTU, the output of the ACIQ-18ZS-HP230C when paired with a matching air handler can easily cover a smaller room in ideal climates. Thanks to the unit's high-efficiency rotary compressor and an inverter-integrated motor, the ACIQ-18ZS-HP230C has an efficiency of 24 SEER2. With such a high system SEER2 rating, the system can heat and cool almost any space suitable for its output much more efficiently than most standard central split systems.
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.

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.
Self Cleaning Condenser
ACiQ condensers stay clean and efficient with self-cleaning technology built right in. At the end of each cycle, the fan reverses direction and blows air out the back of the unit — helping remove leaves, dirt, and debris before buildup can begin.
18,000 BTU ACIQ Standard Single Zone Wall Mount Mini Split Air Handler - R454B | 230V
Enhanced Comfort
ACIQ is a brand designed to bring intelligence to purchasing, installing, and maintaining your home's comfort. The ACIQ-18WS-HP230C single zone air handler can handle medium spaces using adaptive technology to constantly monitor and maintain your setpoint temperature as weather conditions change through day and night. NEW REFRIGERANT: R454B Model.
- Able to cover up to an average sized room in ideal conditions
- 18,000 BTU wall-mounted air handler with remote
- Intelligent comfort at an affordable cost
Intelligent Heating and Cooling
The ACIQ-18WS-HP230C air handler is designed with a soft LED display on the front of the unit giving you information at a glance. The display shows room temperature by default but can also show temperature setpoint changes and mode changes. To ensure your unit runs properly throughout its lifetime, this display will also show any error codes from its self-diagnosing control board. The display can be switched off if desired, and the included smart remote has a built-in LCD display to show these notifications as well.
WiFi Options
ACIQ is WiFi ready! The wall mounted air handlers come with everything you need to control your home's heating and cooling via smart device (iOS or Android) from anywhere in the world. ACIQ is also compatible with Amazon Alexa and Google Assistant.
Please note that in order to function, this air handler must be installed with a condenser and other installation equipment, available at an additional cost if not already included in this product bundle.

Wall Mounted
Traditional wall-mounted air handlers are the most popular ductless choice due to low cost and ease of installation. Wall mounted units are located high on an outside wall, with refrigerant lines and condensation drain hose exiting the back through a 3" wall penetration. Return air is brought in through vents in the top of the unit, and cooled or heated air exits the lower front through a sweepable louver. Wall mounted air handlers are WiFi compatible and can be controlled by the free NetHome Plus app or by voice assistants such as Alexa or Google Home.
Smartphone App
In addition to the handheld or wired remote that is already included, wall mounted units are WiFi ready, and can be controlled from anywhere with a free app on your tablet or smartphone.


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.
Technical Specifications — ACIQ-18ZS-HP230C
| sku | ACIQ-18ZS-HP230C |
|---|---|
| refrigerant charge | 47.97 oz. |
| weight | 100.310000 |
| ahri certificate number | 216980869 |
| manufacturer | ACiQ |
| hspf2 | 11.1 |
| cooling btu | 18,000 BTU |
| heating btu | 18,000 BTU |
| decibel level (dba) | 59 |
| electric heat | Heat Pump |
| energy star | Yes |
| refrigerant | R454B |
| seer2 | 24 |
| compressor type | Rotary |
| liquid line | 1/4" |
| suction line | 1/2" |
| electrical | 208/230V, 1 Phase, 60 Hz |
| electric phase filter | Single Phase |
| max breaker size | 20 Amps |
| min. breaker size | 18 Amps |
| tonnage | 1.5 Ton |
| btu/tonnage | 18,000 BTU/1.5 Ton |
| mini split type | Wall Mounted |
| zone compatibility | Single Zone |
| height | 26.5" |
| width | 35.04" |
| depth | 13.46" |
| warranty | 12 year compressor, 7 year parts with online registration |
| safety information | PROPOSITION 65 WARNINGThis product and many products on our site may contain a chemical know to the state of California to cause cancer or birth defects or other reproductive harm. For more information about Proposition 65 pleaseClick Here. |
Technical Specifications — ACIQ-18WS-HP230C
| sku | ACIQ-18WS-HP230C |
|---|---|
| refrigerant charge | 47.97 oz. |
| weight | 39.680000 |
| ahri certificate number | 216980869 |
| manufacturer | ACiQ |
| hspf2 | 11.1 |
| cooling btu | 18,000 BTU |
| heating btu | 18,000 BTU |
| maximum cfm | 759.3 |
| decibel level (dba) | Up to 54 Decibels |
| electric heat | Heat Pump |
| energy star | Yes |
| refrigerant | R454B |
| seer2 | 24 |
| compressor type | Rotary |
| liquid line | 1/4" |
| suction line | 1/2" |
| electrical | 208/230V, 1 Phase, 60 Hz |
| electric phase filter | Single Phase |
| tonnage | 1.5 Ton |
| btu/tonnage | 18,000 BTU/1.5 Ton |
| mini split type | Wall Mounted |
| zone compatibility | Single Zone |
| height | 13.27" |
| width | 42.60" |
| depth | 9.21" |
| warranty | 12 year compressor, 7 year parts with online registration |
| safety information | PROPOSITION 65 WARNINGThis product and many products on our site may contain a chemical know to the state of California to cause cancer or birth defects or other reproductive harm. For more information about Proposition 65 pleaseClick Here. |
Warranty
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We will prepare your order within 24 hours if it’s received on a weekday (before noon). Orders are shipped in one to two business days. Transit time is between 3 to 6 business days, although exceptions apply. We email tracking information once your purchase is shipped.
Delivery Map

IMPORTANT DELIVERY INFORMATION: Please be kindly informed that this air conditioner, due to its weight and shipping restrictions, is shipped palletized with an arranged freight service and requires an appointment for delivery. To AVOID delays, please check if the provided phone number in the order details is a current number where you can be reached. You can also contact the carrier directly and refer to your tracking number to set up a date and time for your appointment. It is your responsibility to ensure a safe and secure environment for delivery. Please note that we cannot be held liable for any packages that are stolen or lost after delivery has been confirmed. PLEASE verify your shipping address, as changes to the address after freight has shipped can result in an additional 15% or higher fee depending on freight weight and dimensions.
SMALLWARES INFORMATION: Please be informed that for smaller items, such as Installation Kits, Smart Connectivity Dongles, and TTW Sleeves, when these items are ordered individually, they may be shipped via FedEx without a signature requirement. It is your responsibility to ensure a safe and secure environment for delivery. Please note that we cannot be held liable for any packages that are stolen or lost after delivery has been confirmed. Thank you for your understanding and cooperation.
INSPECT YOUR MERCHANDISE BEFORE SIGNING: Please inspect your boxes thoroughly when you receive them. They should arrive shrink-wrapped and on a pallet. If you notice any damages or imperfections (e.g. crushed box or forklift hole), please write comments on the receipt before signing for delivery, no matter how small damages seem. Contact us immediately to assist you.
Shipping & Delivery
We will prepare your order within 24–48 hours if it’s received on a weekday (before noon). Orders are shipped in one to two business days. Transit time is between 3 to 6 business days, although exceptions apply. We email tracking information once your purchase is shipped.
Delivery Map
IMPORTANT DELIVERY INFORMATION
Please be informed that this air conditioner, due to its weight and shipping restrictions, is shipped palletized with an arranged freight service and requires an appointment for delivery.
To AVOID delays, please make sure the phone number in your order details is accurate and one where you can be reached. You may also contact the carrier directly using your tracking number to schedule your delivery.
It is your responsibility to ensure a safe and secure delivery environment. We are not liable for any packages that are stolen or lost after delivery is confirmed.
Please verify your shipping address carefully. Changes to your shipping address after the freight has been shipped may result in additional fees of 15% or more, depending on freight weight and dimensions.
SMALLWARES INFORMATION
Smaller items such as Installation Kits, Smart Connectivity Dongles, and TTW Sleeves may be shipped via FedEx without a signature requirement if ordered individually.
It is your responsibility to ensure a safe delivery location. We are not liable for packages lost or stolen after delivery confirmation. Thank you for your understanding and cooperation.
INSPECT YOUR MERCHANDISE BEFORE SIGNING
Please inspect your boxes carefully upon delivery. Shipments should arrive shrink-wrapped and on a pallet. If you notice any damage or signs of mishandling (such as a crushed box or forklift puncture), write comments on the delivery receipt before signing, even if the damage appears minor.
Contact us immediately if any issues arise so we can assist you promptly.
SMS Delivery Notifications
If you opted into SMS notifications, we may send you order updates or delivery reminders by text message. Message frequency may vary. Message and data rates may apply. Text STOP to opt out. Text HELP for assistance.
For more details, see our Privacy Policy.
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