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ACiQ 18,000 BTU Ceiling Cassette Mini Split Air Handler (R454B) - ACIQ-18CC-HH-MC
Summary
The ACiQ Ceiling Cassette air handler provides a discreet, high-efficiency heating and cooling solution that mounts flush with your ceiling. This 18,000 BTU unit delivers quiet, four-way airflow (as low as 23.5 dB) while maintaining a low-profile appearance with only the decorative grille visible. Perfect for rooms where wall space is limited or a cleaner aesthetic is desired.
This system features reliable performance with its included wireless remote and optional WiFi control for convenient operation. The factory-installed condensate pump simplifies installation while providing centralized air distribution for consistent comfort.
Key Features:
- Flush Ceiling Mount: Only the decorative grille remains visible
- Four-Way Air Distribution: Even comfort throughout your space
- Ultra-Quiet Operation: As low as 23.5 dB(A) - quieter than a whisper
- Factory-Installed Condensate Pump: 14" lift capacity
- Included Handheld Remote: Easy temperature control
- WiFi Compatible: Optional smart control capability
- R454B Refrigerant: Next-generation, environmentally friendly
- Dry & Fan Modes: Dehumidification and air circulation options
Important
Professional installation required for warranty validation. Registration must be completed within 60 days of installation at ACiQ.com. Installation materials (line sets, control wire, drain hose, whip, and disconnect) are not included but available separately. This system uses R454B refrigerant.
Technical Specifications
Category | Specification | Unit | Value |
---|---|---|---|
Power Supply | Rated | V, Ph, Hz | 208/230, 1, 60 |
Capacity | Cooling | Btu/h | 18,000 |
Heating | Btu/h | 18,000 | |
Air Flow | Maximum | CFM | 447.3 |
Noise Level | Minimum | dB(A) | 23.5 |
Refrigerant | Type | R454B | |
Connections | Liquid Line / Gas Line | inch | 1/4" / 1/2" |
Drainage | Pump Lift Capacity | inch | 14 |
Dimensions | Unit (H×W×D) | inch | 9.65×22.44×22.44 |
Cutout Size | inch | 22.05×22.05 | |
Net Weight | lbs | 41.89 | |
Electrical | Breaker Size | A | 15 |
Included Accessories | Handheld remote, decorative grille, installation kit |
Warranty
- 12 year compressor limited warranty (with online registration)
- 7 year parts limited warranty (with online registration and professional installation)
- 1 year remote control warranty
Installation Considerations
- Requires ceiling cavity for flush mounting (minimum 9.65" height)
- Fits between 24" on-center joists (16" on-center requires framing modification)
- Factory-installed pump provides 14" lift - additional PVC drainage required beyond this
- 1/4" liquid line and 1/2" suction line connections
- Recommended for medium rooms (approximately 600-800 sq/ft depending on climate)
- Central location provides optimal air distribution
- Professional installation required for warranty validation
Performance Features
- Four-way air discharge for even room coverage
- Auto-restart after power failure
- Sleep mode for quiet nighttime operation
- Turbo mode for rapid cooling/heating
- Self-diagnosis system with error codes
- 24-hour timer function
- 4 fan speeds plus auto mode
- Auto swing louvers
- Intelligent defrost cycle
- Dry mode for dehumidification
- Fan-only mode for air circulation
Manuals & Downloads
- Submittal Data (PDF)
- Installation Manual (PDF)
- Owner's Manual (PDF)
- Remote Control Manual (PDF)
- Service Manual (PDF)
- Warranty Information
Safety Information
PROPOSITION 65 WARNING: This product can expose you to chemicals including lead and copper, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
Brackets and Concrete Pads
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18"x40"x4" Plastic Equipment Mounting Pads – Lightweight, Durable Base for HVAC Units & Outdoor Installations
Regular price $69.00Sale price $69.00 Regular priceUnit price perSold out -
ARMBRIDGE 18"x38"x3" Ribbed Plastic Condenser Pad | Shock-Absorbing, Anti-Slip Foundation for HVAC Systems and Outdoor Equipment
Regular price $64.00Sale price $64.00 Regular priceUnit price per -
ARMBRIDGE AB-RF Rubber Feet Mounting Set – Heavy-Duty Adjustable Base with Built-In Leveler
Regular price $65.00Sale price $65.00 Regular priceUnit price per -
ARMBRIDGE Heavy-Duty Mini Split Ground Stand, Zinc-Coated Brackets for 9,000–36,000 BTU Units | Weatherproof Design, 330+ lbs Capacity
Regular price $100.00Sale price $100.00 Regular priceUnit price per -
ARMBRIDGE Mini Split Wall Mounting Bracket High Load Capacity | Foldable 304 Stainless Steel, Vibration-Absorbing (Up to 550 lbs Each)
Regular price $89.00Sale price $89.00 Regular priceUnit price per -
Heavy-Duty Mini Split Ground Stand with Load Capacity up to 500LBS, Condenser Bracket for 9000-55000 BTU Ductless Air Conditioners and Heat Pump, Inverter Systems
Regular price $129.99Sale price $129.99 Regular priceUnit price perSold out -
Heavy-Duty Mini Split Ground Stand with Load Capacity up to 770LBS, Condenser Bracket for 9000-60000 BTU Ductless Air Conditioners and Heat Pumps, Inverter Systems
Regular price $169.99Sale price $169.99 Regular priceUnit price perSold out -
Heavy-Duty Mini Split Wall Bracket with Load Capacity up to 480LBS, Condenser Bracket for High BTU Ductless Air Conditioners and Heat Pump, Inverter Systems
Regular price $89.97Sale price $89.97 Regular priceUnit price perSold out -
Mini Split Compressor Bracket for 6,000 - 28,000 BTU
Regular price $49.00Sale price $49.00 Regular priceUnit price per
Line covers
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12FT PVC Decorative Line Set Cover Kit for Ductless Mini Split Air Conditioners, Heat Pumps, and Inverters systems.
Regular price $72.00Sale price $72.00 Regular priceUnit price per -
16.5FT Brown PVC Decorative Line Set Cover Kit for Ductless Mini Split Air Conditioners, Heat Pumps, and Inverters systems.
Regular price $89.00Sale price $89.00 Regular priceUnit price perSold out -
ARMBRIDGE 6FT PVC Decorative Black Line Set Cover | Duct for Ductless Mini Split Air Conditioners, Heat Pumps, and Inverter Systems
Regular price $34.00Sale price $34.00 Regular priceUnit price per -
ARMBRIDGE 6FT PVC Decorative White Line Set Cover Duct | for Ductless Mini Split Air Conditioners, Heat Pumps, and Inverter Systems
Regular price $34.00Sale price $34.00 Regular priceUnit price per
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.
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Cooper & Hunter
DETAILED PRODUCT BOOKLETS FOR THIS PRODUCT:
Olivia Series Booklet
Multi-Zone Booklet
Specification Table
Quick-Start Guide
Installation Manual
General Manufacturing Information
Rebates




