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ACiQ 18,000 BTU 1.5 Ton 25 SEER2 Multi Zone Condenser Extreme Series | Inverter - R454B
Summary
The ACiQ Extreme Series ACIQ-18Z-HH-M3C is a premium multi-zone heat pump condenser featuring Extreme Heat technology for superior low-temperature performance. With an outstanding 25 SEER2 rating and 10.4 HSPF2, this 18,000 BTU (1.5 Ton) inverter system delivers exceptional efficiency in both heating and cooling modes.
This heavy-duty unit operates in extreme temperatures from -22°F to 122°F, with integrated base pan heater and Gold Fin coil protection for maximum durability. Designed to support up to 3 indoor air handlers (maximum 22,500 BTU total capacity), it provides zoned comfort with different temperature settings for each space.
The advanced inverter technology constantly adjusts performance for optimal efficiency and quiet operation (61.5 dB), while the rotary compressor ensures reliable performance in demanding conditions.
Important
Professional installation required - not a DIY unit. Registration required within 60 days for full warranty. Minimum two air handlers must be connected for operation. Installation kit not included.
What's Included
- Extreme Series Outdoor Condenser Unit [SKU: ACIQ-18Z-HH-M3C]
- Installation Manual
- Owner's Manual
- Manufacturer Warranty Information
Key Features:
- Extreme Heat Technology (-22°F operation)
- 25 SEER2 / 10.4 HSPF2 Efficiency
- Multi-Zone Operation (Up to 3 indoor units)
- Integrated Base Pan Heater
- Gold Fin Condenser Coil Protection
- Quiet Operation (61.5 dB)
- Energy Star Certified
- 208/230V Power Supply
- R454B Refrigerant
- Rotary Compressor
- Low Ambient Heating
- Rebate Available
Technical Information
Model Number: ACIQ-18Z-HH-M3C
System Type | Multi-zone heat pump (2-3 zones) |
Cooling Capacity | 19,000 BTU |
Heating Capacity | 20,000 BTU |
Tonnage | 1.5 Ton |
Power Source | 208/230V, 1Ph, 60Hz |
SEER2 Rating | 25 |
SEER Rating | 21-22 |
HSPF2 Rating | 10.4 |
EER | 12.5 |
Refrigerant | R454B |
Refrigerant Charge | 73.8 oz |
Operating Temp Range | -22°F to 122°F |
Noise Level | 61.5 dB(A) |
Line Set Connections | 3/8" suction (3), 1/4" liquid (3) |
Electrical Requirements | 17.5-20A breaker |
Dimensions (WxDxH) | 42.91x19.68x34.84 in |
Weight | 148.15 lbs |
Compressor Type | Rotary |
Electric Heat | Heat Pump |
Mini Split Type | Wall Mounted |
Zone Compatibility | Multi Zone |
AHRI Certificate | 216032361 |
Energy Star Certified | Yes |
Warranty
- 12 year compressor limited warranty (with registration)
- 7 year parts limited warranty (with registration)
- Professional installation required
- View Full Warranty Details
Compatible Systems
This Extreme Series condenser supports up to 3 ACiQ indoor units with total capacity up to 22,500 BTU. Compatible with:
- ACiQ Wall Mounted Air Handlers (9K, 12K, 18K BTU)
- ACiQ Ceiling Cassette Units
- ACiQ Slim Duct Units
Zone Combination Examples
2-ZONE SYSTEMS | 3-ZONE SYSTEMS |
9K + 9K (18K) | 9K + 9K + 9K (27K)* |
9K + 12K (21K) | 9K + 9K + 12K (30K)* |
12K + 12K (24K)* | 9K + 12K + 12K (33K)* |
*Note: Maximum recommended total connected capacity is 22,500 BTU (1.25 × outdoor unit capacity). "K" = 1,000 BTU
Certifications
Energy Star Certified | AHRI Certified | EPA Refrigerant Compliant
Manuals & Downloads
- Installation and Owner's Manual
- Product Submittal Data
- Warranty Information
- Heat Performance Chart
- AHRI Certificate - Ducted Indoor Units
- AHRI Certificate - Non-Ducted Indoor Units
Safety Information: PROPOSITION 65 WARNING
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
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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




