Product overview
ACiQ R454B, 18,000 BTU 1.5 TON 19 SEER2 Central Heat Pump Inverter System with Multi-Position Extreme+ Air Handler with Wi-Fi Included – Choose your Installation Kit and Auxiliary Heat Strip Size – ACIQ-18-PAH + ACIQ-18-HPD
Summary
ACiQ’s Extreme+ Series provides best-in-class comfort, efficiency, and flexibility. The inverter heat pump paired with a smart, multi-position air handler offers quiet performance, advanced heating in sub-zero temperatures, and seamless ductwork integration. Enjoy Wi-Fi control, 19 SEER2 efficiency, and intelligent performance year-round—even in extreme cold as low as -22°F. Ideal for new installs or upgrades.
Included in Your Order:
ACiQ Extreme+ Air Handler System (18,000 BTU)
Outdoor Unit: 18,000 BTU (1pc) – Model: ACIQ-18-HPD
Indoor Unit: 18,000 BTU (1pc with remote) – Model: ACIQ-18-PAH
Optional Installation Kit (16ft, 25ft, or 50ft options available) Must be selected above.
Optional Auxiliary Heat Strip (5KW, 8KW, or 10KW) Must be selected above.
Wireless Remote Control
Installation Manual
User's Manual
Manufacturer Warranty
Key Features:
- Extreme Heat: Maintains 100% heating capacity at 0°F, 80% at -22°F
- Smart self-adjusting inverter with soft start-up
- Multi-positional air handler (upflow, downflow, horizontal)
- Variable-speed fan motor
- Wi-Fi enabled + "Follow Me" Mode
- Low ambient heating & quiet operation
- Eco, Turbo, and Freeze Protection Modes
- Compatible with standard 24v thermostats
Important
All units must be installed by a licensed HVAC professional for the warranty to be valid. Registration required within 60 days of installation at aciq.com. The installation kit is necessary for the system to function. Be sure to select your desired configuration above. This bundle includes pre-flared copper lines, communication wire, drain line attachment, and all required manuals.
Multi-Position Air Handler Compatibility
Extreme+ Series Multi-Position Air Handler Options
| Capacity | Extreme+ Indoor + Outdoor Model |
|---|---|
| 18,000 BTU | ACIQ-18-PAH + ACIQ-18-HPD |
| 24,000 BTU | ACIQ-24-PAH + ACIQ-24-HPD |
| 30,000 BTU | ACIQ-30-PAH + ACIQ-30-HPD |
| 36,000 BTU | ACIQ-36-PAH + ACIQ-36-HPD |
| 48,000 BTU | ACIQ-48-PAH + ACIQ-48-HPD |
| 60,000 BTU | ACIQ-60-PAH + ACIQ-60-HPD |
Warranty
- 12-Year Compressor Warranty
- 7-Year Parts Warranty (licensed installation required)
- 1-Year Remote Control Warranty
Technical Information
Indoor Unit: ACIQ-18-PAH
- Air Flow: Up to 618 CFM
- Noise: Up to 42.5 dBA
- Electric Heat Strip Capable: 5kW, 8kW, 10kW
- Electrical: 208/230V, 1 Phase, 60 Hz
- Breaker: Max 15A / Min 5.5A
- Dimensions (HxWxD): 49.7" x 17.5" x 21.5"
Outdoor Unit: ACIQ-18-HPD
- Cooling Capacity: 18,000 BTU
- Heating Capacity: 19,000 BTU
- SEER2: 19 | HSPF2: 9.7
- Operating Range: -22°F to 122°F
- Sound: 59 dBA
- Refrigerant: R454B, 25' Precharge
- Dimensions (HxWxD): 26.5" x 35" x 13.5"
- Electrical: 208/230V, 1 Phase, 60 Hz
Certifications
- AHRI Certified
- ETL Listed
- Energy Star for Cold Climate
Manuals & Downloads
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 |
|---|---|
| Power | 230 Volt |
| Mount type | Ducted |
| 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.
