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Extreme Series

ACiQ 3.5 Ton 16.7 SEER2 High Efficiency Central Heat Pump | Inverter | Extreme Series - R454B

SKU ACiQ-42-HPD Air Conditioner Condenser Units16.7 SEER2208-230V
$3,119.99
In StockShips in 1-2 business days
High efficiency. Quiet performance. Easy installation.

A smart, reliable choice for year-round comfort.

Best for:
  • Bedrooms
  • Home Offices
  • Additions
  • Garages
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Cooling
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Heating
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Quiet Inside
Efficient
High Efficiency

Brand Information

ACIQ
Support Number
1-877-909-ACiQ
Official Site
ACIQ Official Site
Product Overview Full product description Read the longer product copy, features, and application notes.
ACiQ
ACiQ 3.5 Ton 16.7 SEER2 High Efficiency Central Heat Pump | Inverter | Extreme Series - R454B

Product Overview

OVERVIEW

Inverter - The ACIQ-42-HPD 3.5 ton Extreme series central inverter heat pump utilizes inverter technology to convert AC power to DC, allowing the compressor inside your condenser to speed up and slow down. This allows the system to self-adjust BTU output based on demand. As the weather changes, so will your system output.

Learning Condenser - Equipped with advanced sensors, this condenser monitors indoor and outdoor air temperature, duct pressure, refrigerant temperature, and overall performance. During the initial startup, it enters a learning mode that optimizes future operations for maximum efficiency by collecting and storing data.

Adaptive Sizing - With its self-adjusting inverter design, the ACIQ-42-HPD can be sized based on your heating needs. Standard heat pumps may cause discomfort during summer when sized for heat, but this unit automatically adjusts to function like a smaller unit, ensuring ideal cooling performance without excess humidity.

Extreme Heat Technology - "Extreme Heat" means extended temperature range heating all the way down to -22°F. Traditional heat pumps cannot produce significant heat below about 30°F outside temperature. Below that threshold, they rely on expensive backup electric heat. The ACIQ-42-HPD uses the inverter to vary the refrigerant flow, allowing for maximum heat extraction during extreme cold temperatures. The backup electric heat supplements the heat pump, and only takes over below -22°F. The heat pump gives 100% at 0°F, and still gives 80% at -22°F, saving you up to 75% on cold weather heating bills.

QUICK FACTS

  • Variable BTU output based on demand: 12,000-42,000 BTU for cooling, 12,000-50,000 for heating
  • R454B refrigerant
  • Inverter heat pump system for ducted applications
  • Efficient cooling from -22°F to 122°F outdoor temperatures
  • Efficient heating from -22°F to 75°F outdoor temperatures
  • Durable gold fin condenser coil coating for longevity
  • Quiet operation, even under high workloads

3.5 Ton, 16.7 SEER2

Boasting an efficiency rating of 16.7 SEER2, the ACIQ-42-HPD provides versatile comfort across a range of climates by providing reliable comfort with a variable output that eliminates short cycling for lasting efficiency. Use our sizing calculator (found ) to determine the demand for your home.


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.

ACIQ IntelliHeat Base Pan Heater Technology

ACiQ Quality Construction

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.

ACiQ Highest Efficiency

ACiQ Longer Warranty

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.

Technical Specifications — ACiQ-42-HPD

sku ACiQ-42-HPD
refrigerant charge 25'
weight 232.360000
manufacturer ACiQ
replaces ACiQ-42-HPB
product features Inverter, Low Ambient Heating, Two Stage Condenser, Variable Speed Condenser
hspf2 9.5
cooling btu 42,000 BTU
heating btu 50,000 BTU
maximum cfm 3037
decibel level (dba) 65
electric heat Heat Pump
refrigerant R454B
seer2 16.7
condenser stages Variable Speed
compressor type Rotary
liquid valve size "3/8""
suction valve size "3/4""
electrical 208/230V 1 Phase 60 Hz
max breaker size 40 Amps
min. breaker size 38 Amps
tonnage 3.5 Ton
btu/tonnage 42,000 BTU/3.5 Ton
min/max outdoor temp for heating -22°F - 75°F
min/max outdoor temp for cooling -22°F - 122°F
ambient temperature range -22°F - 122°F
height "38.4""
width "38.6""
depth "16.3""
warranty 12 Years Compressor and 7 Years Parts with Online Registration
safety information PROPOSITION 65 WARNING
Specs & Documents Product details Open technical specs, manuals, videos, and product documents.

Technical Data

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Product FAQs

Product FAQs

Helpful answers matched to this product, brand, specs, and configuration.
What types of products does ACiQ offer?

ACiQ offers a broad range of heating, cooling, ventilation, thermostat, and water-heating products. Its catalog includes mini splits, central air conditioners and heat pumps, furnaces, air handlers, PTAC systems, mobile-home HVAC equipment, commercial systems, thermostats, ventilation products, and hybrid water heaters. Availability and specifications vary by model.

How can I contact ACiQ technical support or customer service?

ACiQ provides support through its official contact form and by phone at 1-877-909-ACiQ. The published support hours are Monday through Friday, 8:00 a.m. to 5:00 p.m. Have the model number, serial number, and a clear description of the question or problem ready.

What information is needed to register an ACiQ product?

ACiQ’s registration form requests the part number, serial number, purchase date, installation date, customer contact and address information, and installer details, including the installer name, license number, and phone number or other identifying information.

How can I request a replacement part for an ACiQ product?

Submit a request through the official ACiQ Parts Quote form or contact ACiQ parts support. Include the SKU or model number and a clear description of the part needed so the parts team can identify the correct component.

Where can I find manuals and technical documents for an ACiQ product?

Use the official ACiQ Tech Center and select the appropriate product category. ACiQ organizes installation manuals, owner manuals, specification sheets, wiring diagrams, troubleshooting guides, warranty documents, and other technical resources by product family and model.

How do I start an ACiQ warranty claim?

Start with ACiQ’s official warranty claim form. Be prepared to provide the owner’s contact information, the equipment model number, a description of the issue, and any supporting files requested. Additional diagnosis and equipment documentation may be required before the claim is approved.

What diagnosis is required for an ACiQ warranty issue?

ACiQ states that a factory-authorized, EPA-certified contractor must diagnose the equipment. The submission should include the diagnostic procedure, the required part number or part description, and the model and serial numbers. ACiQ may also request the original installation invoice.

Does an ACiQ warranty claim cover labor and shipping costs?

ACiQ’s published warranty-resolution process states that round-trip shipping and labor associated with diagnosis and part replacement are not reimbursed. Coverage can vary by product and jurisdiction, so review the exact warranty certificate for the equipment before proceeding.

How do I register an ACiQ product for warranty coverage?

Register the equipment through ACiQ’s official online warranty registration form. Add each unit being registered and submit the requested equipment, customer, purchase, installation, and installer information. Keep a copy of the completed registration and related purchase and installation records.

How can I check an ACiQ warranty registration or coverage status?

Use ACiQ’s Warranty Finder to look up a registration, check its status, or provide missing information. Have the equipment and owner details available so the record can be matched accurately.

Does every ACiQ product have the same warranty coverage?

No. ACiQ warranty periods and conditions vary by product type and model. Review the warranty certificate listed for the exact equipment and use ACiQ’s warranty resources to confirm the applicable parts, compressor, replacement, registration, and eligibility terms.

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