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Ameristar 24,000 BTU 19 SEER2 Single Zone Wall Mount Mini Split Heat Pump System - R454B - 230V indoor air handler and outdoor condenser

Ameristar 24,000 BTU 19 SEER2 Single Zone Wall Mount Mini Split Heat Pump System - R454B - 230V

Ameristar| SKU: M5THS1924A11NA + M5MHWUN24A1N0A In Stock

$3,219.18$4,059.3321% off

Payment plans

From $268.26/mo with shop Pay View sample plans

$89.42/mo with Paytomorrow Learn More

Amounts shown are maximums; actual savings depend on income, household size, utility, and program rules. Some programs require installation by a licensed or participating contractor and/or specific equipment efficiency ratings. Rebate data by Rewiring America. Not tax or legal advice — verify with the program before purchase. Questions? Call us at (888) 231-8920.

Line Set Length
Optional accessories

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Pre-order - Estimated shipping: 2 - 4 weeks
Free Delivery Sep 5-10 (Est.)Included
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Protection plan

Use your system worry-free for years to come

  • Comprehensive coverage for mechanical and electrical breakdowns, including power surges
  • Repairs covered 100% for the extended term — labor included, not just parts
  • Coverage for normal wear and tear that affects how the product works
  • Replacement or reimbursement if we can’t repair it
  • $0 deductibles, ever
  • Cancel anytime on a pro-rata basis
  • US-based support and quick claims filing
2 Year Protection Plan · $29Add two years of optional service contract coverage. 5 Year Protection Plan · $59Add five years of optional service contract coverage.

Coverage begins after the manufacturer warranty applies, and runs alongside it for items the factory doesn’t cover. Select a plan above the Add to Cart button to include it with your order.

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Description

Ameristar 24,000 BTU 19 SEER2 Single Zone Wall Mount Mini Split Heat Pump System - R454B - 230V

Deliver efficient, year-round comfort to a single room or open living area with this Ameristar 19 SEER2 ductless mini split heat pump. The matched high-wall system combines inverter-driven heating and cooling with lower-GWP R-454B refrigerant and quiet, space-saving indoor comfort.

What's Included

  • Outdoor condenser: M5THS1924A11NA
  • Indoor wall-mounted air handler: M5MHWUN24A1N0A
  • Wireless remote control

Key Features

  • 19 SEER2 inverter heat pump for efficient heating and cooling
  • Single-zone, high-wall ductless design
  • R-454B refrigerant
  • 208/230V, single-phase electrical supply
  • Heating operation from -4°F to 86°F
  • Professional installation required

System Specifications

Nominal capacity 24,000 BTU
Cooling capacity 23,000 BTU/h
Heating capacity 25,000 BTU/h
SEER2 19
HSPF2 9.5
EER2 12
Voltage 208/230V, 60 Hz, 1 phase
Maximum overcurrent protection 25 A
Refrigerant R-454B
Liquid line 1/4 in.
Gas line 1/2 in.
Recommended coverage 1,000-1,200 Sq Ft.

Indoor Unit Specifications

Model M5MHWUN24A1N0A
Mount type High wall
Dimensions (W x D x H) 43.31 x 8.74 x 13.11 in.

Outdoor Unit Specifications

Model M5THS1924A11NA
Dimensions (W x D x H) 35.83 x 16.54 x 31.50 in.

Installation note: This system uses A2L-classified R-454B refrigerant and must be installed and commissioned by a qualified HVAC technician using procedures and equipment approved for R-454B. A line set and other installation accessories are sold separately unless otherwise noted.

Manuals & Documents

Installer's Guide

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