Air Conditioners
Cool, comfortable, and affordable
When temperatures and humidity are on the rise, Ameristar air conditioners make sure your home stays cool and dry. Built with durable components in a range of cooling capacities, these air conditioning units offer a budget-friendly solution for homes in a wide array of sizes, configurations, and climates.
A4AC3
Air Conditioner

System Features
- 13.4 SEER2
- All-aluminum coils
- Scroll compressors
- Quiet operation (76db)
- Smaller size options for tighter spaces
- Pre-painted steel cabinet and base pan
- Assembled in Tyler, Texas
A4AC3 13.4 SEER2 Air Conditioners
Model | Capacity (Tons) | Vapor Line | Dimensions (in) | ||
H | W | D | |||
A4AC3018D1000A | 1.5 | 3/4″ | 28.6 | 23.6 | 23.6 |
A4AC3023D1000A | 2 | 3/4″ | 28.6 | 23.6 | 23.6 |
A4AC3024D1000A | 2 | 3/4″ | 28.6 | 25.6 | 25.6 |
A4AC3030D1000A | 2.5 | 3/4″ | 28.6 | 25.6 | 25.6 |
A4AC3035D1000A | 3 | 3/4″ | 28.6 | 29.8 | 29.8 |
A4AC3036D1000A | 3 | 3/4″ | 28.6 | 29.8 | 29.8 |
A4AC3042D1000A | 3.5 | 7/8″ | 28.6 | 29.8 | 29.8 |
A4AC3048D1000A | 4 | 7/8″ | 28.6 | 34.3 | 34.3 |
A4AC3060D1000A | 5 | 7/8″ | 36.6 | 34.3 | 34.3 |
All models feature 3/8″ liquid line.
SEER2, or Seasonal Energy Efficiency Ratio, measures how efficiently a unit can cool your home in the summer. The higher the SEER2 number, the less energy you’ll use.
*Registered Limited Warranty terms are applicable if the products are registered within 60 days of installation. Products can be registered online or by phone at 855-260-2975, otherwise Ameristar’s Base Limited Warranty terms will apply. Base Limited Warranty terms can be found online at ameristarhvac.com. Warranties are for residential use only; some restrictions may apply. Ask your installer for full warranty information at the time of purchase.
A4AC3 Air Conditioner Energy and Owner Guides
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A4AC3 Air Conditioner
A4AC4
Air Conditioner

System Features
- 14.3 SEER2
- All-aluminum coils
- Scroll compressors
- Quiet operation (76db)
- Smaller size options for tighter spaces
- Pre-painted steel cabinet and base pan
- Assembled in Tyler, Texas
A4AC4 14.3 SEER2 Air Conditioners
Model | Capacity (Tons) | Vapor Line | Dimensions (in) | ||
H | W | D | |||
A4AC4018D1000A | 1.5 | 3/4″ | 28.6 | 23.6 | 23.6 |
A4AC4023D1000B | 2 | 3/4″ | 32.6 | 23.6 | 23.6 |
A4AC4024D1000A | 2 | 3/4″ | 28.6 | 25.6 | 25.6 |
A4AC4029D1000A¹ | 2.5 | 3/4″ | 32.6 | 29.8 | 29.8 |
A4AC4030D1000A¹ | 2.5 | 3/4″ | 28.6 | 29.8 | 29.8 |
A4AC4036D1000A | 3 | 3/4″ | 32.6 | 29.8 | 29.8 |
A4AC4042D1000A | 3.5 | 7/8″ | 28.6 | 34.3 | 34.3 |
A4AC4048D1000A | 4 | 7/8″ | 28.6 | 34.3 | 34.3 |
A4AC4060D1000A | 5 | 7/8″ | 36.6 | 34.3 | 34.3 |
All models feature 3/8″ liquid line.
SEER2, or Seasonal Energy Efficiency Ratio, measures how efficiently a unit can cool your home in the summer. The higher the SEER2 number, the less energy you’ll use.
*Registered Limited Warranty terms are applicable if the products are registered within 60 days of installation. Products can be registered online or by phone at 855-260-2975, otherwise Ameristar’s Base Limited Warranty terms will apply. Base Limited Warranty terms can be found online at ameristarhvac.com. Warranties are for residential use only; some restrictions may apply. Ask your installer for full warranty information at the time of purchase.
¹2.5T models utilize a rotary compressor.
A4AC4 Air Conditioner Energy and Owner Guides
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A4AC4 Air Conditioner
A4AC5
Air Conditioner

System Features
- 15.2 SEER2
- All-aluminum coils
- Scroll compressors
- Quiet operation (76db)
- Smaller size options for tighter spaces
- Pre-painted steel cabinet and base pan
- Assembled in Tyler, Texas
A4AC5 15.2 SEER2 Air Conditioners (R410A Refrigerant)
Model | Tonnage | vapor line | Dimensions (in) | ||
H | W | D | |||
A4AC5018D1000A | 1.5 | 3/4″ | 28.6 | 23.6 | 23.6 |
A4AC5024D1000A | 2.0 | 3/4″ | 28.6 | 25.6 | 29.8 |
A4AC5030D1000A | 2.5 | 3/4″ | 36.6 | 29.8 | 29.8 |
A4AC5036D1000A | 3.0 | 3/4″ | 32.6 | 29.8 | 29.8 |
A4AC5042D1000A | 3.5 | 7/8″ | 44.6 | 34.3 | 34.3 |
A4AC5048D1000A | 4.0 | 7/8″ | 44.6 | 34.3 | 34.3 |
A4AC5060D1000A | 5.0 | 7/8″ | 44.6 | 34.3 | 34.3 |
All models feature 3/8″ liquid line.
SEER2, or Seasonal Energy Efficiency Ratio, measures how efficiently a unit can cool your home in the summer. The higher the SEER2 number, the less energy you’ll use.
*Registered Limited Warranty terms are applicable if the products are registered within 60 days of installation. Products can be registered online or by phone at 855-260-2975, otherwise Ameristar’s Base Limited Warranty terms will apply. Base Limited Warranty terms can be found online at ameristarhvac.com. Warranties are for residential use only; some restrictions may apply. Ask your installer for full warranty information at the time of purchase.
A4AC5 Air Conditioner Energy and Owner Guides
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A4AC5 Air Conditioner
A4AC6
Air Conditioner

System Features
- 16 SEER
- All-aluminum coils
- Scroll compressors
- Quiet operation (76db)
- Smaller size options for tighter spaces
- Pre-painted steel cabinet and base pan
- Assembled in Tyler, Texas
16 SEER Air Conditioners (R410A Refrigerant)
Model | Tonnage | vapor line | SEER | Dimensions (in) | ||
H | W | D | ||||
A4AC6018A1000A | 1.5 | 3/4″ | 16 | 28.6 | 23.6 | 23.6 |
A4AC6024A1000A | 2.0 | 3/4″ | 16 | 28.6 | 25.6 | 29.8 |
A4AC6030A1000B | 2.5 | 3/4″ | 16 | 28.6 | 29.8 | 29.8 |
A4AC6031A1000A | 2.5 | 3/4″ | 16 | 36.6 | 29.8 | 29.8 |
A4AC6036A1000A | 3.0 | 3/4″ | 16 | 32.6 | 29.8 | 29.8 |
A4AC6037A1000A | 3.0 | 3/4″ | 16 | 36.6 | 34.3 | 34.3 |
A4AC6042A1000A | 3.5 | 7/8″ | 16 | 44.6 | 34.3 | 34.3 |
A4AC6042B1000A | 4.0 | 7/8″ | 16 | 44.6 | 34.3 | 34.3 |
A4AC6060B1000A | 5.0 | 7/8″ | 15 | 44.6 | 34.3 | 34.3 |
All models feature 3/8″ liquid line.
SEER, or Seasonal Energy Efficiency Ratio, measures how efficiently a unit can cool your home in the summer. The higher the SEER number, the less energy you’ll use.
*Registered Limited Warranty terms are applicable if the products are registered within 60 days of installation. Products can be registered online or by phone at 855-260-2975, otherwise Ameristar’s Base Limited Warranty terms will apply. Base Limited Warranty terms can be found online at ameristarhvac.com. Warranties are for residential use only; some restrictions may apply. Ask your installer for full warranty information at the time of purchase.
A4AC6 Air Conditioner Energy and Owner Guides
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A4AC6 Air Conditioner
M4AC3
Air Conditioner

System Features
- Ameristar 13 SEER units meeting Regional Efficiency Standards required for sale in northern U.S. and Canadian locations are available in R‑410A models only
- 1.5 – 5 ton models available
- Painted, galvanized steel cabinets resist rust and stand up to weather
- The compact design and small footprint are ideal for homeowners with limited yard space
- Units operate quietly, with a maximum sound level of 76 decibels
- 24V low‑voltage control provides added safety
13 SEER Air Conditioners (R410A Refrigerant)
Model | Tonnage | Sound Rating | SEER | Dimensions (in) | ||
H | W | D | ||||
M4AC3018B1000NA | 1.5 | 74 | 13.00 | 24.94 | 21.88 | 21.88 |
M4AC3024B1000NA | 2.0 | 74 | 13.00 | 24.94 | 21.88 | 21.88 |
M4AC3030B1000NA | 2.5 | 74 | 13.00 | 24.94 | 29.13 | 29.13 |
M4AC3036B1000NA | 3.0 | 74 | 13.00 | 24.94 | 23.63 | 23.63 |
M4AC3042B1000NA | 3.5 | 76 | 13.00 | 33.19 | 29.13 | 29.13 |
M4AC3043B1000NA | 3.5 | 76 | 13.00 | 33.19 | 28.00 | 28.00 |
M4AC3048B1000NA | 4.0 | 76 | 13.00 | 29.88 | 28.00 | 28.00 |
M4AC3060B1000NA | 5.0 | 76 | 13.00 | 33.19 | 29.13 | 29.13 |
All models feature 3/8″ liquid line.
SEER, or Seasonal Energy Efficiency Ratio, measures how efficiently a unit can cool your home in the summer. The higher the SEER number, the less energy you’ll use.
*Registered Limited Warranty terms are applicable if the products are registered within 60 days of installation. Products can be registered online or by phone at 855-260-2975, otherwise Ameristar’s Base Limited Warranty terms will apply. Base Limited Warranty terms can be found online at ameristarhvac.com. Warranties are for residential use only; some restrictions may apply. Ask your installer for full warranty information at the time of purchase.
M4AC3 Air Conditioner Energy and Owner Guides
M4AC3 Air Conditioner
M4AC4
Air Conditioner

System Features
- Ameristar 14 SEER units are available in R‑410A models only
- 1.5 – 5 ton models available
- Painted, galvanized steel cabinets resist rust and stand up to weather
- The compact design and small footprint are ideal for homeowners with limited yard space
- Units operate quietly, with a maximum sound level of 76 decibels
- 24V low‑voltage control provides added safety
14 SEER Air Conditioners (R410A Refrigerant)
Model | Tonnage | Sound Rating | SEER | Dimensions (in) | ||
H | W | D | ||||
M4AC4018D1000A | 1.5 | 74 | 14.00 | 24.94 | 21.88 | 21.88 |
M4AC4024D1000A | 2.0 | 74 | 14.00 | 24.94 | 23.63 | 23.63 |
M4AC4030D1000A | 2.5 | 74 | 14.00 | 24.94 | 28.00 | 28.00 |
M4AC4036D1000A | 3.0 | 74 | 14.00 | 24.94 | 29.13 | 29.13 |
M4AC4042D1000A | 3.5 | 76 | 14.00 | 33.19 | 28.00 | 28.00 |
M4AC4048D1000A | 4.0 | 76 | 14.00 | 33.19 | 28.00 | 28.00 |
M4AC4060C1000A | 5.0 | 76 | 14.00 | 33.19 | 29.13 | 29.13 |
All models feature 3/8″ liquid line.
SEER, or Seasonal Energy Efficiency Ratio, measures how efficiently a unit can cool your home in the summer. The higher the SEER number, the less energy you’ll use.
*Registered Limited Warranty terms are applicable if the products are registered within 60 days of installation. Products can be registered online or by phone at 855-260-2975, otherwise Ameristar’s Base Limited Warranty terms will apply. Base Limited Warranty terms can be found online at ameristarhvac.com. Warranties are for residential use only; some restrictions may apply. Ask your installer for full warranty information at the time of purchase.
M4AC4 Air Conditioner Energy and Owner Guides
M4AC6
Air Conditioner

System Features
- Ameristar up to 16 SEER units are available in R‑410A models only
- 1.5 – 5 ton models available
- Painted, galvanized steel cabinets resist rust and stand up to weather
- The compact design and small footprint are ideal for homeowners with limited yard space
- Units operate quietly, with a maximum sound level of 67 decibels
- 24V low‑voltage control provides added safety
16 SEER Air Conditioners (R410A Refrigerant)
Model | Tonnage | Sound Rating | SEER | Dimensions (in) | ||
H | W | D | ||||
M4AC6018B1000AA | 1.5 | 74 | 16.00 | 24.94 | 23.63 | 23.63 |
M4AC6024B1000AA | 2.0 | 74 | 16.00 | 24.94 | 28.00 | 28.00 |
M4AC6030B1000AA | 2.5 | 74 | 16.00 | 24.94 | 29.13 | 29.13 |
M4AC6036B1000AA | 3.0 | 74 | 16.00 | 33.19 | 29.13 | 29.13 |
M4AC6042B1000AA | 3.5 | 76 | 1600 | 33.19 | 29.13 | 29.13 |
M4AC6048B1000AA | 4.0 | 76 | 16.00 | 33.19 | 29.13 | 29.13 |
M4AC6060A1000AA | 5.0 | 76 | 15.00 | 33.19 | 29.13 | 29.13 |
All models feature 3/8″ liquid line.
SEER, or Seasonal Energy Efficiency Ratio, measures how efficiently a unit can cool your home in the summer. The higher the SEER number, the less energy you’ll use.
*Registered Limited Warranty terms are applicable if the products are registered within 60 days of installation. Products can be registered online or by phone at 855-260-2975, otherwise Ameristar’s Base Limited Warranty terms will apply. Base Limited Warranty terms can be found online at ameristarhvac.com. Warranties are for residential use only; some restrictions may apply. Ask your installer for full warranty information at the time of purchase.