Heat Pumps
Cost-effective heating and cooling for milder climates
If you live in a mild climate, Ameristar heat pumps deliver just what you need for comfort during every season. In summer, they operate as an air conditioner—and when the weather cools off, they blow warm air throughout your home. These high-efficiency, all-electric units offer a practical, two-in-one solution that lets you manage your budget too.
E4HL5
Low Profile Heat Pump

System Features
- 15.2 SEER2
- 8.1 HSPF2
- 1.5 – 5 ton capacity
- 24V Inverter
- Compact design for small installation footprints
- Tier 1 CEE Certified (North & Canada)
- Quiet operation (67db)
E4HL5 Low Profile Heat Pump
Model | Capacity (Tons) | Vapor Line | Dimensions (in) | ||
H | W | D | |||
E4HL5018A1000A | 1.5 | 3/4″ | 31.6 | 35.8 | 14.1 |
E4HL5024A1000A | 2 | 3/4″ | 31.6 | 35.8 | 14.1 |
E4HL5030A1000A | 2.5 | 3/4″ | 31.6 | 35.8 | 14.1 |
E4HL5036A1000A | 3 | 3/4″ | 31.6 | 35.8 | 14.1 |
E4HL5042A1000A | 3.5 | 7/8″ | 52.4 | 37.4 | 14.4 |
E4HL5048A1000A | 4 | 7/8″ | 52.4 | 37.4 | 14.4 |
E4HL5060A1000A | 5 | 7/8″ | 52.4 | 37.4 | 14.4 |
Ameristar Limited Warranty:
5-year limited warranty for functional parts
10-year warranty for functional parts with registration
20-year warranty for heat exchanger
Find out more about the Ameristar Limited Warranty here.
E4HL5 Low Profile Heat Pump Energy and Owner Guides
E4HL5 Low Profile Heat Pump
A4HP4
Heat Pump

System Features
- 14.3 SEER2
- 1.5 – 5 ton capacity
- All-aluminum coil
- Scroll compressor
- Quiet operation (74-76db)
- Smaller size options for tighter spaces
- Pre-painted steel cabinet and base pan
- Assembled in Tyler, Texas
A4HP4 14.3 SEER2 Heat Pumps
Model | Capacity (Tons) | Vapor Line | Dimensions (in) | ||
H | W | D | |||
A4HP4018D1000A | 1.5 | 3/4″ | 28.6 | 23.6 | 23.6 |
A4HP4024D1000A | 2 | 3/4″ | 28.6 | 29.8 | 29.8 |
A4HP4030D1000A | 2.5 | 3/4″ | 28.6 | 34.3 | 34.3 |
A4HP4036D1000A | 3 | 7.8″ | 28.6 | 34.3 | 34.3 |
A4HP4042D1000A | 3.5 | 7/8″ | 28.6 | 34.3 | 34.3 |
A4HP4048D1000A | 4 | 7/8″ | 32.6 | 34.3 | 34.3 |
A4HP4060D1000A | 5 | 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.
A4HP4 Heat Pump Energy and Owner Guides
876.37 KB
876.80 KB
877.90 KB
876.95 KB
877.58 KB
878.21 KB
877.03 KB
877.15 KB
875.71 KB
A4HP4 Heat Pump
A4HP5
Heat Pump

System Features
- 15.2 SEER2
- 1.5 – 5 ton capacity
- All-aluminum coil
- Scroll compressor
- Quiet operation (76db)
- Smaller size options for tighter spaces
- Pre-painted steel cabinet and base pan
- Assembled in Tyler, Texas
A4HP5 15.2 SEER2 Heat Pumps
Model | Capacity (Tons) | Vapor Line | Dimensions (in) | ||
H | W | D | |||
A4HP5018D1000A | 1.5 | 3/4″ | 28.6 | 25.6 | 25.6 |
A4HP5024D1000A | 2 | 3/4″ | 28.6 | 29.8 | 29.8 |
A4HP5030D1000A | 2.5 | 3/4″ | 36.6 | 34.3 | 34.3 |
A4HP5036D1000A | 3 | 3/4″ | 36.6 | 34.3 | 34.3 |
A4HP5042D1000A | 3.5 | 7/8″ | 44.6 | 34.3 | 34.3 |
A4HP5048D1000A | 4 | 7/8″ | 44.6 | 34.3 | 34.3 |
A4HP5060D1000A | 5 | 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.
A4HP5 Heat Pump Energy and Owner Guides
879.05 KB
879.13 KB
880.70 KB
880.98 KB
880.71 KB
880.72 KB
879.12 KB
A4HP5 Heat Pump
A4HP6
Heat Pump

System Features
- 16 SEER
- 1.5 – 5 ton capacity
- All-aluminum coil
- Scroll compressor
- Quiet operation (76db)
- Smaller size options for tighter spaces
- Pre-painted steel cabinet and base pan
- Assembled in Tyler, Texas
A4HP6 16 SEER Heat Pumps
Model | Capacity (Tons) | Vapor Line | Dimensions (in) | ||
H | W | D | |||
A4HP5018D1000A | 1.5 | 3/4″ | 28.6 | 25.6 | 25.6 |
A4HP5024D1000A | 2 | 3/4″ | 28.6 | 29.8 | 29.8 |
A4HP5030D1000A | 2.5 | 3/4″ | 36.6 | 34.3 | 34.3 |
A4HP5036D1000A | 3 | 3/4″ | 36.6 | 34.3 | 34.3 |
A4HP5042D1000A | 3.5 | 7/8″ | 44.6 | 34.3 | 34.3 |
A4HP5048D1000A | 4 | 7/8″ | 44.6 | 34.3 | 34.3 |
A4HP5060D1000A | 5 | 7/8″ | 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.
A4HP6 Heat Pump Energy and Owner Guides
879.05 KB
879.13 KB
880.70 KB
880.98 KB
880.71 KB
880.72 KB
879.12 KB
A4HP6 Heat Pump
M4HP3
Heat Pump

System Features
- Ameristar units are available in 13 SEER (R-410A only) models
- 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 Heat Pumps (R410A Refrigerant)
Model | Tonnage | Sound Rating | SEER | HSPF | Dimensions (in) | ||
H | W | D | |||||
M4HP3018A1000AA | 1.5 | 74 | 13.00 | 7.70 | 24.94 | 21.875 | 21.875 |
M4HP3024A1000AA | 2.0 | 74 | 13.00 | 7.70 | 24.94 | 23.625 | 23.625 |
M4HP3030A1000AA | 2.5 | 74 | 13.00 | 7.70 | 24.94 | 28 | 28 |
M4HP3036A1000AA | 3.0 | 74 | 13.00 | 8.20 | 24.94 | 23.625 | 29.13 |
M4HP3042A1000AA | 3.5 | 76 | 13.00 | 8.20 | 29.88 | 28 | 28 |
M4HP3048A1000AA | 4.0 | 76 | 13.00 | 8.20 | 33.19 | 28 | 28 |
M4HP3060A1000AA | 5.0 | 76 | 13.00 | 8.20 | 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.
M4HP3 Heat Pump Energy and Owner Guides
M4HP4
Heat Pump

System Features
- Ameristar units are available in 14 SEER (R-410A only) models
- 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 Heat Pumps (R410A Refrigerant)
Model | Tonnage | Sound Rating | SEER | HSPF | Dimensions (in) | ||
H | W | D | |||||
M4HP4018C1000AA | 1.5 | 74 | 14.00 | 8.20 | 24.94 | 23.63 | 23.63 |
M4HP4024C1000AA | 2.0 | 74 | 14.00 | 8.20 | 24.94 | 23.63 | 23.63 |
M4HP4030B1000AA | 2.5 | 74 | 14.00 | 8.50 | 24.94 | 28.00 | 28.00 |
M4HP4036B1000AA | 3.0 | 74 | 14.00 | 8.50 | 24.94 | 29.13 | 29.13 |
M4HP4042B1000AA | 3.5 | 76 | 14.00 | 8.50 | 33.19 | 28.00 | 28.00 |
M4HP4048B1000AA | 4.0 | 76 | 14.00 | 8.50 | 33.19 | 28.00 | 28.00 |
M4HP4060B1000AA | 5.0 | 76 | 14.00 | 8.20 | 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.
M4HP4 Heat Pump Energy and Owner Guides
M4HP4 Heat Pump
M4HP6
Heat Pump

System Features
- Ameristar units are available in up to 16 SEER (R-410A only) models
- 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
16 SEER Heat Pumps (R410A Refrigerant)
Model | Tonnage | Sound Rating | SEER | HSPF | Dimensions (in) | ||
H | W | D | |||||
M4HP6018B1000AA | 1.5 | 74 | 16.00 | 8.20 | 24.94 | 23.63 | 23.63 |
M4HP6024B1000AA | 2.0 | 74 | 16.00 | 8.20 | 24.94 | 23.63 | 23.63 |
M4HP6030B1000AA | 2.5 | 74 | 16.00 | 8.50 | 24.94 | 28.00 | 28.00 |
M4HP6036B1000AA | 3.0 | 74 | 16.00 | 8.50 | 24.94 | 29.13 | 29.13 |
M4HP6042B1000AA | 3.5 | 76 | 16.00 | 8.50 | 33.19 | 28.00 | 28.00 |
M4HP6048B1000AA | 4.0 | 76 | 16.00 | 8.50 | 33.19 | 29.13 | 29.13 |
M4HP6060B1000AA | 5.0 | 76 | 16.00 | 8.20 | 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.
M4HP6 Heat Pump Energy and Owner Guides
M4HP6 Heat Pump
4.65 MB
5.86 MB
1.21 MB
1.20 MB
1.20 MB
1.20 MB
1.22 MB
1,013.18 KB
962.62 KB