HVAC Rated

4-ton central heat pump · TZP Series

Thermal Zone TZPLV482PA

Below average cooling efficiency and average heating efficiency for a 4-ton central heat pump, and certified for cold climates.

Ranks #269 of 319 4 ton central heat pumps for cooling efficiency, and costs about $1,560 a year to run in a mixed climate like Atlanta.

SEER2
15.6 Cooling efficiency over a season
Below average · beats 17%
HSPF2
9.4 Heating efficiency over a season
Average · beats 64%
EER2
8.2 Cooling efficiency on a 95°F day
Below average · beats 1%
Heat at 5°F
46,500 BTU/h92% of its 47°F output
Below average · beats 20%

A good fit if…

  • Your winters get properly cold - it is ENERGY STAR cold-climate certified, with 46,500 BTU/h at 5°F.
  • You want steady temperatures and quiet running - the compressor varies its speed.

Think twice if…

  • Cooling cost matters most - its SEER2 is below average for central heat pumps.
  • You want the newest refrigerant - it uses R-410A, which is being phased down.

Calculate my running cost

Details

Specifications4 ton, R-410A
General
BrandThermal Zone
Outdoor unit modelTZPLV482PA
SeriesTZP Series
TypeCentral heat pump
Nominal size4 ton
CompressorVariable-speed units run longer at low powerContinuously variable
RefrigerantR-410A
Connected (smart) capableNo
On the market sinceFebruary 28, 2024
Last certifiedJune 9, 2026
Cooling
SEER2Seasonal efficiency, higher is better15.6 (range 15.2-15.6)
EER2Efficiency at 95°F outdoors8.2-10.0
Cooling capacity45,000-47,000 BTU/h
Heating
HSPF2Seasonal efficiency, higher is better9.2-9.4
Capacity at 47°F50,000-55,000 BTU/h
Capacity at 17°F36,000-37,000 BTU/h
Capacity at 5°F46,000-46,500 BTU/h
COP at 5°F2.0 = twice as efficient as a space heater1.80-1.90
ENERGY STAR cold climateYes
Heating output as it gets colder92% kept at 5°F

Every heat pump delivers less heat as the outdoor temperature drops. Certified output of its matchup with TZHVLE4821JA at the standard test temperatures, in BTU/h:

Certified matchups2 indoor units

The same outdoor unit scores differently with each indoor unit. Ask your installer for the AHRI reference number of the exact system you are quoted.

Indoor unitSEER2EER2HSPF2Heat @5°FAHRI ref.
TZHVLE4821JA · cold climate15.68.29.446,000211126512
MAC-60HWDN1-MN0 · cold climate15.210.09.246,500213885871
Yearly running cost in 10 large cities$1,415-$3,713

At each state's average electricity price and the city's typical heating and cooling hours.

Questions5
What is the SEER2 rating of the Thermal Zone TZPLV482PA?
The Thermal Zone TZPLV482PA is rated at up to 15.6 SEER2 and 8.2 EER2 for cooling and up to 9.4 HSPF2 for heating. The exact figure depends on the indoor unit it is paired with; across its 2 certified matchups SEER2 ranges from 15.2-15.6.
Is the Thermal Zone TZPLV482PA good for cold climates?
Yes. At least one certified matchup meets the ENERGY STAR cold-climate criteria, delivering up to 46,500 BTU/h at 5°F with a COP of 1.90, so it is still 1.9 times as efficient as electric resistance heat at that temperature.
How much does the Thermal Zone TZPLV482PA cost to run per year?
At its rated efficiency it costs about $1,415-$3,713 a year in electricity in large U.S. cities, depending on climate and local rates - for example $1,734 in Phoenix and $3,095 in Minneapolis. The calculator on this page works it out for your city and compares it with your current system.
Which indoor units work with the Thermal Zone TZPLV482PA?
ENERGY STAR lists 2 certified combinations for this outdoor unit. The highest-rated ones use TZHVLE4821JA, MAC-60HWDN1-MN0.
What refrigerant does the Thermal Zone TZPLV482PA use?
It uses R-410A. R-410A is being phased down under the EPA AIM Act, and new systems are moving to R-454B and R-32.

Running cost and savings

Pre-filled with this model. Pick your city and what you heat with today; everything else is optional.

Heat pump $1,716/yrYou save $839/yrSee details ↓
1. Where you live
Adjust heating and cooling hours

Filled in from your city's climate. Change them if you run the system much more or less than usual.

2. The heat pump Thermal Zone TZPLV482PA
3. What it replaces
4. Price replace the example with your quote
Heat pump, per year
$1,716
Current system, per year
$2,554
You save per year
$839
Payback
20.9 years
Net after 10 years
-$9,115

Cooling $1,061Heating $655Electricity used: 10,724 kWhSaved vs. a minimum-efficiency heat pump: $262

Estimates use the unit's rated SEER2 and HSPF2, full-load hours derived from NOAA 1991-2020 degree days, average residential electricity prices from the U.S. EIA (12 months to July 2026) and fuel prices from EIA (2025 for natural gas, week of 2026-10-05 for propane and heating oil). Very cold days that need backup heat are not modelled. Federal minimum for comparison: 14.3 SEER2 / 7.5 HSPF2.

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Source: ENERGY STAR Certified Heat Pumps (U.S. EPA), certification of June 9, 2026. How we use the data.