What is the SEER2 rating of the Trane 5DCZ5036A1?

The Trane 5DCZ5036A1 is rated at up to 15.2 SEER2 and 11.5 EER2 for cooling and up to 8.1 HSPF2 for heating. The exact figure depends on the indoor unit it is paired with.

Is the Trane 5DCZ5036A1 good for cold climates?

It is not cold-climate certified: none of its matchups meet the ENERGY STAR cold-climate criteria (a COP of at least 1.75 at 5°F among other limits). In places with frequent sub-zero nights, pick a cold-climate 3-ton model.

How much does the Trane 5DCZ5036A1 cost to run per year?

At its rated efficiency it costs about $1,091-$2,692 a year in electricity in large U.S. cities, depending on climate and local rates - for example $1,314 in Phoenix and $2,225 in Minneapolis. The calculator on this page works it out for your city and compares it with your current system.

3-ton packaged heat pump · 5DCZ5

Trane 5DCZ5036A1

Below average cooling efficiency and average heating efficiency for a 3-ton packaged heat pump, but not rated for cold climates.

Ranks #11 of 22 3 ton packaged heat pumps for cooling efficiency, and costs about $1,148 a year to run in a mixed climate like Atlanta.

SEER2: 15.2 Cooling efficiency over a season
Below average · beats 24%
HSPF2: 8.1 Heating efficiency over a season
Average · beats 62%
EER2: 11.5 Cooling efficiency on a 95°F day
Average · beats 60%
Heat at 5°F: 17,600 BTU/h52% of its 47°F output
Very good · beats 73%

A good fit if…

You want a certified 3-ton packaged heat pump at a typical efficiency level.

Think twice if…

You often see nights below 0°F - it is not cold-climate certified.
Cooling cost matters most - its SEER2 is below average for packaged heat pumps.

Calculate my running cost

Details

Specifications3 ton, R-454B

General
Brand	Trane
Also sold as	American Standard
Outdoor unit model	5DCZ5036A1
Series	5DCZ5
Type	Packaged heat pump
Nominal size	3 ton
CompressorVariable-speed units run longer at low power	Two-stage
Refrigerant	R-454B
Connected (smart) capable	No
On the market since	December 2, 2024
Last certified	September 30, 2026
Cooling
SEER2Seasonal efficiency, higher is better	15.2 (range 15.2)
EER2Efficiency at 95°F outdoors	11.5
Cooling capacity	35,400 BTU/h
Heating
HSPF2Seasonal efficiency, higher is better	8.1
Capacity at 47°F	33,800 BTU/h
Capacity at 17°F	21,800 BTU/h
Capacity at 5°F	17,600 BTU/h
COP at 5°F2.0 = twice as efficient as a space heater	2.00
ENERGY STAR cold climate	No

Heating output as it gets colder52% kept at 5°F

Every heat pump delivers less heat as the outdoor temperature drops. Certified output of its best matchup 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 unit	SEER2	EER2	HSPF2	Heat @5°F	AHRI ref.
-	15.2	11.5	8.1	17,600	216574912
-	15.2	11.5	8.1	17,600	216574913

Yearly running cost in 10 large cities$1,091-$2,692

Phoenix, AZ$1,314/yr
Miami, FL$1,091/yr
Houston, TX$1,176/yr
Atlanta, GA$1,148/yr
Los Angeles, CA$1,108/yr
New York, NY$2,692/yr
Chicago, IL$2,175/yr
Denver, CO$1,800/yr
Seattle, WA$1,100/yr
Minneapolis, MN$2,225/yr

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

Questions4

What is the SEER2 rating of the Trane 5DCZ5036A1?: The Trane 5DCZ5036A1 is rated at up to 15.2 SEER2 and 11.5 EER2 for cooling and up to 8.1 HSPF2 for heating. The exact figure depends on the indoor unit it is paired with.
Is the Trane 5DCZ5036A1 good for cold climates?: It is not cold-climate certified: none of its matchups meet the ENERGY STAR cold-climate criteria (a COP of at least 1.75 at 5°F among other limits). In places with frequent sub-zero nights, pick a cold-climate 3-ton model.
How much does the Trane 5DCZ5036A1 cost to run per year?: At its rated efficiency it costs about $1,091-$2,692 a year in electricity in large U.S. cities, depending on climate and local rates - for example $1,314 in Phoenix and $2,225 in Minneapolis. The calculator on this page works it out for your city and compares it with your current system.
What refrigerant does the Trane 5DCZ5036A1 use?: It uses R-454B.

Running cost and savings

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

Heat pump $1,287/yrYou save $512/yrSee details ↓

1. Where you live

StateCityElectricity ¢ per kWh

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.

Cooling hours full-load hours per yearHeating hours full-load hours per year

2. The heat pump Trane 5DCZ5036A1

Find a model (fills in the ratings below)

SEER2 cooling efficiencyHSPF2 heating efficiencyCooling capacity BTU/hHeating capacity BTU/h

3. What it replaces

Current heatingFurnace efficiency (AFUE %)Gas price, $/thermCurrent coolingOld AC rating SEER2 (10 ≈ 15+ years old)

4. Price replace the example with your quote

Installed price, $Rebates and incentives, $ utility, state

Heat pump, per year: $1,287
Current system, per year: $1,799
You save per year: $512
Payback: 26.4 years
Net after 10 years: -$8,380

Cooling $820Heating $467Electricity used: 8,045 kWhSaved vs. a minimum-efficiency heat pump: $89

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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See all 22 3 ton packaged heat pumps, ranked

Source: ENERGY STAR Certified Heat Pumps (U.S. EPA), certification of September 30, 2026. How we use the data.