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N5HP5042A1

N5HP5042A1 is in the certified data.

Its certified full-speed heating output at 5°F is 19,100–19,900 Btu/h, 50–52% of its 47°F rating, depending on the pairing.

American Standard and Trane · central heat pump

N5HP5042A1 is in the certified data as of Sep 19, 2026.

144 certified pairings with 47 different figures. See all

Heating at 47°F

38,000

25,800 at 17°F

19,400 at 5°F

Btu/h, certified

2.18 COP at 5°F

Cooling at 95°F

39,000

Btu/h, certified

EER2 12.0 at 95°F

SEER2 15.5

Heating and cooling by outdoor temperature

Certified heating at 5, 17, and 47°F and cooling at 95°F for N5HP5042A1, by outdoor temperature Heating: 19,400 Btu/h at 5°F, 25,800 Btu/h at 17°F, 38,000 Btu/h at 47°F. Cooling: 39,000 Btu/h at 95°F. The bars start at zero. Median of 3.5-ton central models: 33,000 Btu/h at 5°F, 31,000 Btu/h at 17°F, 44,000 Btu/h at 47°F, 44,000 Btu/h at 95°F. 0 10,000 20,000 30,000 40,000 50,000 Btu/h 19,400 5°F 25,800 17°F 38,000 47°F 39,000 95°F Outdoor temperature (°F)
  • Heating output
  • Cooling output
  • Median of 3.5-ton central models
  • Example heating load
  • Example cooling load
  • Frosting range, 17 to 45°F

This pairing delivers 38,000 Btu/h of heat at 47°F, 25,800 Btu/h at 17°F, and 19,400 Btu/h at 5°F, 51% of its 47°F rating. It delivers 39,000 Btu/h of cooling at 95°F. At 5°F that is 13,600 Btu/h short of the example heating load of 33,000 Btu/h; at 95°F it is 22,000 Btu/h above the example cooling load of 17,000 Btu/h.

Each bar is a separate certified test, drawn at its outdoor temperature, starting at zero. The 47°F figure is at one speed; the 17 and 5°F figures are at full speed. The short dark line on each bar is the median of 3.5-ton central models, one value per model. The shaded 17 to 45°F band is the frosting range: the outdoor coil can frost, and the unit pauses to defrost.

The dashed lines are example loads for a typical area of about 1,400 sq ft where winters reach 5°F: heating runs from 33,000 Btu/h at 5°F to 0 at 65°F, and cooling runs from 0 at 65°F to 17,000 Btu/h at 95°F, at 1,000 sq ft per ton. A house in a hot climate or with large west-facing windows can need twice as much cooling. They are examples, not your building.

Calculate heating and cooling for your house

AHRI certificate 218469721 · listed by Trane · certified Jun 29, 2026 · 4 pairings share these values

All rebate programs and their published thresholds

Certified output and power use

Certified output for the selected pairingThe four bars share one scale. The comparison is with the median of 3.5-ton central models. Heating tests run at 70°F indoors. The cooling test runs at 80°F indoors.
Outdoor temperature Certified outputBtu/h One scale vs class median COPat 5°F
5°Fone compressor speed 19,4005.69 kW −41% 2.18
17°Fone compressor speed 25,8007.56 kW −17% NR
47°Fone compressor speed 38,00011.14 kW −14% NR
95°Fcooling, full load 39,00011.43 kW — NR

EER2 12.0 in that test. SEER2 15.5 over the modeled cooling season.

Power use at each temperature

Electrical input in the 5°F full-speed test
2.61kW
Electrical input in the 95°F cooling test
3.25kW
Seasonal average heating COP
2.37

These exclude backup resistance heat.

Updated Sep 19, 2026 · Methodology

How it compares with other 42,000 Btu heat pumps

3.5-ton central models

This pairing at 5°F
19,400 Btu/h
This unit at 5°F median across its pairings
19,400 Btu/h
Median of 3.5-ton central models at 5°F
33,000 Btu/h
Models in this group
222

This unit is above 9% of them, at number 203 of 222 by heat at 5°F. The middle half of the group runs 20,000 to 40,000 Btu/h.

This size class is defined by cooling capacity, so cooling is not compared here.

Closest models by heat at 5°F

Every 42,000 Btu (3.5-ton) unit, ranked by cooling efficiency, then heating efficiency

Certified values for N5HP5042A1

144 pairings · 144 AHRI certificates

This pairing is the one shown above. Under all pairings, a single figure means every pairing agrees and a range means the pairing decides.

This pairingAll pairings
Heating
Heat output at 47°F one speed 38,000 Btu/h 37,600–39,000 Btu/h
Heat output at 17°F full speed 25,800 Btu/h 25,200–26,200 Btu/h
Heat output at 5°F full speed 19,400 Btu/h 19,100–19,900 Btu/h
Heat output below 5°F NR NR
Cold output 5°F output as a % of the 47°F rating 51%
COP at 5°F full speed 2.18 2.11–2.28
HSPF2 Region IV 8.1 7.8–8.1
Cooling
Cooling capacity at 95°F full-load test 39,000 Btu/h 38,000–41,000 Btu/h
EER2 at 95°F 12.0 11.7–12.0
SEER2 cooling season 15.5 15.2–16.0
Cooling at other temperatures NR NR
Equipment and listing
Refrigerant R-454B
Compressor Single stage
Indoor unit 5PX*C007AS3+TSTAT 33 indoor units
FurnaceA952V100CU5SB 19 furnaces
Cold-climate designation EPA's designation, as published NC NC
ENERGY STAR Most Efficient EPA's designation, as published No On no pairings
Where it is sold United States United States
Model string as certified N5HP5042A1

Pairings, by indoor-unit class

33 indoor units · 144 certified pairings

One row per indoor unit certified with this outdoor unit.

Furnace paired · 8 indoor units

  1. 5PX*C009AS3+TSTAT brand not stated 19,400 Btu/hat 5°F, full speed

    14 pairings, 7 with a furnace · 47°F 38,000 Btu/h · 95°F cooling 40,000 Btu/h · Cold output 51% · COP 2.21

  2. 5PX*C007AS3+TSTAT brand not stated 19,450 Btu/hat 5°F, full speed

    12 pairings, 6 with a furnace · 47°F 38,500 Btu/h · 95°F cooling 39,500 Btu/h · Cold output 51% · COP 2.17

  3. 5TXCC007AS3+TSTAT brand not stated 19,450 Btu/hat 5°F, full speed

    12 pairings, 6 with a furnace · 47°F 38,500 Btu/h · 95°F cooling 39,500 Btu/h · Cold output 51% · COP 2.17

  4. 5PX*B006AS3+TSTAT brand not stated 19,500 Btu/hat 5°F, full speed

    10 pairings, 5 with a furnace · 47°F 38,000 Btu/h · 95°F cooling 38,500 Btu/h · Cold output 51% · COP 2.16

  5. 5TXCB006AS3+TSTAT brand not stated 19,500 Btu/hat 5°F, full speed

    10 pairings, 5 with a furnace · 47°F 38,000 Btu/h · 95°F cooling 38,500 Btu/h · Cold output 51% · COP 2.17

  6. 5PX*CD09AS3+TSTAT brand not stated 19,550 Btu/hat 5°F, full speed

    8 pairings, 4 with a furnace · 47°F 38,000 Btu/h · 95°F cooling 40,000 Btu/h · Cold output 51% · COP 2.15

  7. 5PX*D008AS3+TSTAT brand not stated 19,400 Btu/hat 5°F, full speed

    6 pairings, 3 with a furnace · 47°F 38,500 Btu/h · 95°F cooling 40,000 Btu/h · Cold output 51% · COP 2.18

  8. 5PX*DD10AS3+TSTAT brand not stated 19,300 Btu/hat 5°F, full speed

    6 pairings, 3 with a furnace · 47°F 38,000 Btu/h · 95°F cooling 39,500 Btu/h · Cold output 51% · COP 2.20

Indoor units in the furnace paired class
Indoor unit Brand At 5°FBtu/h · full speed At 47°FBtu/h · one speed At 95°FBtu/h · cooling Cold output% of 47°F rating COP 5°Ffull speed Cold climate Pairings
5PX*C009AS3+TSTAT — 19,400 38,000 40,000 51% 2.21 NC 14
5PX*C007AS3+TSTAT — 19,450 38,500 39,500 51% 2.17 NC 12
5TXCC007AS3+TSTAT — 19,450 38,500 39,500 51% 2.17 NC 12
5PX*B006AS3+TSTAT — 19,500 38,000 38,500 51% 2.16 NC 10
5TXCB006AS3+TSTAT — 19,500 38,000 38,500 51% 2.17 NC 10
5PX*CD09AS3+TSTAT — 19,550 38,000 40,000 51% 2.15 NC 8
5PX*D008AS3+TSTAT — 19,400 38,500 40,000 51% 2.18 NC 6
5PX*DD10AS3+TSTAT — 19,300 38,000 39,500 51% 2.20 NC 6

Air handler · 2 indoor units

  1. 5PX*D010AS3+TSTAT brand not stated 19,350 Btu/hat 5°F, full speed

    8 pairings, 3 with a furnace · 47°F 38,250 Btu/h · 95°F cooling 40,500 Btu/h · Cold output 51% · COP 2.23

  2. 5TXCD010AS3+TSTAT brand not stated 19,350 Btu/hat 5°F, full speed

    8 pairings, 3 with a furnace · 47°F 38,250 Btu/h · 95°F cooling 40,500 Btu/h · Cold output 51% · COP 2.23

Indoor units in the air handler class
Indoor unit Brand At 5°FBtu/h · full speed At 47°FBtu/h · one speed At 95°FBtu/h · cooling Cold output% of 47°F rating COP 5°Ffull speed Cold climate Pairings
5PX*D010AS3+TSTAT — 19,350 38,250 40,500 51% 2.23 NC 8
5TXCD010AS3+TSTAT — 19,350 38,250 40,500 51% 2.23 NC 8

The share is heat output at 5°F divided by the 47°F rating.

Showing 10 of 33 indoor units All 144 certified pairings

Sold as, and units with identical certified values

Brands listing this model number

Other brands that list these model numbers

Model number as listed

  • N5HP5042A1 144 pairings

What affects the price

We don't have prices. These things drive the cost.

  • The size of the unit, and the indoor equipment on the same certificate.
  • Whether existing ductwork is reused, altered, or replaced.
  • The electrical work: a circuit, a disconnect, and sometimes a panel change.
  • Refrigerant line length and how the outdoor unit is mounted.
  • Permits and inspection, which vary by municipality.
  • Removing and disposing of the old equipment.
  • Local labor rates and how busy the season is.
  • Rebates and tax credits, which change and have deadlines.

History and definitions

History

First certified record
Most recent certified record
Measurements reported
Jun 29, 2026
Status
In the certified data

Field definitions

COP
Heat delivered for each unit of electricity used. A COP of 2.5 gives 2.5 times the heat of an electric baseboard heater.
HSPF2
Heating efficiency over a typical season. Higher uses less electricity.
SEER2
Cooling efficiency over a typical season. Higher uses less electricity.
EER2
Cooling output divided by electrical input in the 95°F full-load test, in Btu/h per watt.
Cold output
Heat output at 5°F as a percentage of the 47°F rating.
% of rating at 17°F
Heat output at 17°F as a percentage of the 47°F rating.

NR not in the certified dataNC not cold-climate certifiedSP single pairing onlyVP varies by pairing; see the pairings tableWD withdrawn since the certified data was last read

Cite or print this page

Heat Pump List, “N5HP5042A1 — certified heat output”. Certified figures dated , checked daily.
https://heatpumplist.com/model/n5hp5042a1