EZ-48Z-M5
EZ-48Z-M5 is in the certified data.
Its certified full-speed heating output at 5°F is 29,800 Btu/h8.73 kW, 62% of its 47°F rating (tests at different compressor speeds) across its certified pairings.
1HVAC, DIYCool + 2 more · mini-split heat pump
EZ-48Z-M5 is in the certified data as of Sep 19, 2026.
- 48,000 Btu (4-ton)
- Mini-split
- Variable speed
- US and Canada
Certified heating and cooling
Heating at 47°F
48,00014.07NR
No 47°F rating for this pairing.
36,00010.55NR at 17°F
29,8008.73NR at 5°F
Btu/hkW, certified
1.80NR COP at 5°F
Heating and cooling by outdoor temperature
This pairing delivers 48,000 Btu/h14.07 kW of heat at 47°F, 36,000 Btu/h10.55 kW at 17°F, and 29,800 Btu/h8.73 kW at 5°F, 62% of its 47°F rating. It delivers 48,000 Btu/h14.07 kW of cooling at 95°F. At 5°F that is 12,200 Btu/h3.58 kW short of the example heating load of 42,000 Btu/h12.31 kW; at 95°F it is 27,000 Btu/h7.91 kW above the example cooling load of 21,000 Btu/h6.15 kW.
Each bar is a separate certified test, drawn at its outdoor temperature, starting at zero. The 47°F figure is at normal speed; the 17 and 5°F figures are at full speed. The short dark line on each bar is the median of 4-ton mini-split 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 1,750 sq ft where winters reach 5°F: heating runs from 42,000 Btu/h12.31 kW at 5°F to 0 at 65°F, and cooling runs from 0 at 65°F to 21,000 Btu/h6.15 kW 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.
AHRI certificate 214810567 · listed by 1HVAC · certified Jun 25, 2026 · 4 pairings on 4 certificates share these values
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Threshold comparisons use the unit’s certified figures across its pairings. Programs also set service-area, installation, and product-list requirements.
Certified output and power use
| Outdoor temperature | Certified outputBtu/h | One scale | vs class median | COPat 5°F |
|---|---|---|---|---|
| 5°Ffull speed | 29,8008.73 kW | −29% | 1.80 | |
| 17°Ffull speed | 36,00010.55 kW | −5% | NR | |
| 47°Fnormal speed | 48,00014.07 kW | −2% | NR | |
| 95°Fcooling, full load | 48,00014.07 kW | — | NR |
EER2 11.0 in that test. SEER2 20.5 over the modeled cooling season.
Power use at each temperature
- Electrical input in the 5°F full-speed test
- 4.85kW
- Electrical input in the 95°F cooling test
- 4.36kW
- Seasonal average heating COP
- 2.70
These exclude backup resistance heat.
How it compares with other 48,000 Btu heat pumps
4-ton mini-split models
- This pairing at 5°F
- 29,800 Btu/h8.73 kWNR
- This unit at 5°F median across its pairings
- 29,800 Btu/h8.73 kW
- Median of 4-ton mini-split models at 5°F
- 42,000 Btu/h12.31 kW
- Models in this group
- 321
This unit is above 1% of them, at number 318 of 321 by heat at 5°F. The middle half of the group runs 37,000 to 47,500 Btu/h.
Closest models by heat at 5°F
- M5OG-48HFN1-MAlsetria, Eco Air + 2 more · 33,000 Btu/h
- M5OG-48HFN1-M-LMDV · 33,000 Btu/h
- MULTI5-48HP230BMRCOOL · 33,000 Btu/h
- RUZ-AK48NLMitsubishi Electric · 32,000 Btu/h
- M5OF-48HFN1-MQ1(2)MDV · 30,800 Btu/h
- YVAHP048B21SYork · 29,200 Btu/h
Every 48,000 Btu (4-ton) unit, ranked by cooling efficiency, then heating efficiency
Certified values for EZ-48Z-M5
4 pairings · 4 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 pairing | All pairings | |
|---|---|---|
| Heating | ||
| Heat output at 47°F normal speed | 48,000 Btu/h14.07 kWNR | 48,000 Btu/h14.07 kW |
| Heat output at 17°F full speed | 36,000 Btu/h10.55 kWNR | 36,000 Btu/h10.55 kW |
| Heat output at 5°F full speed | 29,800 Btu/h8.73 kWNR | 29,800 Btu/h8.73 kW |
| Heat output below 5°F | NR | NR |
| Cold output 5°F output as a % of the 47°F rating | 62%NR | |
| COP at 5°F full speed | 1.80NR | 1.80 |
| HSPF2 Region IV | 9.2NR | 9.2 |
| Cooling | ||
| Cooling capacity at 95°F full-load test | 48,000 Btu/h14.07 kWNR | 48,000 Btu/h14.07 kW |
| EER2 at 95°F | 11.0NR | 11.0 |
| SEER2 cooling season | 20.5NR | 20.5 |
| Cooling at other temperatures | NR | NR |
| Equipment and listing | ||
| Refrigerant | R-410A | |
| Compressor | Variable speed | |
| Indoor unit | None listed | None |
| Furnace | No furnace | None |
| Cold-climate designation EPA's designation, as published | NC | NC |
| ENERGY STAR Most Efficient EPA's designation, as published | Yes | On every pairing |
| Where it is sold | US and Canada | US and Canada |
| Model string as certified | EZ-48Z-M5 | |
Pairings, by indoor-unit class
4 certified pairings
One row per indoor unit certified with this outdoor unit.
Ductless indoor
-
None listed (the pairing on screen) 1HVAC 29,800 Btu/h8.73 kWat 5°F, full speed
| Indoor unit | Brand | At 5°FBtu/hkW · full speed | At 47°FBtu/hkW · normal speed | At 95°FBtu/hkW · cooling | Cold output% of 47°F rating | COP 5°Ffull speed | Cold climate | Pairings |
|---|---|---|---|---|---|---|---|---|
| None listed (the pairing on screen) | 1HVAC | 29,8008.73 | 48,00014.07 | 48,00014.07 | 62% | 1.80 | NC | 4 |
Sold as, and units with identical certified values
Brands listing this model number
Other brands that list these model numbers
- Are 1HVAC and DIYCool heat pumps the same?63 shared model numbers
- Are 1HVAC and PolarWave heat pumps the same?52 shared model numbers
- Are 1HVAC and InfinityLiving heat pumps the same?27 shared model numbers
- Are DIYCool and PolarWave heat pumps the same?52 shared model numbers
Model number as listed
- EZ-48Z-M5 4 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.
Product history
- EZ-48Z-M5 first appeared in the certified data between June 2025 and August 2025.
History and definitions
History
- First certified record
- Most recent certified record
- Measurements reported
- Jun 25, 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