Pioneer / Quantum Ultra
Pioneer Quantum Ultra 12,000 BTU (115V)
Model data is drawn from manufacturer, retailer, and certification sources. Missing specifications remain marked as not published.
1 zoneWall-mountedNot publishedCurrent
Data completeness: 95%
- Last verified
- Jul 18, 2026
SplitAtlas score
not yet rated - data incomplete
- no scoring run is available
1. Summary
Pioneer's Quantum Ultra 12k occupies an interesting middle: sold online at DIY-friendly prices, but its installation manual requires flared connections and system evacuation - which is why our database classifies it as professional-install despite the marketing vibe. On paper it delivers solid certified efficiency and a -13F heating floor on a 115V circuit.
Rated cooling
12,000BTU/hVerified - manufacturer product page
Rated heating
12,400BTU/hVerified - manufacturer product page
2. Best-fit use cases
Value-focused buyers with installer access who want 115V wiring and real winter capability without the DIY-line price premium.
3. Key specifications
- Manufacturer
- Pioneer
- Brand
- Pioneer
- Product line
- Quantum Ultra
- Model number
- WT012ALSI24HLG indoor / YN012ALSI24RPG outdoor
- Indoor unit model
- WT012ALSI24HLG
- Outdoor unit model
- YN012ALSI24RPG
- Number of zones
- 1
- Max indoor units
- not published
- Rated cooling capacity
- 12,000 BTU/hVerified - manufacturer product page
- Rated heating capacity
- 12,400 BTU/hVerified - manufacturer product page
- Voltage
- 110-120VVerified - manufacturer product page
- MCA
- not published - manufacturer specifies 25 A breaker
- Maximum fuse or breaker size
- 25 AVerified - manufacturer technical document
- Breaker needed
- 25 AVerified - manufacturer technical document
- SEER2
- 23 SEER2Verified - manufacturer product page
- EER2
- 13 EER2Verified - manufacturer product page
- HSPF2 (Region 4)
- 10 HSPF2Verified - manufacturer product page
- HSPF2 (Region 5)
- 8.6 HSPF2Verified - manufacturer product page
- COP
- not published
- COP at 47F
- 3.81 COPVerified - manufacturer product page
- COP at 5F
- 2.1 COPVerified - manufacturer product page
- Minimum outdoor heating temperature
- -13 FVerified - manufacturer product page
- Minimum outdoor cooling temperature
- not published
- Maximum outdoor temperature
- 131 FVerified - manufacturer product page
- Indoor noise range
- 46/44/36/32/30 dB(A)Verified - manufacturer product page
- Outdoor noise rating
- 52 dBAVerified - manufacturer product page
- Indoor weight
- 23.1 lbVerified - manufacturer product page
- Outdoor weight
- 58.4 lbVerified - manufacturer product page
- Refrigerant
- R-454BVerified - manufacturer product page
- Refrigerant charge
- not published
- Manufacturer coverage
- not published
- Line-set size
- 1/4 in liquid / 3/8 in suction
- Included line-set length
- 10 ftVerified - manufacturer product page
- Maximum line-set length
- 50 ftVerified - manufacturer technical document
- Max line set per indoor
- not published
- Maximum elevation difference
- 33 ftVerified - manufacturer technical document
- Max height between indoor units
- not published
- Wi-Fi support
- supportedVerified - manufacturer product page
- Energy Star status
- yesVerified - manufacturer product page
- AHRI certification number
- 217048750Verified - manufacturer product page
- Warranty
- 5 years parts / 5 years compressor. Up to 5-year parts plus 5-year compressor, registration within 90 days.
- DIY installation status
- Not published
- Retail price
- $1,163.00
- Installation type
- Wall-mounted
- Available retailers
- Pioneer Mini Split
- Manual links
- WYT24-IMUM-2501.pdf, WYT24-SERM-2501.pdf, WYT012ALSI24RL_SubmittalSheet.pdf, WYT24-BROC-2501.pdf
- Specification sheet
- WYT012ALSI24RL_SubmittalSheet.pdf
- Last verified date
- Jul 18, 2026
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Paid link
Check price at Pioneer Mini Split
$1,163 / Fresh price - checked Jul 18, 2026
4. Strengths
- 115V operation with a -13F published heating floor - a rare combo shared only with the MRCOOL DIY units in our database.
- Solid certified efficiency for the price class.
- Attractive online pricing.
5. Weaknesses
- NOT a DIY install despite the price positioning: the manual requires flare, vacuum, and charge verification - budget for a pro or the skills and tools to do it right.
- Warranty expectations follow qualified installation - an improvised install risks coverage.
- Documentation depth trails MRCOOL and Senville.
6. Climate suitability
- Minimum heating ambient
- -13 FVerified - manufacturer product page
- Rated heating at 5F
- not published
- Rated heating at 17F
- not published
- Rated heating at 47F
- not published
7. Electrical requirements
- Voltage
- not published
- Voltage range
- 110-120VVerified - manufacturer product page
- Phase
- 1Verified - manufacturer product page
- Frequency
- 60 HzVerified - manufacturer product page
- MCA
- not published - manufacturer specifies 25 A breaker
- Breaker needed
- 25 AVerified - manufacturer technical document
- Maximum breaker size
- 25 AVerified - manufacturer technical document
- Maximum fuse size
- not published
- Maximum cooling current
- 8.5 AVerified - manufacturer product page
- Maximum heating current
- 8.4 AVerified - manufacturer product page
- Manufacturer wire notes
- not published
8. Installation considerations
- Liquid line
- 1/4 inVerified - manufacturer technical document
- Suction line
- 3/8 inVerified - manufacturer technical document
- Precharged length
- 25 ftVerified - manufacturer technical document
- Included line-set length
- 10 ftVerified - manufacturer product page
- Maximum line-set length
- 50 ftVerified - manufacturer technical document
- Max line set per indoor
- not published
- Max height between indoor units
- not published
- Indoor dimensions
- 36.5 x 7.625 x 12 inVerified - manufacturer product page
- Outdoor dimensions
- 31.875 x 12 x 21.625 inVerified - manufacturer product page
- Indoor weight
- 23.1 lbVerified - manufacturer product page
- Outdoor weight
- 58.4 lbVerified - manufacturer product page
- Drain size
- not published
9. Operating-cost estimate
not published
10. Comparable models
Frequently asked questions
- Can I install the Pioneer Quantum Ultra 12,000 BTU (115V) myself, or do I need a pro?
- Pioneer Quantum Ultra 12,000 BTU (115V) is built for professional installation: the line set must be flared, evacuated, and charged, which requires EPA-certified refrigerant handling. Installing it outside the manufacturer's requirements can void the warranty, so budget for a qualified HVAC installer.
- Will the Pioneer Quantum Ultra 12,000 BTU (115V) keep heating in a cold winter?
- Rated heating operation extends down to -13 F. Certified heating efficiency is 10 HSPF2. Match that published heating floor against your climate's design temperature - below the low-ambient rating, output can fall off or the system can pause to protect itself.
- What electrical circuit does the Pioneer Quantum Ultra 12,000 BTU (115V) need?
- Published electrical requirements: 110-120V voltage, not published - manufacturer specifies 25 A breaker minimum circuit ampacity, and 25 A maximum breaker or fuse sizing. Confirm the final circuit against the unit nameplate and local code with a licensed electrician.
- How far can the outdoor unit be from the indoor head?
- The published maximum line-set length is 50 ft, and the included line set comes pre-charged for 25 ft. Longer runs than the included set allows typically mean added refrigerant and a pro visit, so measure the planned routing before ordering.
- What warranty does the Pioneer Quantum Ultra 12,000 BTU (115V) carry?
- The manufacturer publishes 5 years parts coverage and 5 years compressor coverage. Registration requirements and proof of qualified installation commonly affect coverage, so read the warranty terms before install day.
11. Data sources
- Pioneer: WYT012ALSI24RL_SubmittalSheet.pdfVerified - manufacturer technical document
Covers Breaker needed, Maximum breaker size, installation_spec.liquid_line_od_in, Liquid line size, installation_spec.max_elevation_diff_ft, installation_spec.max_line_set_length_ft and more
- Pioneer: pioneerminisplit.com Quantum Ultra 12k 115V pageVerified - manufacturer product page
Covers Frequency, Maximum cooling current, Maximum heating current, Phase, Voltage range, Included line-set length and more
- Pioneer/Parker Davis HVAC: WYT24-IMUM-2501 installation manual (parsed 2026-07-18)Verified - manufacturer technical document
Covers system.sales_intent
12. Last updated date
Jul 18, 2026