Cooper & Hunter / Slim Duct
Cooper Hunter Slim Duct 58k Concealed Ducted R-454B 208/230V Mini-Split
The standard-outdoor version of the largest slim-duct head certifies 58,000 BTU of cooling and 60,000 of heating at 17 SEER2 and 9.7 HSPF2, rated to -13F.
It is over a point more efficient in cooling than the hyper version and delivers 3,000 BTU more cooling capacity, at a lower price - so for a warm-climate building this is clearly the better buy. Its 9.7 HSPF2 is the lowest heating efficiency in the batch, so do not plan a winter around it.
1 zoneProfessional installCurrent
Refrigerant generation
R-454B - current-generation refrigerant
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Data completeness: 92%
- Last sourced
- Aug 2, 2026
SplitAtlas score
7.2 / 10
Cooling efficiencyBottom quartile
(17.0 SEER2) among >36k systems
Heating efficiencyBottom quartile
(9.7 HSPF2) among >36k systems
Cold-weather performanceBottom quartile
(66.7% heat retained at 5F; -13 F heating floor) among >36k systems
WarrantyBelow average
(5 yr parts / 7 yr compressor) across the catalogue
Feature setBelow average
(5 verified features) across the catalogue
Documentation & partsBelow average
(6 manuals; spec sheet) across the catalogue
Not evaluated
- Installation accessibility — not applicable (professional install)N/A
professional install - DIY-accessibility not applicable
- Price-to-value — not evaluatedN/A
This is a professionally installed, quote-only system, so we can't score its price. Get an installed quote to compare real cost.
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Key ratings
Buyer review snapshot
Best for / skip if
Skip if
- Top-efficiency cooling is the priority; SEER2 is 17.
Install difficulty
Professional flared-line install
- Electrical: 230V; MCA 42 A; breaker/fuse 45 A.
- Line set: Flared line connections; precharged 25 ft; max 246 ft.
Availability and price context
We could not verify a current retail price for this model. We do not currently have a verified in-stock offer from a retailer we work with when we last checked on 2026-08-02.
Source date
- Model data sourced
- Aug 2, 2026
- Page reviewed
- Aug 2, 2026
- Source-backed records
- 3
- Newest source retrieved
- Aug 2, 2026
Warranty tiers
Warranty: 5 years parts and 7 years compressor as standard.
Strengths
- 17 SEER2 and 58,000 BTU of cooling - better than the hyper version on both.
- 60,000 BTU of heating from a completely concealed system.
- Lower purchase price than the hyper equivalent.
Weaknesses
- 9.7 HSPF2 - the lowest heating efficiency in this batch.
- -13F rating; unsuitable as a cold-climate primary heat source.
- Nearly five tons through a low-static head requires engineered ductwork.
Climate suitability
- Minimum heating ambient
- -13 F[1]
- Rated heating at 5F
- 40,000 BTU/h[2]
- Rated heating at 17F
- 40,000 BTU/h[2]
- Rated heating at 47F
- 60,000 BTU/h[2]
Specifications
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- Manufacturer
- Cooper & Hunter
- Brand
- Cooper & Hunter
- Product line
- Slim Duct
- Model number
- CH-RS60LCDT-HS indoor / CH-R60LCU-230VO outdoor
- Indoor unit model
- CH-RS60LCDT-HS
- Outdoor unit model
- CH-R60LCU-230VO
- Number of zones
- 1
- Max indoor units
- not published
- Rated cooling capacity
- 58,000 BTU/h[2]
- Rated heating capacity
- 60,000 BTU/h[2]
- Voltage
- 230 V[1]
- MCA
- 42 A[1]
- Maximum fuse or breaker size
- 45 A[1]
- Breaker needed
- not published
- SEER2
- 17 SEER2[2]
- EER2
- 10 EER2[2]
- HSPF2 (Region 4)
- 9.7 HSPF2[2]
- HSPF2 (Region 5)
- not published
- COP
- not published
- COP at 47F
- not published
- COP at 5F
- 2.2 COP[2]
- Minimum outdoor heating temperature
- -13 F[1]
- Minimum outdoor cooling temperature
- -13 F[1]
- Maximum outdoor temperature
- 122 F[1]
- Indoor noise range
- not published
- Outdoor noise rating
- 62.5 dBA[1]
- Indoor weight
- not published
- Outdoor weight
- 209.44 lb[1]
- Refrigerant
- R-454B[2]
- Refrigerant charge
- not published
- Manufacturer coverage
- not published
- Line-set size
- 3/8 in liquid / 3/4 in suction
- Included line-set length
- C&H cassette and slim-duct systems are professional-install equipment; the installer supplies the refrigerant line set within published piping limits.
- Maximum line-set length
- 246 ft[1]
- Max line set per indoor
- not published
- Maximum elevation difference
- 98.4 ft[1]
- Max height between indoor units
- not published
- Wi-Fi support
- supported[1]
- Energy Star status
- Not ENERGY STAR certified[2]
- AHRI certification number
- 215864231[2]
- Warranty
- Standard: 5 yr parts / 7 yr compressor (licensed-technician installation and registration terms). 7-year compressor and 5-year parts limited warranty with licensed-technician installation and registration terms.
- Install path
- Professional install
- Retail price
- We do not currently have a verified in-stock offer from a retailer we work with when we last checked on 2026-08-02.
- Available retailers
- not published
- Manual links
- AHRI Active public directory row 215864231, Installation Manual - Medium/High Static Duct, Cooper & Hunter Multi R installation manual, Cooper & Hunter Slim Duct official product pages for CH-RS60LCDT-HS, Owner's Manual - Medium/High Static Duct, Cooper & Hunter support-material submittal for CH-R60LCU-230VO + CH-RS60LCDT-HS
- Specification sheet
- Cooper & Hunter support-material submittal for CH-R60LCU-230VO + CH-RS60LCDT-HS
- Last sourced date
- Aug 2, 2026
Electrical requirements
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- Voltage
- 230 V[1]
- Voltage range
- 208/230V[1]
- Phase
- 1[1]
- Frequency
- 60 Hz[1]
- MCA
- 42 A[1]
- Breaker needed
- not published
- Maximum breaker size
- 45 A[1]
- Maximum fuse size
- 45 A[1]
- Maximum cooling current
- not published
- Maximum heating current
- not published
- Manufacturer wire notes
- Field wiring per C&H support-material submittal and local electrical code.[1]
Installation considerations
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- Liquid line
- 3/8 in[1]
- Suction line
- 3/4 in[1]
- Line connection type
- Flared line connections[1]
- Precharged length
- 25 ft[1]
- Included line-set length
- C&H cassette and slim-duct systems are professional-install equipment; the installer supplies the refrigerant line set within published piping limits.
- Maximum line-set length
- 246 ft[1]
- Max line set per indoor
- not published
- Max height between indoor units
- not published
- Indoor dimensions
- not published
- Outdoor dimensions
- 37.48 x 16.34 x 52.48 in[1]
- Indoor weight
- not published
- Outdoor weight
- 209.44 lb[1]
- Drain size
- not published
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- Guide library
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- Troubleshooting
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- Cooper & Hunter mini split review: is Cooper & Hunter any good?
- The best cold-climate mini splits of 2026
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- Mini split heating capacity in the cold: what your unit actually delivers at 5F
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- How to install a mini split (DIY overview)
- R-32 vs R-454B: the mini split refrigerant change explained
- Mini split not heating
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- Mini split remote not working
- Mini split outdoor unit not running
- Mini split smells bad
- Line sets
- Line-set covers
Frequently asked questions
- Can I install the Cooper & Hunter Slim Duct 58,000 BTU R-454B 208/230V (CH-RS60LCDT-HS / CH-R60LCU-230VO) myself, or do I need a pro?
- Cooper & Hunter Slim Duct 58,000 BTU R-454B 208/230V (CH-RS60LCDT-HS / CH-R60LCU-230VO) 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 Cooper & Hunter Slim Duct 58,000 BTU R-454B 208/230V (CH-RS60LCDT-HS / CH-R60LCU-230VO) keep heating in a cold winter?
- The manufacturer publishes 40,000 BTU/h of heating output at 5F. Rated heating operation extends down to -13 F. Certified heating efficiency is 9.7 HSPF2. Match those numbers against your climate's design temperature - in cold regions, output at 5F matters far more than the nameplate capacity measured at 47F.
- What electrical circuit does the Cooper & Hunter Slim Duct 58,000 BTU R-454B 208/230V (CH-RS60LCDT-HS / CH-R60LCU-230VO) need?
- Published electrical requirements: 230 V voltage, 42 A minimum circuit ampacity, and 45 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 246 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 Cooper & Hunter Slim Duct 58,000 BTU R-454B 208/230V (CH-RS60LCDT-HS / CH-R60LCU-230VO) carry?
- The manufacturer publishes these warranty tiers: Standard: 5 yr parts / 7 yr compressor (licensed-technician installation and registration terms). Registration requirements and proof of qualified installation commonly affect coverage, so read the warranty terms before install day.
Data sources
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- Cooper & Hunter: Cooper & Hunter support-material submittal for CH-R60LCU-230VO + CH-RS60LCDT-HSSourced - manufacturer technical document
Covers Frequency, electrical_spec.guaranteed_voltage_range, Maximum breaker size, Maximum fuse size, Minimum circuit ampacity, Phase and more
- Air-Conditioning, Heating, and Refrigeration Institute: AHRI Active Cooper & Hunter form-factor row 215864231Sourced - AHRI directory
Covers AHRI certification number, performance_spec.cold_climate_designation, Rated cooling capacity, COP at 5F, EER2, Energy Star status and more
- Cooper & Hunter: Cooper & Hunter Multi R installation manual limited warranty sectionSourced - manufacturer technical document
Covers Legacy compressor warranty value, Legacy warranty value, Standard compressor warranty, Standard warranty conditions, Standard parts warranty, Warranty notes
Last updated
Aug 2, 2026