Pioneer Diamante Pro High-Wall Series 31,500 BTU Ductless Mini Split
Pioneer Diamante Pro High-Wall Series 31,500 BTU Ductless Mini Split is backordered and will ship as soon as it is back in stock.
Manufacturer's Warranty
Manufacturer's Warranty
What's In The Box?
What's In The Box?
Info & Guides
Info & Guides
Pioneer Diamante Pro High-Wall Series 31,500 BTU Ductless Mini Split is backordered and will ship as soon as it is back in stock.
Deliver year-round comfort to larger residential or light-commercial spaces with the Pioneer 31,500 BTU Diamante Pro High-Wall Series ductless mini-split. This high-efficiency heat pump pairs a wall-mounted air handler with a variable-speed inverter compressor to provide precise cooling and heating without the need for ductwork.
Designed for areas up to 1,200 square feet, the system balances performance, low-noise operation, and straightforward installation, making it a practical solution for add-on rooms, remodels, or stand-alone zones where traditional central air is not feasible.
Key Features and Benefits of Pioneer 31,500 BTU Diamante Pro Mini-Split
- Powerful Airflow: The 31,500 BTU capacity is good for heating and cooling larger living rooms, open-concept apartments, or small retail areas, quickly and consistently.
- Inverter Technology: Variable-speed DC inverter technology adjusts output in real time, minimizing temperature swings and lowering energy consumption during part-load operation.
- High Efficiency: 19 SEER2 cooling and 9.0 HSPF2 heating efficiencies help reduce monthly utility costs while meeting modern efficiency standards.
- Quiet Operation: Indoor sound levels as low as 28 dB create a quiet environment that supports conversation, sleep, and focused work.
- Convenient Positioning: Wall-mounted air handler saves floor space and delivers high airflow through an adjustable louver that directs conditioned air where you need it most.
- Eco-Friendly Refrigerant: This model features the eco-friendly R-454B refrigerant, which has a lower global warming potential than other formulas.
- Line Set Included: A 16-foot 1/4 x 5/8" line set is included.
Note: This mini-split air conditioner must be installed by a qualified professional.
All-Season Reliability
The Diamante Pro is built to perform in a wide range of outdoor conditions, keeping you comfortable whether the forecast calls for triple-digit heat or subzero cold. Low ambient cooling protects electronics or server rooms during cool nights, while the cold-climate heat pump maintains full operation down to -13 degrees F. This resilience makes the system a strong choice for mountain cabins, four-season sunrooms, or any application where temperature extremes are common and uninterrupted climate control is essential.
Sylvane’s Expert Take
The Diamante Pro 31,500 BTU mini-split offers a well-rounded blend of capacity, energy efficiency, and cold-weather capability. Its inverter technology keeps operating costs in check, and the low indoor sound profile suits noise-sensitive environments. We appreciate the included installation kit, which simplifies procurement and speeds up job timelines. For customers seeking dependable, duct-free heating and cooling in larger zones, this Pioneer model delivers reliable performance backed by a solid warranty.
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Energy Efficiency Ratio 2 (EER2)9
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Mounting TypeWall
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Number of SpeedsVariable
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Seasonal Energy Efficiency Ratio 2 (SEER2)19.0
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Total Cooling Capacity (BTUs)31500
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Total Heating Capacity (BTUs)33000
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CertificationsAHRI, cETLus
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ColorWhite
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Compressor TypeInverter
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Heat ModeYes
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Installation TypeProfessional Installation
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Line Length Option16 ft
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Maximum Cubic Feet per Minute (CFM) (CFM)847.0
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Maximum Indoor Noise Level (dB)63
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Maximum Operating Temperature - Cooling (degrees F)122
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Maximum Operating Temperature - Heating (degrees F)86
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Minimum Operating Temperature - Cooling (degrees F)5
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Minimum Operating Temperature - Heating (degrees F)-4
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Number of Zones1
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Recommended Coverage Area (sq. ft.)2000
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Refrigerant TypeR-454B
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Zone Cooling Capacity (BTUs)31500
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Zone Heating Capacity (BTUs)33000
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California Residents⚠ WARNING: This product can expose you to chemicals including nickel, which is known to the State of California to cause cancer and reproductive harm. For more information go to www.p65warnings.ca.gov.
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Maximum Cooling Amperage (Amps)15.3
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Maximum Cooling Wattage (W)3370
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Maximum Heating Amperage (Amps)14
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Maximum Heating Wattage (W)3070
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Voltage (V)208-230
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Included Line Length (ft.)16
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Indoor Unit Depth (in.)10.25
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Indoor Unit Height (in.)14.25
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Indoor Unit Weight (lbs.)39.7
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Indoor Unit Width (in.)46.88
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Maximum Line Length (ft.)25
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Outdoor Unit Depth (in.)16.5
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Outdoor Unit Height (in.)31.63
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Outdoor Unit Weight (lbs.)105.8
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Outdoor Unit Width (in.)38.5
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Additional FeaturesRemote Control, Line Set Included, Applicable for Indoor Growing, Pre-charged Refrigerant
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Manufacturer's Warranty5-Year Limited Warranty







