Skip to content
Discount Kings — We Sell Everything for Less!!

MRCOOL

MRCOOL DIY Select 1st Gen - R454B - 12K BTU 115V Condenser w/ 11ft Install Kit

DIYS-12-HP-C-115A11-O

12,000 BTU · 17.5 SEER2 · 115V · R-454B

Part of DIY Select – Condensers

Cooling capacity
12,000 BTU1 ton
Efficiency
17.5 SEER29 HSPF2
Power
115V20A breaker
Refrigerant
R-454B
Install
DIYPre-charged, no vacuum

$999.96 each

Not sure about the size? Use the BTU sizing calculator, or call us and we'll size it with you. This is a DIY system: the pre-charged line set connects without a vacuum pump or gauges.

Distributor pricing and stock: call 678-467-5515 or email sales@discountkings.net.

About this product

The MRCOOL® DIY® Select 12K BTU 115V Ductless Heat Pump Single Zone Mini-Split Condenser is designed to make HVAC installation simple and accessible for homeowners. Built for true do-it-yourself installation, it requires no specialized tools, certifications, or prior HVAC experience. Ideal for garages, home offices, studios, and similar spaces, it delivers reliable heating and cooling for areas up to 550 square feet. Despite its DIY®-friendly design, the system delivers strong performance with a 17.5 SEER2 cooling rating and 9 HSPF2-4 heating efficiency, providing consistent, energy-efficient comfort year-round while helping control utility costs. Installation is further simplified with an 11.5-foot Quick Connect® line set that arrives factory pre-charged with environmentally friendly R-454B refrigerant, eliminating the need for vacuum pumps or refrigerant handling. Most components are included, making setup faster and more approachable for first-time installers. Comfort control is easy using the included wireless remote or the MRCOOL® Comfort app, which allows remote temperature control, scheduling, and energy monitoring. Compatibility with Amazon Alexa and Google Assistant adds hands-free convenience. Features like Sleep Mode, Dry Mode, Auto, and a Gold Fin® condenser coating enhance comfort and durability, even in humid or coastal environments. MRCOOL® offers enhanced peace of mind with their 2-year compressor warranty and 1-year parts warranty for homeowners.

Documents & manuals

Specifications

Capacity & efficiency
TypeCondenser (outdoor unit) — heat pump (heats & cools)
SeriesDIY Select
Cooling capacity12,000 BTU
Heating capacity12,000 BTU
Nominal size1 ton
ZonesSingle zone
SEER217.5
EER28.5
HSPF29
Sound level54 dBA
Electrical
Voltage115V
Phase1-phase
Min. circuit ampacity (MCA)19.5 A
Max. breaker (MOP)20 A
Inverter compressorYes
Refrigerant & line set
RefrigerantR-454B
Factory charge21.52 oz
Max. line length75 ft
Liquid line1/4"
Suction line3/8"
InstallationDIY — pre-charged quick-connect line set, no vacuum pump needed
Physical
Dimensions (in)28.35 W × 10.63 D × 19.49 H
Weight54.89 lb
Shipping weight67.24 lb
ColorWhite
Certifications, warranty & ordering
AHRI certifiedYes
Safety listingUL, ETL
Compressor warranty2 years
Parts warranty1 years
UPC840255595674