The MRCOOL Olympus E Star mini-split heat pump condenser is the outdoor half of an E Star single-zone system, built around a DC inverter rotary compressor and R-454B refrigerant. It serves one Olympus indoor unit of the same capacity, from 9,000 to 24,000 BTU/h, and reaches up to 27.4 SEER2 with the 9,000 BTU wall-mount pair while operating in outdoor air down to -22°F.
Buy it on its own to pair with an Olympus ceiling cassette or ducted air handler, or to complete a wall-mount install. Installation is by a licensed HVAC contractor.
Features
Three Indoor Options
Each condenser is listed with the Olympus wall-mount, ceiling cassette or ducted air handler of the same capacity, for example O-ES-18-HP-C-230C-O1 with DUCT-18HP-230B-O.
Wide Operating Range
Cools in outdoor air from -22°F to 122°F and heats down to -22°F, per MRCOOL's submittal.
Inverter Rotary Compressor
The DC inverter compressor modulates output, and the outdoor unit is rated from 56 dBA on the 9,000 and 12,000 BTU sizes to 61.5 dBA on the 24,000.
Electronic Expansion Valve
An EXV meters refrigerant on every size, with an added throttle valve on the 18,000 and 24,000 BTU units.
Gold Fin Coil Protection
MRCOOL's Gold Fin coating helps the coil resist corrosion near the coast.
Long Line Runs
Lines can reach 82' on the 9,000 and 12,000 BTU sizes and 164' on the 24,000, with the factory charge covering the first 24.6'.
Specifications
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Voltage: 208/230V
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Phase: 1
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Frequency: 60 Hz
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Refrigerant: R-454B
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Compressor: Rotary
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Inverter: DC
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ENERGY STAR: Yes
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AHRI Certified: Yes
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UL Listed: Yes
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ETL Listed: Yes
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CSA Listed: Yes
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Color: White
9,000 BTU 230V
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Model: O-ES-09-HP-C-230C-O1
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Cooling Capacity: 9,000 BTU/h
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Heating Capacity: 12,000 BTU/h
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Nominal Tonnage: 0.75 ton
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SEER2: Up to 27.4
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EER2: Up to 15.4
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HSPF2 (Region IV): 12.5
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HSPF2 (Region V): 9.5
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Coverage Area: Up to 400
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Minimum Circuit Ampacity: 15 A
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Max Fuse / Breaker: 15 A
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Refrigerant Charge: 35.27 oz
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Sound Level: 56 dBA
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Max Line Set Length: 82'
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Liquid Line: 1/4"
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Suction Line: 3/8"
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Metering Device: EXV
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Works With: O-09-HP-WMAH-230C-O
DUCT-09HP-230B-O
CASSETTE09HP-230C-O
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Dimensions: 31.69"W x 12.99"D x 21.81"H
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Weight: 72.75 lbs
12,000 BTU 230V
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Model: O-ES-12-HP-C-230C-O1
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Cooling Capacity: 12,000 BTU/h
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Heating Capacity: 12,000 BTU/h
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Nominal Tonnage: 1 ton
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SEER2: Up to 25.4
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EER2: Up to 13.4
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HSPF2 (Region IV): 10.5
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HSPF2 (Region V): 8
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Coverage Area: Up to 550
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Minimum Circuit Ampacity: 15 A
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Max Fuse / Breaker: 15 A
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Refrigerant Charge: 35.27 oz
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Sound Level: 56 dBA
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Max Line Set Length: 82'
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Liquid Line: 1/4"
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Suction Line: 3/8"
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Metering Device: EXV
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Works With: O-12-HP-WMAH-230C-O
DUCT-12HP-230B-O
CASSETTE12HP-230C-O
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Dimensions: 31.69"W x 12.99"D x 21.81"H
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Weight: 72.75 lbs
18,000 BTU 230V
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Model: O-ES-18-HP-C-230C-O1
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Cooling Capacity: 18,000 BTU/h
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Heating Capacity: 18,000 BTU/h
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Nominal Tonnage: 1.5 ton
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SEER2: Up to 21.4
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EER2: Up to 12.5
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HSPF2 (Region IV): 11
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HSPF2 (Region V): 8.5
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Minimum Circuit Ampacity: 19 A
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Max Fuse / Breaker: 20 A
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Refrigerant Charge: 55.38 oz
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Sound Level: 59 dBA
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Max Line Set Length: 98.4'
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Liquid Line: 1/4"
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Suction Line: 1/2"
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Metering Device: EXV + Throttle Valve
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Works With: O-18-HP-WMAH-230C-O
DUCT-18HP-230B-O
CASSETTE18HP-230C-O
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Dimensions: 35.04"W x 13.46"D x 26.5"H
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Weight: 99.87 lbs
24,000 BTU 230V
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Model: O-ES-24-HP-C-230C-O1
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Cooling Capacity: 24,000 BTU/h
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Heating Capacity: 29,000 BTU/h
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Nominal Tonnage: 2 ton
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SEER2: Up to 21
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EER2: Up to 13
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HSPF2 (Region IV): 13.5
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HSPF2 (Region V): 9.8
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Coverage Area: Up to 1050
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Minimum Circuit Ampacity: 24.9 A
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Max Fuse / Breaker: 25 A
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Refrigerant Charge: 63.49 oz
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Sound Level: 61.5 dBA
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Max Line Set Length: 164'
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Liquid Line: 3/8"
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Suction Line: 5/8"
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Metering Device: EXV + Throttle Valve
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Works With: O-24-HP-WMAH-230C-O
DUCT-24HP-230B-O
CASSETTE24HP-230C-O
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Dimensions: 37.24"W x 16.14"D x 31.89"H
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Weight: 130.29 lbs
What's Included
- MRCOOL Olympus E Star outdoor condenser
Installation
Professional installation required. This equipment must be installed by a licensed HVAC contractor (EPA Section 608-certified for any refrigerant work), following MRCOOL's installation manual and all local codes, permits and licensing rules. MRCOOL's limited warranty applies only to units installed that way, and it does not cover installation labor.
Pairs with one Olympus wall-mount, ceiling cassette or ducted air handler of the same capacity. Line sets are not included: sizes are 1/4" x 3/8" (9,000 and 12,000 BTU), 1/4" x 1/2" (18,000 BTU) or 3/8" x 5/8" (24,000 BTU). The factory charge covers 24.6' of line, with a maximum length of 82', 98.4' or 164' and a maximum height difference of 49.2', 65.6' or 82' by size. Power is 208/230V single phase; circuit sizes are in the Specifications tab.
Resources
Shipping, Returns & Warranty
Ships to addresses in the United States only. Shipping cost is calculated at checkout.
Inspect the packaging and the product before you sign. Note any damage or shortage on the delivery receipt, then email photos to support@mycleansupplies.com within 48 hours of delivery so the freight claim can be filed. Damage reported after 48 hours can't be claimed.
MRCOOL handles returns through the store you bought from, so your return comes to us. Unopened, unused MRCOOL equipment can be returned within 21 days of delivery with a return authorization from us. You pay the return shipping, and a restocking fee of up to 20% may be deducted along with payment processing fees. Opened, installed or used equipment and special-order items can't be returned.
MRCOOL's Olympus limited warranty covers parts for 5 years and the compressor for 7 years from the proof-of-purchase date, with no registration required. It applies to systems installed according to MRCOOL's instructions and all applicable codes and permits, and it does not cover labor. Full terms, registration steps and exclusions are in the MRCOOL warranty document under Resources.
Warranty claims. MRCOOL handles warranty claims directly through support.mrcool.com or (270) 366-0457. Some MRCOOL warranties cover the original purchaser only. Systems that aren't DIY need a valid installation invoice to open a claim.
About MRCOOL
MRCOOL designs heating, cooling and water-heating equipment from its home base in Hickory, Kentucky. The range runs from DIY ductless mini-splits, built around MRCOOL's patented pre-charged Quick Connect line sets, through contractor-installed mini-splits, central split systems, packaged units and gas furnaces, to HeatWise water heaters and CoolBlade HVLS fans for warehouses and shops.
Olympus E Star is MRCOOL's contractor-installed single-zone ductless heat pump on R-454B refrigerant, with ENERGY STAR ratings in all four sizes from 9,000 to 24,000 BTU/h. Each O-ES condenser serves one Olympus indoor unit of the same capacity: the wall-mount air handler it is sold with as a system, or an Olympus ceiling cassette or concealed ducted air handler bought separately. For several rooms on one outdoor unit, MRCOOL offers the Olympus Multi-Zone condensers, which use the same indoor heads.
