Cooper&Hunter

CH-55MES-230VO

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Variant Price: Base_Price
Standard shipping on all orders
Manufacturer warranty included
Product specifications
Brand Cooper&Hunter
Power Source 208-230V, 1Ph, 60Hz
EER Rating 10.5
SEER Rating 21.3
Type Multi-zone unit
Refrigerant type R410A
BTU 55,000
Package dimensions 43.11x19.49x58.27
Package content
  • Regular Outdoor Unit

Regular Outdoor

The Regular Outdoor unit delivers efficient, customizable comfort with advanced inverter technology. Connect up to five indoor units, each independently controlled and installable at different times to suit your space and schedule.

Extreme Ready

Built for Every Forecast

Reliable in Any Weather

Engineered to endure extreme conditions, this outdoor unit maintains reliable operation in scorching heat, freezing cold, heavy snow, or rain. With durable construction and proven resilience, it keeps your system running strong season after season.

Energy Saver

Precise Temperature Control

Intelligent Power Adjustment

The system continuously adjusts its operation in real time to maintain your preferred temperature with minimal fluctuations. This intelligent control enhances energy efficiency, lowers noise levels, and ensures a steady, comfortable environment throughout the day, delivering reliable performance and improved overall comfort.

Auto Check

Troubleshooting Made Easy

Built-In System Health Checker

The self-diagnostic system continuously monitors the unit’s performance and detects any abnormalities in real time. When an issue arises, it automatically displays a clear error code, allowing for faster diagnosis and quicker repairs—minimizing downtime and simplifying maintenance.

System Type
Regular
Outdoor Model CH-RES09-230VO CH-RES12-230VO CH-RES18-230VO CH-RES24-230VO CH-R36LCU-230VO CH-R48LCU-230VO CH-R60LCU-230VO
Power Supply (V,Ph,Hz) 208/230,1,60 208/230,1,60 208/230,1,60 208/230,1,60 208/230,1,60 208/230,1,60 208/230,1,60
Voltage Range (V) 187-253 187-253 187-253 187-253 187-253 187-253 187-253
Cooling
Rated Capacity (range) (Btu/h) 3,100~11,900 3,100~13,000 7,000~19,000 8,500~28,300 7,900~42,500 11,000~56,500 14,600~63,000
Rated Current (A) 4.7 4.5 6.2 8.3 15.3 21.3 25.6
EER2 (Btu/h) 12.8 11.7 12.5 12.5 10.1 10.0 10.0
SEER2 (Btu/h) 19.5 19.0 20.0 19.0 18.7 17.1 17.0
Heating at 47°F
Rated Capacity (range) (Btu/h) 3,600~14,000 3,700~15,600 5,500~22,000 11,800~35,100 8,100~43,500 11,200~60,500 11,800~67,000
Rated Current (A) 3.6 4.7 7.2 8.7 14.2 19.0 21.0
COP (W/W) 3.66 3.42 3.47 3.64 3.70 3.49 3.70
HSPF4 11.0 10.2 10.5 11.0 10.2 9.8 9.7
HSPF5 8.8 8.0 8.2 8.5 7.8 7.7 7.6
Minimum Circuit Ampacity (A) 12.0 12.0 18.0 24.0 33.0 39.0 42.0
Max. Fuse (Outdoor Unit) (A) 15.0 15.0 20.0 25.0 35 40 45
Outdoor Air Flow (Max.) (CFM) 1,236.1 1,236.1 1,765.8 2,236.7 2,413.3 4,237.9 4,237.9
Outdoor Noise Level (Sound Pressure) (dB(A)) 54.0 55.5 59.0 60.0 63.0 64.0 64.0
Dimension (WxDxH) (inch) 30.12x11.93x21.85 30.12x11.93x21.85 35.04x13.46x26.50 37.24x16.14x31.89 37.24x16.14x31.89 37.48x16.34x52.48 37.48x16.34x52.48
Packing (WxDxH) (inch) 34.92x13.27x24.02 34.92x13.27x24.02 39.17x15.67x29.13 42.91x19.68x34.84 42.91x19.68x34.84 43.11x19.49x57.48 43.11x19.49x58.27
Net/Gross Weight (lbs.) 62.17/67.68 62.17/67.68 92.59/100.31 122.13/132.28 152.34/162.48 208.78/239.86 209.44/240.08
Refrigerant Type/Charge (oz.) R454B/32.45 R454B/32.45 R454B/47.97 R454B/70.55 R454B/91.71 R454B/126.99 R454B/144.62
Refrigerant Precharge Length (ft.) 25 25 25 25 25 25 25
Additional Charge for Each ft. (oz/ft) 0.16 0.16 0.16 0.32 0.32 0.32 0.32
Design Pressure (PSIG) 550/340 550/340 550/340 550/340 550/340 550/340 550/340
Refrigerant Piping Liquid Side/Gas Side (inch) 1/4"/3/8" 1/4"/3/8" 1/4"/1/2" 3/8"/5/8" 3/8"/3/4" 3/8"/3/4" 3/8"/3/4"
Max. Pipe Length (ft.) 82.0 82.0 98.40 164.0 246.00 246.00 246.00
Max. Difference in Level (ft.) 49.2 49.2 65.6 82.0 98.4 98.4 98.4
Ambient Temperature
Cooling (°F) -13~122 -13~122 -13~122 -13~122 -13~122 -13~122 -13~122
Heating (°F) -13~75 -13~75 -13~75 -13~75 -13~75 -13~75 -13~75

Take Control with the App

Install the app to monitor and adjust your HVAC system from your phone at any time.

Device screen

Frequently Asked Questions

Who do you sell to?

In order for the end user to maximize the manufacturers warranties, we recommend that equipment is purchased through and installed by licensed HVAC technicians. Ask us about recommendations for licensed technicians in your area, or search for Cooper & Hunter certified technicians on the Cooper & Hunter website.

What brands do you carry?

We specialize in high-performance brands like Cooper & Hunter, as well as other ductless and mini split systems that meet California's low-GWP and energy compliance standards.

Do you stock equipment locally?

Yes. We stock units and accessories in the Bay Area, ready for local pickup or freight shipping. Inventory may vary — call or text to confirm availability.

Can I get help sizing a system?

Absolutely. We help contractors with equipment selection, line set sizing, refrigerant matchups, and other technical questions. Reach out via phone or email for support.

Do you offer volume discounts?

Yes. We offer contractor pricing and volume breaks for bulk orders. Reach out directly if you're planning a multi-unit install or need project pricing.

Do you help with warranty claims?

Yes, you will need to first reach out to the Cooper & Hunter Technical Support line 1 800-977-0722 to go through troubleshooting, and if it is determined to be a defective unit, we will work with the manufacturer and you as the customer to source you a replacement unit under warranty. If it is determined to need replacement parts, you as the customers will work with Cooper & Hunter to source replacement parts.

Can I buy online?

Not yet. We keep things personal and flexible. Orders are handled by phone, text, or email so we can get you the right gear and pricing without the guesswork.

What makes CoolMan different?

We’re not just a supplier — we’re a partner. We know the ductless business, we understand California codes, and we move fast to help you win jobs and keep clients happy.