Klimaire KMHR Hyper Heat Series – Multi-Zone Heat Pump Outdoor Unit R-454B – 208–230V

Supports 2-6 Zone Configurations

KMHR Series – Key Features

  • Available Capacities
    • 19,000 BTU – 58,000 BTU
  • Voltage

    • 208/230V, Single Phase, 60Hz
  • Space-Saving Multi-Port Design
    • Compact side-discharge condenser connects multiple indoor units with independent room control, supporting 2–6 zones for residential and commercial spaces.
  • Compatible Indoor Unit Options

    Mix and match from a variety of indoor unit styles:

    • KSIH Series – Wall-Mounted
    • KTIS Series – Ceiling Cassette
    • KDIP Series – Ducted Recessed
    • KUIR Series – Floor/Ceiling
    • KDIC Series - Air Handler
  • Energy Efficient Performance

    • Up to 21.5 SEER2
    • Up to 13 EER2
    • Up to 11.3 HSPF2
  • All-Season Comfort
    • Cooling: -22°F – 122°F
    • Heating: -22°F – 75°F

Customizable comfort for every
room, designed for 2 to 6 zones.

The KMHR outdoor unit delivers powerful, energy-efficient performance for up to six zones. Equipped
with advanced inverter —cooling in ambient temperatures from -22°F to 122°F and heating from -22°F to 75°F.

It's quiet operation makes it ideal for both residential and light commercial spaces. The compact, space-saving design allows for flexible installation, even in tight outdoor areas. KMHR units are compatible with a full range of indoor unit styles—wall-mounted, ceiling cassette, ducted recessed, floor/ceiling, and central ducted—offering unmatched flexibility for a fully customized comfort solution that fits your space, your needs, and your style.

Install It Yourself - No HVAC Needed

Factory-sealed R-454B EZ-Kuick
Connect line set with secure fittings plus pre-attached plug-in 4-wire
communication cable for true plug-and-play installation.
No vacuum pump. No gauges. No refrigerant handling. No field wiring.

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Multi-Port Outdoor Condenser

Supports 2 to 6 indoor zones, depending on the model selected from the series. Each outdoor unit includes the necessary ports for every connection, making it easy to expand comfort across multiple rooms.



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Smart Inverter Efficiency

Powered by Smart DC Inverter technology, the series delivers up to 21.5 SEER2, 13 EER2, and 11.3 HSPF2—ratings vary by model and configuration.

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Factory Pre-Charged with R-454B

The outdoor unit comes factory pre-charged with next-generation R-454B refrigerant — delivering lower environmental impact and improved efficiency. Faster startup. Reliable performance right out of the box.

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Built-In Cold Climate Protection

Equipped with a base pan heater and crankcase heater, the unit prevents ice build-up and safeguards the compressor for reliable performance in low temperatures.

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Golden Fin, Grille & Valve Protection

Manufactured with a Golden Fin coating to resist rust and corrosion, plus a reinforced grille and secure valve cover for lasting protection and performance.



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Refrigerant Leak Detection

Features continuous monitoring of refrigerant levels and provides alerts if a leak is detected—helping prevent damage, reduce downtime, and keep your comfort uninterrupted.

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7-Year Compressor & 5-Year Parts Warranty

Backed by a 7-year compressor and 5-year parts warranty upon registration. Long-term protection. Proven reliability.

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All-Season Comfort

The outdoor unit delivers efficient performance in outdoor temperatures from -22°F to 122°F for cooling, and -22°F to 75°F for heating—ensuring year-round reliability in a variety of climates.

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Included Accessories

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Drain Hose with Drain Joint & Seal

Includes a flexible drain hose with drain joint and rubber seal for a secure, leak-resistant condensate connection. Designed for proper drainage and reliable installation.

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Anti-Vibration Pad Set (4-Pack)

Set of four heavy-duty rubber pads that reduce vibration and noise while stabilizing the outdoor unit. Protects mounting surfaces and helps keep the system securely in place.

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Flare Adapter Reducers

(Sizes model dependent) — Allows compatibility between outdoor service ports and varying line-set sizes used across different indoor units.

Product Documentation

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KMHR Series - Installation Manual
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Multi-Zone Systems Brochure — 2026 4th Generation
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KMHR-KMIR Multi-Zone Series - Installation Manual - 2026 4th Generation
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KMIR-KMHR - Multi-Zone Series - Service Manual
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KMHR-Series Multi-Zone Combination Rule
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KMHR319-H221-4 Exploded Diagram & Parts List
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KMHR427-H225-4 Exploded Diagram & Parts List
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KMHR536-H224-4 Exploded Diagram & Parts List
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KMHR648-H224-4 Exploded Diagram & Parts List
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KMHR660-H218-4 Exploded Diagram & Parts List
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KMHR319-H221-4 AHRI Certificate - Non-Ducted
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KMHR319-H221-4 AHRI Certificate - Ducted
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KMHR319-H221-4 AHRI Certificate - Mixed
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KMHR427-H225-4 AHRI Certificate - Non-Ducted
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KMHR427-H225-4 AHRI Certificate - Ducted
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KMHR427-H225-4 AHRI Certificate - Mixed
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KMHR536-H224-4 AHRI Certificate - Non-Ducted
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KMHR536-H224-4 AHRI Certificate - Ducted
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KMHR536-H224-4 AHRI Certificate - Mixed
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KMHR648-H224-4 AHRI Certificate - Non-Ducted
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KMHR648-H224-4 AHRI Certificate - Ducted
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KMHR648-H224-4 AHRI Certificate - Mixed
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KMHR660-H218-4 AHRI Certificate - Non-Ducted
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KMHR660-H218-4 AHRI Certificate - Ducted
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KMHR660-H218-4 AHRI Certificate - Mixed
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Customize Your Comfort Zone
Mix & Match Indoor Units

Every room is different—and Klimaire makes it easy to match your cooling and heating style to each space. With flexible multi-zone configurations, KMIR systems support 2 to 6 indoor units, depending on the model and capacity. Klimaire gives you full control to tailor comfort and aesthetics in every zone of your home or business

Mix and match from a variety of indoor unit styles:

Whether you prefer the elegance of a wall-mounted unit, the discretion of ducted systems, or the power of an air handler, Klimaire makes it easy to create a setup that works for you. Whether you're outfitting a cozy home, a modern office, or a light commercial space, Klimaire gives you the flexibility to mix and match indoor units to build a fully personalized solution—zone by zone.

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Enhance Your Setup
with Optional Accessories

Improve installation, protection, and system appearance with accessories designed to complement your Klimaire mini split system.

Essential Accessory:

Compare Outdoor Units
For Your Multi-Zone System

Easily find the right Klimaire KMIR outdoor unit for your setup.
Compare capacities, zone support, efficiency ratings, and compatible
indoor unit styles—all in one place. Choose the unit that fits your space,
performance needs, and number of zones.

  • Compatible Indoor Units
  • Cooling Capacity (Total / Min–Max)
  • design pressure
  • Energy Efficiency
  • Heating Capacity (Total / Min–Max)
  • Liquid / Gas Size
  • max fuse
  • max height difference between ft indoor and outdoor
  • max length per each indoor unit
  • Minimum Circuit Ampacity (MCA)
  • Operational Cooling / Heating Range
  • outdoor air flow
  • outdoor compressor type
  • Outdoor Net / Gross Weight
  • outdoor refrigerant charge
  • Package Dimension (W x D x H)
  • Power Supply
  • Refrigerant Type
  • Sound Levels
  • total maximum piping length per system
  • Unit Dimensions (W × D × H)
  • Zone Capacity
Productvariantdrop
3-Zone- 18,000 BTU Klimaire KMHR Hyper Heat Series - Multi-Zone Heat Pump Outdoor Unit R-454B - 208/230V
4th Generation
Model Number: KMHR319-H221-4
Wall-Mount, Ceiling Cassette, Ducted Recessed, Floor/Ceiling
19,000 BTU(5,400-27,600)
550 / 340 Psig
Up to 21 SEER2 / Up to 10 HSPF2 / Up to 13 EER2
20,000 BTU(5,700-25,400)
3 x 1/4in / 3 x 3/8in
20 A
49.2 ft
98.4 ft
17.5 A
-22°F - 122°F / -22°F - 75°F
2130.7 CFM
ROTARY
137.35 / 148.15 lbs
78.31 oz
37.24 x 16.14 x 31.89 in
208–230V / 1Ph / 60Hz
R-454B
62 dB(A)
196.8 ft
42.91 x 19.68 x 34.84 in
2-3 Zones
Productvariantdrop
4-Zone - 26,000 BTU Klimaire KMHR Hyper Heat Series Multi - Zone Heat Pump Outdoor Unit R-454B - 208/230V
4th Generation
Model Number: KMHR427-H225-4
Wall-Mount, Ceiling Cassette, Ducted Recesse, Floor/Ceiling, Air Handler
27,000 BTU(7,200-33,000)
550 / 340 Psig
Up to 21 SEER2 / Up to 10 HSPF2 / Up to 12 EER2
27,000 BTU(8,400-32,000)
4 x 1/4in / 3 x 3/8in + 1 x 1/2in
35 A
49.2 ft
114.8 ft
30 A
-22°F - 122°F / -22°F - 75°F
2148.4 CFM
ROTARY
168.43 / 179.67 lbs
120.63 oz
37.24 x 16.14 x 31.89 in
208–230V / 1Ph / 60Hz
R-454B
61 dB(A)
262.4 ft
42.91 x 19.68 x 34.84 in
2-4 Zones
Productvariantdrop
5-Zone - 35,000 BTU Klimaire KMHR Hyper Heat Series - Multi-Zone Heat Pump Outdoor Unit R-454B - 208/230V
4th Generation
Model Number: KMHR536-H224-4
Wall-Mount, Ceiling Cassette, Ducted Recessed, Floor/Ceiling, Air Handler
36,000 BTU(9,000-42,000)
550 / 340 Psig
Up to 21.5 SEER2 / Up to 11.3 HSPF2 / Up to 12.2 EER2
36,000 BTU(10,000-44,000)
5 x 1/4in / 3 x 3/8in + 2x1/2in
40 A
49.2 ft
114.8 ft
37 A
-22°F - 122°F / -22°F - 75°F
3037.2 CFM
TWIN-ROTARY
211.86 / 244.71 lbs
134.04 oz
38.58 x 16.34 x 38.39 in
208–230V / 1Ph / 60Hz
R-454B
65 dB(A)
262.4 ft
45.08 x 19.68 x 42.52 in
2-5 Zones
Productvariantdrop
6-Zone - 45,000 BTU Klimaire KMHR Hyper Heat Series - Multi-Zone Heat Pump Outdoor Unit R-454B - 208/230V
4th Generation
Model Number: KMHR648-H224-4
Wall-Mount, Ceiling Cassette, Ducted Recessed, Floor/Ceiling, Air Handler
45,000 BTU(12,000-55,000)
550 / 340 Psig
Up to 21.2 SEER2 / Up to 11 HSPF2 / Up to 12 EER2
49,000 BTU(13,000-55,000)
6 x 1/4in / 4 x 3/8in + 2x1/2in
45 A
49.2 ft
114.8 ft
43 A
-22°F - 122°F / -22°F - 75°F
4502.8 CFM
TWIN-ROTARY
246.47 / 276.68 lbs
151.68 oz
37.48 x 16.34 x 52.48 in
208–230V / 1Ph / 60Hz
R-454B
65 dB(A)
262.4 ft
43.11 x 19.49 x 58.27 in
2-6 Zones
Productvariantdrop
6-Zone - 58,000 BTU Klimaire KMHR Hyper Heat Series - Multi-Zone Heat Pump Outdoor Unit R-454B - 208-230V
4th Generation
Model Number: KMHR660-H218-4
Wall-Mount, Ducted Recessed, Floor/Ceiling
51,000 BTU(19,000-58,000)
550 / 340 Psig
Up to 21.4 SEER2 / Up to 10.7 HSPF2 / Up to 12 EER2
55,000 BTU(20,000 -56,000)
6 x 1/4in / 4 x 3/8in + 2x1/2in
45 A
49.2 ft
114.8 ft
43 A
-22°F - 122°F / -22°F - 75°F
4502.8 CFM
TWIN-ROTARY
246.47 / 276.68 lbs
151.68 oz
37.48 x 16.34 x 52.48in
208–230V / 1Ph / 60Hz
R-454B
65 dB(A)
262.4 ft
43.11 x 19.49 x 58.27 in
2-6 Zones

Where to Purchase

Where to Purchase

Where to Purchase

Where to Purchase

Where to Purchase

ETL
Energy Star
AHRI
Smart DC Inverter
Eco Friendly
7 year compressor warranty
5 year parts warranty