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  • Multizone Ductless Heat Pump
  • Overview
  • Characteristics
  • Documents
  • Spare Parts
  1. Home
  2. Residential Heating Products
  3. Heat-Pumps and HVAC Systems
  4. Multizone Ductless Heat Pump

SMZ

Multizone Ductless Heat Pump

Performance in every space


With a Multi-B ductless systems, you can connect up to six indoor units to a single outdoor unit to achieve an efficient, versatile, and tailored heating and cooling solution. It independently controls multiple zones through one integrated system, ensuring consistent comfort throughout the home with personalized zoning controls and optimal energy savings.

Use cases

  • Interior use

Spaces

  • Commercial space
  • Restaurant
  • Office

Characteristics

ADVANTAGES
  • New R-454B high-performance gas
  • Greater reliability thanks to newgas leak sensor
  • New technology and machine design — Meet high energy efficiency standards
  • 5 operation modes — Cooling, heating, dehumidifying, fan and auto
  • Can connect up to 6 indoor units
  • Eligible for utilities rebates
NOMINAL CAPACITY
  • 18,000, 27,000, 36,000, 48,000, 55,000 BTU/hr
VOLTAGE
  • 230/208V, 60 Hz, 1-phase
MANUFACTURING

Indoor unit/Wall-Mounted Split

  • Plastic housing, standard white
  • Evaporator fins covered with hydrophilic coating for improved corrosion resistance
  • Washable filters

Indoor unit/Ceiling cassette

  • Plastic housing, standard white
  • Evaporator fins covered with hydrophilic coating for improved corrosion resistance
  • Washable filters
  • Includes a remote control

Indoor unit/Ducted Fan Coil

  • Evaporator fins covered with hydrophilic coating for improved corrosion resistance
  • Washable filters
  • Includes a wall controller

Outdoor unit

  • Variable speed rotary compressor (INVERTER), with PCB control protection. Electronic expansion valve for precise control of refrigerant flow
  • Condenser fins covered with a hydrophilic coating for improved corrosion resistance
  • Quiet axial-flow fan
  • Multi-hole pan with smart heater to prevent ice formation
  • Compressor blanket and preheating technology

Connection piping

  • Minimum piping length of 10 ft (3 m)
  • Flared connections
INSTALLATION

Indoor unit

  • High wall installation with ceiling clearance as low as 5 cm
  • Dual side connection

Outdoor unit

  • Installation on aluminum wall bracket or ground stand (optional)
CONTROL
  • Wireless remote included with wall bracket
  • Wi-Fi option available for the wall unit
  • Set temperature: 16°C to 32°C (61°F to 90°F)
  • Temperature display format: °C or °F
  • Interface for wall unit only
WARRANTY
  • 10-year basic warranty on parts and 10-year basic warranty on the compressor (labor not included)
REBATES
  • Qualifies for rebate programs

Documents

SMZ

Specsheet

PDF

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SMZ

Technical drawings (Indoor unit)

JPG

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SMZ

Technical drawings (Outdoor unit)

JPG

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SMZ

Technical drawings SFCB

JPG

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SMZ

Technical drawings SICB

JPG

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SMZ

User guide

ZIP

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SMZ

Options

PDF

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SMZ

Shop drawings

ZIP

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Spare Parts

SMZ2B1-H18A-O

Download the complete parts list for SMZ2B1-H18A-O

PDF

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SMZ3B1-H27A-O

Download the complete parts list for SMZ3B1-H27A-O

PDF

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SMZ4B1-H36A-O

Download the complete parts list for SMZ4B1-H36A-O

PDF

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SMZ5B1-H48A-O

Download the complete parts list for SMZ5B1-H48A-O

PDF

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SMZ5B1-H55A-O

Download the complete parts list for SMZ5B1-H55A-O

PDF

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SFCB1-H09A-I

Download the complete parts list for SFCB1-H09A-I

PDF

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SFCB1-H12A-I

Download the complete parts list for SFCB1-H12A-I

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SFCB1-H18A-I

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SFCB1-H24A-I

Download the complete parts list for SFCB1-H24A-I

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SICB1-H09A-I

Download the complete parts list for SICB1-H09A-I

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SICB1-H12A-I

Download the complete parts list for SICB1-H12A-I

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SICB1-H18A-I

Download the complete parts list for SICB1-H18A-I

PDF

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SICB1-H24A-I

Download the complete parts list for SICB1-H24A-I

PDF

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Specifications

Performance
OUTDOOR UNIT1 SMZ2B1-H18A-O SMZ3B1-H27A-O SMZ4B1-H36A-O SMZ5B1-H48A-O SMZ5B1-H55A-O
Voltage V 230/208 230/208 230/208 230/208 230/208
Cooling capacity Nominal 5568 (19000) 7912 (27000) 10550 (36000) 13774 (47000) 14946 (51000)
Min. - Max. 1581-8206 (5400-28000) 2110-10862 (7200-37000) 2638-12527 (9000-43000) 3517-16665 (12000-57000) 5568-17223 (19000-59000)
Heating capacity Nominal 5861 (20000) 7913 (27000) 10551 (36000) 14360 (49000) 16119 (55000)
Min. - Max. 1672-7913 (5700-27000) 2465-10551 (8400-36000) 3806-14360 (13000-49000) 5861-16665 (20000-57000) 8190-17223 (28000-59000)
Used cooling power input Nominal 1265 2125 2750 3917 4250
Min. - Max. 400-2250 500-3500 600-4000 800-5400 1200-7400
Used heating power input Nominal 1465 2082 2638 3881 4605
Min. - Max. 350-2300 500-3400 600-3750 800-5200 1200-7400
Cooling rated current A 5.6 9.5 12 17.3 18.5
Heating rated current A 6.5 9.1 11.5 17.3 20.1
MCA A 17.5 30 37 37 39.5
Max. over-current protection (MOCP) A 20 35 40 40 40
SEER2 - 25 23 23 23 22.2
HSPF2 IV - 10.4 10.5 10.7 11 10.5
EER2 BTU/W 15 12.5 13 12 12
COP W/W 4 3.8 4 3.7 3.5
AHRI number 216617670 216617673 216617676 216617679 216617682
ENERGY STAR ✓ ✓ ✓ ✓ ✓

11 Indoor unit and 1 outdoor unit. Note that each unit is individually packaged.

Outdoor Unit - Condenser
SMZ2B1-H18A-O SMZ3B1-H27A-O SMZ4B1-H36A-O SMZ5B1-H48A-O SMZ5B1-H55A-O
Air flow volume CFM 2130.7 2148.4 3037.2 4502.8 4502.8
Sound level dB(A) 61.5 61 65 65 65
Compressor power input W 2045 2765 3265 3430 3430
Compressor RLA A 9.2 17 20.5 27 27
Fan motor power output W 120 120 250 85 85
Fan motor RLA A 1.2 1.3 2.6 2.5 2.5
Refrigerant volume (R-454B) oz. (g) 78.31 (2220) 120.63 (3418) 134.04 (3800) 151.68 (4294) 151.68 (4294)
Net weight lb (kg) 137 (62.3) 168 (76.4) 212 (96.1) 246 (112) 246 (112)
Operating ambient temperature Cooling °C (°F) -30 to 50 (-22 to 122) -30 to 50 (-22 to 122) -30 to 50 (-22 to 122) -30 to 50 (-22 to 122)
Heating °C (°F) -30 to 24 (-22 to 75) -30 to 24 (-22 to 75) -30 to 24 (-22 to 75) -30 to 24 (-22 to 75)
Connection Piping/Refrigerant
Pre-charge length ft. (m) 24.6 (7.5) 24.6 (7.5) 24.6 (7.5) 24.6 (7.5) 24.6 (7.5)
Additional refrigerant charge oz./ft. (g/m) 0.16 (15) 0.16 (15) 0.16 (15) 0.16 (15) 0.16 (15)
Liquid pipe outer diameter in. 3 x 1/4 4 x 1/4 5 x 1/4 6 x 1/4 6 x 1/4
Gas pipe outer diameter in. 3 x 3/8 + 2 x 1/2 3 x 3/8 + 2 x 1/2 3 x 3/8 + 2 x 1/2 4 x 3/8 + 2 x 1/2 4 x 3/8 + 2 x 1/2
Maximum height difference ft. (m) 49.2 (15) 49.2 (15) 49.2 (15) 49.2 (15) 49.2 (15)
Maximum total length ft. (m) 196.8 (60) 262.4 (80) 262.4 (80) 262.4 (80) 262.4 (80)
Indoor Unit - Wall-Mounted Split
SEPB-H09A-I SEPB-H12A-I SEPB-H18A-I SEPB-H24A-I
Dehumidification pt/hr (l/hr) 1.9 (0.9) 2.54 (1.2) 3.17 (1.5) 4.65 (2.2)
Air flow volume UH / H / M / L cfm 441 / 324 / 230 / 177 441 / 324 / 230 / 177 636 / 500 / 359 / 294 812 / 618 / 412 / 318
Sound level UH / H / M / L / S2 dB (A) 47 / 38 / 33 / 21 / 20 47 / 37 / 33 / 22 / 20 50 / 45 / 38 / 32 / 20 55 / 44 / 39 / 27 / 16
Fan motor power output W 20 20 30 58
Fan motor RLA A 0.5 0.5 0.8 1.3
Net weight lb (kg) 23.3 (10.6) 22.93 (10.4) 27.34 (12.4) 43.65 (19.8)
Liquid pipe outer diameter in. 1/4 1/4 1/4 3/8
Gas pipe outer diameter in. 3/8 3/8 1/2 5/8

2Cross-Flow Fan Speeds: (UH) Ultra High (100%) / (H) High (80%) / (M) Medium (60%) / (L) Low (40%) / (S) Silence.

Indoor Unit - Ceiling Cassette
SICB1-H09A-I SICB1-H12A-I SICB1-H18A-I SICB1-H24A-I
Cooling capacity Nominal W (BTU/hr) 2638 (9000) 3517 (12000) 4689 (16000) 6887 (23500)
Heating capacity Nominal W (BTU/hr) 2931 (10000) 3517 (12000) 5568 (19000) 7327 (25000)
Dehumidification pt/hr (l/hr) 1.19 1.98 2.71 3.19
Air flow volume UH / H / M / L cfm 344 / 288 / 231 / 201 / 122 419 / 350 / 256 / 216 / 135 706 / 618 / 530 / 441 / - 854 / 706 / 618 / 500 / -
Sound level UH / H / M / L / S dB (A) 30 / 29 / 28 / 26 33 / 31 / 29 / 26 36 / 34 / 32 / 28 40 / 37 / 35 / 30
Net weight lb (kg) 35.27 (16) 35.27 (16) 35.27 (16) 47.18 (21.4)
Liquid pipe outer diameter in. 1/4 1/4 1/4 3/8
Gas pipe outer diameter in. 3/8 3/8 1/2 5/8
Indoor Unit - Ducted Fan Coil
SFCB1-H09A-I SFCB1-H12A-I SFCB1-H18A-I SFCB1-H24A-I
Cooling capacity Nominal W (BTU/hr) 2638 (9000) 3517 (12000) 5129 (17500) 7034 (24000)
Heating capacity Nominal W (BTU/hr) 2901 (9900) 3517 (12000) 5715 (19500) 7620 (26000)
Dehumidification pt/hr (l/hr) 1.46 2.94 2.94 4.29
Air flow volume UH / H / M / L cfm 344 / 288 / 231 / 201 / 122 419 / 350 / 256 / 216 / 135 706 / 618 / 530 / 441 / - 854 / 706 / 618 / 500 / -
Sound level UH / H / M / L / S dB (A) 30 / 29 / 28 / 26 33 / 31 / 29 / 26 36 / 34 / 32 / 28 40 / 37 / 35 / 30
Net weight lb (kg) 64 (29) 64 (29) 80 (36.3) 80.5 (36.5)
Liquid pipe outer diameter in. 1/4 1/4 1/4 3/8
Gas pipe outer diameter in. 3/8 3/8 1/2 5/8
Accessories
Product Description
SICGA Grille for SICB1-H09A-I, SICB1-H12A-I, SICB1-H18A-I ceiling cassette
SICGB Grille for SICB1-H24A-I ceiling cassette