Refer to individual listings within each of the above sections, for specific page references for:
Product Nomenclature, Features and Benefits, Product Performance Data, Dimensional Specifications,
Clearance Specifications, Electrical Wiring, Condensate Removal, Indoor Unit Combinations.
PRODUCT OVERVIEW
SUPERIOR DESIGNS PROVIDE EASY SOLUTIONS TO COMPLEX PROBLEMS
GREE Ductless Multi Zone systems provide quiet comfort and energy ecient heating and cooling in up to
five dierent rooms – without ductwork. For most residential and light commercial applications, this is the ideal
solution to balance comfort, eciency and ease of installation. This Inverter-driven system oers Seasonal
Energy Eciency Ratings (SEER) up to 16. With individual room control and variable speed compressor
operation, comfort is boosted throughout your home or oce, while utility bills are held in check.
Gree’s exclusive G-10 Inverter technology powers the twin rotary compressor inside the Multi Zone
outdoor compressor section. The G-10 Inverter constantly adjusts the compressor speed to maintain
a comfortable room temperature. This saves energy, reduces outdoor noise and maintains a steady
room temperature by eliminating the harsh starts and stops of conventional systems.
When laying out a new project, you’ll appreciate the flexibility of Gree’s Multi Zone Systems. A single outdoor unit
can simultaneously power up to five indoor units while eliminating expensive ductwork. Without those ducts, your
installation is simpler, faster and more cost-eective. And the flexibility doesn’t stop there, as you can also mix
and match your choice of Wall Mount, Ceiling Cassette, Concealed Duct, Universal Floor/Ceiling and Mini Floor
Console indoor units to create a unique heating and cooling system to perfectly fit any project.
No pipe sweating
No sweating is needed for the pipe connection
between the indoor and outdoor units. All
piping connections are flared to simplify and
ease the piping installation.
Simple Wiring
No special or hard-to-find communication
wire is needed between the indoor and
outdoor units. The system uses common
14-4 AWG stranded copper THHN 600V
wire. The system’s communication is ready
as soon as the electrical wiring between the
indoor and outdoor units is complete.
High Lift Design
Gree’s High Lift design allows for extended
piping length, up to 262 feet total, as well as
50 feet of vertical lift from the condensing
units. This allows for greater flexibility in the
layout of the system.
Outdoor Unit
Power
Supply
1st Branching
Section
Indoor Unit
Transmission System
From Outdoor Unit to
the Indoor Unit:
82ft
82ft
Between Indoor Units:
Height Dierence
50ft
and Outdoor Unit:
50ft
Between Indoor Unit
Height Dierence
Allows up to 262 feet of pipe length
Energy Saving
Multi Zone systems allow each room to be individually controlled. Only those rooms requiring air
conditioning (or heating) are cooled (or heated), and all of it is accomplished without ductwork.
In addition, Gree’s G-10 inverter technology reduces energy waste, maximizes eciency and
achieves up to 16 SEER.
2
PRODUCT OVERVIEW
Self-Diagnostics System
Each indoor and outdoor unit continuously runs
a series of multi-point diagnostic tests on the
system, to automatically scan for unacceptable
operating conditions or malfunctions. If such
conditions occur, the system takes corrective
action or stops. The fault code will be shown
on the indoor, outdoor and wired controller displays.
Problems and system status are displayed with
comprehensive diagnostic codes to simplify system
troubleshooting and shorten repair times.
Flexible Design
Gree’s Multi Zone systems have many advantages
for both the property owner and the installer.
Up to five indoor units, powered by a single
outdoor unit, results in flexible zoning solutions
for almost any application. Various styles of
indoor units may be mixed and matched in any
combination to create a unique, multiple zone
heating and cooling system. Choose from Wall
Mount, Ceiling Cassette, Slim Duct, Universal
Floor/Ceiling and Mini Floor Console indoor units.
All are lightweight and compact enough to be
installed on the wall or in any ceiling space.
Diagnostic
Code
E1
E2
E3
E4
E5
E6
E7
E9
F4
Malfunction
Compressor High Pressure Protection
Indoor Coil Anti-Freeze Protection
Low Pressure Protection
High Discharge Temperature Protection
Compressor High Temperature Protection
Indoor/Outdoor Communication Failure
Heating & Cooling Modes Conflict
Condensate Water Too High
Outdoor Coil Sensor Failure
One outdoor unit
can power up to
5 indoor units.
Intelligent Control
Gree’s Multi Zone components use state-of-the
art intelligent controls to generate the ultimate
in room comfort. G-10 Inverter technology
delivers the exact level of required capacity (from
10% to 100%) to maintain room temperature and
humidity in the comfort range. The optimized PID
controls maintain the room temperature within
less than ±1.0°F of the room setpoint temperature.
The result is a virtually constant room temperature
without the typical fluctuations that occur with a
conventional fixed speed ON/OFF system.
Ductless Saves Money
Realize energy savings by eliminating heat loss
from inecient and leaky ductwork. The average
ducted air distribution system could reduce
overall system eciency by up to 30 percent.
Eliminating ductwork allows you to downsize
equipment while upsizing performance.
Cooling
Gree Inverter Control System
Conventional Fixed Speed System
Each +Multi heat pump is powered by Gree’s energy ecient G-10 Inverter and a variable speed compressor. These units can
heat and cool up to five zones without distribution boxes, and all oer the G-10 advantages of energy savings, noise reduction
and room temperature consistency. Each outdoor coil also features a corrosion-resistant Gold Fin coating to withstand corrosive
environments and to further promote energy eciency.
FEATURES AND BENEFITS
High Eciency G-10 Inverter
The G-10 Inverter uses a broad range of variable frequencies to drive the compressor, marking the
highest level of inverter control technology available today. Unlike conventional technology that
generally regulates room temperature by running at maximum capacity and then shutting o
completely, G-10 Inverter technology eliminates these harsh starts/stops. This cutting edge functionality
results in quicker arrival at desired temperatures and superior maintenance of consistent comfort
levels. Higher eciency and significant energy savings? Yes, it yields those too.
Heat Pump Advantage
Multi Zone heat pumps, powered by the G-10 Inverter, provide the same heating capacity as electric
heat, while using as little as 1/3 the electricity.
Intelligent Defrost
The Intelligent Defrost function increases room comfort and saves energy by eliminating unnecessary
defrost cycles. In heating mode, the control system monitors the outdoor coil for frost buildup,
and the system switches to defrost mode only when frost buildup is actually detected. This avoids
unnecessary and wasteful defrosts.
Time Guard
Among the system’s many safeties is a Time Guard function to prevent rapid cycling of the compressor.
A protective three-minute time delay restricts compressor restarts after shuto.
Gold Fin Condenser
The system’s corrosion-resistant Gold Fin condenser coating (1500hr salt spray rating) is made with
a gold-colored anti-corrosion epoxy. This technology maintains excellent heat transfer properties
while extending coil life against damage from salt air and salt water in seacoast installations.
6
FEATURES AND BENEFITS
Low Voltage Start Up
Having stable electrical power is not always an option. The Gree Multi Zone units will operate from
170v to 265v which is suitable for unstable power supply areas.
Self-Diagnosis
With an on-board computer using real-time diagnostics, the Gree Multi Zone system helps to
prolong its own life. The automatic diagnosis feature continuously scans for unacceptable operating
conditions or malfunctions. If such conditions occur, the system takes corrective action or stops.
Fault codes are shown on the unit display to facilitate easy troubleshooting and repair.
Agency Listings
All systems are listed with AHRI (Air conditioning, Heating, and Refrigeration Institute) and are
ETL Certified per standards.
7/5 Year Limited Warranty
Enjoy one of the most comprehensive warranties in the industry. Seven (7) years
on compressor and Five (5) years on all parts.
Ratings are based on: Cooling Standard: 80°F (26.7°C) db, 67°F (19.4°C) wb air entering indoor unit and 95°F (35°C) db air entering
outdoor unit. Heating Standard: 70°F (21.1°C) db air entering indoor unit and 47°F (8.3°C) db, 43°F (6.1°C) wb air entering outdoor unit.
2. Ratings are based on 25 ft. (7.62 m) of interconnecting refrigerant lines.
3. All system ratings are based on fan coil units operating at high fan speed. Consult Physical Data tables for air flows at selected fan speeds.
Legend:
EER - Energy Eciency Ratio
HSPF - Heating Seasonal Performance Ratio
SEER - Seasonal Energy Eciency Ratio
30
,400
(7,500-36,000) 5 °F 80 °F
NUMBER OF PORTS
MODEL NUMBER BRAND
MULTI18HP230V1AO EXV 2
MULTI24HP230V1AO EXV 3
MULTI30HP230V1AO EXV 4
MULTI36HP230V1AO EXV 4
FOR INDOOR UNITS
MULTI42HP230V1AO EXV 5
9
+Multi Outdoor Units
AIR FLOW DATA
Outdoor Unit
MODEL NUMBER
MULTI18HP230V1A 1,530
MULTI24HP230V1A 1,530
MULTI30HP230V1A 1,530
MULTI36HP230V1A 2,177
MULTI42HP230V1A 3,237
SOUND DATA
Outdoor Unit
MODEL NUMBER SOUND POWER SOUND PRESSURE
MULTI18HP230V1A 66 dBA 56 dBA
MULTI24HP230V1A 66 dBA 56 dBA
MULTI30HP230V1A 66 dBA 56 dBA
MULTI36HP230V1A 69 dBA 59 dBA
AIR FLOW (CFM)
MULTI42HP230V1A 68 dBA 58 dBA
Note:
1. Sound pressure ratings are estimated sound pressure measurements, 3 feet from unit.
2. Sound power ratings are per AHRI 270 and AHRI 350.
PRODUCT WEIGHT
MODEL NUMBER
MULTI18HP230V1A 95 lbs. 106 lbs.
MULTI24HP230V1A 135 lbs. 146 lbs.
MULTI30HP230V1A 153 lbs. 165 lbs.
MULTI36HP230V1A 161 lbs. 172 lbs
MULTI42HP230V1A 225 lbs. 247 lbs.
PRODUCT WEIGHT
NET OPERATING GROSS SHIPPING
10
REFRIGERATION SPECIFICATIONS & DATA
Refrigerant Charge
MODEL NUMBER
MULTI18HP230V1A R-410A 48 oz. 33 ft. 0.2 oz./ft.
MULTI24HP230V1A R-410A 78 oz. 98 ft. 0.2 oz./ft.
MULTI30HP230V1A R-410A 78 oz. 131 ft. 0.2 oz./ft.
MULTI36HP230V1A R-410A 102 oz. 131 ft. 0.2 oz./ft.
MULTI42HP230V1A R-410A 169 oz. 164 ft. 0.2 oz./ft.
TYPE
REFRIGERANT
FACTORY
SYSTEM
CHARGE
MAX TOTAL PIPE
LENGTH W/O ADDING
REFRIGERANT
ADDITIONAL
CHARGE
LEVEL
PIPING LENGTH REQUIREMENTS
L = L1
L2
+++
L
S
L
=L1 + L2 + ......L
TOTAL
n
...Ln
Refrigerant Piping Lengths
IN PIPE LENGTH
M
MODEL NUMBER
PER INDOOR
UNIT (Ln)
MULTI18HP230V1A 10 ft. 33 ft. 66 ft.
MULTI24HP230V1A 10 ft. 66 ft. 230 ft.
MULTI30HP230V1A 10 ft. 66 ft. 230 ft.
MULTI36HP230V1A 10 ft. 82 ft. 230 ft.
MULTI42HP230V1A 10 ft. 82 ft. 262 ft.
MAX PIPE
LENGTH PER
INDOOR UNIT (L
)
n
MAX TOTAL PIPE
LENGTH PER
INDOOR UNIT (L
TOTAL
)
11
+Multi Outdoor Units
PIPING HEIGHT REQUIREMENTS
H2
H1
L1
L2
L3
Refrigerant Piping Height
MAX ELEVATION
MODEL NUMBER
MULTI18HP230V1A 33 ft. 16 ft.
MULTI24HP230V1A 66 ft. 25 ft.
MULTI30HP230V1A 66 ft. 25 ft.
MULTI36HP230V1A 82 ft. 25 ft.
MULTI42HP230V1A 82 ft. 25 ft.
BETWEEN OUTDOOR &
INDOOR UNITS (H1)
MAX ELEVATION
BETWEEN
INDOOR UNITS (H1)
...Ln
12
ELECTRICAL DATA
Outdoor Unit
RATED POWER
MODEL NUMBER
SUPPLY
(volt-phase-hz)
MULTI18HP230V1A 208/230v-1ph-60hz 187-253 1.7 1.6
MULTI24HP230V1A 208/230v-1ph-60hz 187-253 3.1 2.8
MULTI30HP230V1A 208/230v-1ph-60hz 187-253 3.5 2.9
MULTI36HP230V1A 208/230v-1ph-60hz 187-253 4.3 3.6
MULTI42HP230V1A 208/230v-1ph-60hz 187-253 4.4 4.6
VOLTAGE
RANGE
(volts)
RATED INPUT POWER
(KW)
COOLING HEATING
Outdoor Unit
MODEL NUMBER
MULTI18HP230V1A7.6 7.513 20
MULTI24HP230V1A13.5 12.42030
MULTI30HP230V1A 15.3 12.62645
COOLINGHEATING
RATED INPUT CURRENT (amps)
MIN CIRCUIT
AMP (MCA)
MAX FUSE
SIZE (amps)
MULTI36HP230V1A19.2 15.82845
MULTI42HP230V1A19.5 20.52950
Outdoor Unit
MODEL NUMBER
MULTI18HP230V1A9.6270.5 1/1260
MULTI24HP230V1A14.7450.6 1/1260
MULTI30HP230V1A19.6450.6 1/1260
MULTI36HP230V1A 21.0450.7 1/8120
MULTI42HP230V1A 21.5671.11/6140
Legend: RLA – Rated Load Amps HP – Horse Power
RLA (amps) LRA (amps)
RLA (amps) HP INPUT POWER
COMPRESSOR
OUTDOOR FAN
(watts)
13
+Multi Outdoor Units
DIMENSIONAL SPECIFICATIONS
Model No: MULTI18HP230V1A 18,000 BtuH
Suction/Gas Line Port Size
Port A 3/8-in OD Flared
Port B 3/8-in OD Flared
Liquid Line Port Size
Port A 1/4-in OD Flared
Port B 1/4-in OD Flared
Model No: MULTI24HP230V1A 24,000 BtuH
Suction/Gas Line Port Size
Port A 3/8-in OD Flared
Port B 3/8-in OD Flared
Port C 3/8-in OD Flared
Liquid Line Port Size
Port A 1/4-in OD Flared
Port B 1/4-in OD Flared
Port C 1/4-in OD Flared
14
DIMENSIONAL SPECIFICATIONS
Model No: MULTI30HP230V1A 30,000 BtuH
Suction/Gas Line Port Size
Port A 3/8-in OD Flared
Port B 3/8-in OD Flared
Port C 3/8-in OD Flared
Port D 3/8-in OD Flared
Liquid Line Port Size
Port A 1/4-in OD Flared
Port B 1/4-in OD Flared
Port C 1/4-in OD Flared
Port D 1/4-in OD Flared
Model No: MULTI36HP230V1A 36,000 BtuH
Suction/Gas Line Port Size
Port A 3/8-in OD Flared
Port B 3/8-in OD Flared
Port C 1/2-in OD Flared
Port D 5/8-in OD Flared
Liquid Line Port Size
Port A 1/4-in OD Flared
Port B 1/4-in OD Flared
Port C 1/4-in OD Flared
Port D
3/8-in OD Flared
15
+Multi Outdoor Units
DIMENSIONAL SPECIFICATIONS
Model No: MULTI42HP230V1A 42,000 BtuH
Suction/Gas Line Port Size
Port A 3/8-in OD Flared
Port B 3/8-in OD Flared
Port C 1/2-in OD Flared
Port D 1/2-in OD Flared
Port E 5/8-in OD Flared
Liquid Line Port Size
Port A 1/4-in OD Flared
Port B 1/4-in OD Flared
Port C 1/4-in OD Flared
Port D 1/4-in OD Flared
Port E
3/8-in OD Flared
16
MINIMUM OUTDOOR CLEARANCE SPECIFICATIONS
The unit installation must meet or exceed the following minimum clearances for proper operation.
A
BD
C
Air Outlet
Outdoor Unit Minimum Distance
A 20 in
B 24 in
C 78 in
D 12 in
E 20 in
Air Inlet
E
17
+Multi Outdoor Units
ELECTRICAL WIRING
The main power is supplied to the outdoor unit. System must be on a single dedicated circuit. Use appropriate
wire size and circuit breaker (or fuse) size for proper system overcurrent protection. Follow all local building
codes and NEC (National Electrical Code) regulations.
Interconnecting Cable Wiring Diagram
The indoor units are powered by the outdoor unit. The interconnecting cable between the outdoor and indoor
units must be a 14/4 AWG stranded copper conductors THHN 600V unshielded wire. The interconnecting cable
should not be buried underground and must be recognized by UL or ETL and CSA certified.
Note: Use shield cable if installation is in close proximity of RF and EMI transmitting devices.
18
ELECTRICAL WIRING
Local codes may require a disconnect switch within sight of the indoor unit. For these installations, use
a DFS Disconnect Switch Accessory Kit (Part No: DFS-SWITCH-A) to break wires going to the N(1), 2, 3,
terminals on the indoor unit, as shown in the wiring diagram below:
Interconnecting Cable with Disconnect Switch Wiring Diagram
CONDENSATE REMOVAL
Install condensate drain to bottom of outdoor unit to safely and eectively route condensate water to a
safe location. Use a flexible condensate drain hose to fit over the factory 5/8-inch (16mm) drainage port.
The high wall indoor units have an internal condensate trap. Adding an external trap is not required.
All condensate drains must meet local codes and regulations. If adequate gravity drainage cannot be
provided, a field-installed condensate pump must be used. Refer to manufacturer’s installation instructions,
specifications and operating details supplied with condensate pump.
19
+Multi Outdoor Units
INDOOR UNIT COMBINATIONS
SELECTION CRITERIA
When selecting a variable speed system, match the system capacity to the calculated load of the building.
Since a variable speed system can accommodate a wide range of loads, it is important to understand the
percentage of time that the system will be required to run at both maximum and minimum load points.
Generally there will be more load diversification in residential applications (shifting from low load to high
load). Commercial applications tend to be more steady during normal daytime hours, and go to low load
levels after hours. The tables below are guidelines for selecting the proper size.
Model No: MULTI18HP230V1A 18,000 BtuH
Cooling Capacity (BtuH)
INDOOR UNITS
COMBINATIONS
9K 9,000 5,118~11,940 9,000
12K 12,000 6,824~15,000 12,000
9K+9K 18,000 7,000~21,000 9,000 9,000
9K+12K 21,000 7,100~22,000 9,000 12,000
12K+12K 24,000 7,200~22,000 12,000 12,000
RATED SYSTEM
CAPACITY
(BtuH)
CAPACITY RATING
(MIN – MAX)
(BtuH)
INDOOR
UNIT A
(BtuH)
INDOOR
UNIT B
(BtuH)
Heating Capacity (BtuH)
INDOOR UNITS
COMBINATIONS
9K 9,500 5,460~15,360 9,500
12K 13,000 6,150~16,400 13,000
9K+9K 19,000 8,530~22,600 9,500 9,500
9K+12K 22,500 8,530~22,600 9,500 13,000
RATED SYSTEM
CAPACITY
(BtuH)
CAPACITY RATING
(MIN – MAX)
(BtuH)
INDOOR
UNIT A
(BtuH)
INDOOR
UNIT B
(BtuH)
12K+12K 26,000 8,530~22,600 13,000 13,000
Note: It is critical to size the outdoor unit for the entire building load and each indoor unit for its individual zone load.
Capacity data is based on the following conditions:
Cooling Nominal Test Conditions Heating Normal Test Conditions
Indoor: 80°F DB/67°F WB Indoor: 70°F DB/60°F WB
Outdoor: 95°F DB/75°F WB Outdoor: 47°F DB/43°F W