Gree GWH12KF-A3DNB1A, GWH12KF-D3DNB1C, GWH24KG-D3DNB1A, GWH09KF-D3DNB1C, GWH18KG-D3DNB1C Installation Manual

DUCTLESS INVERTER

HEAT PUMP

INSTALLATION MANUAL

Models:
GWH09KF-A3DNB1A
GWH12KF-A3DNB1A
GWH09KF-D3DNB1C
GWH12KF-D3DNB1C
GWH18KG-D3DNB1C
GWH24KG-D3DNB1A

1

Thank you for choosing a
Gree Rio Ductless Heat Pump
for your customer.

Please read this installation manual carefully before installing and
starting up the Rio System. Take a moment to fill out the product
and installation form on the back cover. Retain both the manual
and installation record for future reference.

Contents

• Safety Precautions 2

• System Requirements 4

• Suggested Tools 5

• Site Instructions 6

• Dimensions 7

• Indoor Unit 9

• Outdoor Unit 12

• Refrigerant Piping 13

• Power and Wiring 16

• Vacuum Testing 19

• Start-up 21

• Troubleshooting 22

2

SAFETY PRECAUTIONS

Please read the following before installation.

Recognize safety information. This is the safety-alert symbol. When you see this
symbol on the unit and in instructions or manuals, be alert to the potential for personal
injury. Understand these signal words: DANGER, WARNING, and CAUTION. These
words are used with the safety-alert symbol.

DANGER identifies the most serious hazards which will result in severe personal injury
or death.

WARNING signifies hazards which could result in personal injury or death.

CAUTION is used to identify unsafe practices which may result in minor personal

injury or product and property damage.

NOTE is used to highlight suggestions which will result in enhanced installation,
reliability, or operation.

NOTE: Your actual heat pump system and related devices may differ from the images
shown in this manual.

This appliance is not intended for use by children without responsible adult supervision.

Proper care should be taken to ensure safety.

Heat pumps, air conditioners & heating equipment should be installed, started up, and
serviced only by qualified installers and service technicians. Air conditioning, heat pumps
and refrigeration systems are hazardous due to high voltage electrical components, high
refrigerant pressures, and moving parts.

WARNING

SAFETY PRECAUTIONS

• The unit should be installed and serviced only by trained, qualified installers and service

mechanics. Untrained personnel can perform basic maintenance functions such as
cleaning coils. All other operations should be performed by trained service personnel.

• Owner should be cautioned that children should not play with the appliance.

ELECTRICAL SHOCK HAZARD

Failure to follow this warning could result in personal injury or death.

• Before installing, servicing or modifying the system, the main electrical disconnect switch

must be in the OFF position. There may be more than one disconnect switch. Lock out
and tag all switches with a warning label.

General Safety Precautions

• A dedicated power supply circuit should be used in accordance with local electrical

safety regulations and National Electrical Codes (NEC).

• Ensure that the entire system is reliably grounded.

• Use proper size circuit breaker to protect equipment against short circuit and
overload conditions.

• The system must be positioned at least 5 feet from combustive surfaces.

• Observe all local codes and regulations.

INSTALLATION SITE INSTRUCTIONS

Proper installation site is vital for correct and reliable operation of the system.

Avoid the following installation locations :

• Strong heat sources, vapors, flammable gas or volatile liquids.

• High-frequency electro-magnetic waves, generated by radio equipment, welders
or medical equipment.s

3

WARNING

CAUTION

4

SYSTEM REQUIREMENTS
Piping Requirements

REFRIGERANT CHARGE

ELECTRICAL REQUIREMENTS

PIPE SIZE in (mm)

Notes: Insulate both refrigerant lines, separately.

Notes: 1) System must be on a single dedicated circuit.

2) Main power is supplied to the outdoor unit.

3) Use table above to size over current protection.

4) Follow all local building codes and NEC (National Electrical Code) regulations.

Interconnecting Cable: Recommended cable - 14/4 AWG stranded bare copper conductors THHN 600V unshielded wire

Note: Use shield cable if installation is in close proximity of RF and EMI transmitting devices.
Condensate Drain Size: 5/8-in OD 7/16-in ID

Note: Insulate condensate drain hose to prevent sweating and possible water damage.

Unit Size

Voltage

L

iquid Line Suction/Gas Line

(

BtuH)

9

,000 115v - 1ph 60hz 1/4 (6) 3/8 (9.5)

12,000 115v - 1ph 60hz 1/4 (6) 3/8 (9.5)

9,000 208/230v - 1ph 60hz 1/4 (6) 3/8 (9.5)

1

2,000 208/230v - 1ph 60hz 1/4 (6) 3/8 (9.5)
18,000 208/230v - 1ph 60hz 1/4 (6) 1/2 (12)
24,000 208/230v - 1ph 60hz 1/4 (6) 1/2 (12)

Unit Size

Voltage

Min Line Max Line Max Elevation

(BtuH) Length Length (ID over OD)

9,000 115v - 1ph 60hz 10 (3) 66 (20) 33 (10)

12,000 115v - 1ph 60hz 10 (3) 66 (20) 33 (10)

9,000 208/230v - 1ph 60hz 10 (3) 50 (15) 33 (10)
12,000 208/230v - 1ph 60hz 10 (3) 50 (15) 33 (10)
18,000 208/230v - 1ph 60hz 10 (3) 82 (25) 33 (10)
24,000 208/230v - 1ph 60hz 10 (3) 82 (25) 33 (10)

**Main power wire from electrical panel to outdoor unit.

*Precharge amount for up to 25-ft of refrigerant pipe.

REFRIGERANT LINE LENGTHS ft (m)

Unit Size

Voltage

Refrigerant Factory System Additional

(BtuH) Type Charge oz (kg)* Charge oz/ft (g/m)

9,000 115v - 1ph 60hz R410A 35.3 (1.0) 0.2 (20)

12,000 115v - 1ph 60hz R410A 35.3 (1.0) 0.2 (20)

9,000 208/230v - 1ph 60hz R410A 26.1 (0.74) 0.2 (20)
12,000 208/230v - 1ph 60hz R410A 35.3 (1.0) 0.2 (20)
18,000 208/230v - 1ph 60hz R410A 45.9 (1.3) 0.2 (20)
24,000 208/230v - 1ph 60hz R410A 54.7 (1.6) 0.2 (20)

Unit Size

Voltage

Min Circuit Max Overcurrent Main Power

(BtuH) Amps (MCA) Protection (MOP) Wire Size (AWG)**

9,000 115v - 1ph 60hz 13 20 12
12,000 115v - 1ph 60hz 15 25 10

9,000 208/230v - 1ph 60hz 10 15 14
12,000 208/230v - 1ph 60hz 10 15 14
18,000 208/230v - 1ph 60hz 15 25 10
24,000 208/230v - 1ph 60hz 16 25 10

5

• Standard Wrench

• Adjustable/Crescent Wrench

• Torque Wrench

• Hex Keys or Allen Wrenches

• Drill & Drill Bits

• Hole Saw

• Pipe Cutter

• Screw drivers (Phillips & Flat blade)

• Manifold and Gauges

• Level

• R410A Flaring Tool

• Clamp on Amp Meter

• Vacuum Pump

• Safety Glasses

• Work Gloves

• Refrigerant Scale

• Micron Gauge

SUGGESTED TOOLS

6

INSTALLATION SITE INSTRUCTIONS

Step 1

Installation Site of Indoor Unit

Select a site that allows for the following:

• Ensure the installation complies with the installation minimum dimensions and meets the

minimum and maximum connecting piping length and maximum change in elevation.

•

Air inlet and outlet will be clear of obstructions, ensuring proper airflow throughout the room.

• Condensate can be easily and safely drained.

• All connections can be easily made to outdoor unit.

• Indoor unit is out of reach of children.

• A wall strong enough to withstand the full weight and vibration of the unit.

• Filter can be easily accessed for cleaning.

• Leave enough free space to allow access for routine maintenance.

• Install at least 10 ft. (3 m) away from the antenna of TV set or radio. Operation of the air

conditioner may interfere with radio or TV reception in areas where reception is weak.
An amplifier may be required for the affected device.

• Do not install in a laundry room or by a swimming pool.

Installation Site of Outdoor Unit

Select a site that allows for the following:

• Outdoor location meets all minimum installation distances defined in the Installation

Dimensions section.

• Sound from outdoor unit will not annoy neighbors.

• All connections can be easily made to indoor unit.

• Air inlet and outlet will be clear of obstructions to ensure proper airflow.

• Wall or roof is strong enough to withstand the full weight and vibration of the outdoor

unit (for wall or roof installation only).

• Outdoor unit is out of reach of children and does not obstruct walkways.

• Outdoor unit is not exposed to direct sunlight or strong wind.

• Maintenance and repairs can be easily performed on the outdoor unit.

• Ensure the installation complies with the minimum and maximum connecting piping

length and maximum change in elevation criteria.

Indoor unit

Part Name

1. Remote Controller

2. Front Panel

3. Air Filter

4. Horizontal Louver

5. Wall Hole Sleeve

6. Insulation

7. Refrigerant Pipes

8. Drain Hose

Outdoor unit

2

3

6

5

8

7

4

1

7

INSTALLATION DIMENSIONS