Gree MULTI42HP230V1AOC Installation manual

MULTI

DUCTLESS INVERTER

HEAT PUMP

INSTALLATION MANUAL

Models: MULTI18HP230V1AO MULTI24HP230V1AO MULTI30HP230V1AO MULTI36HP230V1AO MULTI42HP230V1AO

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

Please read this installation manual carefully before installing and starting up the Multi 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

1 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 hazar 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.

ds which will result in severe personal injury

WARNING

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

, heat pumps

SAFETY PRECAUTIONS

CAUTION

• 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.

WARNING

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.

• 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.

SYSTEM REQUIREMENTS Piping Requirements

OUTDOOR UNITS in (mm)

Unit Size (BtuH)

18,000

24,000 Port 2 1/4 (6) 3/8 (9.5)

30,000

36,000

42,000 Port 3 1/4 (6) 1/2 (12)

Port 1 1/4 (6) 3/8 (9.5) Port 2 1/4 (6) 3/8 (9.5) Port 1 1/4 (6) 3/8 (9.5)

Port 3 1/4 (6) 3/8 (9.5) Port 1 1/4 (6) 3/8 (9.5) Port 2 1/4 (6) 3/8 (9.5) Port 3 1/4 (6) 3/8 (9.5) Port 4 1/4 (6) 3/8 (9.5) Port 1 1/4 (6) 3/8 (9.5) Port 2 1/4 (6) 3/8 (9.5) Port 3 1/4 (6) 1/2 (12) Port 4 3/8 (9.5) 5/8 (16) Port 1 1/4 (6) 3/8 (9.5) Port 2 1/4 (6) 3/8 (9.5)

Port 4 1/4 (6) 1/2 (12) Port 5 3/8 (9.5) 5/8 (16)

Liquid Line

INDOOR UNITS in (mm)

Unit Size (BtuH)

9,000 1/4 (6) 3/8 (9.5) 12,000 1/4 (6) 3/8 (9.5) 18,000 1/4 (6) 1/2 (12)

Liquid Line

in(mm)

REFRIGERANT PIPE LENGTHS

Unit Size

(BtuH) Length ft(m) Length ft(m) Pipe Length ft(m) IND Units ft

18,000 10 (3) 66 (20) 33 (10) 16 33 (10) 24,000 10 (3) 230 (70) 66 (20) 33 66 (20) 30,000 10 (3) 230 (70) 66 (20) 33 66 (20) 36,000 10 (3) 230 (70) 82 (25) 50 82 (25) 42,000 10 (3) 262 (80) 82 (25) 50 82 (25)

Min Pipe

Max Total Pipe Max Equivalent Max Elev btwn Max Elev btwn

REFRIGERANT CHARGE

Unit Size Refrigerant Factory System Max Pipe Length w/out Additional

(BtuH) Type

18,000 R-410A 48 (1.4) 33 (10) 0.2 (20) 24,000 R-410A 78 (2.2) 98 (30) 0.2 (20) 30,000 R-410A 78 (2.2) 131 (40) 0.2 (20) 36,000 R-410A 102 (2.9) 131 (40) 0.2 (20) 42,000 R-410A 169 (4.8) 164 (50) 0.2 (20)

Charge oz (kg)

in(mm)

adding Refrig ft(m) Charge oz/ft (g/m)

Suction/Gas Line

IND& OTDUnits ft(m)

in(mm)

ELECTRICAL REQUIREMENTS

Unit Size

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

18,000 208/230v - 1ph 60hz 13 20 12 24,000 208/230v - 1ph 60hz 20 30 10 30,000 208/230v - 1ph 60hz 26 45 8 36,000 208/230v - 1ph 60hz 28 45 8 42,000 208/230v - 1ph 60hz 29 50 6

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

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.

Voltage

Min Circuit Max Overcurrent Main Power

SUGGESTED TOOLS

• 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

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

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.

• Determine if condensate pumps are required to properly drain condensate water from

the indoor units.

of the air

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.

INSTALLATION DIMENSIONS

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

INSTALLATION DIMENSIONS

Minimum indoor clearances

Ceiling

6 in (0.15m)

5 in

(0.13m)

6 ft (1.8m)

Floor

Minimum outdoor clearances

5 in

(0.13m)

Air inlet

Air outlet

Outdoor Unit

A 20 (500)

B 24 (610) C 78 (2000) D 12 (305)

E 20 (500)

Minimum Distances

in (mm)

INSTALLATION OF INDOOR UNIT

Step 2

Piping Design and Layout

The piping design and layout are critical factors for the overall performance and reliability of the system. Find the desired locations for each indoor unit and the outdoor unit.

Measure and record the piping length (L1,L2, L3….Ln) from the outdoor unit to each indoor unit.

NOTE: Min. refrigerant line length between the indoor and outdoor units is 10 ft. (3 m).

L1=

L2=

L3=

L4=

L5=

Find the indoor units with the greatest vertical distance from the outdoor unit. Measure the maximum vertical height (H1) from the bottom of the outdoor unit to the bottom of the highest mounted indoor units.

H1=

Find the two indoor units with the greatest vertical distance from each other. Measure the maximum vertical height (H2) between those two indoor units from bottom of one unit to bottom of the other unit.

H2=

9 10

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