Gree Multi21 CONSO9HP230V1AF User manual

MI I-FLOOR CO SOLE
I STALLATIO MA UAL
odels:
CONSO9HP230V1AF
CONS12HP230V1AF
CONS18HP230V1AF

Table of Contents
Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Nomenclature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
System Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Suggested Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
System Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Installation Site Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Indoor Unit Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-8
Piping Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-12
Power & Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13-15
Testing and Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Diagnostic Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18-21
Installation Record . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Back
Thank you for choosing a
Multi21 Mini Floor Console Ductless
Heat Pump System for your customer.
Please read this installation manual carefully before installing and starting up
the Floor Console Ductless 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.

SAFETY PRECAUTIO S
Please read the following before installation.
This is the safety alert symbol. It is used to alert you to potential
personal injury hazards. Obey all safety messages that follow this
symbol to avoid possible injury or death.
This mark indicates procedures which, if improperly performed,
might lead to the death or serious injury of the user.
This mark indicates procedures which, if improperly performed, might
possibly result in personal harm to the user, or damage to property.
Notice is used to address practices not related to personal injury.
General Safety Precautions
1. Instructions for installation and use of this product are provided by the manufacturer.
For proper operation, the system must be installed in accordance with this
installation manual.
2. Installation must be performed in accordance with local laws, regulations and
National Electrical Codes (NEC).
3. If there is a refrigerant leak while work is being carried out, ventilate the area.
Do not allow refrigerant to come in contact with a flame as it produces toxic gas.
4. Disconnect all electrical power to the indoor and outdoor units until the system is
ready for start-up and checkout.
5. When installing or repairing the system, use only R410A refrigerant. Do not
mix refrigerant with other gases. If air or other gas enter the refrigeration system,
the pressure inside the system may rise to an abnormally high value and cause
damage or injury.
This appliance is not intended for use by persons (including children) with reduced physical,
sensory or mental capabilities, or lack of experience and knowledge, unless they have been given
supervision or instruction concerning use of the appliance by a person responsible for their safety.
WARNING
CAUTION
NOTICE
WARNING
1

OME CLATURE
Cooling Capacity
9-9,000BTUH
12 -12,000BTUH
18 -18,000BTUH
24 -24,000BTUH
Series Designation
Revision Level
Style/ColorDesignation
ProductType
S-System
O-Outdoorunits
H-IndoorHigh Wall
D-IndoorDuct
C-IndoorCassette
F -IndoorFloor/Ceiling
Electrical Rating
230V-208/230V60Hz1PH
Model Type
AC- Cooling Only
HP- HeatPump
HC -Heat/Cool115V-115V60Hz1PH
Example:CONS18HP230V1AF
F
CONS 18 HP 230V 1A
CONS - Floor Console
SYSTEM REQUIREME TS
PIPE SIZE in (mm)
Condensate Drainage
It is recommended that condensate drainage systems use pipe either the same diameter
or larger (excluding the raising section) than that of the connecting pipe. The unit condensate
port is 0.67 in. (17mm) outside diameter.
Interconnecting Cable
The Floor Console unit is powered from the outdoor unit. Use recommended 14/4 AWG stranded
copper conductors THHN 600V unshielded wire.
Unit Size (BtuH)
9,000 1/4 (6) 3/8 (9.5) 33/40 lbs.
12,000 1/4 (6) 3/8 (9.5) 33/40 lbs.
18,000 1/4 (6) 1/2 (12) 33/40 lbs.
et/Gross Weight
Liquid Line Suction/Gas Line
OTE: Insulate all condensate drain pipes to prevent sweating and possible
water damage.
OTE: Use shield cable if installation is in close proximity of RF and E I transmitting devices.
2

• Standard Wrench
• Adjustable/Crescent Wrench
• Torque Wrench
• Hex Keys or Allen Wrenches
• Drill & Drill Bits
• Hole Saw
• Pipe Cutter
• Screw drivers (Phillips & Flat blade)
• anifold and Gauges
• Level
• R410A Flaring Tool
• Clamp on Amp eter
• Vacuum Pump
• Safety Glasses
• Work Gloves
• Refrigerant Scale
• icron Gauge
SUGGESTED TOOLS
3

4
SYSTEM PARTS
Indoor Unit
Part ame
1. Front Cabinet
2. Remote Controller
3. Front Panel
4. Service Cover
5. Liquid Pipe
6. Gas Pipe
7. Drain Pipe
Outdoor Unit
2
34 567
1
The refrigerant pipe, drain pipe and electrical wiring for this unit should be
installed by a qualified HVAC professional only.
CAUTION

I STALLATIO SITE I STRUCTIO S
Indoor Unit
The unit must be installed in a location which can withstand four times the weight of the unit.
Inadequate support may result in serious property damage and injuries.
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 should 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 structure strong enough to withstand four (4) times the full weight of the unit.
• Filter can be easily accessed for cleaning.
• Leave enough free space to allow access for routine maintenance.
• Do not install in a laundry room or by a swimming pool due to chemicals corroding indoor unit coil.
WARNING
Minimum Indoor Clearance Specifications
The unit installation must meet or exceed the following minimum clearances for proper operation.
AB CD
60 (1524) 24 (610) 6 (152) 24 (610)
MI IMUM I DOOR CLEARA CE Inches (mm)
5

I DOOR U IT I STALLATIO
Indoor Unit Dimensions
AB C
27.6 (700) 8.5 (215) 23.6 (600)
I DOOR U IT DIME SIO S Inches (mm)
Preparing Indoor Unit for Installation
Begin the mini-floor console indoor unit installation by removing the front panel and cabinet
section to gain access to the unit mounting holes.
1. Locate and unlock the 2 front panel latches by sliding them down. Refer to figure below.
2. Remove front panel.
C
6

The ini-Floor Console can be piped from the right or left hand side by removing a pre-formed
knockout hole in the side trim piece.
1. Locate and remove screws holding the unit trim. Refer to figure below.
2. Release two locking tabs per section and carefully remove the unit trim pieces.
3. Using a sharp blade or pliers, remove the required knockout from the bottom of the side trim.
4. Replace all trim pieces on unit casing.
I DOOR U IT I STALLATIO
Remove the front cabinet from the unit casing. Refer to figure below.
1. Locate and remove 4 mounting screws.
2. Disengage 3 locking tab on top and 2 on the bottom of front cabinet and gently separate
from unit casing.
Preparing Indoor Unit for Installation
For Side Piping (Right or Left) Applications Only
7

1. Determine the mounting location on the wall for the indoor unit. Follow the selection criteria
in the previous section.
2. Locate the factory supplied installation template included in carton and attach to the wall.
Verify the installation template is level right to left.
3. Using the template, mark the required holes:
- 2 wall hooks (3 holes each)
- 4 unit mounting holes (2 on each side)
- Condensate drain line (not shown on template)
- Refrigerant piping (not shown on template)
OTE: Depending on the installation, the refrigeration pipes
and condensate drain hose may exit from the rear, bottom,
right or left of the unit.
4. Remove wall template and drill holes for both wall hooks
and insert anchors (field supplied). Secure unit mounting
hooks to the wall.
5. Drill 4 unit mounting holes and insert anchor bolts
(field supplied) into drilled holes.
OTE: It is recommended to install screw anchors for sheet
rock, concrete block, brick and such type of walls.
6. Verify the indoor unit mounting.
- Carefully lift and set the unit on the 2 wall hooks.
The wall hooks should catch metal mounting bracket
on the rear of the unit.
- Verify the unit mount holes align with wall holes.
- Verify refrigerant piping and condensate drain line locations are valid for the unit.
- Verify unit is level right to left.
7. Carefully remove indoor unit from anchor bolts in order to begin making piping connections.
OTE: Do not reinstall front panel and cabinet until instructed.
1
.2”1
.2”
6.7”
8.7”
4.7”
27
.6”
7.9”
25.2”
6.3”
8.7”4.7”
22.8”
24”
Installation
template
I DOOR U IT I STALLATIO
Laying Out Indoor Location
8
7.9inch

2. Cut the wall hole with a 5° to 10° downward slant to the outdoors. See Wall Hole Size table below.
3. Insert a wall sleeve (field supplied) into hole to to prevent damage to refrigerant pipes, insulation,
condensate drain hose and wiring.
4. Proper weather proofing of the wall surface and wall sleeve is essential to assure a trouble-free
installation. Apply sealant, caulking or equivalent weather proofing material around the perimeter of
the wall sleeve (interior & exterior) to eliminate outdoor air and water leaks into the indoor space.
PIPI G I STALLATIO
Drill Hole in Wall
1. Carefully remove indoor unit from wall mounting hooks.
OTE: Expandable foam insulation may be added to fill large wall gaps.
Apply per manufacturer's instructions.
Seal Hole
Hole Size
Indoor Outdoor
Wall Hole Diagram
Wall
Hole Sleeve
Unit Size Wall Hole Size
(BtuH) Dia - inch (mm)
9,000 2 1/4 (55)
12,000 2 1/4 (55)
18,000 2 3/4 (70)
Mounting Indoor Unit
1. Carefully lift and set the unit on the 2 wall hooks.
The wall hooks should catch metal mounting
bracket on the rear of the unit.
2. Locate 4 mount holes in the indoor unit.
Refer to figure.
3. Secure unit to wall with 4 screws
(field supplied).
4 screw locations
9

Piping Preparation
1. Do not open service valves or remove protective caps on pipes until instructed by this manual.
2. Keep tubing free of dirt, sand, moisture and contaminants.
3. Insulate each refrigerant pipe and condensate hose with minimum 3/8” (10 mm) wall
thermal pipe insulation.
4. Bind refrigerant pipes and communication cable together with cable ties at 12-inch intervals.
5. Include the condensate hose in bundle for exterior portion only.
PIPI G I STALLATIO
Refrigerant Piping
Oil return bend
Indoor
Outdoor
20 ft. 30 ft.
Oil return bend
Indoor Unit below Outdoor Unit Application
When height difference between indoor unit and outdoor
unit is more than 30 feet, an oil return bend should be added
for every 20 feet of connection pipe as shown.
Indoor Unit Pipe Connections
1. Feed refrigerant pipes, drain hose and communication cable assembly through wall hole
from outdoor to the Floor Console indoor unit.
2. Pull the piping assembly to the indoor unit. Carefully bend refrigerant pipes to meet indoor
unit connection ports. Use proper tools to avoid kinks.
3. Add a small amount of refrigerant oil to
both ends of the flare fittings.
4. Starting with either refrigerant pipe, carefully
center the pipe to the indoor unit connection
port then hand tighten the flare nut.
5. Repeat procedure with remaining pipe.
Copper
piping
Oil applied
(to reduce friction
with the flare nut)
Flare nut Oil applied
(improve eal
air-tightne )
10

PIPI G I STALLATIO
Indoor Unit Pipe Connections (con’t)
6. Tighten both flare nuts using a standard wrench and a torque wrench as shown below.
7. Carefully tighten flare nuts to correct torque level referring to the Torque Table below.
8. Individually insulate each bare refrigerant pipe and joint as shown below to prevent sweating.
Over tightening may damage flare connections and cause leaks.
CAUTION
90
90
Holding panner
Torque wrench
Floor Console Indoor Unit
Outdoor Unit Pipe Connections
Carefully bend and adjust length of refrigerant pipes to meet
outdoor unit port connections. See installation instructions
shipped with the outdoor unit for further instructions..
In ulate
pipe In ulate
pipe
Pipe
in ulation
Liquid pipe
Ga pipe
Reference A:
Cover thi portion
with in ulation
11
Pipe Diameter ut Size Tightening Torque
inch (mm) inch (mm) ft-lbs -m
1/4 (6) 1/4 (17) 11-22 15-30
3/8 (9.5) 3/8 (22) 26-29 35-40
1/2 (12.7) 1/2 (25) 33-37 45-50

Indoor Condensate Drain Piping
PIPI G I STALLATIO
Observe all local sanitary codes when installing condensate drains.
WARNING
The drain piping should be as short as possible with a constant downward slope. It is recommended
to install the condensate drain system with hard polyvinyl chloride (PVC) pipe and matching
connectors. Use piping of the same or greater diameter as the unit connection.
The Floor Console drainage port diameter is 1-in (25-mm) OD.
Pitch the condensate drain pipe at a gradual 2.5% pitch (Example: ¼-in drop over a 10-in length)
without obstructions. Use pipe hanger/brackets to support the condensate drain pipe from dropping.
If a gradual pitch from the drainage port is not obtainable, use an auxiliary condensate pump with
float valve. A float valve is recommended to shut off the system if auxiliary pump fails.
OTE: Insulate condensate hose and/or pipes to prevent sweating which may cause
water stains or wall damage.
Completing Condensate Drainage Piping
• Include the exterior section of condensate hose in the pipe/wire bundle.
• Fasten the refrigerant and condensate pipe assembly to the exterior
wall for support.
• The drain pipe should terminate 6 inches above grade.
Test the Condensate Drainage Piping
• Open front panel and remove air filter.
• Slowly add 20 to 24 oz. of water to the drain pan.
• Water must drain freely from the unit If not, check the pipe slope
or see if there are any pipe restrictions.
• Verify all piping joints are leak free.
12

POWER A D WIRI G I STALLATIO
WARNING
1. Before obtaining access to wire terminals, all electrical supply circuits must be disconnected,
locked out and tagged.
2. Always use an independent (dedicated) circuit and provide an independent (dedicated)
circuit breaker to supply power to the system.
3. Use a circuit breaker with adequate capacity to meet the requirements of the total system.
4. All circuit breakers or fuses for the indoor and outdoor units should be installed per the
National Electric Code (NEC) and local regulations.
5. Electrical wiring must be completed in accordance with NEC, local laws, and regulations
of the electric company so that the system will operate properly.
6. Provide a GFI circuit breaker at the electrical panel in accordance with the NEC and the
local electrical company standards.
7. Connect the power supply firmly to the terminal block. Improper installation may cause a fire.
CAUTION
1. The main power supplies are high-voltage, while the communication wire and the Tether Controller
are low-voltage. They should be installed separately to avoid electromagnetic interference.
2. High-voltage and low-voltage lines should pass through separate rubber rings at electric box covers.
3. If the indoor unit communication wire (to the outdoor unit) and power wire are connected
incorrectly, the air conditioner may be damaged.
4. Ground both indoor unit and outdoor unit to earth ground in accordance with the applicable local
and national codes.
Electric Wiring Between Indoor Unit and Outdoor Unit
G
Power:
NN( N(1N(1) N(1)
22
33
22
33
NN( N(1N(1) N(1)
Cassette Unit
Typical Wiring Diagram
Red
White
Floor Console
Unit
Green
13
Black

POWER A D WIRI G I STALLATIO
Electrical Connections to Floor Console
Disconnect all electrical power to indoor and outdoor units including disconnects,
fuses and circuit breakers. Lockout and tag all disconnect switches.
1. Adjust the length of the interconnecting wires so that it can easily reach the Floor Console
electrical control box.
2. Open electrical control box cover and route the interconnecting wires to field wiring terminal block.
OTE: The indoor unit is powered from the outdoor unit, depending on local code, a
disconnect switch may need to be installed to a power supply circuit.
3. Secure interconnecting wires to the terminal block as shown in the connection diagram above.
OTE: Record wire colors and terminal references for uses with Outdoor Unit wire connections.
4. Secure all wires inside wire clamp/strain relief. Verify wires are secure, not loose and no
external force on wires affects the connections at the terminals.
OTE: Crossing interconnecting wires will cause system malfunction and possible damage.
5. Replace field wiring metal cover plate on unit.
WARNING
Outdoor Electrical Wiring
For Outdoor Unit wire connections, see installation instructions shipped with the outdoor unit.
23
Terminal block
Electrical
component
box
Wire retainer
N(1)
Front metal
plate cover
14

Outdoor Unit
Indoor Unit
Indoor Unit Disconnect Switch
Wires
Outdoor Unit
Black
POWER A D WIRI G I STALLATIO
Local codes may require a disconnect switch within sight of the indoor unit. Use a DFS Disconnect
Switch Accessory Kit (Part No: DFS-SWITCH-A) to break interconnecting wires going to the N(1),
2, 3, terminals on the indoor unit, as shown in the wiring diagram below:
Indoor Disconnect Switch (Optional)
Red
White
Green
15

Start-up Checklist
□Turn on main power to indoor and outdoor units.
• Verify the system is not displaying an error code on the indoor unit display.
□Point the Remote Controller at the
Floor Console unit and Press the On button.
• Verify the remote controller display turns ON and the
Power Indicator lights up on the Floor Console unit.
□Press the Mode button to Cooling.
Adjust the room setpoint to bring the system on in cooling mode.
The system should start cooling mode within 3-5 minutes.
• Verify the setpoint lights up on the Floor Console unit display.
• Verify the outdoor fan and compressor are operating.
• Verify the indoor fan is operating.
• Verify the indoor discharge air is cooling the room.
□Press the Mode button to Heating.
Adjust the room setpoint to bring the system on in heating mode.
The system should start heating mode within 3-5 minutes.
• Verify the new setpoint lights up on the Floor Console unit display.
• Verify the outdoor fan and compressor are operating.
• Verify the indoor fan is operating.
• Verify the indoor discharge air is heating the room.
□Press the OFF button on the Remote Controller.
• Verify Remote Controller display turns OFF and the system shuts OFF.
Overview of Display Panel
1. Power Indicator: Power indicator will be on after
electrical power is turned on, while it will be off
after disconnecting power.
2. COOL Indicator: COOL indicator will be on after
COOL mode is activated while it will be off after
COOL mode is turned off.
3. Heat Indicator: HEAT indicator will be on after
HEAT mode is activated, while it will be off after
HEAT mode is turned off.
4. Indoor setpoint and temperature display.
TESTI G A D I SPECTIO
1. Cool ode Indicator
2. Heat ode Indicator
3. Power ON/OFF Button
4. Signal Receiver
5. Dry ode Indicator
6. Run Indicator
7. LED Display
1
272
5
6
7
34
16

TROUBLESHOOTI G
PROBLEM
System does not restart.
Indoor unit emits unpleasant odor
when started
You hear a“water flowing”sound.
A thin fog or vapor coming out
of the discharge register when
system is running.
You hear a slight cracking sound
when the system stops or starts.
The system will not run.
The unit is not heating or cooling
adequately.
Water leaking from the indoor
unit into the room.
The unit will not deliver air.
CAUSE/SOLUTIO
Cause: The system has a built-in three-minute delay to prevent short and/or rapid cycling of
the compressor.
Solution: Wait three minutes for the protection delay to expire.
Cause: Typically unpleasant odors are the result of mold or mildew forming on the coil surfaces
or the air filter.
Solution: Wash indoor air filter in warm water with mild cleaner. If odors persist, contact a
qualified service professional to clean the coil surfaces.
Cause: It is normal for the system to make“water flowing”or“gurgling”sounds from
refrigerant pressures equalizing when the compressor starts and stops
Solution: The noises should discontinue as the refrigerant system equalizes after two or three minutes.
Cause: It is normal for the system to emit a slight fog or water vapor when cooling extremely humid
warm air.
Solution: The fog or water vapor will disappear as the system cools and dehumidifies the room space.
Cause: It is normal for the system to make “slight cracking” sounds from parts expanding and
contracting during system starts and stops.
Solution: The noises will discontinue as temperature equalizes after two or three minutes.
Cause: There are a number of situations that will prevent the system from running.
Solution: Check for the following:
• Circuit breaker is “tripped” or “turned off.”
• Power button of controller is not turned on.
• Controller is in sleep mode or timer mode.
• Otherwise, contact a qualified service professional for assistance.
Cause: There are a number of reasons for inadequate cooling or heating.
Solution: Check the following:
• Remove obstructions blocking airflow into the room.
• Clean dirty or blocked air filter that is restricting airflow into the system.
• Seal around door or windows to prevent air infiltration into the room.
• Relocate or remove heat sources from the room.
Cause: While it is normal for the system to generate condensate water in cooling mode,
it is designed to drain this water via a condensate drain system
to a safe location.
Solution: If water is leaking into the room, it may indicate one of the following.
• The indoor unit is not level right to left. Level indoor unit.
• The condensate drain pipe is restricted or plugged. All restrictions must be removed
to allow continuous drainage by gravity.
• If problem persists, contact a qualified service professional for assistance.
Cause: There are a number of system functions that will prevent air flow.
Solution: Check for the following:
• In heating mode, the indoor fan may not start for three minutes if the room
temperature is very low. This is to prevent blowing cold air.
• In heat mode, if the outdoor temperature is low and humidity is high, the system
may need to defrost for up to 10 minutes before beginning a heating cycle.
• In dry mode, the indoor fan may stop for up to three minutes during the compressor off delay.
• Otherwise, you should contact a qualified service professional for assistance.
17

DIAG OSTIC CODES
X-fan ode
Indoor Evap Coil Temperature
Sensor alfunction
Gas valve temperature sensor
is open/short circuited
System Configuration
alfunction
Communication wire error or
electronic expansion valve
malfunction
Wrong connection of communication
wire or malfunction of electronic
expansion valve
System High Pressure
Indoor Anti-Freeze Protection
Low Pressure Protection
Compressor High Discharge
Temperature Protection
Overcurrent Protection
Communication alfunction
ode conflict (Indoor units
calling for simultaneously
Heating and Cooling)
Operation status
1) Loose or bad connection between sensor and control board
2) Indoor Evap Coil temperature sensor damaged
3) Control board malfunction
Hardware malfunction
1) No jumper cap inserted on the control board
2) Incorrect or damaged jumper cap on control board
3) Indoor and outdoor units are not compatible
Operation status
Hardware malfunction
1) Over charged with refrigerant
2) Blocked or dirty outdoor coil
3) Extreme outdoor ambient conditions
1) Low return airflow
2) Indoor fan speed is too low
3) Indoor coil is blocked or dirty
1) Low on refrigerant
2) Pressure sensor is damaged
Please refer to the malfunction analysis (discharge
temperature, overload) in service manual
1) Supply voltage is unstable
2) Supply voltage is too low and system load is too high
3) Indoor coil is blocked or dirty
1) Communication cable is mis-wired between indoor
and outdoor units
2) Indoor or Outdoor control board malfunction
Operation status
AL
b5
b7
C5
dd
dn
E1
E2
E3
E4
E5
E6
E7
Yellow
3 flashes
and 1 sec Off
7 flashes
and 1 sec Off
5 flashes
and 1 sec Off
Continuous
On
Red
9 flashes
and 1 sec Off
Troubleshooting
The unit has onboard diagnostics. The outdoor unit will provide status indicators. The indoor
wall unit and remote controller will display error codes. The following is a summary of the
codes with explanation:
Indoor Unit
& Remote
Display
Outdoor Unit Indicators
Malfunction ame Possible Causes
18