Nortek GXH09(2.6)LSA4DL2 Mini Split Heat Pump Systems Owner’s Manual

Nortek GXH09(2.6)LSA4DL2 Mini Split Heat Pump Systems

Product Information

The NORTEK GLOBAL HVAC, LLC Mini Split Heat Pump Systems Outdoor Units are a range of heat pump systems designed for cooling and heating purposes. The available models include GXH09(2.6)LSA4DL2, GXH12(3.5)LSA4DL2, GXH09(2.6)LSK4DL2, GXH12(3.5)LSK4DL2, GXH18(5.3)LSK4DL2, GXH24(7.0)LSK4DL2, GXH09(2.6)LSK4DH2, GXH12(3.5)LSK4DH2, GXH24(7.0)LSK4DH2, GXH30(8.8)LSK4DH2, and GXH36(10.6)LSK4DH2.

The product comes with an owner’s manual and installation instructions provided by the manufacturer, NORTEK GLOBAL HVAC, LLC.

It is important to note that the actual product may differ from the graphics in the manual, and users should refer to the actual products for accurate information.

The manual includes various symbols to indicate important information and potential risks. The symbols used are:

• WARNING: This symbol indicates the possibility of death or serious injury.
• CAUTION: This symbol indicates the possibility of injury or damage to property.
• NOTICE: Indicates important but not hazard-related information, used to indicate the risk of property damage.

The manual also includes exception clauses that outline situations where the manufacturer will not bear responsibilities or personal injury or property loss.
Installation, movement, and maintenance of the heat pump systems should be performed by a licensed HVAC contractor to avoid serious damage, personal injury, or death.

When handling, charging, or recovering refrigerant during installation, maintenance, or disassembly, it should be done by certified professionals or in compliance with local laws and regulations.

The manual includes FCC and IC statements regarding equipment modifications, antenna reorientation, and compliance with regulations.

Product Usage Instructions

Safety Precautions – Installation

WARNING: The grounding resistance should comply with national electric safety regulations. Proper grounding of the air conditioner is essential to avoid electric shock. Do not connect the power before finishing installation. Install a circuit breaker to prevent malfunctions. Use an all-pole disconnection switch with a contact separation of at least .12 in all poles. The circuit breaker should include magnet buckle and heating buckle functions to protect against overload and circuit-short.

Safety Precautions – Operation and Maintenance

CAUTION: If the power cord is overheating or damaged, discontinue use and seek professional assistance. If there is an abnormal sound during operation or if the circuit breaker trips off repeatedly, contact a qualified technician for inspection and repairs.

Safety precautions

WARNING

Installation

• Installation or maintenance must be performed by qualified professionals.
• The appliance shall be installed in accordance with national wiring regulations.
• According to the local safety regulations, use qualified power supply circuit and circuit breaker.
• All wires of indoor unit and outdoor unit should be connected by a professional.
• Be sure to cut off the power supply before proceeding any work related to electricity and safety. Make sure the power supply matches with the requirement of air conditioner.
• Unstable power supply or incorrect wiring may result in electric shock, fire hazard or malfunction. Please install proper power supply cables before using the air conditioner.
• The grounding resistance should comply with national electric safety regulations.
• Air Conditioner should be properly grounded. Incorrect grounding may cause electric shock.
• Do not put through the power before finishing installation.
• Do install the circuit breaker.
• If not, it may cause malfunction.
• An all-pole disconnection switch having a contact separation of at least .12 in all poles should be connected in fixed wiring.
• Circuit breaker should be included magnet buckle and heating buckle function.
• It can protect the overload and circuit-short.

CAUTION
Installation

• Instructions for installation and use of this product are provided by the manufacturer.
• Select a location which is out of reach for children and far away from animals or plants. If it is unavoidable, please add the fence for safety purpose.
• The indoor unit should be installed close to the wall.
• Don’t use unqualified power cord.
• If the length of power connection wire is insufficient, please contact the supplier for a new one.
• The appliance must be positioned so that the plug is accessible.
• For the air conditioner with plug, the plug should be reachable after finishing installation.
• For the air conditioner without plug, a circuit breaker must be installed in the line.
• The yellow-green wire in air conditioner is grounding wire, which can’t be used for other purposes.
• The air conditioner is the first class electric appliance.
• It must be properly grounder with specialized grounding device by a professional.
• Please make sure it is always grounded effectively, otherwise it may cause electric shock.
• The temperature of refrigerant circuit will be high, please keep the interconnection cable away from the copper tube.

WARNING

Operation and Maintenance

• This appliance can be used by children aged from 8 years and above and persons with reduced physical, sensory or mental capabilities or lack of experience and knowledge if they have been given supervision or instruction concerning use of the appliance in a safe way and understand the hazards involved.
• Children shall not play with the appliance.
• Cleaning and user maintenance shall not be made by children without supervision.
• If the supply cord is damaged, it must be replaced by the manufacturer, its service agent or similarly qualified persons in order to avoid a hazard.
• Do not connect air conditioner to multi-purpose socket. Otherwise, it may cause fire hazard.
• Do disconnect power supply when cleaning air conditioner. Otherwise, it may cause electric shock.
• Do not wash the air conditioner with water to avoid electric shock.
• Do not spray water on indoor unit. It may cause electric shock or malfunction.
• Do not repair air conditioner by yourself. It may cause electric shock or damage.
• Please contact dealer when  you need to repair air conditioner.
• After removing the filter, do not touch fins to avoid injury.
• Do not extend fingers or objects into air inlet or air outlet. It may cause personal injury or damage.

CAUTION

Operation and Maintenance

• Do not spill water on the remotecontroller, otherwise the remote controller may be broken.
• Do not use fire or hair dryer to dry the filter to avoid deformation or fire hazard.
• Do not block air outlet or air inlet. It may cause malfunction.
• Do not step on top panel of outdoor unit, or put heavy objects. It may cause damage or personal injury.
• When below phenomenon occurs, please turn off air conditioner and disconnect power immediately, and then contact the dealer or qualified professionals for service.
• Power cord is overheating or damaged.
• There’s abnormal sound during operation.
• Circuit breaker trips off frequently.
• Air conditioner gives off burning smell. Indoor unit is leaking.

Parts name

Outdoor Unit

NOTE
Actual product may be different from above graphics, please refer to actual product.

Installation notice

Safety precautions for installing and relocating the unit

To ensure safety, please be mindful of the following precautions.

WARNING

• When installing or relocating the unit, be s-ure to keep the refrigerant circuit free from air or substances other than the specified refrigerant.
  Any presence of air or other foreign substance in the refrigerant circuit will cause system pre-ssure rise or compressor rupture, resulting in injury.

• When in stalling or moving this unit, do not charge the refrigerant which is not comply with that on the nameplate or unqualified refrigerant.
  Otherwise, it may cause abnormal operation, wrong action, mechanical malfunction or even serious safety accidents.

• When refrigerant needs to be recovered during relocating or repairing the unit, be sure that the unit is running in cooling mode. Then, fully close the valve at high pressure side (liquid valve). About 30-40 seconds later, fully close the valve at low pressure side (gas valve), immediately stop the unit and disconnect power. Please note that the time for refrigerant recovery should not exceed 1 minute.
  If refrigerant recovery takes too much time, air may be sucked in and cause pressure rise or compressor rupture, resulting in injury.

• During refrigerant recovery, make sure that liquid valve and gas valve are fully closed and power is disconnected before detachi-ng the connection pipe.
  If compressor starts running when stop valve is open and connection pipe is not yet conn-ected, air will be sucked in and cause pressure rise or compressor rupture, resulting in injury.

• When installing the unit, make sure that co-nnection pipe is securely connected before the compressor starts running.

• If the compressor starts running when stop valve is open and connection pipe is not yet conne-cted, air will be sucked in and cause pressure rise or compressor rupture, resulting in injury.

• Prohibit installing the unit at the place where there may be leaked corrosive gas or flamm-able gas.

• If there is leaked gas around the unit, it may cause explosion a nd other accidents.

• Do not use extension cords for electrical co-nnections. If the electric wire is not long eno-ugh, please contact a local service center au-thorized and ask for a proper electric wire. Poor connections may lead to electric shock or fire.

• Use the specified types of wires for electrical connections between the indoor and outdoor units. Firmly clamp the wires so that their te-rminals receive no external stresses. Electric wires with insufficient capacity, wrong wire connections and insecure wire terminals may cause electric shock or fire.

Tools for installation

1. Level meter
2. open-end wrench
3. Universal
4. Screw driver meter
5. Pipe cutter
6. Impact drill
7. Inner hexagon spanner
8. Leakage detector
9. Drill head
10. Measuring
11. Pipe expander 40 Vacuum pump tape
12. Torque wrench A Pressure meter

NOTICE

1. Please contact the local agent for installation.
2. Don’t use unqualified power cold.

Selection of installation location

Basic requirement
Installing the unit in the following places may cause malfunction. If it is unavoidable, please consult-
It the local dealer:

1. the place with strong heat sources, vapors, flammable or explosive gas, or volatile objects spread in the air.
2. The place with high-frequency devices (such as welding machine, medical equipment).
3. The place near coast area.
4. The place with oil or fumes in the air.
5. The place with sulfureted gas.
6. Other places with special circumstances.
7. The appliance shall not be installed in the laundry.
8. it’s not allowed to be installed on the unstable or motive base structure (such as truck) or in the corrosive environment (such as chemical factory).

Outdoor unit

1. select a location where the noise and outflow air emitted by the outdoor unit will not affect the neighborhood.
2. The location should be well ventilated and dry, in which the outdoor unit won’t be exposed directly to sunlight or strong wind.
3. The location should be able to withstand the weight of outdoor unit.
4. Make sure that the installation follows the requirement of the installation dimension diagram.
5. Select a location which is out of reach for children and far away from animals or plants. If it is unavoidable, please add the fence for safety purpose.

Safety precaution

1. Must follow the electric safety regulations When installing the unit.
2. According to the local safety regulations, use a qualified power supply circuit and air switch.
3. Make sure the power supply matches the requirement of air conditioner. Unstable power supply or incorrect wiring or malfunction. PI- ease install proper power supply cables before using the air conditioner.
4. Properly connect the live wire, neutral wire, and grounding wire of power socket.
5. Be sure to cut off the power supply before proceeding any work related to electricity and safety.
6. Do not put through the power before finishing the installation.
7. The temperature of refrigerant circuit will be high, please keep the interconnection cable away from the copper tube.
8. The appliance shall be installed in accordance with national wiring regulations.

Grounding requirement

1. The air conditioner is the first class electric appliance. It must be properly grounded with specialized grounding device by a professional. Please make sure it is always grounded effectively, otherwise it may cause electric shock.
2. The yellow-green wire in air conditioner is grounding wire, which can’t be used for other purposes.
3. The grounding resistance should comply with national electric safety regulations.
4. The appliance must be positioned so that theplug is accessible.
5. An all-pole disconnection switch having a cotact separation of at least .12 in all poles should be connected in fixed wiring.

Installation of outdoor unit

Step 1:
Fix the support of outdoor unit (select it according to the actual inst allation situation)

1. Select installation location according to the house structure.
2. Fix the support of outdoor unit on the selected location with expansion screws.

NOTICE

• Take sufficient protective measures when installin g the outdoor unit.
• Make sure the support can withstand at least fou r times of the unit weight.
• The outdoor unit should be installed at least 1.18″ above the floor in order to install drain joint. (for the model with heating tube, the installation height should be no less than 7.87″.)
• For the unit with cooling capacity of 2300W ~ 5000W, 6 expansion screws are needed ; for the unit with cooling capacity of 6000W~8000W,
• 8 expansion screws are needed; for the unit with cooling capacity of 10000W~16000W, 10 expansion screws are needed.

Step 2:
Install drain joint (only for some models)

1. Connect the outdoor drain joint into the hole on the chassis, as shown in the picture below.
2. Connect the drain hose into the drain vent.
   NOTICE
   As for the shape of drainage joint, please refer to the current product. Do not install the drainage joint in the severe cold area. Otherwise,it will be frosted and then cause malfunction.

Step 3:
Fix outdoor unit

1. Place the outdoor unit on the support.
2. Fix the foot holes of outdoor unit with bolts.

Step 4:
Connect indoor and outdoor pipes

1. Remove the screw on the right handle of out- door unit and then remove the handle.
2. Remove the screw cap of valve and aim the pipe joint at the bellmouth of pipe.
3. Pretighten the union nut with hand.
4. Tighten the union nut with torque wrench by referring to the sheet below.
   Hex nut diameter| Tightening torque(N .m)
   ---|---
   1/4”| 15~20
   3/8”| 30~40
   1/2”| 45~55
   5/8”| 60~65
   3/4”| 70~75

Step 5:
Connect outdoor electric wire

1. Remove the wire clip; connect the power connection wire and signal control wire (only for cooling and heating unit) to the wiring terminal according to the color; fix them with screws.
   NOTICE: The wiring board is for reference only, please refer to the actual one.

2. Fix the power connection wire and signal control wire with wire clip (only for cooling and heating unit).
   NOTICE: After tighten the screw, pull the power cord slightly to check if it is firm.
   Never cut the power connection wire to prolong or shorten the distance.

Step 6: Neaten the pipes

1. The pipes should be placed along the wall, bent reasonably and hidden possibly. Min. semidiam eter of bending the pipe is 4″.
2. If the outdoor unit is higher than the wall hole, you must set a U-shaped curve in the pipe before pipe goes into the room, in order to prevent rain from getting into the room.

NOTICE

• The through-wal height of drain hose shoul not be higher than the outlet pipe hole of in- door unit.
• The water outlet can’t be placed in water in order to drain smoothly.
• Slant the drain hose slightly downwards. The drain hose can’t be curved, raised and fluctuant, etc.

Test and operation

Use vacuum pump

1. Remove the valve caps on the liquid valve and gas valve and the nut of the refrigerant charging vent.
2. Connect the charging hose of the piezometer to the refrigerant charging vent of gas valve and then connect the other charging hose to the vacuum pump.
3. Open the piezometer completely and operate for 10-15min to check if the pressure of the piezo- meter remains in -0.1MPa.
4. Close the vacuum pump and maintain this status for 1-2min to check if the pressure of the piezo- meter remains in -0.1MPa. If the pressure de- creases, there may be leakage.
5. Remove the piezometer, and open the valve core Of liquid valve and gas valve completely with the inner hexagon spanner.
6. Tighten the screw caps of valves and refrigerant charging vent.
7. Reinstall the handle.

Leakage detection

1. With leakage detector:
   Check if there is leakage with leakage detector.

2. With soap water:
   If a leakage detector is not available, please use soap water for leakage detection. Apply soap water at the suspected position and keep the soap water for more than 3min. If there are air bubbles coming out of this position, there’s a leakage.

Check after installation

●   Check according to the following requirement after finishing installation.

Items to be checked| Possible malfunction
Has the unit been installed firmly?| The unit may drop, shake or emit noise.
Have you done the refri- gerant leakage test?| It may cause insufficient cooling(heating) capacity.
Is heat insulation of pipe- line sufficient?| It may cause condensation and water dripping.
Is water drained well?| It may cause condensation and water dripping.
Is the voltage of power supply according to the voltage marked on the nameplate?| It may cause malfunction or damage the parts.
Is electric wiring and pip- eline installed correctly?| It may cause malfunction or damage the parts.
Is the unit grounded securely?| It may cause electric leakage.
Does the power cord fol- low the specification?| It may cause malfunction or damage the parts.
Is there any obstruction in the air inlet and outlet?| It may cause insufficient cooling(heating) capacity.
The dust and sundries caused during installation are removed?| It may cause malfunction or damage the parts.
The gas valve and liquid valve of connection pipe are open completely?| It may cause insufficient cooling (heating) capacity.
Is the inlet and outlet of piping hole been covered?| It may cause insufficient cooling (heating) capacity or waste electricity.

Test operation

1. Preparation of test operation
2. The client approves the air conditioner.
3. Specify the important notes for air conditioner to the client.
4. Method of test operation
5. Put through the power, press ON/OFF button on the remote controller to start operation.
6. Press MODE button to select AUTO, COOL, DRY , FAN and HEAT to check whether the operation is normal or not.
7. If the ambient temperature is lower than 60° F, the air conditioner can’t start cooling.

Configuration of connection pipe

1.   Standard length of connection pipe: 16.4′, 24.6′, 26.25′.

2.   Min. length of connection pipe is 10′.

3.   Max. length of connection pipe is shown as below.

Max. length of connection pipe

Cooling capacity

| Maximum length of connection pipe (ft)
5000Btu/h (1465W)|
7000Btu/h (2051W)|
9000Btu/h (2637W)|
12000Btu/h (3516W)| 65.6
18000Btu/h (5274W)| 82
24000Btu/h (7032W)| 82
28000Btu/h (8204W)|
36000Btu/h (10548W)|
42000Btu/h (12306W)|
48000Btu/h (14064W)|
4. The additional refrigerant oil and refrigerant charging required after prolonging connection pipe.

After the length of the connection pipe is prolonged for 32.8′ at the basis of standard length, you should add
.16 oz of refrigerant oil for each additional 16.4′ of connection pipe.

The calculation method of additional refrigerant charging amount (on the basis of liquid pipe): Additional refrigerant charging amount = prolonged length of liquid pipe × additional refrigerant charging amount per meter
Basing on the length of standard pipe, add refrigerant according to the requirement as shown in the table. The additional refrigerant charging amount per meter is different according to the diameter of liquid pipe. See the following sheet.

Additional refrigerant charging amount for R410A

Model

| ****

SKU#

| Standard Line Set Length| Addi�onal Refrigerant charge (oz/�)
---|---|---|---
GXH09(2.6)LSA4DL2| 1042163| 24.6′| 0.2
GXH12(3.5)LSA4DL2| 1042165| 24.6′| 0.2
GXH09(2.6)LSK4DL2| 1044143| 24.6′| 0.2
GXH12(3.5)LSK4DL2| 1044144| 24.6′| 0.2
GXH18(5.3)LSK4DL2| 1044145| 24.6′| 0.2
GXH24(7.0)LSK4DL2| 1044146| 24.6′| 0.5
GXH09(2.6)LSK4DH2| 1044154| 24.6′| 0.2
GXH12(3.5)LSK4DH2| 1044155| 24.6′| 0.2
GXH18(5.3)LSK4DH2| 1044156| 24.6′| 0.5
GXH24(7.0)LSK4DH2| 1044157| 24.6′| 0.5
GXH30(8.8)LSK4DH2| 1044147| 24.6′| 0.5
GXH36(10.6)LSK4DH2| 1044158| 24.6′| 0.5

Pipe expanding method

NOTICE

Improper pipe expanding is the main cause of refrigerant leakage. Please expand the pipe according to the following steps:

1. A: Cut the pipe

2. Confirm the pipe length according to the distance of indoor unit and outdoor unit.

3. Cut the required pipe with pipe cutter.

4. Remove the burrs
   Remove the burrs with shaper and prevent the burrs from getting into the pipe.

5. Put on suitable insulating pipe

6. Put on the union nut
   Remove the union nut on the indoor connection pipe and outdoor valve; install the union nut on the pipe.

7. Expand the port
   Expand the port with expander. NOTICE
   “A” is different according to the diameter, please refer to the sheet below:Outer diameter (inch)| A(inch)
   ---|---
   Max| Min
   Φ6 – 6.35(1/4″)| .05″| .027″
   Φ9 – 9.52(3/8″)| .06″| .039″
   Φ12-12.7(1/2″)| .070″| .039″
   Φ15.8-16(5/8″)| .09″| .086″

8. Inspection
   Check the quality of expanding port. If there is any blemish, expand the port again according to the steps above.

Working temperature range

1. GWC09QBXB-A3DNC4B/0
2. GWH09QBXB-A3DNC4B/0
3. GWC09QBXB-D3DNC4B/0
4. GWH09QBXB-D3DNC4B/0
5. GWC12QCXB-A3DNC4B/0
6. GWH12QCXB-A3DNC4B/0
7. GWC12QCXB-D3DNC4B/0
8. GWH12QCXB-D3DNC4B/0
9. GWC18QDXD-D3DNCAA/0
10. GWH18QDXD-D3DNC4A/0
11. GWC18ATDXD-D3DNA1A/0
12. GWH18ATDXD-D3DNA1A/0
13. GWC24QEXF-D3DNC4C/0
14. GWH24QEXF-D3DNC4C/O

The operating temperature range (outdoor temperature) for cooling is -18°C(0°F)~48°C(118°F); foR heat pump unit is -25°C(-13°F) ~ 48°C(118°F).

• GWC09QCXB-A3DND4B/O
• GWH09QCXB-A3DND4B/O
• GWC09QCXB-D3DND4B/O
• GWH09QCXB-D3DND4B/O
• GWC18QDXE-D3DNB2A/O
• GWH18QDXE-D3DNB2A/O
• GWC24QEXF-D3DND4D/O
• GWH24QEXF-D3DND4D/O
• 30K, 36K

NOTE
The operating temperature range (outdoor temperature) for cooling is -20°C (-4°F) ~ 50°C (122°F); for heat pump unit is -25°C (-13°F) ~ 50°C (122°

• GWCO9AGCXD-A3DNA1A/0
• GWH09AGCXD-A3DNA1A/0
• GWCO9AGCXB-D3DNA1A/0
• GWH09AGCXD-D3DNA1A/0
• GWC12AGCXD-A3DNA1A/0
• GWH12AGCXD-A3DNA1A/0
• GWC12AGCXD-D3DNA1A/0
• GWH12AGCXD-D3DNA1A/0
• GWC18AGDXF-D3DNA1A/0
• GWH18AGDXF-D3DNA1A/0
• GWC24AGEXH-D3DNA1A/0

NOTE

The operating temperature range (outdoor temperature) for cooling is -29°C(-20°F)~50°C(122°F); for heat pump unit is -30°C(-22°F) ~ 50°C(122°F).
Speci cations & illustrations subject to change without notice or incurring obligations. O’Fallon, MO (07/23) © Nortek Global HVAC, LLC 2023. All Rights Reserved. 905F-0723 (Replaces 905F-1022)

References

• HVAC Manufacturers | Nortek Global HVAC

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