Nortek GXC24-36MSK4DH Owner's Manual

Dc inverter u-match series for r410a unitary split air conditioner, outdoor unit

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Original Instructions

Air Conditioners

DC Inverter U-match Series for R410A Unitary Split

Air Conditioner

Models:

Outdoor Unit

GXC24-36MSK4DH

GXC48-60MSK4DH

Please read this owner's manual carefully before operation and retain for future

reference. Specifications & illustrations subject to change without notice or incurring

obligations. If you have lost the owner's manual, please visit www.NortekHVAC.com

for electronic version.

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Summary of Contents for Nortek GXC24-36MSK4DH

Page 1 DC Inverter U-match Series for R410A Unitary Split Air Conditioner Models: Outdoor Unit GXC24-36MSK4DH GXC48-60MSK4DH Please read this owner’s manual carefully before operation and retain for future reference. Specifications & illustrations subject to change without notice or incurring obligations. If you have lost the owner’s manual, please visit www.NortekHVAC.com...
Page 3 To Users Thank you for selecting our product. Please read this instruction manual carefully before installing and using the product, so as to master and correctly use the product. In order to guide you to correctly install and use our product and achieve expected operating effect, we hereby instruct as below: 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...
Page 4 After verification, the defect of product is directly caused by corrosive gas. After verification, defects are due to improper operation during transportation of product. Operate, repair, maintain the unit without abiding by instruction manual or related regulations. After verification, the problem or dispute is caused by the quality specification or performance of parts and components that produced by other manufacturers.
Page 5 Contents 1 Safety Precautions ............1 2 Product Introduction ............5 2.1 Operating Range ..............5 2.2 Standard Accessories .............5 2.3 Optional Accessories..............5 3 Installation ................5 3.1 Installation Preparation ............5 3.2 Unit Installation ..............11 3.3 Electrical Installation ............17 3.4 Check after Installation ............
Page 6 DC Inverter U-match Series for R410A Unitary Split Air Conditioner 1 Safety Precautions This product can’t be installed at corrosive, inflammable or explosive environment or the place with special requirements, such as kitchen. Otherwise, it will affect the normal operation or shorten the service life of the unit, or even cause fire hazard or serious injury.
Page 7 DC Inverter U-match Series for R410A Unitary Split Air Conditioner Electrical shock hazard: Failure to follow this warning could result in personal injury or death. Before installing, modifying, or servicing system, main electrical disconnect switch must be in the OFF position. There may be more than one disconnect switch. Lock out and tag switch with a suitable warning label.
Page 8 DC Inverter U-match Series for R410A Unitary Split Air Conditioner (8) During installation, use the specialized accessories and components, otherwise water leakage, electric shock or fire hazard may occur. (9) Please install the air conditioner in a secure place that can withstand the weight of air conditioner.
Page 9 DC Inverter U-match Series for R410A Unitary Split Air Conditioner (6) Never install the air conditioner in the following places: a) Places with oil smoke or volatile liquid: plastic parts may deteriorate and fall off or even cause water leakage. b) Places with corrosive gas: copper pipe or the welding parts may be corroded and cause refrigerant leakage.
Page 10 DC Inverter U-match Series for R410A Unitary Split Air Conditioner 2 Product Introduction 2.1 Operating Range Cooling — 39.2 ° F(4 ° C)~118.4 ° F (48 ° C) Outdoor temperature 2.2 Standard Accessories Outdoor unit accessories Name Appearance Q'ty Usage To plug the unused drain Drain plug hole...
Page 11 (7) Away from any object that may get the air conditioner generating noise. (8) Install the outdoor unit at a place where condensate can be easily drained. 3.1.2 Unit Dimension GXC24-36MSK4DH...
Page 12 DC Inverter U-match Series for R410A Unitary Split Air Conditioner Unit: inch(mm) Dimensions Model 20-7/8 32-1/4 19-1/8 18-1/8 GXC24-36MSK4DH (820) (610) (486) (460) (940) (530) GXC48-60MSK4DH Unit: inch(mm) Dimensions Model 16-1/8 56-3/8 24-7/8 13-7/8 12-5/8 GXC48-60MSK4DH (940) (410) (1430) (632)
Page 13 DC Inverter U-match Series for R410A Unitary Split Air Conditioner 1) When one outdoor unit is to be installed. Unit: inch(mm) inch (mm) ≥3.9 (100) A,B,C ≥3.9 (100) ≥3.9 (100) ≥11.8 (300) ≥3.9 (100) ≥39.3 (1000) A,B,C,D ≥11.8 (300) ≥5.9(150) ≥5.9(150) ≥39.3 (1000) ≥39.3 (1000)
Page 14 DC Inverter U-match Series for R410A Unitary Split Air Conditioner 2) When two or more outdoor units are to be installed side by side. Unit: inch(mm) ≥ 15.7 (400) ≥ 15.7 (400) inch (mm) A,B,C ≥11.8 (300) ≥11.8 (300) ≥39.3 (1000) A,B,C,E ≥11.8 (300) ≥11.8 (300)
Page 15 DC Inverter U-match Series for R410A Unitary Split Air Conditioner 3) When outdoor units are installed in rows. Unit: inch(mm) ≥ 7.8 (200) ≥ 157.4 (4000) ≥ 7.8 (200) ≥ 78.7 (2000) (400) (400) ≥ 177.1 (4500) ≥ 23.6 (600) ≥...
Page 16 Size of fitting Maximum Biggest drop between pipe(inch) Item pipe indoor and outdoor Model Liquid length units feet(m) feet(m) pipe pipe GXC24-36MSK4DH Φ3/8 Φ3/4 98.4(30) 49.2(15) GXC48-60MSK4DH...
Page 17 DC Inverter U-match Series for R410A Unitary Split Air Conditioner Connection pipe should adopt water-proof insulating material. Its wall thickness should be 0.01(0.5) - 0.03(1.0) inch (mm) and the pipe wall should be able to withstand 6.0MPa. The longer the connection pipe is the worse cooling performance it has. 3.2.2.2 Pipe Flaring Cut the connection pipe with a pipe cutter.
Page 18 DC Inverter U-match Series for R410A Unitary Split Air Conditioner When bending the pipe, do not bend it excessively, otherwise it will get broken. As shown beside, use a sharp cutter to cut the heat insulating pipe and bend it after the pipe is exposed. After bending, place...
Page 19 DC Inverter U-match Series for R410A Unitary Split Air Conditioner 3.2.2.4.2 Screw Connection Tightening torque (N·m) Pipe diameter (inch) Ф1/4 15-30 Ф3/8 35-40 Ф1/2 45-50 Ф5/8 60-65 Ф3/4 70-75 Ф7/8 80-85 3.2.2.5 Sealing of the Knock-off Hole As for the built-in valve model, during the installation process for connection pipe, when the connection pipe is passing through the knock-off hole, conduct sealing with insulated cotton in the knock-off hole of outdoor unit to prevent small animals from entering.
Page 20 The evacuation duration depends on the unit’s capacity, generally. Model Time(min) GXC24-36MSK4DH GXC48-60MSK4DH And verify if the pressure gauge at the low pressure side of the manifold valve assembly reads -0.1MPa, if not, it indicates there is leak somewhere. Then, close the switch fully and then stop the vacuum pump.
Page 21 Standard pipe Additional refrigerant charge pipe Model length amount for extra pipe length GXC24-36MSK4DH 24.6 (7.5) ft (m) ≤3.1 (9.5) ft (m) 1.05 (30) oz (g/m) GXC48-60MSK4DH 3.2.5 Installation of Drain Pipe 3.2.5.1 Outdoor Side Drainage Pipe If the outdoor unit is underneath the indoor unit, arrange the pipeline according to the following diagram.
Page 22 DC Inverter U-match Series for R410A Unitary Split Air Conditioner 2) The whole pipeline should be wound together to avoid water returning to the room. 3) Use saddles to fix the whole pipeline onto the wall. 3.3 Electrical Installation 3.3.1 Requirement and Notice on Electrical Installation The electrical installation for the air conditioner should observe the following requirements: The electrical installation must be conducted by professionals in compliance with...
Page 23 Model Power supply protection ampacity 208/230V- GXC24-36MSK4DH 1Ph-60Hz 208/230V- GXC48-60MSK4DH 1Ph-60Hz 3.3.3 Connection of Power Cords and Thermostat Wires For solid wires (as shown below): 1) Use wire cutters to cut off the wire end and then peel away about 0.9 (25) inch (mm) of the insulation layer.
Page 24 DC Inverter U-match Series for R410A Unitary Split Air Conditioner 4) Locate the round terminal conduit. Use a screwdriver to replace it and tighten up the terminal screw (as shown below). Unit: mm(inch) How to connect the thermostat wires and power cords. Lead the thermostat wires and power cords through the insulation tube (as shown in the following figure).
Page 25 DC Inverter U-match Series for R410A Unitary Split Air Conditioner Wires of outdoor units Single-phase unit: GXC24-36MSK4DH Single-phase unit: GXC48-60MSK4DH High and low voltage wires should be led through different rubber rings of the ①. electric box cover. Do not bundle up the thermostat wires or lay them side by side, otherwise errors ②.
Page 26 Remove the big handle/front panel of the outdoor unit and insert one end of the thermostat cord and the power cord to the terminal board. Single-phase: GXC24-36MSK4DH...
Page 27 DC Inverter U-match Series for R410A Unitary Split Air Conditioner Single-phase: GXC48-60MSK4DH 3.4 Check after Installation Check Items after Installation Possible events due to improper Check items installation The unit may fall down, vibrate or Is the main body installed securely? produce noise.
Page 28 DC Inverter U-match Series for R410A Unitary Split Air Conditioner Possible events due to improper Check items installation Is the voltage consistent with that stated on The unit may fail or its components the nameplate? may get burned. The unit may fail or its components Are the wires and pipes installed correctly? may get burned.
Page 29 DC Inverter U-match Series for R410A Unitary Split Air Conditioner 4 Maintenance 4.1 Failures Not Caused by Faults of the AC If your air conditioner fails to function normally, please first check the following items before maintenance: Problem Cause Corrective measure If you turn off the unit and then immediately turn it on, in order to protect the compressor and...
Page 30 Check the above items and adopt the corresponding corrective measures. If the air conditioner continues to function poorly, please stop the air conditioner immediately and contact NORTEK’s authorized local service center. Ask our professional service staff to check and repair the unit.
Page 31 Do not repair the air conditioner by yourself. Improper maintenance will cause ②. electric shock or fire hazard. Please contact NORTEK’s authorized service center and send for professional service staff to repair. If the LED displayer on mainboard of outdoor unit displays an error code, please refer to the error code meaning stated in the following table.
Page 32 DC Inverter U-match Series for R410A Unitary Split Air Conditioner Error code Error Low pressure sensor error ODU jumper cap error 4.3 Unit Maintenance Only professionals are allowed to carry on daily maintenance. ①. Before contacting any wire, make sure power is cut off. ②.
Page 33 If the outdoor unit is rusty, coat the rusty location with paint to prevent it from expanding. 4.3.5 Components Replacement Components are available in NORTEK agency or NORTEK distributors nearby. 4.4 Notice on Maintenance 4.4.1 Information on Servicing The manual shall contain specific information for service personnel who shall be instructed to undertake the following when servicing an appliance that employs a flammable refrigerant.
Page 34 DC Inverter U-match Series for R410A Unitary Split Air Conditioner and to the correct specification. At all times the manufacturer’s maintenance and service guidelines shall be followed. If in doubt consult the manufacturer’s technical department for assistance. The following checks shall be applied to installations using flammable refrigerants: The ventilation machinery and outlets are operating adequately and are not obstructed.
Page 35 DC Inverter U-match Series for R410A Unitary Split Air Conditioner then a permanently operating form of leak detection shall be located at the most critical point to warn of a potentially hazardous situation. 4.4.2.2 Particular Attention Electrical components, the casing is not altered in such a way that the level of protection is affected.
Page 36 DC Inverter U-match Series for R410A Unitary Split Air Conditioner 4.4.5 Charging Procedures In addition to conventional charging procedures, the following requirements shall be followed. Ensure that contamination of different refrigerants does not occur when using charging equipment. Hoses or lines shall be as short as possible to minimize the amount of refrigerant contained in them.
Page 37 DC Inverter U-match Series for R410A Unitary Split Air Conditioner Start the recovery machine and operate in accordance with manufacturer's instructions. Do not overfill cylinders. (No more than 80% volume liquid charge). Do not exceed the maximum working pressure of the cylinder, even temporarily. (10) When the cylinders have been filled correctly and the process completed, make sure that the cylinders and the equipment are removed from site promptly and all isolation valves on the equipment are closed off.
Page 38 When oil is drained from a system, it shall be carried out safely. 4.5 After-Sales Services Any quality or other issues encountered in the purchased air conditioner, please contact the local NORTEK after-sales service department.

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Gxc48-60msk4dh