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Nortek Flex Match Series Owner's Manual

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Nortek Global HVAC, LLC
 Please read this owner's manual carefully before operation and retain it for
future reference
 Specifications & illustrations subject to change without notice or incurring
obligations
 If you have lost the owner's manual, please visit
electronic version.
Flex Match Series
System-Outdoor Unit
Model:
GXH30(8.8)FMK4DH
GXH36(10.6)FMK4DH
GXH42(12.3)FMK4DH
www.NortekHVAC.com
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Summary of Contents for Nortek Flex Match Series

  • Page 1 Nortek Global HVAC, LLC Flex Match Series System-Outdoor Unit Model: GXH30(8.8)FMK4DH GXH36(10.6)FMK4DH GXH42(12.3)FMK4DH  Please read this owner’s manual carefully before operation and retain it for future reference  Specifications & illustrations subject to change without notice or incurring obligations ...
  • Page 2 Preface The Flex Match System uses cutting-edge manufacturing. Please carefully read this manual before installation and operation. Please note the following： (1) This unit measures on the base of UL1995. (2) Flex Match System conforms to design standard: ARI 210240-2008. (3) Strictly follow all instructions listed in the manual.
  • Page 3 User Notice Children and persons with reduced mental, sensory or physical capabilities should not be allowed to operate or maintain this equipment. Children should not play with the appliance. If the power cord is damaged, it must be replaced by a new cord that meets the same standards as the original.

  • Page 4: Table Of Contents

    Contents 1 Safety Precautions ......................1 2.1 Parts List .................................3 2.2 Combinations of outdoor and indoor units ....................4 2.3 Rated working condition ..........................5 2.4 The range of production working temperature .....................5 3 Preparation before Installation ..................6 3.1 Standard parts ..............................6 3.2 Selecting installation site ..........................6 3.3 Piping Connection ............................7 4 Installation Instruction .....................

  • Page 5: Safety Precautions

    Flex match series 1 Safety Precautions WARNING NOTICE: Failure to comply with warning notice could result in property damage, serious personal injury or death. CAUTION NOTICE: Failure to comply with caution notice could result in property damage or personal injury.
  • Page 6 Flex match series 23) Volatile liquid, such as paint thinner or gasoline will damage the unit appearance. Only use soft cloth with a little mild detergent to clean the outer casing of unit. 24) Under cooling mode, please don't set the room temperature too low and keep the temperature difference between indoor and outdoor unit within 5°...

  • Page 7: Parts List

    Flex match series 2 Product Introduction The Flex Match System uses inverter compressor technology. According to change displacement of compressor, stepless capacity regulation within a range of 15%~120% can be realized. Multiple product combinations can be selected with a capacity range from 30KBtu to 42KBtu.

  • Page 8: Combinations Of Outdoor And Indoor Units

    Flex match series 2.2 Combinations of outdoor and indoor units Fig 2 See Fig.2 for Combinations for Outdoor and Indoor Units. For the free match series air conditioning system, one outdoor unit is able to drive up to five indoor units which can be cassette type, duct type, wall-mounted or floor ceiling type.

  • Page 9: Rated Working Condition

    Flex match series 2.3 Rated working condition Table 2 Indoor side state Outdoor side state Dry bulb temp.℉ Wet bulb temp.℉ Dry bulb temp.℉ Wet bulb temp.℉ Rating cooling 80.06 66.92 75.02 Rating Heating 69.98 60.08 43.00 NOTICE 1) The following listed cooling /heating capacity and sound is tested before shipment.

  • Page 10: Preparation Before Installation

    Flex match series 3 Preparation before Installation 3.1 Standard parts Please use the following standard parts supplied by GREE. Table 4 Pars of Outdoor Unit Number name picture Quantity Remark Owner's manual Tube connector subassy 3.2 Selecting installation site 1) (1) Check the support structure to verify that it has sufficient load-carrying capacity to support the weight of the unit, and it can be securely mounted.

  • Page 11: Piping Connection

    Flex match series ＞39 3/8 ＞ 19 2/3 ＞78 3/4 ＞ 19 2/3 ＞78 3/4 unit:inch Fig 3 3.3 Piping Connection The maximum pipe length is shown in the following table. When the distance between units (piping length) is out of the range listed below, normal run of the unit cannot be guaranteed.

  • Page 12: Installation Instruction

    Flex match series 4 Installation Instruction 4.1 Outline and dimension of the outdoor unit GXH30(8.8)FMK4DH Outline dimension and Mounting holes...

  • Page 13: Installation Of The Connection Pipe

    Flex match series GXH36(10.6)FMK4DH & GXH42(12.3)FMK4DH Outline dimension and Mounting holes 4.2 Installation of the Connection Pipe Connecting piping for indoor unit and outdoor unit are in manifold mode. (As shown below). Fig 6 4.2.1 Piping between the Indoor and Outdoor Units (1) If the liquid and gas stop valves listed as A , B, C, D or E have not been connected to the indoor units, please remove the caps with wrench.
  • Page 14 Flex match series Pipe Thickness of Tightening P ip e F la re N u t diameter copper tube torque [NOTE: Convert back to N/M] Φ1/4 inch ≥0.0315 inch 11～22 ft· lbf Φ3/8 inch ≥0.0315 inch 26～29 ft· lbf S p a n n e r Φ1/2 inch...
  • Page 15 Flex match series Allowable Length and Height Fall of the Refrigerant Pipe Table 7 Allowable Value GXH36(10.6)FMK4DH, Fitting Pipe GXH30(8.8)FMK4DH GXH42(12.3)FMK4DH Total length (actual length) of fitting +…+L (M ≤5) 225ft 250ft pipe （X=1，2，3，4,5） Length of farthest fitting pipe (ft)

  • Page 16: Air Purging And Refrigerant Charge

    Flex match series (2)The joints of the indoor unit should be wrapped with the insulating material with no gap allowed on the joint of the indoor unit, as shown in Fig. 9. Thermal insulating layer is required to be wrapped at this part.

  • Page 17: Electric Wiring

    Flex match series (3) As shown in the following figure (Fig. 10), remove the refrigerant inside the indoor unit and refrigerant pipe out with the vacuum pump. Manometer Manometer "HI"Knob "LO"Knob liquid valve Vacuuming pump Connection hose Gas valve Fig 10 (4) When the compressor is not running, charge the R410A refrigerant into the refrigerant pipe from the liquid valve of the outdoor unit (not from the gas valve).
  • Page 18 Flex match series GXH30(8.8)FMK4DH OUTDOOR UNIT INDOOR UNIT A INDOOR UNIT B INDOOR UNIT C INDOOR UNIT D Fig 11 GXH36(10.6)FMK4DH、GXH42(12.3)FMK4DH OUTDOOR UNIT INDOOR UNIT A INDOOR UNIT B INDOOR UNIT C INDOOR UNIT D INDOOR UNIT E Fig 12 4.4.2 Grounding Requirements...
  • Page 19 Flex match series 4.4.4 Wiring of the Power Cord (1). Open the side plate. (2). Connect the power cord to the terminals “L1”, “L2” and to the grounding bolt, and then connect the wiring terminals “N(1),2,3” of the indoor unit to those of the outdoor unit accordingly. Use the green bonding screw to connect the grounding cord.

  • Page 20: Troubleshooting

    Flex match series 5 Troubleshooting 1) In the event of abnormal conditions (like, strong or burning smell), shut off the main power supply immediately and then contact qualified service personnel. Continual us of malfunctioning unit will damage the air conditioning unit and also would cause electric shock or fire hazard.

  • Page 21: Common Malfunctions And Troubleshooting

    Flex match series 6 Common malfunctions and troubleshooting. Please check the following before calling for service Table 10 Conditions Causes The unit will not restart after it has The overload protection switch requires a three stopped. minute delay. The unit does not run As soon as power is turned on.

  • Page 22: Troubleshooting

    Flex match series 7 Troubleshooting The error code will be displayed on the wired controller and the main board of the outdoor unit The meaning of each error, as shown in table 12. Table 12 The indicator display Name of malfunction...

  • Page 23: Maintenance

    Flex match series Flash n times（n=indoor Communication is normal unit number） Often bright Communication failure between indoor unit and （indoor unit all outdoor unit Communication failure） 8 Maintenance Regular check, maintenance, and care should be performed by professional personnel, which will prolong the life of the unit.

  • Page 24: After-Sales Service

    (3) All the instructions listed in this manual have been followed. (4) Warranty will be void if any of the above circumstances. Specifications & illustrations subject to change without notice or incurring obligations. O’Fallon, MO (06/16) © Nortek Global HVAC, LLC 2016. All Rights Reserved. 563E-0616...

This manual is also suitable for:

Gxh30(8.8)fmk4dhGxh36(10.6)fmk4dhGxh42(12.3)fmk4dh

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