Carrier 38GL2M12G Installation Manual
Also see for 38GL2M12G: Installation manualInstallation manual
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GB - 738GL_M…G R-410AE N G L I S HWhere required, the unit must be charged with additionalrefrigerant.Additional charge must be added using electronic scales andthe service port (5/16") on the suction line.Charge refrigerant only in liquid phase (bottle turned upsidedown or using the specific connection on bottle; see page 1).Connection to unitInsufficient tightening torque will cause gas leaks.Overtightening the fittings will damage the tube flaring andcause gas leaks.• Make certain the refrigerant pipes and the electricalconnection lines between the indoor and the outdoor unit havethe same colours and reference codes (A, A1, A2, B, B1, B2)using the special adhesive references supplied.Flaring the ends of the tubingRemove protective caps from copper tube ends.Position tube end downward, cut the tube to the requested lengthand remove the burrs with a reamer.Do not leave system open to atmosphere any longer than minimumrequired for installation.Oil in the compressor is extremely susceptible to moistureabsorption.Always keep ends of tubing sealed during installation.The maximum residual quantity of oil used for tubing is 40 mg/10 m.Remove flare nuts from the unit connections and place them on thetube end.Flare the tube with the flaring tool.Flare end must not have any burrs or imperfections.The length of the flared walls must be uniform.The unit can be installed: on the floor; on the wall using the bracket kit.Connect tubing in accordance with the limits shown on Table II(Connections).Finger-tighten the fitting several turns, then tighten it with a wrenchby applying the tightening torque indicated in the table.12 Adjustable wrenchor torque wrenchTightening torqueValve Flare nut Valve cap Pressure port cap Valve needle Pressure portWrench mm Nm Wrench mm Nm Wrench mm Nm Wrench mm Nm Wrench mm Nm1/4” 17 18 23 20 18 16 - 18 Allen (hex.) 5 9 – 0.343/8” 22 42 23 20 18 16 - 18 Allen (hex.) 5 9 – 0.341/2” 26 55 29 40 18 16 - 18 Allen (hex.) 5 13 – 0.34LLRefrigerant connections |
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