York YFGN24BZNRZUH1 Installation And Maintenance Manual

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York YFGN24BZNRZUH1 Installation And Maintenance Manual Manual pdf 23 page image

Installation and Maintenance21Max. Running Current(A): REFER TO NAMEPLATEModel Capacity (Btu/h) PowerSupplyELB Power SourceCable SizeTransmitting CableSizeNominalCurrent (A)NominalSensitiveCurrent (mA)EN60335-1 EN60335-118K 220-240V ~, 50Hz 20 30 23×2.5mm 25×1.5mm24K 220-240V ~, 50Hz 32 30 23×4.0mm 24×1.5mm36K 380-415V 3N~, 50Hz 40 30 25×2.5mm 24×1.5mm48K/55K 380-415V 3N~, 50Hz 32 30 25×2.5mm 24×1.5mm10.5 Electrical Installation● Use an ELB (Electric Leakage Breaker). If not used, it might cause an electric shock or a fire.● Do not operate the system until all the check points have been cleared.(A) Check to ensure that the insulation resistance is more than 2 , by measuring theMΩresistance between ground and the terminal of the electrical parts. If not, do not operate thesystem until the electrical leakage is found and repaired.(B) Check to ensure that the stop valves of the outdoor unit are fully opened and then start thesystem.NOTES:1) Follow local codes and regulations when selecting field wires.2) The wire sizes marked in the table are selected at the maximum current of the unit according to theEuropean Standard, EN60335-1. Use the wires which are not lighter than the ordinary polychloroprenesheathed flexible cord (code designation H07RN-F).When connecting the terminal block using flexible cord, make sure to use the round crimp-style terminalfor connection to the power supply terminal block.Place the round crimp-style terminals on the wires up to the coveredpart and secure in place.When connecting the terminal block using a single corewire, be sure to perform curing.3) When transmitting cable length is more than 15 meters, a larger wire size should be selected.4)Use a shielded cable for the transmitting circuit and connect it to ground.Flexible cordcovered partRound crimp-style terminalTerminalSingle core wire5)In the case that power cables are connected in series, add each unit maximum current and selectwires below.*In the case that current exceeds 63A, do not connect cables in series.6)To be in compliance with EN 61000-3-3, the product shall be connected only to a supply of the systemimpedance:Zsys≤0.27Ω(18Κ), Zsys≤0.123Ω (24Κ). Before connecting the product to public power network，please consult your local power supply authority to ensure the power network meet above requirement.Current I (A) 2Wire Size (mm )i≤6 0.756＜i≤10 110＜i≤16 1.516＜i≤25 2.525＜i≤32 432＜i≤40 640＜i≤63 1063＜i *Selection According to EN60335-1

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