AC Pro GMV-ND07PLS/A-T(U) Installation Manual

Contents

AC Pro GMV-ND07PLS/A-T(U) Installation Manual Manual pdf 31 page image

26Size of EXV box for GMV-N192U/A-T(U) Unit: in. Multi Variable Air Conditioners Indoor Unit1013.12.3 Installation notice◆Make sure that the EXV box is installed upwards.◆Make sure there is enough free space in front and in the side of the box for future maintenance.◆Make sure that the other parts such as electrical box, tie wraps and wires are protected fromdirect brazing flames during brazing.◆The EXV box is required to be installed in a vertical direction within the range of 90±15° (notallowed for horizontal work). Welding the connection tubes first before refrigerant pipes to avoid face-down soldering3.12.4 Selection of air switch and power cordModel Power Supply Circuit BreakerCapacity (A)MinimumSectional Area ofGround WireAWGMinimumSectional Areaof PowerCord AWGGMV-N12U/A-T(U)208/230V-1ph-60Hz15 AWG18 AWG18GMV-N24U/A-T(U) 15 AWG18 AWG18GMV-N48U/A-T(U) 15 AWG18 AWG18GMV-N96U/A-T(U) 15 AWG18 AWG18GMV-N192U/A-T(U) 15 AWG18 AWG184 Installation of Connection Pipe①. Conform to the following principles during pipe connection: Connection pipe should be as short as possible, so is theheight difference between indoor and outdoor units. Keep the number of bends as little as possible. Radius ofcurvature should be as large as possible.②. Weld the connection pipe between indoor and outdoor units. Please strictly follow the requirements for weldingprocess. Rosin joint or pin hole is not allowed.③. When laying the pipe, be careful not to distort it. Radius of bending parts should be over 8in. Note that pipes cannotbe repeatedly bent or stretched; otherwise the material will get harder. Do not bend or stretch the pipe for more than3 times at the same position.4.1 Flaring Process3.11.2 Installation notice3.11.3 Selection of air switch and power cord Make sure that the EXV box is installed upwards. Make sure there is enough free space in front and in the side of the box for future maintenance. Make sure that the other parts such as electrical box, tie wraps and wires are protected fromdirect brazing flames during brazing. The EXV box is required to be installed in a vertical direction within the range of 90±15° (notallowed for horizontal work). Welding the connection tubes first before refrigerant pipes to avoidfacedown soldering.Model Power Cord Size Circuit BreakerCapacity (A)Minimum Sectional Areaof Ground Wire AWGMinimum Sectional Areaof Power Cord AWGGMV-N12U/A-T(U)208-230V~60Hz 15 AWG18 AWG18GMV-N24U/A-T(U)GMV-N48U/A-T(U)GMV-N96U/A-T(U)GMV-N192U/A-T(U)4 INSTALLATION OF CONNECTION PIPECAUTION1. Conform to the following principles during pipe connection: Connection pipe should be as short as possible, so is theheight difference between indoor and outdoor units. Keep the number of bends as little as possible. Radius ofcurvature should be as large as possible.2. Weld the connection pipe between indoor and outdoor units. Please strictly follow the requirements for weldingprocess. Rosin joint or pin hole is not allowed.3. When laying the pipe, be careful not to distort it. Radius of bending parts should be over 8in. Note that pipes cannotbe repeatedly bent or stretched; otherwise the material will get harder. Do not bend or stretch the pipe for more than3 times at the same position.