Table of Contents
Related Manuals for Mitsubishi Electric MXZ-6D120VA
Summary of Contents for Mitsubishi Electric MXZ-6D120VA
- Page 1 Split-type Air-Conditioner MXZ-6D120VA For INSTALLER Installation Manual English • This manual only describes the installation of outdoor unit. When installing the indoor unit, refer to the installation manual of indoor unit.
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Page 2: Before Installation
Required Tools for Installation CONTENTS Phillips screwdriver Flare tool for R40A Level Gauge manifold for R40A . BEFORE INSTALLATION ............ Scale Vacuum pump for R40A 2. OUTDOOR UNIT INSTALLATION ..........4 Utility knife or scissors Charge hose for R40A 3. FLARING WORK AND PIPE CONNECTION ....... 5 Torque wrench Pipe cutter with reamer 4. PURGING PROCEDURES, LEAK TEST, AND TEST RUN ..5 Wrench (or spanner) 5. RELOCATION AND MAINTENANCE .......... 7 4 mm hexagonal wrench 1. BEFORE INSTALLATION 1-1. THE FOLLOWING SHOULD ALWAYS BE OBSERVED FOR SAFETY • Be sure to read “THE FOLLOWING SHOULD ALWAYS BE OBSERVED FOR SAFETY” before installing the air conditioner. -
Page 3: Selecting The Installation Location
1-3. SELECTING OPTIONAL DIFFERENT-DIAMETER JOINTS If the diameter of connection pipe does not match the port size of outdoor unit, use optional different-diameter joints according to the following table. (Unit: mm (inch)) Optional different-diameter joints (port size of outdoor unit → diameter of connection pipe) Port size of outdoor unit 6.35 (/4) → 9.52 (3/8) : PAC-493PI MXZ-6D Liquid / Gas 9.52 (3/8) → 2.7 (/2) : MAC-A454JP 9.52 (3/8) → 5.88 (5/8) : PAC-SG76RJ A UNIT 6.35 (/4) / 2.7 (/2) 2.7 (/2) → 9.52 (3/8) : MAC-A455JP 2.7 (/2) → 5.88 (5/8) : MAC-A456JP B - F UNIT 6.35 (/4) / 9.52 (3/8) Refer to the installation manual of indoor unit for the diameter of connection pipe of indoor unit. 1-4. SELECTING THE INSTALLATION LOCATION • Where it is not exposed to strong wind. • Where airflow is good and dustless. -
Page 4: Installation Diagram
1-5. INSTALLATION DIAGRAM ACCESSORIES After the leak test, apply insulat- Check the following parts before installation. ing material tightly so that there is no gap. () Drain socket When the piping is to be at- PARTS TO BE PROVIDED AT YOUR SITE tached to a wall containing metals (tin plated) or metal netting, use (A) Power supply cord* a chemically treated wooden piece 20 mm or thicker between (B) Indoor/outdoor unit connecting wire* the wall and the piping or wrap 7 (C) Extension pipe... -
Page 5: Outdoor Unit Installation
2. OUTDOOR UNIT INSTALLATION 2-1. INSTALLING THE UNIT • Be sure to fix the unit’s legs with bolts when installing it. • Be sure to install the unit firmly to ensure that it does not fall by an earthquake or a gust. • Refer to the figure in the right for concrete foundation. • Do not use the drain socket and the drain caps in the cold region. Drain may freeze and it makes the fan stop. Fix here with Anchor leg M0 bolts. Make the setting Anchor both length Anchor both pitch depth deeper. Make with wider. (Unit: mm) Terminal block 2-2. CONNECTING WIRES FOR OUTDOOR UNIT for power supply ) Remove the service panel. 2) Loosen terminal screw, and connect indoor/outdoor unit connecting wire (B) from the indoor unit correctly on the terminal block. Be careful not to make mis-wiring. Fix the wire to the terminal block securely so that no part of its core is appeared, and no external force is conveyed... -
Page 6: Flaring Work And Pipe Connection
3. FLARING WORK AND PIPE CONNECTION 3-1. FLARING WORK ) Cut the copper pipe correctly with pipe cutter. (Fig. , 2) 2) Completely remove all burrs from the cut cross section of pipe. (Fig. 3) No good Good • Aim the copper pipe downward while removing burrs to prevent Copper burrs from dropping in the pipe. pipe 3) Remove flare nuts attached to indoor and outdoor units, then put them on pipe having completed burr removal. (Not possible to put them on after flaring work.) Tilted Uneven Burred 4) Flaring work (Fig. 4, 5). Firmly hold copper pipe in the dimension Fig. Fig. 2 shown in the table. Select A mm from the table according to the tool... - Page 7 4-2. GAS CHARGE Stop valve Perform gas charge to unit. Liquid ) Connect gas cylinder to the service port of stop valve. Union pipe 2) Perform air purge of the pipe (or hose) coming from refrigerant gas cylinder. 3) Replenish specified amount of the refrigerant, while operating the air condi- Union tioner for cooling. Indoor Outdoor unit unit Note: Union Stop valve with In case of adding refrigerant, comply with the quantity specified for the refrigerat- Gas Union service port pipe ing cycle. Refrigerant gas CAUTION: cylinder operating valve When charging the refrigerant system with additional refrigerant, be sure to use Gauge manifold (for R40A)
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Page 8: Test Run
4-6. TEST RUN • Test runs of the indoor units should be performed individually. See the installation manual coming with the indoor unit, and make sure all the units oper- ate properly. • If the test run with all the units is performed at once, possible erroneous connections of the refrigerant pipes and the indoor/outdoor unit connecting wires cannot be detected. Thus, be sure to perform the test run one by one. About the restart protective mechanism Once the compressor stops, the restart preventive device operates so the compressor will not operate for 3 minutes to protect the air conditioner. Wiring/piping correction function This unit has a wiring/piping correction function which corrects wiring and piping combination. When there is possibility of incorrect wiring and piping combi- nation, and confirming the combination is difficult, use this function to detect and correct the combination by following the procedures below. Make sure that the following is done. • Power is supplied to the unit. • Stop valves are open. Note: During detection, the operation of the indoor unit is controlled by the outdoor unit. During detection, the indoor unit automatically stops operation. This is not a malfunction. Procedure Press the piping/wiring correction switch (SW87) minute or more after turning on the power supply. LED indication during detection: • Correction completes in 0 to 20 minutes. When the correction is completed, its result is shown by LED indication. Details are described in the following table. LED LED2 LED3 • To cancel this function during its operation, press the piping/wiring correction switch (Red)