Mitsubishi Electric MXZ-4C80VA Installation Manual
Split-type air-conditioner
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Also See for MXZ-4C80VA:
- Installation manual (16 pages) ,
- Service manual (396 pages) ,
- Service manual (392 pages)
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Summary of Contents for Mitsubishi Electric MXZ-4C80VA
- Page 1 Split-type Air-Conditioner MXZ-4C80VA MXZ-5C100VA 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
Indoor/outdoor Max. height Refrigerant adjust- Power supply per indoor unit / per indoor unit / Voltage quency capacity connecting wire difference *9 ment A *0 for multi-system for multi system MXZ-4C80VA 25 m / 70 m 25 / 70 4-core 230 V 50 Hz 25 A 3-core 2.5 mm 5 m 20 g/m .0 / .5 mm MXZ-5C00VA 25 m / 80 m 25 / 80 * Connect to the power switch which has a gap of 3 mm or more when *6 Refrigerant pipe bending radius must be 00 mm or more. -
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- MXZ- Liquid / Gas 9.52 (3/8) → 2.7 (/2) : MAC-454JP 4C80VA 5C00VA 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 - D UNIT B - E 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. -
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 (2) Drain cap When the piping is to be at- tached to a wall containing metals (tin plated) or metal netting, use PARTS TO BE PROVIDED AT YOUR SITE a chemically treated wooden piece 20 mm or thicker between (A) Power supply cord* the wall and the piping or wrap 7 (B) Indoor/outdoor unit connecting wire*... -
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. Anchor leg Fix here with M0 bolts. Anchor both length Anchor both pitch Make the setting (Unit: mm) depth deeper. Make with wider. 2-2. CONNECTING WIRES FOR OUTDOOR UNIT ) 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 Terminal block not to make mis-wiring. Fix the wire to the terminal block securely so... -
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 With this function, the operating noise of the outdoor unit can be lowered by reducing the operation load, for example, during nighttime in COOL mode. However, please note that the cooling and heating capacity may lower if this function is activated. * Changing the setting is required to activate this function. Please explain about this function to your customers and ask them whether they want to use it. [How to lower the operating noise] ) Be sure to turn off the main power for the air conditioner before making the setting. 2) Set the “3” of SW on the outdoor controller board to ON to enable this function. 3) Turn on the main power for the air conditioner. Lower the operating noise 4-5. CHANGING THE AMPERE LIMIT • Description of the function: With this function, the amount of current that flows in the outdoor unit can be changed. MXZ-5C00VA MXZ-4C80VA Note: Use this function only when the amount of current exceeds the allowed value. 0.5 A 0.5 A 5.5 A 5.5 A [How to change the ampere limit] ) Be sure to turn off the main power for the air conditioner before making the setting. Factory setting Factory setting 2) Make the setting referring to the table below.
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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 5 minutes. When the correction is completed, its result is shown by LED indication. Details are described in the following table. • To cancel this function during its operation, press the piping/wiring correction switch (Red) 2 (Yellow) 3 (Green)