Summary of Contents for Mitsubishi Electric PLA-A-BA4 Series
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Air-Conditioners PLA-A·BA4 INSTALLATION MANUAL FOR INSTALLER English For safe and correct use, read this manual and the outdoor unit installation manual thoroughly before installing the air-conditioner unit.
An incorrectly installed unit may fall down and cause damage or injuries. • Use only accessories authorized by Mitsubishi Electric and ask a dealer or • The unit must be securely installed on a structure that can sustain its weight.
. Installation location Refer to the outdoor unit installation manual. 3. Installing the indoor unit 3.1. Check the indoor unit accessories (Fig. 3-1) The indoor unit should be supplied with the following accessories. Accessory name Q'ty Installation template Washers (with insulation) Washers (without insulation) Pipe cover (for refrigerant piping joint) Small diameter...
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3. Installing the indoor unit 3.4. Branch duct hole and fresh air intake hole (Fig. 3-4) (inch) At the time of installation, use the duct holes (cut out) located at the positions shown in Fig3-4, as and when required. • A fresh air intake hole for the optional multi function casement can also be made. Note: The figure marked with * in the drawing represent the dimensions of the main unit excluding those of the optional multi function casement.
4. Installing the refrigerant piping 4.1. Precautions For devices that use R410A refrigerant • Use ester oil, ether oil or alkylbenzene oil (small amount) as the refrigeration oil applied to the flared sections. • Use C1220 copper phosphorus for copper and copper alloy seamless pipes, to connect the refrigerant pipes.
4. Installing the refrigerant piping 4.3. Indoor unit (Fig. 4-3) Heat insulation for refrigerant pipes: 1 Wrap the enclosed large-sized pipe cover around the gas pipe, making sure that the end of the pipe cover touches the side of the unit. Refrigerant pipe and 2 Wrap the enclosed small-sized pipe cover around the liquid pipe, making sure insulating material...
6. Electrical work 6.1. Indoor unit (Fig. 6-1) 1. Remove the electrical wiring service panel. 2. Remove the electrical box cover. 3. For radio frequency interface. Connect the electric wires securely to CN105(RED) of indoor controller board. (Fig. 6-2) For wired remote controller. Wire the power cable and control cable separately through the respective wiring entries given in the diagram.
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6. Electrical work Indoor unit model PLA-A12, 18, 24, 30 PLA-A36, 42 Minimum circuit ampacity Maximum rating of overcurrent protective device Indoor unit-Outdoor unit 3 × AWG16 (polar) 3 × AWG16 (polar) Indoor unit earth 1 × Min. AWG16 1 × Min. AWG16 Wired remote contoroller-Indoor unit 2 ×...
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6. Electrical work 6.3. Function settings 6.3.1. Function setting on the unit (Selecting the unit functions) 1) For wired remote controller (Fig. 6-6) Mode number Changing the power voltage setting Setting number • Be sure to change the power voltage setting depending on the voltage used. Refrigerant address Go to the function setting mode.
6. Electrical work Function table Select unit number 00 Mode No. Mode Settings Wired remote controller Setting no. Initial setting setting (RF thermostat) Not available Power failure automatic recovery Available (101) Indoor unit operating average Indoor temperature detecting Set by indoor unit’s remote controller (–) Wired remote controller’s internal sensor Not Supported...
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. Test run • Refer to the following tables for details on the check codes. (IR wireless remote controller) [Output pattern A] Beeper sounds Beep Beep Beep Beep Beep Beep Beep OPERATION · · · Repeated INDICATOR lamp blinking pattern Approx.
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. Test run • If the unit cannot be operated properly after the test run has been performed, refer to the following table to remove the cause. Symptom Cause Wired remote controller LED 1, 2 (PCB in outdoor unit After LED 1, 2 are lighted, LED 2 is turned •For about 2 minutes after power-on, operation of the remote For about 2 minutes PLEASE WAIT...
8. System control Refer to the outdoor unit installation manual. . Installing the grille .1. Checking the contents (Fig. -1) • This kit contains this manual and the following parts. Accessory name Q’ty Remarks Grille 950 × 950 (mm), 37-3/8 × 37-3/8 (inch) Screw with captive washer M5 ×...
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. Installing the grille .4.. Temporary installation of the grille (Fig. -6) • Temporarily secure the grille using the bell shaped holes by putting the socket of the grille marked on the corner drain pipe area of the main unit. Main unit * Make sure that the lead wiring of the grille does not get pinched between the Corner drain pipe area...
. Installing the grille 9.7. Installing the intake grille (Fig. 9-10) Note: When reinstalling the corner panels (each with a safety wire attached), con- nect the other end of each safety wire to the grille using a screw (4 pcs, 8) as shown in the illustration.
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This product is designed and intended for use in the residential, commercial and light-industrial environment. Please be sure to put the contact address/telephone number on this manual before handing it to the customer. HEAD OFFICE: TOKYO BLDG., 2-7-3, MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAPAN Printed in Japan RG79D307K02...
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