Download  Print this page

Mitsubishi Electric PLA-RP-BA Installation Manual

Hide thumbs


For safe and correct use, read this manual and the outdoor unit installation manual thoroughly before installing
the air-conditioner unit.


Table of Contents

  Summary of Contents for Mitsubishi Electric PLA-RP-BA

  • Page 1 Air-Conditioners PLA-RP·BA 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.
  • Page 2: Table Of Contents

    • The terminal block cover panel of the unit must be fi rmly attached. 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.
  • Page 3: Installation Location

    2. 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...
  • Page 4 3. Installing the indoor unit 3.4. Branch duct hole and fresh air intake hole (Fig. 3-4) 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 fi...
  • Page 5: Installing The Refrigerant Piping

    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 refrigera- tion oil applied to the fl ared sections. • Use C1220 copper phosphorus for copper and copper alloy seamless pipes, to connect the refrigerant pipes.
  • Page 6: Drainage Piping Work

    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...
  • Page 7: Electrical Work

    6. Electrical work 6.1. Indoor unit (Fig. 6-1) 1. Remove the electrical wiring service panel. 2. Remove the electrical box cover. 3. Wire the power cable and control cable separately through the respective wiring entries given in the diagram. • Do not allow slackening of the terminal screws. •...
  • Page 8 6. Electrical work 6.1.2. Separate indoor unit/outdoor unit power supplies (For PUHZ application only) The following connection patterns are available. The outdoor unit power supply patterns vary on models. 1:1 System 1:1 System * The indoor power supply terminal kit is required. A Outdoor unit power supply B Earth leakage breaker C Wiring circuit breaker or isolating switch...
  • Page 9: Remote Controller

    6. Electrical work 6.2. Remote controller 6.2.1. For wired remote controller 1) Installing procedures (1) Select an installing position for the remote controller. (Fig. 6-2) The temperature sensors are located on both remote controller and indoor unit. Procure the following parts locally: Two piece switch box Thin copper conduit tube Lock nuts and bushings...
  • Page 10: Function Settings

    6. Electrical work 5) Assigning a remote controller to each unit (Fig. 6-8) Each unit can be operated only by the assigned remote controller. Make sure each pair of an indoor unit PC board and a remote controller is assigned MODEL SELECT to the same pair No.
  • Page 11 6. Electrical work Function table Select unit number 00 Mode Settings Mode no. Setting no. Initial setting setting Power failure automatic recovery Not available Available Indoor temperature detecting Indoor unit operating average Set by indoor unit’s remote controller Remote controller’s internal sensor LOSSNAY connectivity Not Supported Supported (indoor unit is not equipped with outdoor-air intake)
  • Page 12 6. Electrical work Operation buttons (During the fi xed airfl ow direction mode) Press the button with either refrigerant address No., unit No. or outlet No. blinking, ... ON/OFF button Resets the fixed airflow direction mode. Fan Speed button Press for 2 Only the air conditioner with the No.
  • Page 13 6. Electrical work How to fi nd air conditioner No. Each air conditioner has its own refrigerant address No. and unit No. Adjust to the next unit No.with Set Temperature button (Example below). To fi nd air conditioner No. to set, refer to the procedures below. (refrigerant address No.00 is remained.) Air conditioner No.
  • Page 14: Test Run

    7. Test run 7.1. Before test run Do not carry out this test on the control wiring (low voltage circuit) termi- After completing installation and the wiring and piping of the indoor and nals. outdoor units, check for refrigerant leakage, looseness in the power supply or Warning: control wiring, wrong polarity, and no disconnection of one phase in the supply.
  • Page 15 7. Test run • Refer to the following tables for details on the check codes. (Wireless remote controller) [Output pattern A] Beeper sounds Beep Beep Beep Beep Beep Beep Beep OPERATION · · · Repeated INDICATOR lamp blinking pattern Approx. 2.5 sec. 0.5 sec.
  • Page 16 7. 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...
  • Page 17: System Control

    8. System control Refer to the outdoor unit installation manual. 9. Installing the grille 9.1. Checking the contents (Fig. 9-1) • This kit contains this manual and the following parts. Accessory name Q’ty Remarks Grille 950 × 950 (mm) Screw with captive washer M5 ×...
  • Page 18 9. Installing the grille 9.4.2. Temporary installation of the grille (Fig. 9-6) • 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...
  • Page 19: Easy Maintenance Function

    9. 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.
  • Page 22 This product is designed and intended for use in the residential, commercial and light-industrial environment. • Low Voltage Directive 2006/95/EC The product at hand is • Electromagnetic Compatibility Directive based on the following 89/336/ EEC EU regulations: Please be sure to put the contact address/telephone number on this manual before handing it to the customer.