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Mitsubishi Electric CITY MULTI PLFY-P NAMU-E Series Installation Manual
Mitsubishi Electric CITY MULTI PLFY-P NAMU-E Series Installation Manual

Mitsubishi Electric CITY MULTI PLFY-P NAMU-E Series Installation Manual

Air-conditioners for building application indoor unit

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Air-Conditioners For Building Application
INDOOR UNIT
PLFY-P·NAMU-E
INSTALLATION MANUAL
For safe and correct use, please read this installation manual thoroughly before installing the air-conditioner unit.

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Summary of Contents for Mitsubishi Electric CITY MULTI PLFY-P NAMU-E Series

  • Page 1 Air-Conditioners For Building Application INDOOR UNIT PLFY-P·NAMU-E INSTALLATION MANUAL For safe and correct use, please read this installation manual thoroughly before installing the air-conditioner unit.
  • Page 2 • The terminal block cover panel of the unit must be firmly attached. rectly 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 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) in. (mm) At the time of installation, use the duct holes (cut out) located at the positions shown in following diagram, as and when required. •...
  • Page 5 4. Installing the refrigerant piping 4.1. Precautions 4.1.1. For devices that use R22 refrigerant • Use the refrigeration oil applied to the flared sections. • Use C1220 copper phosphorus, for copper and copper alloy seamless pipes, to connect the refrigerant pipes. Use refrigerant pipes with the thicknesses specified in the table to the below.
  • Page 6 4. Installing the refrigerant piping A Refrigerant pipe and insulating ma- 4.3. Indoor unit (Fig. 4-3) terial Heat insulation for refrigerant pipes: B Pipe cover (large) 1 Wrap the enclosed large-sized pipe cover around the gas pipe, making sure that C Pipe cover (small) the end of the pipe cover touches the side of the unit.
  • Page 7 6. Electrical work A Switch 15 A 6.1. Power supply wiring (Fig. 6-1) B Overcurrent protection 15 A Power cable size (diameter) : more than 1.6 mm (AWG14) C Indoor unit Ground cable size (diameter) : 1.6 mm (AWG14) D Total operating current be less than 15 A * Use copper supply wires.
  • Page 8 6. Electrical work 6.3. Wiring connection (Fig. 6-5) 1. Remove the holder and intake sensor. 2. Remove two service panels. 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 9 6. Electrical work 6.7. Remote controller in. (mm) 1) Installing procedures (1) Select an installing position for the remote controller. (Fig. 6-7) The temperature sensors are located on both remote controller and indoor unit. 1-3/16 1-3/16 s Procure the following parts locally: (30) (30) Two piece switch box...
  • Page 10 7. Test run 7.3. Check of drainage (Fig. 7-2) • During the test run, ensure the water is being properly drained out and that no water is leaking from joints. • Always check this during installation even if the unit is not required to provide cool- ing/drying at that time.
  • Page 11 8. Installing the grille 8.3. Selection of the air outlets 4-directional 3-directional For this grille the discharge direction is available in 11 patterns. Also, by setting the One pattern: 4 patterns: Remote controller to the appropriate settings, you can adjust the air-flow and speed. Factory setting One air outlet fully closed Select the required settings from the Table according to the location in which you...
  • Page 12 8. Installing the grille 8.5. Locking the up/down airflow direction (Fig. 8-9) The vanes of the unit can be set and locked in up or down orientations depending upon the environment of use. • Set according to the preference of the customer. The operation of the fixed up/down vanes and all automatic controls cannot be performed using the remote controller.
  • Page 16 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: MITSUBISHI DENKI BLDG., 2-2-3, MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAPAN Printed in Japan BG79U666H01...