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Mitsubishi Electric Mr. SLIM PKA-M-LAL Series Installation Manual
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Mitsubishi Electric Mr. SLIM PKA-M-LAL Series Installation Manual

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Air Conditioners
PKA-M·LAL Series
English
INSTALLATION MANUAL
FOR INSTALLER

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Summary of Contents for Mitsubishi Electric Mr. SLIM PKA-M-LAL Series

  • Page 1 Air Conditioners PKA-M·LAL Series English INSTALLATION MANUAL FOR INSTALLER...

  • Page 2: Table Of Contents

    Contents For safe and correct use, read this manual and the outdoor unit installation manual thoroughly before installing the air-conditioner unit. 1. Safety precautions .....................1 5. Drainage piping work ..................7 2. Installation location ....................2 6. Electrical work ....................8 3. Installing the indoor unit ..................3 7.

  • Page 3: Installation Location

    1. Safety precautions 1.1. Before installation (Environment) Caution: • Do not use the unit in an unusual environment. If the air conditioner is • When the room humidity exceeds 80% or when the drainpipe is clogged, installed in areas exposed to steam, volatile oil (including machine oil), or water may drip from the indoor unit. Do not install the indoor unit where sulfuric gas, areas exposed to high salt content such as the seaside, the such dripping can cause damage. performance can be significantly reduced and the internal parts can be • When installing the unit in a hospital or communications office, be damaged. prepared for noise and electronic interference. Inverters, home appliances, • Do not install the unit where combustible gases may leak, be produced, high-frequency medical equipment, and radio communications equipment flow, or accumulate. If combustible gas accumulates around the unit, fire or can cause the air conditioner to malfunction or breakdown. The air explosion may result. conditioner may also affect medical equipment, disturbing medical care, • Do not keep food, plants, caged pets, artwork, or precision instruments in and communications equipment, harming the screen display quality.

  • Page 4: Installing The Indoor Unit

    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. PART LOCATION OF ACCESSORY QUANTITY NUMBER SETTING Mount board Tapping screw 4 × 25 Felt tape Band Fix at the back of the unit Wireless remote controller Remote controller holder Alkali batteries (size AAA) Tapping screw 3.5 ×...
  • Page 5 3. Installing the indoor unit 3.2.3. Installing the wall mounting fixture ► Since the indoor unit weighs near 13 kg, selection of the mounting location requires thorough consideration. If the wall does not seem to be strong enough, reinforce it with boards or beams before installation. ► The mounting fixture must be secured at both ends and at the centre, if possible. Never fix it at a single spot or in any nonsymetrical way. (If possible, secure the fixture at all the positions marked with a bold arrow.) Warning: If possible, secure the fixture at all positions indicated with a bold arrow. Caution: • The unit body must be mounted horizontally. • Fasten at the holes as shown by the arrows. (Fig. 3-4) A Min. 119 mm (669 mm or greater with optional drain pump installation) B Min. 224 mm : Points to be fastened (5 points) C Min.
  • Page 6 3. Installing the indoor unit Left and left rear piping (Fig. 3-8) 4. Drain hose replacement → See 5. Drainage piping work. Be sure to replace the drain hose and the drain cap for the left and rear left piping. Dripping may occur if you forget to install or fail to replace these parts. C Drain cap 1) Be careful that the drain hose is not raised, and that contact is not made with the indoor unit box body.

  • Page 7: Installing The Refrigerant Piping

    4. Installing the refrigerant piping 4.1. Precautions 45°±2° For devices that use R32/R410A refrigerant • Use 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. Use refrigerant pipes with the thicknesses specified in the table below. Make sure the insides of the pipes are clean and do not contain any harmful contaminants such as sulfuric compounds, oxidants, debris, or dust. Warning: Fig. 4-1 W hen installing or relocating, or servicing the air conditioner, use only the specified refrigerant written on outdoor unit to charge the refrigerant lines. A Flare cutting dimensions Do not mix it with any other refrigerant and do not allow air to remain in the Flare dimensions øA lines.

  • Page 8: Drainage Piping Work

    4. Installing the refrigerant piping 4.4. Refrigerant piping (Fig. 4-4) Indoor unit 1. Remove the flare nut and cap of the indoor unit. 2. Make a flare for the liquid pipe and gas pipe and apply refrigerating machine oil (available from your local supplier) to the flare sheet surface. 3.

  • Page 9: Electrical Work

    5. Drainage piping work ♦ Storing in the piping space of the indoor unit (Fig. 5-3) * When the drain hose will be routed indoors, be sure to wrap it with commercially available insulation. * Gather the drain hose and the refrigerant piping together and wrap them with the supplied felt tape 3. * Overlap the felt tape 3 at one-half of the tape width.
  • Page 10 6. Electrical work 6.1.1. Indoor unit power supplied from outdoor unit The following connection patterns are available. The outdoor unit power supply patterns vary on models. 1:1 System A Outdoor unit power supply B Earth leakage breaker C Wiring circuit breaker or isolating switch D Outdoor unit E Indoor/outdoor unit connecting cords F Wired remote controller (option) G Indoor unit...
  • Page 11 6. Electrical work 6.1.2. Separate indoor unit/outdoor unit power supplies (For PUHZ/PUZ application only) The following connection patterns are available. The outdoor unit power supply patterns vary on models. 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 D Outdoor unit E Indoor unit/outdoor unit connecting cables F Remote controller...
  • Page 12 6. Electrical work 6.2. Remote controller 6.2.1. For wired remote controller 1) 2 remote controllers setting If 2 remote controllers are connected, set one to “Main” and the other to “Sub”. For setting procedures, refer to “Function selection of remote controller” in the installation manual for the remote controller. 6.2.2. For wireless remote controller 1) Installation area •...
  • Page 13 6. Electrical work 6.3. Function settings Service menu Settings menu 6.3.1. By wired remote controller Test run Function setting Input maintenance info. 1 (Fig. 6-8) settings Check • Select “Service” from the Main menu, and press the [SELECT] button. Others • Select “Settings” from the Service menu, and press the [SELECT] button. Service menu: Main menu: Cursor...
  • Page 14 6. Electrical work Function table Select unit number “Grp.” Mode no. Setting no. Initial setting setting Mode Settings 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 15: Test Run

    7. Test run 7.1. Before test run ► After completing installation and the wiring and piping of the indoor and outdoor ► Do not carry out this test on the control wiring (low voltage circuit) terminals. Warning: units, check for refrigerant leakage, looseness in the power supply or control wiring, wrong polarity, and no disconnection of one phase in the supply.
  • Page 16 7. Test run Step 4 Confi rm the operation of the outdoor unit fan. The speed of the outdoor unit fan is controlled in order to control the performance of the unit. Depending on the ambient air, the fan will rotate at a slow speed and will keep rotating at that speed unless the performance is insuffi cient. Therefore, the outdoor wind may cause the fan to stop rotating or to rotate in the opposite direction, but this is not a problem.
  • Page 17 7. Test run 7.3. Self-check ■ Refer to the installation manual that comes with each remote controller for details. • Refer to the following tables for details on the check codes. (Wireless remote controller) [Output pattern A] Beeper sounds Beep Beep Beep Beep Beep...
  • Page 18 7. Test run [Output pattern B] Errors detected by unit other than indoor unit (outdoor unit, etc.) Wired remote Wireless remote controller controller Symptom Remark Beeper sounds/OPERATION Check code INDICATOR lamp blinks (Number of times) Indoor/outdoor unit communication error (Transmitting error) (Outdoor unit) Compressor overcurrent interruption U3, U4 Open/short of outdoor unit thermistors...

  • Page 19: Easy Maintenance Function

    8. Easy maintenance function Maintenance data, such as the indoor/outdoor unit’s heat exchanger temperature and compressor operation current can be displayed with “Smooth maintenance”. * This cannot be executed during test operation. * Depending on the combination with the outdoor unit, this may not be supported by some models. • Select “Service” from the Main menu, and press the [SELECT] button. Check menu Error history Diagnosis •...
  • Page 20 Travellers Lane, Hatfield, Herts., AL10 8XB, England, U.K. Polish Branch Krakowska 50, PL-32-083 Balice, Poland MITSUBISHI ELECTRIC TURKEY ELEKTRİK ÜRÜNLERI A.Ş. Şerifali Mah. Kale Sok. No: 41 34775 Ümraniye, İstanbul / Turkey Please be sure to put the contact address/telephone number on this manual before handing it to the customer.