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Air-Conditioners
PKA-A·GA
PKA-A·GAL

INSTALLATION MANUAL

For safe and correct use, read this manual and the outdoor unit installation manual thoroughly before installing
the air-conditioner unit.
MANUAL DE INSTALACIÓN
Para un uso correcto y seguro, lea detalladamente este manual y el manual de instalación de la unidad exterior
antes de instalar la unidad de aire acondicionado.
FOR INSTALLER
PARA EL INSTALADOR
English
Español

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Table of Contents
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Summary of Contents for Mitsubishi Mr.Slim PKA-A-GA

  • Page 1: Installation Manual

    Air-Conditioners PKA-A·GA PKA-A·GAL 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. MANUAL DE INSTALACIÓN PARA EL INSTALADOR Español Para un uso correcto y seguro, lea detalladamente este manual y el manual de instalación de la unidad exterior antes de instalar la unidad de aire acondicionado.
  • Page 2: Table Of Contents

    • 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: Installation Location

    2. Installation location 2.1. Outline dimensions (Indoor unit) (Fig. 2-1) Select a proper position allowing the following clearances for installation and mainte- nance. (mm) (inch) Models Min. 30 Max. 130 Min. 180 Min. 50 Min. 150 A12, A18 9-1/4 13-3/8 Min.
  • Page 4 3. Installing the indoor unit 3.2.3. Installing the wall mounting fixture s Since the indoor unit weighs near 30 kg, 66 lbs 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. s The mounting fixture must be secured at both ends and at the centre, if A Min.
  • Page 5: Installing The Refrigerant Piping

    4. Installing the refrigerant piping 4.1. Precautions 4.1.1. For devices that use R410A refrigerant • Use ester oil, ether oil, 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.
  • Page 6: Drainage Piping Work

    4. Installing the refrigerant piping (inch) 4.3. Positioning refrigerant and drain piping 1 Position of refrigerant and drain piping (Fig. 4-2) • The drain pipe can be cut midway to meet the on-site conditions. A (Total length of flexible hose) D Drain hose B Liquid pipe E Left-side piping...
  • Page 7: Electrical Work

    6. Electrical work 6.1. Indoor unit (Fig. 6-1) 1. Remove the corner box. 2. Install each wire into the unit. 3. Open the front grill, remove 1 tapping screw and remove the terminal block cover. A Terminal block cover 4. Connect each wire properly to the terminal block. •...
  • Page 8 6. Electrical work 6.1.2. Separate indoor unit/outdoor unit power supplies (A-control application) The following connection patterns are available. The outdoor unit power supply patterns vary on models. 1:1 System A Outdoor unit power supply B Wiring circuit breaker or isolating switch C Outdoor unit D Indoor unit/outdoor unit connecting cords E Remote controller (Only for PKA-A·GA)
  • Page 9 6. Electrical work 6.1.3. K-control application The following connection patterns are available. The outdoor unit power supply patterns vary on models. 1:1 System A Outdoor unit power supply <For heat pump models> <For cooling only models> B Wiring circuit breaker or isolating switch C Outdoor unit D Indoor unit/outdoor unit connecting cords E Remote controller (Only for PKA-A·GA)
  • Page 10 6. Electrical work 6.2. Remote controller 6.2.1. For wired remote controller (inch) 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. 1-3/16 1-3/16 s Procure the following parts locally: 1-37/64 Two piece switch box...
  • Page 11: Function Settings

    6. Electrical work 4) Assigning a remote controller to each unit (Fig. 6-7) 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 12: Test Run

    6. Electrical work Function table Select unit number 00 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 13 7. Test run 7.2.3. Using SW4 in outdoor unit Refer to the outdoor unit installation manual. 7.3. Self-check 7.3.1. Wired remote controller (Fig. 7-3) 1 Turn on the power. CHECK 2 Press the [CHECK] button twice. 3 Set refrigerant address with [TEMP] button if system control is used. ERROR CODE 4 Press the [ON/OFF] button to stop the self-check.
  • Page 14 7. Test run [Output pattern B] Errors detected by unit other than indoor unit (outdoor unit, etc.) Wired remote Wireless remote controller controller Beeper sounds/OPERATION Symptom Remark INDICATOR lamp flashes Check code (Number of times) Indoor/outdoor unit communication error (Transmitting error) (Outdoor unit) Compressor overcurrent interruption U3, U4 Open/short of outdoor unit thermistors...
  • Page 15: Easy Maintenance Function (Option)

    8. Easy maintenance function [This function only for A-control] Display example (Comp discharge temperature 147°F) By using the maintenance mode, you can display many types of maintenance data on the remote controller such as the heat exchanger temperature and compressor current consumption for the indoor and outdoor units.
  • 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: TOKYO BLDG., 2-7-3, MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAPAN Printed in Japan BG79U874H01...

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Mr.slim pka-a-gal

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