Air-Conditioners SLZ- KA25, KA35, KA50VA KA25, KA35, KA50VAL INSTALLATION MANUAL FOR INSTALLER English For safe and correct use, please read this installation manual thoroughly before installing the air-conditioner unit. INSTALLATIONSHANDBUCH FÜR INSTALLATEURE Deutsch Zum sicheren und ordnungsgemäßen Gebrauch der Klimaanlage das Installationshandbuch gründlich durchlesen.
2. Selecting the installation location 2.3. Wireless remote controller mounting (For SLZ-KA25/KA35/KA50VAL) • Place of mounting In rooms where inverter type fluorescent lamps are used, the signal from the • Where it is easy to operate and easily visible. wireless remote controller may not be received. •...
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4. Installing the indoor unit 4.2. Ceiling openings and suspension bolt installation (mm) locations (Fig. 4-2) • Using the installation template (top of the package) and the gauge (supplied as an accessory with the grille), make an opening in the ceiling so that the main unit can be installed as shown in the diagram.
4. Installing the indoor unit 4.5. Unit suspension procedures (Fig. 4-5) Suspend the main unit as shown in the diagram. 1. In advance, set the parts onto the suspension bolts in the order of the washers (with insulation), washers (without insulation) and nuts (double). Min.
5. Refrigerant piping work a Copper tubes 5.2. Flaring work b Good 90° • Main cause of gas leakage is defect in flaring work. c No good Carry out correct flaring work in the following procedure. d Tilted e Uneven 5.2.1.
5. Refrigerant piping work • Apply a thin coat of refrigeration oil on the seat surface of pipe. (Fig. 5-10) • For connection first align the center, then tighten the first 3 to 4 turns of flare nut. • Use tightening torque table below as a guideline for indoor unit side union joint section, and tighten using two wrenches.
6. Drainage piping work 1. Connect the drain socket (supplied with the unit) to the drain port. (Fig. 6-2) (mm) (Affix the tube using PVC adhesive then secure it with a band.) 2. Install a locally purchased drain pipe (PVC pipe, O.D. ø32). (Affix the pipe using PVC adhesive then secure it with a band.) 3.
7. Electrical work • Perform wiring as shown in the diagram to the lower left. (Procure the cable locally) (1) SLZ-KA25/KA35/KA50 (Fig. 7-4) (1:1 SYSTEM) Indoor terminal block Make sure to use cables of the correct polarity only. A Connecting cable (3 core) Earth wire (green/yellow) Cable 3-core 1.5 mm , in conformity with Design 245 IEC 57.
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8. Installing the grille 8.2. Preparing to attach the grille (Fig. 8-2) • With the gauge supplied with this kit, adjust and check the positioning of the unit relative to the ceiling. If the unit is not properly positioned in the ceiling, there may be air leaks, condensation may form, or the up/down vanes may not operate cor- rectly.
8. Installing the grille 8.3.4. Wire connection (Fig. 8-8) • Be sure to connect the unit to the connector (white:10-pole/red:9-pole). Next, at- tach the white glass tube that comes with the main unit so that the tube covers the connector. Close the opening of the glass tube with the band. •...
9. Installing the remote controller 9.1. Wireless remote controller (Fig. 9-1) 9.1.1. Installation area • Area in which the remote controller is not exposed to direct sunshine. • Area in which there is no nearby heating source. • Area in which the remote controller is not exposed to cold (or hot) winds. •...
10.Test run 10.1. Before test run 10.2. AUTO RESTART FUNCTION s After installation of indoor and outdoor units, and piping and electric wiring Indoor controller board work, recheck that the unit is free from leaks of refrigerant, loosened con- This model is equipped with the AUTO RESTART FUNCTION. nections, and incorrect polarity.
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10.Test run 10.4.2. Wireless remote controller 1 Turn ON the power. 2 While pressing both the MODE SELECT button and TOO COOL button on the remote controller at the same time, press the RESET button. 3 Release the RESET button. 4 Release the other two buttons.
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10.Test run • On wireless remote controller 2 The continuous buzzer sounds from receiving section of indoor unit. 3 Blink of operation lamp • On wired remote controller 1 Check code displayed in the LCD. • If the unit cannot be operated properly after the above test run has been performed, refer to the following table to remove the cause. Symptom Cause Wired remote controller...
11.Maintenance 11.1. Gas charge (Fig. 11-1) 1. Connect gas cylinder to the service port of stop valve (3-way). 2. Execute air purge of the pipe (or hose) coming from refrigerant gas cylinder. 3. Replenish specified amount of refrigerant, while running the air conditioner for cooling.
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336/ EEC EU regulations: 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 Thailand BG79U393H01...
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