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Related Manuals for Mitsubishi Electric Mr.Slim SLZ-KF25VA3
Summary of Contents for Mitsubishi Electric Mr.Slim SLZ-KF25VA3
- Page 1 Air Conditioners SLZ-KF25, KF35, KF50, KF60VA3 INSTALLATION MANUAL FOR INSTALLER English For safe and correct use, please read this manual and the outdoor unit installation manual thoroughly before install- ing the air-conditioner unit.
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Page 2: Table Of Contents
Contents 1. Safety precautions ..................2 7. Electrical work ....................8 2. Selecting the installation location ..............2 8. Test run ......................15 3. Installation diagram ..................3 9. System control ..................... 17 4. Installing the indoor unit ................. 3 10. -
Page 3: Installation Diagram
3. Installation diagram 3.1. Indoor unit (Fig. 3-1) (mm) A Ceiling B Grille C Obstacle D Min. 1000 mm E Min. 500 mm (Entire periphery) If setting the maintenance space for E, be sure to leave is a minimum of 700 mm. Warning: Mount the indoor unit on a ceiling strong enough to withstand the weight of the unit. 3.2. Outdoor unit Fig. 3-1 Refer to the outdoor unit installation manual. 4. Installing the indoor unit 4.1. Check the indoor unit accessories (Fig. 4-1) The indoor unit should be supplied with the following accessories. Accessory name Q’ty Installation template... - Page 4 4. Installing the indoor unit 4.3. Installation of duct (in case of fresh air intake) (mm) (Fig. 4-3) 120° Caution: Linkage of duct fan and air conditioner ln case that a duct fan is used, be sure to make it linked with the air conditioner when outside air is taken. Do not run the duct fan only. It can cause dew drop. Making a duct flange (prepared locally) • The shape of duct flange shown left is recommended. Installation of duct flange • Cut out the cutout hole. Do not knock it out. • Install a duct flange to the cutout hole of the indoor unit with three 4 × 10 tapping Duct flange connection screws which should be prepared locally. Installation of duct (should be prepared locally) • Prepare a duct of which inner diameter fits into the outer diameter of the duct flange. • In case that the environment above the ceiling is high temperature and high humidity, wrap the duct in a heat insulate to avoid causing dew drop on the wall. Remove the drain pan insulation. A Duct flange recommended shape F 3-Tapping screw hole (Thickness:0.8 or more) G ø73.4 cutout hole B 3-ø5 hole...
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Page 5: Refrigerant Piping Work
5. Refrigerant piping work 5.1. Precautions For devices that use 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: W hen installing or relocating, or servicing the air conditioner, use only the specified refrigerant written on outdoor unit to charge the refrigerant lines. - Page 6 5. Refrigerant piping work 5.3.5. Check (Fig. 5-6) • Compare the flared work with a figure in right side hand. • If flare is noted to be defective, cut off the flared section and do flaring work again. a Smooth all around f Scratch on flared plane b Inside is shining without any scratches g Cracked c Even length all around h Uneven d Too much i Bad examples e Tilted Fig. 5-6 5.4. Refrigerant and drainage piping locations (Fig. 5-7) A Drain pipe B Ceiling C Grille D Refrigerant pipe (liquid)
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Page 7: Drainage Piping Work
6. Drainage piping work 6.1. Drainage piping work (Fig. 6-1) Max. 20 m • Use VP25 (O. D. ø32 PVC TUBE) for drain piping and provide 1/100 or more 1.5–2 m downward slope. • Be sure to connect the piping joints using a polyvinyl type adhesive. • Observe the figure for piping work. • Use the included drain hose to change the extraction direction. 1 Correct piping C Support metal 2 Wrong piping K Air bleeder A Insulation (9 mm or more) L Raised B Downward slope (1/100 or more) -
Page 8: Electrical Work
7. Electrical work 7.1. 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 unit/outdoor unit connecting cables F Remote controller G Indoor unit Indoor unit model Indoor unit-Outdoor unit 3 × 1.5 (polar) Indoor unit-Outdoor unit earth 1 × Min. 1.5 Indoor unit earth 1 × Min. 1.5 Remote controller-Indoor unit 2 × 0.3 (Non-polar) Indoor unit (Heater) L-N —... - Page 9 7. Electrical work 7.2. Indoor unit (Fig. 7-1) (Fig. 7-2) (Fig. 7-3) Work procedure 1. L oosen the two screws securing the electric component cover, and then slide and remove the cover. 2. Route the wires along the wiring routes and through the wire inlets in the electric component box. (Procure the power supply cord and indoor/outdoor unit connecting cable locally.) 3. S ecurely connect the power supply cord and the indoor/outdoor unit connecting cable to the terminal block. 4. S ecure the wires with the cable straps inside the electric component box. Secure the wires with cable straps as cushioning components so that no stress is applied to the connecting sections of the terminal block when tension is generated.
- Page 10 7. Electrical work 7.2.1. Installing the i-See sensor and signal receiver Before installing the grille, connect the junction wires included with the grille acces- sories and place them in the connector box. 1 Remove the two screws securing the wire cover of the main unit, and then open the cover. 2 Route the wires of the i-See sensor and signal receiver through the wire inlets in the electric component box as shown in the diagram and around the bushings on the side of the main unit. (Fig. 7-4) When routing the wires, open the clamp securing the grille junction wire, and then secure the grille junction wire and the wires of the i-See sensor and signal receiver with the clamp. Fig. 7-4 3 Remove the one screw securing the connector box cover, and then open the cover. (Fig. 7-5) 4 Place the junction wire connector in the connector box. 5 Install the wire cover and connector box cover. Caution: When installing the covers, make sure that the wires do not get pinched. Fit the band securing the junction wires between the ribs on the connector box as shown in the diagram. (Fig. 7-6) A Wire cover B Connector box cover C Connector box D i-See sensor or signal receiver lead wire (Grille accessory) E Band Fig. 7-5 Fig. 7-6 7.3. Remote controller 7.3.1. Wired remote controller 1) Installing procedures Refer to the installation manual that comes with each remote controller for details.
- Page 11 7. Electrical work 4) Initial setting The following settings can be made in the initial setting mode. Item Setting Fig. 7-10 Temperature unit ºC/ºF Time display 12-hour format/24-hour format AUTO mode Single set point/Dual set point Pair No. 0–3 Backlight On/Off 4-1. Switching to the initial setting mode 1. Press the button 1 to stop the air conditioner. 2. Press the button 2. The Function setting screen will be displayed and the function No.
- Page 12 7. Electrical work 7.4. Function settings Service menu Function setting 7.4.1. By wired remote controller Ref. address Test run Input maintenance info. Unit No. Grp./1/2/3/4/All 1 (Fig. 7-11) Function setting • Select “Service” from the Main menu, and press the [SELECT] button. Check Self check • Select “Function setting” with the [F1] or [F2] button, and press the [SELECT] Main menu: Monitor: button. Cursor Cursor Address 2 (Fig. 7-12) • Set the indoor unit refrigerant addresses and unit numbers with the [F1] through [F4] buttons, and then press the [SELECT] button to confi rm the cur- rent setting.
- Page 13 7. Electrical work Function table Select unit number 00 [table 1] Initial set- Mode Settings Mode no. Setting no. setting ting Power failure automatic recovery Not available Available Ο Indoor temperature detecting Indoor unit operating average Ο Set by indoor unit’s remote controller Remote controller’s internal sensor Select unit numbers 01 to 03 or all units (AL [wired remote controller]/07 [wireless remote controller]) Initial set- Mode Settings Mode no. Setting no. setting ting Filter sign 100Hr 2500Hr Ο No filter sign indicator Fan speed Silent Standard...
- Page 14 7. Electrical work The current vane setting will appear. Manual vane angle Select the desired outlets from 1 through 4 with the [F1] or [F2] button. • Outlet: "1", "2", "3", "4", and "1, 2, 3, 4, (all outlets)" Press the [F3] or [F4] button to go through the option in the order of "No setting (re- Select: Outlet Angle set)", "Step 1", "Step 2", "Step 3", "Step 4", "Step 5", and "Draft reduction*". Select the desired setting. ■ Vane setting No setting Step 1 Step 2 Step 3 Step 4 Step 5 Manual vane angle Draft All outlets Setting reduction* * Draft reduction The airflow direction for this setting is more horizontal than the airflow direction for the “Step 1” setting in order to reduce a drafty feeling. The draft reduction can be set for only 1 vane.
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Page 15: Test Run
8. Test run 8.1. Before test run ► After completing installation and the wiring and piping of the indoor and ► Do not carry out this test on the control wiring (low voltage circuit) termi- outdoor units, check for refrigerant leakage, looseness in the power sup- nals. ply or control wiring, wrong polarity, and no disconnection of one phase Warning: in the supply. Do not use the air conditioner if the insulation resistance is less than 1.0 MΩ. ► Use a 500-volt megohmmeter to check that the resistance between the power supply terminals and ground is at least 1.0 MΩ. 8.2. Test run 8.2.1. Using wired remote controller ■ Make sure to read operation manual before test run. (Especially items to secure safety) Step 1 Turn on the power. ● Remote controller: The system will go into startup mode, and the remote controller power lamp (green) and “PLEASE WAIT” will blink. While the lamp and message are blinking, the remote controller cannot be operated. Wait until “PLEASE WAIT” is not displayed before operating the remote controller. After the power is turned on, “PLEASE WAIT” will be displayed for approximately 2 minutes. ● Indoor controller board: LED 1 will be lit up, LED 2 will be lit up (if the address is 0) or off (if the address is not 0), and LED 3 will blink. ● Outdoor controller board: LED 1 (green) and LED 2 (red) will be lit up. (After the startup mode of the system finishes, LED 2 will be turned off.) If the outdoor controller board uses a digital display, [- ] and [ -] will be displayed alternately every second. - Page 16 8. Test run Step 5 Stop the test run. 1 Press the [ON/OFF] button to stop the test run. (The Test run menu will appear.) Note: If an error is displayed on the remote controller, see the table below. If the unit is operated continuously during a test run, the unit stops after 2 hours. [Output pattern A] Errors detected by indoor unit Wired remote Wireless remote controller controller Beeper sounds/OPERATION Symptom Remark Check code INDICATOR lamp blinks (Num- ber of times) Intake sensor error Pipe (TH2) sensor error Pipe (TH5) sensor error E6, E7 Indoor/outdoor unit communication error Drain sensor error / Float switch connector open Drain pump error Forced compressor error Freezing/Overheating protection operation Communication error between indoor and outdoor units Pipe temperature error Remote controller signal receiving error —...
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Page 17: System Control
8. Test run 8.2.2. Using the wireless remote controller Turn on the power to the unit at least 12 hours before the test run. Press the button for 5 seconds. (Fig. 8-5) (Perform this operation when the remote controller display is turned off.) Press the button. [TEST] and the current operation mode are displayed. (Fig. 8-5) Press the button to activate cool mode, then check whether cool air is blown out from the unit. Press the button to activate heat mode, then check whether warm air is blown out from the unit. - Page 18 10. Installing the grille 10.2. Preparing to attach the grille (Fig. 10-2) • 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. • Make sure that the opening in the ceiling is within the following tolerances: 576 × 576 - 610 × 610 • Make sure that step A is performed within 37-42 mm. Damage could result by failing 576 - 610 to adhere to this range. Fig. 10-2 A Main unit B Ceiling C Gauge (Accessory) D Ceiling opening dimensions 10.2.1. Removing the intake grille (Fig. 10-3) • Slide the levers in the direction indicated by the arrow 1 to open the intake grille. • Unlatch the hook that secures the grille.
- Page 19 10. Installing the grille 10.3.3. Connecting the wires 1 Remove the one screw securing the connector box cover, and then open the cover. 2 Securely connect the junction wire connector of the vane motor and the panel vane motor wire connector in the connector box. (Fig. 10-8) There are two vane motor connectors: one blue connector and one orange con- nector. Make sure that the connector colors match when connecting them. 3 Close the connector box cover. When closing the connector box cover, slide the cover in the direction indicated by the arrow and make sure that the projection is firmly inserted. (Fig. 10-9) A Connector box cover B Connector box C Securing screw D Junction connector E Wire connector for the vane motor Fig. 10-8 Fig. 10-9 F Band Caution: • Place the band securing the panel vane motor wire in the connector box as shown in the diagram. (Fig. 10-10) • When closing the connector box cover, make sure that the wires do not get pinched. Fig. 10-10 10.3.4. Wiring the i-See sensor corner panel and signal receiver • Install the i-See sensor and signal receiver at the corners of the panel at the loca- tions stamped with “○” or “□”. (The positions may be reversed.) • Route the i-See sensor and signal receiver wires through the square holes at the corners of the panel and install them.
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Page 20: Easy Maintenance Function
10. Installing the grille 10.4. Locking the up/down airflow direction (Fig. 10-16) The vanes of the unit can be set and locked in on up or down orientation 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. In addition, the actual position of the vanes may differ from the position indicated on the remote controller. 1 Turn off the main power switch. Injuries and or an electrical shock may occur while the fan of the unit is rotating. A Button 2 Disconnect the connector for the vane motor of the vent that you want to lock. - Page 24 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 BUILDING, 2-7-3, MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAPAN BH79A415H01 Printed in Thailand...