Related Manuals for Mitsubishi Electric SEZ-A12
Summary of Contents for Mitsubishi Electric SEZ-A12
- Page 1 Air-Conditioners SEZ-A12, A18, A24AR INSTALLATION MANUAL FOR INSTALLER English For safe and correct use, please read this installation manual thoroughly before installing the air-conditioner unit.
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Page 2: Table Of Contents
Contents 1. Safety precautions ................... 2 9. Air filter installation ................. 11 2. Selecting the installation location ............. 2 10. Test run ....................13 3. Installation diagram & Accessories ............3 11. Maintenance ..................14 4. Indoor unit installation ................4 12. -
Page 3: Installation Diagram & Accessories
3. Installation diagram & Accessories I SEZ-A12/A18/A24AR (mm) Air inlet (rear side) dimensions Air inlet (bottom side) dimensions PLATE (A) 77.5 7×100=700 24-ø2.9 holes 5027 1016 77.5 100 7×100=700 24-ø2.9 holes 7×100=700 9×2-ø2.9 holes 1070 (1070) 20 or more (10) 50... -
Page 4: Indoor Unit Installation
3. Installation diagram & Accessories 3.3. Checking the indoor unit accessories (Fig. 3-3) Check that the indoor unit is equipped with the following parts and accessories: A Refrigerant pipe parts 1 Pipe cover (for refrigerant piping joint) Small diameter × 1 Large diameter ×... -
Page 5: Refrigerant Piping Work
• This unit has flared connections on both indoor and outdoor sides. (Fig. 5-2) • Refrigerant pipes are used to connect the indoor and outdoor units as shown in the figure below. SEZ-A12:Ø9.52 SEZ-A18:Ø12.7 • Insulate both refrigerant and drainage piping completely to prevent condensation. -
Page 6: Flaring Work
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. -
Page 7: Drainage Piping Work
5. Refrigerant piping work 5.4. Purging procedures leak test PURGING PROCEDURES Remove the gage manifold valve quickly from the service port of the stop valve. Connect the refrigerant pipes (both the liquid and gas pipes) between the indoor After refrigerant pipes are connected and evacuated, fully open all stop valves on and the outdoor units. -
Page 8: Electrical Work
7. Electrical work (1) SEZ-A12AR (1:1 SYSTEM) 7.1. Power supply (Fig. 7-1) Electrical specification Input capacity Main Switch/Fuse (A) Power supply SEZ-A12AR SEZ-A18AR SEZ-A24AR (1 phase ~/N, 220-240V, 50Hz) Warning: • Do not use intermediate connection of the power cord, etc. or an extension cord or connect many devices to one AC outlet. - Page 9 Make sure to use cables of the correct polarity only. 1 Connecting cable 2 Power supply cable 4 core VVF cable 3 core with ground IEC cord • SEZ-A12:1.0 mm or more • SEZ-A12:1.0 mm or more • SEZ-A18, A24:1.5 mm or more •...
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Page 10: Duct Work
7. Electrical work 7.4. Outdoor unit (Fig. 7-8) A Cord clamp. • Connect cable from the indoor unit correctly on the terminal-block. B Service panel • Use the same terminal block and polarity as is used with the indoor unit. C Fixing screws •... -
Page 11: Air Filter Installation
9. Air filter installation 9.1. Confirmation of enclosed parts (Fig. 9-1) • Please ensure all the parts shown below are present before starting installation. 1 Filter × 1 Cut out 2 Filter rail × 1 3 Filter rail × 1 4 ST. - Page 12 9. Air filter installation 9.4. Filter installation points (Rear air intake) (Fig. 9-4) 1. Insert the filter into rail 2 2. Hook the filter onto rail 3 A Control box B Drain pan D Filter E Rail 2 F Rail 3 Fig.
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Page 13: Test Run
10.Test run 10.1. Before test run s After completing installation and the wiring and piping of the indoor and outdoor 3. After connecting the wires to the compressor, the compressor will start to warm units, check for refrigerant leakage, looseness in the power supply or control up after power is supplied. -
Page 14: Maintenance
10.Test run 10.4. AUTO RESTART FUNCTION • If the main power is turned off or a power failure occurs while AUTO START/ STOP timer is active, the timer setting is cancelled. As this model is equipped This model is equipped with the AUTO RESTART FUNCTION. with the auto restart function, the air conditioner should start operating at When the indoor unit is controlled with the remote controller, the operation mode, the same time that a power has restored. -
Page 15: System Control (Fig. 12-1)
12.System control (Fig. 12-1) 1 Wiring from the Remote Control This wire is connected to terminal block for remote controller of the indoor unit (non- polar). 2 When a Different Refrigerant System Grouping is Used. Up to 4 refrigerant systems can be controlled as one group using the MA remote controller. - Page 16 This product is designed and intended for use in the residential, commercial and light-industrial environment. • Low Voltage Directive 73/23/ EEC The product at hand is • Electromagnetic Compatibility Directive 89/ based on the following 336/ EEC EU regulations: Please be sure to put the contact address/telephone number on this manual before handing it to the customer.