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Table of Contents
Related Manuals for Midea MCA-24HRN2MCA-24CRN2
Summary of Contents for Midea MCA-24HRN2MCA-24CRN2
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Page 1: Air Conditioner
INSTALLATION MANUAL AIR CONDITIONER CASSETTE TYPE MODEL: MCA-24HRN2 MCA-24CRN2 MCA-36HRN2 MCA-36CRN2 MCA-42HRN2 MCA-42CRN2 MCA-48HRN2 MCA-48CRN2 Thank you very much for purchasing our air conditioner, please read this owner's manual carefully before using your air conditioner. -
Page 2: Table Of Contents
CONTENTS PAGE 1. PRECAUTIONS....................1 2. INSTALLATION INFORMATION..............2 3. ATTACHED FITTINGS..................3 4. INSTALLATION PLACE...................4 5. INDOOR UNIT INSTALLATION...............5 6. OUTDOOR UNIT INSTALLATION..............7. INSTALL THE CONNECTING PIPE.............. 8. CONNECT THE DRAIN PIPE.............. -
Page 3: Precautions
PRECAUTIONS SAFETY CONSIDERATIONS Installation and servicing of air conditioning equipment can be hazardous due to system pressure and electric components. Only trained and qualified service personnel should install, repair or service air conditioning equipment. All other operations should be performed by trained service personnel. When working on air conditio- ning equipment, observe precautions in the literature, tags and labels attached to the unit and other safety precautions that may apply. -
Page 4: Installation Information
NOTE Remark per EMC Directive 89/336/EEC For to prevent flicker impressions during the start of the compressor (technical process) ,following installation conditions do apply. 1. The power connection for the air conditioner has to be done at the main power distribution. The distribution has to be of a low impedance, normally the required impedance reaches at a 32 A fusing point. -
Page 5: Attached Fittings
ATTACHED FITTINGS Please check whether the following fittings are of full scope. If there are some attached fittings free from use, please restore them carefully. Installation Fittings Tubing & Fittings 1. Expansible hook..........4 5. Connecting pipe group.......1 MCA-24CRN2 MCA-42(36,48)CRN2 MCA-24HRN2 MCA-42(36,48)HRN2 Liquid-side f9.53mm... -
Page 6: Installation Place
INSTALLATION PLACE CAUTIONS Location in the following places may cause malfunction of the machine.(If unavoidable, please consult your local dealer) a. There is petrolatum existing. b. There is salty air surrounding (near the coast). c. There is caustic gas (the sulfide, for example) existing in the air (near a hot spring). d. -
Page 7: Indoor Unit Installation
INDOOR UNIT INSTALLATION 1. Install the main body A. The existing ceiling (to be horizontal) a. Please cut a quadrangular hole of 880 880mm in the ceiling according to the shape of the installation paper board. (Refer to Chart3, 4) The center of the hole should be at the same position of that of the air conditioner body. - Page 8 The length could be calculated from Chart5 Chart5: Length=H-181+L (in general, L=100mm and is half of the whole length of the installation hook) c. Please adjust the hexangular nuts on the four installation hooks evenly, to ensure the balance of the body.
- Page 9 B. New built houses and ceilings a. In the case of new built house, the hook can be embedded in advance (refer to the A.B mentioned above). But it should be strong enough to bear the indoor unit and will not become loose because of concrete shrinking.
- Page 10 c. Adjust the four panel hook screws to keep the panel horizontal, and screw them up to the ceiling evenly. ( Refer to chart 11 ) d. Regulate the panel in the direction of the arrow in Chart11 slightly to fit the panel's center to the center of the ceiling's opening.
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Page 11: Outdoor Unit Installation
OUTDOOR UNIT INSTALLATION CAUTIONS Keep this unit away from direct radiation of the sun or other heaters. If unavoidable, please cover it with a shelter. In places near coast or with a high attitude where the wind is violent, please install the outdoor unit against the wall to ensure normal performance. -
Page 12: Install The Connecting Pipe
INSTALL THE CONNECTING PIPE CAUTIONS Check whether the height drop between the indoor unit and outdoor unit, the length of refrige- rant pipe, and the number of the bends meet the following requirements: The max height drop........................20m (If the height drop is more than 10m, you had better put the outdoor unit over above the indoor unit.) The length of refrigerant pipe..................less than 30m The number of bends......................less than 15 CAUTIONS... - Page 13 Use the market brass pipe Be sure to use the same insulating materials when you buy the brass pipe (more than 9mm thick). 2. Locate The Pipes Drill a hole in the wall (suitable just for the size of the wall conduit, 53, 71 series diameter is 90mm, and 120,105,140 series diameter is 105 in general), then set on the fittings such as the wall...
- Page 14 Necessary Refrigerant Stow Capacity Capacity MCA-24CRN2 MCA-42(36,48)CRN2 MCA-24HRN2 MCA-42(36,48)HRN2 LENGTH(L) Less than 8m (one-way) Added Refrigerant When Over 8m(one-way) 0.065 (L-8) Table 3 Please record and reserve well the refrigerant stow capacity of your air conditioner for later maintenance. Expel the air with a vacuum pump ( Refer to Chart 25) (please refer to its manual for the way of using manifold value) 1.
- Page 15 7. Disassemble the charge hose from the repair-mouth of stop value A, and fasten the nut. Manifold valve Pressure meter Multi-meter -76 cmHg Hi-lever Lo-lever Charge hose Charge hose Vacuum pump Lo-lever CAUTIONS All the stop values should be opened before test operation. Each air conditioner has two stop values of different sizes on the side of the outdoor unit which operate as Lo-stop value and Hi-stop value, respectively.
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Page 16: Connect The Drain Pipe
CONNECT THE DRAIN PIPE 1. Install the drainpipe of the indoor unit You can use a polyethylene tube as the drainpipe (out-dia.37-39mm, in-dia.32mm). It could be bought at local market or from your dealer. Set the mouth of the drainpipe onto the root of the body's pump-pipe, and clip the drainpipe and the out-let pipe sheath (fittings) together firmly with the out-let pipe clasp (fitting). - Page 17 2. Drainage test Check whether the drainpipe is unhindered New built house should have this test done before paving the ceiling. 1) Remove the test cover, and stow water of about 2000ml to the water receiver through the stow tube. ( Refer to Chart 30) Pump joint Test cover Test mouth...
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Page 18: Wiring
WIRING CAUTION 1. The air conditioner should use separate power supply with rated voltage. 2. The external power supply to the air conditioner should have ground wiring, which is linked to the ground wiring of the indoor and outdoor unit. 3. -
Page 19: Indoor Unit
2. Wiring chart Power Switch/Fuse Power linking wiring (indoor) Indoor Unit Outdoor Unit Weak elec-signal link wiring Strong elec-signal link wiring Chart 33 Please ground air conditioner well. Otherwise, an important grounding may affect anti-jamming performance of whole unit INDOOR UNIT 3-core AWG24 1 N 3 4 5 220~240VAC 50Hz... - Page 20 INDOOR UNIT 3-core AWG24 1 2 3 4 5 6 C1 C B A N Power 380V~ 50Hz 1. H07RN 4X1.0mm 2. H07RN 3X1.0mm 5-core Cable H07RN 5x2.5mm 1. Cooling/Heating type 5-core Cable 2. Cooling only type H07RN 5x2.5mm NOTE: The cooling only type without the links listed by broken line. MCA-42(36,48)CRN2 air conditioner link-circuit MCA-42(36,48)HRN2...
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Page 21: Test Operation
TEST OPERATION 1. The test operation must be carried out after the entire installation has been completed. 2. Please confirm the following points before the test operation: The indoor unit and outdoor unit are installed properly. Tubing and wiring are correctly completed. The refrigerant pipe system is leakage-checked. - Page 22 CS0174N...