Midea MCA-24CRN2 Installation Manual Download Page 22 | Manualshive

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CS0174N

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Summary of Contents for MCA-24CRN2

Page 1: ...r purchasing our air conditioner please read this owner s manual carefully before using your air conditioner INSTALLATION MANUAL AIR CONDITIONER MODEL MCA 24HRN2 MCA 24CRN2 MCA 36HRN2 MCA 36CRN2 MCA 42HRN2 MCA 42CRN2 MCA 48HRN2 MCA 48CRN2 ...

Page 2: ... 1 2 INSTALLATION INFORMATION 2 3 ATTACHED FITTINGS 3 4 INSTALLATION PLACE 4 5 INDOOR UNIT INSTALLATION 5 6 OUTDOOR UNIT INSTALLATION 9 7 INSTALL THE CONNECTING PIPE 10 8 CONNECT THE DRAIN PIPE 14 9 WIRING 16 10 TEST OPERATION 20 ...

Page 3: ...tions on system turn off main power switch of the unit Electrical shock could cause personal injury This unit shall be installed in accordance with national wiring regulations If the supply cord is damaged it must be replaced by the manufacturer or its service agent or similarly qualified person in order to avoid a hazard The means for disconnection from the supply having a contact separation of a...

Page 4: ...tion 2 Install the indoor unit 3 Install the outdoor unit 4 Install the connecting pipe 5 Connect the drain pipe 6 Wiring 7 Test operation To install properly please read this installation manual at first The air conditioner must be installed by qualified persons When installing the indoor unit or its tubing please follow this manual as strictly as possible When all the installation work is finish...

Page 5: ... 1 9 Out let pipe clasp 1 10 Tightening band 20 11 Drain elbow 1 12 Seal ring 1 13 Wall conduit 1 14 Wall conduit cover 1 Power Signal Wiring Group 15 Power wiring of the indoor unit 1 16 Weak electrical wiring between the indoor and outdoor units 1 Drainpipe Fittings Protect Pipe Fittings Remote controller Its Frame Others 21 Owner s manual 1 22 Installation manual 1 17 Remote controller 1 18 Fra...

Page 6: ...lation of leaves or other seasonal debris It is important that the air flow for the outdoor unit is not impeded as this will result in reduction in heating or cooling performance 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 caus...

Page 7: ...les To balance the ceiling and to avoid vibration please enforce the ceiling when necessary b Please select the position of installation hooks according to the hook holes on the installation board Drill four holes of f12mm 45 50mm deep at the selected positions on the ceiling Then embed the expansible hooks fittings Face the concave side of the installation hooks toward the expansible hooks Determ...

Page 8: ...just the position to ensure the gaps between the body and the four sides of ceiling are even The body s lower part should sink into the ceiling for 10 12 mm Refer to chart 5 Locate the air conditioner firmly by wrenching the nuts after having adjusted the body s position well A Nut Body Ceiling 880mm Hook B Panel Chart 4 Note Series B 240mm Series B 310mm MCA 24CRN2 MCA 24HRN2 MCA 42 36 48 CRN2 MC...

Page 9: ...ned to the air conditioner to ensure the body is grounded well Never put the panel face down on floor or against the wall or on bulgy objects Never crash or strike it 1 Remove the inlet grid a Slide two grid switches toward the middle at the same time and then pull them up Refer to chart 8 0 b Draw the grid up to an angle of about 45 and remove it Refer to chart 9 Grid switch Chart 8 45 Chart 9 Ch...

Page 10: ...eiling well Refer to chart 12 Malfunction described in Chart13 can be caused by inappropriate tightness the screw If the gap between the panel and ceiling still exists after fastening the screws the height of the indoor unit should be modified again Refer to chart 14 left You can modify the height of the indoor unit through the openings on the panel s four corners if the lift of the indoor unit an...

Page 11: ... into the outdoor unit Refer to chart 16 Locate the outdoor unit as close to the indoor unit as possible The minimum distance between the outdoor unit and obstacles described in the installation chart does not mean that the same is applicable to the situation of an airtight Leave open two of three directions A B C X O Chart 16 Strong wind NECESSARY ROOM FOR INSTALLATION AND MAINTENANCE 30cm 60cm 3...

Page 12: ...1 Connect the indoor unit at first then the outdoor unit Bend the tubing in proper way Do not harm to them Chart 19 Chart 20 Chart 21 Use frozen oil Bend the pipe with thumb min radius 100mm Make the end straight Cut out a desired concave at the bending part of the insulating pipe Then expose the pipe cover it with tapes after bending To prevent collapsing or deforming please bend the pipe at its ...

Page 13: ...nnecting pipe to the indoor unit with the soundproof insulating sheath fittings and bind it well with the tapes to prevent leakage Use the market brass pipe Be sure to use the same insulating materials when you buy the brass pipe more than 9mm thick Flaring 90 Lean crude burr Chart 22 A 90 4 _ 4 5 2 _ Chart 23 1 Cut a pipe with a pipe cutter 2 Insert a flare nut into a pipe and flare the pipe A mm...

Page 14: ... the pump changes and the indicator of compound meter turns below zero Then fasten the nut 5 When the pumping has finished close the Lo lever of the manifold value completely and turn off the vacuum pump When you have pumped for over 15 minutes please confirm that the indicator of multi meter is on 5 1 0 10 Pa 76cmHg 6 Loosen and remove the quadrangle cover of stop values A and B to open stop valu...

Page 15: ...lues of different sizes on the side of the outdoor unit which operate as Lo stop value and Hi stop value respectively Refer to Chart 26 Chart 27 CHECK THE LEAKAGE INSULATION Check all the joints with the leak detector or soap water refer to Chart 29 13 Be sure to with insulating materials cover all the exposed parts of the flare pipe joints and refriger ant pipe on the liquid side and the gas side...

Page 16: ...e air conditioner while the air conditioner stops please lean the drainpipe down toward outdoor outlet side at a degree of over 1 50 And please avoid any bulge or water deposit Refer to Chart 28 a Do not drag the drainpipe violently when connecting to prevent the body from being pulled Mean while one support point should be set every 1 1 5m to prevent the drainpipe from yielding Refer to Chart 28 ...

Page 17: ...se of the condensate draining off the outdoor unit during the heating mode 2 Turn on the power and operate the air conditioner under the COOLING mode Listen to the sound of the drain pump Check whether the water is discharger well a lag of 1min is allowed before discharging according to the length of the drain pipe and check whether water leaks from the joints CAUTIONS If there is any malfunction ...

Page 18: ...his air conditioner is 6m long Be sure to prolong it with wiring of the same type and proper length if necessary Generally do not twist two wiring together unless the joint is soldered well and covered with insulator tape 7 Do not turn on the power until you have checked carefully after wiring 40 25 1 0 2 5 2 5 2 5 20 13 1 0 2 5 2 5 2 5 2 Remove the protection board Disassemble the bolts from the ...

Page 19: ... cooling only type without the link listed by broken line MCA 24CRN2 MCA 24HRN2 air conditioner link circuit 1 OUTDOOR UNIT INDOOR UNIT N L1 L 1 N 3 4 5 N 3 core cable 3 core cable 220 240VAC 50Hz 3 core cable 2 3x2 5mm 2 3x1mm 2 3x2 5mm N1 3 4 5 3 core AWG24 Please ground air conditioner well Otherwise an important grounding may affect anti jamming performance of whole unit ...

Page 20: ...2 1 H07RN 4X1 0mm 1 Cooling Heating type 2 2 H07RN 3X1 0mm 2 Cooling only type INDOOR UNIT 1 2 3 4 5 6 1 2 3 4 A B C N C1 C B A N Outdoor unit NOTE The cooling only type without the links listed by broken line MCA 42 36 48 CRN2 MCA 42 36 48 HRN2 3 core AWG24 air conditioner link circuit ...

Page 21: ...ing to the user s requirement install the remote controller frame where the remote controller s signal can reach the indoor unit smoothly 4 Test operation Set the air conditioner under the mode of COOLING with the remote controller and check the following points per the Owner s Manual If there is any malfunction please resolve it as per chapter Troubles And Cause in the Owner s Manual 1 The indoor...

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