Midea MEHSU-12CHD2, Installation Manual

Page 1: ...nstallation Manual Middle Static Pressure Duct Type IMPORTANT NOTE Read this manual carefully before installing or operating your new air conditioning unit Make sure to save this manual for future ref...

Page 2: ...autions 05 Outdoor Unit Installation 12 a Outdoor Unit Installation Instructions 12 b Outdoor Unit Types and Specifications 13 c Notes on Drilling Hole in Wall 14 Drainpipe Installation 15 Table of Co...

Page 3: ...h and Elevation 17 B Refrigerant Piping Connection Instructions 18 Wiring 20 a Outdoor Unit Wiring 20 b Indoor Unit Wiring 21 c Power Specifications 23 Air Evacuation 25 a Evacuation Instructions 25 b...

Page 4: ...the outdoor unit Transfer connector 9 52 12 7 Packed with the indoor unit used for multi type models only NOTE Pipe size may differ from appliance to appliance To meet different pipe size requirements...

Page 5: ...ht affect your unit and locate it accordingly Failure to do so could cause the equipment to fail After installation ensure there are no refrigerant leaks and that the unit is operating properly Refrig...

Page 6: ...2 3 4 5 MC MC 6 7 Install the indoor unit Page 7 INSTALLATION ORDER Install the outdoor unit Page 13 Install the drainpipe Page 15 Evacuate the refrigeration system Page 25 Connect the wires Page 20...

Page 7: ...d in a location that meets the following requirements Enough room for installation and maintenance Enough room for the connecting pipe and drainpipe The ceiling is horizontal and its structure can sus...

Page 8: ...er Electric control box Table 4 1 unit mm inch MODEL Btu h Outline dimension A B C 18K 210 8 3 674 26 5 880 34 6 24K 249 9 8 774 30 5 1100 43 3 30K 36K 249 9 8 774 30 5 1360 53 5 36K 60K 300 11 8 874...

Page 9: ...same size before moving on 2 Install and fit pipes and wires after you have finished installing the main body When choosing where to start determine the direction of the pipes to be drawn out Especial...

Page 10: ...of the air inlet 5 Refer to the following static pressure guidelines when installing the indoor unit Change the fan motor static pressure according to external duct static pressure 2 Install the canv...

Page 11: ...oner you have purchased may be slightly different in design though similar in shape Step 5 Fresh air duct installation Dimension Duct joint for fresh air 125mm 4 92 160mm 6 3 MODLE 18 60 Step 6 Motor...

Page 12: ...door unit may not exceed the maximum allowable pipe length If possible DO NOT install the unit where it is exposed to direct sunlight If possible make sure the unit is located far away from your neigh...

Page 13: ...to Fig 5 7 5 8 5 9 and Table 5 2 Fig 5 7 Fig 5 8 Fig 5 9 Fig 5 6 Fig 5 5 A B D W H W H Fig 5 4 Outdoor Unit Dimensions W x H x D Mounting Dimensions Distance A Distance B 760x590x285 29 9x23 2x11 2 5...

Page 14: ...mode NOTE Make sure the water drains to a safe location where it will not cause water damage or a slipping hazard Seal Drain joint A B Base pan hole of outdoor unit Seal Fig 5 12 Notes On Drilling Hol...

Page 15: ...ondensation which could lead to water damage If the drainpipe is bent or installed incorrectly water may leak and cause a water level switch malfunction In HEAT mode the outdoor unit will discharge wa...

Page 16: ...roper water drainage See Fig 6 5 Place the protective wall cuff in the hole This protects the edges of the hole and will help seal it once you finish installation Wall Indoor Outdoor 12mm 0 5 inch Fig...

Page 17: ...Notes On Pipe Length and Elevation Ensure that the length of the refrigerant pipe the number of bends and the drop height between the indoor and outdoor units meets the requirements shown in Table 7 1...

Page 18: ...connection They must be completely removed 1 Hold the pipe at a downward angle to prevent burrs from falling into the pipe 2 Using a reamer or deburring tool remove all burrs from the cut section of...

Page 19: ...ng the nut use a torque wrench to tighten the flare nut according to the torque values in table 7 5 NOTE Use both a spanner and a torque wrench when connecting or disconnecting pipes to from the unit...

Page 20: ...made through a switch that disconnects all poles with contact gap of at least 3mm 0 118 DO NOT modify the length of the power cord or use an extension cord CAUTION Connect the outdoor wires before co...

Page 21: ...repare the cable for connection a Using wire strippers strip the rubber jacket from both ends of the signal cable to reveal about 15cm 5 9 of the wire b Strip the insulation from the ends of the wires...

Page 22: ...e airflow rate from H or L 4 Set the parameters for automatic airflow adjustment When the air conditioning unit is off perform the follwoing steps Press COPY Press or to select the AF Press CONFIRM Th...

Page 23: ...1 Phase 1 Phase 1 Phase 1 Phase 1 Phase FREQUENCY AND VOLT 208 240V 208 240V 208 240V 208 240V 208 240V CIRCUIT BREAKER FUSE A 25 20 32 25 50 40 70 55 70 60 MODEL Btu h 36K 37K 60K 36K 37K 60K POWER P...

Page 24: ...1 Phase 1 Phase 1 Phase 1 Phase FREQUENCY AND VOLT 208 240V 208 240V 208 240V 208 240V CIRCUIT BREAKER FUSE A 15 10 15 10 15 10 15 10 POWER outdoor PHASE 3 Phase 3 Phase 3 Phase 3 Phase FREQUENCY AND...

Page 25: ...the manifold gauge Keep the High Pressure side closed 4 Turn on the vacuum pump to evacuate the system 5 Run the vacuum for at least 15 minutes or until the Compound Meter reads 76cmHG 1x105Pa 6 Close...

Page 26: ...5m 16 The additional refrigerant to be charged can be calculated using the following formula Liquid Side Diameter 6 35 1 4 9 52 3 8 12 7 1 2 R22 orifice tube in the indoor unit Total pipe length stand...

Page 27: ...correctly d Ensure the indicators on the remote control and the display panel on the indoor unit work properly e Ensure the manual buttons on the indoor unit works properly f Check to see that the dra...

Page 28: ...Page 28 The design and specifications are subject to change without prior notice for product improvement Consult with the sales agency or manufacturer for details QST2I 045AEN I 16123000000713 2016060...

Page 29: ...AULT FACTORY SETTING FOR TEMP COMPENSATION HEATING SW6 CODE 6 2 4 T2 T1 CN6 4 BLACK WHITE INDOOR COIL TEMP SENSOR ROOM TEMP SENSOR CN40 WIRE CONTROLLER 4 CN5 WATER LEVEL SWITCH CN9 X Y E To CCM Comm B...

Page 30: ...Test Run Page 30...