Trane MWC518 Installation & Operation Manual Download Page 22

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AMS-SVX02A-EN

Electrical Wiring Diagram

CN11

CN10

Yellow/green

AP2

CN3

FUSE:50T 3.15A 250V~

PCB

AP2

Wired controller

Cassette indoor unit

ellow

Blac

Blue

White

Fan

Water pump

Power transformer

Evaporator

White

CN17

CN5

7 5 1

CN4

AP1

CN16

CN15

Communication wire

RT3

X20

17 Yellow/green

Ambient

temperature

sensing bulb

Outlet

temperature

sensing bulb

Inlet

temperature

sensing bulb

Midpoint

temperature

sensing bulb

CN18

CN8

CN9

RT4

CN12

CN13

RT2

CN19

RT1

Power supply

CN2

3 Yellow/green

SA2

XT1

22Black 21Black

CN20

CN21

20Red

19White

Limit switch

Black

SA1

Swing motor

Limit switch

CN1

61414396

Orange

2 Blue

1 Brown

CN7

EXV

Note: CN7 is screen printing of
main board electronic expansion
valve. Tie and ﬁx external wire
of expansion valve. Do not touch
high temperature or wet objects.

Summary of Contents for MWC518

Page 1: ...Indoor Unit Installation Operation Manual Advanced Multi split System Cassette Indoor Unit MWC518 524 R410A 200061360200 April 2012 AMS SVX02A EN...

Page 2: ...Unit Installation Site Selection and Attentions 8 Unit Installation 10 Installation Diagram 10 Panel Installation 14 Electrical Control Wiring 19 Electrical Wiring 19 Electrical Parameters 21 Electric...

Page 3: ...ed on If user do not use the unit for a long term please cut off power supply and switch on the main power switch for 24 hours before operation When the indoor unit receives shutdown signal the fan wo...

Page 4: ...f machine Otherwise the machine may fall and cause personnel injury or death Install the drainage pipe in accordance with this manual to ensure smooth water flow Besides you should also take measures...

Page 5: ...onnect with gas pipe water pipe lightning rod or phone line Switch off the unit after 5 minutes running at least otherwise it may reduce the unit service life Children operating air conditioning unit...

Page 6: ...acity 18 24 Digit 7 Design serial no M Free split indoor unit inverter system with electronic expansion valve Digit 8 Power supply type M 220 240V 50Hz 1PH Digit 9 Electric heater N Non electric heate...

Page 7: ...ge device built in type Discharge condensate water from the indoor unit in cooling mode Drainage pipe Air de ector In the air outlet Connecting pipe Air outlet Air strainer and puri er In the air inle...

Page 8: ...onment with corrosive gas heavy dust salt mist and oil smoke can not be the installation site Attention Following locations may cause the air conditioning unit fault If you have to select this kind of...

Page 9: ...s not used for x or it may cause electric shock Earth resistance complies with national standards GB17790 User is responsible for providing reliable earthing terminal Pease do not connect earth wire t...

Page 10: ...t to outdoor unit 5 Ensure enough space for repair and maintenance 6 The distance between indoor unit and ground is 1 800mm at least Check hoist screw installation site if support 4 times of the unit...

Page 11: ...tact local Trane authorized service center before installation When the unit installed by non authorized service center is failure we can not resolve it in time for business relations Ceiling hatch di...

Page 12: ...ing Installation paperboard 2 Review installation paperboard for ceiling hatch dimension There is a mark in the installation paperboard indicating ceiling hatch centre Fix the installation paperboard...

Page 13: ...sory Nut provided on site Hanger bracket Tighten double nut Washer accessory Fix the screw at the corner of outlet pipe at the drainage tank corner Center of the ceiling hatch Installation paperboard...

Page 14: ...at the main hook temporarily air de ector motor wires can not be involved in sealing materials Torque the 4 hexagonal screws below the hook to 15mm the panel will be lifted later As shown in fig adjus...

Page 15: ...panel after tightening screws please 2 adjust the indoor unit height again as shown in g 8 No seams Without affecting the indoor unit lifting and drainage pipe are prerequisites for adjusting the heig...

Page 16: ...leakage and take heat insulation measures Wrap joints of air pipe and air collector pipe insulating sleeve with the sponge Apply refrigerating engine oil Torque wrench Wrench Pipe joint Liquid inlet...

Page 17: ...To allow the drainage hose not to bend a distance of 1 1 5m at least shall be maintained between hangers Wrong 1 1 5m Correct gradient above 1 100 Figure 11 Use the supplied drainage hose and clamp In...

Page 18: ...uent drainage pipe Less than 75mm Less than 500mm Selected confluent drainage pipe to be sized to operating capacity to the Figure 14 unit Check if the water drains smoothly at the end of installation...

Page 19: ...them with a cable clip respectively Wiring according to indoor circuit diagram Fix the cable clip after completed Wrap the wire with small sponge it is necessary for prevent condensation formation Pre...

Page 20: ...use special power wires with leakage and air switches for 3 overloading Air conditioning unit must be earthed to prevent damage caused by failure of insulation 4 All wirings must use crimp terminal o...

Page 21: ...he rubber ring 2 Insert the wired controller signal wire into 4 pin socket of indoor unit circuit board 3 Tie and x the wired controller signal wire with cable tie 4 Attention Please pay close attenti...

Page 22: ...ent temperature sensing bulb Outlet temperature sensing bulb Inlet temperature sensing bulb Midpoint temperature sensing bulb CN18 CN8 CN9 0 4 RT4 CN12 CN13 3 RT2 2 CN19 1 RT1 Power supply CN2 3Yellow...

Page 23: ...ed gear selection According to indoor unit connecting pipe length correct fan speed through DIP There are 8 DIP switches for SW2 at indoor unit control board and S7 decides indoor unit fan speed gear...

Page 24: ...he diagram is just for reference the actual display may be different 1 When you press a button there may be no action since non corresponding function 2 Please clean the air strainer in accordance wit...

Page 25: ...is valid after being canceled reset the temperature and fan speed in sleep state 9 Reset hole Press the Reset hole zero the timing of dust ltration screen cleaning do not display symbol of the screen...

Page 26: ...indoor unit Poor cooling performance 1 Air strainer is dirty or blocked 2 Heat source or too much people in the room 3 The door or window is open 4 Barriers in air outlet inlet 5 High setting tempera...

Page 27: ...dusty environment air strainer s cleaning frequency shall be increased generally clean it every two weeks Check before the beginning of service season Check that both inlet and outlet of the unit are...

Page 28: ...2012 New Trane www trane com For more information contact your localTrane office or e mail us at comfort trane com Trane has a policy of continuous product and product data improvement and reserves t...

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