Trane MW(C)W509 User manual

Indoor Unit
Installation & Operation Manual
Advanced Multi-split System
Wall-mounted Indoor Unit
MW(C)W509/512/518
R410A
200061350200
April 2012 AMS-SVX03A-EN

2 AMS-SVX03A-EN
Table of contents
User notice čččččččččččččččččččččččččččččč 3
Attentions čččččččččččččččččččččččččččččč 4
Unit model čččččččččččččččččččččččččččččč 6
Unit outline dimensionččččččččččččččččččččččččč 7
Unit components and names čččččččččččččččččččččč 8
Installation čččččččččččččččččččččččččččččč 9
Electrical control wiring čččččččččččččččččččččččč 12
Indoor and outdoor unit communication wires specification and attention čč12
Electrical parameters ččččččččččččččččččččččččččč13
Electrical wiring diagram čččččččččččččččččččččččč 14
DIP setting čččččččččččččččččččččččččččččč 15
Controller instruction ččččččččččččččččččččččččč 17
LED light settingčččččččččččččččččččččččččččč 18
LED light setting instructiončččččččččččččččččččččččč18
Definitions of LED Panel ččččččččččččččččččččččččč18
Proper use method čččččččččččččččččččččččččč 19
Maintenance ččččččččččččččččččččččččččččč 20
Fault analysis ččččččččččččččččččččččččččččč 22

AMS-SVX03A-EN 3
User notice
During operation, the total capacity of the indoor units operating at the same time shall not
•
exceed the outdoor unit capacity. Otherwise, it will lead to inadequate indoor unit cooling
(heating) capacity.
According to the capacity, install an air switch or fuse at each indoor unit and a main air
•
switch for all indoor and outdoor units. The air switch of each indoor unit is used for short
circuit protection and abnormal overloading of the indoor unit, which is normally closed.
The main switch controls the power supply for all indoor and outdoor units. User must cut
off the main power supply for all units before cleaning.
User should keep the unit powered 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 would keep running for 20-70s to
•
use residual cool or heat from the heat exchanger and ready for the next operation.
If operating modes of the indoor unit and outdoor unit are not in accordance, the indoor
•
unit fault indicator flashes after 5s and the indoor unit stops. In that case, just mode
conversion can eliminate the conflict. Cooling mode is in accordance with dry or fan mode,
while non modes are in accordance with heating mode.

4 AMS-SVX03A-EN
Attentions
Please read the information within this manual and carry out the operation in accordance1.
with instructions.
Please pay close attention to the following symbols:2.
Warning
A symbol indicating improper operation may cause personnel death or severe injury.
Attention
A symbol indicating improper operation may cause personnel injury or property
damage.
Warning
Air conditioning unit must be earthed reliably for safe. The earth wire should connect with•
specified building earthing device. Please invite professionals to install in case of non-
specified building earthing device.The earth wire can not connect with gas pipe, water pipe,
drainage pipe and others that professionals think unreliable.
Air conditioning unit must use specified power supply wires with adequate leakage•
protection switches and air switches
Ensure power supply connection in good condition, otherwise it may cause electric shock•
or fire.
Don not stop the running unit by cutting off main power supply, otherwise it may reduce•
the unit service life.
Do not damage the wires or use non-specified wires, otherwise it may cause electric shock•
or fire.
Do not touch air conditioning unit with wet hands, which is danger of electric shock.•
Don not insert your fingers or sticks into the air outlet of the air conditioning, otherwise it•
may cause injury.
If you find abnormal phenomenon (such as smell of scorching), please cut off main power•
supply instantly and contact Trane customer service center. Continuous abnormal status
will damage air conditioning unit and cause electric shock or fire.
Do not repair the air conditioning unit by yourself. Improper repair may cause electric•
shock or fire. If you need help, please contactTrane customer service center for repair.
Do not use fuse with improper capacity. Use iron wire replacing fuse may cause fault or•
fire.
Always cut off main power supply of the air conditioning unit, which is unused for a long•
term.
When you clean the air conditioning, switch off main power supply avoiding electric shock•
or injury.
Heaters should not face the air outlet directly since incomplete combustion may lead to CO•
poison.
Place dangerous articles such as chemical sprayer outside the unit 1m, otherwise it may•

AMS-SVX03A-EN 5
Attentions
cause fire or explosion.
Do not block the air outlet, otherwise it will reduce the unit efficiency or lead to outage.•
Attention
Please verify the power supply meets requirements in the nameplate and check safety•
before installation.
Before operation, please check wires, drainage pipes and pipes connection avoiding•
accidents, such as water and refrigerant leakage, electric shock and fire etc.
Main power supply must be earthed reliably for effective air conditioning unit earth,•
avoiding electric shock. The earth wire should not connect 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 is prohibited.•
Do not touch air conditioning unit with wet hands.•
When clean the air conditioning or replace the air strainer, switch off main power supply•
first.
Cut off main power supply of the air conditioning unit, which is unused for a long term.•
Air conditioning unit can not be exposed to water or moist environment directly, which can•
cause corrosion.
Connect the power supply for leakage test after installation.•

Model M W W 5 1 8 M M N C A
1234567891011
Additional option N A A
12 13 14
Service code M W W 5 1 8 M M N C A N A A
1234567891011121314
Digit 1 M =Trane mini split unit
Digit 2 W = Heat pump
C = Cooling only
Digit 3 W = Wall-mounted unit
Digit 4 5 =Threaded connection
Digit 5, 6 Nominal cooling capacity
09
12
18
Digit 7 Design serial no.
M = Free split inverter indoor unit system (with electronic expansion valve)
Digit 8 Power supply type
M = 220~240V/50Hz/1PH
Digit 9 Electric heater
N = None
Digit 10 Controller
C = LCD remote controller
Digit 11 Design change
A = Change of initial design
Digit 12 Optional accessories
N = None
Digit 13 Configuration change
A = First
Digit 14 Other options
A = Sales in domestic market
B = Export
6 AMS-SVX03A-EN
Unit model
Model (Wall-mounted indoor unit)

Unit outline dimension
Model MW(C)W509 MW(C)W512 MW(C)W518
A 843 940 940
B 275 298 298
C 180 200 200
AMS-SVX03A-EN 7

Unit components and names
Note: Appearances of air conditionings may differ by models.
Air inlet
Strainer
Panel
Air guide slide
Air outlet Connecting pipe
Wiring cover plate
8 AMS-SVX03A-EN

AMS-SVX03A-EN 9
Installation
Installation diagram
Unit: ǖmm
Ground
Ceiling
Ground
Ceiling
Wall
>150
>150
>150
>2000
>3000
Only air conditioning unit installed by professionals in accordance with this manual can•
ensure good status.
Hanging plate installation
Find the level position with hanging line. When adjust the board, the left side should be•
lower since the drainage pipe is at the same side.
Fix the hanging plate on the wall with screws.•
Pull the hanging plate to make sure it is fixed after installation completed. Properly installed•
hanging plate can withstand 60kg and all fixed screws are stressed uniformly.
Outlet pipe wall hole diameter: 50mm for MW(C)W509/512, and 65mm. for MW(C)W518.•
Outlet pipe wall hole Ø
Drill piping hole
Drill a outward-dipping hole (˫50 or ˫65) after determining the piping hole position.•
Install wall pipe to prevent piping and cable through the wall from damaging.•

10 AMS-SVX03A-EN
Drainage pipe installation
The drainage pipe should be inclined downward for water flow smoothly. Wrap the indoor•
drainage pipe with thermal insulation material.
The drainage pipe can not be twisted, bulged or waved etc. Do not insert the outlet port•
into water.
Bulged
DO not insert it into water.
Twisted
Connecting pipe installation
Connect the connecting pipe and two indoor unit extraction pipes correspondingly and•
fasten the connecting pipe joint nut.
Arrange and bend the piping carefully. Do not damage the connecting pipe.•
Do not overtighten the joint nut, otherwise it may cause leakage.•
Installation

AMS-SVX03A-EN 11
Installation
Indoor unit installation
Wall-mounted unit pipe arrangement sees fig. (a) and (b) below. Cut off piping blanking at•
the main unit base as needed (as shown in fig. (c)) when arrange left or right pipe (wire).
- Cut off blanking 1 for leading power wires only.
- Cut off blanking 1 and 2 (or 1, 2 and 3) for leading connecting pipes and wires
- Ɨ, Ƙand ƙare recommended pipe arrangement.
Packed piping and wire are through the piping hole (as shown in fig. (d))•
Connect the claw at the indoor unit backside with the hanging plate hook. Move the unit to•
check stability after installation.
Installation height should not be less than 2.0m.•
(a)
ķRight piping
(c)
ĸRight rear piping ĹLeft rear piping
Blanking 1
Blanking 2
Blanking 3
(b)
ĺLeft pipi
Binding ba
Signal con
Drainage
p
Power supply
wire
Connecting pipe
(d)

12 AMS-SVX03A-EN
Electrical control wiring
Indoor and outdoor unit communication wires specification and
attention
Indoor and outdoor unit communication wires are provided byTrane.•
STP specification is 0.5 ċ1.25mm2and the lay is less than 10cm.
LLay ǘ10cm
STP legend
ABC
D
A: Outer sheath B: Shield layer C: Insulator D: Conductor
Do not connect the power supply wire with the communication wire terminal.•
You have to connect control (communication) wire and the total length should be less than•
1,000m.
Shield layer of the communication wire and the main unit must be grounded.•
Install the communication wire before power on. Do not plug in and out with electricity,•
avoiding communication chip damage.
Control signal circuit must use STP, avoiding strong electric signal interference. (Choose•
network wire with tight shield layer and small lay.)
Control signal is divided into A and B, two polarities. Different polarities can•
not be connected as followings (A can not connect with B):
A1 B1
Communication port
Control main board
Communication port
Control main board
A1 B1
It is wrong to connect A with B.
When power supply wire and communication wire are parallel wiring, please cover•
conduits and keep a certain distance between them.
The communication wire passes through the side incoming hole and connects controller•
CN2 terminals as followings:
RS485 wire sequence A B Shield layer
CN2 terminal A B G

AMS-SVX03A-EN 13
Electrical control wiring
Attention
All indoor unit power supplies are uniform. Improper wiring may cause some electrical parts
fault. Wire from connecting point to fixed point should be flexible after cable fixed.
Open upper panel and turn the fixed screw of the wiring cover plate as followings.•
DIP SW2
Communication
wire slot
DIP SW1
Wiring cover plate
Wiring (communication) is through the hole of bottom shell and electrical box from down•
to top, connects CN2 of adapter board and fixed with clamp finally.
Install the wiring cover plate to original position, tighten screws and cover the panel.•
Electrical parameters
Model Frequency
DŽHzDž
Rated
voltage
DŽVDž
Voltage
range
(V)
Fan motor
rated current
FLA
(A)
Without electric heater
Min. line
current
(A)
Copper
core min.
diameter
DŽmm2Dž
MW(C)W509
50 220~240 198~264
0.23 0.30 1.0
MW(C)W512 0.27 0.35 1.0
MW(C)W518 0.27 0.35 1.0
Note:
Choose power supply cable and wire in accordance with related local and national laws•
and regulations and specifications respectively.
All wires are protected with conduit.•
If a breaker is connecting with several indoor units, you should choose one with larger•
capacity.
You must use specified wire and secure it firmly, avoiding terminal block applied external•
force.

14 AMS-SVX03A-EN
Electrical wiring diagram
63624329
M1
CN5
CN6
CN4
TC
III
II I
AP1 PCB
CN8
CN3
M2
X2
PE
L
N
X1
CN18CN19CN20 CN17
RT3
RT2 RT4
23
RT1
41
EXV
CN12
0
0
0
0
CN2
CN9
PE
15k20k20k20k
CN1
AP4
CN2 AC-L N
ABG
CN15
AP3
CN1
8
ABG
Note: Communication wires
are assigned by users. It is
recommended to use shield
twisted pair and pay attention
to the polarity. Port A and B
of two indoor units or indoor
unit and outdoor unit can not
be reversed. Connect shield
ground wire to port G of DIP
board.
The DIP board can connect
multiple communication
wires of indoor units.
Connect to other indoor
or outdoor units
DIP board
Display board
Power supply
Evaporator
Fan motor
Step motor Power transformer
Outlet pipe
temperature
sensing bulb
Middle pipe
temperature
sensing bulb
Inlet pipe
temperature
sensing bulb
Ambient
temperature
sensing bulb
Electronic
expansion
valve
Brown
Blue
Yellow/green
Communication
wires

AMS-SVX03A-EN 15
DIP setting
Wall-mounted indoor unit PCB board DIP setting
SW2
Indoor unit capacity DIP Reserved Indoor fan gear
selection Reserved
S1 S2 S3 S4 S5 S6 S7 S8
SW1
Indoor unit address DIP Reserved Reserved Test program
S1 S2 S3 S4 S5 S6 S7 S8
Indoor unit capacity DIP
According to the capacity, the indoor unit is divided into various models, such as 2.8kW, 3.6kW
and 5.0kW etc. Capacity DIP at the control board decides the capacity.
There are total 8 DIP switches for SW2 at the control board, S1, S2, S3 and S4 are capacity DIP
switches as followings:
S1 S2 S3 S4 Indoor unit capacity
DŽkWDž
0000 2.8
0001 3.6
0010 5.0
Indoor unit fan speed gear selection
Correct indoor unit connecting pipe length through the unit DIP switches. There are 8 DIP
switches for SW2 at indoor unit control board and S7 decides indoor unit fan speed gear. When
the DIP isĐ0đ, itďs high three gears for high, medium and low, when the DIP isĐ1đ, itďs low
three gears for medium, low and extra-low.
Indoor unit fan speed gear High three gears Low three gears
Indoor unit fan speed gear S7 0 1
Indoor unit fan speed High, medium and low Medium, low and extra-low

16 AMS-SVX03A-EN
DIP setting
Indoor unit address DIP
Different indoor units must have different address DIP (Same indoor unit address DIP may
cause conflicts).
There are total 8 DIP switches for SW1 at the control board, S1, S2, S3 and S4 are address DIP
switches as followings:
S1 S2 S3 S4 Indoor unit address
0000 1
0001 2
0010 3
0011 4
0100 5
0101 6
0110 7
0111 8
Note:
1. Indoor unit address setting can be divided into automatic and manual setting, two
kinds.
2. Manual setting sees the table above, automatic addressing take automatic addressing
process in the outdoor unit instruction manual for reference.

AMS-SVX03A-EN 17
Controller instruction
Remote controller front appearance and function buttons are as followings:
On/Off Press this key to control On or Off of air conditioner (only the clock
is displayed in Off state)
Temperature
setting
Press the key ▲or ▼to increase or decrease current set
temperature. Range of settings: 16ņ-30ņ, setting a temperature
in the Fan mode is invalid!
Mode (for
cooling only)
Press this key to switch among modes in the following order:
Cooling ŚĘDryęŚ Fan ŚĘHeatingęŚĘAuto Cooling/Heatingę.
Fan Press this key to switch among speeds in the following order:
ĘAutoęŚ Low ŚMedium ŚHigh, there is no Auto mode in the
Fan mode and no Low mode in the Dry mode.
Swing Press this key once to enable the Swing function, press it again to
disable this function.
Light Only valid in ON state. Invalid in OFF state: when the unit is turned
off, the light is off.
When the unit is turned on, the light is on by default. Press this
button again the light is off, making a cycle.
Sleep Press this key once to enable the Sleep function, press it again to
disable this function.
Electric heating Press this key once to enable the electric heating, press it again
to disable this function; the Auto Auxiliary Heating is enabled by
default.This wall-mounted unit is without electric heating.
Priority Press this key once to enable the Priority and press it again to
disable this function.
Quick Cooling/
Heating
If current mode is Cooling, press this key to enter the Quick Cooling
mode; if current mode is Heating, press the key to enter the Quick
Heating mode.
Auto On/
Off time and
system time
setting
Auto On/Off time and system time setting:
Press the key "Timer" to enter the Auto On time setting. Here,ĐNOđ
is illuminated and flashes, press ▼or Řto set Auto On time and
the time will increase or decrease by 10min; if there is no action
within 3sec, "NO" will stop flashing and the system enters Auto
On automatically. Press "Timer" key again to enter Auto Off time
setting, here "OFF" is illuminated and flashes, press ▼or Řto set
Auto Off time and the time will increase or decrease by 10min; if
there is no action within 3sec, "OFF" stops flashing and the system
enters Auto Off automatically. Press "Timer" key once again to
enter the SystemTime setting, here the system time flashes, press
▼or Řto set the time and the time will increase or decrease by
1min; if there is no action within 3s, the system will go to the time
screen automatically.The fourth pressing of "Timer" key will exit
from all the time settings.
Note: If in the time setting, the time set by pressing ▼or Řis
beyond 12:00, then "AM" and "PM" will alternate.
Enable auto ON/OFF
PressĐTIMERđandĐQuick cooling/heatingđ
button simultaneously to enter auto ON.
PressĐTIMERđandĐQuick cooling/heatingđ
button again to enter auto OFF.
PressĐTIMERđandĐQuick cooling/heatingđ
button once again to enter auto ON/OFF.
The fourth pressing ofĐTIMERđandĐQuick
cooling/heatingđbutton will clear all.
7,0(5

18 AMS-SVX03A-EN
LED light setting
LED light setting instruction
There are 4 LED lights for the wall-mounted unit as shown below. They are heating , dry
, cooling and run (power supply) . Numerical value displays in middle (display
temperature and fault no. etc.)
Definitions of LED Panel
Cooling LED Ljit is on when the unit is operating in Cooling mode;
Heating LED Ljit is on when the unit is operating in Heating mode;
Dry LED Ljit is on when the unit is operating in Dry mode;
Run LED Ljit is on when the unit is running;
In initial power on or reset, Power LED1. is on after one-second flashing of all LEDs;
In normal manual or automatic start, Run LED is on;2.
In normal shutdown, Run LED is off;3.
If the system fails, all LEDs (Mode and Run in current mode) will flash at 1Hz (ON for 0.5sec4.
and OFF for 0.5sec) and at the same time corresponding fault code will be shown in the
digital temperature display field.
For example: if cooling fault E02 occurs, and will flash, in the above figure will
display 02.

AMS-SVX03A-EN 19
Proper use method
Adjust the setting temperature properly to save energy. Generally, indoor and outdoor•
temperature difference is 50C.
Air deflector is downward for heating mode and horizontal for cooling mode to make•
perfect performance.
Do not open the door and windows for a long time when the air conditioning is running,•
otherwise it may reduce the unit efficiency.
Do not blowing the cold air directly for a long time and set too-low room temperature,•
which is unhealthful.
Do not spray water or clean the unit with water, which may cause fault or electric shock.•
Do not damage power cords and signal control wires. Only specified flexible cord can•
replace the damaged one.
This air conditioning allowable voltage fluctuation is 220~240Ġ10%V.•
This air conditioning can not be used for drying clothes or foods cold-preserved.•
Set proper room
temperature.Too low
temperature is unhealthy.
Clean the air
strainer carefully.
Please pull out the
battery if the unit is
unused for a long term.
Avoid sunlight
to lose cold air.

Maintenance
20 AMS-SVX03A-EN
Attention
Cleaning of air conditioning must be done with the unit stopped and its main power off,•
otherwise the risk of electric shock may be resulted in.
Never wet the air conditioning, otherwise the risk of electric shock may be resulted in. Make•
sure not flush the conditioner with water in any case.
Volatile liquids like thinner and gasoline may damage the appearance of air conditioning. (Its•
enclosure could only be cleaned with soft dry cloth and wet cloth dipped with neutral wash
solution).
Cleaning of panel
Attention
Remove it before cleaning: Do not do cleaning with water hotter than 45 ņ,
otherwise it may be discolored or distorted.
As shown in the figure below, apply force to slots at both panel sides in arrow direction to1.
remove the panel.
Clean the panel with soft brush, water and neutral cleanser, followed the drying with water2.
throw-off or in a cool place.
Reinstall the panel.3.
As shown in the figure below, put the panel pillars at both sides into channels and middle rotor
shaft into the slots. Finally cover the panel according to the arrow direction and fix it.
Cleaning of air strainer
Generally, the air strainer is expected to be cleaned every three months. In case of operation in
a dusty environment, its cleaning frequency shall be increased.
Remove the air strainer1.
As shown in the figure, apply force to slots at both panel sides in arrow direction to open
the panel and pull the air strainer downwards to remove it.
Cleaning of the air strainer2.
Generally, the strainer may be cleaned with dust remover or through water washing, and
may be washed in the warm water (below 45 ņ) containing neutral cleanser if it is very
dirty (e.g. oil dirt), followed the drying in a cool place;