Trane MWC524 Installation & Operation Manual

Brand: Trane

Model: MWC524

Category: Split-system air conditioners

Type: Installation & Operation Manual

Indoor Unit

Installation & Operation Manual

Advanced Multi-split System

Concealed Indoor Unit

MW(C)D507-524

R410A

200061230200

April. 2012

AMS-SVX04A-EN

Overview

All installation process of this air conditioner must comply with the national, provincial and local

regulations.

Before installing this air conditioner, please be careful to review the information within this manual.

This unit must be installed and serviced in the light of this manual so as to ensure the normal

and reliable operation of the air conditioner. The installation of this unit must be executed by the

specialized staff designated by our company.

This manual may not cover any circumstance encountered during the installation of this air

conditioning unit, so it is impossible that this manual gives directions for all possibilities occurred in

the course of installation. For more detailed information or special problem proposed by customers

but not detailed in this manual, please contact TRANE.

2 AMS-SVX04A-EN

Table of contents

Overview ččččččččččččččččččččččččččččččč2

Safety instruction ččččččččččččččččččččččččččč 4

Model descriptions ččččččččččččččččččččččččččč 6

Unit dimension čččččččččččččččččččččččččččč 7

Standard model čččččččččččččččččččččččččččč7

Slim model čččččččččččččččččččččččččččččč8

Unit installation čččččččččččččččččččččččččččč 9

Precautions čččččččččččččččččččččččččččččč9

Installation of the concealed indoor unit ččččččččččččččččč9

Installation of refrigerant pipe čččččččččččččččččččččč 14

Three principles of installing the refrigerant pipe ččččččččččččč 14

Flared coupling of the refrigerant pipe ččččččččččččččččč 14

Welding of refrigerant pipe čččččččččččččččččččččč 15

Purging of refrigerant pipe čččččččččččččččččččččč 15

Leakage detection and heat insulation of refrigerant pipe ččččččččč 16

Precautions ččččččččččččččččččččččččččččč 17

Connection of drainage pipe ččččččččččččččččččččč 17

Concentrated drainage čččččččččččččččččččččččč 18

Drainage testing ččččččččččččččččččččččččččč 18

Electrical control wiring ččččččččččččččččččččččččč 19

Concealed type indoor unit čččččččččččččččččččččč 19

Precautions: čččččččččččččččččččččččččččč 19

Wired controller ččččččččččččččččččččččččččč 19

DIP setting of the controller čččččččččččččččččččččč 20

DIP for model of the indoor unit čččččččččččččččččččč 20

DIP for address of the indoor unit ččččččččččččččččččč 21

Shift selection for fan speed of the indoor unit čččččččččččččč 21

Electrical parameters ččččččččččččččččččččččččč 22

Description of controllerččččččččččččččččččččččččč 23

Operating panel of wired controller čččččččččččččččččč 23

System parameter query list ččččččččččččččččččččč 25

Attached list: parameter query ččččččččččččččččččččč 25

Electrical wiring diagram čččččččččččččččččččččččč 26

AMS-SVX04A-EN 3

Safety instruction

Caution

Please read this installation manual carefully and be sure to comply with the instructions in

this manual before installing and using this unit!

For this product, the following standards apply:

GB/T 18837-2002 JB 8655-1997 GB 4706.1-2005

Preparation before installation

Please have a qualiﬁ ed licensed professional technician handle the installation of this unit. Users •

may not install, repair or displace the air conditioner by themselves;

Please have a licensed professional electrician handle the power wiring, and inspect safety in •

utilizing electricity, such as sufﬁ ciency of line capacity, damage of power line, etc.;

Please be sure to install the air conditioning unit according to this manual. In the case of any •

improper installation, water leakage, electric shock or ﬁ re may be caused.

Precautions during installation

Location where the air conditioner should not be installed:•

Avoid where inﬂ ammable gas or volatile combustible matter is likely to leak (e.g., gasoline,

combustible dust, etc.), or ﬁ re may be caused.

Avoid where acid, alkaline matter or corrosive gas might be generated, or susceptibility to

corrosion of the unit may be caused, and lead to leakage of refrigerants;

Avoid where dust, steam, oil fume or special spraying agent diffuses, e.g. kitchen, etc.

A special circuit should be provided, and it must accord with ĐEngineering speciﬁ cation for •

electrical equipmentsđ and ĐSpeciﬁ cation for indoor electrical wiringđ.

The unit must be earthed properly. Be sure to connect the earth wire to the ground reliably. Do •

not connect the earth wire to water or gas pipes, or telephone wire.

Please use the power line having sufﬁ cient current capacity and rated power, and the line may •

not be tightened excessively.

Fix the power line ﬁ rmly so that external force may not be applied to the terminal block.•

If connection or ﬁ xing is unsecured, the generated heat will lead to electric shock or ﬁ re.•

The electrical parts of the unit shall be damp-proofed, apart from water source. Do not install the •

wired controller where easy to contact the inﬂ ammable gas, sulphurous gas, machine oil, etc.

The drainage pipe must be installed according to those speciﬁ ed in this manual to ensure smooth •

draining. Heat insulation should be done to prevent generating condensate water.

If being installed in a relatively small room, relevant measures must be taken to prevent •

concentration of refrigerants in the room exceeding limit value in case of leakage.

During installation, if secondary refrigerants leak, ventilation is required. The leaked refrigerants •

will generate poisonous gas in case of being ﬁ red.

After completion of installation, tightness test shall be performed for the pipes. Inspect where air •

leakage exists.

Be sure to use the R410A specialized tools and accessories for the air conditioning unit that •

R410A refrigerants are used.

4 AMS-SVX04A-EN

Safety instruction

Precautions during trial operation

Do not operate the wired controller or remote controller with wet hands. Do not splash water •

into the wired controller or remote controller.

Do not pull or bend the cable of the wired controller. Never use sharp object press the button, •

and avoid improper connection.

During operation of the unit, never extend the ﬁ nger, stick or rod into the air inlet or outlet.•

In the process of operation or at the just end of operation, never touch the refrigerant piping •

with hands because the terribly hot or cold piping may easily lead to scalding or freezing injury of

hands.

After stopping operation, do not switch off the power immediately, but wait for 5 min at least and •

then turn it off; or else, water leakage might be caused.

AMS-SVX04A-EN 5

Model descriptions

Model

M C D 5 1 8 M M N B A

1234567891011

Service code

M C D 5 1 8 M M N B A N L A B

123456789101112131415

Digit 1 M = Mini split unit

Digit 2 C = Cooling only

W = Heat pump

Digit 3 D = Concealed unit

Digit 4 5 = Threaded connection

Digits 5, 6 Nominal cooling capacity

07 09 10 11 12 16 18 24

Digit 7 Design Sequence

M = Standard ducted type (only model 09, 12, 18, 24)

N = Slim ducted type (except model 24)

Digit 8 Power supply type

M = 220~240V/50Hz/1PH

Digit 9 Electric heater

N = Without electric heater(cooling only model can only choose this option)

C = With 1.0 kW electric heater (only for MWD507, 509, 510)

D = With 1.4 kW electric heater (only for MWD511, 512)

F = With 1.8 kW electric heater (only for MWD516, 518)

H = With 2.8 kW electric heater (only for MWD524)

Digit 10 Controller

A = Wired controller

B = Wired + card remote controller (standard)

Digit 11 Design change

A = standard

B = Option With drainage pump

Digit 12 Optional accessories

N = Without air return plenum, without strainer, without hot water coil

M = With rear air return plenum, without strainer, without hot water coil

A = With rear air return plenum, with strainer, without hot water coil

B = With rear air return plenum, with strainer, with single-row hot water coil

D = Without rear air return plenum, without strainer, with single-row hot water coil

F = With rear air return plenum, without strainer, with single-row hot water coil

G = With rear air return plenum, with strainer, with double-row hot water coil

J = Without air return plenum, without strainer, with double-row hot water coil

S = With rear air return plenum, without strainer, with double-row hot water coil

K = With bottom air return plenum, without strainer, without hot water coil

L = With bottom air return plenum, with strainer, without hot water coil

P = With bottom air return plenum, with strainer, with single-row hot water coil

T = With bottom air return plenum, with strainer, with double-row hot water coil

Q = With bottom air return plenum, without strainer, with single-row hot water coil

Y = With bottom air return plenum, without strainer, with double-row hot water coil

(Standard strainer is made of nylon)

Digit 13 Coil connection (to air outlet)

L = Left (standard)

R = Right

Digit 14 For future

Digit 15 Language option

A = Chinese

B = English

6 AMS-SVX04A-EN

Unit dimension

Standard model

Motor

883

1153

983

1. Only main unit, no accessories selected by the customer: MW(C)D509~524MM***

1433

518

270

487

192

226

237

MW(C)D524MM

Detail A

1243 1270

MW(C)D509MM

MW(C)D512MM

MW(C)D518MM

Dimensions

(unit: mm)

Model

963

793

693

720

820

990

152

223

Air outlet

Electrical control box

Drain pipe

outlet joint

(3/4" external thread)

3/8" 5/8"

Draian pan

Unit weight

18.5

(Kg)

3/8"

Inlet

pipe Ø

Outlet

pipe Ø

Dimensions

(unit: mm)

Model

Inlet

pipe Ø

Outlet

pipe Ø

1/4"

3/8"

1/2"

5/8"

Hoisting hole (4), see detail A

Heat exchanger

Drain pan

Heat exchanger

Electric heater

(optional)

211

Centrifugal fan

121

Remove hot water coil

2. Main unit + rear air return plenum + bottom air return plenum + hot water coil + electric heater: MW(C)D509~524MM***

Water outlet pipe joint:

ZG1/2" for single-row, ZG3/4" for double-row

Bottom return air = 543

Rear return air = 522

270

198

Bottom return air

(optional)

Rear return air

(optional)

Bottom return air = 248

Rear return air = 226

198

Rear return air = 243

Bottom return air = 248

143312701243

Detail A

720

990

820

963

793

693

883

1153

983

Hot

water coil

156

186

Hot water coil

(optional)

Drainage pipe

Water inlet pipe joint

ZG1/2" for single-row

ZG3/4" for double-row

223

710x198

Hx198

980x198

810x198

Electrical control box

Drain pipe outlet

joint (3/4" external thread)

1260x198

5/8"

3/8"

1332

1/4"

3/8"

1/4"

1052

882

782

5/8"

1/2"

3/8"

Hoisting hole (6), see detail A

211 18812

Air return plenum

MW(C)D524MM

MW(C)D509MM

MW(C)D512MM

MW(C)D518MM

Ø11

Ø18

Ø11

Ø18

Size of return

air opening

AMS-SVX04A-EN 7

Unit Dimension

126

270 14

200

197

Hoisting hole (4), see detail A

Centrifugal fan

Motor

Drain pipe outlet

joint (3/4" external thread)

Electrical control box

Ø11

Detail

Drain pipe outlet

joint (3/4" external thread)

Detail

Ø18

Ø11

Ø18

Outlet pipe

Inlet pipe

MW(C)D516/518

MW(C)D511/512

MW(C)D507/509/510

983

1153

883

990

820

720

793

963

693

1/4"

3/8"

1/4"

5/8"

1/2"

3/8"

211

Joint fixing plate

Drain pan

Heat exchanger

Joint fixing plate

Drain pan

Heat exchanger

Air strainer

183.5

409

295

487

510

113

1. Only main unit, no accessories selected by the customer: MW(C)D507~518NM***

183.5

200

126

270

Outlet pipe

Inlet pipe

Electric heater

211

207

Electrical

control box

Air return

plenum

Rear return air

(optional)

Bottom return air

(optional)

167

113

295

522

2. Main unit + accessories selected by the customer: MW(C)D507~518NM***

782

882

1052

693

793

963

CBA

820

990

720

983

1153

883

810x167

980x167

Size of return

air opening

Hx167

710x167

3/8"

1/4"

1/2"

5/8"

3/8"

MW(C)D516/518

MW(C)D511/512

MW(C)D507/509/510

Dimensions

(unit: mm)

Model

Unit weight

(Kg)

Inlet

pipe Ø

Outlet

pipe Ø

Dimensions

(unit: mm)

Model

Inlet

pipe Ø

Outlet

pipe Ø

Slim model

8 AMS-SVX04A-EN

Unit installation

Precautions

Be sure to take out the indoor unit from the packing case. When handling the air conditioner, •

please hold the stress area of the air conditioner, such as lifting lug etc., not the steam pipe,

liquid pipe or drainage pipe;

Select the place where a relatively short duct is used, the quantity of connecting work is minor •

and it is convenient to wire and couple the pipe, and connect with indoor unit;

Make sure that the bearing strength of the installation site is enough to undertake the weight of •

the indoor unit; or else, unit damage or personal injury may be caused;

Make sure that the strength of the hoisting screw is sufﬁ cient to withstand the weight of the •

unit, and at least 4 ones should be used;

Ensure good ventilation so that the air ﬂ ow can be blown throughout the room;•

Obstruct should be put away from the air inlet or outlet so that the air may be circulated freely;•

Make sure that there are enough space for service and maintenance. The access door is located •

at the side of the electrical control box so as to be convenient for service and maintenance;

Install the indoor unit at a place where is apart from the lighting facilities using ballasts. When •

operating the wireless remote controller, the ballast can lead to receiving failure;

Keep the indoor unit far from direct sunlight.•

Installation of the concealed indoor unit

Hang the unit up on a ﬁ rm and horizontal support such as the ceiling. In case that the hoisting 1.

surface is not ﬁ rm, noise, vibration or leakage will be caused. See the following ﬁ gure.

Wall

Outside

Inclined

Drainage pipe

AMS-SVX04A-EN 9

Unit Installation

Installation of the indoor unit with ducts refers to the following ﬁ gure.2.

Mounting roof

Supply air

Wide expansion bolt

Wide lock washer

Hanging screw

Nut

B rivet

Supply air channel

Air outlet grille

Unit roof plate

Roof plate with screws

A enlarged

Unit

Return air

Ceiling

10 AMS-SVX04A-EN

Unit Installation

Support the unit ﬁ rmly.3.

Remove the junction box lid to connect the wire with the terminals.4.

Make sure that there are enough space for maintenance, as shown in the ﬁ gure (A ġ B =

Unit length ġ Width);

Select a place for hanging. Mount the suspension rod, and ﬁ x it ﬁ rmly;

Check whether the suspension rod is aligned with the unit, and lift the unit on the

suspension rod;

Set the drainage slope according to the right ﬁ gure. Make sure that there is a gradient in the

direction of drainage of the indoor unit. Then, screw down the nuts on the suspension rod.

≥1500

Concealed type

indoor unit

Surrounding space of the unit

≥50

A B at least

Suspension rod

Ceiling

Service and maintenance space

AMS-SVX04A-EN 11

Preparation and installation of air duct

Precautions

When designing the air duct, please design the air channel according to the external static •

pressure of the unit. The resistance of the air channel is equal to the static pressure; otherwise,

the air volume may be too large or small, resulting in failure of unit operation;

Make sure that the distance between the indoor return air opening and air inlet of the heat •

exchanger is greater than or equal to 1 m;

Rational design of the air duct may eliminate noise effectively;•

Make the external static pressure balanced with the duct resistance by changing the rotating •

speed of the fan or regulating the resistance of the air duct (e.g., by adjusting the air-out speed of

the diffuser);

An insulating layer should be provided to reduce energy loss during transmission and separation •

of condensate water;

The return air duct and air outlet duct should be ﬁ xed to the precast slab of the ﬂ oor with iron •

stands, and all joints of the air duct should be sealed with sealant;

The distance between the wall and return air duct or air outlet duct is greater than or equal to •

150 mm.

Installation of the return air duct

When bottom return air is selected, fold a piece of canvas duct purchased or self-made, use it •

as the transition joint between the return air opening and return air grille, make free regulation

depending on the height of the indoor ceiling, and prevent vibration of the ceiling during

operation of the unit.

When bottom return air is selected, prepare the return air duct, connect its one end to the return •

air opening of the indoor unit with rivets, and another end to the return air grille, as shown in

following ﬁ gures

Rear return air: Rear return air:

Return air duct

Air return plenum

Return air grille

Canvas duct

Connected

by rivets

Canvas duc

Return air grille

Connected

by rivets

Unit Installation

12 AMS-SVX04A-EN

Installation of air outlet duct

The air outlet duct may be rectangle or round: rectangle duct may be connected directly to the •

air outlet of the indoor unit with rivets; round duct should be connected to the air outlet of the

indoor unit after adding a transition duct, and another end may be separate or be connected to

the air outlet grille, as shown in following ﬁ gure:

Fan speed of each grille shall be uniform basically so as to meet the air conditioning requirement •

of the room.

Return air duct

Canvas duct

Return air grille

Air outlet duct

Strainer

Air outlet grille

Suspension rod

Indoor unit

Transition duct

Unit Installation

AMS-SVX04A-EN 13

Installation of refrigerant pipe

Three principles of installing the refrigerant pipe

ā Cause Measures against failure

Drying

Rainwater, water for engineering invaded

from outside

Processing Ś Purging Ś Vacuum drying

Invasion of condensate water in the pipe

Cleaning

Oxide formed in the pipe during welding Replace nitrogen gas

Dust, impurities invaded from outside Purging

Tightness

Incomplete welding Use appropriate material Ś (copper tube, welding rod)

Air leakage from horn tube Strictly comply with basic operation of the horn tube

Air leakage from side

Strictly comply with basic operation of welding

Strictly comply with basic operation of pipe connection

Flared coupling of the refrigerant pipe

Cutting of the pipe should be carried out by using a pipe cutter. If the pipe size is too large, a •

metal cut saw may be used, but prevent saw dust entering into the pipe;

Only the ﬂ are nut attached to the unit may be used. Before ﬂ aring, ﬁ rst mount the nut on the •

copper tube;

Check whether there are damages on the ﬂ ared surface. After the mouth of the copper tube is •

ﬂ ared, keep concentric. Burr, cracks, folding, etc. are not allowed;

When coupling the ﬂ are opening, apply ester oil or ether oil to inner and outer surfaces of the •

opening, and ﬁ rst screw the nut by 3 ~ 4 turns;

Tighten the ﬂ are nut by a proper torque, but do not damage the nut because of excessive torque. •

Hold the pipe with two spanners.

R 0.4~0.8

90°±2°

45°±2°

Torque wrench

Spanner

Piping joint

Flare nut

Size

(mm)

Tightening torque

Size of flared pipe A

(mm)

Ø6.35

14.2~17.2 N•m

(144~176 Kgf•cm)

8.7~9.1

Ø9.52

32.7~39.9 N•m

(333~407 Kgf•cm)

12.8~13.2

Ø12.70

49.5~60.3 N•m

(504~616 Kgf•cm)

16.2~16.6

Ø15.88

61.8~75.4 N•m

(630~770 Kgf•cm)

19.3~19.7

Ø19.05

92.7~118.6 N•m

(990~1210 Kgf•cm)

23.1~23.7

14 AMS-SVX04A-EN

Installation of refrigerant pipe

Welding of refrigerant pipe

Make downward or ﬂ at lateral welding, and avoid overhead welding as possible;•

For liquid or gas pipes, be sure to care the assembling direction and angle, and avoid refrigerant •

short circuit or oil accumulation;

While welding, the allowed method to replacing nitrogen:•

Nitrogen protection soldering must be used. During the welding, it is necessary to ﬁ ll

0.2 ~ 0.5 kgf/cm

nitrogen in the ﬁ tting pipe to prevent system blockage due to the oxide

generated in welding;

After ﬁ nishing the welding, cool naturally or by purging nitrogen, but cold water spraying is

not allowed to avoid crack generation of the crater because of shock chilling.

Try to reduce the number of bends. When bending the pipe, the bending radius should be as •

large as possible;

Standard space for supports of the pipe is as follows:•

Nitrogen

Manual valve

Plug

Welding zone

Pressure regulato

Nitrogen cylinder

Pressure hose

Pipe size 20 mm below 20 ~ 45 mm 45 mm above

Max. interval (m) 1.0 1.5 2.0

Purging of refrigerant pipe

During erecting and constructing the ﬁ tting pipe, it is hard to avoid dust, water vapor entering the

pipe. Therefore, after completion of ﬁ tting pipe construction, it is necessary to purge the pipe with

nitrogen.

Liquid pipe

Gas pipe

Pressure regulator valve

Outdoor unit

Indoor unit

Interface not connected temporarily.

Cover the interface of the indoor unit with adhesive tape

The gas used for purging must be nitrogen. The nitrogen cylinder should be equipped with a •

pressure regulator valve.

Connect the pressure regulator valve to the inlet of the outdoor unit at the side of liquid pipe with •

a gas pipe.

Block well all interfaces of the copper tube at the liquid side with blind plugs except those for the •

indoor unit A.

Switch on the nitrogen cylinder, and adjust the valve to 5 Kgf/cm2.•

Check whether the nitrogen passes through the liquid pipe to indoor unit A. (The interface at the •

side of the indoor unit should be covered with adhesive tape to prevent dirt entering.)

AMS-SVX04A-EN 15

Installation of refrigerant pipe

Purging:•

Sustain the liquid pipe of the indoor unit with the insulating material in the hand.a.

When it is incapable to resist due to change of pressure, remove the insulating material b.

quickly, and make the nitrogen blow off fast from the pipe mouth (ﬁ rst purging).

Then resist the pipe mouth with the insulating material (second purging).c.

Place a piece of clean cloth in front of the mouth, the nitrogen is ejected onto the cloth, and d.

dirt contained in the high-speed nitrogen is found. If the cloth becomes wet, it indicates that

water exists in the pipe. Repeat purging till no dirt is blown off and the cloth does not be

wet.

For indoor unit B, repeat the above mentioned operation.•

After ﬁ nishing working on the liquid pipe, carry out the aforesaid purging for the gas pipes.•

Leakage detection and heat insulation of refrigerant pipe

After construction of the ﬁ tting pipe ﬁ nishes, a tightness test should be applied to the whole •

refrigerating system (indoor unit and pipe). Fill the nitrogen to a speciﬁ c pressure (R410A model

– 38 Kgf/cm

) simultaneously from both sides of the gas and liquid pipes, view whether there is

change of pressure, check whether each interface (welding or ﬂ ared) and the whole system have

good tightness, and see if there have leakage sources.

Caution: when the air temperature at the time of pressurization is different from that at the time •

of observation, correction should be carried out according to the following equation:

Actual value = Pressure at the time of pressurization + (Temperature at the time of pressurization •

– Temperature at the time of observation)ġ0.1 Kgf/cm

If no gas leakage is detected, insulate the ﬁ tting pipe with heat insulating material. The gas pipe •

and liquid pipe need insulating respectively.

Surface

wrapping tap

Control

cable

No heat

insulation

for the joint

Heat

insulation

● The gas pipe and

liquid pipe should

not be insulated

together

● Coupling portion

of the fitting pipe

should be

insulated

completely

● Only the gas pipe

is insulated

(cooling only)

● Both the gas pipe

and liquid pipe are

insulated

● Insulated support

Incorrect

Liquid pipe

Gas pipe

Liquid pipe

Control

cable

Surface

wrapping

tap

Gas pipe

Heat

insulation

Copper tube

Arc gasket

Metal

support

Heat

insulation

Heat

insulation

Heat insulation

Surface

wrapping tap

Gas

pipe

Liquid

pipe

Correct

Control

cable

For more requirements of lines, please refer to the Installation, Operation and Maintenance Manual of

outdoor unit.

16 AMS-SVX04A-EN

Precautions

Before connecting the drainage pipe, ﬁ rst dismount the drain plug on the left or right side of the •

bottom plate;

The condensate pipe should be as short as possible drains in run-off elevation (under way), avoid •

the drainage pipe up and down, and prevent counter ﬂ ow of the condensate water;

A 1/100 or more gradient should be provided for installation of the horizontal drainage pipe. •

Moreover, the hose should be ﬁ xed with suspension rods, and the distance between them is 1.0

to 1.5 m.

Distance between the suspension rods of the horizontal drainage pipe:

Material Nominal diameter Distance

Hard PVC pipe 25 ~ 40 mm Less than 1.5 m

Connection of drainage pipe

Without drainage pump:

Never install the drainage pipe upwards, or water may ﬂ ow back to the machine.•

Drainage

pipe joint

1~1.5m

Horizontal drainage pipe

(1/100 or more gradient)

Hoisting screw

Ceiling

Drainage pipe joint

With drainage pump:

The draining height outside the unit may not exceed 500 mm, or else water leakage may be •

caused;

First raise the drainage pipe by 300 ~ 500 mm, then down to 20 mm at least.•

1 1.5m

Suspension rod

Horizontal drainage pipe

(1/100 or more gradient)

≥20mm

≤500mm

Ceiling

Indoor unit

Installation of refrigerant pipe

AMS-SVX04A-EN 17

Installation of refrigerant pipe

Concentrated drainage

Please select the drainage pipe with a diameter adapting to the running capacity of the unit.

Without drainage pump:

≥100

Indoor unit Indoor unit Indoor unit

Ceiling

Concentrated drainage pipe,

gradient ≥ 1/100

(Slim line) Duct type

With drainage pump:

When 3 or more indoor units are installed, a main air vent is provided for the indoor unit having a

farthest distance from the main drainage pipe.

Suspension

Main air vent

Concentrated drainage pipe,

gradient ≥ 1/100

1.5m

Indoor unit

Indoor unitIndoor unit

Ceiling

≤500

Main drainage

Drainage testing

Check the smoothness of drain after installation. Check the drain state by ﬁ lling about 2 L water •

into the drain pan of the indoor unit as shown in the following ﬁ gure;

Set up the model of the drainage pump, run the unit in cooling mode, and check pumping;•

Check the drain at the end of the drainage pipe. Make sure that the condensate water drains •

smoothly, and no water leakage exists.

After completion of testing, insulate the condensate pipe.•

Drainage

pipe

18 AMS-SVX04A-EN

Electrical control wiring

Concealed type indoor unit

Remove the electrical control box lid of the concealed type indoor unit, pull wires inside through 1.

incoming hole at the side of the control box, and connect live wire L to terminal 1, neutral line N

to terminal 2, earthing wire to copper earthing screw. Be sure to wire properly according to the

unit wiring diagram, and ensure ﬁ rm connection.

Pull communication lines from other indoor unit or outdoor unit inside through the incoming hole 2.

at the side, and connect to CN4/CN5 terminals of the controller based on following relation:

RS485 wire sequence A B Shielding layer

CN4/CN5 terminal A B G

When matching the wired controller, pull communication line from the wired controller inside 3.

through the incoming hole at the side of the control box, and connect to CN3 terminal of the

controller.

After ﬁ nishing the above wiring, close the junction box lid.4.

Precautions:

All wiring should comply with the local laws and regulations; 1.

It is suggested that power line ≥ 1.5 mm2.

. If electric heater is provided for the unit, the

speciﬁ cation for power line should be improved accordingly;

It is suggested that conductors provided by Trane factory is used for the communication lines of 3.

the indoor and outdoor units. The shield twisted pair is 0.5 ~ 1.25 mm

, twist pitch is less than 10

cm;

Control signal has A and B polarities. Connection of different polarities is prohibited (A and B may 4.

not be connected);

While the power line is laid in parallel with the communication line, a certain distance must be 5.

retained.

Wired controller

Supporting rack of the wired controller base plate is shown in following ﬁ gure. When being 1.

installed, the base plate must be ﬂ ush with the wall surface.

AMS-SVX04A-EN 19

Plug the terminal of shielded communication line in corresponding place of the wired controller.2.

To wired controller

Cover the front cover plate of the wired controller.3.

DIP setting of the controller

DIP for model of indoor unit DIP for address of indoor unit Shift selection of indoor fan

S1 S2 S3 S4 S5 S6 S7 S8

DIP for model of the indoor unit

If model of the indoor unit differs, the DIP setting of the control panel is different. There are 8 DIP

switches on the control panel of the indoor unit, of which S1, S2, S3 and S4 are for model, and their

settings are as shown in following table:

Model of indoor unit S1 S2 S3 S4

MW(C)D507 0 0 0 0

MW(C)D509 0 0 1 0

MW(C)D510 0 0 1 1

MW(C)D511 0 1 0 0

MW(C)D512 0 1 0 1

MW(C)D516 1 0 0 1

MW(C)D518 1 0 1 1

MW(C)D524 1 1 1 0

Electrical control wiring

20 AMS-SVX04A-EN

Page is loading ...

Trane MWC524 Installation & Operation Manual

Brand: Trane

Model: MWC524

Category: Split-system air conditioners

Type: Installation & Operation Manual

Download PDF

report

Trane MWC524 Installation & Operation Manual

Trane MWC524 Installation & Operation Manual

Related papers

Other documents