HIGH STATIC PRESSURE

DUCT FAN & COIL

MDV-D71T1/VN1-B, MDV-D80T1/VN1-B, MDV-D90T1/VN1-B,

MDV-D112T1/VN1-B, MDV-D140T1/VN1-B, MDV-D160T1/VN1-B.

INSTALLATION MANUAL

MAN-I-HSDT-0715

intensity.mx

CONTENTS PAGE

INSTALLATION PRECAUTION..................................................................1

INSTALLATION PLACE............................................................................1

ACCESSORIES........................................................................................2

INTDOOR UNIT INSTALLATION ..............................................................2

INSTALLATION SPACE..........................................................................10

REFRIGERANT PIPE.............................................................................10

DUCT DESIGN.......................................................................................11

INSTALL THE CONNECTING PIPE..........................................................13

REFRIGERANT PIPE CONNECTION........................................................14

CONNECT THE DRAIN PIPE...................................................................15

WIRING.................................................................................................16

CONTROL..............................................................................................17

TROUBLE SHOOTING............................................................................18

INSTALL ELECTRIC THROTTLE PART....................................................19

INSTALL BRANCH PIPE.........................................................................19

TEST OPERATION..................................................................................19

1. INSTALLATION PRECAUTION

To install properly, please read this 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 finished, please turn on the power only after a thorough check.

No further announcement if there is any change of this manual caused by product improvement.

NOTE

The installor should illustrate to users how to correctly use and maintain the air-conditioner, as well as remind users to carefully read and keep both Installation Manual and Owner's

Manual well.

CAUTION

DISPOSAL Do not dispose this product as unsorted municipal waste. Collection of such waste separately for special treatment is necessary.

This appliance is not intended for use by persons (including children) with reduced physical, sensory or mental capabilities, or lack of esperience and knowledge ,unless they have been given supervision or instruction concerning use of the appliance by a person responsible for their safety.

Children should be supervised to ensure that they do not play with the appliance.

Disconnect the power supply before cleaning and maintenance.

2. INSTALLATION PLACE

Indoor Unit

Enough room for installation and maintenance.

The ceiling is horizontal and it can afford the weight of the indoor unit.

The air inlet and outlet are not impeded and does not affected by outdoor air too much.

The air flow can reach every part of the room.

The connecting pipe and drainpipe can be easily extracted out.

There is no direct radiation from heat source.

Outdoor Unit

Enough room for installation and maintenance.

The air inlet and outlet are not impeded and does not affected by outdoor air too much.

Dry and well ventilated place.

The supporter is flat and horizontal and can afford the weigh of outdoor unit, without noise and vibration.

The noise and the outlet air will not influence your neighbor.

No combustible gas.

Place convenient for piping and wiring.

Please keep away from the following places, or malfunction may be caused.(if unavoidable, please consult the professionals):

There is mineral oil like the oil of cutting machine.

There is much salty air. (Near the coast)

There is caustic gas such as sulfuric gas. (Near the hotspring.)

Factory where the voltage fluctuate greatly.

In the car or in the cabin.

In the kitchen or a place full of oil steam.

There is strong electromagnetic wave.

There is combustible gas or materials.

There is much evaporating acid or alkaline gas.

Other special areas.

Notes Before Installation

Select the correct carry-in path.

Move this unit as originally packaged as possible.

If the air conditioner is installed on a metal part of the building, it must be electrically insulated according to the relevant standards to electrical appliances. installation manual

1

NOTE

Remark per EMC Directive 89/336/EEC

For to prevent flicker impressions during the start of the compressor (technical process), following installation conditions apply.

The power connection for the air conditioner has to be done at the main power distribution.The distribution has to be of a low impedance, normally the required impedance reaches at a 32A fusing point.

No other equipment has to be connected with this power line.

For detailed installation acceptance, please refer to your contract with the power supplier if restrictions do apply for products like washing machines, air conditioners or electrical ovens.

For power details of the air conditioner, refer to the rating plate of the product.

For any question contact your local dealer.

3. ACCESSORIES

Table.3-1

Name of

Accessories

Q‘ty

Outline Usage

Installation manual

Wire controller

Pipe insula- tion material

7.1-16.0

20.0-28.0

1

1

(This manual)

Wire control the air-conditioner

2

4

Heat insulation

Water outlet joint

1 For drainage

Clasp

7.1-16.0

1

Chucking the joint which

connect the drain hose and the outlet of indoor unit

To connect drain pipe

Water connec- ting pipe

20.0-28.0

Adhesive tape for seal

1

1

To connect drain pipe

Network matching wire

1

The indoor unit which at the terminal of communication system shouldconnect a impedance between port

P and port Q

The following are selectable accessories

Remote controller & Its Frame

1. Remote controller....................................1

3

Mounting screw

1

Remote controller

2

Remote controller holder

Fig.3-1

Cautions on remote controller installation

Never throw or beat the controller.

Before installation, operate the remote controller to determine its location in a reception range.

Keep the remote controller at least 1m apart from the nearest

TV set or stereo equipment. (It is necessary to prevent image disturbances or noise interferences.)

Do not install the remote controller in a place exposed to direct sunlight or close to a heatingsource, such as a stove.

Note that the positive and negative poles are in right positions when loading batteries.

4. INDOOR UNIT INSTALLATION

Installing 10 Hanging Screw Bolts (4 Bolts)

Please refer to the following figure for the distance measurement between the screw bolts.

Please install with screw bolts.

The handling to the ceiling varies from the constructions, consult the construction personnels for the specific procedures.

The size of the ceiling to be handled Do keep the ceiling flat. Consolidate the roof beam for possible vibration.

Cut off the roof beam.

Strengthen the place cut off, and consolidate the roof beam.

Carry out the pipe and line operation in the ceiling after finishing the installation of the main body. While choosing where to start the operation, determine the direction of the pipes to be drawn out. Especially in case there is a ceiling, position the refrigerant pipes, drain pipes, indoor & outdoor lines to the connection places before hanging up the machine.

The installation of hanging screw bolts.

Wooden construction

Put the square timber traversely overthe roof beam, then install the hanging screw bolts. (Refer to

Fig.4-1

)

Timber over the beam

2. Remote controller holder.........................1

3. Mounting screw

(ST2.9x10-C-H)........................................2

4. Alkaline dry battery(AM4)

..................................................................2

Roof beam

Ceiling

Hanging screw bolts

Fig.4-1

New concrete bricks

Inlaying or embedding the screw bolts (Refer to Fig.4-2)

Blade shape insertion Slide insertion

Fig.4-2

installation manual

2

For original concrete bricks

Use embeding screw bold, crock and stick harmness (refer to Fig.4-3)

Steel bar

Embedding screw bolt

(Pipe hanging and embedding screw bolt)

Fig.4-3

Steel roof beam structre

Install and use directly the supporting angle steel. (refer to

Fig.4-4)

Hanging screw bolt

Hanging bolts

Supporting angle steel

Fig.4-4

Overhanging the indoor unit

Overhang the indoor unit onto the hanging screw bolts with block.

Position the indoor unit in a flat level by using the level indicator, unless it may cause leakage.

Screw nut

Fig.4-6

Fig.4-7

washer

Hanging screw bolt

Overhang part

Fig.4-5

Install the main body

Installing the dust proof net and canvas air passage

Open the air-in grill

Anti-clockwise the bolts as indicated in follow figure sketch.Then pull down the air-in grill.

Take out the air-in grill.

Dismantle the air filter

Clean the air filter (Vacuum cleaner or pure water may be used to clean the air filter. If the dust accumulation is too heavy , please use soft brush and mild detergent to clean it and dry out in cool place).

The air-in side should face down when using water.

(See Fig.4-7)

The air-in side should face up when using vacuum cleaner.

(See Fig.4-8)

Fig.4-8

Pipe Connection

The static pressure outside the unit is 200Pa , the length of the air pipe attached is determined by this parameter.

The positioning of ceiling hole and indoor unit and hanging screw bolts

Routine method of installation: the size of installation for indoor unit following Fig.4-9

Please install with 10 hanging screw bolts.

Carry out the pipe and line operation in the ceiling after finishing the installation of the main body. While choosing where to start the operation, determine the direction of the position the refrigerant pipes, drain pipes, indoor & outdoor lines and linecontrolled lines to the connection places before. installation manual

3

The positioning of ceiling hole and indoor unit and hanging screw bolts

routine method of installation: the size of installation for indoor unit following the Fig.4--9 and Fig.4-10

7.1~11.2KW/h

952

856 86

214

Unit: mm

REFRIGERANT-PIPE FLANED

CONNECTION 9.52(3/8)

REFRIGERANT-PIPE FLANED

CONNECTION 16(5/8)

61

43

PLASTIC COVER

CONNECTING POINT OF

DRAIN PIPE

4-12*25 OBLONG SUSPENTION BOLT HOLES

800

AIR INTAKE

SAFETY DRAIN CONNECTING PIPE

AIR OUTLET DUCT FLANGE

4- 5HOLES FOR AIR

INTAKE DUCT CONNECTION

AIR OUTLET

ELECTRICAL CONTROL BOX

26

255 33

Fig.4-9

65 722 65

14~16KW/h

135

930

88

Unit: mm

REFRIGERANT-PIPE FLANED

CONNECTION 9.52(3/8)

REFRIGERANT-PIPE FLANED

CONNECTION 16(5/8)

61

43

PLASTIC COVER

68

4-12*25 OBLONG SUSPENTION BOLT HOLES

137

CONNECTING POINT OF

DRAIN PIPE

AIR INTAKE DUCT FLANGE

1148

800

AIR INTAKE

4- 5 HOLES FOR AIR

OUTLET DUCT CONNECTION

24

46

90

69

ELECTRICAL

CONTROL

BOX

28

11

SAFETY DRAIN CONNECTING PIPE

AIR OUTLET DUCT FLANGE

65

400

1300

6- 5 HOLES FOR AIR

OUTLET DUCT CONNECTION

400

AIR OUTLET

169

125

64

1073

Fig.4-10

installation manual

4

The method of installation: Adopt following method if the air-conditioning’s size of installationsite is limited and the indoor unit can’t put into the installtionsite.

7.1~11.2KW/h

Fig.4-11

Water Tray

Position A

Position B

11-Screw

Safety Drain Tray

1. The whole unit status show as Fig.4-11

2. Remove the all 11

screw

from fixed Safety Drain Tray, and then take off the tray as figure showed in Fig.5-11.

3. Take off the tray along the direction of the arrow show in Fig.4-12

4. Clean the tray and evaporator.

5. Re-install the unit follow the reverse above orders.

CAUTION

1. Please shut down the unit and cut off power cable before maintain the motor.

2. Don’t heavy pull the foam tray, when dismounting; otherwise the foam tray would break.

Fig.4-12

installation manual

5

4 Bolts

For fixing the fan assembly

Motor Asseembly

FIiler

Fortified panel

4 Screw

For fixing the reinforced panel

Safety Drain Tray 11-Screw

For fixing the satety drain tray

Inside of structure

Side view of fan assembly installation state

Front view of fan assembly installation state

Scroll

Pothook

Fan assembly should push horizontally to the end (about 18mm), and then take o f f it.

Move 18mm

Move

Fig.4-13

The state after fan assembly is taken off

1. Refer to Fig.4- 1 3, remove all 1 1 bolts from safety drain tra y , and take o f f the safety drain tra y .

2. Refer to Fig.4- 1 3, remove all 4 bolts from reinforced panel, and take o f f the panel.

3. Refer to Fig.4-13, remove all 4 bolts from fan assembly, see Fig.4-14, accor ding to which orders to take off the fan assembly.

4. Refer to Fig.4-14, horizontal pushing the fan assembl y , until it cannot not move any furthe r , and then lift up slightly and take down to remove it.

5. After motor maintenance, reinstall the fan assemblies as per the reverse above orders. And connect the motor with electric control box, as motor with power cable of capacit y .

Fig.4-14

CA U TION

1. Please shut down the unit and cut o f f power cabl e before maintain the moto r .

2. Before dismount the fan assembl y , you must remove the motor and electric control box, as well a s connective wires between motor and capacity assembl y .

3. Fan subassembly is very heav y , please be carefu l during maintaining, otherwise physical injury would be caused. installation manual

6

14~16kw/h

Fig.4-15

Position A

Water Tray

Position B

12 Screw

For fixing the safety drain tray

Safety Drain Tray

Fig.4-16

1. The whole unit status show as Fig.4-15.

2. Remove the all 1 1

screw

from fixed Safety Drain T ra y , and then take o f f the tray as figure showed in Fig.4-16.

3. T ake o f f the tray along the direction of the arrow show in Fig.4-16.

4. Clean the tray and evaporato r .

5. Re-install the unit follow the reverse above orders.

CAUTION

1. Please shut down the unit and cut o f f power cable before maintain the moto r .

2. Don’t heavy pull the foam tra y , when dismounting; otherwise the foam tray would break. installation manual

7

maintenance of motor

4 Bolts

For fixing the fan assembly

Motor Assembly

Filter

Safety Drain Tray

12-Screw

For fixing the satety drain tray

Inside of structure

Side view of fan assembly installation state

Front view of fan assembly installation state

Fig.4-17

Scroll

Pothook

Fan assembly should push horizontally to the end (about 18mm), and then take o f f it.

Move 18mm

Move

The state after fan assembly is taken off

1. Refer to Fig.4-17, remove all 1 1

screw

from safety drain tra y , and take o f f the safety drain tra y .

3. Refer to Fig.4-17, remove all 4 bolts from fan assembly, see Fig.4-18, accor ding to which orders to take off the fan assembly.

3. Refer to Fig.4-18, horizontal pushing the fan assembl y , until it cannot not move any furthe r , and then lift up slightly and take down to remove it.

4. After motor maintenance, reinstall the fan assemblies as per the reverse a bove orders. And connect the motor with electric control box, a s well as motor with power cable of capacity.

Fig.4-18

CAUTION

1. Please shut down the unit and cut o f f power cable before maintain the moto r .

2. Before dismount the fan assembl y , you must remove the motor and electric control box, as well as connective wires between motor and capacity assembl y .

3. Fan subassembly is very heav y , please be careful during maintaining, otherwise physical injury would be caused. installation manual

8

20KW/h

25KW/h

28KW/h

1121

75

Entrances and exits for communication lines of indoor and outdoor

4-12*25 oblong suspention bolt holes

Electrical parts box

Air outlet

1443

4- 10 hanging screw

(configure on spot)

Refrigerant-pipe flared connection 9.52(3/8)

Refrigerant-pipe flared connection 16(5/8)

Air intake duct flange

1275

Air intake

936

Air outlet duct flange

200

470

Connecting point of drain pipe

43

125 100

Fig.4-19

The method of installation: adopt following method if the air-conditioning’s size of installation site is limited and the indoor unit can’t put into the installation site.

Fig.4-20

cover plate A

Part A of indoor unit

A screw bolt C

B bolt A

C cover plate B

A

Part B of indoor unit

Fig.4-21

installation manual

9

1

2

3

4

5

6

The indoor unit show as

Fig.4-20

Following Fig.4-21 twist-off the screws, along the direction of A get off the cover plate A and cover plate B.

Dismounting bolt A

Dismounting bolt C

Along the direction of B and C divided the part B and part C of indoor unit.

The part A and part B of indoor unit individual put into the positionsite, then install the indoor unit following the reverse order of step 2,3,4 and 5.

Maintenance of motor

NOTE

During teardown and installation, the scroll was allowed direct support by hand

Fan subassembly is more weightiness, please take careful during teardown and installation, and keep from hurt by fan subassembly.

5. INSTALLATION SPACE

Confirm that there is enough room for installation and maintenance.

Maintenance roomage bolt

Maintenance roomage motor assembly

600mmX600mm checking orifice

Fig.5-1

bottom cover plate screw Confirm the minimum drain tilt is 1/100 or more checking orifice pothook

Fig.5-2

scroll

Fig.4-12

2

3

1

4

5

As figure dismounting the bolt of bottom,get down the bottom cover plate.

As figure dismounting 6 bolts in the front plate.

Support the fan subassembly from the bottom, then litter up, get down fan subassembly.

After finished maintenance of motor, then install the motor assembly in the reverse order of step 1,2 and 3.

During this process,the indoor unit don’t need dismounted.

6. REFRIGERANT PIPE

Cover the pipe before connecting to keep rubbish, dust or other impurities out.

Table.6-1

Piping material Copper special for air conditioner

Capaticyl(KW)

7.1/8/9/11.2/14/16/20/25/28

Piping

Gas side

Liquid side

16

9.52 installation manual

10

7. DUCT DESIGN

Cover the pipe before connecting to keep rubbish, dust or other impurities out.

As there is no dust filter on the indoor unit, other places which are easy to maintaining such as inhalant duct should be installed with dust filter. (Without dust filter, dust adherent on the air heat exchanger may cause failure and water-leak.

Key points of duct connection

Canvas tie-in Canvas tie-in

Air outlet

Isolation booth

Isolation booth checking orifice

Air inlet

Air dust filter

Fig.7-1

NOTE

Other assemblies should be prepared on spot except air conditioner main body.

High Static Pressure Type

20KW/h(50hz)

25KW/h(50hz)

160

140

120

100

80

60

40

20

0

300

280

260

240

220

200

180

High speed

Midium speed

Low speed

2000 2500 3000 3500 4000 4500 5000 5500 6000

Q(m 3 /h)

Fig.7-2

300

280

28KW/h

(50hz)

260

240

220

200

180

160

140

120

100

80

60

40

20

0

High speed

Midium speed

Low speed

2000 2500 3000 3500 4000 4500 5000 5500 6000

Q(m

3

/h)

Fig.7-3

300

280

7.1/8.0KW/h

(50hz)

260

240

220

200

180

160

140

120

100

80

60

40

20

0

High speed

Midium speed

Low speed

800 1000 1200 1400 1600 1800 2000

Q(m 3 /h)

Fig.7-4

300

280

9.0KW/h

(50hz)

260

240

220

200

180

160

140

120

100

80

60

40

20

0

High speed

Midium speed

Low speed

400 600 800 1000 1200 1400

1600 1800 2000

Q(m 3 /h)

Fig.7-5

300

11.2KW/h

(50hz)

280

260

240

220

200

180

160

140

120

100

80

60

40

20

0

High speed

Midium speed

Low speed

400 600 800 1000 1200 1400

1600 1800 2000 2200

Q(m

3

/h)

Fig.7-6

installation manual

11

300

280

100

80

60

40

20

0

260

240

220

200

180

160

140

120

60

40

20

0

220

200

180

160

140

120

100

80

300

280

260

240

160

140

120

100

80

60

40

20

0

280

260

240

220

200

180

300

14KW/h

(50Hz)

280

260

240

220

200

180

160

140

120

100

80

60

High speed

Midium speed

Low speed

40

20

0

300

1000 1500 2000 2500 3000 3500

4000 4500 5000 5000

Q(m 3 /h)

16KW/h

(50Hz)

High speed

Midium speed

Low speed

1000 1500 2000 2500 3000 3500

4000 4500 5000 5000

7.1KW/h

(60Hz)

8.0KW/h (60Hz)

Q(m 3 /h)

High speed

Midium speed

Low speed

Fig.7-7

Fig.7-8

800 1000 1200 1400 1600 1800

2000 2200 2400 2600

9.0KW/h

(60Hz)

11.2KW/h

(60Hz)

Q(m 3 /h)

Fig.7-9

High speed

Midium speed

Low speed

800 1000 1200 1400 1600 1800 2000 2200 2400 2600

Q(m

3

/h)

Fig.7-10

installation manual

12

120

100

80

60

40

20

0

220

200

180

160

140

300

280

260

240

14KW/h (60Hz)

16KW/h (60Hz)

High speed

Midium speed

Low speed

1000 1500 2000 2500 3000 3500 4000 4500 5000 5500

Q(m 3 /h)

Fig.7-11

Heating capacity and cooling capacity are tested under the standard allowable min. static pressure; the 71 test static pressure is 25Pa, 80/90/112 test static pressure is 37Pa,

140/160 test static pressure is 50Pa.

Applicable scope of static pressure

50hz

60hz

7.1kW 8.0kW 9.0kW 11.2kW 14kW 16kW 20kW 25kW 28kW

100 196Pa

100 196Pa

100 196Pa

75 150Pa

110 220Pa

Panel installation

Unload inner frame.

Slide the knob, release the buckle from the outside frame hole, then unload the inner frame.

Inside frame

Knob

Buckle

Outside frame

Fig.7-12

Hang the outside frame on the main body with face down. (4 places at 4 corners).

Hang the belt on the hook of the main body.

Main body

Canvas air passage

Waist-shaped hole fixed board

Ceiling

Hook

Outside frame

Fig.7-13

Belt

Outside frame

Fig.7-14

NOTE

The signal wire of the remote control receiver must be drawn out through the canvas air passage.

Fix the outside frame and the canvas air passage with screws.

Screw must be fixed on from the bottom to the top.

Canvas air passage

NOTE

Connect the remote control receiver with the indoor unit signal wires and fix it.

Install remote controller.

Screw

Ceiling

Fig.7-15

Hang up the outside frame until it sticks to the ceiling tightly.

Main body

Air passage

Canvas air passage

Ceiling

Outside frame

Fig.7-16

Fix the main body and the outside frame with the fix board of waist-shape hole (in two places).

Hang one side of the fix board of the waist-shaped hole on the hook of the main body.

Tighten the other side of the board with screw to the outside frame.

Cut off the surplus part of the board with pliers.

Bend the top of the broken end.

NOTE

When hanging up the outside frame with the fix board of waist-shaped hole and the belt, stick the outside frame tightly to the ceiling and fix it.

Hook

Waist-shaped hole fixed board

Outside frame

Bend

Fig.7-17

Install the inner frame on the outside frame (the inverse sequence of unloading the inner frame).

Air passage

Inside frame

(Reverse side)

Outside frame

Air inlet

Fig.7-18

8. INSTALL THE CONNECTING PIPE

Check whether the height drop between the indoor unit and outdoor unit, the length of refrigerant pipe, and the number of the bends meet the following requirements:

The max height drop and The length of refrigerant pipe deponding on the ouotdoor unit.(If the height drop is more than 10m, you had better put the outdoor unit over above the indoor unit.)

The number bends fewer than 15.

Do not let air, dust, or other impurities fall in the pipe system during the time of installation.

The connecting pipe should not be installed until the indoor and outdoor units have been fixed already.

Keep the connecting pipe dry, and do not let moisture in during installation.

The Procedure of Connecting Pipes

Measure the necessary length of the connecting pipe, and make it by the following way.

Connect the indoor unit at first, then the outdoor unit.

Bend the tubing in proper way. Don,t harm them.

Daub the surfaces of the flare pipe and the joint nuts with frozen oil, and wrench it for 3~4rounds with hands before fasten the flare nuts. (Refer to Fig.8-1)

Be sure to use two wrenches simultaneously when you connect or disconnect the pipes.

The stop valve of the outdoor unit should be closed absolutely

(as original state). Every time you connect it, first loosen the nuts at the part of stop valve, then connect the flare pipe immediately

(in 5 minutes). If the nuts have been loosened for a long time, dusts and other impurities may enter the pipe system and may cause malfunction later. So please expel the air out of the pipe with refrigerant before connection.

Expel the air (refer to the “Expel The Air”) after connecting the refrigerant pipe with the indoor unit and the outdoor unit.Then fasten the nuts at the repair-points.

Notices For Benable pipe.

The bending angle should not exceed 90

Bending position is preferably in the bendable pipe. The larger the better it is .

Do not bend the pipe more than three times.

Bend the connecting pipe of small wall thickness.

Cut out a desired concave at the bending part of the insulating pipe. installation manual

13

Then expose the pipe(cover it with tapes after bending).

To prevent collapsing of deforming, please bend the pipe at its biggest radius.

Use bender to get a small radius pipes.

Use the market brass pipe.

Be sure to use the same insulating materials when you buy the brass pipe. (More than 9mm thick)

Use frozen oil

Bend the pipe with thumb

Fig.8-1

90 lean crude burr

Fig.9-1

9.2 Check The Leakage

Check all the joints with the leak detector or soap water. (See

Fig.9-6 as a reference illustration)

Check-point of indoor unit

D C

Fig.8-2

Check-point of outdoor unit

B A

Make the ends straight

Fig.8-3

Locate The Pipe

Drill a hole in the wall (suitable just for the size of the wall conduit,

90mm in general), then set on the fittings such as the wall conduit and its cover.

Bind the connecting pipe and the cables together tightly with binding tapes. Do not let air in, which will cause water leakage by condensation.

Pass the bound connecting pipe through the wall conduit from outside. Be careful of the pipe all ocation to do no damage to the tubing.

Connect the pipes.

Then, open the stem of stop valves of the outdoor unit to make the refrigerant pipe connecting the indoor unit with the outdoor unit fluently flow.

Be sure of no leakage by checking it with leak detector or soap water.

Cover the joint of the connecting pipe to the indoor unit with the sound proof/insulating sheath (fittings), and bind it well with the tapes to prevent leakage.

9. REFRIGERANT PIPE CONNECTION

9.1 Expel The Air

Flaring

Cut a pipe with a pipe cutter.

Insert a flare nut into a pipe and flare the pipe.

A. Lo-stop valve B. Hi-stop valve

C,D. Joints of the connecting pipe to the indoor unit.

Fig.9-2

9.3 Insulation

Be sure to with insulating materials cover all the exposed parts of the flare pipe joints and refrigerant pipe on the liquid-side and the gas-side. Ensure that there is no gap between them.

Incomplete insulation may cause water condensation.

_

45+2

Fig.9-3

Table.9-1

A(mm)

Outside diameter

6.4mm

9.5mm

12.7mm

15.9mm

19.1mm

Max

8.7

12.4

15.8

19.0

23.3

Min

8.3

12.0

15.4

18.6

22.9

Fig.9-4

installation manual

14

Table.9-2

Tubing size

6.4mm

9.5mm

12.7mm

15.9mm

19.1mm

Torque

14.4~17.2N.m

32.7~39.9N.m

49.5~60.3N.m

61.8~75.4N.m

92.7~118.6N.m

Manifold valve

Multi-meter

Pressure meter

-76 cmHg

Lo-lever

Charge hose

Hi-lever

Charge hose

Fig.9-5

Vacuum pump

Lo-lever

Fasten the nut

Put the connecting tubing at the proper position, wrench the nuts with hands then fasten it with a wrench. (Refer to

Fig.9-4

Too large torque will harm the bellmouthing and too small will cause leakage. Please determine the torque according to

Table.9-2.

All the stop valves should be opened before test operation.

Each air conditioner has two stop valves of different sizes on the side of the outdoor unit which operate as Lo-stop value, respectively. (Refer to Fig.9-6)

Flare nut

Stopper

Cap

The necessary filling amount of refrigerant

Refrigerant volume to be added is calculated according to outdoor unit installation manual .Be sure to add refrigerant measuring by a scale. L: The length of the pipe

Please record the quantity added and store it carefully for future maintenance.

Expel the air with a vacuum pump (Refer to Fig.9-4) (Please refer to its manual for the way of using manifold valve)

Loosen and remove the maintenance nuts of stop valves A and B, and connect the charge hose of the manifold valve with the maintenance terminator of stop valve A. (Be sure that stop valves A and B are both closed)

Connect the joint of the charge hose with the vacuum pump.

Open the Lo-lever of the manifold valve completely.

Turn on the vacuum pump. At the beginning of pumping, loosen the maintenance terminator nut of stop valve B a little to check whether the air comes in (the sound of the pump changes, and the indicator of compound meter turns below zero). Then fasten the nut.

When the pumping has finished, close the Lo-lever of the manifold valve completely and turn off the vacuum pump.

When you have pumped for over 15 minutes, please confirm that the indicator of multimeter is on -1.0X105Pa (-76cmHg)

Loosen and remove the quadrangle cover of stop valves A and B to open stop valve A and B completely, then fasten them.

Disassemble the charge hose from the repair-mouth of stop valve A, and fasten the nut.

Valve body

Fig.9-6

Valve stem

10. CONNECT THE DRAIN PIPE

Install indoor unit drain pipe

The outlet has PTI screw bread, For 71T1 to 160T1 indoor unit,please use sealing materials and pipe sheath (fitting) when connecting PVC pipes. For 200T1 to 280T1 indoor unit,please use Water connecting pipe and Adhesive tape for seal when connecting drain pipes.

CAUTION

The drain pipe of indoor unit must be heat insulated, or it will condense dew, as well as the connections of the indoor unit.

Hard PVC binder must be used for pipe connection, and make sure there is no leakage.

With the connection part to the indoor unit, please be noted not to impose pressure on the side of indoor unit pipes.

When the declivity of the drain pipe downwards is over 1/100, there should not be any win ding.

The total length of the drain pipe when pulled out traversely shall not exceed 20m, when the pipe is over long, a prop stand must be installed to prevent winding.

Refer to the figures on the right for the installation of the pipes.

1.5M~2M

Fig.10-1

Bend

S shap installation manual

15

Put as deep as possible

(about 10mm)

Downward declivity lower than 1/100

VP30

Fig.10-2

Caution: While connecting the drain pipe, please use the drain pipe connect to the secondary water holder simultaneously, for avoiding there are little condensate water deposit in the unit when the machine is running under the high humidity working condition.

11. WIRING

Attaching wiring

The air conditioner should use separate power supply with rated voltage.

The external power supply to the air conditioner should have ground wiring, which is linked to the ground wiring of the indoor and outdoor unit.

The wiring work should be done by qualified persons according to circuit drawing.

A leakage protector should be installed according to the National

Standard concerning electrical appliance.

Be sure to locate the power wiring and the signal wring well to avoid cross-disturbance and their contact with connecting pipe or stop value body.

The wiring attached to this air conditioner is 10m 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.

Do not turn on the power until you have checked carefully after wiring.

The Specification of Power

Table.11-1

Power

Capacity(KW)

Phase

Frequency and volt

71/80/90/112/140/160 200/250/280

1-Phase

Circuit breaker/fuse (A)

Indoor unit power wiring (mm

2

)

Indoor/outdoor connecting wiring(mm 2 )

Ground wiring

Weak electric signal

220-240V 50Hz / 208-230V~60HZ 220-240V 50Hz

10/10

16/10

2.5(<20 m)-4.0(<50 m)

2.0

0.75(<1200 m)

CAUTION

A disconnection device having an air gap contact separation in all active conductors should be incorporated in the fixed wiring according to the National Wiring Regulation.

Communication Wiring Chart

Communication wiring will be different according to the horse- power of air-condictioners. The wiring of 71T1 to 160T1 indoor unit, please refer to Fig.11-1, and Fig.11-2 is the communication wiring for 200T1, 250T1 and 280T1 indoor unit. installation manual

16

OUTDOOR UNIT

P Q E

INDOOR UNIT

XT2

X Y E

INDOOR UNIT

XT2

P Q E

X Y E

CENTRAL CONTROL

MONITOR

F

1

F

2

E

X Y E

INDOOR UNIT

XT2

COMPUTER

INDOOR UNIT

XT2

Fig.11-1

OUTDOOR UNIT

P Q E

INDOOR UNIT

XT2 XT3

P Q E

INDOOR UNIT

XT2 XT3

P Q E

INDOOR UNIT

XT2 XT3

X Y E X Y E

CENTRAL CONTROL

MONITOR

F

1

F

2

E

COMPUTER

INDOOR UNIT

XT2 XT3

Fig.11-2

CAUTION

The reserved function is indicated in broken line table,users can select it when necessary.

Terminal board diagram

Please refer to the indoor unit wiring diagram for the detailed wiring. In accord with the communication wiring, terminal board wiring is different according to the horsepower of air-condictioners.

The wiring of 71T1 to 160T1 indoor unit, please refer to Fig.11-3, and Fig.11-4 is the wiring for 200T1, 250T1 and 280T1 indoor unit.

NOTE

The air-conditioners can connect with Central Control

Monitor (CCM). Before operation, please wiring correctly and set system address and network address of indoor units.

INDOOR UNIT

220-240V~ 50Hz / 208-230V~60Hz

Please use 3-core shielding wire, and ground the shielding layer.

Fig.11-3

INDOOR UNIT

220-240V~ 50Hz

Please use 3-core shielding wire, and ground the shielding layer.

Fig.11-4

12. CONTROL

Horsepower set

Base on different purposes to set the switch codes on the main boards of indoor unit, Once finish the setting, please cut off the main power, and then switch on the power again. Otherwise, setting functions could not work.

Horsepower code

D

E

C

B

00 1 2

A

89

7

3

4

6

ENC1

Fig.12-1

ENC1 is used for setting the refrigeration capacity(refer to

Table.12-1 for different indoor unit) of the indoor unit.

Table.12-1

ENC1

Note: The horsepower has been set before leaving the factory, anyone can’t modify it except the maintenance person.

Toggle switch

Code

4

5

2

3

0

1

6

7

8

9

A

For set horsepower

Capacity(Horsepower)

2200W(0.8HP)

2800W(1.0HP)

3600W(1.2HP)

4500W(1.5HP)

5600W(2.0HP)

7100W(2.5HP)

8000W(3.0HP)

9000W(3.2HP)

10000W(4.0HP)

11200W(4.0HP)

12500W(5.0HP)

14000W(5.0HP)

16000W(6.0HP)

NOTE

200T1: Please dial switch ENC1 to 8 (both system A and B).

250T1: Please dial switch ENC1 to 9 for system A and 8 for system B.

280T1: Please dial switch ENC1 to 9 (both system A and B).

Network Address Setting

When V4+ outdoor unit set the code to be found address automatically, the new V4+ indoor unit do not need to set the indoor unit address, at this time the V4+ outdoor unit will distribute different addresses for indoor units automatically.

When V4+ outdoor unit set the code to be found address non-automatically, all the indoor units must set the system addresses by remote controller first (For the setting system address of indoor unit which has two or more main boards, it has to separate use the display board connected with tencore connecting wire to set the address for each mainboard).

The setting of network address is through the communication of indoor and outdoor units, its address is the same as the indoor unit system address, and not need to set separate.

When all indoor units are V4+ series indoor unit, the central controlling of indoor unit can be finished in the outdoor unit, and not need to make central control in the indoor unit, the detail please refers to the V4+ outdoor unit instruction manual;.

For the previous indoor unit’s central control function, can use (X, Y, E) terminal to connect and form the central control group, at this time there is not need to set the network address, and also can use outside setting network module, mainboard (CN20) to form network.

Mainboard codes indication label

SW 1 Difinition

ON

SW1

1234

ON

SW1

1234

SW1

ON

1234

ON

SW1

1234

ON

SW1

1234

SW1

ON

1234

1 means factory test mode

0 means auto addressing mode

(default setting)

1 means DC fan is chosen

0 means AC fan is chosen

00 means DC fanstatic pressure is 0 (reserved)

01 means DC fanstatic pressure is 1 (reserved)

10 means DC fanstatic pressure is 2 (reserved)

11 means DC fanstatic pressure is 3 (reserved)

J1, J2

Difinition

J1

auto restart function

J1

non-auto restart function

J2

r eserve d installation manual

17

SW 2 Difinition

SW2

ON

1234

ON

SW2

1234

SW2

ON

1234

ON

SW2

1234

ON

SW2

1234

SW2

ON

1234

ON

SW2

1234

ON

SW2

1234

00 means shutting down the unit to “stop cold air” at 15

01 means shutting down the unit to “stop cold air” at 20

10 means shutting down the unit to “stop cold air” at 24

11 means shutting down the unit to “stop cold air” at 26

00 means the time of stopping

TERMAL fan is 4 mintue

01 means the time of stopping

TERMAL fan is 8 mintue

10 means the time of stopping

TERMAL fan is 12 mintue

11 means the time of stopping

TERMAL fan is 16 mintue

SW 5 Difinition

ON

SW5

00 means temp. compensation value is 6 under heat mode

ON

1 2

SW5

01 means temp. compensation value is 2 under heat mode

ON

1 2

SW5

10 means temp. compensation value is 4 under heat mode

ON

1 2

SW5

11 means temp. compensation value is 8 under heat mode

1 2

SW6 Difinition

ON

SW6

1 means old display panel

0 means new display panel

ON

1 2 3

SW6

1 means auto air blow under

auto mode

0 means auto air blow under

non-auto mode

ON

1 2 3

SW6

reserved

1 2 3

SW7 Difinition

ON

SW7

standard configuration

1 2

ON

SW7

last unit of the network

1 2

0/1 Difinition

ON

ON

means 0

means 1

CAUTION

Please adjust the code ENC1 to the suitable position (both system A and B should be adjusted for 200T1, 250T1 and

280T1 indoor unit). installation manual

18

For 200T1 unit, two mainboards in the electric control should set the code ENC1 to 8;

For 250T1 unit, a mainboard in the electric control should set the code ENC1 to 8; the other one should set the code

ENC1 to 9;

For 280T1 unit, two mainboards in the electric control should set the code to 9.

For the same indoor unit, every mainboard must be differ- ent indoor unit addresses and network addresses.

When using central controller to control the indoor unit, please pay attention to the address setting, as the 220T1,

250T1 and 280T1 units have two or more mainboards. We suggest setting the neighbor address for the mainboards in the same indoor unit. When using a central controller for controlling, mainboards in the same unit must be opened and closed at the same time, for avoiding the unexpected incident.

13

. TROUBLE SHOOTING

Table.13-1

NO. Type Contents LED Lamp flash

1

The evaporator

Malfun- ction sensor check point is abnoma or room temp. sensor is abnormal.

Run lamp flashes at 2.5Hz.

Remarks

After the malfunctions disappear, it restores automatically.

2

3

4

5

Malfun- ction

Indoor/outdoor unit communication is abnormal.

Condenser sensor

Malfun- ction check point is abnormal or outdoor temp. sensor is abnomal

The timer lamp

flashes at

2.5Hz.

All the indoor alarm lamps flash at 0.5Hz.

After the malfunctions disappear, it restores automatically.

After the malfunctions disappear, it restores automatically.

Malfun- ction

Alarm

Water level switch

is abnormal

Mode conflict

Alarm lamp flashes at 2.5Hz.

Defrost lamp flashes at

2.5Hz.

If the malfunctions can’t be solved in three min. all the indoor alarm lamps flash at 0.5Hz.Turn off the power to restore.

When the indoor unit turns to heating mode or is turned off, the alarm will disappear.

6

7

Malfun- ction

EPPROM error

Defrost lamp flashes at

0.5Hz.

After the malfunctions disappear, it restores automatically.

Alarm

The indoor unit without an add- ress when it is first time electri- fied

Timer lamp and run lamp flash at 2.5Hz together.

After the malfunctions disappear, it restores automatically.

Infrared signal receiver

Temporary button

Operation lamp

Timer indicator Alarm indicator

PRE-DEF indicator(cooling and heating type) or fan only indicator(cooling only type)

Fig.13-1

14

. INSTALL ELECTRIC THROTTLE PART

Please refer to the following figures to install.

Connective Pipe 1

Connective Pipe 2

Fig.14-1

15

. INSTALL BRANCH PIPE

Hi-pressure pipe

Low-pressure pipe

Liquid branch pipe

12.7

10m

9.5

Electric throttle part

9.5

15.9

25.4

Gas branch pipe

15.9

Fig.15-1

Branch Part should be installed in horizontal mode or vertical mode.

Install vertically

Main pipe is vertical to horizontal plane

Install horizontally

A

B

Fig.15-2

Fig.15-3

16

. TEST OPERATION

The test operation must be carried out after the entire installation has been completed.

Please confirm the following points before the test operation:

The indoor unit and outdoor unit are installed properly.

Tubing and wiring are correctly completed.

The refrigerant pipe system is leakage-checked.

The drainage is unimpeded.

The heating insulation works well.

The ground wiring is connected correctly.

The length of the tubing and the added stow capacity of the refrigerant have been recorded.

The power voltage fits the rated voltage of the air conditioner.

There is no obstacle at the outlet and inlet of the outdoor and indoor and indoor units

The gas-side and liqid-side stop vaule are both opened.

The air conditioner is pre-heated by turning on the power.

According to the user’s requirement, install the remote controller frame where the remote controller’s signal can reach the indoor unit smoothly.

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 through chapter “Troubles And Causes ”in the “Owner’sManual”.

The indoor unit

Whether the switch on the remote controller works well.

Whether the buttons on the remote controller works well.

Whether the air flow louver moves normally.

Whether the room temperature is adjusted well.

Whether the indicator lights normally.

Whether the temporary buttons works well.

Whether the drainage is normal.

Whether there is vibration or abnormal noise during operation.

Whether the air conditioner heats well in the case of the

HEATING/COOLING type.

The outdoor unit

Whether there is vibration or abnormal noise during operation.

Whether the generated wind, noise, or condensed water by the air conditioner have influenced your neighborhood.

Whether any of the refrigerant is leaked.

CAUTION

Protection function will delay the startup of compressor for 3 minutes in case the unit is turned on immediately after power on or restarted after shutdown. installation manual

19