MW BETA Series Manuel utilisateur

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BETA series

Model:

BETA 12K WIFI

BETA-installation-manual-EN-

R1 27.07.2020

SPLIT TYPE INVERTER AIR-CONDITIONER

BETA series

Models:

BETA 12K WIFI

INSTALLATION MANUAL

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2 / 14

BETA series

Model:

BETA 12K WIFI

BETA-installation-manual-EN-

R1 27.07.2020

TABLE OF CONTENTS

1.Sellecting the installation place ...................................................................................................................... 3

1.1.Indoor unit ................................................................................................................................................ 3

1.2.Outdoor unit ............................................................................................................................................. 3

1.3.Installation diagram .................................................................................................................................. 3

2.Installation of the indoor unit ......................................................................................................................... 4

2.1.Installation of the mounting plate ............................................................................................................ 4

2.2.Drilling a hole in the wall for the piping ................................................................................................... 4

2.3.Electrical connections indoor unit ............................................................................................................ 4

2.4.Refrigerant piping connection .................................................................................................................. 5

2.5. onnections to the indoor unit ................................................................................................................. 5

2.6.Indoor unit condensed water drainage .................................................................................................... 5

3.Installation of the outoor unit ........................................................................................................................ 6

3.1.Outdoor unit condensed water drainage (only for heat pump models) .................................................. 6

3.2.Electrical connections ............................................................................................................................... 6

3.3. onnecting the pipes ................................................................................................................................ 7

3.4.Bleeding .................................................................................................................................................... 7

4.Operation test ................................................................................................................................................. 8

4.1.Indoor unit test ......................................................................................................................................... 8

4.2.Outdoor unit test ...................................................................................................................................... 8

5.Infromation for the installer ........................................................................................................................... 9

5.1.Tightening torque for protection caps and flange connection ................................................................. 9

5.2.Wiring diagram ........................................................................................................................................ 10

6. able wires specification .............................................................................................................................. 11

6.1.Air conditioner indoor unit fuse parameter is ........................................................................................ 11

6.2.Air conditioner indoor unit fuse parameter is ........................................................................................ 11

6.3.Air conditioner outdoor unit fuse parameter is ..................................................................................... 11

6.4.Air conditioner outdoor unit fuse parameter is ..................................................................................... 11

7.Maintenance ................................................................................................................................................. 12

7.1.Indoor unit .............................................................................................................................................. 12

7.2. leaning the heat exchanger: ................................................................................................................. 12

7.3.End of season maintenance: ................................................................................................................... 12

8.Troubleshooting ............................................................................................................................................ 13

8.1.Possible faults ......................................................................................................................................... 13

8.2.Switch off the air conditioner immediatley and cut off the power supply in the event of .................... 14

8.3.Error signals on the display ..................................................................................................................... 14

3 / 14

BETA series

Model:

BETA 12K WIFI

BETA-installation-manual-EN-

R1 27.07.2020

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1. S

ELLECTING THE INSTALLATION PLACE

1.1. I

NDOOR UNIT

•

Install the indoor unit on a strong wall that is not subject to

vibrations.

•

The in let and outlet ports should no be obstructed: the air

should be able to blow all over the room.

•

Do not install the unit near a source of heat, steam, or

flammable gas.

•

Install the unit near an electric socket or private circuit.

•

Do not install the unit where it will be exposed to direct

sunlight.

•

Select a site where the condensed water can be easily

drained out, and where it is easily connected to outdoor

unit.

•

heck the machine operation regularly and reserve the

necessary spaces as shown in the picture.

•

Select a place where the fiter can be easly taken out.

1.2. O

UTDOOR UNIT

•

Do not install the outdoor unit near sources of heat, steam

or flammable gas.

•

Do not install the unit in too windy or dusty places.

•

Do not install the unit where people often pass. Select a

place where the air discharge and operating sound will not

disturb the neighbours.

•

Avoid installing the unit where it will be exposed to direct

sunlight (other wise use a protection, if necessary, that

should not interfere with the air flow).

•

Reserve the spaces as shown in the picture for the air to

circulate freely.

•

Install the outdoor unit in a safe and solid place.

•

If the outdoor unit is subject to vibration, place rubber

gaskets onto the feet of the unit.

1.3. I

NSTALLATION DIAGRAM

The purschaser must ensure that the person and/or company

who is to install maintain or repair this air conditioner has

qualifications and experience in refrigerant products.

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BETA series

Model:

BETA 12K WIFI

BETA-installation-manual-EN-

R1 27.07.2020

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2. I

NSTALLATION OF THE INDOOR UNIT

Before staring installation, dcide on the position of the indoor and outdoor units, takin into account the minium space reserved

around the units.

•

Do not install your air conditioner in a wet room such as a

bathroom or laundry etc.

•

The installation site should be 250cm or more above the

floor.

2.1. I

NSTALLATION OF THE MOUNTING PLATE

1. Always mount the rear panel horizontally and vertically.

2. Drill 32mm deep holes in the wall to fix the plate.

3. Insert the plastic anchors into the hole.

4. Fix the rear panel on the wall with provided tapping screws.

5. Be sure that the rear panel has been fixed firmly enouh to

withsstand the weight.

•

The shape of the mounting plate may be different from the

one above, but installation method is similar.

2.2. D

RILLING A HOLE IN THE WALL FOR THE PIPING

1. Make the piping hole (

55) in the wall at a slight

downward slant to the outdoor side.

2. Insert the piping-hole sleeve into the hole to prevent the

connection piping and writing from being damaged when

passing through the hole.

•

The hole must slope downwards towards the exterior.

•

Keep the drain pipe down towards the direction of the wall hole,

otherwise leakage may occur.

2.3. E

LECTRICAL CONNECTIONS INDOOR UNIT

1. Open the fron panel.

2. Take off the cover as indicated in the picture (by removing

a screw or breaking the hooks).

3. Fot the electrical connections, see the circuit diagram on

the right part of the unit under the front panel.

4. onnect the cable wires to the screw terminals by

fallowing the numbering. Use wire size suitable to electric

power input (see name plate on the unit) and according to

all current national safety code requirements.

•

An efficient earth connection must be ensured. ptional the wires can been connected to the main PCB of indoor

unit by manufacturer according to the model without terminal block.

5 / 14

BETA series

Model:

BETA 12K WIFI

BETA-installation-manual-EN-

R1 27.07.2020

2.4. R

EFRIGERANT PIPING CONNECTION

The piping can be run in the 3 directions indicated by numbers in

the picture. When the piping is run in direction 1 or 3, cut a notch

along the groove on the side of the indoor unit with a cutter.

Run the piping in the direction of the wall hole and bind the

copper pipes, the drain pipe and the power cables together with

the tape with the drain pipe at the bottom, so that water can flow

freely.

•

Do not remove the cap from the pipe until connecting it,

to avoid dampness or dirty from entering.

•

If the pipe is bent or pulled too often, it will become stiff.

Do not bend the pipe more than three times at on point.

•

When extending the rolled pipe, straighten the pipe by

unwinding it gently as shown in the picture.

2.5. C

ONNECTIONS TO THE INDOOR UNIT

1. Remove the indoor unit pipe cap (check that there is no

debris inside).

2. Insert the fare nut and create a flange at the extreme end

of the connection pipe.

3. Tighten the connections by using two wrenches working

in opposite directions.

2.6. I

NDOOR UNIT CONDENSED WATER DRAINAGE

The indoor unit condensed water drainage is fundamental for the

success of the installation.

1. Place the drain hose below the piping, taking care not to

create siphos.

2. The drain hose must slant downwards to aid drainage.

3. Do not bend the drain hose or leave it protruding or

twiested and do not put the end of it in water. If an

extension is connected to the drain hose, ensure that it is

lagged when it passes into the indoor unit.

4. If the piping is installed to the right, the pipes, power

cable and drain hose must be lagged and secured onto

the rear of the unit with a pipe connection.

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BETA series

Model:

BETA 12K WIFI

BETA-installation-manual-EN-

R1 27.07.2020

After having connected the pipe according to the instructions,

install the connection cables. Now install the drain pipe. After

connection, lag the pipe, cables and drain pipe with the insulating

material.

1. Arrange the pipes, cables and drain hose well.

2. Lag the pipe joints with insulating material, securing it

with vinyl tape.

3. Run the bound pipe, cables and drain pipe through the

wall hole and mount the indoor unit onto the upper part

of the mounting plate securely.

4. Press and push the lower part of the indoor unit thightly

against the mounting plate.

3. I

NSTALLATION OF THE OUTOOR UNIT

•

The outdoor unit should be installed on a solid wall and fastened securely.

•

The fallowing procedure must be observed before connecring the pipes and connecring cavles:

decide which is the best position on the wall and leave enough space to be able to carry out

maintenance easily.

•

Fasten the support to the wall using screw anchors which are particularly suited to the type of

wall.

•

Use a larger quantity of screw anchors the normally rquired for the weight they have to bear to

avoid vibration during operation and remain fastened in the same position for years without the

screws becoming loose.

•

The unit must be installed following the national regulations.

3.1. O

UTDOOR UNIT CONDENSED WATER DRAINAGE

(

ONLY FOR HEAT PUMP MODELS

)

The condensed water and the ice formed in the outood unit during

heating operation can be drained away through the drain pipe.

1. Fasten the drain port in the 25mm hole placed in the part

of the unit as shown in the picture.

2. onnect the drain port and the drain pipe. Pay attention

that water is drained in a suitable place.

3.2. E

LECTRICAL CONNECTIONS

1. Remove the handle on the right side plate of outdoor unit.

2. onnect the power connection cord to the terminal board.

Wiring should fit that of indoor unit.

3. Fix the power connection cord with wire clamp.

4. onfirm if the wire has been fixed properly.

5. An efficient earth connection must be ensured.

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BETA series

Model:

BETA 12K WIFI

BETA-installation-manual-EN-

R1 27.07.2020

6. Recover the handle.

3.3. C

ONNECTING THE PIPES

Screw the flare nuts to the outdoor unit coupling with the same

tightening procedures described for the indoor unit. To avoid

leakage, pay attention to the following points:

1. Tighten the flare nuts using two wrenches. Pay attention

not to damage the pipes.

2. If the tightening torque is not sufficient , there will

probably be some leakage. With excessive tightening

torque there will also be some leakage, as the flange could

be damaged.

3. The surest system consists in tightening the connection by

using a fix wrench and a torque wrench:in this case use the

table on page 10.

3.4. B

LEEDING

Air and humidity left inside the refrigerant circuit can cause

compressor malfunction. After having connected the indoor and

outdoor units, bleed the air and humidity from the refrigerant

circuit by using a vacuum pump.

1. (1) Unscrew and remove the caps from the 2–way and 3–

way valves.

2. (2) Unscrew and remove the cap from the service port.

3. (3) onnect the cauum pump hose to the service port.

4. (4) Operate the caum pump for 10-15 minutes until an

absolute vacuum of 10mm Hg has been reached.

5. (5) With the vacuum pump still in operation, close the low

-pressure knob on the vacuum pump coupling. Stop the

vacuum pump.

6. (6) Open the 2-way valve by 1/4 turn and then close it

after 10 seconds. heck all the joints for leaks using liquid

soap or an electronic leak device.

7. (7) Turn the body of the 2-way and 3-way valves.

Disconnect the vacuum pump hose.

8. (8) Replace and tighten all the caps on the valves.

8 / 14

BETA series

Model:

BETA 12K WIFI

BETA-installation-manual-EN-

R1 27.07.2020

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4. O

PERATION TEST

1. Wind insulating covering around the joints of the indoor unit

and fix it with insulating tape.

2. Fix the exceeding part of the signal cable to the piping or to

the outdoor unit.

3. Fix the piping to the wall (after having coated it with

insulating tape) using clamps or insert them into plastic slots.

4. Seal the hole in the wall through which the piping is passed

so that no air or water can fill.

4.1. I

NDOOR UNIT TEST

•

Do the ON/OFF and FAN operate normally?

•

Does the MODe operate normally?

•

Do the set point and TIMER function properly?

•

Does each lamp light normally?

•

Do the flap for air flow direction operate normally?

•

Is the condensed water drained regularly?

4.2. O

UTDOOR UNIT TEST

•

Is there any abnormal noise or vibration durin operation?

•

ould the noise, the air flow or the condensed water

drainage disturb the neighbours?

•

Is there any coolant leakage?

•

The electronic controller allows the compressor to start only three minutes after voltage has reached the system.

9 / 14

BETA series

Model:

BETA 12K WIFI

BETA-installation-manual-EN-

R1 27.07.2020

5. I

NFROMATION FOR THE INSTALLER

INVERTER TYPE

CAPACITY (Btu/ ) 9K/12K 22/24K

Lenght of pipe with standard charge

Maximum distance between indoor and

outdoor unit

15m 15m

Additional refrigerant charge 15g/m 25g/m

Max. Diff. In level between indoor and outdoor

unit 5m 5m

Type of refrigerant R32/R290 R32/R290

5.1. T

IGHTENING TORQUE FOR PROTECTION CAPS AND FLANGE CONNECTION

PIPE TIGHTENING TORQUE

[N x m]

CORRESPONDING STRESS

(using a 20cm wrenc ) TIGHTENING TORQUE

[N x m]

1/4"

(

φ 6)

15-20 Wirst strength Service port nut 7-9

3/8"

(

φ 9.52)

31-35 Arm strength Protection caps 25-30

1/2"

(

φ 12)

35-45 Arm strength

5/8"

(

φ 15.88)

75-80 Arm strength

10 / 14

BETA series

Model:

BETA 12K WIFI

BETA-installation-manual-EN-

R1 27.07.2020

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5.2. W

IRING DIAGRAM

For different models, the wiring diagram may be different. Please refer to the wiring diagrams pasted on the indoor unit and

outdoor unit respectively.

•

On idoor unit, the wiring diagram is pasted under the front panel.

•

On outdoor unit, the wiring diagram is pasted on the backside of the outdoor handle cover.

•

For some models the wires has been connected to the main PCB of indoor unit by manufacturer without terminal

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