Midea MCA-24HRN2MCA-24CRN2 Bedienungsanleitung

CASSETTE TYPE

Thank you very much for purchasing our air conditioner, please read this owner's

manual carefully before using your air conditioner.

INSTALLATION MANUAL

AIR CONDITIONER

MODEL:

MCA-24HRN2

MCA-24CRN2

MCA-36HRN2

MCA-36CRN2

MCA-42HRN2

MCA-42CRN2

MCA-48HRN2

MCA-48CRN2

CONTENTS PAGE

1. PRECAUTIONS................................................................................................1

2. INSTALLATION INFORMATION.. ...2

3. ATTACHED FITTINGS.... ....3

4. INSTALLATION PLACE.. ...4

5. INDOOR UNIT INSTALLATION.. ....5

6. OUTDOOR UNIT INSTALLATION.. .9

7. INSTALL THE CONNECTING PIPE.. .10

8. CONNECT THE DRAIN PIPE. .....14

9. WIRING.... .16

10. TEST OPERATION..... ....20

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PRECAUTIONS

SAFETY CONSIDERATIONS

Installation and servicing of air conditioning equipment can be hazardous due to system pressure and

electric components. Only trained and qualified service personnel should install, repair or service air

conditioning equipment.

All other operations should be performed by trained service personnel. When working on air conditio-

ning equipment, observe precautions in the literature, tags and labels attached to the unit and other

safety precautions that may apply. Follow all safety codes. Wear glasses and work gloves. Use quen-

ching cloth for brazing and unbrazing operations. There are fire extinguishers available for all brazing

operations.

WARNING

This manual describes the installation of specified indoor and outdoor units. Do not install them conn-

ected with any other indoor or outdoor unit .Mismatching of units and incompatibility between control

devices in the two units could lead to damage of both units .

Before performing service or maintenance operations on system, turn off main power switch of the unit.

Electrical shock could cause personal injury.

This unit shall be installed in accordance with national wiring regulations.

If the supply cord is damaged, it must be replaced by the manufacturer or its service agent or similarly

qualified person in order to avoid a hazard.

The means for disconnection from the supply having a contact separation of at least 3 mm in all poles.

CAUTION

1. Wire the outdoor unit, then wire the indoor unit. You are not allow to connect the air conditioner with

the power source until wiring and piping the air conditioner is done.

2. For installation of the indoor unit, outdoor unit, and connection piping in between, follow the instru-

ctions given in this manual as strictly as possible.

3. Installation in the following places may cause trouble. If it is unavoidable using in such places,

please consult with the dealer.

(1) A place full of machine oil.

(2) A saline place such as coast.

(3) Hot-spring resort.

(4) A place full of sulfide gas.

(5) A place where there are high frequency machines such as wireless installation, welding machine,

medical facilities.

(6) A place of special environmental conditions.

4. Don't install this unit in the laundry.

Remark per EMC Directive 89/336/EEC

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

installation conditions do apply.

1. 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 32 A

fusing point.

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

3. For detailed installation acceptance please refer to your contract with the power supplier, if restric-

tions do apply for products like washing machines, air conditioners or electrical ovens.

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

5. For any question contact your local dealer.

NOTE

INSTALLATION INFORMATION

1. Select the location;

2. Install the indoor unit;

3. Install the outdoor unit;

4. Install the connecting pipe ;

5. Connect the drain pipe;

6. Wiring;

7. Test operation.

To install properly, please read this "installation 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.

Regret for no further announcement if there is any change of this manual caused by product

improvement.

CAUTIONS FOR THE REMOTE CONTROLLER OPERATION

Please do not throw the remote controller or beat it.

Please use the remote controller within the allowed distance, and keep the transmitter toward the

receiver of the indoor unit.

Please keep the remote controller more than 1m away from TV or stereo set.

Never put the remote controller at the place with humid or direct sunlight, or near heaters.

Please insert the batteries properly.

INSTALLATION ORDER

Please check whether the following fittings are of full scope. If there are some attached fittings free

from use, please restore them carefully.

Installation Fittings Tubing & Fittings

1. Expansible hook..........................................4

2. Installation hook..........................................4

3. Installation paper board...............................1

4. Bolt M5 16 or M6 12.............................4

ATTACHED FITTINGS

5. Connecting pipe group...............................1

7. Soundproof / insulation sheath...................2

6. Binding tape................................................6

8. Out-let pipe sheath.......................................1

9. Out-let pipe clasp.........................................1

10. Tightening band.......................................20

11. Drain elbow.................................................1

12. Seal ring.....................................................1

13. Wall conduit..............................................1

14. Wall conduit cover....................................1

Power/Signal Wiring Group

15. Power wiring of the indoor unit.................1

16. Weak electrical wiring between

the indoor and outdoor units....................1

Drainpipe Fittings Protect Pipe Fittings

Remote controller & Its Frame

Others

21. Owner's manual.......................................1

22. Installation manual...................................1

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

18. Frame........................................................1

19. Mounting screw(ST2.9 10-C-H) .............2

20. Alkaline dry batteries (AM4)......................2

Liquid-side

tubing

MCA-42(36,48)CRN2

MCA-42(36,48)HRN2

gas-side

tubing

f9.53mm f12.7mm

f16mm f19mm

MCA-24CRN2

MCA-24HRN2

INSTALLATION PLACE

There is enough room for installation and maintenance.

The air outlet and the air inlet are not impeded, and can not be reached by strong wind.

It must be a dry and well ventilating place.

The support is flat and horizontal and can stand the weight of the outdoor unit. And will no additional

noise or vibration.

Your neighborhood will not feel uncomfortable with the noise or expelled air.

There is no leakage of combustible air.

It is easy to install the connecting pipe or cables.

Determine the air outlet direction where the discharged air is not blocked.

A place free of a leakage of combustible gases.

In the case that the installation place is exposed to a strong wind such as a seaside or high position,

secure the normal fan operation by putting the unit lengthwise along the wall or using a duct or shield

plates.

If possible, do not install the unit where it is exposed to direct sunlight.

If necessary, install a blind that does not interfere with the air flow.

During the heating mode, the water drained off the outdoor unit ,The condensate should be well dr-

ained away by the drain hole to an appropriate place, so as not to interfere other people or public.

Select the position where it will not be subject to snow drifts, accumulation of leaves or other seasonal

debris. It is important that the air flow for the outdoor unit is not impeded as this will result in reduction

in heating or cooling performance.

CAUTIONS

Location in the following places may cause malfunction of the machine.(If unavoidable, please consult

your local dealer)

a. There is petrolatum existing.

b. There is salty air surrounding (near the coast).

c. There is caustic gas (the sulfide, for example) existing in the air (near a hot spring).

d. The Volt vibrates violently (in the factories).

e. In buses or cabinets.

f. In kitchen where it is full of oil gas.

g. There is strong electromagnetic wave existing.

h. There are inflammable materials or gas.

i. There is acid or alkaline liquid evaporating.

j. Other special conditions.

NOTICES BEFORE INSTALLATION

1. Select the correct carry-in path.

2. Move this unit as originally packaged as possible.

3. If the air conditioner is installed on a metal part of the building, it must be electrically insulated acc-

ording to the relevant standards to electrical appliances.

1. The indoor unit

There is enough room for installation and maintenance.

The ceiling is horizontal, and its structure can endure the weight of the indoor unit.

The air outlet and the air inlet are not impeded, and the influence of external air is the least.

The air flow can reach throughout the room.

The connecting pipe and drainpipe could be extracted out easily.

There is no direct radiation from heaters.

2. The outdoor unit

INDOOR UNIT INSTALLATION

>1000mm

Chart 2

Drain side Tubing side

(Unit: mm)

680(Hook-location)

780(Hook-location)

840(Body)

880(Ceiling hole)

950(Panel)

1. Install the main body

A. The existing ceiling (to be horizontal)

a. Please cut a quadrangular hole of 880 880mm in the ceiling according to the shape of the installation

paper board. (Refer to Chart3, 4)

The center of the hole should be at the same position of that of the air conditioner body.

Determine the lengths and outlets of the connecting pipe, drainpipe and cables.

To balance the ceiling and to avoid vibration, please enforce the ceiling when necessary.

b. Please select the position of installation hooks according to the hook holes on the installation board.

Drill four holes of f12mm, 45~50mm deep at the selected positions on the ceiling. Then embed the

expansible hooks (fittings).

Face the concave side of the installation hooks toward the expansible hooks. Determine the length

of the installation hooks from the height of ceiling, then cut off the unnecessary part.

If the ceiling is extremely high, please determine the length of the installation hook according to facts.

Necessary room

>2500mm

outlet intlet outlet

ground

Chart 1

Note:

MCA-24CRN2 MCA-24HRN2

MCA-42(36,48)CRN2

MCA-42(36,48)HRN2

Chart 3

A 330mm

Series A 260mm

Series

The length could be calculated from Chart5

Chart5: Length=H-181+L (in general, L=100mm and is half of the whole length of the installation hook)

c. Please adjust the hexangular nuts on the four installation hooks evenly, to ensure the balance of the

body.

If the drainpipe is awry, leakage will be caused by the malfunction of the water-level switch.

Adjust the position to ensure the gaps between the body and the four sides of ceiling are even. The

body's lower part should sink into the ceiling for 10~12 mm (Refer to chart 5).

Locate the air conditioner firmly by wrenching the nuts after having adjusted the body's position well.

Nut

Body

Ceiling 880mm

Hook

Panel

Chart 4

Note: Series B=240mm

Series B=310mm

MCA-24CRN2, MCA-24HRN2

MCA-42(36,48)CRN2, MCA-42(36,48)HRN2

Body

Chart 5

H (Ceiling height)

Ceiling

10-12mm

136mm

34mm

Chart 6

Bolt

Chart 7

Central hole

Bolt M6X12 Installation paper board

B. New built houses and ceilings

a. In the case of new built house, the hook can be embedded in advance (refer to the A.B mentioned

above). But it should be strong enough to bear the indoor unit and will not become loose because

of concrete shrinking.

b. After installing the body, please fasten the installation paper board onto the air conditioner with

bolts(M6 12) to determine in advance the sizes and positions of the hole opening on ceiling.

Please first guarantee the flatness and horizontal of ceiling when installing it.

Refer to the A.a mentioned above for others.

c. Refer to the A.c mentioned above for installation.

d. Remove the installation paper board.

2. Install The Panel

CAUTIONS

After completion of installing the body, the four bolts(M6 12)must be fastened to the air

conditioner to ensure the body is grounded well.

Never put the panel face down on floor or against the wall, or on bulgy objects.

Never crash or strike it.

(1) Remove the inlet grid.

a. Slide two grid switches toward the middle at the same time, and then pull them up. (Refer to chart 8)

b. Draw the grid up to an angle of about 45 , and remove it. (Refer to chart 9)

Grid switch

Chart 8

Chart 9 Chart 10

(2) Remove the installation covers at the four corners.

Wrench off the bolts, loose the rope of the installation covers, and remove them. (Refer to chart 10)

(3) Install the panel

a. Align the swing motor on the panel to the tubing joints of the body properly. ( Refer to chart 11)

b. Fix hooks of the panel at swing motor and its opposite sides to the hooks of corresponding water

receiver. ( Refer to chart 11 ) Then hang the other two panel hooks onto corresponding hangers of

the body. ( Refer to chart 11 )

CAUTIONS Do not coil the wiring of the swing motor into the seal sponge.

Chart 14

Loosen upper nut

Adjust lower nut

Gap not allowed

Chart 13

Leakage

Ceiling

Pollution Water condensation

Cross-screwdriver

Outlet joint

Tubing joint Hook panel

Swing Motor

Hook-boit

Water- receiver

Chart 11

panel sponge

Chart 12

body

Ceiling

panel

panel foam1 air out

tan panel foam 2

4-6mm

outlet foam

c. Adjust the four panel hook screws to keep the panel horizontal, and screw them up to the ceiling

evenly. ( Refer to chart 11 )

d. Regulate the panel in the direction of the arrow in Chart11 slightly to fit the panel's center to the

center of the ceiling's opening. Guarantee that hooks of four corners are fixed well.

e. Keep fastening the screws under the panel hooks, until the thickness of the sponge between the

body and the panel's outlet has been reduced to about 4~6mm. The edge of the panel should

contact with the ceiling well. (Refer to chart 12)

Malfunction described in Chart13 can be caused by inappropriate tightness the screw.

If the gap between the panel and ceiling still exists after fastening the screws, the height of the

indoor unit should be modified again. ( Refer to chart 14-left)

You can modify the height of the indoor unit through the openings on the panel's four corners, if the

lift of the indoor unit and the drainpipe is not influenced (refer to chart 14-right).

(4) Hang the air-in grid to the panel, then connect the lead terminator of the swing motor and that of

the control box with corresponding terminators on the body respectively.

(5) Relocate the air-in grid in the procedure of reversed order.

(6) Relocate the installation cover.

a. Fasten the rope of installation cover on the bolt of the installation cover. (Refer to chart 15-left)

b. Press the installation cover into the panel slightly. (Refer to chart 15-right)

Chart 15

Installation cover s rope

Tap Screw Slide the four sliders

in the corresponding

channel when installing

the cover

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