Daikin FHQG71CVEB, FHQG100CVEB, FHQG125CVEB, FHQG140CVEB Installation manuals

INSTALLATION MANUAL

SPLIT SYSTEM Air Conditioners

MODELS

(Ceiling suspension type)

FHQG71CVEB FHQG100CVEB FHQG125CVEB FHQG140CVEB

READ THESE INSTRUCTIONS CAREFULLY BEFORE INSTALLATION. KEEP THIS MANUAL IN A HANDY PLACE FOR FUTURE REFERENCE.

FHQG71CVEB FHQG100CVEB FHQG125CVEB FHQG140CVEB

SPLIT SYSTEM Air Conditioner Installation manual

CONTENTS

1. SAFETY PRECAUTIONS .............................................................................................. 1

2. BEFORE INSTALLATION.............................................................................................. 3

3. SELECTING INSTALLATION SITE ............................................................................... 5

4. PREPARATIONS BEFORE INSTALLATION................................................................. 6

5. INDOOR UNIT INSTALLATION..................................................................................... 8

6. REFRIGERANT PIPING WORK .................................................................................... 9

7. DRAIN PIPING WORK................................................................................................. 13

8. ELECTRIC WIRING WORK......................................................................................... 15

9. WIRING EXAMPLE...................................................................................................... 19

10. ATTACHING THE SUCTION GRILLE AND THE DRESSING BOARDS..................... 22

11. FIELD SETTINGS ........................................................................................................22

12. TEST OPERATION...................................................................................................... 23

13. WIRING DIAGRAM ......................................................................................................27

1. SAFETY PRECAUTIONS

Please read these “SAFETY PRECAUTIONS” carefully before installing air conditioning equipment and be sure to install it correctly. After completing installation, conduct a trial operation to check for faults and explain to the customer how to operate the air conditioner and take care of it with the aid of the operation manual. Ask the customer to store the installation manual along with the operation manual for future reference. This air conditioner comes under the term “appliances not accesible to the general public”.

Meaning of WARNING and CAUTION notices.

WARNING ........Failure to follow these instructions properly may result in personal injury or loss of life.

CAUTION ..........Failure to observe these instructions properly may result in property damage or per-

sonal injury, which may be serious depending on the circumstances.

WARNING

• Ask your dealer or qualified personnel to carry out installation work.

Do not attempt to install the air conditioner yourself. Improper installation may result in water leakage, electric shocks or fire.

• Install the air conditioner in accordance with the instructions in this installation manual. Improper installation may result in water leakage, electric shocks or fire.

• Be sure to use only the specified accessories and parts for installation work. Failure to use the specified parts may result in the unit falling, water leakage, electric shocks or fire.

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• When installing the unit in a small room, take measures against to keep refrigerant concentration from exceeding allowable safety limits in the event of refrigerant leakage. Contact the place of purchase for more information. Excessive refrigerant in a closed ambient can lead to oxygen deficiency.

• Install the air conditioner on a foundation strong enough to withstand the weight of the unit. A foundation of insufficient strength may result in the equipment falling and causing injury.

• Carry out the specified installation work after taking into account strong winds, typhoons or earthquakes. Failure to do so during installation work may result in the unit falling and causing accidents.

• Make sure that a separate power supply circuit is provided for this unit and that all electrical work is carried out by qualified personnel according to local laws and regulations and this installation manual. An insufficient power supply capacity or improper electrical construction may lead to electric shocks or fire.

• Make sure that all wiring is secured, the specified wires are used, and that there is no strain on the terminal connections or wires. Improper connections or securing of wires may result in abnormal heat build-up or fire.

• When wiring the power supply and connecting the wiring between the indoor and outdoor units, position the wires so that the control box lid can be securely fastened. Improper positioning of the control box lid may result in electric shocks, fire or overheating terminals.

• If refrigerant gas leaks during installation, ventilate the area immediately. Toxic gas may be produced if the refrigerant comes into contact with fire.

• After completing installation, check for refrigerant gas leakage. Toxic gas may be produced if the refrigerant gas leaks into the room and comes into contact with a source of fire, such as a fan heater, stove or cooker.

• Be sure to switch off the unit before touching any electrical parts.

• Be sure to earth the air conditioner.

Do not earth the unit to a utility pipe, lightning conductor or telephone earth lead. Imperfect earthing may result in electric shocks or fire. A high surge current from lightning or other sources may cause damage to the air conditioner.

• Be sure to install an earth leakage breaker. Failure to install an earth leakage breaker may result in electric shocks or fire.

• Do not directly touch refrigerant that has leaked from refrigerant pipes or other areas, as there is a danger of frostbite.

CAUTION

• While following the instructions in this installation manual, install drain piping to ensure proper drainage and

insulate piping to prevent condensation. Improper drain piping may result in indoor water leakage and property damage.

• Install the indoor and outdoor units, power cord and connecting wires at least 1 meter away from televisions or radios to prevent picture interference and noise. (Depending on the incoming signal strength, a distance of 1 meter may not be sufficient to eliminate noise.)

• Remote controller (wireless kit) transmitting distance can be shorter than expected in rooms with electronic fluorescent lamps (inverter or rapid start types). Install the indoor unit as far away from fluorescent lamps as possible.

• Do not install the air conditioner in the following locations:

1. Where there is a high concentration of mineral oil spray or vapour (e.g. a kitchen).

Plastic parts will deteriorate, parts may fall off and water leakage could result.

2. Where corrosive gas, such as sulphurous acid gas, is produced.

Corroding of copper pipes or soldered parts may result in refrigerant leakage.

3. Near machinery emitting electromagnetic radiation.

Electromagnetic radiation may disturb the operation of the control system and result in a malfunction of the unit.

4. Where flammable gas may leak, where there is carbon fibre or ignitable dust suspensions in the air, or

where volatile flammables such as paint thinner or gasoline are handled. Operating the unit in such conditions may result in fire.

• The air conditioner is not intended for use in a potentially explosive atmosphere.

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2. BEFORE INSTALLATION

Do not exert pressure on the resin parts when opening the unit or when moving it after opening. Be sure to check the type of R410A refrigerant to be used before doing any work. (Using an incorrect refrigerant will prevent normal operation of the unit.)

• When moving the unit while removing it from the carton box, be sure to lift it by holding on to the four lifting

lugs without exerting any pressure on other parts, especially swing flap, the refrigerant piping, drain piping, and other resin parts.

• The accessories needed for installation must be retained in your custody until the installation work is completed. Do not discard them! After the indoor unit is delivered, protect the unit using packaging material until the installation so that it is not scratched.

• Decide upon a line of transport.

• Leave the unit inside its packaging while moving, until reaching the installation site. Where unpacking is

unavoidable, use a sling of soft material or protective plates together with a rope when lifting, to avoid damage or scratches to the unit.

• When selecting installation site, refer to the paper pattern.

• For the installation of an outdoor unit, refer to the installation manual attached to the outdoor unit.

• Do not use the unit in locations with high salt content in the air such as beachfront property, locations where

the voltage fluctuates such as factories, or in automobiles or marine vessels.

2-1 ACCESSORIES

Check the following accessories are included with your unit.

Do not dispose of any parts necessary for installation until the installation is completed.

Name 1) Drain hose 2) Metal clamp

Quan-

tity

Shape

Name

Quan-

tity

6)For gas pipe

Shape

7)For liquid pipe

1 pc. 1 pc. 8 pcs. 7 pcs. 1 pc.

Insulation for

fitting

1 each. 1 each. 1 pc. 2 pcs. 2 pcs.

Sealing pad 10) Bushing 11) Fixture

8) Large

9) Small

3) Washer for hanger bracket

4) Clamp

12) Screw thread (M4)

Paper pattern

5) for installation

(Other)

• Operation manual

• Installation manual

• Declaration of conformity

2-2 OPTIONAL ACCESSORIES

• The remote controller are required for this indoor unit “Table 1”.

• These are two types of remote controllers: wired and wireless. Select a remote controller from “Table 1”

according to customer request and install in an appropriate place.

Ta b l e 1

Wired type BRC1E51A7, BRC1D528

Wireless type BRC7G63

NOTE

• If you wish to use a remote controller that is not listed in “Table 1”, select a suitable remote controller after

consulting catalogs and technical materials.

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FOR THE FOLLOWING ITEMS, TAKE SPECIAL CARE DURING CONSTRUCTION AND CHECK AFTER INSTALLATION IS FINISHED.

a. Items to be checked after completion of work

Items to be checked If not properly done, what is likely to occur Check Are the indoor and outdoor unit fixed firmly? Is the installation unit and the outdoor unit

completed? Is the gas leak test finished? It may result in insufficient cooling. Is the unit fully insulated? Condensate water may drip. Does drainage flow smoothly? Condensate water may drip. Does the power supply voltage correspond

to that shown on the name plate?

Are wiring and piping correct?

Is the unit safely grounded? It may result in electric shock.

Is wiring size according to specifications?

Is something blocking the air outlet or inlet of either the indoor or outdoor units?

Are refrigerant piping length and additional refrigerant charge noted down?

The units may drop, vibrate or make noise. The unit may malfunction or the compo-

nents burn out.

The unit may malfunction or the components burn out.

It may result in insufficient cooling.

The refrigerant charge in the system is not clear.

b. Items to be checked at time of delivery

Also review the “SAFETY PRECAUTIONS”

∗

Items to be checked Check

Has the field setting done (as necessary)?

Did you attach the control box lid, air filter, and suction grille?

Does the cold air (warm air) blow properly during the cooling (heating) operation?

Did you explain about operations while showing the instruction manual to your customer?

Did you hand the instruction manual over to your customer?

c. Points for explanation about operations

The items with WARNING and CAUTION marks in the instruction manual are the items pertaining to possibilities for bodily injury and material damage in addition to the general usage of the product. Accordingly, it is necessary that you make a full explanation about the described contents and also ask your customers to read the instruction manual.

2-3 NOTE TO THE INSTALLER

Be sure to instruct customers how to properly operate the unit (especially cleaning filters, operating different functions, and adjusting the temperature) by having them carry out operations themselves while looking at the manual.

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3. SELECTING INSTALLATION SITE

(1) Select an installation site where the following conditions are fulfilled and that meets your cus-

tomer’s approval.

• Where optimum air distribution can be ensured.

• Where nothing blocks air passage.

• Where condensate can be properly drained.

• Where the ceiling is strong enough to bear the indoor unit weight.

(Due to the insufficient strength of the ceiling, the indoor unit may vibrate and come in contact with the ceiling, and this causes a buzzing noise.)

• Where the false ceiling is not noticeably on an incline.

• Where there is no risk of flammable gas leakage.

• Where sufficient clearance for maintenance and service can be ensured.

NOTE

section, opening it up 200 mm will make servicing easier.

• If there is space left over in the

∗

∗≥30 ∗≥30

Air discharge

Required service space

Obstruction

Air inlet

Floor

2500 or higher from the floor

≥300

For installation in high places

(Length : mm)

• Where piping between indoor and outdoor units is possible within the allowable limit. (Refer to the installation manual for the outdoor unit.)

CAUTION

• Install the indoor and outdoor units, power cord and connecting wires at least 1 meter away from televisions

or radios in order to prevent image interference or noise. (Depending on the radio waves, a distance of 1 meter may not be sufficient enough to eliminate the noise.)

• When the wireless kit is installed, the remote controller transmitting distance may be shorter than expected in rooms with electronic fluorescent lamps (inverter or rapid start types). Install the indoor unit as far away from fluorescent lamps as possible.

(2) Use suspension bolts for installation. Check whether the ceiling is strong enough to support the

weight of the unit or not. If there is a risk, reinforce the ceiling before installing the unit.

(Installation pitch is marked on the paper pattern for installation. Refer to it to check for points requiring reinforcing.)

(3) The maximum ceiling height for installation is 3.5 m for unit type 71 and 4.3 m for unit type 100, 125

and 140.

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4. PREPARATIONS BEFORE INSTALLATION

(1) Relation of holes for indoor unit, suspension bolt position, piping and wiring.

200

Front view

175

Left side piping hole

Rear wire lead-in hole

(Indoor unit)

B (Suspension bolt pitch)

210

False ceiling view

260

(Suspension

bolt pitch)

690 (Indoor unit)

Air outlet

Model A B C D E F G H J Type 71 1270 1230 533 479 425 530 553 532 415 Type 100, 125, 140 1590 1550 693 639 585 690 713 692 575

Rear side piping hole(φ100)

(Length : mm)

Top side drain piping hole

Top gas piping hole Top liquid piping hole

Suspension bolt (×4) Top wire lead-in hole

163

189

(2) Make holes for suspension bolts, refrigerant and drain piping, and wiring.

• Refer to the paper pattern for installation.

• Select the location for each of holes and open the holes in the ceiling.

(3) Remove the parts from the indoor unit. (3-1) Detach the suction grille.

• Slide the locking knobs (×3) on the suction grille inward (direction of arrows) and lift upwards. (Refer to Fig. 1)

• With the suction grille open, remove the suction grille forward, holding on to the rear tabs on the suction grille. (Refer to Fig. 2)

Fig. 1 Fig. 2

Locking knobs

Suction grille

Rear tabs

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(3-2) Remove the dressing boards (left and right).

• After removing the securing screws for the dressing boards (one each), pull them forward (in the direc- tion of the arrow) and remove them. (Refer to Fig. 3)

• Take out the accessories.

• Make a dowel hole on the wiring lead-in side on the rear-facing or upward-facing, and then install the

bushing (10) provided.

Fig. 3

Accessories

Dressing board securing screw (M4)

< How to remove dowel hole >

Bushing (10) (accessory)

Removable part (for leading in from the

upward-facing)

Removable part (for leading in from the

rear-facing)

Dressing board

Bushing (10) (accessory)

(3-3) Remove the hanger brackets.

• Loosen the 2 bolts (M8) used to attach the hanger brackets which are on each side (4 places left and right) to within 10 mm. (Refer to Fig. 4. 5)

• After removing the securing screws (M5) for the hanger brackets which are on the rear side, pull the hanger brackets back (in the direction of the arrow), and remove them. (Refer to Fig. 5)

Fig. 4 Fig. 5

Hanger bracket fixing screw (M5)

Length of loosening should be less than 10 mm

≤10

Indoor unit

Hanger bracket setting bolt (M8) (Loosen)

Hanger bracket

CAUTION

Do not remove the tape (translucent white) attached to the outside of the indoor unit. (Penetration of water may result in electrical shock or fire.)

(4) Attach the suspension bolts. (Use suspension bolts which are M8-M10 in size.)

• Adjust the distance of the suspension bolts from the ceiling in advance. (Refer to Fig. 6)

NOTE

• Use a hole-in anchor for existing ceilings, and a sunken insert, sunken anchor or other field supplied parts

for new ceilings to reinforce the ceiling to bear the weight of the unit. Adjust clearance from the ceiling before proceeding further.

Fig. 6

Ceiling slab

Anchor

25-55

False ceiling

Suspension bolt

(Length : mm)

All the above parts are field supplied.

CAUTION

If the suspension bolts are too long, the indoor unit or optional accessories may be damaged or break down.

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5. INDOOR UNIT INSTALLATION

It may be easier to attach accessory parts before installing the indoor unit. Therefore, please also read the instruction manuals which are provided with the accessory parts.

As for the parts to be used for installation work, be sure to use the provided accessories and specified parts designated by our company.

(1) Secure the hanger brackets to the suspension bolts. (Refer to Fig. 7)

NOTE

To ensure they are safely secured, use the included washers, and secure them with double nuts to make sure.

•

(2) Lift the indoor unit’s main body, insert the bolts (M8) for the hanger brackets into the attachment

part on the hanger brackets, while sliding the main body from the front. (Refer to Fig. 8)

(3) Replace the screws for the hanger brackets which had been removed (M5) securely in 2 places left

and right. This is necessary to prevent any forward and back slide in the main body of the indoor unit. (Refer to Fig. 8)

(4) Fasten the bolts for the hanger brackets (M8) securely in 4 places, left and right. (Refer to Fig. 8)

Attachment

Fig. 7

Fig. 8

Hanger bracket

part

Nut (Field supplied)

Washer (3) (accessory)

Double nuts (Field supplied)

Hanger bracket

Reinforcing plate (left/right) When carrying the unit, do

not hold the reinforcing plates.

(5) When hanging the indoor unit main body, be sure to use a level or a plastic tube with water in it to

make sure the drain piping is set either level or slightly tilted, in order to ensure proper drainage. (Refer to Fig. 9)

Fig. 9

≤ 1˚

A.B

Hanger bracket fixing screw (M5)

Hanger bracket setting bolt (M8)

≤ 1˚

A.When the drain piping is tilted to the right, or to the right and back.

Place it level, or tilt it slightly to the right or the back. (Within 1°.)

B.When the drain piping is tilted to the left, or to the left and back.

Place it level, or tilt it slightly to the left or the back. (Within 1°.)

CAUTION

Setting the unit at an angle opposite to the drain piping might cause a water leakage.

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