DAIKIN FXFQ09PVJU, FXFQ30PVJU, FXFQ12PVJU, FXFQ36PVJU, FXFQ18PVJU INSTALLATION MANUAL

INSTALLATION MANUAL

SYSTEM Inverter Heat Pump

MODELS

Ceiling mounted cassette type (Round flow model)

FXFQ09PVJU FXFQ30PVJU

FXFQ12PVJU FXFQ36PVJU

FXFQ18PVJU FXFQ48PVJU

FXFQ24PVJU

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

LIRE SOIGNEUSEMENT CES INSTRUCTIONS AVANT L’INSTALLATION. CONSERVER CE MANUEL A PORTEE DE MAIN POUR REFERENCE ULTERIEURE.

LEA CUIDADOSAMENTE ESTAS INSTRUCCIONES ANTES DE INSTALAR. GUARDE ESTE MANUAL EN UN LUGAR A MANO PARA LEER EN CASO DE TENER ALGUNA DUDA.

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VRV SYSTEM Inverter Heat Pump	Installation manual

	CONTENTS
1.	SAFETY CONSIDERATIONS........................................................................................	1
2.	BEFORE INSTALLATION..............................................................................................	3
3.	SELECTING INSTALLATION SITE ...............................................................................	6
4.	PREPARATIONS BEFORE INSTALLATION ................................................................	7
5.	INDOOR UNIT INSTALLATION.....................................................................................	9
6.	REFRIGERANT PIPING WORK ..................................................................................	10
7.	DRAIN PIPING WORK ................................................................................................	13
8.	ELECTRIC WIRING WORK.........................................................................................	16
9.	WIRING EXAMPLE AND HOW TO SET THE REMOTE CONTROLLER ...................	17
10.	INSTALLATION OF THE DECORATION PANEL...........................................................	24
11.	FIELD SETTING ..........................................................................................................	24
12.	TEST OPERATION......................................................................................................	26

1. SAFETY CONSIDERATIONS

Read these “SAFETY CONSIDERATIONS for Installation” carefully before installing air conditioning equipment. After completing the installation, make sure that the unit operates properly during the startup operation. Instruct the customer on how to operate and maintain the unit. Inform customers that they should store this Installation Manual with the Operation Manual for future reference.

Always use a licensed installer or contractor to install this product. Improper installation can result in water or refrigerant leakage, electrical shock, fire, or explosion.

Meanings of DANGER, WARNING, CAUTION, and NOTE Symbols:

DANGER ...........	Indicates an imminently hazardous situation which, if not avoided, will result in death
	or serious injury.
WARNING .........	Indicates a potentially hazardous situation which, if not avoided, could result in death
	or serious injury.
CAUTION ..........	Indicates a potentially hazardous situation which, if not avoided, may result in minor
	or moderate injury. It may also be used to alert against unsafe practices.
NOTE.................	Indicates situations that may result in equipment or property-damage accidents only.

DANGER

•Refrigerant gas is heavier than air and replaces oxygen. A massive leak can lead to oxygen depletion, especially in basements, and an asphyxiation hazard could occur leading to serious injury or death.

•Do not ground units to water pipes, gas pipes, telephone wires, or lightning rods as incomplete grounding can cause a severe shock hazard resulting in severe injury or death. Additionally, grounding to gas pipes could cause a gas leak and potential explosion causing severe injury or death.

•If refrigerant gas leaks during installation, ventilate the area immediately. Refrigerant gas may produce toxic gas if it comes in contact with fire. Exposure to this gas could cause severe injury or death.

•After completing the installation work, check that the refrigerant gas does not leak throughout the system.

•Do not install unit in an area where flammable materials are present due to risk of explosions that can cause serious injury or death.

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•Safely dispose all packing and transportation materials in accordance with federal/state/local laws or ordinances. Packing materials such as nails and other metal or wood parts, including plastic packing materials used for transportation may cause injuries or death by suffocation.

WARNING

•Only qualified personnel must carry out the installation work. Installation must be done in accordance with this installation manual. Improper installation may result in water leakage, electric shock, or fire.

•When installing the unit in a small room, take measures to keep the refrigerant concentration from exceeding allowable safety limits. Excessive refrigerant leaks, in the event of an accident in a closed ambient space, can lead to oxygen deficiency.

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

•Install the air conditioner on a foundation strong enough that it can withstand the weight of the unit. A foundation of insufficient strength may result in the unit falling and causing injuries.

•Take into account strong winds, typhoons, or earthquakes when installing. Improper installation 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, state, and national regulations. An insufficient power supply capacity or improper electrical construction may lead to electric shocks or fire.

•Make sure that all wiring is secured, that specified wires are used, and that no external forces act on the terminal connections or wires. Improper connections or installation may result in fire.

•When wiring, 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 the terminals overheating.

•Before touching electrical parts, turn off the unit.

•Be sure to install a ground fault circuit interrupter if one is not already available. This helps prevent electrical shocks or fire.

•Securely fasten the outside unit terminal cover (panel). If the terminal cover/panel is not installed properly, dust or water may enter the outside unit causing fire or electric shock.

•When installing or relocating the system, keep the refrigerant circuit free from substances other than the specified refrigerant (R410A) such as air. Any presence of air or other foreign substance in the refrigerant circuit can cause an abnormal pressure rise or rupture, resulting in injury.

•Do not change the setting of the protection devices. If the pressure switch, thermal switch, or other protection device is shorted and operated forcibly, or parts other than those specified by Daikin are used, fire or explosion may occur.

CAUTION

•Do not touch the switch with wet fingers. Touching a switch with wet fingers can cause electric shock.

•Do not allow children to play on or around the unit to prevent injury.

•Do not touch the refrigerant pipes during and immediately after operation as the refrigerant pipes may be hot or cold, depending on the condition of the refrigerant flowing through the refrigerant piping, compressor, and other refrigerant cycle parts. Your hands may suffer burns or frostbite if you touch the refrigerant pipes. To avoid injury, give the pipes time to return to normal temperature or, if you must touch them, be sure to wear proper gloves.

•Heat exchanger fins are sharp enough to cut.

To avoid injury wear glove or cover the fins when working around them.

•Install drain piping to proper drainage. Improper drain piping may result in water leakage and property damage.

•Insulate piping to prevent condensation.

•Be careful when transporting the product.

•Do not turn off the power immediately after stopping operation. Always wait for at least 5 minutes before turning off the power. Otherwise, water leakage may occur.

•Do not use a charging cylinder. Using a charging cylinder may cause the refrigerant to deteriorate.

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•Refrigerant R410A in the system must be kept clean, dry, and tight.

(a)Clean and Dry -- Foreign materials (including mineral oils such as SUNISO oil or moisture) should be prevented from getting into the system.

(b)Tight -- R410A does not contain any chlorine, does not destroy the ozone layer, and does not reduce the earth’s protection again harmful ultraviolet radiation. R410A can contribute to the greenhouse effect if it is released. Therefore take proper measures to check for the tightness of the refrigerant piping installation. Read the chapter Refrigerant Piping and follow the procedures.

•Since R410A is a blend, the required additional refrigerant must be charged in its liquid state. If the refrigerant is charged in a state of gas, its composition can change and the system will not work properly.

•The indoor unit is for R410A. See the catalog for indoor models that can be connected. Normal operation is not possible when connected to other units.

•Indoor units are for indoor installation only. Outdoor units can be installed either outdoors or indoors.

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

(a)Where a mineral oil mist or oil spray or vapor is produced, for example, in a kitchen. Plastic parts may deteriorate and fall off or result in water leakage.

(b)Where corrosive gas, such as sulfurous acid gas, is produced.

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

(c)Near machinery emitting electromagnetic waves.

Electromagnetic waves may disturb the operation of the control system and cause the unit to malfunction.

(d)Where flammable gas may leak, where there is carbon fiber, or ignitable dust suspension in the air, or where volatile flammables such as thinner or gasoline are handled. Operating the unit in such conditions can cause a fire.

•Take adequate measures to prevent the outside unit from being used as a shelter by small animals. Small animals making contact with electrical parts can cause malfunctions, smoke, or fire. Instruct the customer to keep the area around the unit clean.

NOTE

•Install the power supply and control wires for the indoor and outdoor units at least 3.5 feet away from televisions or radios to prevent image interference or noise. Depending on the radio waves, a distance of

3.5 feet may not be sufficient to eliminate the noise.

•Dismantling the unit, treatment of the refrigerant, oil and additional parts must be done in accordance with the relevant local, state, and national regulations.

•Do not use the following tools that are used with conventional refrigerants: gauge manifold, charge hose, gas leak detector, reverse flow check valve, refrigerant charge base, vacuum gauge, or refrigerant recovery equipment.

•If the conventional refrigerant and refrigerator oil are mixed in R410A, the refrigerant may deteriorate.

•This air conditioner is an appliance that should not be accessible to the general public.

•The wall thickness of field-installed pipes should be selected in accordance with the relevant local, state, and national regulations.

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 opening the unit or moving it after opening, be sure to lift it by holding on to the lifting lugs without exerting any pressure on other parts, especially, drain piping, and other resin parts.

•Decide upon a line of transport.

•Leave the unit inside its packaging while moving, until reaching the installation site. Use a sling of soft material, where unpacking is unavoidable or protective plates together with a rope when lifting, to avoid damage or scratches to the unit.

•Refer to the installation manual of the outdoor unit for items not described in this manual.

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

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1.PRECAUTIONS

•Be sure to read this manual before installing the indoor unit.

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

•This unit is suitable for installation in a household, commercial and light industrial environment.

•Do not install or operate the unit in rooms mentioned below.

•Laden with mineral oil, or filled with oil vapor or spray like in kitchens. (Plastic parts may deteriorate.)

•Where corrosive gas like sulfurous gas exists. (Copper tubing and brazed spots may corrode.)

•Where volatile flammable gas like thinner or gasoline is used.

•Where machines can generate electromagnetic waves. (Control system may malfunction.)

•Where the air contains high levels of salt such as that near the ocean and where voltage fluctuates greatly such as that in factories. Also in vehicles or vessels.

2.ACCESSORIES

Check the following accessories are included with your unit.

	Name	(1) Drain hose	(2) Metal clamp	(3) Washer for	(4) Clamp	(5) Paper pattern
				hanger bracket		for installation
	Quantity	1 pc.	1 pc.	8 pcs.	6 pcs.	1 pc.
						Also used as
	Shape					packing material

Name	(6) Screw (M4)	(7) Washer	Insulation for		Sealing pad
		fixing plate	fitting
Quantity	4 pcs.	4 pcs.	1 each	1 each	1 pc.	1 pc.
				(10) Large
	For paper		(8) for gas		(13) Small
	pattern for
			pipe
	installation					(14)
				(11) Medium-1
Shape
			(9) for liquid
			pipe
				(12) Medium-2

Name	Installation guide	Insulation tube	Conduit mounting
			plate
Quantity	1 pc.	1 pc.	1 each	(Other)
			(17)	• Installation manual
	(15)	(16)
Shape				• Operation manual
			(18)

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3. OPTIONAL ACCESSORIES

•The optional decoration panel and remote controller are required for this indoor unit. (Refer to Table 1, 2) (However, the remote controller is not required for the slave unit of a simultaneous operation system.)

Table 1

Unit model

Optional decoration panel

BYCP125K-W1

FXFQ09 · 12 · 18 · 24 · 30 · 36 · 48PVJU

Color : Fresh white

•These are two types of remote controllers: wired and wireless. Select a remote controller from Table 2 according to customer request and install in an appropriate place.

Table 2

	Remote controller
Wired type		BRC1E71/BRC1D71
Wireless type		BRC7F812

NOTE

•If you wish to use a remote controller that is not listed in “Table 2” on page 5, select a suitable remote controller after consulting catalogs and technical materials.

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

1. 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 unit and outdoor unit fixed firmly?	The unit may drop, vibrate or make noise.
Is the outdoor unit fully installed?	The unit may malfunction or the compo-
	nents burn out.
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	The unit may malfunction or the compo-
to that shown on the name plate?	nents burn out.
Are wiring and piping correct?	The unit may malfunction or the compo-
	nents burn out.
Is the unit safely grounded?	It may result in electric shock.
Is wiring size according to specifications?	The unit may malfunction or the compo-
	nents burn out.
Is something blocking the air outlet or inlet	It may result in insufficient cooling.
of either the indoor or outdoor units?
Are refrigerant piping length and additional	The refrigerant charge in the system is not
refrigerant charge noted down?	clear.
2. Items to be checked at time of delivery
* Also review the “1. SAFETY CONSIDERATIONS”
Items to be checked		Check
Are the control box lid, air filter, suction grille attached?
Did you explain about operations while showing the operation manual to your customer?
Did you hand the operation manual over to your customer?

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Points for explanation about operations

The items with WARNING and CAUTION marks in the operation 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 operation manual.

4. 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.

3. SELECTING INSTALLATION SITE

Hold the unit by the 4 lifting lugs when opening the box and moving it, and do not exert pressure on to any other part piping (refrigerant, drain, etc.) or plastic parts.

If the temperature or humidity inside the ceiling might rise above 86°F or RH 80%, respectively, use the highhumidity kit (sold separately) or add extra insulation to the main unit body.

Use glass wool or polyethylene foam as insulation and make sure it is at least 3/8in. thick and fits inside the ceiling opening.

The direction this product blows can be selected. However, a separately sold shut-off material kit is needed in order to make the unit blow in two, three, or four (corner shut-off) directions.

(1)Select an installation location with the customer’s approval which matches the following conditions.

•A location from which cool (warm) air will reach the whole room.

•A location with no objects blocking the air passage.

•A location where drainage can be done with no problem.

•A location strong enough to support the weight of the indoor unit.

•Locations where the wall is not significantly tilted.

•A location which leaves enough room for installation and service work.

•A location where there is no risk of flammable gas leaking.

•A location where the length of the indoor-outdoor piping is no longer than the tolerated length (see the installation manual that came with the outdoor unit for details).

		[Space required for installation]			(Unit: in.)
				*≥60	*≥60
			H
	Air	Air	Air
	discharge		discharge
At least 70in.		inlet
from the floor.	≥60		≥60
	Floor surface			*≥60	*≥60
		Fig. 1			Fig. 2
Model			H (in.)
FXFQ09 · 12 · 18 · 24 · 30PVJU			10
FXFQ36 · 48PVJU			11-3/4

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CAUTION

•The indoor and outdoor units and the power supply wiring and remote controller cord must be installed at least 40in. away from any televisions or radios. This is to prevent interference with picture and sound reception. (Interference may occur even at 40in. away depending on the reception quality.)

•If installing the wireless kit, the distance of the signal sent from the remote controller might be shorter if there are fluorescent lights which are electrically started (such as with inverters, rapid starters, etc.) in the room. The indoor unit should be installed as far away from fluorescent lights as possible.

(2)Ceiling height

This product can be installed in ceilings up to 11-1/2ft. high (13-3/4ft. high for the 36 and 48).

If the ceiling height is 8-3/4ft. (10-1/2ft. for the 36 and 48) or more, field settings will have to be made with the remote controller. See “11. FIELD SETTING” for details.

(3)Air direction

The air direction shown in Fig. 3 is an example.

Select the appropriate number of directions according to the shape of the room and the location of the unit. (Field settings have to be made using the remote controller and the outlet vents have to be shut off if two, three, or four (corner shut-off) directions are selected. See the shut-off materials (sold separately) installation manual for details.)

(4)Use suspension bolts for installation. Check if the location for the installation is strong enough to support the weight of the unit, reinforce it if necessary, and install using suspension bolts. (The spacing of the installation is shown on the “paper pattern for installation (5)”.)

[Air direction]

Pipes

Pipes

Pipes

Pipes

All-round air Four air direction Three air direction Two air direction

Fig. 3

4. PREPARATIONS BEFORE INSTALLATION

(1) Relation of ceiling opening to unit and suspension bolt position.

37-3/8 (Decoration panel)

33-7/8 – 35-7/8 (Ceiling opening)

33-1/16 (Indoor unit) 30-3/4 (Suspension bolt pitch)

Refrigerant	(Unit: in.)
piping

		Hanger
Suspension		bracket
bolt (×4)	False
	ceiling
28(Suspension bolt pitch)		1/8
33-1/16 (Indoor unit)	View as seen from A	– 5-
33-7/8 – 35-7/8 (Ceiling opening)	Fig. 5	15/16-
37-3/8 (Decoration panel)		4
A

Fig. 4

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Installation is possible when ceiling opening dimensions is as follows

• When installing the unit within the frame for fixing false ceiling.

33-1/16

35-7/8

(Dimension inside frame)

Frame

False ceiling

33-7/8					(Unit: in.)
(Opening dimension inside
the flame for ceiling)

	≥13/16	33-7/8 – *35-7/8	≥13/16
	33-1/16	(Ceiling opening dimension)	(Ceiling-panel
	35-7/8

	(Dimension inside frame)	overlapping dimension)
		Fig. 7
	Fig. 6

NOTE

•Installation is possible with a ceiling dimension of 35-7/8in. (marked with *). However, to achieve a ceilingpanel overlapping dimension of 13/16in., the spacing between the ceiling and the unit should be 1-3/8in. or

less. If the spacing between ceiling and the unit is over 1-3/8in., attach ceiling material to part or recover the ceiling.

(Unit: in.)

Ceiling material

≥ 1-3/8

≥ 1-3/8

Fig. 8

(2)Make the ceiling opening needed for installation where applicable. (For existing ceilings)

•Refer to the paper pattern for installation (5) for ceiling opening dimensions.

•Create the ceiling opening required for installation. From the side of the opening to the casing outlet, implement the refrigerant and drain piping and wiring for remote controller (unnecessary for wireless type) and indoor-outdoor unit casing outlet. Refer to “6. REFRIGERANT PIPING WORK”, “7. DRAIN PIPING WORK” and “8. ELECTRIC WIRING WORK”.

•After making an opening in the ceiling, it may be necessary to reinforce ceiling beams to keep the ceiling level and to prevent it from vibrating. Consult the builder for details.

(3)Install the suspension bolts.

(Use either a M8~M10 size bolt or the equivalent) 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 (2-4in.) from the ceiling before proceeding further.

NOTE

• All the above parts are field supplied.

<installation example>

(Unit: in.)

Ceiling slab

Anchor

2-4

Long nut or turn-buckle

Suspension bolt

False ceiling

Fig. 9

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