Daikin FWC02AAFNMV1, FWC03AAFNMV1, FWC04AAFNMV1, FWC05AAFNMV1, FWC06AAFNMV1 Installation manuals

INSTALLATION
MANUAL

Models
FWC02AAFNMV1
FWC03AAFNMV1
FWC04AAFNMV1

Installation manual

Chilled Water Fan Coil Units

English

FWC05AAFNMV1
FWC06AAFNMV1

OUTLINE AND DIMENSIONS

Indoor Unit: FWC02AAFNMV1 / FWC03AAFNMV1 / FWC04AAFNMV1 / FWC05AAFNMV1 /
FWC06AAFNMV1

English

B

A

C

D

E

F
H

G

J

I

K

All dimensions are in (mm)

Model A B C D E F G H I J K

FWC02AAFNMV1 820 820 363 335 28 930 930 642 622 555 555
FWC03AAFNMV1 820 820 363 335 28 930 930 642 622 555 555
FWC04AAFNMV1 820 820 363 335 28 930 930 642 622 555 555
FWC05AAFNMV1 820 820 363 335 28 930 930 642 622 555 555
FWC06AAFNMV1 820 820 363 335 28 930 930 642 622 555 555

ACCESS VALVE 2

WATER INLET 2

ACCESS VALVE 1

WATER OUTLET 2

WATER INLET 1

WATER OUTLET 1

Note:

• Water Inlet 1* must couple with Water Outlet 1 and Access Valve 1. (*1 connection to chiller)

• Water Inlet 2* must couple with Water Outlet 2 and Access Valve 2. (*2 connection to Boiler)

• Valve cap of Access Valve 1 is painted red for indentification.

• All union joints are to be screwed in together with an “O” -ring. Apply Teflon white tape on the screw threads to ensure

leak proof joints.

• Secure all screw connection tightly to prevent leakage.

1

SAFETY PRECAUTIONS

! WARNING

• Installation and maintenance should be performed by
qualified persons who are familiar with local code and
regulation, and experienced with this type of appliance.

• All field wiring must be installed in accordance with the
national wiring regulation.

• Ensure that the rated voltage of the unit corresponds to
that of the name plate before commencing wiring work
according to the wiring diagram.

• The unit must be GROUNDED to prevent possible hazard
due to insulation failure.

• All electrical wiring must not touch the water piping or
any moving parts of the fan motors.

• Confirm that the unit has been switched OFF before
installing or servicing the unit.

• Risk of electric shock, can cause injury or death.
Disconnect all remain electric power supplies before
servicing.

• DO NOT pull out the power cord when the power is ON.
This may cause serious electrical shocks which may result
in the fire hazards.

• Keep the indoor and outdoor units, power cable and
transmission wiring, at least 1m from TVs and radios, to
prevent distorted pictures and static. {Depending on the
type and source of the electrical waves, static may be heard
even when more than 1m away}.

! CAUTION

Please take note of the following important points when
installing.

• Ensure that te drainage piping is connected properly.

If the drainage piping is not connected properly, it may
cause water leakage which will dampen the furniture.

• Ensure that the unit’s panel is closed after service or
installation.

Unsecured panels will cause the unit to operate noisily.

• Air swing connector and LED wire connector shall be
inside the control box.

• Sharp edges and coil surfaces are potential locations which
may cause injury hazards. Avoid from being in contact
with these places.

• Before turning off the power supply set the remote
controller’s ON/OFF switch to the “OFF” position to
prevent the nuisance tripping of the unit. If this is not done,

the unit’s fans will start turning automatically when power
resumes, posing a hazard to service personnel or the user.

• Do not operate any heating apparatus too close to the air
conditioner unit. This may cause the plastic panel to melt or

deform as a result of the excessive heat.

• Ensure the color of wires of the outdoor unit and the
terminal markings are same to the indoors respectively.
IMPORTANT : DO NOT INSTALL OR USE THE AIR

•
CONDITIONER UNIT IN A LAUNDRY ROOM.

NOTICE

Disposal requirements

Your air conditioning product is marked with this symbol. This means that electrical and electronic products shall not
be mixed with unsorted household waste.

Do not try to dismantle the system yourself: the dismantling of the air conditioning system, treatment of the refrigerant,
of oil and of other parts must be done by a qualified installer in accordance with relevant local and national legislation.

Air conditioners must be treated at a specialized treatment facility for re-use, recycling and recovery. By ensuring this
product is disposed of correctly, you will help to prevent potential negative consequences for the environment and
human health. Please contact the installer or local authority for more information.

Batteries must be removed from the remote controller and disposed of separately in accordance with relevant local
and national legislation.

2

1. Preliminary Site Survey

INSTALLATION OF THE INDOOR UNIT

Beam

Max. 0.3 m

Min. 1.0 m

Obstacle

Min. 0.5 m Min. 0.5 m Min. 0.5 m

Min 2.5m ~ Max 3.0m

Floor

• Electrical supply and installation is to conform to local authority’s (e.g. National Electrical Board) codes and regulations.

• Voltage supply fluctuation must not exceed ±10% of rated voltage. Electricity supply lines must be independent of welding
transformers which can cause high supply fluctuation.

• Ensure that the location is convenient for wiring, piping and drainage.

• The indoor unit must be installed in such that is free from any obstacles in path of cool air discharge and warm air return, and must
allow spreading of air throughout the room (near the center of the room)

• Provide clearance for the indoor unit from the wall and obstacles as shown in the figure.

• The installation place must be strong enough to support a load 4 times the indoor unit weight to avoid amplifying noise and
vibration.

• The installation place (hanging ceiling surface) must be levelled and the height in the ceiling is 350mm or more.

• The indoor unit must be away from heat and steam sources (avoid installing it near an entrance).

2. Unit Installation

Measure and mark the position for the hanging rod. Drill the hole for the

•
angle nut on the ceiling and fix the hanging rod.

890.0 mm (Ceiling Board Opening)

790.0 mm (Hanging Rod)

• The installation template is extended according to temperature and
humidity. Check on dimensions in use.

• The dimensions of the installation template are the same as those of the
ceiling opening dimensions.

• Before ceiling laminating work is completed, be sure to fit the installation
template to the indoor unit.

Note: Be sure to discuss the ceiling drilling work with the installers

concerned.

620.5 mm (Hanging Rod)

890.0 mm (Ceiling Board Opening)

English

3. Unit Hanging

Confirm the pitch of the hanging rod.

•

• Hold the unit and hang it on the hanging rod with the nut and washer.

• Adjust the unit height to 35.0mm between the indoor unit bottom surface
and the ceiling surface.

• Confirm with a level gauge that the unit is installed horizontally and
tighten the nut and bolt to prevent unit failing and vibration.

• Open the ceiling board along the outer edge of the paper installation
template.

4. Drain Pump Work

Drain pipe must be in downward gradient for smooth drainage.

•

• Avoid installing the drain pipe in up and down slope to prevent reversed
water flow.

• During the drain pipe connection, be careful not to exert extra force on
the drain connector at indoor unit.

• The outside diameter of the drain connection at the flexible drain hose
is 20mm.

• Be sure to execute heat insulation (polyethylene foam with thickness
more than 8.0mm) on the drain piping to avoid the condensed water
dripping inside the room.

Indoor Unit

Pipe Clamp

Good

Indoor Unit

Ceiling

Board

35.0 mm

Bad

3