Daikin FWF02AATNMV1 User manual

INSTALLATION
MANUAL
Models
FWF02AATNMV1
FWF03AATNMV1
FWF04AATNMV1
English
Installation Manual
Chilled Water Fan Coil Units

1
English
SAFETY PRECAUTIONS
!CAUTION
Please take note of the following important points when
installing.
• Ensure that 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.
!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}.
570
570
250
640
408
640
408
364
364
75
98
Indoor Unit: FWF02AAYNMV1 / FWF03AATNMV1 / FWF04AATNMV1
All dimensions are in mm/ (in)
SEE DETAIL A
WATER INLET
WATER OUTLET
OUTLINE AND DIMENSIONS
DETAIL A

2
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 refriger-
ant, 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. 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.
• The installation template is extended according to tempera-
ture 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 in-
stallers concerned.
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 35.0 mm between the indoor unit
bottom surface and the ceiling surface.
• Confirm with a level gauge that the unit is installed horizon-
tally 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.
Indoor Unit
Ceiling
Board
35.0 mm
35.0 mm
Indoor Unit
Ceiling
Board
580.0 ~ 610.0 mm (Ceiling
Board Opening)
15.0 538.0
529.0 19.0
18.0
580.0 ~ 610.0 mm (Ceiling Board Opening)
32.0
38.0
505.0
448.0
88.0
INSTALLATION OF THE INDOOR UNIT
• 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 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).
1. Preliminary Site Survey
Max. 0.3 m
Min. 0.5 m
Min. 0.5 m Min. 0.5 m
Min. 1.0 m
Max. 3.0 m
Floor
Obstacle
Beam
Obstacle
Min. 1.0 m
Min. 2.5m ~ Max 3.0m
Floor
Min. 0.5 m Min. 0.5 m Min. 0.5 m
Max. 0.3 m
Beam

3
English
Main Drain Pipe
Feed Water
Flexible Drain Hose
5. Drain Test • Connect the main drain pipe to the flexible drain.
• Feed water from flexible drain hose to check the piping for leak-
age.
• When the test is completed, connect the flexible drain hose to the
drain connector on the indoor unit.
Note: This Indoor Unit uses a drain pump for condensed water
drainage. Install the unit horizontally to prevent water leak-
age or condensation around the air outlet.
• Drain pipe must be in downward gradient for smooth drain-
age.
• Avoid installing the drain pipe in up and down slope to pre-
vent 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.
4. Drain Pump Work
Indoor Unit
Pipe Clamp
Good Bad
6. Water Piping Connection
• The indoor unit is equipped with water outlet and inlet connection. There is an air-vent that is fitted along with the connection
for air purging.
• 3 ways valve is required for cycling off or bypass the chilled water.
• Black steel pipe, polyethrene pipe and copper tube are recommended in the field installation. All types of piping and connec-
tion must be insulated with polyethrene (ARMAFLEX type or equivalent) to avoid condensation.
• Do not used contaminated or damaged pipe and fitting for installation.
• Some main fitting components are needed in the system to enhance the capacity and ease the service, such as gate valve,
balancing valve, 2 ways or 3 ways valve, filter, strainer and etc.
7. Panel Installation
• Be sure to remove the installation template before installing the
front panel.
• Open the air intake grille by pulling back the catchers and re-
moving it together with filter from panel.
• Install the front frame panel onto the indoor unit by 4 screws and
tighten it completely to prevent cool air leakage.
• Connect the LED wire and air swing wire to the indoor unit.
Note: Install the front panel firmly to prevent cool air leakage which
will cause condensation and water dripping.
OPEN
Screw
From
Front
Panel
LED Wire
Air Swing Wire
From
Control
Box
Gate Valve Gate Valve
Gate ValveGate Valve
Gate Valve
Gate Valve
FCU
FCUFCU
3 Way Valve 2 Way Valve
Good Control Bad Control Worst Control
Chiller

4
ELECTRICAL WIRING CONNECTION
This is proposed wiring connection. It may change subject to the chiller unit and must comply with the local and national code and
regulations.
Model: FWF02AATNMV1 / FWF03AATNMV1 / FWF04AATNMV1
MODEL: CK10/15/20CW
FCU 1
VALVE L/L1
3WV 3WV
X1 X2 X3
R
S
T
N
Relay (220-240V,10A)
N/L2 N/L2
FCU 2
VALVE L/L1 N/L2 N/L2
3WV
200-240V/1 /50Hz
208-230V/1 /60Hz
FCU 3
VALVE L/L1 N/L2 N/L2
X1, X2, X3
3WV
Chiller
3 way valve
Relay (220-240V, 10A)
Model: FWF02AATNMV1 / FWF03AATNMV1 / FWF04AATNMV1
PART NUMBER: 08024091944
INDOOR COIL SENSOR
RETURN AIR SENSOR
LCD WIRELESS
CONTROLLER
AC LC
MC
BLACK
PURPLE
RED
WHITE
RED
YELLOW FH
BROWN FM
ORANGE FL
FAN MOTOR
BLACK
Note : Unit comes in standard heatpump and for valve application.
WIRED
CONTROLLER
16
9
10
LED/IR RECEIVER
BLACK
BLACK G/Y
G/Y
RED
BLUE
BLUE
DP
AS
FLOAT SWITCH
TO 3 WAY VALVE
E
N
L
220~240V
1 PHASE 50Hz
VALVE L/L1 N/L2 N/L2
FIELD SUPPLY WIRING
WITH JUMPER FOR HEAT PUMP
WITHOUT JUMPER FOR COOLING
WITH JUMPER FOR VALVE APPLICATION
WITHOUT JUMPER FOR VALVELESS APPLICATION
AIR SWING MOTOR
DRAIN PUMP
CAUTION !

5
English
Model FWF02AATNMV1 FWF03AATNMV1 FWF04AATNMV1
Voltage range**
Recommended fuse* A 222
Power supply cable size* mm21.5 1.5 1.5
Number of conductors 333
220V-240V/1Ph/50Hz+!
• All wires must be firmly connected.
• All wires must not touch the water piping, or any moving parts of the fan motor.
• The power supply cord must be equivalent to H05VV-F (60227 IEC 52 or 60227 IEC 53) which is the minimum requirement,
and to be used in protective tube.
IMPORTANT : * These values are for information only. They should be checked and selected to comply with local and/or
national codes and regulations. They are also subject to the type of installation and size of conductors.
** The appropriate voltage range should be checked with label data on the unit.
A main switch or other means for disconnection, having a contact separation in all poles, must be incorpo-
rated in the fixed wiring in accordance with relevant local and national legislation.
OPERATING RANGE
Operating Limits:
Thermal carrier : Water
Water temperature : 5 ~50°C
Maximum water pressure : 16 bar
Air temperature : (as below)
Heating Mode
Cooling Mode
Temperature Ts °C/°F Th °C/°F
Minimum indoor 16.0 / 60.8 11.0 / 51.8
temperature
Maximum indoor 32.0 / 89.6 23.0 / 73.4
temperature
Minimum outdoor 16.0 / 60.8 -
temperature
Maximum outdoor 46.0 / 114.8 -
temperature
Ts: Dry bulb temperature. Th: Wet bulb temperature.
Temperature Ts °C/°F Th °C/°F
Minimum indoor 16.0 / 60.8 -
temperature
Maximum indoor 30.0 / 86.0 -
temperature
Minimum outdoor -5.0 / 23.0 -6.0 / 21.2
temperature
Maximum outdoor 24.0 / 75.2 18.0 / 64.4
temperature

6
1. Short Duct Specification
• The indoor unit is provided with air discharge and air intake “knock-out” hole for duct connection. However the connection of
the short duct for air discharge is possible on only one side.
• The use of short duct for air discharge will improve airflow distribution if there is an obstruction (such as a lighting fixture) or
in a long, narrow room or an L-shaped room. It also use for air-conditioning of two rooms simultaneously.
Note:
• Avoid using the short duct on which the air discharge grille can be completely closed, to prevent evaporator freezing.
• In order to prevent condensation forming, be sure that there is sufficient thermal insulation and no leakage of cool air when
installing the short duct.
• Keep the introduction of fresh air intake within 20% of total air flow. Also provide a chamber and use a booster fan.
2. Sealing Material
• It is possible to seal one of the four air discharge outlet. (Sealing two or more air discharge outlet could cause a malfunction).
• Remove the front panel and insert the sealing material into the air discharge outlet on the indoor unit to seal the air outlet.
• The sealing material is the same length as the longer air discharge outlet. If it is desired to seal the shorter air discharge outlet,
cut the sealing material to shorten it.
• Push the sealing material in about 10mm beyond the bottom surface of the indoor unit so that it does not touch the air louver.
Be sure not to push the sealing material in any farther than about 10mm.
Possible Opening Dimension For Duct Connection
Possible Direction For Air Discharge And Air Intake
Air Discharge Knock Out Hole Air Intake
Knock Out
Hole
Air Intake
Air DischargeAir Discharge
Air Discharge Air Discharge
ACCESSORY PARTS
AUTO RANDOM RE-START FUNCTION
If there is a power cut when the unit is operating, it will automatically resume the same operating mode when the power is
restored. (Applicable only to units with this feature).

7
English
OVERALL CHECKING
Error Description Cool LED Error Indication
Room sensor error 1 blink E1
Pipe water sensor error 2 blinks E2
Water pump error 6 blinks E6
Pipe water temperature fault 5 blinks E5
*Window open activated 3 blinks -
*Antifreeze mode activated 7 blinks -
*Load shedding activated 8 blinks -
Remote Control
When there is infrared remote control operating signal, the signal receiver on indoor unit will make a <beep> for signal
acceptance confirmation.
INDICATOR LIGHTS
*Only applicable for 4-pipe system
• Ensure the following, in particular:-
1. The unit is mounted solidly and rigid in position.
2. Piping and connections are leak proof.
3. Proper wiring has been done.
• Drainage check:- Pour some water into left side of drain pan (drainage are
in right side of unit).
• Test run:
1. Conduct a test run after water drainage test and gas leakage test.
2. Watch out for the following:
a) Is the electric plug firmly inserted into the socket?
b) Is there any abnormal sound from unit?
c) Is there any abnormal vibration on the unit itself or piping?
d) Is the drainage of water smooth?
Note:
• The installation guide above covers only the fan coil unit.
For installation of outdoor (mini chiller etc) please refer
to the installation guide for such unit.
• The installation of fan coil unit may vary accordingly to
the type of outdoor unit.
• Installation must be done by qualified personnel who are
familiar with this type of product.
Service Parts
Indoor air filter
Indoor unit
Maintenance Procedures
1. Remove any dust adhering to the filter by using a vacuum cleaner or wash
in lukewarm water (below 40°C/104°F) with a neutral cleaning detergent.
2. Rinse the filter well and dry before placing it back onto the unit.
3. Do not use gasoline, volatile substances or chemicals to clean the filter.
1. Clean any dirt or dust on the grille or panel by wiping it with a soft cloth
soaked in lukewarm water (below 40°C/104°F) and a neutral detergent
solution.
2. Do not use gasoline, volatile substances or chemicals to clean the indoor
unit.
Period
At least once every
2 weeks.
More frequently if
necessary.
At least once every
2 weeks.
More frequently if
necessary.
SERVICE AND MAINTENANCE

8
If any malfunction of the air conditioner unit is noted, immediately switch off the power supply to the unit. Check the
following fault conditions and causes for some simple troubleshooting tips.
TROUBLESHOOTING
Fault
1. The compressor does not operate 3 minutes after the
air conditioner unit is started.
2. The air conditioner unit does not operate.
3. The air flow is too low.
4. Discharge air flow has bad odor.
5. Condensation on the front air grille of the indoor unit.
6. Water flowing out from the air conditioner unit.
Causes / Action
- Protection against frequent starting. Wait for 3 to 4 minutes
for the compressor to start operating.
- Power failure, or the fuse need to be replaced.
- The power plug is disconnected.
- It is possible that your delay timer has been set incorrectly.
- If the fault persist after all these verifications, please contact
the air conditioner unit installer.
- The air filter is dirty.
- The doors or windows are open.
- The air suction and discharge are clogged.
- The regulated temperature is not high enough.
- Odours may be caused by cigarettes, smoke particles,
perfume etc. which might have adhered onto the coil.
- This is caused by air humidity after an extended long period
of operation.
- The set temperature is too low, increase the temperature
setting and operate the unit at high fan speed.
- Switch off unit and call dealer.
If the fault persists, please call your local dealer / serviceman.

Head office: Zandvoordestraat 300, B-8400 Oostende, Belgium
Umeda Center Bldg., 2-4-12, Nakazaki-Nishi,
Kita-ku, Osaka, 530-8323 Japan
Tokyo office:
JR Shinagawa East Bldg., 2-18-1, Konan,
Minato-ku, Tokyo, 108-0075 Japan
http://www.daikin.com/global/
Part No.: R08019029229