Daikin FTNV20JVAK User manual

INSTALLATION
MANUAL
R410A SPLIT SERIES
MODELS
FTNV20JVAK RNV20JVAK
FTNV25JVAK RNV25JVAK
FTNV30JVAK RNV30JVAK
FTYNV20JVAK RYNV20JVAK
FTYNV25JVAK RYNV25JVAK
FTYNV30JVAK RYNV30JVAK
FTS20JVAK RS20JVAK
FTS25JVAK RS25JVAK
FTYS20JVAK RYS20JVAK
FTYS25JVAK RYS25JVAK
English
Installation Manual
R410A Split Series
IM-5WMJ(R)-0714(2)-DAIKIN(SASO)
Part No.: R08019040624B
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English
1
Indoor Unit
A
TOP VIEW
C
SIDE VIEW
B
THE MARK SHOWS PIPING DIRECTION
REAR REAR
RIGHTLEFT
BOTTOM BOTTOM
FRONT GRILLE FIXED SCREWS
(INSIDE)
LOUVER
SIGNAL
RECEIVER
INDOOR UNIT
ON/OFF SWITCH
ROOM TEMPERATURE
THERMISTOR (INSIDE)
NAME PLATE
TERMINAL
BLOCK
WITH EARTH
TERMINAL
Original Instruction
OUTLINE AND DIMENSIONS
FRONT VIEW
All dimensions are in mm
D
B
G
HJ
LMA
K
F
I
GF
E
Through the wall
hole Ø 65mm
Drain hose position
Liquid pipe end Gas pipe end
INSTALLATION PLATE 20/25
All dimensions are in mm
Dimension
Model ABCDEFGH I JKLM
FT(Y)NV20/25 1124 310 237 190 173 61 40 45 48 91 219 580 45
FT(Y)S20/25 1172 320 242 190 173 61 40 45 48 91 219 580 45
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2
All dimensions are in mm
Outdoor Unit
N
LKL
SN
M
A
D
O
BP
QR
C
HG
FE
I J
Dimension
Model ABCDEFGH I JKLMNOPQRS
R(Y)NV20/25
R(Y)S20/25 855 730 328 520 182 44 93 149 101 113 603 126 164 15 34 23 73 75 362
Dimension
Model ABCDEFGH I JKLM
FT(Y)NV30 1289 310 240 201 193 57 50 45 80 196 177 650 52
D
B
G
HJ
LM
A
K
F
I
F
E
Through the wall
hole Ø 65mm
Drain hose position
Liquid pipe Gas pipe
INSTALLATION PLATE FTD30/36
SCREW
WM3035J WM3035J
SCREW
SCREW
SCREW
SCREW
SCREW
SCREW
All dimensions are in mm
Indoor Unit
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3
MADEIN MALAYSIA
Outdoor Unit
All dimensions are in mm
IJJ
D
M
B
G
O
Dimension
Model ABCDEFGH I JKLMNO
R(Y)NV30 1030 826 400 695 57 72 90 40 746 142 60 26 448 22 28
NN
K
A
L
EF
H
C
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4
SAFETY PRECAUTIONS
!WARNING !CAUTION
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}.
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Please take note of the following important points when
installing.
Do not install the unit where leakage of flammable gas may
occur.
If gas leaks and accumulates around the unit, it may cause
fire ignition.
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.
Do not overcharge the unit.
This unit is factory pre-charged. Overcharge will cause
over-current or damage to the compressor.
Ensure that the unit’s panel is closed after service or
installation.
Unsecured panels will cause the unit to operate noisily.
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 install the units at or near doorway.
Do not operate any heating apparatus too close to the air conditioner
unit or use in room where mineral oil, oil vapour or oil steam exist,
this may cause plastic part to melt or deform as a result of excessive
heat or chemical reaction.
When the unit is used in kitchen, keep flour away from going into
suction of the unit.
This unit is not suitable for factory used where cutting oil mist or
iron powder exist or voltage fluctuates greatly.
Do not install the units at area like hot spring or oil refinery plant
where sulphide gas exists.
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.
Don’t use joined and twisted wires for incoming power supply.
The equipment is not intended for use in a potentially explosive
atmosphere.
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INSTALLATION MANUAL
NOTICE
Disposal requirement
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.
This manual provides the procedures of installation to ensure a safe and good standard of operation for the air conditioner unit.
Special adjustment may be necessary to suit local requirements.
Before using your air conditioner, please read this instruction manual carefully and keep it for future reference.
This appliance is intended to be used by expert or trained users in shops, in light industry and on farms, or for commercial use by lay persons.
This appliance is not intended for use by persons, including children, with reduced physical, sensory or mental capabilities, or lack of experience
and knowledge, unless they have been given supervision or instruction concerning use of the appliance by a person responsible for their safety.
Children should be supervised to ensure that they do not play with the appliance.
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5
Unpacking Procedures
IMPORTANT
Wall Mounted Unit
1. After takeoff the bands and pull out one side cushion, push the unit to the opposite side.
•
2. Pull out the unit from the other side.
Outdoor Unit
1. After takeoff the bands, pull out the carton box from the top side of the unit.
•
* This product is not designed for re-packing. In case of re-packing, contact to Daikin Dealer.
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6
A
B
Air filter M4 x 12L
Air-Purifying Filter with
bacteriostatic virustatic function (2)
Front panel
75mm or more from ceiling
50mm or more from walls
(on both sides)
Air filter
Air-Purifying Filter
with bacteriostatic
virustatic function
Filter frame
Tab
Caulk pipe
hole gap
with putty.
Cut thermal insulation pipe
to an appropriate length and
wrap it with tape, making
sure that no gap is left in the
insulation pipe’s cut line.
Wrap the insulation pipe with
the finishing tape from bottom
to top.
■Opening service lid
Service lid is opening/
closing type.
■Opening method
1) Remove the service lid
screws.
2) Pull out the service lid
diagonally down in the
direction of the arrow.
3) Pull down.
500mm from wall
INSTALLATION DIAGRAM
Indoor unit
Outdoor Unit
Service lid
INSTALLATION OF THE OUTDOOR UNIT
The outdoor unit must be installed in such a way, so as to
prevent short circuit of the hot discharged air or obstruction to
the smooth air flow. Please follow the installation clearances
shown in the figure. Select the coolest possible place where
intake air temperature is not greater than the outside air
temperature (please refer operating range).
Installation clearances
Obstacle
Return air
Service access
Note: If there is any obstacle higher than half, of the unit’s
height (H), please allow more space than the figure indicated
in the above table.
Return air
Discharge air
C D
Dimension ABCD
Minimum Distance, mm 300 1000 300 500
Obstacle
Obstacle
Obstacle
H/2
H
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7
Condensed Water Disposal Of Outdoor Unit
(Heat Pump Unit Only)
There are 2 holes on the base of Outdoor Unit for
condensed water to flow out. Insert the drain elbow to
one of the holes.
To install the drain elbow, first insert one portion of the
hook to the base (portion A), then pull the drain elbow in
the direction shown by the arrow while inserting the other
portion to the base. After installation, check to ensure that
the drain elbow clings to base firmly.
If the unit is installed in a snowy and chilly area, condensed
water may freeze in the base. In such case, please remove
plug at the bottom of unit to smooth the drainage.
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Please remove
side plate when
connecting the piping
and connecting cord
PUSH & PULL UP
BASE
A
DRAIN ELBOW
DRAIN ELBOW
PLUG
The indoor unit must be installed in such a way so as to prevent
short circuit of the cool discharged air with the hot return air.
Please follow the installation clearance shown in the figure. Do
not place the indoor unit where there could be direct sunlight
shining on it. Also, this location must be suitable for piping
and drainage, and be away from doors or windows.
min. 50
(Space for
maintenance)
Air flow
(Indoor)
The refrigerant piping can be routed to the unit in a number of
ways (left or right from the back of the unit), by using the cut-
out holes on the casing of the unit (see figure). Bend the pipes
carefully to the required position in order to align it with the
holes. For the side and bottom, hold the bottom of the piping
and then position it to the required direction (see figure). The
condensation drain hose can be taped to the pipes.
Right-side, right-back or right-bottom piping
min. 50
(Space for
maintenance)
min. 75 (Space for performance)
Required space
Right-back piping
Bind coolant pipe
and drain hose
together with
insulating tape.
All dimensions are in mm Right-bottom
piping
Remove pipe port cover
here for right-bottom piping
Right-side
piping
Remove pipe port cover
here for right-side piping
Remove pipe port cover here for
left-bottom piping
Remove pipe port
cover here for
left-side piping
Left-back
piping
Left-side
piping
Left-bottom piping
Left-side, left-back or left-bottom piping
INSTALLATION OF THE INDOOR UNIT
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8
Bottom or side piping
(For FTS/FTYS only)
Cut off pipe port cover with a copping saw.
For bottom piping: On the bottom of the front grille
For side piping: On the side cover (front grille side and unit side)
Apply the blade of the copping saw to the notch, and cut off the pipe port cover along the uneven inner surface.
1)
ü
ü
After cutting off the pipe cover, perform filing.
Remove the burrs along the cut section using a half round needle file.
Wrap the inter-unit wire, refrigerant pipes and drain hose together with insulation tape.
Then, insert the drain hose and refrigerant pipes into the wall hole after inserting them into the cut out piping hole
opened.
2)
3)
NOTE
Be careful not to let chips enter the driving section of the arm.
Be careful not to put pressure on the lower front panel.
ü
ü
Left-side
piping
Right-bottom piping
Right-side
piping
Bind refrigerant pipe and drain hose
together with adhesive vinyl tape.
Left-bottom piping
The figure shows the case of left bottom piping
Front grille side
Side cover
(front grille side)
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9
Mounting Installation Plate
Ensure that the wall is strong enough to withstand the weight
of the unit. Otherwise, it is necessary to reinforce the wall
with plates, beams or pillars.
Use the level gauge for horizontal mounting, and fix it with
7 suitable screws.
In case the rear piping draws out, drill a hole 65mm in
diameter with a cone drill, slightly lower on the outside wall
(see figure).
Water Drainage Piping
The indoor drain pipe must be in a downward gradient for
smooth drainage. Avoid situations that are likely to cause
water to leak.
End
dipped
into
water
Water
leaking
Water
leaking
Water
leaking
Wrong Wrong Wrong
Drain
Water Drainage
Mounting plate
Clip
Mark (rear side)
Bottom frame
Front grille
How To Attach The Indoor Unit
Hook the claws of the bottom frame to the mounting plate.
How To Remove The Indoor Unit
Push up the marked area (at the lower part of the front grille)
to release the claws.
Mount The Unit Onto The Installation Plate
Hook the indoor unit onto the upper portion of the installation
plate (Engage the two hooks at the rear top of the indoor unit
with the upper edge of the installation plate). Ensure that the
hooks are properly seated on the installation plate by moving
it to the left and right.
Mounting plate
Interconnecting
wires
Hang indoor unit’s hook here.
Wire guide
When stripping the
ends of interconnecting
wires in advance, bind
right ends of wires with
insulating tape.
Recommended Mounting Plate Retention Spots
Water
Retention
Correct
Mounting plate
Mounting plate
fixing screw
20/25
Inside
Caulking
Outside
Wall embedded pipe
(Field supply)
Wall hole cover
(Field supply) Wall embedded pipe
(Field supply)
Ø 65
!CAUTION
• Do not install the unit at altitude over 2000m for both indoor and outdoor.
WM3035J
SCREW
WM3035J
SCREW
SCREW
SCREW
SCREW
SCREW
SCREW
Mounting plate
Mounting plate
fixing screw
30
Hole with cone drill
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Allowable Piping Length and Maximum No. of Bends
If the pipe is too long, both the capacity and reliability of the unit will drop. As the number of bends increases, resistance to
the flow of refrigerant system increases, thus lowering cooling capacity. As a result, the compressor may become defective.
Always choose the shortest path and follow the recommendations as tabulated below:
REFRIGERANT PIPING
Indoor unit
Outdoor Unit LE
Remark: The refrigerant pre-charged in the outdoor unit is for piping length up to 7.5m.
*Be sure to add the proper amount of additional refrigerant. Failure to do so may result in reduced performance.
Model Indoor FT(Y)NV20 FT(Y)NV25 FT(Y)NV30 FT(Y)S20 FT(Y)S25
Outdoor R(Y)NV20 R(Y)NV25 R(Y)NV30 R(Y)S20 R(Y)S25
Min. allowable length, m 333
Max. allowable length, m (L) 30 45 30
Max. allowable elevation, m (E) 15 25 15
Liquid pipe size, mm/(in) 6.35
(1/4")
6.35
(1/4")
9.53
(3/8")
6.35
(1/4")
6.35
(1/4")
Gas pipe size, mm/(in) 12.7
(1/2")
15.88
(5/8")
15.88
(5/8")
12.7
(1/2")
15.88
(5/8")
Bending must be carefully made so as not to crush the pipe. Use a pipe bender to bend a pipe where possible.
Equivalent length for various fitting (meter)
Pipe Size L joint Trap bend
3/8" (OD9.52mm) 0.18 1.3
1/2" (OD12.7mm) 0.20 1.5
5/8" (OD15.9mm) 0.25 2
3/4" (OD19.1mm) 0.35 2.4
7/8" (OD22.2mm) 0.40 3
1" (OD25.4mm) 0.45 3.4
1 1/8" (OD28.6mm) 0.50 3.7
1 3/8" (OD34.9mm) 0.60 4.4
Notes:
1. Equivalent piping length is obtained with actual length of gas piping.
2. 90° bend of piping is equivalent to L joint.
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11
Piping Works And Flaring Technique
Do not use contaminated or damaged copper tubing. If
any piping, evaporator or condenser had been exposed or
had been opened for 15 seconds or more, the system must
be vacuumed. Generally do not remove plastic, rubber
plugs and brass nuts from the valves, fittings, tubing and
coils until it is ready to connect suction or liquid line into
valves or fittings.
If any brazing work is required, ensure that nitrogen gas
is passed through coil and joints while the brazing work
is being done. This will eliminate soot formation on the
inside wall of copper tubings.
Cut the pipe stages by stages, advancing the blade of pipe
cutter slowly. Extra force and a deep cut will cause more
distortion of pipe and therefore extra burr. See Figure I.
Remove burrs from cut edges of the pipes with remover. See
Figure II. Hold the pipe on top position and burr remover
at lower position to prevent metal chips from entering the
pipe. This will avoid unevenness on the flare faces which
will cause gas leak.
Insert the flare nuts, mounted on the connection parts
of both the indoor unit and outdoor unit, into the copper
pipes.
The exact length of pipe protruding from the top surface
of the swaging block is determined by the flaring tool.
See Figure III.
Fix the pipe firmly on the swaging block. Match the centers
of both the swaging block and the flaring punch, then
tighten the flaring punch fully.
The refrigerant pipe connection are insulated by closed
cell polyurethane.
Piping Connection To The Units
Align the center of the piping and tighten the flare nut
sufficiently with fingers. See Figure IV.
Finally, tighten the flare nut with torque wrench until the
wrench clicks.
When tightening the flare nut with the torque wrench,
ensure that the tightening direction follows the arrow
indicated on the wrench.
The refrigerant pipe connection are insulated by closed
cell polyurethane.
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1/4t
Cutting Copper Tube
Copper Tube
Swaging Block
Remove Burr
Figure I
D
A
Pipe Size, mm (in) Torque, Nm/(ft-lb)
6.35 (1/4") 18 (13.3)
9.52 (3/8") 42 (31.0)
12.70 (1/2") 55 (40.6)
15.88 (5/8") 65 (48.0)
19.05 (3/4") 78 (57.6)
Flared Tube
Flare Joint
Flare NutIndoor Piping
Torque Wrench
Spanar
Ø Tube, D A (mm)
Inch mm Imperial
(Wing-nut Type)
Rigid
(Clutch Type)
1/4" 6.35 1.3 0.7
3/8" 9.52 1.6 1.0
1/2" 12.70 1.9 1.3
5/8" 15.88 2.2 1.7
3/4" 19.05 2.5 2.0
REFRIGERANT PIPING
Figure II
Figure III
Figure IV
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12
ELECTRICAL WIRING CONNECTION
Cooling Unit (single phase)
IMPORTANT : * The figures shown in the table are for information purpose only. They should be checked and selected
to comply with the local/national codes of regulations. This is also subject to the type of installation and
conductors used.
** The appropriate voltage range should be checked with label data on the unit.
Model Indoor (FTNV/FTS) 20 25 30
Outdoor (RNV/RS) 20 25 30
Voltage range** 230V/~/60Hz + !
Power supply cable size* mm2
Number of conductors
2.5
3
2.5
3
4.0
3
Interconnection cable size* mm2
Number of conductors
2.5
3
2.5
3
4.0
3
Recommended fuse/circuit breaker rating* A20 25 25
Model Indoor (FTYNV/FTYS)
20 25 30
Outdoor (RYNV/RYS) 20 25 30
Voltage range** 230V/~/60Hz+!
Power supply cable size* mm2
Number of conductors
2.5
3
2.5
3
2.5
3
Interconnection cable size* mm2
Number of conductors
2.5
5
2.5
5
2.5
5
Recommended fuse/circuit breaker rating* A20 25 25
There must be an all pole
disconnection in the supply
mains with a contact separation
of at least 3mm.
!
Outdoor unit
Terminal Block
Indoor unit
Terminal Block
Interconnection cable
Power
Supply
N / L2
L / L1
Main
Switch
Fuse /
Circuit
Breaker
Power
Supply
Cable
COMP
N1
N
L
COMP
N
Heat Pump Unit (single phase)
There must be an all pole
disconnection in the supply
mains with a contact separation
of at least 3mm.
!
Interconnection cable
L
N
OF
4WV
COMP
N1 N
OF
4WV
COMP
Power
Supply
N / L2
L / L1
Main
Switch
Fuse /
Circuit
Breaker
Power Supply
Cable
Outdoor unit
Terminal Block
Indoor unit
Terminal Block
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13
Attach insulation sleeve
Round crimp-style terminal
Electric wire
All wires must be firmly connected.
All wires must not touch the refrigerant piping, compressor or any moving parts of the fan motor.
The connecting wires between the indoor unit and the outdoor unit must be clamped on the wire clamps.
The power supply cord must be equivalent to H07RN-F which is the minimum requirement.
Make sure no external pressure is applied to the terminal connectors and wires.
Make sure all the covers are properly fixed to avoid any gap.
Use round crimp-style terminal for connecting wires to the power supply terminal block. Connect the wires by matching
to the indication on terminal block. (Refer to the wiring diagram attached on the unit).
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Connect wires of the
same gauge to both side.
Do not connect wires of the
same gauge to one side.
Do not connect wires
of different gauges.
Used the correct screwdriver for terminal screws tightening. Unsuitable screwdrivers can damage the screw head.
Over tightening can damage the terminal screws.
Do not connect wire of different gauge to same terminal.
Keep wiring in an orderly manner. Prevent the wiring from obstructing other parts and the terminal box cover.
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14
VACUUMING AND CHARGING
Vacuuming is necessary to eliminate all moisture and air from the system.
Vacuuming The Piping And The Indoor Unit
Except for the outdoor unit which is pre-charged with
refrigerant, the indoor unit and the refrigerant connection
pipes must be air-purged because the air containing moisture
that remains in the refrigerant cycle may cause malfunction
of the compressor.
Remove the caps from the valve and the service port.
Connect the center of the charging gauge to the vacuum
pump.
Connect the charging gauge to the service port of the
3-way valve.
Start the vacuum pump. Evacuate for approximately
30 minutes. The evacuation time varies with different
vacuum pump capacity. Confirm that the charging gauge
needle has moved towards -760mmHg.
Caution
If the gauge needle does not move to -760mmHg, be sure
to check for leakage at flare type connection of the indoor
and outdoor unit and repair the leak before proceeding to
the next step.
Close the valve of the changing gauge and stop the vacuum
pump.
On the outdoor unit, open the suction valve (3 way) and
liquid valve (2 way) (in anti-clockwise direction) with 4mm
key for hexagon sacked screw.
Charge Operation
This operation must be done by using a gas cylinder and a
precise weighing machine. The additional charge is topped-up
into the outdoor unit using the suction valve via the service
port.
Remove the service port cap.
Connect the low pressure side of the charging gauge to the
suction service port center of the cylinder tank and close
the high pressure side of the gauge. Purge the air from the
service hose.
Start the air conditioner unit.
Open the gas cylinder and low pressure charging valve.
When the required refrigerant quantity is pumped into
the unit, close the low pressure side and the gas cylinder
valve.
Disconnect the service hose from service port. Put back
the service port cap.
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Refrigerant Piping
Outdoor Unit 3 ways valve
Allen key
Service Port
Flare nut
HIGH PRESSURE GAUGE
GAUGE MANIFOLD
LOW PRESSURE GAUGE
HANDLE HI (ALWAYS CLOSED)
CHARGE HOSE
-760mmHg
HANDLE LO
CHARGE HOSE VACUUM PUMP
ADAPTER FOR
COUNTER FLOW
PREVENTION
CHECK
VA LV E
LIQUID
VA LV E
HIGH PRESSURE GAUGE
LOW PRESSURE GAUGE
GAUGE MANIFOLD
-760mmHg
HANDLE LO
HANDLE HI (ALWAYS CLOSED)
CHARGE HOSE
CHARGE HOSE
CHECK
VA LV E
LIQUID
VA LV E
GAS VALVE
(3-WAY)
GAS VALVE
(3-WAY)
CONFIGURATION OF AIR
PURGE BY CHARGING
CONFIGURATION OF AIR
PURGE BY CHARGING
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English
15
Additional refrigerant charge [g] per additional 1m length as tabulated (For R410A models)
IR Signal Receiver
When an infrared remote control operating signal has been
transmitted, the signal receiver on the indoor unit will respond
as below to confirm acceptance of the signal transmission.
IR Receiver
Cooling Unit / Heat Pump Unit
The table shows the LED indicator lights for the air conditioner
unit under normal operation and fault conditions.
The LED indicator lights are located at the right bottom of
the air conditioner unit.
The heat pump units are equipped with an “auto” mode
sensor whereby it will provide reasonable room temperature
by switching automatically to either “cool” or “heat” mode
according to the temperature set by the user.
ON/OFF
Cool/Heat
Timer
Sleep
ON/OFF switch
The refrigerant is pre-charged in the outdoor unit. If the piping length is less than 7.5m, then additional charge after vacuuming
is not necessary. If the piping length is more than 7.5m, then use the additional charge value as indicated in the table.
IR Receiver
INDICATOR LIGHTS
Indoor FT(Y)NV/FT(Y)S20/25 FT(Y)NV30
Outdoor R(Y)NV/R(Y)S20/25 F(Y)NV30
Additional charge [g/m] 20 50
ON to OFF 1 Long Beep
OFF to ON
Pump down/Cool force on
2 Short Beep
Others 1 Short Beep
Example:
FTNV20 & RNV20 with 12m piping length, additional piping length is 4.5m. Thus,
Additional charge = 4.5[m] x 20[g/m]
= 90[g]
LED Indicator Lights for Cooling Unit/Heat Pump Unit
Cool/Heat/Timer
IR Receiver
ON/OFF switch
IR Receiver
ON/OFF
ADDITIONAL CHARGE
For FTS/FTYS only
For FTS/FTYS only
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16
LED Indicator Lights: Normal Operation And Fault Conditions For Cooling/Heat Pump Unit
(For FT(Y)NV30 only)
Note: The unit will not detect sensor missing when the compressor is ON.
COOL/HEAT
(GREEN/RED)
Normal Operation/Fault Indication Action Error Code
Green Cool mode - -
Red Heat mode - -
Red Auto mode in Heating operation - -
Green Auto mode in Cooling operation - -
Timer on - -
Sleep mode on - -
Fan mode on - -
Dry mode on - -
1 time
Room air sensor contact
Loose/Short Call your dealer Blink E1
3 times Outdoor coil sensor open Call your dealer Blink E3
2 times Indoor coil sensor open Call your dealer Blink E2
1 time
Compressor overload/ Indoor coil sensor
short/ outdoor coil sensor short Call your dealer Blink E4
Red Defrost operation - -
3 times Gas leak Call your dealer Blink E5
6 times Hardware error (tact switch pin short) Call your dealer Blink E8
4 times No feedback from indoor fan Call your dealer Blink E9
ON ON or OFF Blinking
COOL/HEAT
(BLUE/RED)
Operation
BLUE Cool mode
RED Heat mode
RED Auto mode in Heating operation
BLUE Auto mode in Cooling operation
Timer on
Sleep mode on
BLUE Fan mode on
BLUE Dry mode on
RED Defrost operation
BLUE Unit error
ON Blinking
LED Indicator Lights: Normal Operation And Fault Conditions For Cooling/Heat Pump Unit
(For FT(Y)NV20/25 only)
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English
17
COOL/HEAT/TIMER
(BLUE/RED/VIOLET)
Operation
BLUE Cool mode
RED Heat mode
RED Auto mode in Heating operation
BLUE Auto mode in Cooling operation
VIOLET Timer on
BLUE Fan mode on
BLUE Dry mode on
RED Defrost operation
BLUE Unit error
ON Blinking
LED Indicator Lights: Normal Operation And Fault Conditions For Cooling/Heat Pump Unit
(For FT(Y)S20/25 only)
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Dry Mode
When the air humidity is high, the unit can operate in dry
mode. Press <MODE> button and choose <DRY>.
If the room temperature is 2°C/3.6°F higher than the
set temperature, the air conditioner will operate under
cooling mode until it reaches within the 2°C/3.6°F range
of difference compared to the set temperature before it
converts to dry mode.
If the room temperature is within the 2°C/3.6°F range of
difference compared to the set temperature, it will directly
operate under dry mode.
The unit will operate at LOW speed under dry mode.
Heat Mode (for heat pump unit only)
When the unit is switched on from cold start or defrosting
cycle, the indoor fan will start to operate only after the coil
reaches the desired temperature.
When the set temperature is achieved, the indoor fan will
operate until the coil cannot provide anymore additional
heat.
Air Flow Control
For more effective air circulation, you can manually adjust
the air discharge grille to the left or right.
During cool mode operation and dry mode operation, do
not direct the air discharge louver downwards for too long.
If operating continues in this way, condensation may occur
on the louver, thus resulting in drippings.
Overheating Protection (for heat pump unit only)
In case the internal and/or the external temperature is
too high, or that the filter is dirty and clogged up, the
refrigerant may be overheated. The compressor will cut out
when the condensing temperature reaches 62°C/143.6°F.
Frost Prevention
When the air filter is dirty, the evaporating temperature
will decrease and eventually cause frosting.
If the evaporating temperature reaches -1°C/33.8°F, the
unit will trip.
Fan Speed And Rated Cooling Capacity
The rated cooling capacity is provided at the HIGH fan
speed.
The cooling capacity is lower when the unit is operating
at MEDIUM and LOW fan speed.
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Notes On Flaps And Louvers Angles
When “SWING button” is selected, the flaps swinging
range depends on the operation mode. (See the figure.)
ATTENTION
Always use a remote controller to adjust the flaps angle.
If you attempt to move it forcibly with hand when it is
swinging, the mechanism may be broken.
Be careful when adjusting the louvers. Inside the air outlet,
a fan is rotating at a high speed.
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In COOL, DRY and FAN mode
When stop
operation
Upper limit
Lower limit
AIR CONDITIONER UNIT OPERATION
OPERATING RANGE
COOLING
Indoor WB (˚C)
DB: Dry bulb WB: Wet bulb
In HEAT mode
When stop
operation
Upper limit
Lower limit
HEATING
Outdoor DB
(˚C)
Outdoor WB
(˚C)
Indoor DB (˚C)
54
52
19
14 19 23
18
10
-9
15 20 27
Cooling
Mode
Upper
Limit (˚)
Lower
Limit (˚)
20 55 85
25 45 75
30 55 85
Heating
Mode
Upper
Limit (˚)
Lower
Limit (˚)
20 70 110
25 60 100
30 70 110
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