Daikin R-410A User manual

Floor Standing
TM-FVN-0515-A
TECHNICAL MANUAL

1. Model Name .......................................................................................................... 1
2. Features ................................................................................................................ 2
3. Specications........................................................................................................ 3
4. SoundData............................................................................................................ 4
5. ApplicationInformation .......................................................................................... 6
 OperatingRange ........................................................................................ 6
 RefrigerantCircuitDiagrams ...................................................................... 7
  Controllers................................................................................................... 8
6. Installations.......................................................................................................... 13
7.WiringDiagrams.................................................................................................. 30
8. Servicing&Maintenance.................................................................................... 33
9. Troubleshooting .................................................................................................. 35
10.DimensionalData ................................................................................................ 37
11.ExplodedView&PartList ................................................................................... 39
Note:Installationandmaintenancearetobeperformedonlybyqualiedpersonnelwhoare
 familiarwithlocalcodesandregulations,andexperiencedwiththistypeofequipment.
Caution:Sharpedgesandcoilsurfacesareapotentialinjuryhazard.Avoidcontactwiththem.
Warning:Movingmachineryandelectricalpowerhazard.Maycauseseverepersonnel
 injuryordeath.Disconnectandlockoffpowerbeforeservicingequipment.
TableofContents

1
TM-FVN-0515-A
1. Model Name
FV N
Type Of Air-Conditioner
FV : Floor Standing
Series
A : A Series
Power Supply
V1 : Single Phase, 220-240V, 50Hz
Controller
L : Wireless Controller
Refrigerant
N : R410A
Capacity Index
30 : Based On Btu/hr
30 AV1 L
Indoor
R N
Type Of Air-Conditioner
R : Single Split Condensing Unit
Series
C : C Series
D : D Series
Power Supply
V1 : Single Phase, 220-240V, 50Hz
Y1 : Three Phase, 380-415V, 50Hz
Refrigerant
N : R410A
Capacity Index
28 : Based On Btu/hr
28 CV1
Outdoor

2
TM-FVN-0515-A
2. Features
Modern And Stylish Design
DaikinR410Aoorstandingunitisdesignedwithstylishproleandclassycontrolpanelwhichiseasily
toblendinanyinteriorenvironment.        
Setting Control Method
Daikinoorstandingunitcanbecontrolledbyusingtwomethods:
a.settingbypressingthecontrolpanelontheunit
b.settingbyusingthewirelesscontroller(standard)      
Aesthetic Black Control Panel
The control panel is come with large button for ease of use. It provides a white LED light for clear
displaywhenswitchedon.        
Ion Plasma Generator
Ion plasma generator remove airborne contaminates from the air we breathe, and thus create a
refreshingenvironment.
Removable Washable Saranet Filter
Removalofairbornedustparticlesthroughsaranetlterensurescleanerairsupply.  
Turbo Mode
This functionisavailableinCOOLandDRYmodes.Uponactivation,theunitwilruntofullpowerwith
theindoorfanrunningathighspeedfor20minutes.Thiswillprovideafastcoolingduringoperation.
Auto Random Restart
In the event of sudden power failure during operation, unit can be automatically restarted from last
settingcondition.Thiseliminatestheneedtorestartmanuallyaftereachpowerfailure.  

3
TM-FVN-0515-A
3.Specications
Specications
FVN30AV1L FVN40AV1L FVN50AV1L FVN60AV1L
RN28CV1 RN40DY1 RN50DY1 RN61DY1
Btu/hr 28,000 40,000 45,000 55,000
W8,206 11,723 13,189 16,120
W2,840 4,050 4,680 5,490
A13.0 [7.07] [8.23] [9.35]
Btu/hr / W 9.86 9.88 9.62 10.02
V/Ph/Hz 220-240/1/50
OPERATION
HIGH l/s / CFM 319/ 675 489/ 1035 489/1035 552/1170
MEDIUM l/s / CFM 295/ 625 446/ 945 441/935 512/1085
LOW l/s / CFM 250/ 530 399/ 845 394/835 465/985
dBA 44/42/39 49/47/44 50/48/46 54/53/51
HEIGHT mm / in 1850/ 72.8
WIDTH mm / in 600/ 23.6
DEPTH mm / in 270/ 10.6
HEIGHT mm / in 1998/ 78.7
WIDTH mm / in 744/ 29.3
DEPTH mm / in 418/ 16.5
kg / Ib 42/ 92.6 45/ 99.2 48/105.8 51/112.4
mm / in
mm/ in
mm/ in 130 / 5.12
V/Ph/Hz
W154 237 239 289
A0.67 1.04 1.04 1.26
W44 100 100 150
8 10 10 10
DIAMETER mm / in
m² / ft²
FACE AREA 0.40
pc
CASING
CONTROL
VERTICAL
HORIZONTAL
AIR
DISCHARGE LOUVER
INDOOR UNIT
744/ 30.5
498/ 19.6
COPPER
7.00/ 0.28
ALUMINIUM
0.44
3
1
ASG20
379 / 14.92
180 / 7.09
1
SARANET
1
MODEL INDOOR UNIT
OUTDOOR UNIT
NOMINAL CAPACITY
NOMINAL TOTAL INPUT POWER
EER
REFRIGERANT CONTROL
REFRIGERANT TYPE
POWER SOURCE
NOMINAL RUNNING CURRENT, 1ø [3ø]
AIR
QUALITY FILTER RAIL TYPE
QUANTITY
QUANTITY
INDEX OF PROTECTION (IP)
INSULATION GRADE
AIR FLOW
POWER SOURCE
SOUND PRESSURE LEVEL
UNIT DIMENSION
PACKING DIMENSION
UNIT WEIGHT
CONDENSATE DRAIN SIZE
FAN
COIL
TUBE MATERIAL
FIN
MATERIAL
ROW
FIN PER INCH
FAN
MOTOR
TYPE
RATED INPUT POWER
RATED RUNNING CURRENT
MOTOR CAPACITY
TYPE
QUANTITY
MATERIAL
DRIVE
DIAMETER
LENGTH
MATERIAL
POLES
MANUAL
CONTROL PANEL OR WIRELESS REMOTE CONTROL
1850/ 72.8
600/23.6
350/ 13.8
1998/ 78.7
20
GALVANIZED MILD STEEL
OUTDOOR CAP.TUBE
R410A
380-415/3/50
2
220-240/1/50
19.05/ 0.75
SIROCCO
DIRECT
1 PHASE FIXED SPEED
23
F
AUTOMATIC

4
TM-FVN-0515-A
FVN30AV1L FVN40AV1L FVN50AV1L FVN60AV1L
RN28CV1 RN40DY1 RN50DY1 RN61DY1
l/s / CFM 684 / 1450 1604 / 3400
dBA 60 65
HEIGHT mm / in 753 / 29.6
WIDTH mm / in 855 / 33.7
DEPTH mm / in 328 / 12.9
HEIGHT mm / in 793 / 31.2
WIDTH mm / in 990 / 39
DEPTH mm / in 415 / 16.3
kg /Ib 57 / 125.7 95 / 209.4 98 / 216 105/231
LIQUID mm/in
GAS mm/in 19.05 / 3/4
mm/in 455 / 17.91
23 54 20 54
V/Ph/Hz
W124 257 276 496
RATED RUNNING CURRENT A 0.54 1.10 1.34 2.18
W75 145 145 400
RPM 877 625 680 890
6 6
DIAMETER mm / in
FACE AREA m²/ ft² 0.62 / 6.67 0.84/9.04
3
ROTARY
RB68A or FREOL
ALPHA68M
MOBILEAL
ARCTIC 22CC
Copeland Ultra
32-3MAF
MOBILEAL
ARCTIC 22 CC
cm³/ fl.oz 1242 / 42 1951 / 65.97 1656 / 56 1591/53.8
V/Ph/Hz 220-240 / 1 / 50
W2,562 3,556 4,165 4,705
A11.80 6.36 7.44 8.20
A67 64
kg / Ib 2.05 / 4.52 2.4 / 5.29 2.23 / 4.92 3.50/7.72
SCROLL
E
74
IVORY WHITE
PROPELLER
DIRECT
INDUCTION
F
8
COPPER
7/ 0.276
ALUMINIUM
0.87/ 9.36
380-415 / 3 / 50
2171 / 4600
852 / 33.5
1030 / 40.6
400 / 15.7
1010 / 39.8
1180 / 46.46
514 / 20.2
FLARE VALVE
2
MODEL
INDOOR UNIT
OUTDOOR UNIT
TYPE
QUANTITY
MATERIAL
REFRIGERANT CHARGE
OUTDOOR UNIT
AIR FLOW
SOUND PRESSURE LEVEL
UNIT DIMENSION
PACKING DIMENSION
UNIT WEIGHT
PIPE CONNECTION
TYPE
SIZE
FAN
COMPRESSOR
TYPE
OIL TYPE
OIL AMOUNT
INSULATION GRADE
POWER SOURCE
RATED INPUT POWER
RATED RUNNING CURRENT
LOCKED ROTOR AMP.
DRIVE
DIAMETER
POWER SOURCE
RATED INPUT POWER
CASING
MATERIAL
COLOUR
MOTOR CAPACITY
POLES
COIL
TUBE
MATERIAL
FIN
MATERIAL
ROW
FAN MOTOR
TYPE
QUANTITY
INDEX OF PROTECTION (IP)
INSULATION GRADE
MOTOR SPEED
FIN PER INCH
1
ASG20
600 / 23.62
1
GALVANIZED MILD STEEL
18
15.88 / 5/8
9.52 / 3/8
58
220-240/1/50
Specications

5
TM-FVN-0515-A
4.SoundData
Sound Pressure Level
Model
Model Measuring Location
Speed
High
Med
Low
48
47
45
52
50
48
52
50
48
56
55
53
47
45
43
50
49
47
51
50
48
54
53
51
41
39
36
47
44
42
48
46
45
51
50
48
39
35
32
43
41
38
44
42
40
49
47
45
35
32
28
41
38
35
42
39
36
47
45
43
29
26
20
36
32
29
36
33
30
42
40
37
24
19
16
29
25
21
29
25
22
36
34
30
44
42
39
49
47
44
50
48
46
54
53
51
38
35
33
43
40
37
44
42
40
48
46
44
High
Med
Low
High
Med
Low
High
Med
Low
125Hz 250Hz 500Hz 1kHz 2kHz 4kHz 8kHz
1/1 Octave Sound Pressure (dB, ref20µPa) Overall
(dBA)
Noise
Criteria
FVN30AV1L
FVN30AV1L
FVN40AV1L
FVN50AV1L
FVN60AV1L
FVN40AV1L
FVN50AV1L
FVN60AV1L
Standard: JIS C 9612
Indoor
unit
Microphone
1m
1m

6
TM-FVN-0515-A
5.ApplicationInformation
Operating Range
Ensure the operating temperature is in allowable range.
Cooling Only
!Caution :
The use of your air conditioner
outside the range of working
temperature and humidity can
result in serious failure.
Outdoor
DB (°C)
46
43
19
14 19 23 Indoor WB (°C)

7
TM-FVN-0515-A
Refrigerant Circuit Diagrams
Model: FVN30AV1L-RN28CV1
Model: FVN40AV1L-RN40DY1 / FVN50AV1L-RN50DY1
FVN60AV1L-RN61DY1

8
TM-FVN-0515-A
Controller
DGS01
Operating Guide
1 Transmission Source
• The source where the signal will be transmitted.
2 Signal Transmission Indication
• Blink to confirm that the last setting has been transmitted to the unit.
3 “ON/OFF” Button
• Press once to start the air conditioner unit.
• Press again to stop the unit.
4 Fan speed selection
• Press the button continuously will toggle the fan speed in the following order:
Low Med High Auto
• Stop pressing when the desired fan speed appears on the display screen.
5 Operation mode
• Press the MODE button to select the type of operating mode.
• For cooling only unit, the available modes are: COOL ( ), DRY ( ) and FAN ( ).
6 Automatic air swing
• Press the SWING ( ) button to activate the automatic air swing function.
• To distribute the air to a specific direction, press the SWING ( ) button and wait until the louver
move to the desired direction and press the button once again.
7 Turbo function
• Press for fast cooling operation.
• Fan speed turn to maximum speed.
• Press again to deactivate the function.
• Available under COOL and DRY modes only.
• Any change of fan speed will deactivate this function.
TURBO QUIET
SLEEP
ON OFF
MODE
TIMER
CANCEL CANCEL
CLOCK
3
13
4
9
12
7
1
2
5
6
8
10
11

9
TM-FVN-0515-A
7 Turbo function
• Press for fast cooling operation.
• Fan speed turn to maximum speed.
• Press again to deactivate the function.
• Available under COOL and DRY modes only.
• Any change of fan speed will deactivate this function.
8 Quiet function
• Press for quiet operation.
• Fan speed turn to minimum speed.
• Press again to deactivate the function.
• Any change of fan speed will deactivate this function.
9 ON timer setting
• Press the ON TIMER button will activate the on timer function.
• Set the desired on time by pressing the ON TIMER button continuously. If the timer is set to
7.30am, the air conditioner will turn on at 7.30am sharp.
• Press the CANCEL button to cancel the on timer setting.
10 OFF timer setting
• Press the OFF TIMER button will activate the off timer function.
• Set the desired off time by pressing the OFF TIMER button continuously.
• Press the CANCEL button to cancel the off timer setting.
11 Clock time setting
• Press and hold button to set the clock time.
12 Sleep mode setting
• Press the button will activate the sleep mode function.
• This is an energy saving option. When the unit is operating under cooling mode, the set
temperature is increased by 0.5°C after 30 minutes, 1˚C after an hour, and 2˚C after 2 hours.
• This function is available under COOL mode.
13 Temperature setting
• To set the desired room temperature, press the or button to increase or decrease the
set temperature.
• The temperature setting range is from 16°C to 30°C.
• Press both buttons and simultaneously to toggle from °C to °F setting.
4 Fan speed selection
• Press the button continuously will toggle the fan speed in the following order:
Low Med High Auto
• Stop pressing when the desired fan speed appears on the display screen.
5 Operation mode
• Press the MODE button to select the type of operating mode.
• For cooling only unit, the available modes are: COOL ( ), DRY ( ) and FAN ( ).
6 Automatic air swing
• Press the SWING ( ) button to activate the automatic air swing function.
• To distribute the air to a specific direction, press the SWING ( ) button and wait until the louver
move to the desired direction and press the button once again.

10
TM-FVN-0515-A
DSLM8
Operating Guide
MODE TURBO
TIMER
OVERRIDE
TIMER
ON OFF
TIMER
SWING QUIET
SLEEP
1
4
5
6
2
3
10
11
8
9
7
1 MODE Button
Press the MODE button to switch operation from COOL, AUTO*, DRY*, FAN. Check the display to
see in which mode the control is set. *AUTO and DRY are available for selected models only.
2 TURBO Fan Speed
Press the Turbo key once to activate Turbo fan speed. Turbo symbol will be shown. To disable Turbo
fan speed and back to previous fan speed, press the Turbo key once again. For the unit that does
not have TURBO fan speed it will show high fan speed.
3 SWING Function
Press SWING button to activate the swing function. Press it again to deactivate it.
4 QUIET Fan Speed
Press the Quiet key once to activate Quiet fan speed. Quiet symbol will be shown. To disable Quiet
fan speed and back to previous fan speed, press the Quiet key once again. For the unit that does
not have QUIET fan speed it will show low fan speed.
5 “▲” or “▼” Set Temperature Button
Press the temperature button and set the temperature of your choice by pressing “▲” or “▼” button
once, temperature changes by 1°C or 1°F. The default temperature setting range is from 16°C to
30°C (60°F to 86°F). When the Option 20 - 30ºC is set, the temperature range limit is set to 20ºC to
30ºC (68°F to 86°F). Pressing both keys simultaneously will toggle the temperature setting between
ºC and ºF.
6 SLEEP Function
Press the SLEEP button to activate the sleep mode. DRY MODE and FAN MODE are not valid
during sleep function.

11
TM-FVN-0515-A
7 “ON TIMER” and “OFF TIMER”
The unit has 2-event timer, namely Timer 1 and Timer 2, each event has an ON TIMER and an OFF
TIMER. The key press activity for Timer ON and Timer OFF is shown on Table 1.1
Table 1.1: Timer ON and Timer OFF key press and event sequence.
All timers are event-triggered timers and can be overridden by the ON/OFF button and Override function.
Set Event 1 and Event 2 Timers
Process for Timer ON and Timer OFF is the same.
1. Press and hold Timer ON/OFF key for 3 seconds to go into timer setting mode. (Icon ON 1 or
OFF 1 will blink)
2. Press UP or DOWN to select Timer 1 or Timer 2 to set. (‘1’ blinking indicate that Timer 1 is
currently selected, ‘2’ blinking indicate that Timer 2 is currently selected)
3. Press Timer ON/OFF key again to confirm. (Day will blink next)
4. Press UP or DOWN to select the day.
5. Press Timer ON/OFF key again to confirm the day. (Hour will blink next)
4. Press UP or DOWN to change the hour.
5. Press Timer ON/OFF key again to confirm the hour. (Minute will blink next)
6. Press UP or DOWN to change the minute.
7. Press Timer ON/OFF key again to confirm the minute.
Each timer (Timer 1 ON or Timer 1 OFF or Timer 2 ON or Timer 2 OFF) will only be set separately
after all 7 steps, if there is no key operation for 5 seconds during setting the timer, it will
automatically exits from setting mode and no changes will be made.
ON/OFF timer will be checked every 1 minute.
It is not advisable to set ON TIMER and OFF TIMER to have same values. Shall these occur, the
effective timer will be treated with priority as stated in Table 1.2.
Example:
ON TMR 2 settings: DAY – TUE, TIMER – 5.00pm
OFF TMR 1 settings: DAY – TUE, TIMER – 5.00pm
Outcome when RTC reaches 5.00pm on TUE:
- when unit is on, no respond.
- when unit is off, unit will trigger to on.
Table 1.2: Timer Priority
ON Timer 1 ON Timer 2 OFF Timer 1 OFF Timer 2
Deactivated Deactivated Deactivated Deactivated
Activated Deactivated Activated Deactivated
Deactivated Activated Deactivated Activated
Activated Activated Activated Activated
TIMER ON KEY TIMER OFF KEY
Priority Timer
1 (Highest)
2
3
4 (Lowest)
ONTMR2
OFFTMR2
ONTMR1
OFFTMR1
Upon IR reception, IR wireless remote controller will override ON TIMER 2 and OFF TIMER 2 settings.

12
TM-FVN-0515-A
8 OVERRIDE Function
Press the OVERRIDE key once will activate the override function for 1 hour. An indicator
“OVERRIDE 1” will show on the LCD. Press the same key again will increase the setting to 2 hours.
An indicator “OVERRIDE 2” will be shown. Subsequent press will deactivate the override function.
After the override timer is completed, the override function is deactivated and the logo is OFF. All
other timers will be resumed.
9 FAN Speed Function
Fan speed can be changed via pressing the FAN key:
Low > Med > High > Auto > Low >
10 ON/OFF Button
Starting Operation:
- Press the ON/OFF button, the LCD will show full display and the unit is turned on.
Stopping Operation:
- Press the ON/OFF button, the LCD will show real time clock only and the unit is turn off.
11 Real-time Clock (RTC) Display
RTC is shown on screen during the unit ON or OFF except for power failure or error code.
Set RTC Setting
1. Press RTC key one time will activate RTC setting mode. (Day will blink)
2. Press UP or DOWN to select the day.
3. Press RTC again to confi rm the day. (Hour will blink next)
4. Press UP or DOWN to change the hour.
5. Press RTC again to confi rm the hour. (Minute will blink next)
6. Press UP or DOWN to change the minute.
7. Press RTC again to confi rm the minute.
RTC will only be set after all 7 steps, if there is no key operation for 5 seconds during setting the
RTC, it will automatically exits from setting mode and no changes will be made on the setting.
12 Hardware Setting
The unit has 4 jumpers option to control the board function.
Table 2.0: Summary of Hardware Settings
OPTION
Set Temp. Range
TURBO_QUIET
Reserved
Reserved
With Jumper
Set Temp. Range from 20˚C-30˚C
Reserved
Reserved
Without Jumper
Set Temp. Range from 16˚C-30˚C
(Default)
Enable turbo and quiet fan speed
Reserved
Reserved
Disable turbo and quiet fan speed
(Default)

13
TM-FVN-0515-A
5.Installations
Installation Guideline
Installation Diagram
Sharp edges and coil surface are potential injury hazard. Avoid from contact with them.
Indoor Unit
Outdoor Unit
Air Discharge
Air Intake
Air Intake
Wrap the insulated pipe with the
finishing tape from bottom to top
Figure A
Air Discharge Louver
Indicator Lights
Air Intake Grille
Air Filters
(Inside Air Intake Grille)
Signal Receiver
CAUTION

14
TM-FVN-0515-A
Installation Of The Indoor Unit
Figure B
50mm or more 50mm or more
Preliminary Site Survey
Be sure to read this manual before installing the air-conditioner indoor unit.
• 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.
Standard Mounting
Ensure that the overhead supports are strong enough to hold the weight of the unit. Position the hanger
rods (wall mounting bracket for floor standing), and check for its alignment.
Also, check that the hangers are secured and the base of the fan coil unit is leveled in both horizontal
directions.
Please ensure that the following steps are taken:
- The drain pipe slope shall be kept at least 1:100.
- Provide clearance for easy servicing and optimal air flow as shown in Figure B.
- The indoor unit must be installed such that there is no short circuit of the cool discharge air with the
warm return air.
- Do not install the indoor unit where there is direct sunlight shining on the unit. The location should be
suitable for piping and drainage installation. The unit must be a large distance away from the door.

15
TM-FVN-0515-A
Bracket for installation
330
2-7 X 15 slot
18
Figure C
Figure D
)
)
M4 x 12 Screw Front Panel
Intake grille
Grille stopper
All dimensions are in mm
Indoor Unit Installation
Fixing Procedure
• Fix the indoor unit by using embedded bolt, etc. to prevent falling down of the vertically-long shaped
unit.
1. Detach the air intake grille.
Remove the screw (Right, Left, total 2) holding the grille. Then, (1) lean the grille forward you, and (2)
lift upward and out. Refer Figure C.
2. Install the indoor units.
< Method 1 >
Fix the bracket with the attached screws to the top panel as shown in Figure D.Then fix the indoor
unit to the wall surface.2.

16
TM-FVN-0515-A
Bottom frame
Side Panel
Through hole (left and right side panel, rear panel)
Through hole for wiring (left and right side panel)
Fixing Hole (x 4)
Bottom frame
260
57, (79)
144, (202)
<Bottom>
* Dimension in ( ) for 40-60 models.
All dimensions are in mm
Figure E
Figure F
< Method 2 >
Fix the indoor unit to the floor with Anchor bolts (to be locally procured) using fixing holes (x4) on the
bottom frame.
For more safety precaution, fix the indoor unit with < Method 1 > and < Method 2 > during installation.
Piping and Drain Hose Installation.
•Detach the pipe retainer,
<In case of left or right piping>
1. Open the holes on the Right (Left) side panel. (Refer to Figure F).
2. Pass refrigerant pipes, drain pipes, and unit wiring through the hole on the side panel.

17
TM-FVN-0515-A
Pipe retainer
Drain hose inside
the unit
Insulation for fitting
Fix using the cable tie
Knock-out hole
Rear panel
Cut holes here
Bottom panel
Figure G
<In case of rear piping>
1. Open the holes on the rear panel. (Refer to Figure G).
2. Pass refrigerant pipes, drain pipes, and unit wiring through the hole on the rear panel.
<In case of downward piping>
1. Cut holes in the indicated area of the bottom frame. (Refer to Figure G).
2. Pass refrigerant pipes, drain pipes, and unit wiring through the hole on the bottom frame.
After rigging pipes and wiring, lock down the refrigerant pipes, drain hose inside the unit,
indoor-out-door unit. Transmission wiring and grounding line, in the piping guide.

18
TM-FVN-0515-A
Liquid pipe
Gas pipe
Drain hose (Procure in field).
Vinyl Tube (Pipe size 20mm).
Anchor hose here
Bottom Frame
Fan housing
Drain hose inside the unit
Figure H
Air discharge
outlet
Heat
exchanger
Figure I
Drain Piping Work
1. Rig the drain piping.
Rig the drain line to ensure proper drainage. Also, observe the following to prevent leaks.
• Bundle the drain hose to the refrigerant pipes as shown at right or take other means to anchor it
down, so as not to apply pressure to the hose inside the unit. This is necessary to prevent the drain
hose from disconnecting and to ensure proper insulation. Keep the drain hose sloping at a minimum
1/100 gradient, to prevent air pockets.
• Condensate can form on the hose and leak from the unit. Therefore, definitely insulate the hose in at
least the below two places.
• All hose in the room and inside the unit.
• At connection between the unit’s drain hose and building drain pipe.
2. After rigging the drain hose, check that drainage flows smoothly and that water does not
leak from connections.
• Carefully pour approximately 1,000cc of water
through the air discharge outlet so that it falls
directly onto the heat exchanger at an angle
without splashing. (Refer to Figure I).
* If water is poured too fast or it water pressure is
too high, the water will pass through the heat
exchanger and drip on the fan motor below it.
* If water gets on the inner front wall, it will leak onto
the oor.