Order No. MAC0602019C2
Air Conditioner
CS-F18DTE5 CU-J18DBE5
TABLE OF CONTENTS
1 Service Information---------------------------------------------- 3
1.1. Example of trouble at test operation------------------ 3
1.2. Caution of test operation--------------------------------- 3
1.3. Caution during automatic address setting----------- 3
1.4. Operation range-------------------------------------------- 4
2Features------------------------------------------------------------- 5
2.1. Ceiling Type------------------------------------------------- 5
2.2. Outdoor Unit ----------------------------------------------- 5
PAGE PAGE
2.3. Wired Remote Control------------------------------------7
2.4. Wireless Remote Control --------------------------------7
2.5. Group Control Equipment--------------------------------8
3 Product Specification -------------------------------------------9
3.1. CS-F18DTE5 CU-J18DBE5-----------------------------9
3.2. Safety Devices-------------------------------------------- 10
4Dimensions------------------------------------------------------- 11
4.1. CS-F18DTE5---------------------------------------------- 11
© 2006 Panasonic HA Air-Conditioning (M) Sdn Bhd
(11969-T). All rights reserved. Unauthorized copying
and distribution is a violation of law.
4.2. CU-J18DBE5----------------------------------------------12
5 Refrigeration Cycle---------------------------------------------13
5.1. CS-F18DTE5 CU-J18DBE5---------------------------13
6 Block Diagram ---------------------------------------------------14
6.1. CS-F18DTE5----------------------------------------------14
6.2. CU-J18DBE5 --------------------------------------------- 14
7 Wiring Diagram --------------------------------------------------15
7.1. CS-F18DTE5 --------------------------------------------- 15
7.2. CU-J18DBE5----------------------------------------------16
8 Operation Instructions----------------------------------------17
8.1. Wired Remote Control ----------------------------------17
8.2. Remote Control - Display ------------------------------ 18
8.3. Remote Control - Panel --------------------------------19
8.4. How to set remote control day and time------------20
8.5. How To Select The Timer ------------------------------20
8.6. Daily Timer Setting---------------------------------------21
8.7. Weekly Timer Setting------------------------------------ 22
8.8. Wireless Remote Control-------------------------------24
9 Operation Details------------------------------------------------ 25
9.1. Cooling Operation----------------------------------------25
9.2. Soft Dry Operation---------------------------------------25
9.3. Auto Operation--------------------------------------------25
9.4. Fan Operation---------------------------------------------25
9.5. Normal Control--------------------------------------------26
9.6. Operation Control ----------------------------------------27
9.7. Protection Control----------------------------------------28
9.8. Test Run ----------------------------------------------------29
10 Installation Instruction----------------------------------------30
10.1. Pipe length-------------------------------------------------30
10.2. Refrigerant additional charge -------------------------30
10.3. Position of the centre gravity--------------------------31
10.4. Indoor unit installation-----------------------------------32
10.5. Outdoor unit installation ------------------------------- 42
10.6. Wired remote control installation---------------------54
10.7. Wireless remote control installation manual-------62
11 Installation and Servicing Air Conditioner Using
R410A---------------------------------------------------------------69
11.1. Outline ------------------------------------------------------69
11.2. Tools for installing/servicing refrigerant piping ----70
11.3. Refrigerant piping work---------------------------------74
1 1 .4. Installation, transferring, servicing -------------------76
12 Troubleshoo ting Guide----------------------------------------80
12.1. For standard installation--------------------------------80
12.2. During group control operation -----------------------82
12.3. Test operation and self-diagnosis --------------------83
12.4. Emergency operation -----------------------------------87
12.5. Self-diagnosis error code table ----------------------- 89
13 Technical Data----------------------------------------------------91
13.1. Cooling capacity performance data------------------91
13.2. Capacity and power consumption--------------------92
13.3. Reaching distance ---------------------------------------95
13.4. Sound data-------------------------------------------------96
13.5. Sound measuring point---------------------------------97
13.6. Fan performance-----------------------------------------98
13.7. Discharge and suction pressure----------------------99
13.8. Operating characteristics-------------------------------99
14 Exploded View (Indoor Unit) ------------------------------ 100
14.1. CS-F18DTE5-------------------------------------------- 100
14.2. CS-F18DTE5-------------------------------------------- 101
14.3. CS-F18DTE5-------------------------------------------- 102
15 Replacement Part List (Indoor Unit)-------------------- 103
15.1. CS-F18DTE5 --------------------------------------------103
16 Exploded View (Outdoor Unit) ----------------------------105
16.1. CU-J18DBE5 --------------------------------------------105
16.2. CU-J18DBE5 --------------------------------------------106
17 Replacement Part List (Outdoor Unit) ------------------107
17.1. CU-J18DBE5 --------------------------------------------107
18 Print Pattern-----------------------------------------------------108
18.1. Indoor Unit Printed (Main)----------------------------108
18.2. Indoor Unit Printed (Indicator)-----------------------109
18.3. Outdoor Unit (Main)------------------------------------109
2
1 Service Information
Notice of Address setting for NEW Cassette / NEW Out door Unit.
The new Cassette / New Outdoor models are possible to have address setting for twin control by automatic when main
power supply is switched on.
(Manual address setting is also possible by using Dip switch on Indoor unit P.C. board.) However, this address setting is only
possible when made proper wiring connection and also Indoor unit should be original virgin unit.
1.1. Example of trouble at test operation
If found out as following phenomenon at test operation on site, it may have possibility of wrong address setting.
Therefore, please ensure of the address setting.
1. LCD display of wired remote control had not illuminate although the main power supply switch is ‘on’.
2. LCD display had indicated as normal illumination when power supply switch is ‘on’, however outdoor unit cannot be operated.
(But, it is necessary to take 3 to 5 minutes for outdoor unit to start from the timing of remote control ON/OFF switch is ‘on’.)
3. P.C. board had memorized wrong setting information.
a. If main power supply is switched ‘on’ with the wrong connection.
b. When changing the connection or combination of units due to re-installation etc.
• When changing the system from group control to normal one to one system.
• When making the replacement of units as master and slave etc.
1.2. Caution of test operation
Do not touch the remote control switch and do not change any wirings for one minute when the main power supply switch is ‘on’.
(Because the unit is having automatic address setting during the first one minute.)
1.3. Caution during automatic address setting
When main power supply switch is ‘on’, the P.C. board will automatically memorize the connecting system.
Consequently, when initial power supply is ‘on’, there will not be interchangeability of units even of the same type and same capacity unit. Therefore unable to connect the unit to another system.
3
1.4. Operation range
1.4.1. Power Supply
The applicable voltage range for each unit is given in the following ta ble. The working voltage among the three phases must be balanced within a 3% deviation from each voltage at the compressor terminals. The starting voltage must be higher than 85% o f the
rated voltage.
MODEL Unit Main Power Applicable Voltage
CU- Phase, Volts Hz Max. Min.
1 ~ 220 50 242 198
J18DBE5 1 ~ 230 50 253 207
1 ~ 240 50 264 216
1.4.2. Indoor and Outdoor Temperature
• Model 50Hz CU-J18DBE5
Operating Hz Indoor Temp. (D.B./W.B.) (°C) Outdoor Temp. (D.B./W.B.) (°C)
Max. Min. Max. Min.
Cooling 50 32/23 21/15 43/- -5/-
4
2 Features
2.1. Ceiling Type
2.1.1. Easier Maintenance and Cleaning
• Anti-Mould Long Life Air Filter.
• 3-Direction Pipe Lead-Out.
2.1.2. Wide Air Discharge, Comfortable Control
• Wide-Angle Airflow — 100 Degrees Horizontal.
• Auto Swing Louver.
2.2. Outdoor Unit
2.2.1. Flexible Installation in Smaller Spaces
• Long Pipe design with maximum piping length of 30m.
• Flexible 4-way piping.
5
• Centralized Drain Method gathered multiple outdoor unit’s drain pipes into a single drain pipe to makes installation easier a nd
also improve appearance.
• Side-by-Side Continuous Installation is possible even outdoor units with different capacities.
2.2.2. Quiet, Efficient Design
• A host of silencing technologies achieves super-quiet operation.
• The Noise-Suppressing Winglet Fan is a result of new research into vane design theory. The unique curved shaped suppressed
the generation of vortexes, thus reduces air flows noise.
• Operating efficiency is improved and energy consumption reduced.
2.2.3. Low Ambient Cooling Operation
• The unit can set for cooling even when the outdoor temperature drops to -10°C. This is ideal for location such as non-residential
computer room (where the temperature is not less than 21°C and humidity is not more than 45%) that require cooling even in
winter.
6
2.3. Wired Remote Control
1. The new design includes an easily-visible red pilot lamp. The power can be turned on and off at a single touch, without opening the cover.
2. Has a build-in thermistor, allowing indoor temperature detection in accordance with indoor conditions by switchi ng with main
unit thermistor.
3. Twin non-polar wires make installation work easy. (10 m cable supplied as accessory.)
2.4. Wireless Remote Control
1. New design with compact size. (Operation range within approximately 8 m.)
2. Built-in timer with OFF/ON timer setting (within 24 hours)
Wired Wireless
CZ-RD513C CZ-RL513T
NOTE: Both of the above remote control is packed separately from the indoor unit.
7
2.5. Group Control Equipment
Wired
remote
control
Common
control
Group control by one remote control
• All air conditioner units are controlled as a whole by remote control.
• All indoor units operate in the same
mode.
Twin remote control separate control
• Each indoor unit can be operated by
either one of the two remote control.
• Apart from timer setting time, displays for two remote control are
identical.
• Last button pressed has priority
(main or slave is set at remote control unit).
Common control / group
• Operation is possible using either
wired or wireless remote control
unit.
• Last button pressed has priority.
[Remote side]
• Optional wired remote control CZ-RD513C
[Local side]
Not needed
[Remote side]
• Optional wired remote control
[Local side]
• Optional wired remote control CZ-RD513C
• Optional wired remote control and wireless remote
control
Wired CZ-RD513C
Wireless CZ-RL513T
8
3 Product Specification
3.1. CS-F18DTE5 CU-J18DBE5
Indoor Unit Outdoor Unit
ITEM / MODEL Main Body CS-F18DTE5 CU-J18DBE5
Remote CZ-RD513C (Wired)
Control CZ-RL513T (Wireless)
Cooling Capacity kW 5.0
BTU/h 17,100
Refrigerant Charge-less m 20
Standard Air Volume for High Speed
Outside Dimension (H × W × D) mm 210 × 1245 × 700 795 × 900 × 320
Net Weight kg (lbs) 33 (73) 57 (126)
Piping Refrigerant Gas mm (inch) O.D Ø 12.70 (1/2) Flared Type
Connection Liquid mm (inch) O.D Ø 6.35 (1/4) Flared Type
Drain O.D Ø 20 I.D Ø 20
Compressor Type, Number of Set — Hermetic, 1
Starting Method — Permanent Split Capacitor
Motor Type — 2-pole 1 phase brushless motor
Rated Output kW — 1.5
Fan Type, Number of Set Sirocco fan-4 Mix flow fan-1
Motor Type 4-pole single phase induction motor 6-pole single phase induction motor
Rated Output kW 0.022 0.07
Air-heat Exchanger (Row × Stage × FPI) Louver-fin type (2 × 12 × 18) Corrugate-fin type (1 × 36 × 21)
Refrigerant Control — Expansion Valve
Refrigerant Oil (Charged)
Refrigerant (Charged) R410A kg (oz) — 1.10 (38.8)
Running Control Switch Wireless or Wired Remote Control —
Adjustment Room Temperature Thermostat —
Noise Level dB (A) Cooling: 41/37 49/-
Moisture Removal L/h (Pt/h) 2.8 (5.9)
EER W/W 2.81/2.76/2.72
3
/min
m
cfm 494 2013
inch 8-9/32 × 49-1/64 × 27-9/16 31-5/16 × 35-7/16 × 12-19/32
3
cm
Power level Cooling: 58/54 65/-
dB
14 57
— FV50S
1. Cooling capacities are based on indoor temperature of 27°C D.B. (80.6°F D.B.), 19.0°C W.B. (66.2°F W.B.) and outdoor air
temperature of 35°C D.B. (95°F D.B.), 24°C W.B. (75.2°F W.B.)
2. Heating capacities are based on indoor temperature of 20°C D.B. (68°F D.B.) and out door air temperature of 7°C D.B. (44.6°F
D.B.), 6°C W.B. (42.8°F W.B.)
ELECTRICAL DATA (50 Hz)
ITEM / MODEL Condition by ISO5151
Volts V 220 230 240
Phase Single Single Single
Power Consumption kW Cooling 1.78 1.81 1.84
Running Current A Cooling 8.15 8.10 8.05
Starting Current A 26 27 28
Power Factor % Cooling 99 97 95
*Power Factor means total figure of compressor, indoor fan motor and outdoor fan motor.
Panasonic Power source AC, 1~220V, 230V, 240V 50Hz
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3.2. Safety Devices
INDOOR UNIT
Indoor Unit Cooling Only Model CS-F18DTE5
For fan motor protection
Internal OFF °C 135
Protector ON °C87
For control protection
Fuse CUT A 3.15
OUTDOOR UNIT
Outdoor Unit Cooling Only Model 50Hz CU-J18DBE5
For refrigerant cycle
High pressure OFF
Switch (63H1) ON
For compressor
Over current protection
Cooling Only Model OFF A —
RESET — Automatic
Discharge temp protection
Discharge Compressor
temperature OFF °C114
thermistor (Th1)
Liquid compress protection
Crankcase heater Input Power W 37 × 2
Compressor protection
Internal protector OFF °C 160
ON °C90
Trip 50Hz 3-10sec/35A
Time
For fan motor protection
Internal OFF °C 135
Protector (49F) ON °C85
Heating control (Heat pump only)
Pressure switch OFF
(Fan speed) (63H2) ON
Cooling control
Heat exchanger
temperature Control Method
thermistor (Th2)
For control protection
Fuse CUT A 6.3
MPa
MPa
50Hz
50Hz
MPa
MPa
Th 40°C ——— High speed
Th 40°C ——— 5 speed step control
4.15
3.05
—
—
1MPa=10.2kgf/cm
2
10
4 Dimensions
4.1. CS-F18DTE5
11
4.2. CU-J18DBE5
12
5 Refrigeration Cycle
5.1. CS-F18DTE5 CU-J18DBE5
13
6 Block Diagram
6.1. CS-F18DTE5
6.2. CU-J18DBE5
14
7 Wiring Diagram
7.1. CS-F18DTE5
15
7.2. CU-J18DBE5
16
8 Operation Instructions
8.1. Wired Remote Control
Name and function of each part
Airflow direction setting display
OFF/ON button
Used to start and stop the operation.
FAN SPEED button
Used to select the fan speed of high (HI), medium (MED), low
(LO) or auto (AUTO).
MODE button
Used to select the operation of AUTO, FAN, COOL, or DRY.
TEMP (UP/DOWN) buttons
Used to select the desired temperature.
AIR SWING (AUTO/MANUAL) buttons
Used to determined the air swing condition, either auto or
manual.
FILTER RESET button
Press to reset the “FILTER RESET” display after washing the filter.
REMOTE
The OFF/ON button cannot be used.
LOCAL
All wired remote control buttons can be used.
Time/time setting display
Check display
Fan speed display
Operation mode selection display
FILTER RESET display
(Appears after the cumulative running time reaches approximately 2,500 hours of operation.)
Temperature setting display (16°C - 31°C)
TEST RUN button*
VENTILATION button*
ECONOMY operation button
Provides Energy saving function
ODOUR WASH button
Provides deodorizing function.
CHECK button
Press this button if the check display is flashing.
TIMER/CLOCK SET buttons
Used to set the timer operation and the current time.
Operation indicator
Lights up when the unit in operation.
NOTES
• Ensure that the correct button is pressed as simultaneous pressing of the multiple buttons will not make the setting correct.
• The illustration above is for explanatory purposes only. The appearance will be different during actual operation.
• Do not operate the remote control with wet hands. Otherwise, electric shock or malfunction may occur.
• Do not press the remote control buttons with sharp object as this may damage the remote control.
• Buttons marked with * are not needed for normal operation. If one of these buttons is pressed by mistake, press the same button
once more to cancel the operation.
• When the power resumed after power failure, the unit will restart automatically with all the previ ous settings preserved by the
memory function. (Auto restart function)
17
8.2. Remote Control - Display
18
8.3. Remote Control - Panel
19
8.4. How to set remote control day and time
• The day and time needs to be set when you turn on the power for th e first time or after a long time has e lapsed since the p owe r
was last turned on.
• The day and time becomes the standard time for all the Timer operations.
• Set the day and time accurately.
• Example : Current Day is Wednesday and Current Time is 8:00.
Note:
• Press “UP button” to increase or “DOWN button” to decrease (interval 1 minute) or hold the button to change the time faster.
• If the “UP or DOWN button” is not pressed for 30 seconds during the day or time setting or if the “SELECT button” is pressed, the
setting at that moment is confirmed and setting will end.
8.5. How To Select The Timer
• 2 types of Timer mode can be selected on the remote control.
- Daily Timer
- Weekly Timer
• These timers cannot be operated simultaneously.
• Select one of these Timers for your convenience.
How to Change the Display
• Press once to change the display from CLOCK to Timer or vice-versa.
• Press more than 3 seconds to change the display from Daily Timer to Weekly Timer or vice-versa.
20
CLOCK Display (To set current Day and Time)
Note:
• The above display is shown if no valid timer setting is made.
• If valid timer setting is made.
- and setting will be displayed.
- If you want to check the current time and day, press “MODE button” once.
(However, after a few seconds, the display will change back to and the setting)
8.6. Daily Timer Setting
•Display
• How to Set Daily Timer
- You can set only “ON” or only “OFF” or “ON” and “OFF” in a day.
1. Change Display
Press “MODE button” to change the display to daily timer.
2. ON-Timer, OFF-Timer and select Time
Press “SELECT button”; ON-Timer setting will be displayed.
Press “UP or DOWN button” to select the desired time, (Example: ON 9:00), then press “SET button” to confirm the
selected desired time.
Or press “CANCEL button” if you do not want any setting for ON-Timer.
Then OFF-Timer setting will be displayed.
Press “UP or DOWN button” to select the desired time, (Example: OFF 18:30), then press “SET button” to confirm
the selected desired time.
Or press “CANCEL button” if you do not want any setting for ON-Timer.
Note:
• The setting timer will be activated everyday.
• Timer nearer to the current time will be activated first.
21
Final Display of Daily Timer:
8.7. Weekly Timer Setting
• Display
• How to Set Weekly Timer
- You can set the Timer for 1 week (Monday to Sunday) with 6 programs per day.
- ON-Timer can be set together with your desired temperature. However, this temperature will be used continuously.
- Cannot set 2 programs with same time setting in a day.
- You also may select Collective - many days with same time setting or Individual
- single/one day setting.
1. Change Display
Press “MODE button” to change the display to weekly timer.
2. Select Day (please refer to next page for example of setting)
You may select Collective or Individual day setting.
• Collective day setting.
Press “SELECT button”: display will show day selection setting.
Press “UP or DOWN button” to select the day. Then press “SET button” to delete triangle
mark (deselect) or add triangle mark (select).
(Triangle mark on top of each day indicates the day to be selected).
Repeat these steps if you want to deselect or select many days.
To confirm the selected days, press the “SELECT button”.
• Individual day setting.
Press “UP or DOWN button” to select the day.
Then press “SELECT button”.
3. Select Time (please refer to next page for example of setting)
For 1st program setting.
Press “UP or DOWN button” to select ON or OFF.
Then press “SET button” to confirm.
Press “UP or DOWN button” again to select the desired time.
(If you want to set them together with your desired temperature, press “TEMP UP/DOWN button”
to select the temperature).
Then press “SET button” to confirm.
Or press “CANCEL button” if you do not want to set any time.
For 2nd ~ 6th program you may refer to the above step.
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For example , if you want to set:
A - Monday to Friday: Same time, 1st program ON 9:00 & 2nd program OFF 16:00.
B - Only Wednesday: Additional 3rd program OFF 12:30 & 4th program ON 13:30.
C - Only Saturday: 1st program ON 10:00 with 20°C & 2nd program OFF 14:00.
D - Sunday: Holiday. No need to set any Timer.
• To set A (Monday to Friday - Collective day setting)
Press “SELECT button”
To select Monday to Friday, deselect Saturday and Sunday by pressing “UP or DOWN button” to Saturday, press
“SET button” (triangle mark on top of Saturday will disappear)
Follow the same step to deselect Sunday.
Ensure triangle mark appears on top of Monday ~ Friday.
- To confirm the selected days, press “SELECT button”.
To set the time, please refer to step 3. Select time at page 22.
- 1st program - select ON and desired time to 9:00.
2nd program - select OFF and desired time to 16:00.
3rd ~ 6th program - press “CANCEL button”.
• To set B (Wednesday - Individual day setting)
- Press “UP or DOWN button” to select WED (Wednesday).
Then press “SELECT button”.
To set the time, please refer to step 3. Select time at page 22.
- 1st program - press “SET button” twice (confirm ON and 9:00)
2nd program - also press “SET button” twice. (Confirm OFF and 16:00)
3rd program - select OFF and desired time to 12:30
4th program - select ON and desired time to 13:30
5th ~6th program - press “CANCEL button”
• To set C (Saturday - Individual day setting)
- Follow the same step as above.
To set the time, please refer to step 3. Select time at page 22.
- 1st program - select ON, desired time to 10:00 and desired temperature to 20°C.
2nd program - select OFF and desired time to 14:00.
3rd ~ 6th program - press “CANCEL button”.
- Final Display for Weekly timer may show as:
(Display is showing, 9:00 ON - Timer on Wednesday will be activated next because it is nearest the current
day/time.)
Note:
• Timer that has setting nearest to current time and day will be activated first.
• To check the setting timer, press “SELECT button”, then “UP or DOWN button” to select day. The display will show each program
for the selected day.
• To reset the setting for all, press “SELECT button”, then ensure all day setting with triangle mark. Then press “CANCEL butto n”
for all the programs.
23
8.8. Wireless Remote Control
Name and function of each part
Address number display
Operation selection display
OFF/ON button
Used to start and stop the operation.
ODOUR WASH button
FILTER RESET button
Press to cancel the “FILTER” indicator light on the control panel.
FAN SPEED button
Used to select the fan speed of high (HI), medium (MED), low
(LO) or auto (AUTO).
SET button*
Local setting function.
Transmitter
Transmits the remote control signal.
Airflow direction setting display
Fan speed display
Temperature setting display (16°C - 31°C)
Time/time setting display
Shows the timer operation setting time or the current time.
ADDRESS SET button*
Used to change the address setting when using more than one
indoor unit.
RESET button
Pressing this button will clear all the settings from memory.
You will then need to make the settings again.
TIMER/CLOCK SET buttons
Used to set the timer operation and the current time.
AIR SWING (AUTO/MANUAL) buttons
Used to determine the air swing condition, either auto or manual.
MODE button
Used to select the operation of AUTO, FAN, COOL or DRY.
TEMP (UP/DOWN) buttons
Used to select the desired temperature.
ECONOMY operation button
NOTES
• Ensure that the correct button is pressed as simultaneous pressing of the multiple buttons will not make the setting correct.
• The illustration above is for explanatory purpose only. The appearance will be different during actual operation.
• If using the wireless remote control in conjunction with the wired remote control, the settings made from the wireless remote control will appear on the wired remote control display (except when making timer settings).
• Buttons marked with * are not needed for normal operation. If one of these buttons is pressed by mistake, press the same button
once more to cancel the operation.
• When the power resumed after power failure, the unit will restart automatically with all previous settings preserved by the
memory function. (Auto restart function)
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9 Operation Details
9.1. Cooling Operation
• Cooling operation can be set using remote control.
• This operation is applied to cool down the room temperature reaches the setting temperature set on the remote control.
• Cooling Operation Time Diagram.
9.2. Soft Dry Operation
• Soft Dry Operation can be set using remote control.
• Soft Dry operation is applied to dehumidify the room.
• When operation begins, the fan speed is fixed at Low speed while cool ing operation is runnin g until reaches the remote co ntrol
setting temperature.
9.3. Auto Operation
• Automatic Mode can be set using remote control.
• This operation starts to judge the intake air temperature, setting temperature, and outdoor piping temperature. Then the u nit
starts to operate at determined operation mode.
9.4. Fan Operation
• Fan operation can be set using remote control.
• The indoor fan is operated at High, Medium or Low speed according to remote control setting.
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9.5. Normal Control
9.5.1. Cooling Indoor Fan Control
• Manual Fan Speed
Operation starts at High, Medium or Low speed set by remote control.
• Auto Fan Speed
When operation start, or shifting to thermostat ON condition from thermostat OFF condition, indoor fan operates as below.
Thermostat & Compres-
sor ON/OFF
Time 40 sec. 50 sec. - 20 sec. 120 sec. 20 sec. 40 sec. 50 sec. Cooling Auto Off Lo Hi Lo Off Lo Off Lo Me
Soft Dry Auto Off Lo Lo Lo Off Lo Off Lo Lo
Thermostat &
Compressor ON
Thermostat &
Compressor OFF
Thermostat &
Compressor ON
9.5.2. Louver control
• When power is on, at the same time, louver initialize 2 times.
• During operation, stopping, thermostat is off condition, louver angle change as below table by manual setting or auto se tting of
remote controller.
Remote controller setting Manual Auto
Operation mode Display
Set 1
Fan 20° 35° 50° 70° 20° - 70°
Cooling Normal 20° 35° 50° 70° 20° - 70°
(fan) Dew control 35°
Thermostat off 20° 35° 50° 70° 20° - 70°
Normal 35°
Soft Dry Dew control 35°
Thermostat off 20° 35° 50° 70° 20° - 70°
Operation mode judge 20° 35° 50° 70° 20°
Stop mode 70°
Set 2
Set 3
Set 4
Piping temp (heating)
ABC
9.5.3. Cooling Outdoor Fan Control
• During cooling operation, outdoor fan speed changes according to outdoor pipe temp erature.
• The fan speed is controlled by the timing of turning the outdoor fan ON and OFF within an interval.
• When outdoor pipe temperature increase, interval timing increased.
• Outdoor fan ON time is a variable with the range of 200ms to 2000ms.
• After 2 minutes, the outdoor pipe temperature is detected and the outdoor unit fan speed is changed automatically.
26
9.6. Operation Control
9.6.1. Odour Cut Control
• Odour cut operation removes the odour generated at indoor heat exchanger by usi ng drain water come out from indoor heat
exchanger.
• Press “Odour” button at remote control to enable odour cut operation.
• Odour cut operation starts when compressor or thermostat is on.
Thermostat & Compres-
sor ON/OFF
Time 40 sec. 50 sec. - 20 sec. 120 sec. 20 sec. 40 sec. 50 sec. -
Cooling Off Lo Normal
Soft Dry Off Lo Lo Lo Off Lo Off Lo Lo
Thermostat &
Compressor ON
Operation
Thermostat &
Compressor OFF
Lo Off Lo Off Lo Normal
Thermostat &
Compressor ON
Operation
9.6.2. Energy Saving
• During Operation, press "Economy" button at remote control to enable Energy Saving Operation.
• The air conditioner judges the stable condition, where the di fferent between indoor suction temp erature and setting temperatu re
is 1°C for 30 minutes and moderately shifts the set temperature in 0.5°C steps (Maximum 2°C) to control energy saving operation.
• If temperature different is out of range, energy save operation will not start.
• Energy Save Operation is canceled by pressing the "Economy" button again.
Energy save control time chart
9.6.3. Dew Form Prevention Control
• During Cooling or Soft Dry operation, if out door temperature is less than 30°C, and indoor fan speed is low or auto setting, indoor
heat exchanger temperature become lower, dew form prevention control start to prevention dew form at indoor discharge grille.
• When indoor pipe temperature decrease, the cooling capacity will be reduced and the louver angle will be fixed at certain angle.
9.6.4. Freeze Prevention Control
• After compressor starts operation for 4 minutes, the outdoor unit will stop its operation if indoor pipe temperature falls below 0°C
for 6 minutes.
• After 3 minutes stops, compressor restarts op eration if indoor pipe temperature is 6°C or more.
• This phenomenon is to protect the indoor heat exchanger from freezing and to prevent higher volume of refrigerant in liquid from
returning to the compressor.
9.6.5. Time Delay Safe Control
• The compressor will not start for three minutes after stop of operation.
9.6.6. Outdoor Fan Remaining Heat Removal Control
• When compressor stop, outdoor fan operates at High speed for 1 minute to remove the remaining heat.
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9.6.7. Thermostat Control
• Depending on differences between room temperature and setting temperature, compressor operation is decided and starts operation.
• If temperature difference matches values shown below, thermostat switches off.
Cooling Mode -1.5°C
Soft Dry Mode -2.5°C
9.7. Protection Control
9.7.1. Outdoor Low-pressure Protection Control
• The purpose of low-pressure protection control is gas leakage detection control.
• The low-pressure protection control starts when low-pressure switch is activated less than 15 minutes after compressor startup.
• During this protection control, compressor is shut down, indoor unit is set to thermo-off status.
• After 6 occasions, suction pressure error is displayed; all operation stopped except outdoor fan remaining heat removal control.
9.7.2. Outdoor High-pressure Protection Control
• The high-pressure protection control starts when high-pressure switch is activated less than 15 minutes after compressor startup.
• During this protection control, compressor is shut down. And indoor unit is set to thermo-off status.
• After 6 occasions, high-pressure protection error is displayed; all operation stopped except outdoor fan remaining he at remova l
control.
9.7.3. Discharge Temperature Protection Control
• The discharge temperature protection control starts when abnormal compressor temperature 115°C is detected when outdoor
unit is operating in cooling operation.
• During this protection control, compressor is shut down. And indoor unit is set to thermo-off status.
• After 6 occasions, high-pressure protection error is displayed; all operation stopped except outdoor fan remaining he at remova l
control.
9.7.4. Over Current Protection Control
• The purpose of over current protection control is to protect the air conditioner fro m over current.
• The over current protection control starts when input current from CT is maintained at 20A or more for 2 seconds when the outdoor unit is starting up or during cooling operation.
• During this protection control, compressor is shut down. And indoor unit is set to thermo-off status.
• After 4 occasions, over current protection error is displayed; all operation stopped exce pt outdoor fan remaining heat removal
control.
9.7.5. CT Disconnection Detection Control
• CT disconnection detection control detects if the CT sensor works normally.
• The CT disconnection detection activates when:
- CT input value is maintained at compressor shutdown status (1.5A or less) consecutively for 2 seconds when the compressor
is operating.
- During this condition, compressor is shut down and indoor unit is set to thermo-off status.
- After 4 occasions, CT sensor error is displayed; all operation stopped except outdoor fan remaining heat removal control.
- CT input value is maintained at compressor operation status (5A or more) consecutively for a period of 60 seconds when the
compressor is shut down.
- During this condition, CT sensor error is displayed.
9.7.6. Connection Capacity Protection Control
• The purpose of connection capacity protection control is to ens ure the total capacity of connected indoor units is within acceptable range.
Model Number Min. Capacity (kW) Max. Capacity (kW) Model Number Min. Capacity (kW) Max. Capacity (kW)
CU-J14DBE5 5.3 6.9 CU-B28DBE8 6.3 9.8
CU-J18DBE5 5.3 6.9 CU-B34DBE8 7.3 12.3
CU-J24DBE5 5.3 6.9 CU-B43DBE8 10.2 13.8
CU-J28DBE5 6.3 9.8 CU-B50DBE8 12.7 15.8
CU-J34DBE5 7.3 12.3
• During this protection control, connection capacity error is displayed; all operations stopped.
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9.7.7. Sensor Disconnection Detection Control
• The sensor disconnection detection control activates when the following condition comply:
Sensor Detection Threshold Duration (Sec.) Detection Condition
Discharge Temperature < -4.5°C or 201.8°C 5 Other than compressor start control
and compressor ON
Outdoor Heat Exchanger < -50.5°C or 103.7°C 5 Regularly
• During sensor disconnection, sensor error is displayed; all operations stops except outdoor fan remaining heat removal control.
9.7.8. High-pressure Switch Disconnection Error Detection Control
• High-pressure switch disconnection is detected when high-pressure switch input continuously open for 1 minutes while the compressor shutdown.
• During this error, high-pressure switch error is displayed.
9.7.9. Low-pressure Switch Disconnection Error Detection Control
• Low-pressure switch disconnection is det ected when lo w-pressure switch in put continuou sly open fo r 1 min utes while compressor shutdown.
• During this error, low-pressure switch error is displayed.
9.8. Test Run
• Test run is necessary after installation is completed.
• To enable forced cooling test run, at outdoor PCB, set the DS1 to position below:
• To enable forced heating test run, at outdoor PCB, set the DS1 to position below:
• Press Test Run button at out door pcb for 1 second.
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10 Installation Instruction
10.1. Pipe length
• CORRECTION OF CAPACITIES
1. Correction of capacities according to the connecting pipe length.
The data of rated capacities (marked on the name plate) are based on 7.5 meters connecting pipe and horizontal installation.
2. For other pipe length of other installation multiply by the following correction factor to determine the revised cooling capacity.
Piping Size / Length & Elevation
Model No. Piping size Piping
length
(A)
Liquid /
High
R
Cassette 4
type 1 CS-F18DTE5 6.35 3-ways 12.70 3-ways 30 20 20 20 20
0
A
Valve Gas /
Low
Valve Max(m) Max(m) Max(m) Max(m) (g/m)
Piping
elevation
(B)
Piping
elevation
(C)
Piping
Chargeless
Add
Refrigerant
Note :
Piping elevation B = outdoor unit installed at top
Piping elevation C = outdoor unit installed at bottom
10.2. Refrigerant additional charge
1. Piping installation by standard piping
• At the time of shipment from the factory, this unit is charged with enough refrigerant for an equivalent pipe leng th of 20m.
(Refer the following table )
But when the piping length exceeds 20m, additional charge is required according to the followin g table.
Example:
CU-J18DBE5
In case of 30m long pipe (one way), the amount of refrigerant to be replenished is: (30 - 20) x 20 = 200g
Model Name Standard piping specification
Liquid piping
(dia.mm)
CU-J18DBE5 6.35 12.7 20 20
Gas piping
(dia.mm)
Gas chargeless
length (m)
Additional gas
volume (g/m)
30
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