Comfort Star CSA36CD User manual

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On/Off
NO.
MODEL
NO.
MODEL
1
CSA36CD
Split-Type Air Conditioner

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This manual is for professional
maintenance personnel only

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CONTENTS
Part I : Technical Information ................................... Error! Bookmark not defined.
1. Summary ............................................................................................................ 4
1-1 Appearance.........................................................................................................................4
1-2 Model List............................................................................................................................7
2. Outline Dimension Diagram ................................................................................ 8
2-1 Indoor Unit...........................................................................................................................8
2-2 Outdoor Unit..................................................................................................................... 10
3. Specification sheet ..............................................................................................12
4. Function and Control .........................................................................................14
4-1 L-Style............................................................................................................................... 18
5. Refrigerant System Diagram ..............................................................................41
5-1 Cooling Only.......................................................................................................................41
5-2 Cooling & Heating....................................................................Error! Bookmark not defined.
6. Electrical Part............................................................................................................45
6-1 Wiring Diagram................................................................................................................. 45
6-2 PCB Printed Diagram........................................................................................................ 46
Part II : Installation and Maintenance ............................................................... 47
7. Main Tools for Installation and Maintenance.......................................................47
8. Installation.........................................................................................................48
8-1 Notes for Installation........................................................................................................ 48
8-2 Installation of Indoor Unit................................................................................................. 49
8-3 Installation of outdoor Unit............................................................................................... 52
8-4 Check after installation and test operation...................................................................... 55
9. Maintenance ......................................................................................................57
9-1 Troubleshooting Guide ..................................................................................................... 57
9-2 Troubleshooting for Normal Malfunction .......................................................................... 68
10. Exploded Views and Parts List................................................................................75
10-1 Indoor Unit ..................................................................................................................... 75
10-2 Outdoor Unit....................................................................................................................76
11. Removal Procedure ..........................................................................................77
11-1 Indoor Unit ..................................................................................................................... 77
11-2 Outdoor Unit................................................................................................................... 83
Appendix...............................................................................................................89
Common Sensor R-T Analysis Table...................................................................................... 89
Part I : Technical Information

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1. Summary
1-1 Appearance
Indoor Unit
LC
Outdoor Unit
36K
Note: The outdoor grille can be replaced.

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2. Outline Dimension Diagram
The following data is for reference only and the actual size may vary.
2-1Indoor Unit（Unit：mm）
2-2Outdoor Unit（Unit: mm）

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4. Function and Control
4-1 H-Style
1) Remote Controller Introduction
Introduction for Buttons on Remote Controller
1. ON/OFF
* Press this button to turn on/off the unit.
* This will clear the existing timer and SLEEP settings.
2.℃/℉
Note：
All the figures above are the
displays after being initially
electrified or re-electrified after
power off. In actual operations,
the remote controller screen
displays related items only.
Some functions are optional
and don’t work according to
the model.

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* Press this button to set the temperature display to Fahrenheit, which is displayed by
default in Celsius. The “℃” will not be displayed on the LCD.
* Press this button again to restore the temperature display to Celsius.
Note: Temperature display in Fahrenheit is not available for some models. When
temperature is displayed in Fahrenheit on the remote controller, it might be in Celsius
on the unit, the function and operation of which will not be affected.
3. SPEED
* Press this button, you can select the motor speed as follows:
Low → Mid → High → Auto
Note: AUTO air speed is not available in fan mode.
4. DISPLAY
* Press this button to turn on/off the display. This is for the convenience of users who
are unconformable sleeping with the backlight on.
5. iFEEL
* Press this button to set the temperature display on the remote controller to ambient
temperature and press this button again to set it to preset temperature.
6. TIMER
* With the unit ON, press this button to set OFF timer or with it OFF to set ON timer.
* Press this button once, a "ON(OFF)" will flash. Press “▲”or “ ▼” to set the number
of hours in which the unit will be turned ON/OFF, with an interval of 0.5 hour if less
than 10 hours, or 1 hour if longer than 10 hours and a range of 0.5-24 hours.
* Press it again to confirm the setting the "ON (OFF)" will stop flashing.
* If the timer button is not pressed longer than 10 seconds after the "ON (OFF)" start
flashing, the timer setting will be exited.
* If a timer setting is confirmed, pressing this button again will cancel it.
Note: When a ON timer is set, all function buttons (except SLEEP DISPLAY and
iFEEL can't be set ) are valid and when the ON time set is up, the unit will operate as
preset.
7. This button has two functions.
a. HEALTH
* Press this button with the unit ON to activate health related functions, such as
negative ion, electrostatic precipitation, PM2.5 removal, etc, depending on the actual
configuration of each model.
* Press this button again to deactivate the HEALTH function.
b. iCLEAN
* Press this button with the unit OFF, the remote controller will display "CL" and the
unit will automatically clean dust off the evaporator and dry it, to increase the cooling
and heating efficiency.
* The iCLEAN function runs for approximately 30 minutes, during which if the unit
is turned on with the remote controller or this button is pressed again, the iCLEAN
will be deactivated.
8. ▲ or ▼
* Each time the "▲" is pressed, the temperature setting will increase by 1℃ and each
time the "▼" is pressed, it will decrease by 1℃.
* a. lf the type of controller remote is YKR-H/101E or YKR-H/102E setting
temperature range is 16℃ ~32℃(60℉~90℉).
b. lf the type of controller remote is YKR-H/132E setting temperature range is 20℃
~28℃ (68℉~82℉).

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c. Some area don't have the YKR-H/132E.Local regulation and actual object shall
prevail.
Note: The temperature cannot be set in AUTO or Fan mode, thus these two buttons
are not functional.
9. TURBO
* Press this button only in COOL or HEAT mode to set TURBO on or off to speedy
the cooling or heating.
* When TURBO is on the air speed is HIGH.
* When TURBO is off the air speed will restore to previous status.
10. MODE
* Press this button you can select the running mode as follows:
AUTO → COOL → DRY → HEAT →FAN
Note: HEAT mode is not available for cool only units.
11. SLEEP
* Press this button to enter SLEEP mode, which the unit will exit after 10 hours of
continuous operation and restore to the previous status.
Note: The SLEEP function cannot be activated in fan mode.
12. SWING
* Press this button to activate up/down swing and press it again to fix the swing
position.
13. SWING
* Press this button to activate left/right swing and press it again to fix the swing
position.
14. Anti-F
* The Anti-F functions when the unit is turned off with the remote controller in COOL,
DRY or AUTO mode. It will operate in HEAT mode (Fan mode for cool only units),
with the Indoor Unit motor running with weak flow for 3 minute before stop, to
remove the moisture within the evaporator so as to prevent it from giving bad smell
from mold.
* This function is not set in the factory. You may set it or cancel it any time you want
as follows: With both the unit and the remote controller OFF, point the remote
controller at the unit and press
"Anti-F" button once, the buzzer will sound 5 times after 5 times, indicating this
function is set. Once set, this function will remain valid except when the unit is power
off or until it is canceled.
* To cancel Anti-F:
1. Power off the unit.
2. With both the unit and the remote controller OFF, point the remote controller at the
unit and press this button once, the buzzer will sound 3 times after 5 times, indicating
this function is canceled.
Note:
* With Anti-F activated, it is advised not to turn ON the unit again before it is fully
OFF.
*Anti-F function will be invalid when OFF timer is set.
15.This button has two functions.
a. ELE.H (Optional)
* If this button is pressed in HEAT mode, the electric heating will be turned on/off.

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b. ECO (Optional)
* If this button is pressed in COOL mode, the unit will enter the ECO mode which has
the lowest electricity consumption, and exit it automatically 8 hours after.
* Changing modes or turning off the remote controller will automatically cancel the
ECO function.
* Press ECO button in ECO mode to exit this mode. Note: The ECO mode only works
for inverter units.
2) Introduction for mode settings
★Automatic operation mode
1. Press the "MODE" button, select the automatic operation mode.
2. By pressing the "SPEED" button, you can select the motor speed from LOW, MID,
HIGH, AUTO.
3. Press the "ON/OFF" button, the air-conditioner starts to operate.
4. Press the "ON/OFF" button again, the air-conditioner stops.
Note: In the fan operation mode the temperature settings is non-effective.
★Cooling/Heating operation mode
1. Press the "MODE" button, select the Cooling or Heating operation mode.
2. By pressing the "▲"or "▼"button, you can set the temperature the display changes
as you touch the button.
3. By pressing the "SPEED" button, you can select the motor speed from LOW, MID,
HIGH, AUTO.
4. Press the "ON/OFF" button, the air-conditioner starts to operate.
5. Press the "ON/OFF" button again, the air-conditioner stops.
Note: The cold wind type has no heating function.
★Fan operation mode
1. Press the "MODE" button, select the fan operation mode.
2. By pressing the "SPEED" button, you can select the motor speed from LOW, MID,
HIGH.
3. Press the "ON/OFF" button, the air-conditioner starts to operate.
4. Press the "ON/OFF" button again, the air-conditioner stops.
Note: In the fan operation mode the temperature settings is non-effective.
★Drying operation mode
1. Press the "MODE" button, select the drying operation mode.
2. By pressing the "▲"or "▼"button, you can set the temperature the display changes
as you touch the button.
3. By pressing the "SPEED" button, you can select the motor speed from LOW, MID,
HIGH, AUTO.
4. Press the "ON/OFF" button, the air-conditioner starts to operate.
5. Press the "ON/OFF" button again, the air-conditioner stops.
★Backlight function (for remote controllers with such function only)
The remote controller has a backlight which can be turned on by pressing any button
for the convenience of operation in darkness. The backlight will be automatically
turned off if there is no operation within 10 seconds.
3) Precautions
• Before first time use of the remote controller install the batteries and ensure the
"+"and "_" poles are correctly positioned.

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• Ensure the remote controller is pointed to the signal receiving Window and that
there is no obstruction in between and the distance is 8m at the maximum.
• Do not let the remote controller drop or fling it at will.
Do not let any liquid in the remote controller.
Do not expose the remote controller directly to the sunlight or excessive heat.
• If the remote controller does not function normally remove the batteries for 30
second before reinstall them. If that doesn't work replace the batteries.
• When replacing the batteries do not mix the new batteries with old ones or mix
batteries of different types which could cause failure of the remote controller.
• If the remote controller is not to be used for a long period of time remove the
batteries first lest the leakage from them may damage the remote controller.
• Properly dispose the discarded batteries.
Note:
1. This is a universal remote controller which provide all the function buttons. Please
understand that some of the buttons may not function, depending on the specific air
conditioner you have purchased. (If a specific function is not available on the air
conditioner, pressing the corresponding button will simply have no respond.)
2. HEAT and ELE.H functions are not available for cool only models, thus these two
buttons do not work correspondingly.
Battery use and replacement
1. Slide to open the cover according to the direction indicated by the arrowhead.
2. Insert two brand new batteries (7#) and position the batteries to the right electric
poles (+ & -).
3. Put back the cover.
5. Refrigerant System Diagram
5-1 Cooling Only
Cooling Mode
Indoor Unit
Outdoor Unit

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Cooling Cycle
6. Electrical Part
6.1 Wiring Diagram
Indoor Unit
CSA36CD(I)
Indoor heat exchanger
(Evaporation)
Compressor
(Compression)
Outdoor heat exchanger
(Condensation)
Capillary
(Throttling)
Steam-gas of low pressure
Super cooled liquid of high
pressure
Liquid of low
pressure
(also a little gas)
Gas of high pressure &
temperature

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Outdoor Unit
CSA36CD(O)

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Part II : Installation and Maintenance
7. Main Tools for Installation and Maintenance

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8. Installation
8-1 Notes for Installation
Important Notices
Before installation, please contact with local authorized maintenance center, if
unit is not installed by the authorized maintenance center, the malfunction may
not solved, due to discommodious contact.
The air conditioner must be installed by professionals according to the national
wiring rules and this manual.
To move and install air conditioner to another place, please contact our local
special service center.
Requirements For Installation Position
Avoid places of inflammable or explosive gas leakage or where there are strongly
aggressive gases.
Avoid places subject to strong artificial electric/magnetic fields.
Avoid places subject to noise and resonance.
Avoid severe natural conditions (e.g. heavy lampblack, strong sandy wind, direct
sunshine or high temperature heat sources).
Avoid places within the reach of children.
Shorten the connection between the indoor and outdoor units.
Select where it is easy to perform service and repair and where the ventilation
good.
The outdoor unit shall not be installed in any way that could occupy an aisle,
stairway, exit, fire escape, catwalk or any other public area.
The outdoor unit shall be installed as far as possible from the doors and windows
of the neighbors as well as the green plants.
Requirements for operations at raised height
When carrying out installation at 2m or higher above the base level, safety belts
must be worn and ropes of sufficient strength be securely fasten to the outdoor
unit, to prevent falling that could cause personal injury or death as well as
property loss.
Requirements of the mounting structure
The mounting rack must meet the relevant national or industrial standards in
terms of strength with welding and connection areas rustproofed.
The mounting rack and its load carry surface shall be able to withstand 4 times or
above the weight of the unit, or 200kg, whichever is heavier.
The mounting rack of the outdoor unit shall be fastened with expansion bolt.
Ensure the secure installation regardless of what type of wall on which it is
installed, to prevent potential dropping that could hurt people.
Electrical Safety Requirements
Be sure to use the rated voltage and air conditioners dedicated circuit for the
power supply, and the power cord diameter must meet the national requirements.
Be sure to use the rated voltage and air conditioners dedicated
When the maximum current of air conditioner is ≥16A, it must use the air switch
or leakage protection switch equipped with protection devices.
The normal operating range is 90%-110% of the local rated voltage.
The minimum clearance between the air conditioner and the combustibles is 1.5

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m.
The power cable enables communication between the indoor and outdoor units.
You must first choose the right cable size before preparing it for connection.
Grounding Requirements
The air conditioner is the type I electrical appliance and must ensure a reliable
grounding.
Do not connect the grounding wire to a gas pipe, water pipe,lightning rod,
telephone line, or a circuit poorly grounded to the earth.
The grounding wire is specially designed and shall not be used for other purpose,
nor shall it be fastened with a common tapping screw.
Others
The connection method of the air conditioner and the power cord and the
interconnection method of each independent element shall be subject to the
wiring diagram affixed to the machine.
The model and rating value of the fuse shall be subject to the silkscreen on
corresponding controller or fuse sleeve.
8-2 Installation of Indoor Unit
Installation Parts-checking
Packing list of the indoor unit
NO.
Name
Quantity
Unit
1
Indoor Unit
1
Set
2
Remote Controller
1
PC
3
Batteries(7#)
2
PC
4
Instructions
1
Set
5
Drain pipe
1
PC
NOTE:
※All accessories shall be subject to actual packaging material, and if there is any
difference, please understand.
Selection of Installation location
Mounting plate

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1. The wall for installation of the indoor unit shall be hard and firm, so as to prevent
vibration.
2. Use the "+" type screw to fasten the peg board, horizontally mount the peg board
on the wall, and ensure the lateral horizontal and longitudinal vertical.
3. Pull the peg board by hand after the installation, to confirm whether it is solid.
Wall-through Hole
1. Make a hole with an electric hammer or a
water drill at the predetermined position on
the wall for piping, which shall slant
outwardly by 5°-10°.
2. To protect the piping and the cables from
being damaged running through the wall,
and from the rodents that may inhabit in
the hollow wall, a pipe protecting ring shall
be installed and sealed with putty.
Note: Usually, the wall hole is Φ60mm~
Φ80mm. Avoid pre-buried power wire
and hard wall when making the hole.
Route of Pipeline
1. Depending on the position of the unit, the piping may be routed sideway from the
left or the right ( Fig 1 ), or vertically from the back( Fig 2 )(depending on the pipe
length of the indoor unit). In the case of sideway routing, cut off the outlet cutting
stock of the opposite side.
2. The power cord may be routed separately from the piping. Cut off the outlet cutting
stock and then run the power cord through the hole, keeping the remaining part as
a protection from rodents.
Drain pipe connection
1. Remove the mountings and pull the indoor unit pipe out of the housing.
2. Connect the connecting pipe to the indoor unit:
Aim at the pipe center, tighten the Taper nut with fingers, and then tighten the T
nut with a torque wrench, and the direction
is shown in diagram on the right. The torque
used is shown in the following table.

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Tightening torque table
The size of pipe(mm)
Torque(N·m)
Φ6/Φ6.35
15～25
Φ9 /Φ9.5 2
35～40
Φ12/Φ12.7
45～60
Φ15.88
73～78
Φ19.05
75～80
Wrap the Piping
Fixing the Indoor Unit
Fixing the indoor unit
Electric Connection Requirement
● Loosen the screws and remove from the unit.
● Connect the cables respectively to the corresponding
terminals of the terminal board of the indoor unit (see the
wiring diagram), and if there are signals connected to the
plug, just conduct butt joint.
●Ground wire: Remove the grounding screw out of the
electric bracket, cover the grounding wire end onto the grounding screw and screw it
into the grounding hole.
1. Use the insulation sleeve to wrap the joint part the
indoor unit and the connection pipe, and then use
insulating material to pack and seal insulation pipe,
to prevent generation of condensate water on the
joint part.
2. Connect the water outlet with drain pipes, and
make the connection pipe, cables, and the drain hose
straight.
3. Use plastic cable ties to wrap the connecting
pipes, cables and drain hose. Run the pipe sloping
downward.
1. Hang the indoor unit on the peg board, and move
the unit from left to right to ensure that the hook is
properly positioned in the peg board.
2. Push toward the lower left side and the upper right
side of the unit toward the peg board, until the hook
is embedded in the slot and makes a "click" sound.

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● Fix the cable reliably with fasteners (Pressing board).
● Put the E-parts cover back in its original place and fasten it with screws.
NOTE:
※This manual usually includes the wiring mode for the different kind of A/C.
We cannot exclude the possibility that some special type of wiring diagrams
are not included.
※The diagram are for reference only. If the entity is difference with this wiring
diagram, please refer to the detailed wiring diagram adhered on the unit which
you purchased.
8-3 Installation of outdoor Unit
Packing list of the outdoor unit
NO.
Name
Quantity
Unit
1
Outdoor Unit
1
Set
2
Connecting pipe
2
PC
3
Plastic Strap
1
ROLL
4
Pipe Protection Ring
1
Set
5
Luting (putty)
1
PACKET
Selection of Installation location
Wiring Diagram

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Install the connection pipe
Piping length
Amount of refrigerant to be added
≤5M
Not needed
5- 15M
CC≤12000Btu
20g/m
CC≥18000Btu
30g/m
Note: This table is for reference only.
Wiring Connection
Wiring diagram
Connect the Outdoor Unit with Connecting Pipe: Aim the
counter-bore of the connecting pipe at the stop valve, and
tighten the Taper nut with fingers. Then tighten the Taper
nut with a torque wrench.
★When prolonging the piping, extra amount of refrigerant
must be added so that the operation and performance of the
air conditioner will not be compromised.
1. Loosen the screws and remove E-parts cover from the unit.
2. Connect the cables respectively to the corresponding terminals of the terminal board of
the outdoor unit (see the wiring diagram),and if there are
signals connected to the plug, just conduct butt joint.
3. Ground wire: Remove the grounding screw out of the
electric bracket, cover the grounding wire end onto the
grounding screw and screw it into the grounding hole.
4. Fix the cable reliably with fasteners (Pressing board).
5. Put the E-parts cover back in its original place and
fasten it with screws.

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NOTE:
※ This manual is usually includes the wiring mode for the different kind of A/C. We
cannot exclude the possibility that some special type of wiring diagrams are not
included.
※ The diagram are for reference only. If the entity is difference with this wiring
diagram, please refer to the detailed wiring diagram adhered on the unit which you
purchased.
Expelling the air
★Outdoor unit refrigerant discharging method
After the pipe side connection is complete, proceed as follows.
★Vacuum Pumping Method (R410A refrigerant evacuation must use the
Wiring Diagram