Panasonic CS-E9SD3UAW User manual

© Panasonic Corporation 2016
Order No: PAPAMY1604052CE
Indoor Unit Outdoor Unit
CS-E9SD3UAW
CS-E12SD3UAW
CS-E18SD3UAW
CU-E9SD3UA
CU-E12SD3UA
CU-E18SD3UA
Destination
USA
This service information is designed for experienced repair technicians only and is not designed for use by the general public.
It does not contain warnings or cautions to advise non-technical individuals of potential dangers in attempting to service a product.
Products powered by electricity should be serviced or repaired only by experienced professional technicians. Any attempt to service
or repair the product or products dealt with in this service information by anyone else could result in serious injury or death.
WARNING
PRECAUTION OF LOW TEMPERATURE
In order to avoid frostbite, be assured of no refrigerant leakage during the installation or repairing of refrigerant circuit.

2
TABLE OF CONTENTS
PAGE PAGE
1.Safety Precautions .............................................3
2.Specifications .....................................................5
3.Features.............................................................14
4.Location of Controls and Components..........15
4.1Indoor Unit ..................................................15
4.2Outdoor Unit ...............................................15
4.3Remote Control ..........................................15
5.Dimensions .......................................................16
5.1Indoor Unit ..................................................16
5.2Outdoor Unit ...............................................17
6.Refrigeration Cycle Diagram ...........................18
6.1CS-E9SD3UAW CU-E9SD3UA..................18
6.2CS-E12SD3UAW CU-E12SD3UA..............19
6.3CS-E18SD3UAW CU-E18SD3UA..............20
7.Block Diagram ..................................................21
7.1CS-E9SD3UAW CU-E9SD3UA
CS-E12SD3UAW CU-E12SD3UA..............21
7.2CS-E18SD3UAW CU-E18SD3UA..............22
8.Wiring Connection Diagram ............................23
8.1Indoor Unit ..................................................23
8.2Outdoor Unit ...............................................24
9.Electronic Circuit Diagram ..............................26
9.1Indoor Unit ..................................................26
9.2Outdoor Unit ...............................................27
10.Printed Circuit Board .......................................29
10.1Indoor Unit ..................................................29
10.2Outdoor Unit ...............................................30
11.Installation Instruction.....................................33
11.1Indoor Unit ..................................................35
11.2Outdoor Unit ...............................................43
12.Operation and Control .....................................48
12.1Basic Function ............................................48
12.2Quiet Operation (Cooling Mode/Cooling
Area of Soft Dry Mode)...............................51
12.3Powerful Mode Operation...........................52
12.4Timer Control..............................................52
12.5Auto Restart Control...................................52
12.6Indication Panel..........................................52
12.7Electric Heater Control 1 ............................53
12.8Electric Heater Control 2 ............................54
13.Protection Control............................................55
13.1Protection Control For All Operations.........55
13.2Protection Control For Cooling & Soft Dry
Operation....................................................56
13.3Protection Control for Heating
Operation....................................................58
14.Servicing Mode .................................................60
14.1TEST RUN OPERATION (FOR PUMP
DOWN/SERVICING PURPOSE) ...............60
14.2Auto OFF/ON Button ..................................61
14.3Cooling Only Operation (Single connection
Only, Multi connection please refer to Multi
outdoor manual) .........................................62
14.4Remote Controller Room Temperature
Thermoshift Control ....................................63
15.Troubleshooting Guide....................................67
15.1Refrigeration Cycle System........................67
15.2Relationship Between the Condition of the
Air Conditioner and Pressure and Electric
Current........................................................68
15.3Breakdown Self Diagnosis Function...........69
15.4Error Codes Table ......................................70
15.5Self-diagnosis Method................................72
16.Disassembly and Assembly Instructions ......96
16.1Indoor Electronic Controller, Blower Fan,
Fan Motor & Drain Motor Removal
Procedure. ..................................................96
16.2Outdoor Electronic Controller Removal
Procedure ...................................................99
17.Technical Data ............................................... 101
17.1Technical data provided are based on the
air conditioner running under free
frequency................................................. 101
17.2Technical data provided are based on the
air conditioner running under rated
frequency................................................. 104
17.3Fan Performance..................................... 107
18.Service Data ................................................... 110
18.1Cool Mode Outdoor Air Temperature
Characteristic........................................... 110
18.2Heat Mode Outdoor Air Temperature
Characteristic........................................... 113
18.3Piping Length Correction Factor.............. 116
19.Exploded View and Replacement Parts
List .................................................................. 118
19.1Indoor Unit ............................................... 118
19.2Outdoor Unit ............................................ 120

3
1. Safety Precautions
Read the following “SAFETY PRECAUTIONS” carefully before installation.
Electrical work must be installed by a licensed electrician. Be sure to use the correct rating of the power plug and main circuit
for the model to be installed.
The caution items stated here must be followed because these important contents are related to safety. The meaning of each
indication used is as below. Incorrect installation due to ignoring of the instruction will cause harm or damage, and the
seriousness is classified by the following indications.
WARNING This indication shows the possibility of causing death or serious injury.
CAUTION This indication shows the possibility of causing injury or damage to properties only.
The items to be followed are classified by the symbols:
Symbol with white background denotes item that is PROHIBITED.
Symbol with dark background denotes item that must be carried out.
Carry out test running to confirm that no abnormality occurs after the installation. Then, explain to user the operation, care
and maintenance as stated in instructions. Please remind the customer to keep the operating instructions for future reference.
WARNING
1. Do not install outdoor unit near handrail of veranda. When installing air-conditioner unit on veranda of a high rise building, child
may climb up to outdoor unit and cross over the handrail causing an accident.
2. Do not use unspecified cord, modified cord, joint cord or extension cord for power supply cord. Do not share the single outlet
with other electrical appliances. Poor contact, poor insulation or over current will cause electrical shock or fire.
3. Do not tie up the power supply cord into a bundle by band. Abnormal temperature rise on power supply cord may happen.
4. Do not insert your fingers or other objects into the unit, high speed rotating fan may cause injury.
5. Do not sit or step on the unit, you may fall down accidentally.
6. Keep plastic bag (packaging material) away from small children, it may cling to nose and mouth and prevent breathing.
7.
When installing or relocating air conditioner, do not let any substance other than the specified refrigerant, eg. air etc mix into
refrigeration cycle (piping). Mixing of air etc will cause abnormal high pressure in refrigeration cycle and result in explosion,
injury etc.
8. Do not add or replace refrigerant other than specified type. It may cause product damage, burst and injury etc.
9.
For R410A model, use piping, flare nut and tools which is specified for R410A refrigerant. Using of existing (R22) piping, flare nut
and tools may cause abnormally high pressure in the refrigerant cycle (piping), and possibly result in explosion and injury.
Thickness for copper pipes used with R410A must be more than 1/32" (0.8 mm). Never use copper pipes thinner than
1/32" (0.8 mm).
It is desirable that the amount of residual oil less than 0.0008 oz/ft (40 mg/10 m).
10. Engage authorized dealer or specialist for installation. If installation done by the user is incorrect, it will cause water leakage, electrical
shock or fire.
11. Install according to this installation instructions strictly. If installation is defective, it will cause water leakage, electrical shock or fire.
12. Use the attached accessories parts and specified parts for installation. Otherwise, it will cause the set to fall, water leakage, fire or
electrical shock.
13. Install at a strong and firm location which is able to withstand the set’s weight. If the strength is not enough or installation is not properly
done, the set will drop and cause injury.
14. For installation work, follow all electrical, building, plumbing, local codes, regulations and these installation instructions. If electrical circuit
capacity is not enough or a defect is found in electrical work, it will cause electrical shock or fire.
15.
Do not use spliced wires for indoor/outdoor connection cable. Use the specified indoor/outdoor connection cable, refer to instruction
CONNECT THE CABLE TO THE INDOOR/OUTDOOR UNIT and connect tightly for indoor/outdoor connection. Clamp the cable so that
no external force will have impact on the terminal. If connection or fixing is not perfect, it will cause heat-up or fire at the connection.
16. Wire routing must be properly arranged so that control board cover is fixed properly. If control board cover is not fixed perfectly, it will
cause fire or electrical shock.
17.
This equipment must installed with an Earth Leakage Circuit Breaker (ELCB) or Ground Fault Current Interrupter (GFCI) or Appliance
Leakage Current Interrupter (ALCI) that has been certified by an NRTL Certified Testing Agency and that is suitable for the voltages and
amperages involved. Otherwise, if may cause electrical shock and fire in case of equipment breakdown.

4
18.
During installation, install the refrigerant piping properly before running the compressor. Operation of compressor without fixing
refrigeration piping and valves at opened condition will cause suck-in of air, abnormal high pressure in refrigeration cycle and result in
explosion, injury etc.
19.
During pump down operation, stop the compressor before removing the refrigeration piping. Removal of refrigeration piping while
compressor is operating and valves are opened will cause suck-in of air, abnormal high pressure in refrigeration cycle and result in
explosion, injury etc.
20. Tighten the flare nut with torque wrench according to specified method. If the flare nut is over-tightened, after a long period, the flare
may break and cause refrigerant gas leakage.
21. After completion of installation, confirm there is no leakage of refrigerant gas. It may generate toxic gas when the refrigerant comes into
contact with fire.
22. Ventilate if there is refrigerant gas leakage during operation. It may cause toxic gas when the refrigerant comes into contact with fire.
23. This equipment must be properly earthed. Earth line must not be connected to gas pipe, water pipe, earth of lightning rod and telephone.
Otherwise, it may cause electrical shock in case of equipment breakdown or insulation breakdown.
CAUTION
1. Do not install the unit at place where leakage of flammable gas may occur. In case gas leaks and accumulates at surrounding
of the unit, it may cause fire.
2. Do not release refrigerant during piping work for installation, re-installation and during repairing a refrigeration parts. Take care
of the liquid refrigerant, it may cause frostbite.
3. Do not install this appliance in a laundry room or other location where water may drip from the ceiling, etc.
4. Do not touch the sharp aluminium fin, sharp parts may cause injury.
5. Carry out drainage piping as mentioned in installation instructions. If drainage is not perfect, water may enter the room and damage the
furniture.
6. Select an installation location which is easy for maintenance.
7.
Power supply connection to the room air conditioner.
Power supply cord shall be UL listed or CSA approved 3 conductor with minimum AWG14 (E9SD3UAW, E12SD3UAW) and AWG12
(E18SD3UAW) wires.
Power supply point should be in an easily accessible place for power disconnection in case of emergency.
In some countries, permanent connection of this air conditioner to the power supply is prohibited.
Fix power supply connection to a circuit breaker for permanent connection.
Use NRTL approved fuse or circuit breaker (rating refers to name plate) for permanent connection.
8. Installation work.
It may take two people to carry out the installation work.

5
2. Specifications
MODEL INDOOR CS-E9SD3UAW
OUTDOOR CU-E9SD3UA
Performance Test Condition ARI
Power Supply
Phase, Hz Single, 60
V 208 230
Min. Mid. Max. Min. Mid. Max.
Cooling
Capacity kW 1.20 2.64 3.00 1.20 2.64 3.00
BTU/h 4100 9000 10200 4100 9000 10200
Running Current A - 3.6 - - 3.2 -
Input Power W 250 690 850 250 690 850
EER W/W 4.80 3.82 3.53 4.80 3.82 3.53
BTU/hW 16.40 13.00 12.00 16.40 13.00 12.00
Power Factor % - 92 - - 94 -
Indoor Noise (H / L / QLo) dB-A 35 / 28 / 25 35 / 28 / 25
Power Level dB 51 / - / - 51 / - / -
Outdoor Noise (H / L / QLo) dB-A 48 / - / - 48 / - / -
Power Level dB 63 / - / - 63 / - / -
Heating
Capacity kW 1.20 3.51 4.14 1.20 3.51 4.14
BTU/h 4100 12000 14100 4100 12000 14100
Running Current A - 5.7 - - 5.1 -
Input Power W 200 1.12k 1.50k 200 1.12k 1.50k
COP W/W 6.00 3.12 2.76 6.00 3.12 2.76
BTU/hW 20.50 10.70 9.40 20.50 10.70 9.40
Power Factor % - 96 - - 97 -
Indoor Noise (H / L / QLo) dB-A 35 / 28 / 25 35 / 28 / 25
Power Level dB 51 / - / - 51 / - / -
Outdoor Noise (H / L / QLo) dB-A 50 / - / - 50 / - / -
Power Level dB 65 / - / - 65 / - / -
Min Circuit Ampacity 15.00
Max. Overcurrent Protection 15.00
Max Current (A) / Max Input Power (W) 7.0 / 1.57k
Starting Current (A) 5.70
SEER/HSPF 20.50 / 10.00

6
MODEL
INDOOR CS-E9SD3UAW
OUTDOOR CU-E9SD3UA
Compressor
Type Hermetic Motor / Rotary
Motor Type Brushless (4-poles)
Output Power 700
Indoor Fan
Type Sirocco
Material GFZ010A / GF20
Motor Type DC Motor (8-poles)
Output Power W 51
Speed
QLo Cool rpm 880
Heat rpm 800
Lo Cool rpm 940
Heat rpm 880
Me Cool rpm 1120
Heat rpm 1090
Hi Cool rpm 1300
Heat rpm 1300
SHi Cool rpm 1380
Heat rpm 1380
Outdoor Fan
Type Propeller Fan
Material PP
Motor Type DC Motor (8-poles)
Output Power W 40
Speed Hi
Cool rpm 830
Heat rpm 780
Moisture Removal L/h (Pt/h) 0.6 (1.3)
Indoor Airflow
QLo Cool m3/min (ft3/min) 9.30 (328)
Heat m3/min (ft3/min) 8.50 (300)
Lo Cool m3/min (ft3/min) 9.90 (350)
Heat m3/min (ft3/min) 9.30 (328)
Me Cool m3/min (ft3/min) 11.70 (413)
Heat m3/min (ft3/min) 11.40 (403)
Hi Cool m3/min (ft3/min) 13.50 (475)
Heat m3/min (ft3/min) 13.50 (475)
SHi Cool m3/min (ft3/min) 14.30 (505)
Heat m3/min (ft3/min) 14.30 (505)
Outdoor Airflow Hi Cool m3/min (ft3/min) 31.0 (1095)
Heat m3/min (ft3/min) 31.0 (1095)
Refrigeration
Cycle
Control Device Expansion Valve
Refrigerant Oil cm3FV50S (320)
Refrigerant Type g (oz) R410A, 980 (34.6)
Dimension
Height (I/D / O/D) mm (inch) 200 (7-7/8) / 542 (21-11/32)
Width (I/D / O/D) mm (inch) 750 (29-17/32) / 780 (30-23/32)
Depth (I/D / O/D) mm (inch) 640 (25-7/32) / 289 (11-13/32)
Weight Net (I/D / O/D) kg (lb) 19 (42) / 37 (82)

7
MODEL
INDOOR CS-E9SD3UAW
OUTDOOR CU-E9SD3UA
Piping
Pipe Diameter (Liquid / Gas) mm (inch) 6.35 (1/4) / 9.52 (3/8)
Standard Length m (ft) 7.5 (24.6)
Length Range (min - max) m (ft) 3 (9.8) ~ 20 (65.6)
I/D & O/D Height Different m (ft) 15 (49.2)
Additional Gas Amount g/m (oz/ft) 20 (0.2)
Length for Additional Gas m (ft) 7.5 (24.6)
Drain Hose Inner Diameter mm/inch 16 / 0.63
Length mm/inch 117.5 / 4.63
Indoor Heat
Exchanger
Fin Material Aluminium (Pre Coat)
Fin Type Slit Fin
Row x Stage x FPI 3 x 12 x 18
Size (W x H x L) mm 590 x 282 x 38.1
Outdoor Heat
Exchanger
Fin Material Aluminium (Blue Coat)
Fin Type Corrugated Fin
Row x Stage x FPI 2 x 24 x 17
Size (W x H x L) mm 36.4 x 504 x 713:684
Power Supply Outdoor Power Supply
Power Supply Cord A Nil
Thermostat Electronic Control
Protection Device Electronic Control
Dry Bulb Wet Bulb
Indoor
Operation
Range
Cooling Maximum °C/°F 32 / 89.6 23 / 73.4
Minimum °C/°F 16 / 60.8 11 / 51.8
Heating Maximum °C/°F 30 / 86.0 - / -
Minimum °C/°F 16 / 60.8 - / -
Outdoor
Operation
Range
Cooling Maximum °C/°F 46 / 114.8 26 / 78.8
Minimum °C/°F -17.8 / 0 - / -
Heating Maximum °C/°F 24 / 75.2 18 / 64.4
Minimum °C/°F -20 / -4 -21 / -5.8
1. Cooling capacities are based on indoor temperature of 27°C Dry Bulb (80.6°F Dry Bulb), 19.0°C Wet Bulb (66.2°F Wet Bulb) and outdoor air
temperature of 35°C Dry Bulb (95°F Dry Bulb), 24°C Wet Bulb (75.2°F Wet Bulb)
2. Heating capacities are based on indoor temperature of 20°C Dry Bulb (68°F Dry Bulb) and outdoor air temperature of 7°C Dry Bulb
(44.6°F Dry Bulb), 6°C Wet Bulb (42.8°F Wet Bulb)
3 Heating low temperature capacity, Input Power and COP measured at 230 V, indoor temperature 20°C (68°F), outdoor 2/1°C (35°F/33.8°F)
4 Heating extreme low temperature capacity, Input Power and COP measured at 230 V indoor temperature 20°C (68°F), outdoor -7/-8°C
(19.4°F/17.6°F)
5. Standby power consumption ≤0.7W (when switched OFF by remote control, except under self protection control).
6. Specifications are subjected to change without notice for further improvement.

8
MODEL
INDOOR CS-E12SD3UAW
OUTDOOR CU-E12SD3UA
Performance Test Condition ARI
Power Supply
Phase, Hz Single, 60
V 208 230
Min. Mid. Max. Min. Mid. Max.
Cooling
Capacity kW 1.20 3.36 3.90 1.20 3.36 3.90
BTU/h 4100 11500 13300 4100 4100 13300
Running Current A - 4.7 - - 4.2 -
Input Power W 250 920 1.15k 250 920 1.15k
EER W/W 4.80 3.64 3.39 4.80 3.64 3.39
BTU/hW 16.40 12.50 11.55 16.40 12.50 11.55
Power Factor % - 94 - - 95 -
Indoor Noise (H / L / QLo) dB-A 35 / 28 / 25 35 / 28 / 25
Power Level dB 51 / - / - 51 / - / -
Outdoor Noise (H / L / QLo) dB-A 49 / - / - 49 / - / -
Power Level dB 64 / - / - 64 / - / -
Heating
Capacity kW 1.20 4.05 4.77 1.20 4.05 4.77
BTU/h 4100 13800 16300 4100 13800 16300
Running Current A - 6.3 - - 5.6 -
Input Power W 200 1.25k 1.71k 200 1.25k 1.71k
COP W/W 6.00 3.24 2.79 6.00 3.24 2.79
BTU/hW 20.50 11.00 9.50 20.50 11.00 9.50
Power Factor % - 95 - - 97 -
Indoor Noise (H / L / QLo) dB-A 35 / 28 / 25 35 / 28 / 25
Power Level dB 51 / - / - 51 / - / -
Outdoor Noise (H / L / QLo) dB-A 51 / - / - 51 / - / -
Power Level dB 66 / - / - 66 / - / -
Min Circuit Ampacity 15.00
Max. Overcurrent Protection 15.00
Max Current (A) / Max Input Power (W) 7.8 / 1.71k
Starting Current (A) 6.30
SEER/HSPF 20.00 / 10.00

9
MODEL
INDOOR CS-E12SD3UAW
OUTDOOR CU-E12SD3UA
Compressor
Type Hermetic Motor / Rotary
Motor Type Brushless (4-poles)
Output Power 700
Indoor Fan
Type Sirocco
Material GFZ010A / GF20
Motor Type DC Motor (8-poles)
Output Power W 51
Speed
QLo Cool rpm 880
Heat rpm 800
Lo Cool rpm 940
Heat rpm 880
Me Cool rpm 1120
Heat rpm 1090
Hi Cool rpm 1300
Heat rpm 1300
SHi Cool rpm 1430
Heat rpm 1430
Outdoor Fan
Type Propeller Fan
Material PP
Motor Type DC Motor (8-poles)
Output Power W 40
Speed Hi
Cool rpm 830
Heat rpm 820
Moisture Removal L/h (Pt/h) 0.8 (1.7)
Indoor Airflow
QLo Cool m3/min (ft3/min) 9.30 (328)
Heat m3/min (ft3/min) 8.50 (300)
Lo Cool m3/min (ft3/min) 9.90 (350)
Heat m3/min (ft3/min) 9.30 (328)
Me Cool m3/min (ft3/min) 11.70 (413)
Heat m3/min (ft3/min) 11.40 (403)
Hi Cool m3/min (ft3/min) 13.50 (475)
Heat m3/min (ft3/min) 13.50 (475)
SHi Cool m3/min (ft3/min) 14.80 (523)
Heat m3/min (ft3/min) 14.80 (523)
Outdoor Airflow Hi Cool m3/min (ft3/min) 31.2 (1100)
Heat m3/min (ft3/min) 31.2 (1100)
Refrigeration
Cycle
Control Device Expansion Valve
Refrigerant Oil cm3FV50S (320)
Refrigerant Type g (oz) R410A, 1.08k (38.1)
Dimension
Height (I/D / O/D) mm (inch) 200 (7-7/8) / 542 (21-11/32)
Width (I/D / O/D) mm (inch) 750 (29-17/32) / 780 (30-23/32)
Depth (I/D / O/D) mm (inch) 640 (25-7/32) / 289 (11-13/32)
Weight Net (I/D / O/D) kg (lb) 19 (42) / 37 (82)

10
MODEL
INDOOR CS-E12SD3UAW
OUTDOOR CU-E12SD3UA
Piping
Pipe Diameter (Liquid / Gas) mm (inch) 6.35 (1/4) / 12.70 (1/2)
Standard Length m (ft) 7.5 (24.6)
Length Range (min - max) m (ft) 3 (9.8) ~ 20 (65.6)
I/D & O/D Height Different m (ft) 15 (49.2)
Additional Gas Amount g/m (oz/ft) 20 (0.2)
Length for Additional Gas m (ft) 7.5 (24.6)
Drain Hose Inner Diameter mm/inch 16 / 0.63
Length mm/inch 117.5 / 4.63
Indoor Heat
Exchanger
Fin Material Aluminium (Pre Coat)
Fin Type Slit Fin
Row x Stage x FPI 3 x 12 x 18
Size (W x H x L) mm 590 x 282 x 38.1
Outdoor Heat
Exchanger
Fin Material Aluminium (Blue Coat)
Fin Type Corrugated Fin
Row x Stage x FPI 2 x 24 x 17
Size (W x H x L) mm 36.4 x 504 x 824:794
Power Supply Outdoor Power Supply
Power Supply Cord A Nil
Thermostat Electronic Control
Protection Device Electronic Control
Dry Bulb Wet Bulb
Indoor
Operation
Range
Cooling Maximum °C/°F 32 / 89.6 23 / 73.4
Minimum °C/°F 16 / 60.8 11 / 51.8
Heating Maximum °C/°F 30 / 86.0 - / -
Minimum °C/°F 16 / 60.8 - / -
Outdoor
Operation
Range
Cooling Maximum °C/°F 46 / 114.8 26 / 78.8
Minimum °C/°F -17.8 / 0 - / -
Heating Maximum °C/°F 24 / 75.2 18 / 64.4
Minimum °C/°F -20 / -4 -21 / -5.8
1. Cooling capacities are based on indoor temperature of 27°C Dry Bulb (80.6°F Dry Bulb), 19.0°C Wet Bulb (66.2°F Wet Bulb) and outdoor air
temperature of 35°C Dry Bulb (95°F Dry Bulb), 24°C Wet Bulb (75.2°F Wet Bulb)
2. Heating capacities are based on indoor temperature of 20°C Dry Bulb (68°F Dry Bulb) and outdoor air temperature of 7°C Dry Bulb
(44.6°F Dry Bulb), 6°C Wet Bulb (42.8°F Wet Bulb)
3 Heating low temperature capacity, Input Power and COP measured at 230 V, indoor temperature 20°C (68°F), outdoor 2/1°C (35°F/33.8°F)
4 Heating extreme low temperature capacity, Input Power and COP measured at 230 V indoor temperature 20°C (68°F), outdoor -7/-8°C
(19.4°F/17.6°F)
5. Standby power consumption ≤0.7W (when switched OFF by remote control, except under self protection control).
6. Specifications are subjected to change without notice for further improvement.

11
MODEL
INDOOR CS-E18SD3UAW
OUTDOOR CU-E18SD3UA
Performance Test Condition ARI
Power Supply
Phase, Hz Single, 60
V 208 230
Min. Mid. Max. Min. Mid. Max.
Cooling
Capacity kW 1.70 5.04 5.70 1.70 5.04 5.70
BTU/h 5800 17200 19400 5800 17200 19400
Running Current A - 8.5 - - 7.6 -
Input Power W 430 1.58k 1.82k 430 1.58k 1.82k
EER W/W 3.95 3.18 3.13 3.95 3.18 3.13
BTU/hW 13.45 10.85 10.65 13.45 10.85 10.65
Power Factor % - 89 - - 90 -
Indoor Noise (H / L / QLo) dB-A 41 / 30 / 27 41 / 30 / 27
Power Level dB 57 / - / - 57 / - / -
Outdoor Noise (H / L / QLo) dB-A 49 / - / - 49 / - / -
Power Level dB 63 / - / - 63 / - / -
Heating
Capacity kW 1.70 6.09 7.10 1.70 6.09 7.10
BTU/h 5800 20800 24200 5800 20800 24200
Running Current A - 9.8 - - 8.7 -
Input Power W 380 1.83k 2.18k 380 1.83k 2.18k
COP W/W 4.47 3.32 3.26 4.47 3.32 3.26
BTU/hW 15.25 11.35 11.10 15.25 11.35 11.10
Power Factor % - 90 - - 91 -
Indoor Noise (H / L / QLo) dB-A 41 / 32 / 29 41 / 32 / 29
Power Level dB 57 / - / - 57 / - / -
Outdoor Noise (H / L / QLo) dB-A 51 / - / - 51 / - / -
Power Level dB 65 / - / - 65 / - / -
Min Circuit Ampacity 20.0
Max. Overcurrent Protection 25.0
Max Current (A) / Max Input Power (W) 13.7 / 3.06k
Starting Current (A) 9.80
SEER/HSPF 16.50 / 8.50

12
MODEL
INDOOR CS-E18SD3UAW
OUTDOOR CU-E18SD3UA
Compressor
Type Hermetic Motor / Rotary
Motor Type Brushless (4-poles)
Output Power 1.70k
Indoor Fan
Type Sirocco
Material GFZ010A / GF20
Motor Type DC Motor (8-poles)
Output Power W 51
Speed
QLo Cool rpm 920
Heat rpm 920
Lo Cool rpm 980
Heat rpm 1000
Me Cool rpm 1230
Heat rpm 1240
Hi Cool rpm 1480
Heat rpm 1480
SHi Cool rpm 1530
Heat rpm 1530
Outdoor Fan
Type Propeller Fan
Material PP
Motor Type DC Motor (8-poles)
Output Power W 60
Speed Hi
Cool rpm 700
Heat rpm 700
Moisture Removal L/h (Pt/h) 2.2 (4.6)
Indoor Airflow
QLo Cool m3/min (ft3/min) 9.70 (342)
Heat m3/min (ft3/min) 9.70 (342)
Lo Cool m3/min (ft3/min) 10.30 (364)
Heat m3/min (ft3/min) 10.30 (364)
Me Cool m3/min (ft3/min) 12.80 (452)
Heat m3/min (ft3/min) 12.80 (452)
Hi Cool m3/min (ft3/min) 15.30 (540)
Heat m3/min (ft3/min) 15.30 (540)
SHi Cool m3/min (ft3/min) 15.80 (558)
Heat m3/min (ft3/min) 15.80 (558)
Outdoor Airflow Hi Cool m3/min (ft3/min) 54.5 (1925)
Heat m3/min (ft3/min) 54.5 (1925)
Refrigeration
Cycle
Control Device Expansion Valve
Refrigerant Oil cm3FV50S (800)
Refrigerant Type g (oz) R410A, 1.60k (56.5)
Dimension
Height (I/D / O/D) mm (inch) 200 (7-7/8) / 795 (31-5/16)
Width (I/D / O/D) mm (inch) 750 (29-17/32) / 875 (34-15/32)
Depth (I/D / O/D) mm (inch) 640 (25-7/32) / 320 (12-5/8)
Weight Net (I/D / O/D) kg (lb) 19 (42) / 60 (132)

13
MODEL
INDOOR CS-E18SD3UAW
OUTDOOR CU-E18SD3UA
Piping
Pipe Diameter (Liquid / Gas) mm (inch) 6.35 (1/4) / 12.70 (1/2)
Standard Length m (ft) 7.5 (24.6)
Length Range (min - max) m (ft) 3 (9.8) ~ 30.5 (100.0)
I/D & O/D Height Different m (ft) 15 (49.2)
Additional Gas Amount g/m (oz/ft) 25 (0.3)
Length for Additional Gas m (ft) 10 (32.8)
Drain Hose Inner Diameter mm/inch 16 / 0.63
Length mm/inch 117.5 / 4.63
Indoor Heat
Exchanger
Fin Material Aluminium (Pre Coat)
Fin Type Slit Fin
Row x Stage x FPI 3 x 12 x 18
Size (W x H x L) mm 590 x 282 x 38.1
Outdoor Heat
Exchanger
Fin Material Aluminium (Blue Coat)
Fin Type Corrugated Fin
Row x Stage x FPI 2 x 36 x 19
Size (W x H x L) mm 36.4 x 756 x 869:897
Power Supply Outdoor Power Supply
Power Supply Cord A Nil
Thermostat Electronic Control
Protection Device Electronic Control
Dry Bulb Wet Bulb
Indoor
Operation
Range
Cooling Maximum °C/°F 32 / 89.6 23 / 73.4
Minimum °C/°F 16 / 60.8 11 / 51.8
Heating Maximum °C/°F 30 / 86.0 - / -
Minimum °C/°F 16 / 60.8 - / -
Outdoor
Operation
Range
Cooling Maximum °C/°F 46 / 114.8 26 / 78.8
Minimum °C/°F -17.8 / 0 - / -
Heating Maximum °C/°F 24 / 75.2 18 / 64.4
Minimum °C/°F -20 / -4 -21 / -5.8
1. Cooling capacities are based on indoor temperature of 27°C Dry Bulb (80.6°F Dry Bulb), 19.0°C Wet Bulb (66.2°F Wet Bulb) and outdoor air
temperature of 35°C Dry Bulb (95°F Dry Bulb), 24°C Wet Bulb (75.2°F Wet Bulb)
2. Heating capacities are based on indoor temperature of 20°C Dry Bulb (68°F Dry Bulb) and outdoor air temperature of 7°C Dry Bulb
(44.6°F Dry Bulb), 6°C Wet Bulb (42.8°F Wet Bulb)
3 Heating low temperature capacity, Input Power and COP measured at 230 V, indoor temperature 20°C (68°F), outdoor 2/1°C (35°F/33.8°F)
4 Heating extreme low temperature capacity, Input Power and COP measured at 230 V indoor temperature 20°C (68°F), outdoor -7/-8°C
(19.4°F/17.6°F)
5. Standby power consumption ≤0.7W (when switched OFF by remote control, except under self protection control).
6. Specifications are subjected to change without notice for further improvement.

14
3. Features
Inverter Technology
oWider output power range
oEnergy saving
oQuick Cooling
oQuick Heating
oMore precise temperature control
Environment Protection
oNon-ozone depletion substances refrigerant (R410A)
Long Installation Piping
oLong piping up to 20 meter (E9SD3UA/E12SD3UA)
oLong piping up to 30.5 meter (E18SD3UA)
Easy to use remote control
Quality Improvement
oRandom auto restart after power failure for safety restart operation
oGas leakage protection
oPrevent compressor reverse cycle
oInner protector to protect compressor
oNoise prevention during soft dry operation
Operation Improvement
oQuiet mode to reduce the indoor unit operating sound
oPowerful mode to reach the desired room temperature quickly
o24-hour timer setting
Serviceability Improvement
oBreakdown Self Diagnosis function

15
4. Location of Controls and Components
4.1 Indoor Unit
Air inlet
A
ir outlet
4.2 Outdoor Unit
Air inlet (rear)
A
ir inlet (side)
Air outlet
4.3 Remote Control
Check
Timer setting
Fan speed selection
Quiet operation
Transmitter
Operation mode
Powerful operation
OFF/ON
Temperature setting
Remote control receiver
Clock setting
Indicator
POWER
(Green)
TIMER
(Orange)
POWERFUL
(Orange)
QUIET
(Orange)

16
5. Dimensions
5.1 Indoor Unit
(AIR OUTLET DUCT FLANGE)
692 (27 - 1/4)
145 (5 - 11/16)
(AIR OUTLET DUCT FLANGE)
96 (3 - 25/32)
27 (1 - 1/16)
160 X 4 = 640
5 - Ø 3.1 HOLE
26 (1 - 1/32)
750 (29 - 17/32)
824 (32 - 7/16)
904 (35 - 9/16)
640 (25 - 3/16)
564 (22 - 3/16)
194 ( 7 - 5/8)
AIR FILTER
(AIR INLET)
126 (4 - 31/32)
680 (26 - 25/32)
(AIR INLET)
220 (8 - 21/32) 220 (8 - 21/32)132 (5 - 3/16) 132 (5 - 3/16)
14 (17/32) 14 (17/32)
14 (17/32)
14 (17/32)
23 (7/8)
23 (7/8) 23 (7/8)
155 ( 6 - 3/32)
120 (4 - 23/32)
23 (1 - 3/32)
40 (1-9/16)
200 ( 7- 7/8)
150 (5 7/8)
DRAIN PORT (UPPER & LOWER)
120 (4 - 23/32)33 (1 - 5/16)
80 (3-1/8) 143 (5-5/8)
44 238 (9 - 3/8)
(1 - 23/32)
81 (3-3/16)
WATER INLET
28 (1-3/32)
84 (3-5/16) 30 (1-3/16)
10 (3/8)
2- Ø 3.1 HOLE
87 (3-13/32)
63.68 (2-1/2)
18 (11/16)
<Remote Control Holder>
<Remote Control>
144.5 (5-11/16)
59 (2-5/16)
<Bottom View> <Side View>
<Front View>
<Back View>
Unit : mm/inch

17
5.2 Outdoor Unit
5.2.1 CU-E9SD3UA CU-E12SD3UA
Unit : mm/inch
24.4
(15/16) (104.7)
(4-3/32)
780 (30-23/32)
104.9
(4-1/8)
67.6
(2-21/32)
60.5
(2-3/8)
34.5 (1-11/32)
155 (6-3/32)
84.8
(3-5/16)
570 (22-7/16)
10 cm
100 cm
10 cm
<Top View>
<Front View><Side View>
<Side View>
2-way valve at Liquid side
(High Pressure)
3-way valve at Gas side
(Low Pressure)
Anchor Bolt Pitch
320 x 570
Space necessary for
installation
289 (11-13/32)
11.5 (7/16)
542 (21-11/32)
61.6 (2-13/32)
69.6
(2-23/32)
(18) (11/16)
5.2.2 CU-E18SD3UA
<Top View>
Space necessary for
installation
Anchor Bolt Pitch
360.5 x 613
<Front View><Side View>
<Side View>
2-way valve at Liquid side
(High Pressure)
3-way valve at Gas side
(Low Pressure)
Unit: mm/inch
10 cm
100 cm
10 cm
795 (31-5/16)
320 (12-5/8)
59
(2-5/16)
(25) (31-32)
70
(2-3/4)
75 (2-15/16)
64 (2-1/2)
875 (34-15/32)
27.5
(1-1/16)
38 (1-1/2)
82
(3-7/32)
70
(2-3/4)
360.5 (14-3/16)
613 (24-1/8) 131
(5-5/32)
(131)
(5-5/32)
152
(5-31/32)

18
6. Refrigeration Cycle Diagram
6.1 CS-E9SD3UAW CU-E9SD3UA
INDOOR OUTDOOR
INTAKE
TEMP.
SENSOR PIPE
(INLET)
TEMP.
SENSOR 2
PIPE
TEMP.
SENSOR 1 AIR
TEMP.
SENSOR
PIPE
TEMP.
SENSOR
LIQUID
SIDE
2-WAY
VALVE
3-WAY
VALVE
GAS
SIDE
HEAT EXCHANGER
(EVAPORATOR)
COOLING
HEATING
COMPRESSOR
CONDENSER
PROCESS
TUBE
STRAINER
EXPANSION
VALVE
4-WAYS VALVE
DISCHARGE
MUFFLER
COMPRESSOR
TEMP. SENSOR
DISCHARGE
MUFFLER

19
6.2 CS-E12SD3UAW CU-E12SD3UA
INDOOR OUTDOOR
INTAKE
TEMP.
SENSOR PIPE
(INLET)
TEMP.
SENSOR 2
PIPE
TEMP.
SENSOR 1 AIR
TEMP.
SENSOR
PIPE
TEMP.
SENSOR
LIQUID
SIDE
2-WAY
VALVE
3-WAY
VALVE
GAS
SIDE
HEAT EXCHANGER
(EVAPORATOR)
COOLING
HEATING
COMPRESSOR
CONDENSER
STRAINER
EXPANSION
VALVE
4-WAYS VALVE
DISCHARGE
MUFFLER
COMPRESSOR
TEMP. SENSOR
DISCHARGE
MUFFLER

20
6.3 CS-E18SD3UAW CU-E18SD3UA
AIR
TEMP.
SENSOR
PIPE
TEMP.
SENSOR
DISTRIBUTOR
INDOOR OUTDOOR
INTAKE
TEMP.
SENSOR PIPE
(INLET)
TEMP.
SENSOR 2
PIPE
TEMP.
SENSOR 1
LIQUID
SIDE
2-WAY
VALVE
3-WAY
VALVE
GAS
SIDE
HEAT EXCHANGER
(EVAPORATOR)
COOLING
HEATING
COMPRESSOR
4-WAYS VALVE
COMPRESSOR
TEMP. SENSOR
DISCHARGE
MUFFLER
STRAINERRECEIVER
EXPANSION
VALVE