Panasonic cu-2e18sbu service manual

Page 1

Order No: PAPAMY1604017CE

Outdoor Unit CU-2E18SBU

Please file and use this manual together with the service manual for Model No. CS-ME5RKUA CS-ME7RKUA, CS-E9RKUA CS-E12RKUA, CS-ME9SB4U, CS-E12RB4UW, CS-ME5SD3UA CS-ME7SD3UA, CS-E9SD3UAW CS-E12SD3UAW, Order No. PAPAMY1503085CE, PAPAMY1501049CE, PAPAMY1604059CE, PAPAMY1503095CE, PAPAMY1604056CE, PAPAMY1604052CE.

WARNING

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.

In order to avoid frostbite, be assured of no refrigerant leakage during the installation or repairing of refrigerant circuit.

PRECAUTION OF LOW TEMPERATURE

Page 2

TABLE OF CONTENTS

PAGE PAGE

1. Safety Precautions ............................................. 3

2. Specifications ..................................................... 5

2.1 CU-2E18SBU ............................................... 5

3. Dimensions ......................................................... 8

4. Refrigeration Cycle Diagram ............................. 9

5. Block Diagram .................................................. 10

6. Wiring Connection Diagram ............................ 11

7. Electronic Circuit Diagram .............................. 12

8. Printed Circuit Board ....................................... 13

8.1 Main Printed Circuit Board ......................... 13

8.2 Noise Filter Printed Circuit Board ............... 14

8.3 Display Printed Circuit Board ..................... 14

13.16 Compressor Discharge High Pressure

Protection Control .......................................27

14. Servicing Mode .................................................28

14.1 CU-2E18SBU .............................................28

15. Troubleshooting Guide ....................................30

15.1 Self Diagnosis Function ..............................30

16. Disassembly and Assembly Instructions ......33

16.1 Outdoor Unit Removal Procedure ..............33

17. Technical Data ..................................................36

17.1 Cool Mode Performance Data ....................36

17.2 Heat Mode Performance Data ....................38

18. Service Data ......................................................40



9. Installation Information .................................... 15

9.1 Check Points .............................................. 15

10. Installation Instruction ..................................... 16

10.1 Accessories Supplied with Outdoor

Unit ............................................................. 16

10.2 Cutting and Flaring the Piping .................... 16

10.3 Select the Best Location ............................. 17

10.4 Install the Outdoor Unit ............................... 18

10.5 Connect the Piping ..................................... 18

10.6 Evacuation of the Equipment ..................... 19

10.7 Connect the Cable to the Outdoor Unit ...... 20

10.8 Heat Insulation ............................................ 20

11. Operation Control ............................................. 21

11.1 Cooling Operation ....................................... 21

11.2 Heating Operation ...................................... 22

12. Simultaneous Operation Control .................... 23

13. Protection Control ............................................ 24

13.1 Freeze Prevention Control (Cool) ............... 24

13.2 Dew Prevention Control (Cool) ................... 24

13.3 Electronic Parts Temperature Rise

Protection 1 (Cool) ...................................... 24

13.4 Electronic Parts Temperature Rise

Protection 2 (Cool) ...................................... 24

13.5 Cooling Overload Control (Cool) ................ 25

13.6 Heating Overload Control (Heat) ................ 25

13.7 Extreme Low Temperature Compressor

Low Pressure Protection Control (Heat) ..... 25

13.8 Deice Control .............................................. 26

13.9 Time Delay Safety Control (Restart

Control) ....................................................... 26

13.10 30 seconds Force Operation ...................... 26

13.11 Total Current Control .................................. 26

13.12 IPM (power transistor) Protection

Control ........................................................ 26

13.13 Compressor Protection Control (Gas leak

detection control 1) ..................................... 27

13.14 Compressor Protection Control (Gas leak

detection control 2) ..................................... 27

13.15 Valve Close Detection Control ................... 27

18.1 Operation Characteristics ...........................40

19. Exploded View and Replacement Parts

List .....................................................................44



Page 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

CAUTION

 The items to be followed are classified by the symbols:

 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.

This indication shows the possibility of causing death or serious injury.

This indication shows the possibility of causing injury or damage to properties only.

Symbol with white background denotes item that is PROHIBITED from doing.

Symbol with dark background denotes item that must be carried out.

WARNING

Do not install outdoor unit near handrail of veranda. When installing air-conditioner unit on veranda of a high rise building, child

1. may climb up to outdoor unit and cross over the handrail causing an accident.

Do not use unspecified cord, modified cord, joint cord or extension cord for power supply cord. Do not share the single outlet

2. 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.

Do not insert your fingers or other objects into the unit, high speed rotating fan may cause injury.

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.

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.

 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). Engage authorized dealer or specialist for installation. If installation done by the user is incorrect, it will cause water leakage, electrical

10. shock or fire.

11. Install according to this installation instructions strictly. If installation is defective, it will cause water leakage, electrical shock or fire.

Use the attached accessories parts and specified parts for installation. Otherwise, it will cause the set to fall, water leakage, fire or

12. electrical shock.

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

13. done, the set will drop and cause injury.

For installation work, follow all electrical, building, plumbing, local codes, regulations and these installation instructions. If electrical circuit

14. capacity is not enough or a defect is found in electrical work, it will cause electrical shock or fire.

Do not use spliced wires for indoor/outdoor connection cable. Use the specified indoor/outdoor connection cable, refer to instruction

15.

INDOOR/OUTDOOR UNIT ELECTRICAL WIRING 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.

Wire routing must be properly arranged so that control board cover is fixed properly. If control board cover is not fixed perfectly, it will

16. cause fire or electrical shock.

This equipment must installed with an Earth Leakage Circuit Breaker (ELCB) or Ground Fault Current Interrupter (GFCI) or Appliance

17.

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.

Page 4

During installation, install the refrigerant piping properly before running the compressor. Operation of compressor without fixing

18.

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.

During pump down operation, stop the compressor before removing the refrigeration piping. Removal of refrigeration piping while

19.

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.

Tighten the flare nut with torque wrench according to specified method. If the flare nut is over-tightened, after a long period, the flare

20. may break and cause refrigerant gas leakage.

After completion of installation, confirm there is no leakage of refrigerant gas. It may generate toxic gas when the refrigerant comes into

21. 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.

This equipment must be properly earthed. Earth line must not be connected to gas pipe, water pipe, earth of lightning rod and telephone.

23. Otherwise, it may cause electrical shock in case of equipment breakdown or insulation breakdown.

CAUTION

Do not install the unit at place where leakage of flammable gas may occur. In case gas leaks and accumulates at surrounding

1. of the unit, it may cause fire.

Do not release refrigerant during piping work for installation, re-installation and during repairing a refrigeration parts. Take care

2. 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.

Do not touch the sharp aluminium fin, sharp parts may cause injury.

Carry out drainage piping as mentioned in installation instructions. If drainage is not perfect, water may enter the room and damage the

5. furniture.

6. Select an installation location which is easy for maintenance.

Power supply connection to the room air conditioner. Power supply cord shall be UL listed or CSA approved 3 conductor with minimum AWG12 wires. Power supply point should be in an easily accessible place for power disconnection in case of emergency.

7. 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.

Installation work.

8. It may take two people to carry out the installation work.

Page 5

2. Specifications

2.1 CU-2E18SBU

Item Unit OUTDOOR UNIT

Indoor Unit Combination 2.5kW + 2.5kW

Power Source

Capacity

Running Current A 6.6 - 6.0

Electrical

Cooling Operation

Heating Operation

Maximum Current A 13.6

Maximum Input Power W 3.04k

Starting Current A 8.5

Minimum Circuit Ampacity A 20

Dimension

Net Weight kg (lb) 71 (157)

Connection cable 3 + 1 (Earth) ø1.5 mm2

Pipe Length Range (1 room) m (ft) 3 ~ 25 (9.8 ~ 82.0)

Maximum Pipe Length (Total Room) m (ft) 50 (164.0)

Refrigerant Pipe Diameter

Compressor

Air Circulation

Fan Speed High RPM 580

Heat Exchanger

Data

Noise

Power Factor % 97 / 96

Capacity

Electrical

Data

Noise

Power Factor % 99 / 98

Height mm (inch) 795 (31-5/16)

Width mm (inch) 875 + 95 (34-15/32 + 3-3/4)

Depth mm (inch) 320 (12-5/8)

Liquid Side mm (inch) 6.35 (1/4)

Gas Side mm (inch) 9.52 (3/8)

Type Hermetic Motor

Motor Type DC Brushless (4-poles)

Rated Output W 1.30k

Type Propeller Fan

Motor Type DC Brushless (8-poles)

Rated Output W 60

Type Plate fin configuration forced draft type

Tube Material Copper

Fin Material Aluminum (Blue Coat)

Row/Stage 2/36

FPI 19

Power Input kW 1.33 (0.36 ~ 1.69)

EER W/W 3.68 (5.83 ~ 3.47)

BTU/hW 12.55 (20.00 ~ 11.85)

Sound Pressure Level dB-A 48

Sound Power Level dB 62

Running Current A 8.5 - 7.8

Power Input kW 1.75 (0.40 ~ 2.18)

COP W/W 3.38 (5.28 ~ 3.30)

BTU/hW 11.50 (18.00 ~ 11.30)

Sound Pressure Level dB-A 49

Sound Power Level dB 63

kW 4.89 (2.10 ~ 5.86)

BTU/h 16700 (7200 ~ 20000)

kW 5.94 (2.11 ~ 7.20)

BTU/h 20200 (7200 ~ 24600)

1 Phase, 208 – 230V, 60Hz (Power supply from

outdoor unit)

Page 6

Item Unit OUTDOOR UNIT

Air Volume High m3/min (ft3/min) 41.0 (1447)

Refrigerant Control Device Expansion Valve

Refrigerant Oil cm3 FV50S (900)

Refrigerant (R410A) g (oz) 2.23k (78.7)

Dry Bulb Wet Bulb

Cooling

Indoor Operation Range

Heating

Cooling

Outdoor Operation Range

Heating

Maximum °C (°F) 32 (89.6) 23 (73.4)

Minimum °C (°F) 16 (60.8) 11 (51.8)

Maximum °C (°F) 30 (86.0) —

Minimum °C (°F) 16 (60.8) —

Maximum °C (°F) 46 (114.8) 26 (78.8)

Minimum °C (°F) -10 (14.0) — / —

Maximum °C (°F) 24 (75.2) 18 (64.4)

Minimum °C (°F) -15 (5.0) -16 (3.2)

Note

 Specifications are subject to change without notice for further improvement.

 Multi split combination possibility:

o A single outdoor unit enables air conditioning of up to two separate rooms for CU-2E18SBU.

Outdoor Unit

CU-2E18SBU

A B

1.6 kW CS-ME5RKUA, CS-ME5SD3UA

2.0 kW CS-ME7RKUA, CS-ME7SD3UA

Wall

Capacity range of connectable indoor units From 3.2 kW to 6.4 kW

1 room maximum pipe length (m (ft)) 25 (82.0)

Allowable elevation (m (ft)) 15 (49.2)

Total allowable pipe length (m (ft)) 50 (164.0)

Total pipe length for maximum chargeless length (m (ft)) 20 (65.6)

Piping Length

Additional gas amount over chargeless length (g/m (oz/ft)) 20 (0.2)

Remarks for CU-2E18SBU

1. At least two indoor units must be connected.

2. The total nominal cooling capacity of indoor units that will be connected to outdoor unit must be within connectable capacity range of indoor unit. (as shown in the table above) Example: The indoor units’ combination below is possible to connect to CU-2E18SBU. (Total nominal capacity of indoor units is between

3.2 kW to 6.4 kW)

1) Two CS-E9RKUAW only. (Total nominal cooling capacity is 5.0 kW)

2) One CS-E9RKUAW and one CS-E12RKUAW. (Total nominal cooling capacity is 5.7 kW)

 Specifications are subject to change without notice for further improvement.

2.5 kW CS-E9RKUAW, CS-ME9SB4U, CS-E9SD3UAW

3.2 kW CS-E12RKUAW, CS-E12RB4UW, CS-E12SD3UAW

Note: “

• •

•” : Available

Page 7

2 Room

Indoor unit

capacity

Cooling

1.6 + 1.6 3.2 1.620 1.620 3.24 2.10 ～ 3.89 770 360 ～ 960 4.20 19.00 3.6 0.3 + 0.3

1.6 + 2.0 3.6 1.613 2.017 3.63

1.6 + 2.5 4.1 1.616 2.524 4.14 2.10 ～ 4.97 1030 360 ～ 1370 4.02 19.00 4.7 0.3 + 0.5

1.6 + 3.2 4.8 1.610 3.220 4.83 2.10 ～ 5.80 1290 360 ～ 1680 3.74 19.00 5.8 0.3 + 0.6

2.0 + 2.0 4.0 2.010 2.010 4.02 2.10 ～ 4.82 980 360 ～ 1310 4.10 19.00 4.5 0.4 + 0.4

2.0 + 2.5 4.5 2.013 2.517 4.53

2.0 + 3.2 5.2 1.881 3.009 4.89 2.10 ～ 5.86 1330 360 ～ 1690 3.68 19.00 6.0 0.4 + 0.6

2.5 + 2.5 5.0 2.445 2.445 4.89 2.10 ～ 5.86 1330 360 ～ 1690 3.68 19.00 6.0 0.5 + 0.5

2.5 + 3.2 5.7 2.145 2.745 4.89 2.10 ～ 5.86 1330 360 ～ 1690 3.68 19.00 6.0 0.5 + 0.6

3.2 + 3.2 6.4 2.445 2.445 4.89

Total

Room A Room

Cooling Capacity (kW) Input Power (W)

Total min ～ max Rating min ～ max

2.10 ～ 4.36

2.10 ～ 5.44

2.10 ～ 5.86

2 Room

Indoor unit

capacity

Cooling

1.6 + 1.6 3.2 5500 5500 11000 7200 ～ 13300 770 360 ～ 960

1.6 + 2.0 3.6 5511 6889 12400 7200 ～ 14900 860 360 ～ 1110

1.6 + 2.5 4.1 5502 8598 14100

1.6 + 3.2 4.8 5500 11000 16500 7200 ～ 19800 1290 360 ～ 1680

2.0 + 2.0 4.0 6850 6850 13700 7200 ～ 16400 980 360 ～ 1310

2.0 + 2.5 4.5 6844 8556 15400 7200 ～ 18500 1210 360 ～ 1580

2.0 + 3.2 5.2 6423 10277 16700 7200 ～ 20000 1330 360 ～ 1690

2.5 + 2.5 5.0 8350 8350 16700 7200 ～ 20000 1330 360 ～ 1690

2.5 + 3.2 5.7 7325 9375 16700

3.2 + 3.2 6.4 8350 8350 16700 7200 ～ 20000 1330 360 ～ 1690

Total

Cooling Capacity (BTU/hr) Input Power (W)

Room A Room

Total min ～ max Rating min ～ max

7200 ～ 16900

7200 ～ 20000

 Specifications are subject to change without notice for further improvement.

2 Room

Indoor unit

capacity

Heating

1.6 + 1.6 3.2 2.350 2.350 4.70

1.6 + 2.0 3.6 2.329 2.911 5.24 2.11 ～ 6.29 1600 400 ～ 2020 3.26 9.50 8.50 7.2

1.6 + 2.5 4.1 2.181 3.409 5.59 2.11 ～ 6.71 1740 400 ～ 2170 3.20 9.50 8.50 7.8

1.6 + 3.2 4.8 1.980 3.960 5.94 2.11 ～ 7.13 1800 400 ～ 2340 3.30 9.50 8.50 8.0

2.0 + 2.0 4.0 2.890 2.890 5.78 2.11 ～ 6.94 1770 400 ～ 2260 3.26 9.50 8.50 7.8

2.0 + 2.5 4.5 2.640 3.300 5.94 2.11 ～ 7.13 1870 400 ～ 2360 3.16 9.50 8.50 8.3

2.0 + 3.2 5.2 2.285 3.655 5.94

2.5 + 2.5 5.0 2.970 2.970 5.94 2.11 ～ 7.20 1750 400 ～ 2180 3.38 9.50 8.50 7.8

2.5 + 3.2 5.7 2.605 3.335 5.94 2.11 ～ 7.20 1750 400 ～ 2180 3.38 9.50 8.50 7.8

3.2 + 3.2 6.4 2.970 2.970 5.94 2.11 ～ 7.20 1750 400 ～ 2180 3.38 9.50 8.50 7.8

Total

Heating Capacity (kW) Input Power (W)

Room A Room

Total

min ～ max

2.11 ～ 5.64

2.11 ～ 7.20

Rating

1450

1750

2 Room

Indoor unit

capacity

Heating

1.6 + 1.6 3.2 8000 8000 16000 7200 ～ 19200 1450 400 ～ 1770 11.00 9.50 8.50 6.5

1.6 + 2.0 3.6 7956 9944 17900 7200 ～ 21400 1600 400 ～ 2020 11.15 9.50 8.50 7.2

1.6 + 2.5 4.1 7454 11646 19100 7200 ～ 22800 1740 400 ～ 2170 10.95 9.50 8.50 7.8

1.6 + 3.2 4.8 6733 13467 20200 7200 ～ 24400 1800 400 ～ 2340 11.20 9.50 8.50 8.0

2.0 + 2.0 4.0 9850 9850 19700

2.0 + 2.5 4.5 8978 11222 20200 7200 ～ 24400 1870 400 ～ 2360 10.80 9.50 8.50 8.3

2.0 + 3.2 5.2 7769 12431 20200 7200 ～ 24600 1750 400 ～ 2180 11.50 9.50 8.50 7.8

2.5 + 2.5 5.0 10100 10100 20200 7200 ～ 24600 1750 400 ～ 2180 11.50 9.50 8.50 7.8

2.5 + 3.2 5.7 8860 11340 20200 7200 ～ 24600 1750 400 ～ 2180 11.50 9.50 8.50 7.8

3.2 + 3.2 6.4 10100 10100 20200 7200 ～ 24600 1750 400 ～ 2180 11.50 9.50 8.50 7.8

Total

Heating Capacity (BTU/hr) Input Power (W)

Room A Room

Total min ～ max Rating min ～ max

7200 ～ 23600

1770

 Specifications are subject to change without notice for further improvement.

860

1210

1330

1030

1330

min ～ max

400 ～ 1770

400 ～ 2180

400 ～ 2260

360 ～ 1110

360 ～ 1580

360 ～ 1690

360 ～ 1370

360 ～ 1690

COP W/W

3.24 9.50 8.50 6.5

3.38 9.50 8.50 7.8

COP

Btu/h.W

11.10 9.50 8.50 7.8

EER

SEER

W/W

4.22 19.00 4.0 0.3 + 0.4

3.74 19.00 5.5 0.4 + 0.5

3.68 19.00 6.0 0.6 + 0.6

EER

Btu/h.W

14.25

14.40

13.65

12.75

13.95

12.70

12.55

SEER

19.00 3.6 0.3 + 0.3

19.00 4.0 0.3 + 0.4

19.00 4.7 0.3 + 0.5

19.00 5.8 0.3 + 0.6

19.00 4.5 0.4 + 0.4

19.00 5.5 0.4 + 0.5

19.00 6.0 0.4 + 0.6

19.00 6.0 0.5 + 0.5

19.00 6.0 0.5 + 0.6

19.00 6.0 0.6 + 0.6

HSPF

Region

HSPF

Region

Current,

230V (A)

Current,

230V (A)

Current,

230V

(A)

Current,

230V

(A)

Moisture

Removal

Volume (l/h)

Moisture Removal

Volume (l/h)

Moisture Removal

Volume

(l/h)

Moisture

Removal

Volume

(l/h)

Page 8

3. Dimensions

Space necessary for

installation

3-7/8

1-3/32

(5-5/32)

24-1/8

5-5/32 3-3/4

1-1/2

3-7/8

Anchor Bolt Pitch

14-13/64 x 24-1/8

Unit: inch

39-3/38

34-15/32

3-9/32

5-7/321-5/8

14-3/6

2-5/16 12-5/8

15/16

2-1/2

1-21/32

(63/64)

43/64

3-19/32

(3-3/16)

3-3/8 x 3 = 10-1/8

(8-9/32)

(6-9/16)

31-5/16

Page 9

4. Refrigeration Cycle Diagram

INDOOR A

LIQUID SIDE

3- WAY VALVE

INTAKE

TEMP.

SENSOR

HEAT

EXCHANGER

(EVAPORATOR)

INTAKE

TEMP.

SENSOR

HEAT

EXCHANGER

(EVAPORATOR)

PIPE

TEMP.

SENSOR

PIPE

TEMP.

SENSOR

LIQUID SIDE

3- WAY VALVE

GAS SIDE

3- WAY VALVE

GAS SIDE

PIPE

TEMP.

SENSOR

PIPE

TEMP.

SENSOR

STRAINER

EXPANSION

VALVE A

EXPANSION

VALV E B

OUTDOOR

STRAINER3- WAY VALVE

CONDENSOR

DISCH.

PIPE TEMP.

SENSOR (DEF)

INTAKE

TEMP.

SENSOR

HEAT

EXCHANGER

(CONDENSOR)

TEMP.

SENSOR

INDOOR B

PIPE

TEMP.

SENSOR

PIPE

TEMP.

SENSOR

3- WAY VALVE

COMPRESSOR

TEMP.

SENSOR

COMPRESSOR

COOLING

HEATING

Page 10

5. Block Diagram

COMP

FUSE

REACTOR

FUSE

NOISE

FILTER

POWER

SUPPLY

TO INDOOR UNIT ATO INDOOR UNIT B

123

Page 11

6. Wiring Connection Diagram

DB3

DB1

FUSE1

T 3.15A

RY-C

BLU

RED

BLU

RED

BLK

COMPRESSOR

YLW

CORE

YLW

L 250V

FAN MOTOR

WHITE

CN-FM1

RED

BLUE

CN-PSW1

HIGH PRESSURE SW.

RED

LIQUID PIPE

SENSOR A

LIQUID PIPE

SENSOR B

WHITE

CN-TH3

GAS PIPE

SENSOR A

SENSOR B

SENSOR COMPLETE

CN-TH4

SENSOR COMPLETE

WHITE

1411161

WHITE

CN-TH1

CN-TH2

YELLOW

(THERMISTOR)

OUTLET TEMP.SENSOR

SENSOR

COMPLETE

(THERMISTOR)

COND.TEMP.SENSOR

(THERMISTOR)

SENSOR

COMPLETE

PIPE TEMP.SENSOR (DEF)

CONNECTION 5KD184XAB21 ()

REACTOR

YELLOW (W)

0.720

0.726

U - V

U - W

GRY

0.708

V - W

REACTOR

GRY

WHITE

CONNECTOR

RED (U)BLUE (V)

(TRADEMARK)

GRN

CORE

GRY BLK BLK

GRY

COMP. TERMINAL

GRN

L1-I L2-I L2-O L1-O

FG2

FG1

CT400

AC-WHT

CORE

CN-WHT

WHT

RY-PWR

AC-BLK

CN-BLK

CORE

BLK

PTC1

RY-AC

WHT

PTC2

T 2.5A

FUSE2

WHT

DB2

L 250V

WHT

WHITE

CN-DATA

WHT

WHITE

CN-DATA

WHT

ELECTRONIC CONTROLLER

(MAIN)

WHT

COOL ONLY

WHITE

CN-DISP 1

WHT

RY-HT

WHT

WHITE

WHT

RY-HOT

CR3

WHT

JP1

WHT

CN-DISP 1

WHITE

CN-DIS

CN-EV2

YELLOW

WHT

WHITE

M M

YELLOW

CN-NMODE

WHT

CN-NMODE 1

WHITE

CN-EV1

824

CN-HT

BLACK

1133

BLUE

CN-HOT

WHITE

CN-DISP 2

WHT

SENSOR

COMPLETE

(THERMISTOR)

DIS.T.TEMP.SENSOR

ELECTRO-

MAGNETIC COIL

(EXPAND VALVE)

ELECTRO-

MAGNETIC COIL

(EXPAND VALVE)

CASE

CRANK

HEATER

COIL

ELECTRO-

MAGNETIC

(4 WAY VALVE)

Resistance of Compressor Windings

BLK

WHT

CORE

WHT

Y/G

POWER SUPPLY

WHITE

ACN1

CORE

TERMINAL BOARD

CORE

BLACK

ACL1

CORE

TERMINAL BOARD

30A 250V

FUSE 401

CN-COM

RED

PRIORITY MODE

PUMP DOWN

WIRING CHECK

OPERATION TEST

Y/G

GROUND PLATE

REMARKS

BLU: BLUE

BLK: BLACK

WHT: WHITE

RED: RED

YLW: YELLOW

GRY: GRAY

GRN: GREEN

Y/G: YELLOW/GREEN

ELECTRONIC CONTROLLER

(SUB)

BLU

WHT

BLK

TO INDOOR UNIT ATO INDOOR UNIT B

POWER SAVE

ELECTRONIC CONTROLLER

(DISPLAY)

Page 12

7. Electronic Circuit Diagram

FAN MOTOR

1000p

47k

WHT

IC18

TC4052B

WHT

16V

C212

16151413121110

VDD

X-COM

0Y2YY-C O M3Y1Y

1234567

13V

COMPRESSOR

BLU

YLW

RED

CORE

BLU

YLW

RED

WHITE

CN-FM1

DB3

BLK

REACTOR

WHITE

CONNECTOR

GRY BLK BLK

GRY

L1-I L2-I L2-O L1-O

GRY

AC-WHT

CORE

DB1

CT400

RY-C

RY-PWR

AC-BLK

FUSE1

PTC1

RY-AC

5V13V

T 3.15A

L 250V

PTC2

T 2.5A

FUSE2

10k

R253

DB2

L 250V

C276

R388

CORE

WHT

CN-WHT

BLK

CN-BLK

IC17

13V

16151413121110

VDD

TC4052B

0Y2YY-C O M3Y1Y

1234567

X-COM

INH

VEE

VSS

FG2

GRN

CORE

FG1

GRN

HIGH PRESSURE SW.

RED

BLUE

5.6k

R138

CN-PSW1

ELECTRONIC CONTROLLER

(MAIN)

WHITE

CN-DATA

WHITE

CN-DATA

INH

VEE

VSS

SW1

RY-HOT

CR3

JP1

LIQUID PIPE

SENSOR A

R338

15.8k

R333

15.8k

SW2

COOL ONLY

LIQUID PIPE

SENSOR B

SENSOR COMPLETE

6.3V

C241

WHITE

CN-TH3

6.3V

C232

RY-HT

13V

WHITE

CN-DISP 1

WHT

WHITE

CN-DISP 1

SW3

SW4

ON OFF

161514

B1HBGFF00007

IC8

VCC

WHT

123

SW5

ON OFF

234

IC8

R370 10k

R371 10k

R372 10k

R375 10k

R374 10k

R373 10k

WHT

123

WHT

GAS PIPE

SENSOR A

R342

15.8k

R341

15.8k

IC8

13V

WHT

R304 1.2k

JP1

GREEN

GAS PIPE

B1HBGFF00007

WHITE

WHT

LED1

SENSOR B

SENSOR COMPLETE

6.3V

WHITE

C240

CN-TH4

6.3V

C239

IC15

116

215

314

413

710

VCC

10k

R147

10k

R146

10k

R386

10k

R256

CN-DISP 2

WHT

R307 1.2k

R306 1.2k

R305 1.2k

LED4

LED2

LED3

GREEN

13V

10k

R365

GND

WHT

WHITE

CN-NMODE 1

R308 1.2k

LED5

GREEN

R101

7.50k

R100

15.0k

R103

7.50k

D64

2SB1188

R309 1.2k

LED6

GREEN

WHITE

CN-TH1

1411161

C46

6.3V

SENSOR

C45

6.3V

C48

6.3V

CN-TH2

YELLOW

C47

6.3V

R102

4.99k

6.3V

C209

WHITE

CN-DIS

CN-EV2

YELLOW

D61

D62

D63

25V

C218

0.047u

D34

WHITE

CN-EV1

D57

D58

D59

D60

824

D33

Q25

CN-HT

BLACK

1133

BLUE

CN-HOT

COMPLETE

SENSOR

COMPLETE

SENSOR

COMPLETE

M M

CRANK

(THERMISTOR)

ELECTRO-

CASE

ELECTRO-

YELLOW

CN-NMODE

(THERMISTOR)

OUTLET TEMP.SENSOR

COND.TEMP.SENSOR

(THERMISTOR)

PIPE TEMP.SENSOR (DEF)

DIS.T.TEMP.SENSOR

MAGNETIC COIL

(EXPAND VALVE)

MAGNETIC COIL

(EXPAND VALVE)

HEATER

COIL

MAGNETIC

(4 WAY VALVE)

BLK

WHT

CORE

Y/G

POWER SUPPLY

WHITE

ACN1

CORE

TERMINAL BOARD

CORE

BLACK

ACL1

CORE

123

TERMINAL BOARD

30A 250V

FUSE 401

CN-COM

RED

13579

BLU

WHT

BLK

123

TO INDOOR UNIT ATO INDOOR UNIT B

ELECTRONIC CONTROLLER

(SUB)

POWER SAVE

ELECTRONIC CONTROLLER

(DISPLAY)

PRIORITY MODE

PUMP DOWN

WIRING CHECK

OPERATION TEST

Y/G

GROUND PLATE

Page 13

8. Printed Circuit Board

8.1 Main Printed Circuit Board

CN- DATA

CN-HT

CN-HOT

CN-EV1

CN-TH1

CN-EV2 CN-DIS

CN-TH3

CN-TH2

CN-TH4 CN-PSW1

CN-FM1

Page 14

8.2 Noise Filter Printed Circuit Board

CN-COM

CN- DATA

CN-WHT

CN-BLK

8.3 Display Printed Circuit Board

LED1

LED2

LED3

LED4

LED5

CN-DISP1

CN-NMODE1

CN-NMODE2

SW1

SW4

SW2

SW5 SW3

LED6

Page 15

9. Installation Information

9.1 Check Points

49.2 ft max.

82 ft

Total maximum pipe length: 164 ft

QUICK GUIDE PIPING AND ELECTRICAL SPECIFICATION

Indoor (ID) & Outdoor (OD) units: Possible Combination Patterns

Outdoor (OD): CU-2E18SBU Indoor (ID): 2 UNITS OF CSE9RKUAW

Outdoor (OD): CU-2E18SBU Indoor (ID): 2 UNITS OF CSE12RKUAW Outdoor (OD): CU-2E18SBU Indoor (ID): 1 UNIT OF CSE9RKUAW + 1 UNIT OF CS-E12RKUAW

Capacity

(Btu/h)

16700 R410A

Refrige-

rant

Piping size

Gas Liquid

Ø3/8”

(Ø9.52mm)

Ø1/4”

(Ø6.35mm)

Standard

pipe

length

24.6 ft

Max.

Eleva-

tion

See

Step 1

Min.

Max.

pipe

length

each ID

from

OD to

for

each

ID unit

unit

9.8 ft 82.0 ft 164.0 ft 65.6 ft

Max.

total

length

Min. total

pipe

length

for

additional

gas

Additional

refri-

ge-

rant

0.2

oz / ft

Power supply

208/230V

60 Hz

MCA 20A

MOP

25A

Power supply

wire size

AWG12 AWFG16

OD-ID

connection

wire size

Example:

If total piping length of all installed indoor units is at 68.6 ft, the quantity of additional refrigerant should be 0.6 oz ......

(68.6 - 65.6) ft x 0.2 oz/ft = 0.6 oz.

Page 16

10. Installation Instruction

 IMPORTANT This product has been designed and manufactured to meet ENERGY STAR matched with appropriate coil components. However, proper refrigerant charge and proper air flow are critical to achieve rated capacity and efficiency. Installation of this product should follow the manufacturer’s refrigerant charging and air flow instructions. Failure to confirm proper charge and airflow may reduce energy efficiency and shorten equipment life.

10.1 Accessories Supplied with Outdoor Unit

 The following parts are supplied as accessories with each outdoor unit.

Check that all accessory parts are present before installing the outdoor unit.

HEAT PUMP-TYPES ONLY

Part name Qty. Diagram Application

criteria for energy efficiency when

Drain elbow 1

For connecting the drain pipe

10.2 Cutting and Flaring the Piping

1 Please cut using pipe cutter and then remove the burrs. 2 Remove the burrs by using reamer. If burrs is not removed, gas leakage may be caused.

Turn the piping end down to avoid the metal powder entering the pipe.

3 Please make flare after inserting the flare nut onto the copper pipes.

1. To cut

Point down

2. To remove burrs

Pipe

Reamer

Bar

Clamp handle

3. To ﬂ are

Handle

Yo k e

Core

Red arrow mark

Bar

0 –

/32"

(0-0.5 mm)

Copper pipe

When properly ﬂ ared, the internal surface of the ﬂ are will evenly shine and be of even thickness. Since the flare part comes into contact with the connections, carefully check the ﬂ are ﬁ nish.

Improper ﬂ aring

Inclined Surface

damaged

Cracked Uneven

thickness

Page 17

10.3 Select the Best Location

10.3.1 Outdoor Unit

 If an awning is built over the unit to prevent direct

sunlight or rain, be careful that heat radiation from the condenser is not obstructed.

 There should not be any animal or plant which

could be affected by hot air discharged.

 Keep the spaces indicated by arrows from wall,

ceiling, fence or other obstacles.

 Do not place any obstacles which may cause a

short circuit of the discharged air.

 Recommended installation height for outdoor unit

should be above the seasonal snow level.

Refrigerant piping size

Outdoor Unit CU-2E18**

Liquid - side ø1/4" (ø6.35 mm) thickness 1/32" (t0.8 mm)

Gas - side ø3/8" (ø9.52 mm) thickness 1/32" (t0.8 mm)

Outdoor Unit CU-2E18**

Min. total piping length for additional gas 65.6 ft (20 m)

 If total piping length of all indoor units exceeds the

minimum length listed above, additionally charge with 0.2 oz (20 g) of refrigerant (R410A) for each additional feet (meter) of piping.

Allowable piping length

Outdoor Unit CU-2E18***

Allowable piping length of each indoor unit (min. ~ max.) 9.8 ft ~ 82.0 ft (3 m ~ 25 m)

Allowable total piping length of all indoor units 164.0 ft (50 m) or less

Height difference between indoor and outdoor units

Height difference between indoor units

Outdoor unit located on upper side

Outdoor unit located otherwise

Outdoor unit located on upper side

Outdoor unit located otherwise

Outdoor Unit Installation Diagram

 This illustration is for explanation purposes only. * Note:

Respective indoor unit installation procedure shall refer to instruction manual provided in the indoor unit packaging.

Installation parts you should purchase (

It is advisable to avoid more than 2 blockage directions. For better ventilation & multiple-outdoor installation, please consult authorized dealer/specialist.

Power supply cord ( (Conduit)

Connection cable ( (Conduit)

Additional drain hose (

" (6.35 mm)

Liquid side piping (

/8" (9.52 mm)

Gas side piping (

49.2 ft (15 m) or less

24.6 ft (7.5 m) or less

49.2 ft (15 m) or less

)

Outdoor unit located on upper side

Outdoor unit

Outdoor unit located otherwise

Indoor unit

Outdoor unit

roodnItinu roodn

tinu

Outdoor unit

Page 18

Outdoor Unit Installation Guidelines

 Where a wall or other obstacle is in the path of outdoor unit’s intake or exhaust airflow, follow the installation

guidelines below.

 For any of the below installation patterns, the wall height on the exhaust side should be 47 1/4" (1200 mm) or

less.

Wall facing one side

More than 3 15/16" (100)

/4" (1200)

or less

More than

" (1000)

Walls facing two side Walls facing three side

/16"

More than

Top view

/8" (1000)

" (100)

Unit : inch (mm)

More than

/16" (100)

More than

/16" (100)

weiv poTweiv ediS

More than

" (1000)

More than

" (300)

More than

3 (100)

10.4 Install the Outdoor Unit

 After selecting the best location, start installation

to Indoor/Outdoor Unit Installation Diagram. 1 Fix the unit on concrete or rigid frame firmly

and horizontally with bolt nut (ø13/32" (ø10 mm)).

2 When installing on a roof, please consider

strong winds and earthquakes.

3 Please fasten the installation stand firmly with

bolt or nails.

10.5 Connect the Piping

 Remove the control board cover (resin) from the

outdoor unit by loosening three screws.

Connecting the Piping to Outdoor Unit

Decide piping length and then cut by using pipe cutter. Remove burrs from cut edge. Make flare after inserting the flare nut (locate at valve) onto the copper pipe. Align center of piping to valves and then tighten with torque wrench to the specified torque as stated in the table.

Screws

Control Board Cover (Resin)

Liquid side

Gas side

Model A B C D

CU-2E18***

24 1/8"

(613 mm)

5 5/32"

(131 mm)

5/8"

(16 mm)

14 3/16"

(360.5 mm)

Do not overtighten, over tightening may cause gas leakage.

Piping size Torque

1/4" (6.35 mm) 13.3 Ibf•ft [18 N•m (1.8 kgf•m)]

3/8" (9.52 mm) 31.0 Ibf•ft [42 N•m (4.3 kgf•m)]

1/2" (12.7 mm) 40.6 Ibf•ft [55 N•m (5.6 kgf•m)]

5/8" (15.88 mm) 47.9 Ibf•ft [65 N•m (6.6 kgf•m)]

3/4" (19.05 mm) 73.8 Ibf•ft [100 N•m (10.2 kgf•m)]

Flare Nut

(Connection Pipe)

Torque Wrench for Flare Nut

Flare Nut

(Connection Pipe)

Female side

Applicable to Liquid and Gas side o CS-E9*** CS-E12*** CS-ME5*** CS-ME7*** CS-ME9***

Male side

Screw

Torque Wrench for Flare Nut

Gas Leak Checking

Pressure test to system to 400 PSIG with dry nitrogen, in stages. Thoroughly leak check the system. If the pressure holds, release the nitrogen and proceed to section 10.7.

Page 19

10.6 Evacuation of the Equipment

WHEN INSTALLING AN AIR CONDITIONER, BE SURE TO EVACUATE THE AIR INSIDE THE INDOOR UNIT AND PIPES in the following procedure.

1 Connect a charging hose with a push pin to

the Low side of a charging set and the service

Indoor Unit

port of the gas side 3-way valve.

2 Connect the micron gauge between vacuum

pump and service port of outdoor units.

3 Turn on the power switch of the vacuum pump

and make sure that connect digital micron gauge and to pull down to a value of 500 microns.

Indoor Unit

4 To make sure micron gauge a value

500 microns and close the low side valve of the charging set and turn off the vacuum pump.

5 Disconnect the vacuum pump house from the

service port of the 3-way valve.

6 Tighten the service port caps of gas side

3-way valve at a torque of 13.3 Ibf•ft (18 N•m) with a torque wrench.

7 Remove the valve caps of both of the 2-way

Vac uum

pump

valve and 3-way valve. Position both of the valves to “Open” using a hexagonal wrench (5/32" (4 mm)).

8 Mount valve caps onto the 2-way valve and

3-way valve. o Be sure to check for gas leakage.

 If micron gauge value does not descend 500 microns, take the following measures:

- If the leak stops when the piping connections are tightened further, continue working from step 3.

- If the leak does not stop when the connections are retightened, repair location of leak.

- Do not release refrigerant during piping work for installation and reinstallation.

- Take care when handling the liquid refrigerant, it may cause frostbite.

Tube connector

Liquid side

Tube connector

Gas side

Tube connector

Liquid side

Tube connector Gas side

Liquid side 3-way valve

Gas side 3-way valve

Outdoor unit

Page 20

10.7 Connect the Cable to the Outdoor Unit

1 Remove Control Board Cover (Metal) by

loosening 2 screws.

2 Remove Valve Cover (Metal) by loosening

2 screws. 3 Remove Plugs. 4 Fix the conduit connectors to the knock out

holes with lock-nuts, then secure them. 5 Connecting wire between indoor unit and

outdoor unit should be UL listed or CSA

approved 4 conductor wires minimum AWG16

in accordance with local electric codes. 6 Wire Connection to the power supply

(208/230V 60Hz) through circuit breaker.

o Connect the UL listed or CSA approved

wires minimum AWG12 to the terminal board, and connect to other end of the wires to circuit breaker.

7 Connect the power supply cord and

connecting wires between indoor unit and

outdoor unit according to the diagram as

shown.

Indoor Unit A

Terminal

208/230V min AWG16

Grounding wire min AWG16

Outdoor Unit

Terminal

Unit A

Screws

Valve Cover

Screws

Lock Nuts

(Metal)

Side Panel

To p Pa n e l

Control Board Cover (Metal)

Connectors

Plugs

Knock Out Holes

Unit B

Unit A

Indoor Unit B

Terminal

208/230V min AWG16

Grounding wire min AWG16

Unit B

L1 L2

Disconnect Switch Field supply

Grounding wire

Power Supply Single Phase 208/230V 60Hz min AWG12

Power Supply

Cord

Indoor & outdoor

connection wire

Indoor Unit A

8 For wire stripping and connection requirement, refer to the diagram below. 9 Secure the power supply cord and connection cables onto the control board with the holder. 10 Attach the control board cover (metal and resin) and valve cover back to the original position with screw.

WIRE STRIPPING AND CONNECTING REQUIREMENT

Wire stripping

" ±

(10±1 mm)

No loose strand when inserted

Indoor/outdoor connecting terminal board

/32" (5 mm)

or more

(gap between

wires)

Conductor fully

inserted

ACCEPT PROHIBITED PROHIBITED

Conductor over

inserted

Conductor not

fully inserted

This equipment must be properly earthed.

o Earth wire must be Yellow/Green (Y/G) in colour and longer than other AC wires for safety reasons.

Indoor Unit B

10.8 Heat Insulation

Use a material with good heat-resistant properties as the heat insulation for the pipes. Be sure to insulate both the gas-side and liquid-side pipes. If the pipes are not adequately insulated, condensation or water leakages may occur.

Liquid-side pipes

Gas-side pipes

Material shall withstand 248°F (120°C) or higher

Page 21

11. Operation Control

11.1 Cooling Operation

11.1.1 Outdoor fan control

 When cooling operation is enabled, based on outdoor ambient temperature, fan motor control will be adjusted

according to figure below:

59°F

8.6°F

OD temp.

RPM free

RPM controlled

Stopped

55.4°F

11.1.2 Annual Cooling control

 This control is to enable cooling operation when outdoor ambient temperature is low.  Control start conditions:

o Cooling operation is activated with compressor ON. o Outdoor ambient temperature is less than 59°F

 Control contents:

o When the above conditions are fulfilled, based on outdoor pipe temperature, the outdoor fan motor will

operate according to figure below:

93.2°F

75.2°F

66.2°F

RPM up

RPM unchanged

RPM down

Stopped

91.4°F

73.4°F

64.4°F

OD Pipe temp.

 To improve the judgment accuracy during annual cooling control, outdoor ambient temperature sampling for

2 minutes will be activated every 35 minutes under designated fan speed.

 Control stop conditions:

o When either one of the start conditions are not complied.

Page 22

11.2 Heating Operation

11.2.1 Outdoor fan control

 When heating operation is enabled, based on outdoor ambient temperature, fan motor control will be adjusted

according to figure below:

RPM controlled

57.2°F

RPM free

53.6°F

OD temp.

 To improve the judgment accuracy, indoor room temperature sampling starts when any indoor unit has stopped

capability supplied (heating thermo-off) during heating operation with compressor ON, outdoor unit will send signal to all thermo-off indoor units to ON fan motor and get room temperature sample.

 To prevent discharge temperature drop at indoor units which is ON when sampling the room temperature of

heating thermo-off units, the outdoor fan speed will be adjusted accordingly.

 However, if indoor room temperature is high compare to remote control setting temperature, sampling of

corresponding indoor unit will be cancelled.

11.2.2 Powerful Operation 1

 During cooling operation, this control is to concentrate outdoor unit capability to the powerful operation enabled

indoor unit by temporary stop the capability supply to low load demand indoor units.

 Operation start condition:

o Powerful operation ON for targeted indoor unit

 Operation content:

o If other indoor units (where Powerful operation are OFF) achieve setting temperature continuously for

1 minute after received powerful command from indoor unit, then capability supply to other indoor units are

stopped for minimum 3 minutes.

Capability supply stop period follows powerful operation period.

 Operation stops when comply either one of the following conditions:

o When other indoor units (where Powerful operation are OFF) is lower than setting temperature. o When the powerful operation is OFF for all indoor units. o When Quiet operation received from 1 indoor unit. o When protection control starts.

11.2.3 Powerful Operation 2

 During cooling / heating operation, this control is to provide fast cooling / heating operation compare to normal

operation.

 Operation start if all condition below are complied:

o Powerful operation ON for indoor unit. o Not under Annual Cooling control.

 Operation content:

o Outdoor fan speed will adjust automatically. o Compressor frequency will adjust automatically.

 Operation stop when comply either one of the follow conditions:

o When the powerful operation is OFF for all indoor units. o When annual cooling control activated.

Page 23

12. Simultaneous Operation Control

1 Operation modes which can be selected

using the remote control unit:

Automatic, Cooling, Soft Dry, Heating, e-ion operation mode.

2 Types of operations modes which can be

performed simultaneously

o Cooling operation and cooling, Soft Dry

or e-ion operation

o Heating operation and heating operation

3 Types of operation modes which cannot be

performed simultaneously

o While a cooling operation is in progress,

a heating operation cannot be performed by an indoor unit in another room. In the room where the operation button for cooling was pressed first, the operation is continued. In the room where the operation button for heating was pressed afterward, the operation lamp of the indoor unit blinks, where the attempt is made to establish the heating operation. Its fan is stopped, and the air does not discharged.

o While a heating operation is in progress,

a cooling operation cannot be performed by an indoor unit in another room. In the room where the operation button for heating was pressed first, the operation is continued. In the room where the operation button for cooling was pressed afterward, the operation lamp of the indoor unit blinks, where the attempt is made to establish the cooling operation. Its fan is stopped, and the air does not discharged.

4 Operation mode priority control

o The operation mode designated first by

the indoor unit has priority.

o If the priority indoor unit stops operation

or initiates the e-ion operation, the priority is transferred to other indoor units.

Page 24

13. Protection Control

13.1 Freeze Prevention Control (Cool)

 When received freeze prevention signal from indoor unit, the compressor frequency changes according to indoor

heat exchanger temperature.

 When indoor unit request capability OFF due to freeze condition , immediately the capability supply to targeted

indoor unit stops.

13.2 Dew Prevention Control (Cool)

 When received dew prevention signal from indoor unit, the compressor frequency changes according to indoor

intake temperature and indoor heat exchanger temperature.

13.3 Electronic Parts Temperature Rise Protection 1 (Cool)

 This control prevents electronic parts temperature rise during cooling overload condition.  Start conditions:

o Outdoor ambient temperature is at protection region as shown in figure below:

Protection Region

89.6°F

Normal Region

86°F

OD temp

o Outdoor unit total current is above 5.5A

 Control content

o Outdoor fan speed is adjusted accordingly.

 Control stop condition

o When outdoor ambient temperature is back to normal region.

 During this control, outdoor fan speed does not reduce for Quiet operation.

13.4 Electronic Parts Temperature Rise Protection 2 (Cool)

 This control prevents electronic parts temperature rise during cooling/dry operation.  Start conditions:

o Total current is at protection region as shown in figure below:

Protection Region

4.7A

Normal Region

Total current

 Control content

o Outdoor fan speed is adjusted accordingly.

 Control stop conditions

o When total current is back to normal region.

 During this control, outdoor fan speed does not reduce for Quiet operation.

3.3A

Page 25

13.5 Cooling Overload Control (Cool)

 This control detect outdoor pipe temperature and perform the compressor frequency restriction during cooling

operation.

147.2°F

140°F

OD Pipe tem

Comp stop

Comp freq restricted

Comp freq free

134.6°C

13.6 Heating Overload Control (Heat)

 This control detect indoor pipe temperature and perform the compressor frequency restriction during heating

operation.

140°F

127.4°F

118.4°F

ID Pipe tem

 This control detect outdoor ambient temperature and perform the fan speed adjustment during heating operation.

Comp stop

Comp freq restricted

Comp freq maintain

Comp freq free

RPM controlled

53.6°F

50°F

RPM free

OD temp

13.7 Extreme Low Temperature Compressor Low Pressure Protection Control (Heat)

 This control is to prevent low pressure drops too low during extremely low outdoor ambient temperature to

improve the compressor reliability.

 During heating operation, when outdoor ambient temperature is in Zone 1, this control will be activated.

Compressor frequency restriction will be based on outdoor piping temperature.

Comp freq

free

Zone 0

26.6°F

23°F

Zone 1

OD temp

-9.4°F

-14.8°F

Comp freq

restricted

Comp freq

stop

OD pipe

-5.8°F

-11.2°F

Page 26

13.8 Deice Control

 When outdoor pipe temperature and outdoor air temperature is low, deice operation starts where indoor fan

motor and outdoor fan motor stop, indoor unit horizontal vane close and operation LED blink with compressor ON.

13.9 Time Delay Safety Control (Restart Control)

 The compressor will not restart within three minutes after compressor is stopped.  This control is not applicable if the power supply reset or after deice condition.

13.10 30 seconds Force Operation

 Once the compressor starts operation, it will not stop its operation for 30 seconds in order to cycle back

compressor oil.

 However, it can be stopped using remote control or Auto OFF/ON button at indoor unit.

13.11 Total Current Control

 By referring to table below, during normal (default) operation, the running current refer to Hi values and during

Power Save Mode, the running current refer to Lo values.

 When the outdoor unit total running current (AC) exceeds X value, compressor frequency will decrease.  If the running current does not exceed X value for 5 seconds, compressor frequency will increase.  However, if total outdoor unit running current exceeds Y value, compressor will be stopped immediately for

3 minutes.

Operation Mode

Cooling/Soft Dry (A) 12.2 17.5

Cooling/Soft Dry (B) 11.5 17.5

Heating 13.2 17.5

X (A) Y (A)

CU-2E18SBU

43°C (109.4°F)

Outdoor Intake Temperature

42°C (107.6°F)

13.12 IPM (power transistor) Protection Control

 Overheating Prevention Control

o If IPM temperature rises to 176°F, outdoor fan speed will be increased. o When the IPM temperature rises to 203°F, compressor operation will stop immediately. o Compressor operation restarts when temperature decreases to 194°F. o If IPM temperature detected less than -22°F, IPM is judged as open circuit (“F96” is indicated).

 DC peak current control

o When IPM DC current exceeds set value of 30.0 ± 3.0 A, the compressor will stop. o If the DC peak current detected within 30 seconds after operation starts, compressor will restart after

1 minute.

o If the DC peak current detected 30 seconds or more after operation starts, compressor will restart after

2 minutes.

o Within 30 seconds after compressor restarts, if the DC peak current is exceeded set value continuously for

7 times, all indoor and outdoor relays will be cut off (“F99” is indicated).

 Error reset can be done by power supply reset.

Page 27

13.13 Compressor Protection Control (Gas leak detection control 1)

 Control start conditions

o For 5 minutes, the compressor continuously operates and total current is low. o During Cooling or Soft Dry operation:

Indoor intake temperature — indoor piping temperature is below 39.2°F.

o During Heating operation:

Indoor pipe temperature — indoor intake temperature is below 37.4°F.

o Not during deice control. o Compressor ON with maximum frequency.

 Control content

o Compressor stops (and restart after 3 minutes) o If the conditions above happen 4 times within 60 minutes, the unit will stop operation (“F91” is indicated).

13.14 Compressor Protection Control (Gas leak detection control 2)

 This control detect gas leakage condition to prevent compressor damage.  Control start condition

o All connected indoor units capability supply ON. o Compressor ON with maximum frequency. o Not during annual cooling. o Compressor discharge temperature high.

 Control content

o Compressor OFF during this control (“F91” is memorized in EEPROM) o If the above conditions happen 2 times within 60 minutes, indoor units’ Timer LED will blinks (“F91” is

indicated at all indoor units)

13.15 Valve Close Detection Control

 This control detects 3-way valve close condition to prevent damage to refrigerant cycle.  Start conditions:

o For all connected indoor units, if Indoor intake temperature — indoor piping temperature are between 28.4°F

and 35.6°F continuously for 5 minutes after compressor ON at first cooling operation.

o The first cooling operation is defined as cooling operation is ON for less than 8 minutes after new installation

or after pump down.

 Control content

o During this control, compressor stop, indoor units’ Timer LED will blink. (“F91” is indicated at indoor units)

 Error reset can be done by power supply reset or reset by using remote control.

13.16 Compressor Discharge High Pressure Protection Control

 This control protect by using high pressure switch during operation.  Start conditions

o High pressure switch is activated (from normally close to open) when outdoor operation mode is cooling or

heating during compressor running.

 Control 1 content

o Compressor stop when high pressure switch is opened and restart after high pressure switch closed. If this

condition happen 4 times within 30 minutes, “F94” is indicated.

o After 30 minutes, counter is reset if this condition does not happen for 4 times.

 Control 1 stop conditions

o Power supply reset o Reset by using remote control

Page 28

14. Servicing Mode

14.1 CU-2E18SBU

Fig. 1

JP1 (COOL

ONLY)

LED 1 LED 2

LED 3 LED 4

LED 5 LED 6

OFF ON

SW1 (PUMP DOWN)

SW2 (OPERATION TEST) SW3 (WIRING CHECK)

14.1.1 Pump down operation (SW1)

 Operate the pump down process according to the following procedure

o Confirm the valve on the liquid side and gas side are open. o Press PUMP DOWN button (SW1) on the Service PCB inside the outdoor unit for more than 5 seconds.

Pump down (cooling) operation is performed for 15 minutes.

o Set the liquid side 3 way valve to close position and wait until the pressure gauge indicates 1.45PSI

(0.1kg/cm

o Immediate set the gas side valve to close position and then press the PUMP DOWN button (SW1) to stop the

pump down operation. NOTE: Pump down operation will stop automatically after 15 minutes if PUMP DOWN switch (SW1) is not pressed again. Pump down operation is not started within 3 minutes after compressor is stopped.

LED 2 3 4 5 Message

Status

Pump down operation end

G).

Pump down operation in progress

3 minutes before operation end

2 minutes before operation end

1 minute before operation end

Liquid shut-off valve

Hexagonal wrench

: Flashing

Gas shut-off valve

Valve lid

14.1.2 Test Run operation

 Test operation can be carried out using TEST OPERATION button (SW2) on the Service PCB inside the outdoor

unit.

 For Cooling test, press the TEST OPERATION button (SW2) for 5 seconds or more but less than 10 seconds,

LED1 and LED 2 will illuminate when shift into cooling test operation.

 For Heating test, press the TEST OPERATION button (SW2) for more than 10 seconds, LED 1 and LED 3 will

illuminate when shift into heating test operation.

 Press the TEST OPERATION button (SW2) again to cancel test operation.

Page 29

14.1.3 Wiring Error check

 The unit capable to correct the wiring error automatically by following procedures.

o Confirm the valve on the liquid side and gas side is open. o Press WIRING CHECK button (SW3) on the Service PCB inside the outdoor unit for more than 10 seconds

to start wiring check operation.

o Wiring check process will complete in approximately 10 minutes. However, wiring check operation will not

start within 3 minutes after compressor is stopped. When outdoor air temperature is less than 41°F or unit has abnormality, wiring check will not start. (See NOTE 2)

 The LED 2 to LED 6 in Service PCB inside the outdoor unit indicate the possibility of the correction as shown in

the table below:

LED 2 3 4 5 6 Message

Room A B - - -

All flashing Automatic correction impossible

LED2, 4, 6 and LED 3, 5

alternatively flashing

Flashing one after

Status

another

Other than above Unit has abnormality (NOTE 4)

Wiring check in progress

Automatic correction completed

 If automatic correct is impossible, check the

indoor unit wiring and piping manually.

NOTE:

1 For two rooms connection, LED 4 and 5 are not illuminated after wiring operation complete. 2 If the outdoor air temperature is less than 41°F or unit has abnormality, wiring operation will not start. 3 After wiring check operation is complete, LED indication will illuminated until normal operation starts. 4 Follow the product diagnosis procedure. 5 When LED 1 only illuminate, indicates that outdoor unit is operating normally.

Wiring automatic correct example

Terminal block

From Room B to the “living room”

LED lighting sequence after a wiring correction.

Order of LED flashing: 3--> 2

From Room A to the “bedroom”

Wiring error check

14.1.4 Power Save Mode

 Power Save Mode can be enabled by pushing POWER SAVE switch (SW4) to ON before power supply ON.  When Power Save Mode is ON, the unit can be operate at lower running current where the breaker capacity not

achieve the requirement.

14.1.5 Mode priority function

 Mode priority function can be enabled by pushing MODE PRIORITY switch (SW5) to ON before power supply

ON.

 When Mode Priority Function is ON, the mode priority is given to higher capacity indoor units.

14.1.6 Cooling only function

 The unit capable to limit the operation mode to Cooling Mode only (Heating mode disabled) by cutting JP1

(COOL ONLY) before power supply ON.

 This function prevent wrong operation during the unit installed in server room.  This function could be disabled again by short the JP1 (COOL ONLY) before power supply ON.

Page 30

15. Troubleshooting Guide

15.1 Self Diagnosis Function

 The display screen of wireless remote control unit and the self-diagnosis LEDs (green) on the outdoor printed

circuit board in the outdoor unit can be used to identify the location of the problem. Refer to the table below to identify and solve the cause of the problem, and then re-start the air conditioner system.

 If the problem is solved and operation returns to normal.

LED 1 illuminates and others LED are off.

Diagnosis

display

H11 Indoor/outdoor

H12 Indoor unit

H15 Compressor

H16 Outdoor

H27 Outdoor air

H28 Outdoor heat

H32 Outdoor heat

H33 Indoor/

H36 Outdoor gas

Abnormality

protection

control

abnormal communication

capacity unmatched

temperature sensor abnormality

current transformer (CT) abnormality

temperature sensor abnormality

exchanger temperature sensor 1 abnormality

exchanger temperature sensor 2 abnormality

outdoor misconnection abnormality

pipe temperature sensor abnormality

LED 6 LED 5 LED 4 LED 3 LED 2 LED 1

O After

O 90s after

O O Continuous

O O ― ― Current transformer

O O Continuous

O O O Continuous

O Continuous

O O ― ― Indoor and outdoor

O O Continuous

Abnormality

judgement

operation for 1 minute

power supply

for 5s

Protection

operation

Indoor fan only operation can start by entering into force cooling operation

― Total indoor

― Compressor

― Outdoor air

― Outdoor heat

Heating protection operation only

Indoor/outdoor communication not establish

capability more than maximum limit or less than minimum limit, or number of indoor unit less than two.

temperature sensor open or short circuit

faulty or compressor faulty

temperature sensor open or short circuit

exchanger temperature sensor 1 open or short circuit

exchanger temperature sensor 2 open or short circuit

rated voltage different

Outdoor gas pipe temperature sensor open or short circuit

Problem Check location

 Indoor/outdoor

wire terminal

 Indoor/outdoor

PCB

 Indoor/outdoor

connection wire

 Indoor/outdoor

connection wire

 Indoor/outdoor

PCB

 Specification and

combination table in catalogue

 Compressor

temperature sensor lead wire and connector

 Outdoor PCB

faulty or compressor faulty

 Outdoor air

temperature sensor lead wire and connector

 Outdoor heat

exchanger temperature sensor 1 lead wire and connector

 Outdoor heat

exchanger temperature sensor 2 lead wire and connector

 Indoor and

outdoor units check

 Outdoor gas pipe

temperature sensor lead wire and connector

Page 31

Diagnosis



display

Abnormality

protection

control

LED 6 LED 5 LED 4 LED 3 LED 2 LED 1

Abnormality

judgement

Protection

operation

Problem Check location

H37 Outdoor liquid

pipe temperature sensor abnormality

H64 Outdoor high

pressure sensor abnormality

H97 Outdoor fan

motor mechanism lock

H98 Indoor high

pressure protection

H99 Indoor

operating unit freeze protection

F11 4-way valve

switching abnormality

F17 Indoor standby

units freezing abnormality

F90 Power factor

correction (PFC) circuit protection

F91 Refrigeration

cycle abnormality

F93 Compressor

abnormal revolution

F94 Compressor

discharge pressure overshoot protection

F95 Outdoor

cooling high pressure protection

O O O Continuous

for 5s

O O Continuous

for 1 minutes

O O O 2 times

happen within 30 minutes

O O O ― ― Indoor high pressure

O O O ― ― Indoor freeze

O O O O 4 times

happen within 30 minutes

O 3 times

happen within 40 minutes

O O 4 times

happen within 10 minutes

O O 2 times

happen within 20 minutes

O O O 4 times

happen within 20 minutes

O O 4 times

happen within 30 minutes

O O O 4 times

happen within 20 minutes

Cooling protection operation only

― High pressure sensor

― Outdoor fan motor

― 4-way valve

― Wrong wiring and

― Power factor

― Refrigeration cycle

― Compressor

― Cooling high

Outdoor liquid pipe temperature sensor open or short circuit

open circuit during compressor stop

lock or feedback abnormal

protection (Heating)

protection (Cooling)

switching abnormal

connecting pipe, expansion valve leakage, indoor heat exchanger sensor open circuit

correction circuit abnormal

abnormal

abnormal revolution

discharge pressure overshoot

pressure protection

Outdoor liquid

pipe temperature sensor lead wire and connector

High pressure

sensor

 Lead wire and

connector

Outdoor fan

motor lead wire and connector

 Fan motor lock or

block

Check indoor

heat exchanger

 Air filter dirty  Air circulation

short circuit

Check indoor

heat exchanger

 Air filter dirty  Air circulation

short circuit

4-way valve

 Lead wire and

connector.

Check indoor/

outdoor connection wire and pipe

 Indoor heat

exchanger sensor lead wire and connector

 Expansion valve

lead wire and connector.

Outdoor PCB

faulty

Insufficient

refrigerant or valve close

Power transistor

module faulty or compressor lock

Check

refrigeration system

Check

refrigeration system

 Outdoor air

circuit

Page 32

Diagnosis

display

Abnormality

protection

control

LED 6 LED 5 LED 4 LED 3 LED 2 LED 1

Abnormality

judgement

Protection

operation

Problem Check location

F96 Power

transistor module overheating protection

F97 Compressor

overheating protection

F98 Total running

current protection

F99 Outdoor direct

current (DC) peak detection

O O O 4 times

happen within 30 minutes

O O O O 3 times

happen within 30 minutes

O O 3 times

happen within 20 minutes

O O O Continuous

happen for 7 times

― Power transistor

module overheat

― Compressor

overheat

― Total current

protection

― Power transistor

module current protection

 PCB faulty  Outdoor air

circuit (fan motor)

 Insufficient

refrigerant

 Check

refrigeration system

 Power source or

compressor lock

 Power transistor

module faulty or compressor lock

LED 1 illuminate is indicated that outdoor unit is operating normally. If the LED 1 is switched off or flashing, check the power supply and self-diagnosis indication.

------ Illuminate

O ------ Flashing

Blank ------ OFF

Page 33

16. Disassembly and Assembly Instructions

High Voltage are generated in the electrical parts area by the capacitor. Ensure that the capacitor has discharged sufficiently before proceeding with repair work. Failure to heed this caution may result in electric shocks.

16.1 Outdoor Unit Removal Procedure

Caution! When handling electronic controller, be careful of electrostatic discharge.

16.1.1 Removing the Cabinet Top Plate and Cabinet Front Plate

1 Remove the cabinet top plate (remove the

8 screws).

2 Remove the 8 screws (1 on the center, 3 at

the top and 4 at the bottom) securing the cabinet front plate, release the 2 hooks (1 each at the left and right), and pull the cabinet front plate toward front side.

WARNING

Tabs

16.1.2 Remove the Control Board Cover and Particular Plates

3 Remove the control board cover (remove

3 screws).

4 Remove the particular plate (remove

2 screws).

5 Remove the particular plate (remove

2 screws).

Page 34

16.1.3 Removing the Control P.C. Board

6 Remove the drip proof cover. 7 Disconnect the connectors (lead wires of the

compressor, sensor, and others). 8 Remove the screw at the right side of the

control box, and pull out the entire control box. 9 Release the control P.C. Board tab to remove

the control P.C. Board.

16.1.4 Removing the Propeller Fan and Fan Motor

1 Follow the steps in 16.1.1 for removing the

cabinet top plate and cabinet front plate. 2 Remove the propeller fan by removing the nut

turning clockwise at its center.

Page 35

3 Disconnect the fan motor connector from the

control P.C. Board.

4 Loosen the 4 fan motor mounting screws then

remove the fan motor.

Page 36

17. Technical Data

Technical data provided are based on the air conditioner running under free frequency.

17.1 Cool Mode Performance Data

Unit setting: Standard piping length, Hi Fan, Cool mode at 60.8°F Voltage: 208-230V

Combination

(Capacity) (kW)

1.6 + 1.6

1.6 + 2.0

1.6 + 2.5

1.6 + 3.2

2.0 + 2.0

Outdoor

Air Temp.

°C (°F) DB

22 (71.6) 3.97 0.62 4.09 0.61 4.13 0.61 4.21 0.60 4.64 0.60 4.92 0.59

25 (77) 3.93 0.71 4.06 0.71 4.11 0.71 4.20 0.71 4.63 0.71 4.92 0.72

29 (84.2) 3.83 0.81 3.98 0.82 4.03 0.82 4.13 0.83 4.55 0.84 4.84 0.85

32 (89.6) 3.73 0.88 3.88 0.89 3.93 0.89 4.03 0.90 4.44 0.91 4.72 0.92

35 (95) 3.60 0.94 3.75 0.95 3.79 0.95 3.89 0.96 4.28 0.97 4.54 0.97

40 (104) 3.33 1.02 3.45 1.03 3.49 1.03 3.58 1.03 3.92 1.02 4.14 1.01

43 (109.4) 3.13 1.06 3.23 1.06 3.27 1.06 3.34 1.06 3.63 1.03 3.83 1.01

46 (114.8) 2.90 1.10 2.98 1.08 3.01 1.08 3.07 1.07 3.31 1.02 3.47 0.98

22 (71.6) 4.45 0.72 4.59 0.71 4.63 0.70 4.72 0.70 5.20 0.69 5.51 0.68

25 (77) 4.40 0.82 4.56 0.82 4.61 0.82 4.71 0.82 5.19 0.82 5.51 0.83

29 (84.2) 4.30 0.94 4.46 0.95 4.52 0.95 4.62 0.95 5.10 0.97 5.42 0.98

32 (89.6) 4.18 1.02 4.35 1.03 4.40 1.03 4.51 1.04 4.98 1.06 5.29 1.07

35 (95) 4.04 1.09 4.20 1.10 4.25 1.10 4.36 1.11 4.80 1.12 5.09 1.13

40 (104) 3.73 1.18 3.87 1.19 3.92 1.19 4.01 1.19 4.39 1.18 4.64 1.17

43 (109.4) 3.50 1.23 3.62 1.23 3.67 1.22 3.75 1.22 4.07 1.19 4.29 1.16

46 (114.8) 3.25 1.27 3.34 1.25 3.38 1.25 3.44 1.24 3.71 1.17 3.89 1.13

22 (71.6) 5.07 0.89 5.23 0.87 5.28 0.87 5.38 0.86 5.92 0.85 6.28 0.84

25 (77) 5.02 1.01 5.19 1.01 5.25 1.01 5.37 1.01 5.92 1.02 6.28 1.02

29 (84.2) 4.90 1.16 5.08 1.17 5.15 1.17 5.27 1.18 5.82 1.20 6.18 1.21

32 (89.6) 4.76 1.25 4.95 1.27 5.02 1.27 5.14 1.28 5.67 1.30 6.02 1.32

35 (95) 4.60 1.34 4.78 1.35 4.85 1.36 4.97 1.37 5.47 1.38 5.80 1.39

40 (104) 4.25 1.46 4.41 1.47 4.46 1.47 4.57 1.47 5.00 1.46 5.29 1.45

43 (109.4) 4.00 1.52 4.13 1.51 4.18 1.51 4.27 1.51 4.64 1.47 4.89 1.44

46 (114.8) 3.71 1.56 3.81 1.55 3.85 1.54 3.92 1.53 4.23 1.45 4.43 1.40

22 (71.6) 5.92 1.09 6.10 1.07 6.16 1.07 6.28 1.05 6.91 1.04 7.33 1.03

25 (77) 5.86 1.24 6.06 1.24 6.13 1.24 6.26 1.24 6.90 1.25 7.33 1.25

29 (84.2) 5.71 1.42 5.93 1.43 6.01 1.44 6.15 1.44 6.79 1.47 7.21 1.48

32 (89.6) 5.56 1.54 5.78 1.56 5.86 1.56 6.00 1.57 6.62 1.60 7.03 1.61

35 (95) 5.37 1.64 5.58 1.66 5.66 1.67 5.80 1.68 6.38 1.69 6.77 1.70

40 (104) 4.96 1.79 5.15 1.80 5.21 1.80 5.34 1.81 5.84 1.79 6.17 1.77

43 (109.4) 4.66 1.86 4.82 1.86 4.88 1.85 4.98 1.85 5.42 1.80 5.71 1.76

46 (114.8) 4.33 1.92 4.45 1.89 4.49 1.89 4.57 1.87 4.93 1.78 5.17 1.71

22 (71.6) 4.92 0.85 5.07 0.84 5.12 0.83 5.22 0.82 5.74 0.81 6.09 0.81

25 (77) 4.87 0.97 5.04 0.97 5.09 0.96 5.20 0.96 5.74 0.97 6.09 0.98

29 (84.2) 4.75 1.11 4.93 1.12 4.99 1.12 5.11 1.13 5.64 1.15 5.99 1.16

32 (89.6) 4.62 1.20 4.81 1.21 4.87 1.22 4.99 1.23 5.50 1.25 5.84 1.26

35 (95) 4.46 1.28 4.64 1.30 4.70 1.30 4.82 1.31 5.31 1.32 5.63 1.33

40 (104) 4.12 1.40 4.28 1.40 4.33 1.40 4.43 1.41 4.85 1.39 5.13 1.38

43 (109.4) 3.87 1.45 4.01 1.45 4.05 1.45 4.14 1.44 4.50 1.40 4.75 1.37

46 (114.8) 3.60 1.50 3.70 1.48 3.73 1.47 3.80 1.46 4.10 1.39 4.30 1.34

16 (60.8) 17.5 (63.5) 18 (64.4) 19 (66.2) 22 (71.6) 24 (75.2)

TC IP TC IP TC IP TC IP TC IP TC IP

Indoor Air Temp. °C (°F) WB

Page 37

Combination

(Capacity) (kW)

2.0 + 2.5

2.0 + 3.2

2.5 + 2.5

2.5 + 3.2

3.2 + 3.2

Outdoor

Air Temp.

°C (°F) DB

22 (71.6) 5.55 1.02 5.72 1.01 5.78 1.00 5.89 0.99 6.48 0.98 6.88 0.97

25 (77) 5.49 1.16 5.68 1.16 5.75 1.16 5.87 1.16 6.48 1.17 6.88 1.18

29 (84.2) 5.36 1.33 5.56 1.35 5.63 1.35 5.77 1.36 6.37 1.38 6.76 1.40

32 (89.6) 5.22 1.45 5.42 1.46 5.49 1.47 5.63 1.48 6.21 1.50 6.59 1.52

35 (95) 5.03 1.55 5.24 1.56 5.30 1.57 5.44 1.58 5.99 1.59 6.35 1.60

40 (104) 4.65 1.68 4.83 1.69 4.89 1.69 5.00 1.70 5.48 1.68 5.79 1.67

43 (109.4) 4.37 1.75 4.52 1.74 4.57 1.74 4.67 1.74 5.08 1.69 5.36 1.66

46 (114.8) 4.06 1.80 4.17 1.78 4.21 1.78 4.29 1.76 4.63 1.67 4.85 1.61

22 (71.6) 5.98 1.09 6.16 1.08 6.22 1.07 6.35 1.06 6.98 1.05 7.41 1.04

25 (77) 5.92 1.25 6.12 1.24 6.19 1.24 6.33 1.24 6.98 1.25 7.41 1.26

29 (84.2) 5.77 1.43 5.99 1.44 6.07 1.44 6.22 1.45 6.86 1.48 7.29 1.49

32 (89.6) 5.62 1.55 5.84 1.56 5.92 1.57 6.07 1.58 6.69 1.61 7.10 1.62

35 (95) 5.42 1.65 5.64 1.67 5.71 1.68 5.86 1.69 6.45 1.70 6.84 1.71

40 (104) 5.01 1.80 5.20 1.81 5.26 1.81 5.39 1.82 5.90 1.80 6.24 1.78

43 (109.4) 4.71 1.87 4.87 1.87 4.93 1.86 5.03 1.86 5.48 1.81 5.77 1.77

46 (114.8) 4.37 1.93 4.50 1.91 4.54 1.90 4.62 1.88 4.98 1.79 5.22 1.72