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1 - 4

A

U-4LE1E5

220 ~ 240 V, Single phase, 50 Hz

4.84 kW, 21.0 A

25 A

5.64 kW, 24.5 A

35 A

6.45 kW, 28.0 A

35 A

U-5LE1E5

U-6LE1E5

C

D

B

E

F

G

3.80 MPa

2.70 MPa

2.70 MPa

3.5 k

g

U-4LE1E8

380 / 400 / 415 V 3N ~ 50 Hz

5.62 kW, 8.5 A

20 A

6.61 kW, 10.0 A

20 A

7.94 kW, 12.0 A

20 A

U-5LE1E8

U-6LE1E8

3.80 MPa

3.5 k

g

Panasonic Corporation

:
:

Made in China

Multi Type Air Conditioner

Model Name Various

Various

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1-1. Operating Range ...........................................................................................................2-2
1-2. Procedure for Selecting Models and Calculating Capacity ...........................................2-3
1-3. Tools Required for Installation (not supplied) ................................................................2-4
1-4. Accessories Supplied with Outdoor Unit .......................................................................2-4
1-5. Type of Copper Tube and Insulation Material ................................................................2-4
1-6. Additional Materials Required for Installation ................................................................2-4
1-7. Tubing Size ....................................................................................................................2-5
1-8. Straight Equivalent Length of Joints ..............................................................................2-5
1-9. Additional Refrigerant Charge .......................................................................................2-6
1-10. System Limitations ......................................................................................................2-6
1-11. Tubing Length ..............................................................................................................2-6
1-12. Check of Limit Density .................................................................................................2-7
1-13. Calculation of Actual Capacity of Indoor Unit ..............................................................2-8

2-1. System Example .........................................................................................................2-13
2-2. Example of Tubing Size Selection and Refrigerant Charge Amount ...........................2-15
2-3. Installing Distribution Joint ...........................................................................................2-17

3-1. General Precautions on Wiring ...................................................................................2-18
3-2. Recommended Wire Length and Wire Diameter for Power Supply System ................2-18
3-3. Wiring System Diagrams .............................................................................................2-19

4-1. Selecting the Installation Site for Outdoor Unit ............................................................2-27
4-2. Air Discharge Chamber for Top Discharge ..................................................................2-28
4-3. Installing the Unit in Heavy Snow Areas .....................................................................2-28
4-4. Precautions for Installation in Heavy Snow Areas .......................................................2-28
4-5. Dimensions of Air-Discharge Chamber .......................................................................2-29
4-6. Dimensions of Wind-proof Duct ...................................................................................2-35
4-7. Dimensions of Snow-Proof Vents ................................................................................2-37
4-8. Installing the Outdoor Unit ...........................................................................................2-41
4-9. Drainage Work .............................................................................................................2-41
4-10. Routing the Tubing and Wiring ..................................................................................2-41

* Refer to the 2WAY SYSTEM TECHNICAL DATA (TD831159)

5-1. Connecting the Refrigerant Tubing ..............................................................................2-42
5-2. Connecting Tubing Between Indoor and Outdoor Units ..............................................2-43
5-3. Insulating the Refrigerant Tubing .................................................................................2-43
5-4. Taping the Tubes ..........................................................................................................2-44
5-5. Finishing the Installation ..............................................................................................2-44

 Air Purging with a Vacuum Pump (for Test Run) Preparation ...................................2-45

7-1. Optional Distribution Joint Kit (CZ-P160BK2) ..............................................................2-47

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10

–10

–15

–5

0

5

10

15

20

25

30

35

50

45

15

14

16

20

25

30

10

15

20

25

30

35

–15

–20

–10

–5

0

5

10

15

18

20

25

Indoor air intake temp. °C (WB)

Indoor air intake temp. °C (DB)

Outdoor air intake temp. °C (DB)

Outdoor air intake temp. °C (WB)

46

40

Operating
range

Operating
range

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2 - 3

Select the model and calculate the capacity for each refrigerant system according to the procedure shown below.

Calculation of the indoor air-conditioning load

Calculate the maximum air-conditioning load for each room or zone.

Selection of an air conditioning system

Select the ideal air conditioning system for air conditioning of each room or zone.

Design of the control system

Design a suitable control system for the selected air conditioning system.

Preliminary selection of indoor and outdoor units

Make preliminary selections that are within the allowable range for the system.

...........

2-4 ~ 2-7

Check of the tubing length and elevation difference

Check that the length of refrigerant tubing and the elevation difference are within the allowable

ranges................................................................................................................................... 2-6, 7

Calculation of the corrected outdoor unit capacity

Capacity correction coefficient for model.................................................................................. 2-8

Capacity correction coefficient for tubing length and elevation difference.............................. 2-11

Heating capacity correction coefficient for frosting/defrosting................................................. 2-10

Calculation of the corrected capacity for each indoor unit 

Capacity correction coefficient for indoor temperature conditions............................................ 2-9

Capacity distribution ratio based on the tubing length and elevation difference.............2-9 ~ 2-11

Recheck of the actual capacity for each indoor unit

If the capacity is inadequate, reexamine the unit combinations.

Example 1: Increasing the outdoor unit capacity.....................................................................2-13

 Increasing the tubing size......................................................................................................... 2-5

Design of tubing

Create a tubing design which minimizes the amount of additional refrigerant charge as much as

possible........................................................................................................................... 2-4 ~ 2-7

Select the tubing size for the main tube (LA) up to the No. 1 distribution joint based on the rated

cooling capacity of the outdoor unit. Select tubing sizes after the distribution point based on the

total rated cooling capacity of the connected indoor units.

Calculation of additional refrigerant charge amount

Calculate the additional refrigerant charge from the diameters and lengths of the refrigerant 

tubing. ...................................................................................................................................... 2-6

Check the minimum indoor capacity (limit density) with respect to the amount of refrigerant. If the

limit density is exceeded, be sure to install ventilation equipment or take other corrective steps.... 2-7

Design of electrical wiring capacity

Select a wiring capacity according to the method of power supply......................................... 2-18

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