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U-5~48MX3
Urban Multi air conditioner
4PW16235-1C

Installation manual

7

6.3.

Example of connection

Example of connection

(Connection of 8 indoor units Heat pump 

system) 

Branc

h with line branc

h pipe

Branc

h with line branc

h pipe and header branc

h pipe

Branc

h with header branc

h pipe

One outdoor unit 

installed 

(U-5~16MX3)

When m

ultiple out-

door units installed  

(U-18~...MX3)

(*) If the system capacity is U-18MX3 or 

more

, re-read to the first outdoor br

anch as 

seen from the indoor unit.

Maxim

um 

allo

wab

le 

length

Betw

een outdoor and 

indoor units

Actual pipe length

Pipe length betw

een outdoor and indoor units  

150 m

[Example] unit 8:

 a+b+c+d+e+f+g+p

150 m

[Example] unit 6:

 a+b+h

150 m, unit 8:

 a+i+k

150 m

[Example] unit 8:

 a+i

150 m

Equiv

alent length

Equiv

alent pipe length betw

een outdoor and indoor units 

175 m (Assume equiv

alent pipe length of line br

anch pipe to be 0.5 m and of the header br

anch pipe to be 1.0 m.

 (f

or calculatio

n pur

poses))

T

otal e

xtension 

length

T

otal piping length from outdoor unit* to all indoor units 

300 m

Betw

een outdoor br

anch 

and outdoor unit (Only f

or 

U-18MX3 or more)

Actual pipe length

Piping length from outdoor br

anch to outdoor unit 

10 m.

 Appro

ximately length:

 max.

 13 m

Allo

wab

le 

height 

Betw

een outdoor and 

indoor units

Diff

erence in 

height

Diff

erence in height betw

een outdoor and indoor units (H1)

50 m (

40 m if outdoor unit is located in a lo

w

er position).

Betw

een indoor and indoor 

units

Diff

erence in 

height

Diff

erence in height betw

een adjacent indoor units (H2)

15 m

Betw

een outdoor and 

outdoor units

Diff

erence in 

height

Diff

erence in height betw

een outdoor unit (main) and outdoor unit (sub) (H3)

5 m

Allo

wab

le length after the branc

h

Actual pipe length

Pipe length from first refr

iger

ant br

anch kit (either line br

anch pipe or header br

anch pipe) to indoor unit 

40 m

[Example] unit 8:

 b+c+d+e+f+g+p

40 m

[Example] unit 6:

 b+h

40 m, unit 8:

 i+k

40 m

[Example] unit 8:

 i

40 m

Refrig

erant branc

h kit selection

Refr

iger

ant br

anch kits can only be used with R-410A.

Ho

w to select the line branc

h pipe

When using line br

anch pipe at the first br

anch counted from the outdoor unit side.

Choose from the f

ollo

wing tab

le in accordance with the capacity of the outdoor unit.

•F

or line br

anch pipes other than the fi

rst br

anch, select the proper branch kit model based on the total capacity 

inde

x.

Ho

w to select the header branc

h pipe

Choose from the f

ollo

wing tab

le in accordance with the total capacity of all the indoor units connected belo

w the 

header br

anch pipe

.

Note:

 250 type cannot be connected below the header br

anch pipe

.

Ho

w to c

hoose an outdoor branc

h kit (needed if the outdoor unit capacity type is 

U-18MX3 or 

more

.)

Choose from the f

ollo

wing tab

le in accordance with the number of outdoor units

.

Example of do

wnstream indoor units

[Example]

in case of line br

anch pipe C;

  indoor units 3+4+5+6+7+8

[Example]

in case of line br

anch pipe B;

 indoor units 7+8,

in case of header br

anch pipe;

  indoor units 1+2+3+4+5+6

[Example]

in case of header br

anch pipe;

indoor units 1+2+3+4+5+6+7+8

indoor  unit

line br

anch pipe

header br

anch pipe

a

AB

C

D

E

F

G

bcd

e

f

g

hi

j

k

l

m

n

12

34

56

7

8

H2

H1

P

H1

H2

a

i

b

cd

e

f

g

h

123456

k

j

78

A

B

a

H1

H2

cd

e

f

g

h

i

b

1234567

8

ab

c

d

e

f

g

8

H2

H1

H3

P

hi

j

k

l

m

n

12

34

56

7

H1

a

i

b

cd

e

f

g

h

123456

k

j

7

8

AB

H2

H1

H3

a

cd

e

f

g

i

h

b

123456

7

8

H2

s

r

t

r

10 m (Appro

ximately length:

 max.

 13 m)

s

10 m (Appro

ximately length:

 max:

 13 m)

t

10 m (Appro

ximately length:

 max 13 m)

Outdoor unit capacity type

Refrig

erant branc

h kit name

U-5MX3

CZ-P20BK12Q

U-8+10MX3

CZ-P29BK12Q

U-12~22MX3

CZ-P64BK12Q

U-24MX3

CZ-P75BK12Q

Indoor capacity type

Refrig

erant branc

h kit name

<200

CZ-P20BK12Q

200

x<290

CZ-P29BK12Q

290

x<640

CZ-P64BK12Q

>640

CZ-P75BK12Q

Indoor capacity type

Refrig

erant branc

h kit name

<290

CZ-P29HK12Q (Max.

 8 kit)

290

x<640

CZ-P64HK12Q (Max.

 8 kit)

>640

CZ-P75HK12Q (Max.

 8 kit)

Number of outdoor units

Branc

h kit name

2

CZ-32PJ1PQ

 (Max.

 4 kit)

3

CZ-48PJ1PQ

 (Max.

 8 kit)

Содержание U-5MX3XPQ

Страница 1: ...14MX3XPQ A U 16MX3XPQ A U 18MX3XPQ U 20MX3XPQ U 22MX3XPQ U 24MX3XPQ U 26MX3XPQ U 28MX3XPQ U 30MX3XPQ U 32MX3XPQ U 34MX3XPQ U 36MX3XPQ U 38MX3XPQ U 40MX3XPQ U 42MX3XPQ U 44MX3XPQ U 46MX3XPQ U 48MX3XPQ...

Страница 2: ...D c H h h1 h2 1500 1 3 5 4 2 2 mm 6 3 1 0 0 0 1 0 0 0 1000 1 50 0 1500 1500 722 737 80 80 765 A B 1 2 4 5 6 7 3 7 1 6 1 2 4 5 3 5 3 3 2 1 5 3 3 1 3 3 4 4 4 4 9 4 4 5 7 7 5 5 2 5 5 5 5 6 2 6 9 2 2 6 6...

Страница 3: ...4 5 6 7 17 8 12 20 18 18 1 2 1 2 5 3 3 3 3 5 5 5 7 5 4 4 4 4 4 6 A B F2 F2 F1 F1 A B C Q1Q2 1 4 3 2 2 6 6 6 5 1 2 3 3 4 4 5 6 3 4 3 4 6 3 4 6 F2 F1 F2 F1 F2 F1 F2 F1 F2 F1 2 1 A B C A B C F1 F2 F1 F2...

Страница 4: ...16 17 18 5 1 7 10 3 2 9 6 6 6 6 7 4 11 8 6 6 6 6 6 6 7 7 9 8 4 11 6 6 1 10 3 2 6 6 6 6 18 TO IN D UNIT F1 F2 DS1 1 2 3 4 OFF ON O U T I N F1 F2 F1 F2 F1 F2 1 A B C A B C 1 DS1 1 2 3 4 OFF ON O U T I N...

Страница 5: ...0A refer to the product catalogs Total capacity quantity of indoor units U 5 48MX3 Urban Multi air conditioner Installation manual READ THIS MANUAL ATTENTIVELY BEFORE STARTING UP THE UNIT DO NOT THROW...

Страница 6: ...fer to figure 1 and choose one of the possibilities In case of an installation site where only the sides A B have obstacles the wall heights have no influence on any indicated service space dimensions...

Страница 7: ...uipment personal computers etc See figure 2 In extreme circumstances you should keep distances of 3 m or more and use conduit tubes for power and transmission lines In heavy snowfall areas select an i...

Страница 8: ...frigerant All field piping must be installed by a licensed refrigeration technician and must comply with relevant local and national regulations CAUTION TO BE TAKEN WHEN BRAZING REFRIGERANT PIPING Do...

Страница 9: ...recommended pipe size is not available stick to the original pipe diameter which may result in a small capacity decrease Cautions for installation of multiple outdoor units 1 The piping between the o...

Страница 10: ...e outdoor unit connecting pipe kits or between the outdoor units exceeds 2 m create a rise of 200 mm or more in the gas line within a length of 2 m from the kit If 2 m If 2 m A Unit A B Unit B C Unit...

Страница 11: ...t 8 i 40 m Refrigerant branch kit selection Refrigerant branch kits can only be used with R 410A How to select the line branch pipe When using line branch pipe at the first branch counted from the out...

Страница 12: ...unit is U 34MX3 and the piping lengths are as below R 30x0 25 10x0 17 10x0 11 40x0 054 49x0 022 6 7 538 R 7 5 kg A B C D Outdoor unit capacity type Piping size outer diameter Gas pipe Liquid pipe U 5...

Страница 13: ...backseat type Always use the special tool 3 Make sure to tighten the cap securely Closing stop valve 1 Remove the cap and turn the valve clockwise with the hexagon wrench 2 Securely tighten the valve...

Страница 14: ...e additional refrigerant to be charged on page 8 and fill in the amount in the Additional refrigerant charge label attached to the unit After the vacuum drying is finished charge the additional refrig...

Страница 15: ...oor unit installed See figure 9 1 Fully open the gas line stop valve oil equalizing line stop valve liquid line stop valve and valves A and B above must be left fully closed start the additional refri...

Страница 16: ...ection wiring to outdoor outdoor transmission F1 F2 outdoor indoor transmission F1 F2 outdoor multi transmission Q1 Q2 refer to 7 5 Examples on page 13 For connection wiring to the central remote cont...

Страница 17: ...n earth leak detector capable of handling high harmonics needs to be used in order to prevent malfunctioning of the earth leak detector itself Earth leak detector which are especially for protecting g...

Страница 18: ...torque for the terminal screws Precautions when connecting the ground When pulling the ground wire out wire it so that it comes through the cut out section of the cup washer An improper ground connect...

Страница 19: ...The interconnecting wiring between the outdoor units must be 30 m See the paragraph Fixing field line connection on page 14 A Electric wiring diagram Printed on the back of the electric box lid 1 Cut...

Страница 20: ...y For that purpose perform normal operation using the remote controller after the check operation Make sure that the circuit breaker on the power supply panel of the installation is switched off Attac...

Страница 21: ...entration level is required According to the appropriate European Standard the maximum allowed concentration level of refrigerant to a humanly space for R 410A is limited to 0 44 kg m3 Pay special att...

Страница 22: ...of the maximum concentration level then it will be necessary to revise the system Please consult your supplier NOTES amount of refrigerant in a single unit system amount of refrigerant with which the...

Страница 23: ...NOTES NOTES...

Страница 24: ...4PWEN16235 1C...

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