Mitsubishi CMY-Y104-G, CMY-Y108-G, CMY-Y1010-G Installation Manual

For use with R410A-compatible units

Table-1 Accesorry pipes

Pipe 1 Pipe 2 Pipe 3 Pipe 4 Pipe 5 Pipe 6 Pipe 7 Pipe 8 Pipe 9 Pipe 10 Pipe 11 Pipe 12

F (Connecting

Pipe Size)

ø9.52

ø15.88

ø12.7 ø6.35 ø12.7

ø19.05

ø22.2 ø28.58 ø15.88

ø9.52 ø19.05

ø22.2

Pipe Connection Specification

Quantity

G (Outer

Diameter)

ø12.7 ø19.05 ø19.05

ø9.52 ø15.88

ø25.4

ø12.7

ø6.35 ø15.88 ø19.05

CMY-Y104-G

1 1

–

3 3

– – – – – – –

CMY-Y108-G

1 1 1 6 5 1 1 1

– –

2 1

CMY-Y1010-G

1 2 2 5 6 1 1 1 3 5 1 1

Table-2 Accesorry plugs

Plug 1 Plug 2 Plug 3 Plug 4 Plug 5

H (Connecting Pipe Size)

ø6.35 ø9.52

ø12.7 ø15.88 ø19.05

Pipe Connection Specification

Quantity

CMY-Y104-G

1 1 1 1

–

CMY-Y108-G

2 2 2 2 1

CMY-Y1010-G

2 2 2 2 1

Table-4

Model

Condition

Model

200

Connectable indoor unit Connectable indoor unit capacity Total indoor unit capacity

1~13

Model

20~250

100~260

Model

250

1~16

Model

20~250

125~325

Model

300

1~16

Model

20~250

150~390

Model

350

1~20

Model

20~250

175~455

Model

400

1~22

Model

20~250

200~520

Model

450

1~24

Model

20~250

225~585

Model

500

1~24

Model

20~250

250~650

Model

550

1~24

Model

20~250

275~715

Model

600

1~32

Model

20~250

300~780

Model

650

1~32

Model

20~250

325~845

Model

700

1~34

Model

20~250

350~910

Model

750

1~34

Model

20~250

375~910

Model

800

1~34

Model

20~250

400~1040

HEADER FOR 4 BRANCHING (CMY-Y104-G) HEADER FOR 8 BRANCHING (CMY-Y108-G) HEADER FOR 10 BRANCHING (CMY-Y1010-G)

1 The following parts are contained in this box. Please identify the quantity with types.

Header for 4 branching (CMY-Y104-G)

1 Instruction 2 Header 3 Header

For liquid line

This sheet 1 sheet

For gas line

1 pc.

Header for 8 branching (CMY-Y108-G)

1 Instruction 2 Header 3 Header

For liquid line

For gas line

4 Pipe cover - 1

1pc.

4 Pipe cover - 1

5 Pipe cover - 2 6 Band

2 pcs. 2 pcs. 4 pcs.

5 Pipe cover - 2 6 Band

INSTALLATION MANUAL

Usable for 3/4 branching (* For 2 branching, use the optional header

for 2 branching.)

Sealing material

Usable for 5/6/7/8 branching

OPTIONAL PARTS

ODøG

IDøF

ODøG

IDøF

Pipe 1 – 7 Pipe 8 – 12

Caution

The incorrect selection of the type of branch pipe and the size of connecting pipe does not allow the air conditioner to provide the rated capacity. Please read this instruction manual carefully for correct mounting work.

This sheet 1 sheet

1 pc.

1pc.

Each 2 pcs. 4 pcs. 6 pcs.

Each 1 pc.

Plug 1 – 3 Plug 4·5

Header for 10 branching (CMY-Y1010-G)

1 Instruction 2 Header 3 Header

For liquid line

This sheet 1 sheet

For gas line

1 pc.

4 Pipe cover - 1

1pc. Each 2 pcs.

5 Pipe cover - 2 6 Band

4 pcs. 6 pcs.

Sealing material

Each 1 pc.

Usable for 9/10 branching

Note 1) Please prepare the following materials in addition to the items above. (1) Tape for sealing of insulation material (2) Extension pipe for refrigerant circuit. 2 Please observe the items below for the mounting work.

Table-3

Length

Height

difference

Item Pipe section

Total piping length

Farthest piping length (L)

Farthest piping length after 1st branching (R) Height difference between indoor and outdoor units (H) Height difference between indoor units (h)

A + B + C + D + a + b + c + d + e + f + g

A + C + D + g

or A + B + d

C + D + g

or B + d

Allowable value

300 m or less

150 m or less

40 m or less

—

50 m or less

15 m or less

1. Observe the limit on refrigerant piping length in Table-3.

2. Observe the limit on the connection of indoor units in Table-4.

3. Connect the header to piping or plug/pipe by brazing. Non-oxidized brazing should be applied.

4. The header is equipped with stopper. Push in the

Limitation on refrigerant piping length

Outdoor unit

stopper until the pipe to be connected stops.

5. No limitation is applied to the mounting posture.

6. Be careful that foreign materials like dust will not enter into the piping at the connection work.

1st branch (Branch joint)

Indoor unit

Branch header

Indoor unit

7. Apply insulation material to all refrigerant pipings.

8. The piping after the header branching can not be branched again.

Farthest piping length after 1st branching R= 30m or less

Farthest piping length L = 100m or less

Be sure to connect it to the indoor unit.

Branch joint

H is 50 m or less (When outdoor unit is installed above)

H’ is 40 m or less (When outdoor unit is installed below)

Indoor unit

difference h = 15m or less

Indoor - outdoor units height

Fig. 1 Note : Branch piping can not be applied after header branching.

Note: When the number of connecting pipes is less

than the number of header branches, insert a plug of the appropriate size into each branch that does not have piping connected to it.

Limitation on indoor unit connection

Outdoor unit

Indoor unit

ODøH

Model 200

ODøH

Example 1

Total indoor unit capacity 25 × 3 + 32 × 2 + 50 + 63 = 252

Fig. 2

Outdoor unit

Indoor unit

Model 250

Example 2

Total capacity of indoor units 25 × 2 + 32 + 40 + 50 + 63 + 80 = 315

3 Selection of refrigerant piping size and use of header

1. Prepare the pipe to be connected in the field.

2. Determine the piping sizes of each part from Table-5, 6 and 7.

3. The header can be connected to all piping sizes selected in the item

2. To match a specified piping size. (1) use the joint as it is. (2) use it by connecting the auxiliary pipe. Please conduct actual work by referring Fig 3 and Table-5 ~ 12.

4. Cover the branch pipe end of the header, which are not in use, with the plugs 1 ~ 5 provided.

Table-5 Piping size between outdoor unit and 1st branching (Fig.1-A)

Outdoor unit model Liquid pipe Gas pipe

Model 200 Model 250 Model 300 Model 350 Model 400 Model 450 Model 500 Model 550 Model 600 Model 650 Model 700 Model 750 Model 800

Model 800 over

*1 ø12.7 for over 90m *2 ø12.7 for over 40m

ø9.52 ø9.52 *1 ø9.52 *2

ø12.7

ø15.88 ø15.88 ø15.88 ø15.88 ø15.88 ø19.05 ø19.05 ø19.05 ø19.05

Table-6 Piping size between branching (Fig.1-B·C·D)

Total capacity of indoor units

~140 141~200 201~300 301~400 401~650 651~800

801~

Note: If Indoor unit capacity is 651 or more, it can’t connect to

Fig.1-B directly. Then use the 2-branch joints. (Fig.1-C·D)

Liquid pipe Gas pipe

ø9.52 ø9.52 ø9.52

ø12.7 ø15.88 ø19.05 ø19.05

ø15.88 ø19.05

ø22.2 ø28.58 ø28.58 ø34.93 ø41.28

Table-7 Piping size branching (Fig.1-a~g)

Indoor unit model Liquid pipe Gas pipe

20, 25, 32, 40, 50

63, 71, 80, 100, 125, 140

Note: If indoor unit model is 200 and 250, it can’t use the CMY-

200 250

Y104, Y108 and Y1010-G. Then use the 2-branch joints.

ø6.35 ø9.52 ø9.52 ø9.52

ø12.7 ø15.88 ø19.05

ø22.2

ø19.05

ø22.2

ø22.2 ø28.58 ø28.58 ø28.58 ø28.58 ø28.58 ø28.58 ø28.58 ø34.93 ø34.93 ø34.93 ø41.28

Table-9 Between branching (Fig.1-B)

Pipe types

CMY-Y104-G

CMY-Y108-G

CMY-Y1010-G

Down stream

Liquid pipe Gas pipe Liquid pipe Gas pipe Liquid pipe Gas pipe Liquid pipe Gas pipe Liquid pipe Gas pipe Liquid pipe Gas pipe

Table-10 4-branch header (CMY-Y104-G) (Fig.1-a~d)

Section

Liquid pipe

Gas pipe

Liquid pipe

Gas pipe

Liquid pipe

Gas pipe

Liquid pipe

Gas pipe

Between branchings

capacity

Indoor unit

Outdoor unit

Joint

2-branch joints are

sold separately.

Connecting

Pipe Size (X)

ø12.7

ø19.05

ø12.7

ø 25.4

ø15.88

ø25.4

Connecting

Pipe Size

ø9.52

ø15.88

ø6.35

ø12.7

ø9.52

ø15.88

ø9.52

ø15.88

Model

140

Connect with

pipe 1

Connect with

pipe 2

Connect with

pipe 1

Connect with

pipe 2, 6

Not

connectable

Not

connectable

Model 20, 25,

32, 40, 50

Connect with

pipe 4

Connect with

pipe 5

No need pipe

Connect with

pipe 4

Connect with

pipe 5

Connect with

pipe 4

Connect with

pipe 5

Between First branching and outdoor unit

Model

141~200

Connect with

pipe 1

No need pipe

Connect with

pipe 1

Connect with

pipe 6

Connect with

pipe 1, 5

Connect with

pipe 6

Model 71, 80, 100, 125, 400

No need pipe

Not

connectable

Not

connectable

No need pipe

Model

201~300

Not

connectable

Not

connectable

Connect with

pipe 1

Connect with

pipe 7

Connect with

pipe 1, 5

Connect with

pipe 7

Model

200 Not

connectable

Not

connectable

Not

connectable

Not

connectable

Not

connectable

Not

connectable

Not

connectable

Not

connectable

Model

301~400

Not

connectable

Not

connectable

No need pipe

Connect with

pipe 5

Connect with

pipe 8

Model

250 Not

connectable

Not

connectable

Not

connectable

Not

connectable

Not

connectable

Not

connectable

Not

connectable

Not

connectable

Table-8 Between First branching and outdoor unit (Fig.1-A)

Pipe types

CMY-Y104-G

CMY-Y108-G

CMY-Y1010-G

Note: Pipes on 450-type unit and up cannot be branched using a header (4~10-branch header); use an optional 2-branch

Outdoor unit

Liquid pipe Gas pipe Liquid pipe Gas pipe Liquid pipe Gas pipe

joint.

Header

Connecting

Pipe Size (X)

ø12.7

ø19.05

ø12.7

ø 25.4

ø15.88

ø25.4

Model 200

Connect with pipe 1

No need pipe Connect with pipe 1 Connect with pipe 6

Connect with pipe 1, 5

Connect with pipe 6

Model 250, 300

Not connectable

Not connectable Connect with pipe 1 Connect with pipe 7

Connect with pipe 1, 5

Connect with pipe 7

Model 350

Not connectable Not connectable

No need pipe Connect with pipe 8 Connect with pipe 5 Connect with pipe 8

Table-11 8-branch header (CMY-Y108-G) (Fig.1-a~d)

Fig. 3

Model

401~650

Not

connectable

Not

connectable

Not

connectable

Not

connectable

No need pipe

Connect with

pipe 8

Model

651~800

Not

connectable

Not

connectable

Not

connectable

Not

connectable

Not

connectable

Not

connectable

Model

801 or more

Not

connectable

Not

connectable

Not

connectable

Not

connectable

Not

connectable

Not

connectable

Section

Indoor unit

Liquid pipe

Gas pipe Liquid pipe

Gas pipe

Connecting

Pipe Size

ø9.52

ø19.05

ø9.52

ø15.88

ø9.52

ø15.88

ø9.52

ø15.88

ø9.52

ø15.88

ø6.35 ø12.7 ø9.52

ø15.88

ø6.35 ø12.7

Table-12 10-branch header (CMY-Y1010-G) (Fig.1-a~d)

Section

Indoor unit

Liquid pipe

Gas pipe Liquid pipe

Gas pipe

Liquid pipe Gas pipe

Connecting

Pipe Size

ø9.52

ø19.05

ø6.35

ø15.88

ø9.52

ø19.05

ø6.35

ø15.88

ø9.52

ø15.88

ø6.35 ø12.7 ø9.52

ø15.88

ø6.35 ø12.7 ø9.52

ø15.88

ø6.35 ø12.7

Model 20, 25, 32,

40, 50 Connect with pipe 4 Connect with pipe 3 Connect with pipe 4 Connect with pipe 5 Connect with pipe 4 Connect with pipe 5 Connect with pipe 4 Connect with pipe 5 Connect with pipe 4 Connect with pipe 5

No need pipe

No need pipe Connect with pipe 4 Connect with pipe 5

No need pipe

Model 20, 25, 32,

40, 50 Connect with pipe 4 Connect with pipe 3

No need pipe Connect with pipe 5 Connect with pipe 4 Connect with pipe 3

No need pipe Connect with pipe 5 Connect with pipe 4 Connect with pipe 5

No need pipe

No need pipe Connect with pipe 4 Connect with pipe 5

No need pipe

No need pipe Connect with pipe 4 Connect with pipe 5

No need pipe

Model 400

Not connectable Not connectable

No need pipe Connect with pipe 8 Connect with pipe 5 Connect with pipe 8

Model 71, 80, 100,

125, 140

No need pipe

Connect with pipe 2

No need pipe No need pipe No need pipe No need pipe No need pipe No need pipe No need pipe

No need pipe Not connectable Not connectable

No need pipe

No need pipe Not connectable Not connectable

Model 71, 80, 100,

125, 140

No need pipe

Connect with pipe 2 Connect with pipe 10

No need pipe

Connect with pipe 2 Connect with pipe 10

No need pipe

Connect with pipe 10 Connect with pipe 9

No need pipe

Connect with pipe 10 Connect with pipe 9

No need pipe

Connect with pipe 10 Connect with pipe 9

Model 450, 500,

550, 600, 650 Not connectable Not connectable Not connectable Not connectable

No need pipe

Connect with pipe 8

Model

200 No need pipe No need pipe No need pipe

Connect with pipe 11

No need pipe

Connect with pipe 11

Not connectable Not connectable Not connectable Not connectable Not connectable Not connectable Not connectable Not connectable Not connectable Not connectable

Model

200 No need pipe No need pipe

Connect with pipe 10 Connect with pipe 11

No need pipe No need pipe

Not connectable Not connectable Not connectable Not connectable Not connectable Not connectable Not connectable Not connectable Not connectable Not connectable Not connectable Not connectable Not connectable Not connectable

Model

700, 750, 800 Not connectable Not connectable Not connectable Not connectable Not connectable Not connectable

Model

250

No need pipe

Connect with pipe 12

Model

250

No need pipe

Connect with pipe 12

4 Mounting of cover (insulation material)

(i) CMY-Y104-G

Field pipings

4 Pipe cover 1

(1) Insert the 23 headers into the pipe cover 1 (2

pcs.) respectively, peel off the paper pasted on the inner surface of the 4 pipe cover, and catch the 23 headers with the 4 pipe cover 1.

23 Headers

Peel off

Plug (stopping)

(ii)CMY-Y108-G

CMY-Y1010-G

Field pipings

(1) Wind sealing material onto A-section of 23 headers, [thin

Note) For a part where sealing material is overlapped, wind sealing

Sealing material

23 Headers

Peel off

4 Pipe cover

Contact here

Sealing material

Cross section A/A

piping-small sealing material, thick piping-large sealing material], insert each header into 4 pipe cover 1, and put 23 headers between 4 pipe cover 1.

material onto the header so that the overlapped part locates at the upper side when the 10 branch header is installed.

Upper side

4 Pipe cover 1

6 Band

(2) Fasten both ends of the indoor side

branching of the 4 pipe cover 1 with the 6 band as shown in the figure above. Cut off the surplus of the band.

In case of the 10 branch header

4 Pipe cover 1

Tape

(field supply)

Tape (field supply)

4 Pipe cover 1

5 Pipe cover 2

(3) Mount the 5 pipe cover 2 onto the positions stopped with the

plugs 1 ~ 5 provided. Fully seal the butting section of the pipe cover with a tape (field supply). (Insufficient sealing causes condensation dripping.)

WT04325X01