For use with R410A-compatible units
OPTIONAL PARTS
HEADER FOR |
4 BRANCHING (CMY-Y104-G) |
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HEADER FOR |
8 BRANCHING (CMY-Y108-G) |
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INSTALLATION MANUAL |
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HEADER FOR 10 BRANCHING (CMY-Y1010-G) |
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1The 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 |
4 Pipe cover - 1 |
5 Pipe cover - 2 |
6 Band |
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For liquid line |
For gas line |
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Usable for 3/4 branching |
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(* For 2 branching, use the optional header |
This sheet 1 sheet |
1 pc. |
1pc. |
2 pcs. |
2 pcs. |
4 pcs. |
for 2 branching.) |
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Header for 8 branching (CMY-Y108-G)
1 Instruction |
2 Header |
3 Header |
4 Pipe cover - 1 |
5 Pipe cover - 2 |
6 Band |
7 Sealing material |
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Usable for 5/6/7/8 branching |
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This sheet 1 sheet |
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Each 2 pcs. |
4 pcs. |
6 pcs. |
Each 1 pc. |
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Header for 10 branching (CMY-Y1010-G) |
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1 Instruction |
2 Header |
3 Header |
4 Pipe cover - 1 |
5 Pipe cover - 2 |
6 Band |
7 Sealing material |
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For liquid line |
For gas line |
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Usable for 9/10 branching |
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This sheet 1 sheet |
pc. |
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Each 2 pcs. |
4 pcs. |
6 pcs. |
Each 1 pc. |
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IDøF IDøF
ODøG |
ODøG |
Pipe 1 – 7 |
Pipe 8 – 12 |
H
Plug 1 – 3 |
Plug 4·5 |
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.
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.
Table-1 Accesorry pipes
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Pipe Connection Specification |
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Quantity |
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F (Connecting |
G (Outer |
CMY-Y104-G CMY-Y108-G CMY-Y1010-G |
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Pipe Size) |
Diameter) |
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Pipe 1 |
ø9.52 |
ø12.7 |
1 |
1 |
1 |
Pipe 2 |
ø15.88 |
ø19.05 |
1 |
1 |
2 |
Pipe 3 |
ø12.7 |
ø19.05 |
– |
1 |
2 |
Pipe 4 |
ø6.35 |
ø9.52 |
3 |
6 |
5 |
Pipe 5 |
ø12.7 |
ø15.88 |
3 |
5 |
6 |
Pipe 6 |
ø19.05 |
ø25.4 |
– |
1 |
1 |
Pipe 7 |
ø22.2 |
ø25.4 |
– |
1 |
1 |
Pipe 8 |
ø28.58 |
ø25.4 |
– |
1 |
1 |
Pipe 9 |
ø15.88 |
ø12.7 |
– |
– |
3 |
Pipe 10 |
ø9.52 |
ø6.35 |
– |
– |
5 |
Pipe 11 |
ø19.05 |
ø15.88 |
– |
2 |
1 |
Pipe 12 |
ø22.2 |
ø19.05 |
– |
1 |
1 |
Table-2 Accesorry plugs
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Pipe Connection Specification |
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Quantity |
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H (Connecting Pipe Size) |
CMY-Y104-G CMY-Y108-G CMY-Y1010-G |
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Plug 1 |
ø6.35 |
1 |
2 |
2 |
Plug 2 |
ø9.52 |
1 |
2 |
2 |
Plug 3 |
ø12.7 |
1 |
2 |
2 |
Plug 4 |
ø15.88 |
1 |
2 |
2 |
Plug 5 |
ø19.05 |
– |
1 |
1 |
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. |
2Please observe the items below for the mounting work. |
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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 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.
7.Apply insulation material to all refrigerant pipings.
8.The piping after the header branching can not be branched again.
Be sure to connect it to the indoor unit.
Limitation on refrigerant piping length |
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Table-3 |
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Item |
Pipe section |
Allowable value |
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Total piping length |
A + B + C + D + a + |
300 m or less |
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Outdoor unit |
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b + c + d + e + f + g |
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Length |
Farthest piping length (L) |
A + C + D + g |
150 m or less |
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or A + B + d |
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Farthest piping length |
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C + D + g |
40 m or less |
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after 1st branching (R) |
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or B + d |
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Height difference between |
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50 m or less |
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Height |
indoor and outdoor units (H) |
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above) |
below) |
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difference |
Height difference |
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15 m or less |
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between indoor units (h) |
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isunitinstalled |
isunitinstalled |
1st branch |
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Indoor unit |
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Branch header |
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outdoor(Whenlessorm50 |
outdoor(Whenlessorm40 |
(Branch joint) |
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heightunitsoutdoorlessor15m=hdifference |
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Indoor unit |
Indoor unit |
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Indoor unit |
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Farthest piping length L = 100m or less |
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Farthest piping length after 1st branching R= 30m or less |
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Branch joint |
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isH |
’His |
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Indoor |
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Indoor unit |
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Indoor unit |
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Indoor unit |
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Fig. 1 Note : Branch piping can not be applied after header branching.
Limitation on indoor unit connection
Table-4
Model |
Model |
Model |
Model |
Model |
Model |
Model |
Model |
Model |
Model |
Model |
Model |
Model |
Model |
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Condition |
200 |
250 |
300 |
350 |
400 |
450 |
500 |
550 |
600 |
650 |
700 |
750 |
800 |
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Connectable |
1~13 |
1~16 |
1~16 |
1~20 |
1~22 |
1~24 |
1~24 |
1~24 |
1~32 |
1~32 |
1~34 |
1~34 |
1~34 |
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indoor unit |
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Connectable |
Model |
Model |
Model |
Model |
Model |
Model |
Model |
Model |
Model |
Model |
Model |
Model |
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indoor unit |
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20~250 |
20~250 |
20~250 |
20~250 |
20~250 |
20~250 |
20~250 |
20~250 |
20~250 |
20~250 |
20~250 |
20~250 |
20~250 |
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capacity |
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Total indoor
unit capacity 100~260 125~325 150~390 175~455 200~520 225~585 250~650 275~715 300~780 325~845 350~910 375~910 400~1040
Example 1 |
Example 2 |
Outdoor unit |
Outdoor unit |
Total indoor unit capacity
Model 200 25 × 3 + 32 × 2 + 50 + 63 = 252 Total capacity of indoor units
Model 250 25 × 2 + 32 + 40 + 50 + 63 + 80 = 315
Indoor unit
Indoor unit
Fig. 2
3Selection of refrigerant piping size and use of header
1. Prepare the pipe to be connected in the field. |
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Table-8 Between First branching and outdoor unit (Fig.1-A) |
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2. Determine the piping sizes of each part from Table-5, 6 and 7. |
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Outdoor unit |
Connecting |
Model 200 |
Model 250, 300 |
Model 350 |
Model 400 |
Model 450, 500, |
Model |
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3. The header can be connected to all piping sizes selected in the item |
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Pipe types |
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Pipe Size (X) |
550, 600, 650 |
700, 750, 800 |
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2. To match a specified piping size. |
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CMY-Y104-G |
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Liquid pipe |
ø12.7 |
Connect with pipe 1 |
Not connectable |
Not connectable |
Not connectable |
Not connectable |
Not connectable |
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(1) use the joint as it is. |
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Gas pipe |
ø19.05 |
No need pipe |
Not connectable |
Not connectable |
Not connectable |
Not connectable |
Not connectable |
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Between First branching and outdoor unit |
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CMY-Y108-G |
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Liquid pipe |
ø12.7 |
Connect with pipe 1 |
Connect with pipe 1 |
No need pipe |
No need pipe |
Not connectable |
Not connectable |
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(2) use it by connecting the auxiliary pipe. |
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Gas pipe |
ø 25.4 |
Connect with pipe 6 |
Connect with pipe 7 |
Connect with pipe 8 |
Connect with pipe 8 |
Not connectable |
Not connectable |
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Please conduct actual work by referring Fig 3 and Table-5 ~ 12. |
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CMY-Y1010-G |
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Liquid pipe |
ø15.88 Connect with pipe 1, 5 |
Connect with pipe 1, 5 |
Connect with pipe 5 |
Connect with pipe 5 |
No need pipe |
Not connectable |
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Outdoor unit |
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Gas pipe |
ø25.4 |
Connect with pipe 6 |
Connect with pipe 7 |
Connect with pipe 8 |
Connect with pipe 8 |
Connect with pipe 8 |
Not connectable |
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4. Cover the branch pipe end of the header, which are not in use, with the |
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Note: Pipes on 450-type unit and up cannot be branched using a header (4~10-branch header); use an optional 2-branch |
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plugs 1 ~ 5 provided. |
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joint. |
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Header |
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Table-5 Piping size between outdoor unit and 1st branching (Fig.1-A)
Outdoor unit model |
Liquid pipe |
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Gas pipe |
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X |
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Model 200 |
ø9.52 |
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ø19.05 |
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Model 250 |
ø9.52 *1 |
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ø22.2 |
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Model 300 |
ø9.52 *2 |
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ø22.2 |
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Model 350 |
ø12.7 |
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ø28.58 |
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Model 400 |
ø12.7 |
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ø28.58 |
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4 |
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8 |
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Model 450 |
ø15.88 |
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ø28.58 |
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Joint |
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2 |
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6 |
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10 |
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Model 500 |
ø15.88 |
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ø28.58 |
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1 |
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3 |
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5 |
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7 |
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9 |
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Model 550 |
ø15.88 |
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ø28.58 |
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Model 600 |
ø15.88 |
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ø28.58 |
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2-branch joints are |
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Model 650 |
ø15.88 |
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ø28.58 |
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sold separately. |
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Model 700 |
ø19.05 |
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ø34.93 |
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Table-11 8-branch header (CMY-Y108-G) (Fig.1-a~d) |
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Model 750 |
ø19.05 |
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ø34.93 |
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Indoor unit |
Connecting |
Model 20, 25, 32, |
Model 71, 80, 100, |
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Model |
Model |
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Model 800 |
ø19.05 |
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ø34.93 |
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Section |
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Pipe Size |
40, 50 |
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125, 140 |
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200 |
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250 |
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Model 800 over |
ø19.05 |
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ø41.28 |
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1 |
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Liquid pipe |
ø9.52 |
Connect with pipe 4 |
No need pipe |
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No need pipe |
No need pipe |
||||||||||||||||
*1 ø12.7 for over 90m |
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Between branchings |
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Fig. 3 |
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Gas pipe |
ø19.05 |
Connect with pipe 3 |
Connect with pipe 2 |
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No need pipe |
Connect with pipe 12 |
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*2 ø12.7 for over 40m |
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Table-9 Between branching (Fig.1-B) |
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2 |
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Liquid pipe |
ø9.52 |
Connect with pipe 4 |
No need pipe |
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No need pipe |
Not connectable |
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Gas pipe |
ø15.88 |
Connect with pipe 5 |
No need pipe |
Connect with pipe 11 |
Not connectable |
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Down stream |
Connecting |
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Model |
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Model |
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Model |
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Model |
Model |
Model |
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Model |
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3 |
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Liquid pipe |
ø9.52 |
Connect with pipe 4 |
No need pipe |
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No need pipe |
Not connectable |
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Table-6 Piping size between branching (Fig.1-B·C·D) |
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Pipe types |
capacity |
Pipe Size (X) |
140 |
141~200 |
201~300 |
301~400 |
401~650 |
651~800 |
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801 or more |
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Gas pipe |
ø15.88 |
Connect with pipe 5 |
No need pipe |
Connect with pipe 11 |
Not connectable |
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Liquid pipe |
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Connect with |
Connect with |
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Not |
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Not |
Not |
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Not |
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Not |
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Liquid pipe |
ø9.52 |
Connect with pipe 4 |
No need pipe |
|
Not connectable |
Not connectable |
|||||||||||||||||||
Total capacity |
Liquid pipe |
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Gas pipe |
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ø12.7 |
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4 |
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Gas pipe |
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pipe 1 |
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pipe 1 |
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connectable |
connectable |
connectable |
connectable |
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connectable |
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Gas pipe |
ø15.88 |
Connect with pipe 5 |
No need pipe |
|
Not connectable |
Not connectable |
|||||||||||||||||||||||||||
of indoor units |
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CMY-Y104-G |
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Liquid pipe |
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Connect with |
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Not |
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Not |
Not |
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Not |
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Not |
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Liquid pipe |
ø9.52 |
Connect with pipe 4 |
No need pipe |
|
Not connectable |
Not connectable |
|||||||||||||||||||
~140 |
ø9.52 |
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ø15.88 |
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ø19.05 |
No need pipe |
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5 |
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Gas pipe |
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pipe 2 |
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connectable |
connectable |
connectable |
connectable |
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connectable |
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Gas pipe |
ø15.88 |
Connect with pipe 5 |
No need pipe |
|
Not connectable |
Not connectable |
||||||||||||||||||||||||||||
141~200 |
ø9.52 |
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ø19.05 |
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Liquid pipe |
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Connect with |
Connect with |
Connect with |
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Not |
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Not |
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Not |
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Liquid pipe |
ø6.35 |
No need pipe |
Not connectable |
|
Not connectable |
Not connectable |
|||||||||||||||||||||||
201~300 |
ø9.52 |
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ø22.2 |
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ø12.7 |
No need pipe |
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6 |
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|||||||||||||||||||||||||||||||||||
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Gas pipe |
|
pipe 1 |
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pipe 1 |
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pipe 1 |
connectable |
connectable |
|
connectable |
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Gas pipe |
ø12.7 |
No need pipe |
Not connectable |
|
Not connectable |
Not connectable |
|||||||||||||||||||||||||||
301~400 |
ø12.7 |
|
ø28.58 |
|
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|
|
CMY-Y108-G |
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||||||||||||||||||||||||||||||||||||
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Liquid pipe |
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Connect with |
Connect with |
Connect with |
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Not |
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Not |
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Not |
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Liquid pipe |
ø9.52 |
Connect with pipe 4 |
No need pipe |
|
Not connectable |
Not connectable |
|||||||||||||||||||||||||
401~650 |
ø15.88 |
|
ø28.58 |
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ø 25.4 |
No need pipe |
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7 |
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|||||||||||||||||||||||||||||||||||
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Gas pipe |
|
pipe 2, 6 |
|
pipe 6 |
|
pipe 7 |
connectable |
connectable |
|
connectable |
|
|
|
Gas pipe |
ø15.88 |
Connect with pipe 5 |
No need pipe |
|
Not connectable |
Not connectable |
|||||||||||||||||||||||||||
651~800 |
ø19.05 |
|
ø34.93 |
|
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|||||||||||||||||||||||||||||||||||
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Liquid pipe |
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Not |
Connect with |
Connect with |
Connect with |
|
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Not |
|
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Not |
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|
|
Liquid pipe |
ø6.35 |
No need pipe |
Not connectable |
|
Not connectable |
Not connectable |
|||||||||||||||||||||
801~ |
ø19.05 |
|
ø41.28 |
|
|
|
|
|
|
|
ø15.88 |
|
No need pipe |
|
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8 |
|
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||||||||||||||||||||||||||||||||||
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|
CMY-Y1010-G |
Gas pipe |
connectable |
pipe 1, 5 |
|
pipe 1, 5 |
|
pipe 5 |
connectable |
|
connectable |
|
|
|
Gas pipe |
ø12.7 |
No need pipe |
Not connectable |
|
Not connectable |
Not connectable |
|||||||||||||||||||||||||||||
Note: If Indoor unit capacity is 651 or more, it can’t connect to |
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|
Liquid pipe |
ø25.4 |
|
Not |
Connect with |
Connect with |
Connect with |
Connect with |
|
Not |
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Not |
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||||||||||||||||||
Fig.1-B directly. Then use the 2-branch joints. (Fig.1-C·D) |
|
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|
|
Gas pipe |
connectable |
|
pipe 6 |
|
pipe 7 |
|
pipe 8 |
pipe 8 |
connectable |
|
connectable |
|
Table-12 10-branch header (CMY-Y1010-G) (Fig.1-a~d) |
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Table-7 Piping size branching (Fig.1-a~g)
Indoor unit model |
Liquid pipe |
Gas pipe |
|
|
|
20, 25, 32, 40, 50 |
ø6.35 |
ø12.7 |
63, 71, 80, 100, 125, 140 |
ø9.52 |
ø15.88 |
200 |
ø9.52 |
ø19.05 |
250 |
ø9.52 |
ø22.2 |
Note: If indoor unit model is 200 and 250, it can’t use the CMYY104, Y108 and Y1010-G.
Then use the 2-branch joints.
Table-10 4-branch header (CMY-Y104-G) (Fig.1-a~d)
|
Indoor unit |
Connecting |
Model 20, 25, Model 71, 80, |
Model |
Model |
||
Section |
Pipe Size |
32, 40, 50 100, 125, 400 |
200 |
250 |
|||
|
Liquid pipe |
ø9.52 |
Connect with |
No need pipe |
Not |
Not |
|
|
pipe 4 |
connectable |
connectable |
||||
1 |
|
||||||
Gas pipe |
ø15.88 |
Connect with |
No need pipe |
Not |
Not |
||
|
|||||||
|
pipe 5 |
connectable |
connectable |
||||
|
|
||||||
|
Liquid pipe |
ø6.35 |
No need pipe |
Not |
Not |
Not |
|
|
connectable |
connectable |
connectable |
||||
2 |
|
||||||
Gas pipe |
ø12.7 |
No need pipe |
Not |
Not |
Not |
||
|
|||||||
|
connectable |
connectable |
connectable |
||||
|
|
||||||
|
Liquid pipe |
ø9.52 |
Connect with |
No need pipe |
Not |
Not |
|
|
pipe 4 |
connectable |
connectable |
||||
3 |
|
||||||
Gas pipe |
ø15.88 |
Connect with |
No need pipe |
Not |
Not |
||
|
|||||||
|
pipe 5 |
connectable |
connectable |
||||
|
|
||||||
|
Liquid pipe |
ø9.52 |
Connect with |
No need pipe |
Not |
Not |
|
|
pipe 4 |
connectable |
connectable |
||||
4 |
|
||||||
Gas pipe |
ø15.88 |
Connect with |
No need pipe |
Not |
Not |
||
|
|||||||
|
pipe 5 |
connectable |
connectable |
||||
|
|
||||||
|
Indoor unit |
Connecting |
Model 20, 25, 32, |
Model 71, 80, 100, |
Model |
Model |
|
Section |
|
Pipe Size |
40, 50 |
125, 140 |
200 |
250 |
|
1 |
Liquid pipe |
ø9.52 |
Connect with pipe 4 |
No need pipe |
No need pipe |
No need pipe |
|
Gas pipe |
ø19.05 |
Connect with pipe 3 |
Connect with pipe 2 |
No need pipe |
Connect with pipe 12 |
||
|
|||||||
2 |
Liquid pipe |
ø6.35 |
No need pipe |
Connect with pipe 10 |
Connect with pipe 10 |
Not connectable |
|
Gas pipe |
ø15.88 |
Connect with pipe 5 |
No need pipe |
Connect with pipe 11 |
Not connectable |
||
|
|||||||
3 |
Liquid pipe |
ø9.52 |
Connect with pipe 4 |
No need pipe |
No need pipe |
Not connectable |
|
Gas pipe |
ø19.05 |
Connect with pipe 3 |
Connect with pipe 2 |
No need pipe |
Not connectable |
||
|
|||||||
4 |
Liquid pipe |
ø6.35 |
No need pipe |
Connect with pipe 10 |
Not connectable |
Not connectable |
|
Gas pipe |
ø15.88 |
Connect with pipe 5 |
No need pipe |
Not connectable |
Not connectable |
||
|
|||||||
5 |
Liquid pipe |
ø9.52 |
Connect with pipe 4 |
No need pipe |
Not connectable |
Not connectable |
|
Gas pipe |
ø15.88 |
Connect with pipe 5 |
No need pipe |
Not connectable |
Not connectable |
||
|
|||||||
6 |
Liquid pipe |
ø6.35 |
No need pipe |
Connect with pipe 10 |
Not connectable |
Not connectable |
|
Gas pipe |
ø12.7 |
No need pipe |
Connect with pipe 9 |
Not connectable |
Not connectable |
||
|
|||||||
7 |
Liquid pipe |
ø9.52 |
Connect with pipe 4 |
No need pipe |
Not connectable |
Not connectable |
|
Gas pipe |
ø15.88 |
Connect with pipe 5 |
No need pipe |
Not connectable |
Not connectable |
||
|
|||||||
8 |
Liquid pipe |
ø6.35 |
No need pipe |
Connect with pipe 10 |
Not connectable |
Not connectable |
|
Gas pipe |
ø12.7 |
No need pipe |
Connect with pipe 9 |
Not connectable |
Not connectable |
||
|
|||||||
9 |
Liquid pipe |
ø9.52 |
Connect with pipe 4 |
No need pipe |
Not connectable |
Not connectable |
|
Gas pipe |
ø15.88 |
Connect with pipe 5 |
No need pipe |
Not connectable |
Not connectable |
||
|
|||||||
10 |
Liquid pipe |
ø6.35 |
No need pipe |
Connect with pipe 10 |
Not connectable |
Not connectable |
|
Gas pipe |
ø12.7 |
No need pipe |
Connect with pipe 9 |
Not connectable |
Not connectable |
||
|
4Mounting of cover (insulation material)
(i) CMY-Y104-G |
(ii)CMY-Y108-G |
Sealing material |
|
|
|
|
|
23 Headers |
|
|
|
|
Field pipings |
|
|
|
Tape (field supply) |
|
23 Headers |
|
|
4 Pipe cover 1 |
|
|
|
|
|
|
|
Field pipings |
Plug (stopping) |
|
|
|
4 Pipe cover 1 |
|
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|
|
||
|
|
|
Upper side |
|
4 Pipe cover 1 |
|
|
|
|
|
6 Band |
|
|
4 Pipe cover |
Sealing material |
6 Band |
5 Pipe cover 2 |
|
|
Peel off |
|
|
|
4 Pipe cover 1 |
|
Contact here |
Cross section A/A |
|
Tape |
|
|
|
|||
Peel off |
|
|
|
(field supply) |
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(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.
(1)Wind sealing material onto A-section of 23 headers, [thin 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.
Note) For a part where sealing material is overlapped, wind sealing material onto the header so that the overlapped part locates at the upper side when the 10 branch header is installed.
(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.
(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
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