-
300
-
'13 • PAC-T-197
INSTRUCTIONS FOR BRANCHING PIPE SET INSTALLATION FOR TWIN/TRIPLE/ W-TWIN CONFIGURATION SYSTEMS
PSB012D865
●
This set is for R410A refrigerant.
●
Select a branching pipe set correctly rated for the combined total capacity of connected indoor units and install it according to this manual.
An improperly installed branching pipe set can cause degraded performance or an abnormal unit stop.
●
Provide good heat insulation to the pipes by following instructions contained in this manual.
Improper heat insulation can result in degraded performance or a water leak accident from condensation.
●
Please make sure that only parts supplied as accessories or the manufacturer's approved parts are used in installing the unit, because a leak of refrigerant can
result in a lack-of-oxygen accident, if it reaches a concentration beyond the tolerable limit.
This manual explains how to use a branching pipe set that is indispensable in connecting pipes for a twin/triple/double-twin configuration installation (system). For the
details of piping work, unit installation work and electrical installation work, please refer to the installation manuals and installation guides supplied with your outdoor
and indoor units.
(1) Please make sure that you have chosen the right branching pipe set and the specifications of the parts contained in it by checking with the table below.
(2) Connect pipes as illustrated in the table below. The pipe from an outdoor unit must be brazed to the pipe connection port “
①
” and the pipes from indoor units to
“
②
,” “
③
” and “
④
.”
(3) To connect pipes for a W-twin installation (involving 4 indoor units), please see 2-7. “W-twin configuration.”
(4) A branching pipe set must always be installed into the posture as illustrated in the drawing below.
In connecting an indoor unit of which capacity is 1.5HP, 2HP or 2.5HP, always use a
φ
9.52 liquid pipe to connect to the branching
pipe (branching pipe – indoor unit).
In connecting to an indoor unit (liquid pipe side:
φ
6.35), use the different diameter pipe joint A supplied with the set and follow the
procedure set out below.
WARNING / CAUTION
Braze the different diameter pipe joint found in the set matching the connected outdoor and indoor unit capacities according to the instructions set out below.
1. Branching pipe set specifications
2. Pipe connecting procedure
＜
Posture to install into
＞
Two-way branching
Three-way branching
ID stands for inner diameter and OD, outer diameter.
Floor surface
Install it to make the part
lie parallel to the floor.
Floor surface
Floor surface
Floor surface
Floor surface
Floor surface
For R410A
Branching pipe set type
DIS-WA1
(Two-way branching set)
DIS-TA1
(Three-way branching set)
Supported outdoor/indoor unit combinations
Outdoor unit model Indoor unit model
3HP
1.5HP
＋
1.5HP
4HP
1.5HP
＋
2.5HP
2HP
＋
2HP
5HP
2.5HP
＋
2.5HP
6HP
3HP
＋
3HP
2HP
＋
3HP
2HP
＋
4HP
8HP
4HP
＋
4HP
3HP
＋
5HP
10HP
5HP
＋
5HP
6HP
2HP
＋
2HP
＋
2HP
Part lists
Branching pipe set for a liquid pipe Branching pipe set for a gas pipe
Different diameter pipe joint
Heat insulation material
ID9.52
ID9.52
ID9.52
ID9.52
ID9.52
ID15.88
ID15.88
ID15.88
ID9.52
ID9.52
ID15.88
ID12.7
One each for liquid and gas
One each for liquid and gas
One each for liquid and gas
One each for liquid and gas
1 piece
1 piece
2 pieces
2 pieces
3 pieces
1 piece
1 piece
①
①
①
② ③ ④
①
②
②
③
②
③
③
④
Joint A
Joint A
Flare joint
(for indoor unit side connection)
Flare joint
(for indoor unit side connection)
DIS-TB1
(Three-way branching set)
3HP
＋
3HP
＋
3HP
8HP
ID9.52
ID9.52
ID25.4
ID15.88
1 piece
1 piece
①
② ③ ④
①
②
③
④
ID12.7
OD15.88
Joint B
ID9.52
OD12.7
1 piece
Joint C
DIS-WB1
(Two-way branching set)
ID9.52
ID12.7
ID9.52
ID15.88
ID15.88
ID25.4
1 piece
1 piece
①
①
②
②
③
③
CAUTION
Brazing
Liquid connecting pipe (
φ
9.52)
Flarenut
φ
6.35
Joint A
To indoor unit liquid pipe connection port
2-1
DIS-WA1
Supported combinations
Outdoor unit model Indoor unit model
6HP
2HP
＋
2HP
＋
2HP
Supported combinations
Outdoor unit model Indoor unit model
10HP
8HP
3HP
＋
5HP
4HP
＋
4HP
5HP
＋
5HP
Joint C
ID9.52
ID9.52
ID9.52
①
③
②
Install it to make the part
lie perpendicular to the floor.
ID9.52
2 pieces
Joint A
Flare joint (for indoor unit side connection)
ID12.7
OD15.88
1 piece
Joint B
OD9.52
ID12.7
1 piece
Joint D
Supported combinations
Outdoor unit model
Indoor unit model
3HP
＋
3HP
＋
3HP
8HP
1.5HP
＋
1.5HP
3HP
6HP
5HP
4HP
3HP
＋
3HP
2.5HP
＋
2.5HP
2HP
＋
2HP
1.5HP
＋
2.5HP
2HP
＋
3HP
2HP
＋
4HP
Connecting pipe
(
φ
9.52)
ID9.52
ID9.52
①
②
③
Flare joint
(
φ
6.35)
Joint A
CAUTION
Reference
Connecting pipe
(
φ
9.52)
ID9.52
ID9.52
①
②
③
Flare joint
(
φ
6.35)
Joint A
Joint B
ID15.88
①
②
③
ID12.7
ID15.88
CAUTION
Reference
F
2-3
DIS-TA1
Applicable to the difference in length of pipes after the branch being less than 3 m
* Connection is not allowed when the difference in length of pipes is larger than 3 m.
Applicable to the difference in length of pipes after the branch being less than 3 m
* Connection is not allowed when the difference in length of pipes is larger than 3 m.
When the difference in length of pipes after the branch is longer than 3 m and shorter than 10 m
2-5. Triple type for same model/same capacity or different model/same capacity
Outdoor unit
Indoor unit
a
b
Branching pipe
Indoor unit model
Outdoor unit model
Branching pipe set type
Liquid branching pipe
Gas branching pipe
ID9.52
①
②
③
Connecting pipe
(
φ
9.52)
Flare joint
(
φ
6.35)
Flare joint
(
φ
6.35)
Joint A
Joint A
CAUTION
Reference
Connecting pipe
(
φ
9.52)
ID9.52
ID9.52
①
②
③
Flare joint
(
φ
6.35)
Joint A
Joint B
ID15.88
①
②
③
ID12.7
ID15.88
CAUTION
Reference
Joint B
ID15.88
①
②
③
ID12.7
ID12.7
Joint B
2HP
＋
2HP
＋
2HP
a
DIS-WA1
6HP
b
3HP
＋
3HP
＋
3HP
a
DIS-WB1
8HP
b
DIS-WA1
ID9.52
ID9.52
ID9.52
①
②
③
ID25.4
①
②
③
ID15.88
ID15.88
ID15.88
①
②
ID15.88
ID15.88
③
ID9.52
Connecting pipe
(
φ
9.52)
Joint A
Joint A
Flare
joint
(
φ
6.35)
Reference
②
③
④
①
CAUTION
2-4
DIS-TB1
Liquid branching pipe
Gas branching pipe
Liquid branching pipe
Gas branching pipe
Liquid branching pipe
Gas branching pipe
2-2
DIS-WB1
ID12.7
ID9.52
ID9.52
①
②
③
ID25.4
①
②
③
ID15.88
ID15.88
ID25.4
①
②
③
ID15.88
ID15.88
③
④
ID9.52
ID9.52
①
②
ID15.88
① ② ③ ④
ID12.7
ID25.4
① ② ③ ④
ID15.88
ID9.52
①
②
③
Connecting pipe
(
φ
9.52)
Flare joint
(
φ
6.35)
Flare joint
(
φ
6.35)
Joint A
Joint A
Joint B
ID15.88
①
②
③
ID12.7
ID12.7
Joint B
Joint B
ID15.88
①
②
③
ID12.7
ID12.7
Joint B
Joint B
ID15.88
①
②
③
ID12.7
ID12.7
Joint B
Joint B
ID15.88
①
②
③
ID12.7
ID15.88
Joint B
ID15.88
①
②
③
ID12.7
ID15.88
CAUTION
Reference
Gas branching pipe
Supported combinations
Liquid branching pipe
Outdoor unit model Indoor unit model
ID9.52
ID9.52
ID9.52
①
②
③
ID15.88
①
②
ID15.88
ID15.88
③
ID15.88
①
②
ID15.88
ID15.88
③
Joint C
ID9.52
ID9.52
ID9.52
①
③
②
A
A
Note When connect the indoor unit of an old model that is shown in the model list,
use the joint supplied with the branch piping set like A
OLD Model list
model name
FDTA251R
FDENA251R
FDKNA251R
FDURA251R
FDUMA252R
1.10.5 Instructions for branching pipe set (DIS-WA1, WB1, TA1, TB1)
PSB012D865
F
Double Twin installation (involving 4 indoor units), please see 2-7. “Double Twin configuration.”
Summary of Contents for V Multi 100VNX
Page 98: ... 97 13 PAC T 197 Models FDT100VF1 125VF 140VF H H H H H C B A F G D G PJF000Z285 A ...
Page 101: ... 100 13 PAC T 197 Models FDEN60VF 71VF1 C2 C1 A B A B D C1 C2 C1 C2 E G F C PFA003Z817 ...
Page 116: ... 115 13 PAC T 197 b Wireless remote control RCN E1R 60 17 150 Unit mm ...
Page 291: ... 290 13 PAC T 197 261 12 PAC T 173 ー K ...
Page 590: ... 589 13 PAC T 197 3 8 SUPER LINK E BOARD SC ADNA E F ...
Page 591: ... 590 13 PAC T 197 ...
