Specifications

-
218
-
(iv) Double twin type
Models FDCVA802, 1002 [Branch pipe set : DIS-WA1 × 2set, DIS-WB1 × 1set]
Outdoor unit
Indoor unit
DIS-WA1
DIS-WA1
DIS-WB1
Gas line
Liquid line















Chart of shapes of branch piping parts (DIS-WB1)
Gas pipe Liquid pipe Reducer Mark Mark Mark
39
190
10
19
ID25.4
ID15.88
ID15.88
ID9.52
ID9.52
ID9.52
OD12.7 ID9.51
11
80
184
8
80
10

Chart of shapes of branch piping parts (DIS-WA1)
Gas pipe Liquid pipe Reducer Mark Mark Mark
24
210
8
105
50
8
11
ID15.88
ID15.88
ID15.88
ID9.52
ID9.52
ID9.52
ID9.52
OD15.88 ID12.7
2 piece
2 piece
φ6.35
flared nut
11
48
180
8
80
10



Item
Liquid pipe
Main pipe 1st branch pipe 2nd branch pipe
φ
9.52 × t 0.8
φ
12.7 × t 0.8
φ
12.7 × t 0.8
φ
15.88 × t 1.0
φ
9.52 × t 0.8
Main pipe 1st branch pipe 2nd branch pipe
φ
15.88 × t 1.0
φ
25.4 × t 1.0
φ
9.52 × t 0.8
Gas pipe
Model
FDCVA802
FDCVA1002
Notes (1)  to  in the drawing include parts provided in the branch piping set. It shows the codes for the shapes of different-diameter connections.
(2) Branch piping should always be arranged to have level or perpendicular branch. (Refer to the 216 page for details.)
(3) Mark  shows for the FDCVA802 model only.
Notes (1) Use the irregular fittings  supplied with the branch piping set on the indoor unit side, and make the branch piping
(branch ~ indoor unit) liquid piping size
φ
9.52.
(2) Mark is  to FDCVA802 only.
Indoor unit
combinations
20 + 20 + 20 + 20
25 + 25 + 25 + 25
(b) How to use pipe reducer (Attached to FDCVA802, 1002 only)
Notes (1) For model FDCVA802, always use φ12.7 mm liquid pipes, when the length of the main “L” exceeds 40 m. If φ9.52 mm pipes are used in an installation
having over 40 m piping, they can cause performance degradation and/or water leaks from an indoor unit.
When the pipes length measures 60 m or longer for the model FDCVA802, we recommend the use of a φ12.7 mm liquid main.
(2) One-way pipe length should measure 5 m at a minimum. If the pipe length measures less than 5 m, then reduce the quantity of charged refrigerant. If you
need to recover or recharge refrigerant, contact our sales agent found in your neighborhood.
AB
This accessory pipe includes the following parts.
Install this accessory pipe according to the following.
(
*
) ID: Inner diameter.
•
φ
22.22 (OD) size of the refrigerant gas pipe can be used by using the accessory pipe B, although
φ
25.4 (OD) size of the
refrigerant gas pipe is standard.
(When
φ
25.4 (OD) size of the refrigerant gas pipe is used, the accessory pipe B is unnecssary.)
(
*
) OD: Outer diameter.
φ19.05
(Flare connection)
ID22.22
ID22.22
OD25.4
Accessory pipe A
Accessory pipe B
Branch piping parts (DIS-WB1,DIS-TB1)
In case of V-multi
Field piping φ22.22(OD)
Brazing