Mitsubishi Heavy Industries FDURA301 User Manual

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In the illustration the L is main piping and ra,rb,rc, andrd are branch piping.
Request
(1) When the capacity of the indoor unit to be connected is 151, 201 and 251 or less, be sure to use a pipe diameter
of ø9.52 for the size of the liquid piping of branch piping (between branch and indoor units). (for double-twin
only) For connections to indoor units (liquid piping side dia. ø6.35) use the different diameter adapter coupling
that is included in the branch piping kit.
(2) Check to make sure the following pipe length limits are followed.
Refer to the above illustration.
(3) For the branch be sure to select the specified branch pipe set (sold separately) and then to follow the directions of
the instruction manual included in the branch pipe set when installing the piping. Be sure to install the branch
piping so that the branch is level.
Twin type
Indoor unitOutdoor unit
A
h
L
ra
rb
B
Triple type
Indoor unitOutdoor unit
A
L
ra
rb
rc
B
C
Indoor unit
A
L
ra
rArA
rb
rc
rd
rB
rC
rD
r2
r1
B
C
D
Outdoor unit
Double-twin type
FDCA301HEN, 301HES, 401HEN, 401HES, 501HES, 601HES
One-way pipe length (m) L +ra +rb 50
Branch pipe length (m) Ira –rbI 10, ra 20, rb 20
Difference in height between indoor units (m) h=0.5 or less
FDCA801HES, 1001HES
One-way pipe length (m) L +ra 70, L +rb 70
Branch pipe length (m) Ira –rbI 10, ra 30, rb 30
Difference in height between indoor units (m) h=0.5 or less
FDCA601HES
One-way pipe length (m) L +ra +rb +rc 50
Branch pipe length (m) Ira –rbI 10, Ira – rc I 10, Irb – rc I 10
ra 20, rb 20, rc 20
Difference in height between indoor units (m) h1=0.5 or less, h2=0.5 or less, h3=0.5 or less
FDCA801HES, 1001HES
One-way pipe length (m) L +ra 70, L +rb 70, L +rc 70
Branch pipe length (m) Ira –rbI 10, Ira – rc I 10, Irb – rc I 10
ra 30, rb 30, rc 30
Difference in height between indoor units (m) h1=0.5 or less, h2=0.5 or less, h3=0.5 or less
FDCA601HES
One-way pipe length (m) L +ra +rb+rc +rd 50
Branch pipe length (m) Ira –rbI 10, Ira – rc I 10, Irb – rc I 10
Ira –rdI 10, Irb – rd I 10, Ir c – rd I 10
ra 20, rb 20, rc 20, rd 20
rA +rB 15, rC +rD 15
Difference in height between indoor units (m)
Height and length restrictions for refrigerant piping
h1
h3
h2
h1=0.5 or less, h2=0.5 or less
h3=0.5 or less, h4=0.5 or less
h5=0.5 or less, h6=0.5 or less
FDCA801HES, 1001HES
One-way pipe length (m) L +ra 70, L +rb 70, L +rc 70, L +rd 70
Branch pipe length (m) Ira –rbI 10, Ira – rc I 10, Irb – rc I 10
Ira –rdI 10, Irb – rd I 10, Ir c – rd I 10
ra 30, rb 30, rc 30, rd 30
rA +rB 15, rC +rD 15
Difference in height between indoor units (m)
h1=0.5 or less, h2=0.5 or less
h3=0.5 or less, h4=0.5 or less
h5=0.5 or less, h6=0.5 or less
h1h3
h4
h6
h5
h2

Mitsubishi Heavy Industries FDURA301 Specifications

General

Brand	Mitsubishi Heavy Industries
Model	FDURA301
Category	Air Conditioner
Language	English