EDUS391004-N
Installation
Installation of Outdoor Units
99
6-5 Example of connection
Example of connection
(Connection of
8
indoor
u
nits)
O
u
tdoor
u
nit
side
(3 pipes)
Indoor
u
nit
side
(2 pipes)
S
u
ction gas pipe
HP/LP gas pipe
Li
qu
id pipe
Gas pipe
Li
qu
id pipe
Branch
Selector
Unit
S
u
ction gas pipe
HP/LP gas pipe
Li
qu
id pipe
(S
u
ction) gas pipe
Li
qu
id pipe
Piping from o
u
tdoor
u
nit to
Branch Selector
Unit
Piping from
Branch Selector Unit
to
indoor
u
nit or Piping from Refrigerant
b
ranch kit to indoor
u
nit
u
sed as cooling
only
(Bold) : 3 pipes
(Thin) : 2 pipes
(*1) “ ” Indicate the O
u
tdoor
u
nit m
u
lti
connection piping kit.
(*2) In case of m
u
lti o
u
tdoor system, re-read
“o
u
tdoor
u
nit” to “the first O
u
tdoor
u
nit
m
u
lti connection piping kit” as seen from
the indoor
u
nit.
Branch with REFNET joint
Branch with REFNET joint and header
Branch with REFNET header
Multi
outdoor
system
REYQ
144
~
336
PBYD
REYQ
16
8
~
336
PBTJ
O
u
tdoor
u
nit
O
u
tdoor
u
nit
REF
N
ET joint (A
~
G)
First o
u
tdoor
u
nit m
u
lti connection piping kit
REF
N
ET joint (A
~
G)
REF
N
ET header
REF
N
ET header
Maximum
allowable
len
g
th
Allowable
hei
g
ht
difference
Allowable len
g
th after the branch
Bet
w
een o
u
tdoor
u
nit (*2)
and indoor
u
nit
Bet
w
een first o
u
tdoor
u
nit m
u
lti
connection piping kit and
o
u
tdoor
u
nit
Bet
w
een o
u
tdoor and indoor
u
nits
Bet
w
een indoor and indoor
u
nits
Bet
w
een o
u
tdoor and o
u
tdoor
u
nits
Act
u
al pipe
length
E
qu
i
v
alent
length
Act
u
al and
E
qu
i
v
alent
pipe length
Act
u
al pipe
length
Difference in height
Difference in height
Difference in height
Total extension length
Pipe length
b
et
w
een o
u
tdoor
u
nit (*2) and indoor
u
nit
≤
540 ft
Example
8
: a +
b
+ c + d + e
≤
540 ft
Example 6 : a +
b
+
≤
540 ft,
8
: a + m + n + p
≤
540 ft
Example
8
: a + o
≤
540 ft
E
qu
i
v
alent pipe length
b
et
w
een o
u
tdoor
u
nit (*2) and indoor
u
nit
≤
620 ft (
N
ote 1)
(Ass
u
me e
quv
alent pipe length of REF
N
ET joint to
b
e 1.6 ft, that of REF
N
ET header to
b
e 3.3 ft, that of BS
V
Q36 · 60 · 96 to
b
e 13 ft, for calc
u
lation p
u
rposes)
Total piping length from o
u
tdoor
u
nit (*2) to all indoor
u
nit
£
32
8
0 ft
Act
u
al pipe length from first o
u
tdoor
u
nit m
u
lti connection piping kit to o
u
tdoor
u
nit
≤
33 ft
E
qu
i
v
alent pipe length from first o
u
tdoor
u
nit m
u
lti connection piping kit to o
u
tdoor
u
nit
≤
43 ft
Act
u
al pipe length from first refrigerant
b
ranch kit (either REF
N
ET joint or REF
N
ET header) to indoor
u
nit
≤
130 ft (
N
ote 2)
Example
8
:
b
+ c + d + e + s
≤
130 ft
Difference in height
b
et
w
een o
u
tdoor
u
nit and indoor
u
nit (H1)
≤
164 ft (*3)(Max 295 ft if the o
u
tside
u
nit is
b
elo
w
(*4)
Difference in height
b
et
w
een adjacent indoor
u
nits (H2)
≤
49 ft
Difference in height
b
et
w
een adjacent o
u
tdoor
u
nits (H3)
≤
16 ft
O
u
tdoor
u
nit
Example 6 :
b
+
≤
130 ft,
8
: m + n + p
≤
130 ft
Example
8
: o
≤
130 ft
a
b
c
d
e
H1
f
k
i
p
n
q
o
m
H1
S
r
AB
C
D
E
H2
g
G
F
12
34
567
8
B1
~
B6
:
Branch Selector Unit
1
~
6
:
Indoor
u
nit (Cool/Heat selection possi
b
le)
7 ,
8
: Indoor
u
nit (Cooling only)
B1
~
B5
:
Branch Selector Unit
1
~
4 , 7 ,
8
:
Indoor
u
nit (Cool/Heat selection possi
b
le)
5 , 6
: Indoor
u
nit (Cooling only)
B1
~
B4
:
Branch Selector Unit
1
~
6
: Indoor
u
nit (Cool/Heat selection possi
b
le)
7 ,
8
: Indoor
u
nit (Cooling only)
m
A
H3
r
t
r
a
b
c
d
e
f
h
k
o
B
8
H2
r
a
B1
B2
B3
B4
12
3
4
5
6
7
B5
p
n
d
b
h
j
f
H1
B1
B2
B3
B4
B5
B6
12
3
4
5
6
7
8
c
e
m
g
i
k
o
n
H2
r
s
t
g
i
j
O
u
tdoor
u
nit
H3
t
H3
t
(*3) This can
b
e extended to 295 ft
w
ith a replacement o
u
tdoor
u
nit PCB.
(*4) If the difference
b
et
w
een the o
u
tdoor
u
nit and indoor
u
nit is greater than 164 ft, the li
qu
id line m
u
st
b
e increased
b
y one size.
(*1) Indicates the O
u
tside
u
nit m
u
lti-connection piping kit.
(*2) In case of m
u
lti o
u
tdoor system, re-read “o
u
tside
u
nit” to “the first O
u
tside
u
nit m
u
lti connection piping kit” as seen from the indoor
u
nit.
r
≤
33 ft
(E
qu
i
v
alent length 43 ft)
s
≤
33 ft
(E
qu
i
v
alent length 43 ft)
t
≤
33 ft
(E
qu
i
v
alent length 43 ft)
3P215731-11R
Summary of Contents for VRV III REMQ72PBYD
Page 1: ...EDUS 391004 N AMERICAS AMERICAS Installation...
Page 24: ...EDUS391004 N REFNET Pipe System Installation of Outdoor Units 23 1P218719...
Page 25: ...REFNET Pipe System EDUS391004 N 24 Installation of Outdoor Units 1P218720...
Page 26: ...EDUS391004 N REFNET Pipe System Installation of Outdoor Units 25 1P218720...
Page 28: ...EDUS391004 N REFNET Pipe System Installation of Outdoor Units 27 1P280278A...
Page 29: ...REFNET Pipe System EDUS391004 N 28 Installation of Outdoor Units 1P280278A...
Page 30: ...EDUS391004 N REFNET Pipe System Installation of Outdoor Units 29 1P280279...
Page 33: ...REFNET Pipe System EDUS391004 N 32 Installation of Outdoor Units 1P218714...
Page 34: ...EDUS391004 N REFNET Pipe System Installation of Outdoor Units 33 1P218714...
Page 35: ...REFNET Pipe System EDUS391004 N 34 Installation of Outdoor Units 1P218715...
Page 36: ...EDUS391004 N REFNET Pipe System Installation of Outdoor Units 35 1P218715...
Page 38: ...EDUS391004 N REFNET Pipe System Installation of Outdoor Units 37 3D071080...
Page 39: ...REFNET Pipe System EDUS391004 N 38 Installation of Outdoor Units 1P280510A...
Page 40: ...EDUS391004 N REFNET Pipe System Installation of Outdoor Units 39 1P280510A...
Page 41: ...REFNET Pipe System EDUS391004 N 40 Installation of Outdoor Units 1P280511A...
Page 42: ...EDUS391004 N REFNET Pipe System Installation of Outdoor Units 41 1P280511A...
Page 113: ...EDUS391004 N Field Setting Installation of Outdoor Units 113 2P281604A...
Page 114: ...Field Setting EDUS391004 N 114 Installation of Outdoor Units 2P281604A...
Page 115: ...EDUS391004 N Field Setting Installation of Outdoor Units 115 2P281604A...
Page 116: ...Field Setting EDUS391004 N 116 Installation of Outdoor Units 2P281604A...
Page 121: ...EDUS391004 N Field Setting Installation of Outdoor Units 121 2P281605A...
Page 122: ...Field Setting EDUS391004 N 122 Installation of Outdoor Units 2P281605A...
Page 124: ...Field Setting EDUS391004 N 124 Installation of Outdoor Units 2P281605A...
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