• Outdoor Units • VRV HEAT RECOVERY • REYHQ16-24P
1
9
• VRV Systems • Outdoor Units
35
9
Installation
9 - 3
Refrigerant pipe selection
REYQ18-48P819
REYHQ-P
4PW48463-1
Exa
mple of
connec
tio
n
(C
o
nne
cti
on
of
8 i
n
do
or
un
it
s)
Branch
with refne
t j
oint
Br
anch w
ith
ref
net
jo
in
t and
re
fne
t heade
r
Bra
nch wi
th r
ef
net
hea
der
Out
do
or un
it
s
in
s
ta
lle
d in
a
m
u
ltip
le
out
do
or
u
n
it
system
(REYQ18~
48 +
R
REYHQ20~
24)
Use
t
h
e o
u
td
o
o
r un
it
m
u
lti co
nn
ectio
n
p
ip
ing
kit t
h
at is so
ld
se
p
a
ra
te
ly
a
s
an
op
ti
on
(B
HFQ
2
3
P
90
7+
13
57
) f
o
r
th
e mu
lt
i
in
st
a
lla
ti
on
of o
u
td
o
o
r un
it
s.
S
e
lectio
n
me
th
od
is a
s
sh
own
in
th
e r
igh
t t
a
b
le
.
Inst
all th
e jo
in
t p
a
rt
(
p
a
rt in
the
fig
ure) o
f th
e o
u
td
o
o
r un
it multi
co
n
n
e
c
ti
on
pip
in
g kit
ho
rizo
ntal
ly wit
h a
tt
e
nt
io
n t
o
t
h
e in
st
a
lla
ti
on
re
str
ic
ti
ons des
cri
be
d in
"
c
onn
ect
in
g
t
he re
fr
iger
a
n
t
p
ipi
ng
".
(*
) I
n
case
of mu
lti comb
in
atio
n, in
te
rp
re
te the word
"out
door
" as
"first
out
do
or
b
ra
n
ch
".
M
ax
imu
m
allow
able
length
B
e
tw
ee
n
out
do
or
a
n
d
i
ndo
or
u
n
it
s
Actu
al pip
e
le
ng
th
Pi
p
e
l
e
n
g
th
b
e
tw
ee
n
out
do
or
(*
) an
d i
n
doo
r un
it
s
16
5
m
[E
xam
pl
e]
un
it
8:
a+
b+
c+
d+
e+
s
16
5
m
[Exa
mp
le] u
n
it
6: a
+
b
+
l
1
6
5
m
,
uni
t 8: a+
m+
n+
p
165
m
[E
xample
] un
it 8
: a+
o
16
5
m
Equ
ivalen
t
le
ng
th
E
qui
vale
nt pi
pe le
ngth b
e
tw
een o
u
tdoor(*) and
indo
or unit
s
19
0
m
(A
ss
ume e
quiv
alen
t pip
e len
gth of
the ref
net jo
int to
be 0
.5
m
, o
f the
re
fnet h
eade
r
to be 1
.0
m
, of the
B
S
V
Q
100
and
B
S
V
Q
160
to be
4
m
an
d of t
he B
S
V
Q
25
0 to b
e
6
m
(
for cal
cula
tion
purpos
es)) (S
ee n
ote 1)
T
o
ta
l ext
e
nsi
o
n
le
ng
th
T
o
ta
l p
iping
len
gth
from o
u
td
o
o
r(
*)
to a
ll
in
do
or u
n
it
s
100
0
m
B
e
tw
ee
n
the
fi
rs
t ou
td
oo
r
un
it
m
u
lt
i con
ne
cti
o
n
p
ip
ing
ki
t an
d
out
do
or
u
n
it
(
in c
a
se
of a
m
u
lt
ip
le
o
u
td
o
o
r un
it syste
m
)
Actu
al
an
d
equ
iv
al
en
t pi
pe
le
ng
th
The
act
ual
pi
pe
l
eng
th
fr
om
th
e f
ir
s
t
out
do
or
u
n
it
m
u
lt
i
conn
ect
io
n p
ipi
ng
ki
t to
th
e o
u
td
o
o
r u
n
it
1
0
m
. (
x
10
m
, y
10
m
, z
10
m
)
The
eq
ui
va
le
nt
pi
pe
l
e
n
g
th
fr
om
th
e f
ir
s
t
ou
td
oor
u
n
it
m
u
lt
i
con
nect
io
n
pi
pi
ng
ki
t t
o
th
e o
u
td
o
o
r u
n
it
1
3
m
.
(x
13
m
, y
13
m
, z
13
m
)
A
llowabl
e he
ight
di
ff
er
ence
B
e
tw
ee
n
out
do
or
a
n
d
i
ndo
or
u
n
it
s
D
if
fer
en
ce
in
he
ig
ht
be
tw
ee
n o
u
td
o
o
r an
d
in
do
or
un
it
s (
H
1)
50
m
(
40
m if
o
u
td
o
o
r un
it is
lo
ca
ted
in a
l
o
we
r p
o
sitio
n)
.
B
e
tw
ee
n
in
do
or
an
d i
n
do
or
un
it
s
D
if
fer
en
ce
in
he
ig
ht
be
tw
ee
n a
d
ja
ce
nt
i
n
do
or
u
n
it
s
(H
2
)
15
m
B
e
tw
ee
n
out
do
or
a
n
d
ou
td
oor
u
n
it
s
D
if
fer
en
ce
in
he
ig
ht
be
tw
ee
n a
d
ja
ce
nt
ou
td
oor
u
n
it
s (
H
3
)
5m
A
llowabl
e le
ngt
h
af
te
r the bra
nch
Actu
al pip
e
le
ng
th
Pi
p
e
l
e
n
g
th
fr
om
f
ir
s
t
re
fr
iger
a
n
t b
ranch
ki
t (
e
it
h
e
r r
e
fnet
j
o
in
t or
r
e
fnet
he
ad
er
)
to i
n
do
or
un
it
40
m
(
S
ee
no
te
2)
[E
xam
pl
e]
un
it
8:
b+
c+d
+
e
+
s
4
0
m
[E
x
am
ple
] un
it
6
: b+
l
4
0
m,
un
it
8:
m+n
+p
40
m
[E
x
am
pl
e
] un
it
8
: o
40
m
Out
door unit m
ul
ti connec
tion piping k
it and re
frigera
nt
br
anch kit
se
le
ction
H
ow to
s
el
ect
th
e r
efn
et
jo
in
t
Wh
en
using
r
e
fn
et
joint
s
at
th
e fir
s
t b
ranch
cou
nt
ed
fr
om
th
e o
u
td
o
o
r un
it side
, ch
oose
fr
om
the
fo
llo
w
in
g t
a
b
le in
acco
rd
an
ce with
the
cap
a
city of
th
e o
u
tdoo
r un
it (
e
xa
mp
le:
re
fne
t join
t
A)
.
H
ow to
s
el
ect
th
e r
efne
t hea
der
C
h
oose fr
om
the
fo
llowi
ng t
able
i
n
ac
cor
dance wit
h
the tot
al
cap
ac
it
y of all
the i
ndoor
uni
ts
connect
ed
bel
ow t
he r
e
fnet
header
.
No
te
:
250
t
y
pe indo
or uni
t can not be connect
ed lo
w
e
r than th
e
re
fne
t header
header
br
anch pi
pe.
O
ut
door unit
ca
paci
ty
type (Hp)
R
efri
ger
ant branch ki
t nam
e
Indoor cap
aci
ty typ
e
Ref
ri
gerant
b
ranch
kit
n
am
e
3 pip
es
2 pi
pes
8+
10
K
HRQ23M29T
200
KHRQ23M29H KHR
Q22M29H
12~
22
K
HRQ23M64T
200
x
290
KHRQ23M29H
KHR
Q22M29H
24
K
HRQ23M75T
290
x
64
0
KHRQ23M64H
KHR
Q22M64H
For refn
et
jo
int
s oth
er th
an
th
e first b
ranch
, se
lect
the
prop
er b
ra
n
ch
kit mod
e
l b
a
sed
o
n
th
e
tot
al ca
p
a
city in
dex
of a
ll indo
or
u
n
it
s
con
nect
ed
af
ter
t
he
re
fr
iger
a
n
t b
ranch
.
640
KHRQ23M75H
KHR
Q22M75H
H
ow
to
choose
an
ou
tdoor multi c
onnec
tion
pi
ping ki
t (
this
is
require
d whe
n
th
e
sys
tem i
s a
multiple
out
door unit s
ys
te
m
)
In
door
cap
acit
y type
Ref
rig
erant
br
anch
kit
name
3 pi
pes
2 p
ipes
C
h
oose
fr
om t
he f
o
llowi
ng
table
i
n
ac
cor
dance
wit
h t
he
number
of
out
door
u
n
it
s
200
K
HRQ23M20T
KHRQ
22M20T
Number of out
door
uni
ts
Bra
nch ki
t name
200
x
290
K
HRQ23M29T9
KHRQ
22M29T
290
x
640
K
HRQ23M64T
KHRQ
22M64T
2
B
HFQ23P907
640
K
HRQ23M75T
KHRQ
22M75T
3
B
HFQ23P1357
E
x
am
pl
e
of d
o
w
n
str
eam
i
n
doo
r un
it
s
[Exa
mp
le
]
in
case
o
f r
e
fn
et
jo
in
t
C:
i
ndo
or
u
n
it
s 5+
6+
7+
8
[E
x
a
mp
le
]
in
case of re
fnet
j
o
in
t B:
i
ndoor
uni
ts
7+8,
in
case of re
fnet
he
ader:
i
ndoo
r unit
s 1+
2+3+
4+
5+6
[E
xample]
in
ca
se
of r
e
fne
t he
ad
er
: i
n
doo
r un
it
s
1
+
2
+
3+
4+
5+
6+
7+
8
AB
C
D
E
ab
c
d
e
8
H2
H1
f
ln
p
B1
B2
B3
B4
F
h
1
g
G
j
2
k
mo
q
r
s
3
i
4
5
6
7
A
B
am
H2
H1
b
B1
B2
B3
B4
n
p
d
1
fh
g
j
i
kl
o
2
3
4
5
6
7
8
ce
B5
a
H2
H1
B1
B2
B3
B4
c
1
eg
f
i
hj
l
no
2
3
4
5
6
7
8
k
bd
B2
B3
m
Ou
tdoor
un
it s
ide
(
3
pi
pes
)
Indo
or
uni
t s
ide
(2
pip
es)
Su
ction
ga
s pip
e
Gas
pipe
HP
/LP
ga
s pi
p
e
BS u
n
it
L
iqu
id
pi
p
e
Li
qu
id
p
ip
e
ind
oor
u
n
it
re
fne
t h
e
ad
er
Out
d
oor
u
n
it sid
e
(
3
pipe
s)
re
fn
et
jo
in
t
o
ut
do
or
m
u
lt
i co
nn
ecti
o
n
p
ip
ing
ki
t
Ind
oo
r
un
it
si
de
(2
pi
p
e
s)
R
e
fr
ig
e
ra
n
t
br
an
ch ki
ts
can
o
n
ly
be
u
s
ed
wi
th
R4
10
A
.
