Daikin VRV-WIII, Installation Manual

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11 English
9-5 Example of connection
∗
Below table is mentioned about the case of heat recovery sytem (3-piping: suction gas, HP/LP gas and liquid pipes).
In case of heat pump system (2-piping: gas and liquid pipes), select the pipe size from suction gas pipe for gas pipes and from liquid gas pipe for liquid pipes.
And BS unit is not required.
Example of connection
(Connection of 8 indoor units Heat pump system)
Single outside unit system
a
b
k
i
j
c
de
s
c
am
b
r
q
o
m
n
p
Outside unit
Outside unit
Outside unit
Outside unit
REFNET joint (A-G)
REFNET joint (A-G)
REFNET joint (A·B)
REFNET joint (A·B)
REFNET header
REFNET header
REFNET header
REFNET header
BS units ( B1 - B4 )
Multi outside unit system
Maxim
um
allo
w
a
b
le
length
Betw
een outside
(
∗
)
and indoor units
Betw
een outside br
anch and outside unit
(In case of m
ulti system)
Betw
een outside and indoor units
Betw
een indoor and indoor units
Betw
een outside and outside units
Actual pipe length Actual pipe length Actual pipe length Diff
erence in height
Diff
erence in height
Diff
erence in height
Equiv
alent length
T
otal e
xtension length
Pipe length betw
een outside (
∗
) and indoor units
≤
120m
(Example 1,4) unit 8 :
a + b + c + d + e + s
≤
120m
(Example 1,4) unit 8 :
b + c + d + e + s
≤
40m
Equiv
alent pipe length betw
een outside (
∗
) and indoor units
≤
140m (Note 1) (assume equiv
alent pipe length of REFNET joint to be 0.5m, that of REFNET header to be 1m, BSVP100,160 is 4 m an
d BSVP250 is 6m.)
Piping length from outside br
anch to outside unit
≤
10m Equiv
alent length:
max 13m
Diff
erence in height betw
een outside and indoor units (H1)
≤
50m (Max 40m if the outside unit is belo
w)
Diff
erence in height betw
een indoor units (H2)
≤
15m
Diff
erence in height betw
een outside unit (main) and outside unit (sub) (H3)
≤
2m
Pipe length from first refr
iger
ant br
anch kit (either REFNET joint or REFNET header ) to indoor unit
≤
40m (Note 2)
T
otal piping length from outside unit (
∗
) to all indoor units
≤
300m
Allo
w
a
b
le
height length
Allo
w
a
b
le length after the br
anch
(Example 3,6) unit 8 :
a + o
≤
120m
(Example 2,5) unit 6 :
a + b + l
≤
120m, 8 :
a + m + n + p
≤
120m
(Example 3,6) unit 8 :
o
≤
40m
(Example 2,5) unit 6 :
b + l
≤
40m, 8 :m + n + p
≤
40m
r
≤
10m (
Equiv
alent length
≤
13m)
u+s
≤
10m (
Equiv
alent length
≤
13m)
u+t
≤
10m (
Equiv
alent length
≤
13m)
Refr
iger
ant br
anch kits can only be
used with R410A.
Ho
w to select REFNET joint:
•
When using REFNET joints at the first br
anch counted from the outside unit side
.
Choose from the f
ollo
wing tab
le in accordance with the capacity of the outside unit.
(Example 1,2,4,5 :
REFNET joint
A
)
Piping betw
een outside unit (
∗
) and refr
iger
ant br
anch kit (par
t A)
Piping betw
een outside br
anch and outside unit (par
t C)
• Match
to the siz
e of connection piping of outside unit
Piping betw
een outside br
anches (par
t B)
•
Select the siz
e from the f
ollo
wing tab
le based on the total capacity of the
outside unit to be connected to upstream
Additional ref
er
iger
ant to be charged R (kg)
(R should be rounded off in units of 0.1kg.)
R
WEYQ8, 10 type
R
WEYQ16-20 type
R
WEYQ24-30 type
KHRP25A33T
KHRP KHRP25M72TP KHRP KHRP25M73TP
KHRP26A33T KHRP26A72T
KHRP KHRP26M73TP
•
F
or REFNET joints other than the first br
anch, select the proper br
anch kit model based on the total capacity inde
x.
< 200 200
≤
x< 290
290
≤
x< 640
640
≤
KHRP25A22T KHRP25A33T KHRKHRP25M72TP KHRKHRP25M73TP
KHRP26A22T KHRP26A33T KHRP26A72T KHRKHRP26M73TP
Ho
w to select REFNET header
•
Select suitab
le one from the tab
le belo
w according to the total capacity of indoor units to be connected to the do
wnstream of R
EFNET header
.
•
Be careful that 250 type cannot be connected to the do
wnstream of REFNET header
.
< 200 200
≤
x< 290
290
≤
x< 640
640
≤
KHRP25M33H KHRKHRP25M72HP KHRKHRP25M73HP
KHRP26M72H KHRP26M33H
KHRP26M22H, KHRP26M33H
KHRKHRP26M73HP
Ho
w to select an outside br
anch kit (Needed when the outside unit type is R
W
EYQ20 or more
.)
•
Select from the tab
le belo
w according to the n
u
mber of outside units
.
2 unit 3 unit
BHFP22MA56 BHFP22MA84
BHFP26MA56 BHFP26MA84
(Example 1,4) In case of REFNET Joint
C
, indoor units of 5 + 6 + 7 + 8
(Example 2,5) In case of REFNET Joint
B
, indoor units of 7 + 8
(Example 2,5) In case of REFNET Header
, indoor units of 1 + 2 + 3 + 4 + 5 + 6
(Example 3,6) In case of REFNET Header
,
indoor units of 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8
Example of do
wnstream indoor units
φ
19.1 × 0.80
φ
22.2 × 0.80
φ
28.6 × 0.99
φ
34.9 × 1.21
φ
22.2 × 0.80
φ
28.6 × 0.99
φ
19.1 × 0.80
φ
15.9 × 0.99
φ
19.1 × 0.80
φ
9.5 × 0.80
φ
12.7 × 0.80
φ
15.9 × 0.99
R
WEYQ8
R
WEYQ10
R
WEYQ16
R
WEYQ18, 20
R
WEYQ24
R
WEYQ26-30
Piping betw
een refr
iger
ant br
anch kit and refr
iger
ant br
anch kit/BS unit
Piping betw
een BS unit and refr
iger
ant br
anching kit
•
Select one from the tab
le belo
w according to the total capacity of indoor units to be
connected to do
wnstream.
•
F
or the gas piping siz
e in case of 2-tube piping betw
een refr
iger
ant br
anching kit/BS
unit and refr
iger
ant br
anching kit, select the siz
e of suction gas piping.
•
The siz
e of connection piping should not e
xceed the refr
iger
ant piping siz
e selected
under the gener
ic ter
m of the system.
Piping betw
een BS unit (refr
iger
ant br
anch kit) and indoor unit
•
Match to the siz
e of the connection piping on the indoor unit.
a:
φ
19.1×30m
b:
φ
15.9×10m
c:
φ
0
9.5×10m
d:
φ
9.5×10m
e:
φ
9.5×10m
f:
φ
9.5×10m
g:
φ
0
6.4×10m
h:
φ
6.4×20m
i:
φ
12.7×10m
j:
φ
6.4×10m
k:
φ
6.4×10m
l:
φ
6.4×10m
m
:
φ
6.4×10m
n:
φ
6.4×10m
o:
φ
0
6.4×10m
p:
φ
6.4×10m
r:
φ
9.5× 3m
s:
φ
0
9.5× 3m
t:
φ
0
9.5× 3m
u:
φ
15.9× 1m
R=
+
Indoor capacity inde
x
Refrig
erant branc
h kit name
Number of units of outside unit
Heat reco
ver
y system
In case of 2-tube piping
Heat pump system
In case of 3-tube piping
In case of 3-tube piping
In case of 2-tube piping
Outside unit capacity type
Refrig
erant branc
h kit name
Indoor capacity inde
x
Refrig
erant branc
h kit name
Suction gas pipe
Capacity type of outside unit
Piping siz
e (outer diameter × Min.
thic
kness)
HP/LP gas pipe
Liquid pipe
+
+
+
+
+
(Heat reco
v
e
ry
system)
If the outside unit is R
WEYQ30 and the piping
lengths are as at r
ight
R= 30 0.26 + 11 0.18 + 10 0.12 + 49 0.059 + 100 0.022 + 9 = 25.071
b+u
a
c+d+e+f+r+s+t
g+h+j+k+l+m+n+o+p
i
25.1 (kg)
To
tal length (m) of liquid
piping siz
e at
φ
22.2
×0.37 (kg/m)
  
  
To
tal length (m) of liquid
piping siz
e at
φ
9.5
  
  
To
tal length (m) of liquid
piping siz
e at
φ
6.4
  
  
To
tal length (m) of liquid
piping siz
e at
φ
19.1
  
  
To
tal length (m) of liquid
piping siz
e at
φ
15.9
  
  
Total length (m) of liquid piping siz
e at
φ
12.7
  
  
×0.26 (kg/m)
×0.18 (kg/m)
×0.12 (kg/m)
×0.059 (kg/m)
×0.022 (kg/m)
System name
R
WEYQ10
R
WEYQ20
R
WEYQ30
3 kg
4.5 kg
6 kg
4 kg
6.5 kg
9 kg
Heat reco
v
e
ry
system
Heat pump system
Example f
or refr
iger
ant br
anch using REFNET joint and REFNET header f
or R
W
EYQ30
Caution
The thic
kness of the pipes in the tab
le sho
ws the requirements of J
apanese
High Pressure Gas Control lo
w
. (As of J
an.
2003)
The thic
kness and mater
ial shall be selected in accordance with local code
.
Refrig
erant branc
h kit selection
Pipe siz
e selection
F
or a m
ulti outside unit system, mak
e the settings in accordance with
the f
ollo
wing figure
.
Piping betw
een outside unit (
∗
) and refr
iger
ant br
anch kit (par
t A)
Piping betw
een outside br
anches (par
t B)
Piping betw
een outside br
anch and outside unit (par
t C)
Ho
w to calculate the ad
ditional refrig
erant
to be c
har
g
e
d
Outside unit
r
s
u
Heat reco
ver
y system
Heat pump system
φ
15.9 × 0.99
φ
19.1 × 0.80
φ
22.2 × 0.80
φ
28.6 × 0.99
φ
12.7 × 0.80
φ
15.9 × 0.99
φ
19.1 × 0.80
φ
28.6 × 0.99
φ
34.9 × 1.21
φ
41.3 × 1.43
φ
28.6 × 0.99
(Unit:mm)
Indoor unit connection piping siz
e
Indoor units ( 1 - 8 )
Heat reco
ve
ry
system
( 1 - 6 )
Cooling only ( 7
· 8 )
BS units ( B1 - B4 )
Indoor units ( 1 - 8 )
Heat reco
ve
ry
system ( 1 - 6 )
Cooling only ( 7
· 8 )
BS units ( B1 - B5 )
BS units ( B1 - B5 )
Indoor units ( 1 - 8 )
Heat reco
ve
ry
system
( 1 - 4 , 7 · 8 )
Indoor units ( 1 - 8 ) Cooling only ( 5
· 6 )
l
f g
a
b
c
d
e
h
H2 H1
H1
1
12
3
4
5
6
7
8
23
4
5
6
7
1
1
2
3
456
7
8
23456
7
8
8
B2
B3
B4
B1
B1
B2
B3
B4
B5
B2
B3
B4
B5
d
e
f
g h
i j
k
l
m
a
a
b
a
b
d
f
c
e
g
f
h
j
d
c
e
gi
k
l m
n
o
b
Outside unit
Outside unit
1
12
3
45
6
7
8
2
34
5
6
7
8
B1
B2
B3
B4
B5
B6
B6
B5
B4
B3
B2
B1
BS units ( B1 - B6 )
BS units ( B1 - B6 )
Indoor units ( 1 - 8 )
Heat reco
ve
ry
system
( 1 - 6 )
Heat reco
ve
ry
system ( 1 - 6 ) Indoor units ( 1 - 8 )
Cooling only ( 7
· 8 )
Cooling only ( 7
· 8 )
First outside br
anch
s
r
p
q
n o
k
i
l
j
h
g
f
H3
H1
H2
h i
j
k
l
m
n
o
BS unit
Outside unit side
(Thic
k
line):
3-piping
Indoor unit side
(3-piping)
(2-piping)
HP/LP gas piping
Gas piping Liquid piping
Liquid piping
Suction gas piping
• Piping betw
een outside unit and BS unit
HP/LP gas piping Suction gas piping Liquid piping
(Thin line):
2-piping
• Piping betw
een BS unit and indoor unit,
Gas piping Liquid piping
In case of m
ulti outside unit system, re-read the
[outside unit] as [the first outside br
anch seen from the
indoor unit side].
[
∗
]
Corrected vo
lume b
y
outside unit
t
H1 H2
Heat reco
ve
ry
system
( 1 - 4 , 7 · 8 )
Cooling only ( 5
· 6 )
m
Branch with REFNET joint
Branch with REFNET joint and REFNET header
Branch with REFNET header
Example 1 Example 4
Example 2 Example 5
Example 3 Example 6
(Unit:
mm)
(Unit:
mm)
φ
28.6 × 0.99
φ
22.2 × 0.80
φ
12.7 × 0.80
φ
15.9 × 0.99
16HP 18,20HP
Suction gas pipe
T
otal capacity
of outside unit
Piping siz
e (outer diameter × Min.
thic
kness)
HP/LP gas pipe
Liquid pipe
φ
19.1 × 0.80
φ
9.5 × 0.80
φ
12.7 × 0.80
φ
15.9 × 0.99
< 150 150
≤
x< 200
200
≤
x< 290
290
≤
x< 420
420
≤
x< 640
640
≤
x< 920
920
≤
Suction gas pipe
Indoor capacity inde
x
Piping siz
e (outer diameter × minim
um wall thic
kness)
HP/LP gas pipe
Liquid pipe
(Unit:
mm)
φ
12.7 × 0.80
φ
15.9 × 0.99
φ
19.1 × 0.80
φ
22.2 × 0.80
φ
6.4 × 0.80
φ
9.5 × 0.80
φ
9.5 × 0.80
20, 25, 32, 40, 50 type 63, 80, 100, 125 type 200 type 250 type
Gas pipe
Indoor capacity type
Piping siz
e (outer diameter × minim
um
wall thic
kness)
Liquid pipe
B1
B1
B2
B3
B4
n
p
o
H2
c d
e f
g h
i
j
k
l
n
p
o
u
t
s
r
H3
H2 H1
H3
H1
H2
A
B
A
AB
CDE
B
F
AB
C
D
E
G
FG
01_EN_3P153897-8L.fm Page 11 Friday, July 11, 2008 5:04 PM