Daikin RXYQ120PYDN, Installation Manual

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8 English
6-5 Example of connection
Example of connection (Connection of 8 indoor units)
(*1) " " Indicate the Outside unit multi connection piping kit. (*2) In case of multi outdoor system, re-read "outside unit" to "the first Outside unit multi connection piping kit" as seen from the indoor unit.
Branch with REFNET joint
Branch with REFNET joint and header
Branch with REFNET header
Single
outside system
Multi
outside system
Outside unit
Outside unit
Outside unit
Outside unit
Outside unit
REFNET joint (A~G) REFNET joint (A~G)
Indoor unit ( 1 ~ 8 )
REFNET joint (A~G)
REFNET header
REFNET header
First outside unit multi connection piping kit
REFNET joint (A~G)
REFNET header
REFNET header
Maximum
allowable
length
Allowable
height
difference Allowable length after the branch
Between outside unit (*2) and indoor unit Between first outside unit multi connection piping kit and outside unit (in case of multi system) Between outside and indoor units Between indoor and indoor units Between outside and outside units
Actual pipe length Equivalent length Actual and Equivalent pipe length Actual pipe length Difference in height Difference in height Difference in height Total extention length
Pipe length between outside unit (*2) and indoor unit
≤
540 ft
Example 8 : a + b + c + d + e + o
≤
540 ft
Example 6 : a + b + h
≤
540 ft, 8 : a + i + j
≤
540 ft
Example 8 : a + i
≤
540 ft
Equivalent pipe length between outside unit (*2) and indoor unit
≤
620 ft (Note 1)
(Assume eqivalent pipe length of REFNET joint to be 1.6 ft, that of REFNET header to be 3.3 ft, for calculation purposes) Total piping length from outside unit (*2) to all indoor unit
≤
3280 ft
Actual pipe length from first outside unit multi connection piping kit to outside unit
≤
33 ft
Equivalent pipe length from first outside unit multi connection piping kit to outside unit
≤
43 ft
Actual pipe length from first refrigerant branch kit (either REFNET joint or REFNET header) to indoor unit
≤
130 ft (Note 2)
Example 8 : b + c + d + e + o
≤
130 ft
Difference in height between outside unit and indoor unit (H1)
≤
164 ft (Max 130 ft if the outside unit is below)
Difference in height between adjacent indoor units (H2)
≤
49 ft
Difference in height between adjacent outside units (H3)
≤
16 ft
Outside unit
r
≤
33 ft
(Equivalent length
≤
43 ft)
t
≤
33 ft
(Equivalent length
≤
43 ft)
Example 6 : b + h
≤
130 ft, 8 : i + j
≤
130 ft
Example 8 : i
≤
130 ft
a
b
c
d
e
a
b
c
d
e
H1
H1
H1
H2
o
n
m
k
f
h
g
i
h
g
m
k
G
F
j
AB
C
D
E
H1
o
n
AB
C
D
E
12
34
567
8
H2
G
F
12
34
567
8
Indoor unit ( 1 ~ 8 )
Indoor unit ( 1 ~ 8 ) Indoor unit ( 1 ~ 8 )
Indoor unit ( 1 ~ 8 ) Indoor unit ( 1 ~ 8 )
a
a
i
i
cd
ef
g
h
A
A
B
H2
12
3
4
5
6
7
8
H3
r
t
H3
H3
r
t
a
b
cd
g
h
B
8
H2
r
t
a
12
3
4
5
6
7
b
c
j
b
e
f
d
c
b
e
fg
d
i
gh
H2
H1 H1
12
3
4
5
6
7
8
12
3
4
5
6
7
8
i
h
H2
r
t
ef
Outside unit
f
j
ij
k
k
01_EN_3P215731-2.fm Page 8 Tuesday, December 4, 2007 12:04 PM