Daikin VRV III RXYQ5-54PY1, Руководство по обслуживанию

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Si34-601A Example of connection (R-410A Type)
Appendix 363
6. Example of connection (R-410A Type)
Example of connection
(Connection of 8 indoor units)
Single outdoor
system
Example refrigerant branch using REFNET joint Example refrigerant branch using REFNET joint and REFNET header
Example refrigerant branch using REFNET header
a b c d e f
g
H1
p
Outdoor unit REFNET joint (A-G)
Indoor units ( 1 - 8 )
H1
H2
a a
i
b
c d e f
g
h
k
j
7 8 H1
H2
Outdoor unit
REFNET header
c d e f
g
h i b
1 2 3 4 5 6 7
8
Multi outdoor
system
(
∗
2) In case of multi outdoor system, re-read to the first
Outdoor unit multi connection piping kit as seen
from the indoor unit.
Maximum
allowable
length
Between outdoor (
∗
2)
and indoor units
Between outdoor unit and Outdoor unit multi
connection piping kit (Only for multi system)
Between outdoor and indoor units
Between indoor and indoor units
Between outdoor and outdoor units
Actual pipe length
Actual pipe length
Actual pipe length
Equivalent length
Difference in height
Difference in height
Difference in height
Equivalent length
Total extension length
Pipe length between outdoor (
∗
2) and indoor units
≤
165m
Example unit 8 : a + b + c + d + e + f + g + p
≤
165m
Example unit 8 : b + c + d + e + f + g + p
≤
40m
Equivalent pipe length between outdoor (
∗
2) and indoor units
≤
190m (assume equivalent pipe length of REFNET joint to be 0.5m, that of REFNET header to be 1m, calculation purposes) (See Note 1 - Next page)
Pipe length between outdoor unit and Outdoor unit multi connection piping kit
≤
10m, Equivalent length between outdoor unit and Outdoor unit multi connection piping kit
≤
13m
Difference in height between outdoor and indoor units (H1)
≤
50m (Max 40m if the outdoor unit is below in case of 5HP type) (
≤
90m if the outdoor unit is below in case of 8-54Hp type)
Difference in height between indoor units (H2)
≤
15m
Difference in height between outdoor unit (H3)
≤
5m
Pipe length from first refrigerant branch kit (either REFNET joint or REFNET header ) to indoor unit
≤
40m (See Note 2 - Next page)
Total pipe length from outdoor unit (
∗
2) to all indoor units
≤
1000m
Allowable
height
length
Allowable length after the branch
Refrigerant branch kit selection
Pipe size selection
Example unit 8 : a + i
≤
165m
Example unit 6 : a + b + h
≤
165m, unit 8 : a + i + k
≤
165m
Example unit 8 : i
≤
40m Example unit 6 : b + h
≤
40m, unit 8 :i + k
≤
40m
r
≤
10m (Equivalent length:
≤
13m)
s
≤
10m (Equivalent length:
≤
13m)
t
≤
10m (Equivalent length:
≤
13m)
Refrigerant branch kits can only be
used with R-410A.
How to select the REFNET joint
• When using REFNET joint at the first branch counted from the outdoor unit side.
Choose from the following table in accordance with the outdoor unit capacity type.
(Example: REFNET joint A)
Temper grade and wall thickness for pipes.
(Temper grade, O type and 1/2H type indicate the material types specified in JIS
H 3300.)
Piping between refrigerant branch kits
• Choose from the following table in accordance with the total capacity index of
all the indoor units connected below this.
• Do not let the connection piping exceed the main refrigerant piping size.
How to calculate the additional refrigerant to be
charged
Additional refrigerant to be charged R (kg)
(R should be rounded off in units of 0.1Kg.)
5HP type
8, 10HP type
12~22HP type
24HP type~
KHRP26A22T
KHRP26A33T
KHRP26A72T
KHRP KHRP26M73TP
• Choose the REFNET joints other than that for the first branch from the following table in accordance with the total
capacity index of all the indoor units connected below the REFNET joint.
How to select the REFNET header
• Choose from the following table in accordance with the total capacity index of all the indoor units connected below the REFNET header.
• Note: 250 type indoor unit cannot be connected below the REFNET header.
< 200
200
≤
x< 290
290
≤
x< 640
640
≤
KHRP26M22H (Max. 4 branch)
KHRP26M33H (Max. 8 branch)
KHRP26M72H (Max. 8 branch) (See Note 3 - Next page)
KHRP26M73H (Max. 8 branch) + KHRP26M73HP
How to select the Outdoor unit multi connection piping kit (This is required when the system is multi outdoor unit system.)
• Choose from the following table in accordance with the number of outdoor units.
2 units
3 units
BHFP22P100
BHFP22P151
Example REFNET joint C: indoor units
Example for indoor units connected downstream
5HP type
8HP type
10HP type
12~16HP type
18~22HP type
24HP type
26~34HP type
36~54HP type
Indoor unit total capacity index
< 150
150
≤
x< 200
200
≤
x< 290
290
≤
x< 420
420
≤
x< 640
640
≤
x< 920
920
≤
Piping between refrigerant branch kit and indoor unit
• Match to the size of the connection piping on the indoor unit.
20 · 25 · 32 · 40 · 50 type
63 · 80 · 100 · 125 type
200 type
250 type
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
1 6.4 × 10m
h:
φ
1 6.4 × 20m
i :
φ
12.7 × 10m
j :
φ
1 6.4 × 10m
k:
φ
1 6.4 × 9m
(Unit:mm)
(Unit:mm)
(Unit:mm)
(Unit:mm)
(See Note 1 - Next page)
R= +
Indoor unit total capacity index Refrigerant branch kit name
Number of outdoor units
Connection piping kit name
Outdoor unit capacity type Refrigerant branch kit name
Outdoor unit capacity type
Gas pipe
Indoor unit capacity type
Liquid pipe
Piping size (O.D.)
+ +
+
In case the outdoor unit is
RXYQ34 type and the
piping lengths are as at
right
R= 30 0.26 + 10 0.18 + 10 0.12 + 40 0.059 + 49 0.022 =14.238
b a i c+d+e+f
14.2 kg
Total length (m)
of liquid piping
size at
φ
22.2






×0.37
Total length (m)
of liquid piping
size at
φ
19.1






×0.26
Total length (m)
of liquid piping
size at
φ
15.9






×0.18
Total length (m)
of liquid piping
size at
φ
12.7






×0.12 +
Total length (m)
of liquid piping
size at
φ
9.5






×0.059
Total length (m)
of liquid piping
size at
φ
6.4






×0.022
Example for refrigerant branch using REFNET joint and REFNET header
A B
For the multi outdoor unit system, select in accordance with the following figure.
(
∗
1) “ ” indicate the Outdoor unit multi
connection piping kit
A B C D E F G
1 2 3 4 5 6 7
8
H2
h i j k l m n
1 2 3 4 5 6
Outdoor unit
REFNET joint (A • B)
REFNET header
3 + 4 + 5 + 6 + 7 + 8
Example REFNET joint B: indoor units
Example REFNET header: indoor units 1 + 2 + 3 + 4 + 5 + 6
7 + 8
Example REFNET header: indoor units 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8
Caution
φ
15.9
φ
19.1
φ
22.2
φ
28.6
φ
34.9
φ
41.3
φ
15.9
φ
19.1
φ
22.2
φ
28.6
φ
34.9
φ
41.3
φ
12.7
φ
15.9
φ
19.1
φ
22.2
φ
6.4
φ
9.5
φ
9.5
φ
12.7
φ
15.9
φ
19.1
φ
9.5
φ
12.7
φ
15.9
φ
19.1
g+h+j+k
The thickness of the pipes in the table shows the requirements of Japanese
High Pressure Gas Control low. (As of Jan. 2003)
The thickness and material shall be selected in accordance with local code.
a b c d e f g
8
H2
H1
H3
p
Outdoor unit
REFNET joint (A-G)
h i j k l m n
1 2 3 4 5 6 7
First Outdoor
unit multi connection
piping kit
Indoor units ( 1 - 8 )
Indoor units ( 1 - 8 ) Indoor units ( 1 - 8 )
Part C
Part B Part A
O type
1/2H type
φ
6.4 0.80
φ
9.5 0.80
φ
12.7 0.80
φ
15.9 0.99
φ
19.1 0.80
φ
22.2 0.80
φ
25.4 0.88
φ
28.6 0.99
φ
31.8 1.10
φ
34.9 1.21
φ
38.1 1.32
φ
41.3 1.43
Piping between Outdoor unit and first refrigerant branch kit.
Piping between first Outdoor unit multi connection piping kit and first refrigerant
branch kit. (Part A)
• Choose from the following table in accordance with the outdoor unit capacity type.
Piping between Outdoor unit multi connection piping kits. (Part B)
Piping between outdoor unit and Outdoor unit multi connection piping kit. (Part C)
• Choose from the following table in accordance with the total capacity type of all
the outdoor units connected above Outdoor unit multi connection piping kit.
• When multi outdoor system are installed, be sure to
use the special separately sold Outdoor unit multi
connection piping kit.
The table at right shows how to select the proper kit.
A B C
D
E F G
H1
H2
a
i
b
Outdoor unit
c d e f
g
h
1 2 3 4 5 6
REFNET header
k
j
7 8
H3
REFNET joint (A • B)
A B
Indoor units ( 1 - 8 )
H2
8
H1
H3
a
Outdoor unit
REFNET header
c d e f
g
h
i
b
Indoor units ( 1 - 8 )
1 2 3 4 5 6 7
r
t
s
Outdoor unit
Temper grade Copper tube O.D.
Copper tube W.T.
(Minimum requirement)
< 200
200
≤
x< 290
290
≤
x< 640
640
≤
KHRP26A22T
KHRP26A33T
KHRP26A72T
KHRP KHRP26M73TP
Indoor unit total capacity index Refrigerant branch kit name
Gas pipe Liquid pipe
Piping size (O.D.)
Gas pipe Liquid pipe
Piping size (O.D.)