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Daikin FXL63LVE [54/56] Selection procedure
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6
• Systems • Introduction
53
• Introduction
6 Selection procedure
6-6 Refrigerant pipe selection
6-6-5 RSEYP16-30K
Branch with refnet joint Branch with refnet joint and refnet header Branch with refnet header
Maximum
allowable
length
Between outdoor and
indoor unit
Actual pipe length
Actual pipe length
Actual pipe length
Example of downstream indoor units
Pipe length between outdoor and indoor units ≤ 100m
Example unit 8 : a + b + c + d + e + s ≤ 100m
Example unit 8 : b + c + d + e + s ≤ 40m
Example in case of refnet joint C: indoor units 5 + 6 + 7 + 8
Between outdoor unit and the uppermost stream refrigerant branch kit
•
Select pipe size according to outdoor system.
Between two immediately adjacent refrigerant branch kits and BS unit
•
Select the proper pipe size based on the total capacity index of indoor units connected downstream, using
the following table.
•
Select connection pipe size according to the outdoor unit (table on the bottom left). Do not select a larger
pipe size.
Between BS unit and indoor unit
l
Pipe size for direct connection to indoor unit must be the same as the connection size of indoor unit.
Example for refrigerant branch using refnet joint and header (RSEYP30K)
Example in case of refnet joint B: indoor units 7 + 8
Example in case of refnet header: indoor units 1 + 2 + 3 +4+5+6
Example in case of refnet header: indoor units 1 +2+3+4+5+6+7+8
How to select the refnet header
•
Select the proper branch kit model based on the total capacity index of indoor units installed after
the header using the following table.
•
Branching is impossible between refnet header and indoor unit.
•
For systems with a total capacity of 640 and over,
connect a refnet joint branch.
•
In case of 2 pipes, please select KHRP26K-H series.
Example unit 6 : b + l ≤ 40m, Example unit 8 :m + n + p ≤ 40m Example unit 8 : o ≤ 40m
Example unit 6 : a + b + l ≤ 100m Example unit 8 : a + o ≤ 100m
Equivalent pipe length between outdoor and indoor units ≤ 125m (assume equivalent pipe length of refnet joint to be 0.5m, that of refnet header to be 1m, that of BS unit to be 4m, calculation purposes)
Pipe length between outdoor unit (main) and outdoor unit (sub)(Q) ≤ 5m
Difference in height between indoor units and outdoor units (H1) ≤ 50m ( ≤ 40m or less when oudoor unit is located in a lower position)
Difference in height between adjacent indoor units (H2) ≤ 15m
Difference in height between outdoor unit (main) and outdoor unit (sub) (H3) ≤ 5m
Pipe length from first refrigerant branch kit (either refnet joint or refnet header ) to indoor unit ≤ 40m
Difference in height
Equivalent length
Between outdoor unit (main) and outdoor unit
(sub)
Between outdoor and indoor units
Between adjacent indoor units
Between outdoor unit (main) and outdoor unit (sub)
Allowable
height length
Allowable length after the branch
Refrigerant branch kit selection
Pipe size selection
Pipe size = outer diameter x minimum wall thickness
(Unit; mm).
Use the included reducing joint which matches the pipe size.
Additional refrigerant to be charged
Calculation of additional refrigerant to be charged R (kg) is in function of the total length of liquid Iines L
Note
• Round off R to 1 decimal place
indoor capacity index
< 160
160 ≤ x < 330
330 ≤ x < 640
640 ≤ x
branch kit
KHRP25K18T
KHRP25K20T
KHRP25K40T + KHRP26K40T
KHRP25K75T + KHRP25K75T
indoor capacity index
100
≤ x < 160
50
≤ x < 100
160
≤ x < 330
330
≤ x < 480
480
≤ x < 640
640
≤ x < 700
x > 700
x < 50
Pipe size
Liquid pipe
ø6.4 x t0.8 ø9.5 x t0.8ø12.7 x t0.8
ø9.5 x t0.8
ø9.5 x t0.8
ø12.7 x t0.8
ø15.9 x t1.0
ø19.1 x t1.0
ø19.1 x t1.0
ø19.1 x t1.0
ø15.9 x t1.0
ø19.1 x t1.0
ø25.4 x t1.2
ø34.9 x t1.3
ø34.9 x t1.3
ø41.3 x t1.7
ø41.3 x t1.7
ø12.7 x t0.8
ø15.9 x t1.0
ø19.1 x t1.0
ø25.4 x t1.2
ø25.4 x t1.2
ø25.4 x t1.2
f34.9 x t1.3
Gas pipe
Suction
Discharge
Outdoor system name
RSEYP24K
RSEYP18-20K
RSEYP26K
RSEYP28-30K
RSEYP16K
Pipe size
Liquid pipe
ø15.9 x t1.0 ø28.6 x t1.2ø34.9 x t1.3
ø19.1 x t1.0
ø19.1 x t1.0
ø22.2 x t1.2
ø22.2 x t1.2
ø34.9 x t1.3
ø41.3 x t1.7
ø41.3 x t1.7
ø41.3 x t1.7
ø28.6 x t1.2
ø28.6 x t1.2
ø34.9 x t1.3
ø34.9 x t1.3
Gas pipe
Suction
Discharge
indoor capacity index
20 · 25 · 32 · 40
50 · 63 · 80
100 · 125
200
250
Pipe size
ø
6.4 x t0.8
ø
9.5 x t0.8
ø
9.5 x t0.8
ø
12.7 x t0.8
ø
12.7 x t0.8
ø
12.7 x t0.8
ø
15.9 x t1.0
ø
19.1 x t1.0
ø
25.4 x t1.0
ø
28.6 x t1.2
Liquid pipe
Gas pipe
a: ø
22.2 x 30m
d: ø
9.5 x 5m
b: ø
19.1 x 10m
c: ø
9.5 x 20m
e: ø
9.5 x 20m
f
: ø
9.5 x 5m
g: ø
9.5 x 15m
h: ø
9.5 x 5m
i
: ø
9.5 x 10m
j
: ø
9.5 x 5m
k: ø
9.5 x 20m
l
: ø
9.5 x 5m
m: ø
12.7 x 10m
n
: ø
12.7 x 5m
o
: ø
12.7 x 20m
p
: ø
6.4 x 9m
indoor capacity index
< 160
160 ≤ x < 330
330 ≤ x < 640
branch kit
KHRP25K18H (Max. 6 branches)
KHRP25K37H (Max. 8 branches)
KHRP25K40H
(Max. 8 branches)
+ KHRP26K40HP
R=
R= 30
x0.39 + 10x0.28 + 35x0.12 + 110x0.06 + 9x0.023 +1.0 = 31.27
a
bm+n+o pc+d+e+f+g+h
+i+j+k+l
31.3
0:RSEYP16, 18, 24, 26, 28
0.6:RSEYP20
1.0:RSEYP30
+
x0.39
To tal length
of ø22.2
liquid line
+
x0.28
To tal length
of ø19.1
liquid line
+
x0.19
To tal length
of ø15.9
liquid line
+
x0.12
To tal length
of ø12.7
liquid line
+
x0.06
To tal length
of ø9.5
liquid line
+
x0.023
To tal length
of ø6.3
liquid line
REFNET joint
( ~ )
BS unit
( ~ )
A
A G
F
B1
B1 B4
Indoor unit
( ~ )
18
Cool/Heat selection
possible ( ~ )
16
Cooling only
(
.
)
78
1
h
f
gi k
b
m
a
l
c
G
2
j
3 4
B
B2
o
n
5
B3
q
p
6
B4
C D
r
H2
H1
s
7
8
E
d e
H3
Q
Outdoor unit
REFNET joint
(
.
)
BS unit
( ~ )
A
A B
B5
B1 B5
Indoor unit
( ~ )
18
Cool/Heat selection
possible
( ~ ,
.
)
1 4 78
Cooling only
(
.
)
56
d
c
1
B1
H2
H1
H3
Q
am
b
Outdoor unit
f
e
2
B2
h
g
3
B3
j
i
4
B4
k
5
l
o
n
p
6 7
8
B
REFNET header
BS unit
( ~ )
B1 B6
Indoor unit
( ~ )
18
Cool/Heat selection
possible ( ~ )
16
Cooling only
(
.
)
78
H2
H1
H3
Q
a
Outdoor unit
i
h
4
B4
g
f
3
B3
e
d
2
B2
c
b
1
B1
k
j
5
B5
m
l
6
B6
n
7
o
8
REFNET header
(Unit : mm)
(Unit : mm)
How to select the refnet joint
•
When using refnet joints at the first branch counted from the outdoor unit side.
If the system capacity is < 500, use KHRP25K40T + KHRP26K40TP(Pipe size reducer).
If the system capacity is ≥ 500, use KHRP25K75T + KHRP25K75TP (Pipe size reducer).
•
For refnet joints other than the first branch, select the proper branch kit
model based on the total capacity index of the indoor units installed
after the first branch using the following table:
•
In case of 2 pipes, please select KHRP26K-T series
1
A
Outdoor
unit
Indoor
unit
Discharge gas pipe
(3 pipes) (2 pipes)
Suction gas pipe
Liquid pipe
Gas pipe
Liquid pipe
BS
unit
indoor unit
refnet joint
refnet header
Содержание
- Systems 1
- Technical data 1
- I introduction table of contents 2
- Introduction 3
- Survey of different vrv systems 3
- Systems introduction 3
- 1 indoor unit capacity index 4
- Indoor units using r 407c 4
- Introduction 4
- Outdoor units using r 407c 4
- Systems introduction 4
- 1 indoor units 5
- Nomenclature 5
- V1 ka7 40 s p 9 fxy 5
- 2 outdoor units 6
- Introduction 6
- Nomenclature 6
- Systems introduction 6
- 1 features 7
- Explanation of different systems 7
- No 1 cop 7
- 1 features 8
- Din din 8
- Features 8
- 1 features 9
- An energy efficiency increase of approximately 20 achieved by the adoption of diverse new technologies 9
- Features 9
- Reluctance dc compressor 9
- Features 10
- 2 inverter cooling only heat pump systems 11
- Features 11
- Introduction 11
- Systems introduction 11
- 2 inverter cooling only heat pump systems 12
- Explanation of different systems 12
- Introduction 12
- Systems introduction 12
- 2 inverter cooling only heat pump systems 13
- Explanation of different systems 13
- Introduction 13
- Systems introduction 13
- 2 inverter cooling only heat pump systems 14
- Explanation of different systems 14
- Introduction 14
- Systems introduction 13 14
- 2 inverter cooling only heat pump systems 15
- Explanation of different systems 15
- Introduction 15
- Systems introduction 14 15
- 2 inverter cooling only heat pump systems 16
- Explanation of different systems 16
- Introduction 16
- Systems introduction 15 16
- 2 inverter cooling only heat pump systems 17
- Explanation of different systems 17
- Introduction 17
- Systems introduction 16 17
- 2 inverter cooling only heat pump systems 18
- Explanation of different systems 18
- Introduction 18
- Systems introduction 17 18
- 3 inverter heat recovery systems 19
- Explanation of different systems 19
- 3 inverter heat recovery systems 20
- Explanation of different systems 20
- Introduction 20
- Systems introduction 19 20
- 3 inverter heat recovery systems 21
- Explanation of different systems 21
- Introduction 21
- Systems introduction 20 21
- 3 inverter heat recovery systems 22
- Explanation of different systems 22
- Introduction 22
- Systems introduction 21 22
- 3 inverter heat recovery systems 23
- Explanation of different systems 23
- Introduction 23
- Systems introduction 22 23
- 4 inverter heat pump heat recovery systems 24
- Explanation of different systems 24
- 4 inverter heat pump heat recovery systems 25
- Explanation of different systems 25
- Introduction 25
- Systems introduction 24 25
- 4 inverter heat pump heat recovery systems 26
- Explanation of different systems 26
- Introduction 26
- Systems introduction 25 26
- 4 inverter heat pump heat recovery systems 27
- Explanation of different systems 27
- 1 1 indoor unit selection 28
- 1 2 outdoor unit selection 28
- 1 3 actual performance data 28
- 1 selection procedure standard system based on cooling load 28
- Introduction 28
- Selection procedure 28
- Systems introduction 27 28
- 1 4 selection example based on cooling load 29
- 1 selection procedure standard system based on cooling load 29
- Introduction 29
- Selection procedure 29
- Systems introduction 28 29
- 2 1 rsx y p5l7w1 30
- 2 vrv capacity correction ratio 30
- Introduction 30
- Selection procedure 30
- Systems introduction 29 30
- 2 2 rsx y p8l7w1 31
- 2 vrv capacity correction ratio 31
- Introduction 31
- Selection procedure 31
- Systems introduction 30 31
- 2 3 rsx y p10l7w1 32
- 2 vrv capacity correction ratio 32
- Introduction 32
- Selection procedure 32
- Systems introduction 31 32
- 2 4 rsx y p5k7w1 33
- 2 vrv capacity correction ratio 33
- Introduction 33
- Selection procedure 33
- Systems introduction 32 33
- 2 5 rsx y p8k7w1 34
- 2 vrv capacity correction ratio 34
- Introduction 34
- Selection procedure 34
- Systems introduction 33 34
- 2 6 rsx y p10k7w1 35
- 2 vrv capacity correction ratio 35
- Introduction 35
- Selection procedure 35
- Systems introduction 34 35
- 2 7 rseyp8k 36
- 2 vrv capacity correction ratio 36
- Introduction 36
- Selection procedure 36
- Systems introduction 35 36
- 2 8 rseyp10k 37
- 2 vrv capacity correction ratio 37
- Introduction 37
- Selection procedure 37
- Systems introduction 36 37
- 3 1 indoor unit selection 38
- 3 2 outdoor unit selection 38
- 3 3 actual performance data 38
- 3 selection procedure system based on cooling load 38
- Introduction 38
- Selection procedure 38
- Systems introduction 37 38
- 3 4 selection example based on cooling load 39
- 3 selection procedure system based on cooling load 39
- Introduction 39
- Selection procedure 39
- Systems introduction 38 39
- 3 4 selection example based on cooling load 40
- 3 selection procedure system based on cooling load 40
- Introduction 40
- Selection procedure 40
- Systems introduction 39 40
- 4 1 rsxyp16 18 26kjy1 41
- 4 vrv plus capacity correction ratio 41
- Introduction 41
- Selection procedure 41
- Systems introduction 40 41
- 4 2 rsxyp24kjy1 42
- 4 vrv plus capacity correction ratio 42
- Introduction 42
- Selection procedure 42
- Systems introduction 41 42
- 4 3 rsxyp20 28 30kjy1 43
- 4 vrv plus capacity correction ratio 43
- Introduction 43
- Selection procedure 43
- Systems introduction 42 43
- 4 4 rseyp16 18 26kjy1 44
- 4 vrv plus capacity correction ratio 44
- Introduction 44
- Selection procedure 44
- Systems introduction 43 44
- 4 5 rseyp24kjy1 45
- 4 vrv plus capacity correction ratio 45
- Introduction 45
- Selection procedure 45
- Systems introduction 44 45
- 4 6 rseyp20 28 30kjy1 46
- 4 vrv plus capacity correction ratio 46
- Introduction 46
- Selection procedure 46
- Systems introduction 45 46
- 5 1 unified refnet joints 47
- 5 refnet pipe system 47
- Introduction 47
- Selection procedure 47
- Systems introduction 46 47
- 5 2 unified refnet headers 48
- 5 refnet pipe system 48
- Introduction 48
- Selection procedure 48
- Systems introduction 47 48
- 5 3 example of refnet piping layouts 49
- 5 refnet pipe system 49
- Introduction 49
- Selection procedure 49
- Systems introduction 48 49
- 6 1 rsx y p5 10l 50
- 6 refrigerant pipe selection 50
- Introduction 50
- Selection procedure 50
- Systems introduction 49 50
- 6 2 rsx y p5 10k 51
- 6 refrigerant pipe selection 51
- Introduction 51
- Selection procedure 51
- Systems introduction 50 51
- 6 3 rsxyp16 30k 52
- 6 refrigerant pipe selection 52
- Introduction 52
- Selection procedure 52
- Systems introduction 51 52
- 6 4 rseyp8 10k 53
- 6 refrigerant pipe selection 53
- Introduction 53
- Selection procedure 53
- Systems introduction 52 53
- 6 5 rseyp16 30k 54
- 6 refrigerant pipe selection 54
- Introduction 54
- Selection procedure 54
- Systems introduction 53 54
- Eede02 2 2a 08 2002 prepared in belgium by vanmelle 56
- Specifications are subject to change without prior notice 56
- Systems 56
- Zandvoordestraat 300 b 8400 ostend belgium internet http www daikineurope com 56
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