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(15)-4 PQHY-P650-900YSHM Piping (Connection with standard CITY MULTI indoor units, PWFY-P100/200VM-E-AU)
Table15-4-6. R410A Joint selection rule
Total down-stream Indoor capacity
Joint
~
P200
CMY-Y102S-G2
P201 ~
P400
CMY-Y102L-G2
P401 ~
P650
CMY-Y202-G2
P651 ~
CMY-Y302-G2
*The total capacity of the units in the downstream of the branch joint on at least one of the piping lines that
are connected to the branch joint should be 650 or below.
If the total capacity of the units in the downstream of the branch joints on both lines is 650 or above use two
branch joints (CMY-Y302-G2).
*Concerning detailed usage of Joint parts, refer to its Installation Manual.
Table15-4-7. R410A Header selection rule
4-branch Header 8-branch Header 10-branch Header
CMY-Y104-G CMY-Y108-G CMY-Y1010-G
Total down-stream Indoor capacity
<=P200 <=P400 <=P650
* CMY-Y104-G can directly connect PQHY-P200YHM, but can NOT directly connect PQHY-P250YHM or above;
* CMY-Y108-G can directly connect PQHY-P200-450Y(S)HM, but can NOT directly connect PQHY-P500YSHM or above;
* CMY-Y1010-G can directly connect PQHY-P200-650Y(S)HM;
* CMY-Y104-G can NOT connect P200,P250 Indoor, but CMY-Y108, Y1010-G can do;
* Concerning detailed usage of Header parts, refer to its Installation Manual.
2nd Heat source
Twinning Kit
1st Heat source
Twinning Kit
Note1. No Joint after Header; Piping direct to Indoor Unit from Header;
Note2. As bents cause pressure loss on transportation of refrigerant, fewer bents design is better;
Piping length needs to consider the actual length and equivalent length which bents are counted.
Equivalent piping length (m)=Actual piping "M" x Quantity of bent.
H (HU above IU)
H' (HU under IU)
h2
1st Joint
Joint
L2
L1
IU
g
IU
e
IU
d
C
D
IU
f
E
T
S
M
N
A
B
Header
IU : Indoor unit , HU : Heat source unit
Fig. 15-4A Piping scheme
2m
To indoor unit
To indoor unit
To indoor unit
To indoor unit
2 m max
Trap (gas
pipe only)
Upward
incline
Downward
incline
Install the pipes from the heat source unit to the branch
joint with a downward incline.
If the length of pipe between the branch joint and heat source
unit exceeds 2 m, provide at rap at a distance 2 m or less
from the branch joint.
OK
NG
h1
b
a
IU
IU
IU
c
Capped
Table15-4-1. Piping length (m [ft.])
Item
Piping in the figure
Max. length Max. equivalent length
Total piping length
S+T+M+N+A+B+C+D+E+a+b+c+d+e+f+g 500[1640'] -
Distance between HU and HU
M+N+S+T
10[32']
-
Height between HU and HU
h2
0.1[0.3']
-
Farthest IU from HU (L1)
M(N)+S+A+C+D+E+g / M(N)+S+A+B+c 165[541']
190[623']
Farthest IU from the first Joint (L2)
C+D+E+g / B+c
40[131']
40[131']
Height between HU and IU (HU above IU) H
50[164']
-
Height between HU and IU (HU above IU) H' 40[131']
-
Height between IU and IU
h1
15[49']
-
HU: Heat source Unit, IU: Indoor Unit
Table15-4-3. Piping "A" size selection rule
(mm [in.])
Heat source and the first Joint
Pipe(Liquid)
Pipe(Gas)
CMY-Y300VBK2=CMY-Y302-G2
ø19.05[3/4"]
ø34.93[1-3/8"]*1
ø19.05[3/4"]
ø41.28[1-5/8"]*2
For Piping size"M","N","S","T", please refer to specification of the Twining kit
CMY-Y300VBK2 at the Heat source unit's external drawing.
*1 PQHY-P650-800YSHM
*2 PQHY-P850, 900YSHM
Table15-4-4. Piping"B","C","D","E" size selection rule
(mm [in.])
Total down-stream Indoor capacity
Pipe(Liquid)
Pipe(Gas)
~ P140
ø9.52 [3/8"]
ø15.88 [5/8"]
P141 ~
P200
ø9.52
[3/8"]
ø19.05
[3/4"]
P201 ~
P300
ø9.52
[3/8"]
ø22.20
[7/8"]
P301 ~
P400
ø12.70
[1/2"]
ø28.58
[1-1/8"]
P401 ~
P650
ø15.88
[5/8"]
ø28.58
[1-1/8"]
P651 ~
P800
ø19.05
[3/4"]
ø34.93
[1-3/8"]
P801 ~
ø19.05 [3/4"]
ø41.28 [1-5/8"]
Table15-4-5. Piping"a","b","c","d","e","f","g" size selection rule
(mm [in.])
Indoor Unit size
Pipe(Liquid)
Pipe(Gas)
P20,P25,P32,P40,P50,GUF-50RD(H)
ø6.35
[1/4"]
ø12.70
[1/2"]
P63,P71,P80,P100,P125,P140,GUF-100RD(H) ø9.52 [3/8"]
ø15.88 [5/8"]
P200
ø9.52
[3/8"]
ø19.05
[3/4"]
P250
ø9.52
[3/8"]
ø22.20
[7/8"]
Table15-4-2. Bent equivalent length "M"
Heat source Model
M (m/bent [ft./bent])
PQHY-P650YSHM-A
0.50 [1.64]
PQHY-P700YSHM-A
0.70 [2.29]
PQHY-P750YSHM-A
0.70
[2.29]
PQHY-P800YSHM-A
0.70 [2.29]
PQHY-P850YSHM-A
0.80 [2.62]
PQHY-P900YSHM-A
0.80 [2.62]
*1
*2
*1 90m is available depending on the model and installation conditions. For more detailed information, contact your local distributor.
*2 60m is available depending on the model and installation conditions. For more detailed information, contact your local distributor.
HU
Note3.
Indoor capacity is described as its model size;
For example, PEFY-P32VMA-E, its capacity is P32;
Note4.
Total down-stream Indoor capacity is the summary of the model size of Indoors downstream.
For example, PEFY-P25VMA-E+PEFY-P32VMA-E: Total Indoor capacity=P25+P32=P57
Note5.
Piping sized determined by the Total down-stream indoor capacity is NOT necessary
to be bigger than the up-stream one.
i.e. A>=B; A>=C>=D
HU
HU
Содержание PQHRY-P250YHM-A
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