Pqhy-P200-300Yhm Piping; (Connection With Standard City Multi Indoor Units, Pwfy-P100/200Vm-E-Au) - Mitsubishi Electric PQHY-P200YHM-A Data Book

(15)-2 PQHY-P200-300YHM Piping (Connection with standard CITY MULTI indoor units, PWFY-P100/200VM-E-AU)
HU
A
1st Joint
Fig. 15-2A Piping scheme
Table15-2-1. Piping length
Item
Total piping length
Farthest IU from HU (L1)
Farthest IU from first Joint (L2)
Height between HU and IU (HU above IU) H
Height between HU and IU (HU under IU) H'
Height between IU and IU
HU: Heat source Unit, IU: Indoor Unit
Table15-2-3. Piping "A" size selection rule
Heat source and the first Joint
PQHY-P200YHM=CMY-Y102L-G2,Y102S-G2
PQHY-P250YHM=CMY-Y102L-G2
PQHY-P300YHM=CMY-Y102-G2
*1. A>=90m [295ft.], ø12.70mm [1/2in.] ; A<90m [295ft.], ø9.52mm [3/8in.]
*2. A>=40m [131ft.], ø12.70mm [1/2in.]
Table15-2-4. R410A piping"B","C","D","E"size selection rule
Total down-stream Indoor capacity
~ P140
P141 ~ P200
P201 ~ P300
P301 ~ P400
P401 ~ P650
P651 ~
Table15-2-5. Piping "a","b","c","d","e","f","g" size selection rule
Indoor Unit size
P20,P25,P32,P40,P50,GUF-50RD(H)
P63,P71,P80,P100,P125,P140,GUF-100RD(H) ø9.52 [3/8"]
P200
P250
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;
B
L1
C
L2
D E
Joint
d e
IU IU
Piping in the figure Max. length
A+B+C+D+E+a+b+c+d+e+f+g 300 [984']
A+C+D+E+g / A+B+c
C+D+E+g / B+c
h1
(mm [in.])
Pipe(Liquid) Pipe(Gas)
ø9.52 [3/8"] ø19.05 [3/4"]
ø9.52 [3/8"] *1 ø22.20 [7/8"]
ø9.52 [3/8"] *2 ø22.20 [7/8"]
(mm [in.])
Pipe(Liquid) Pipe(Gas)
ø9.52 [3/8"] ø15.88 [5/8"]
ø9.52 [3/8"] ø19.05 [3/4"]
ø9.52 [3/8"] ø22.20 [7/8"]
ø12.70 [1/2"] ø28.58 [1-1/8"]
ø15.88 [5/8"] ø28.58 [1-1/8"]
ø19.05 [3/4"] ø34.93 [1-3/8"]
(mm [in.])
Pipe(Liquid) Pipe(Gas)
ø6.35 [1/4"] ø12.70 [1/2"]
ø15.88 [5/8"]
ø9.52 [3/8"] ø19.05 [3/4"]
ø9.52 [3/8"] ø22.20 [7/8"]
Piping length needs to consider the actual length and equivalent length which bents are counted.
Equivalent piping length (m)=Actual piping length+"M" x Quantity of bent.
g
f
IU IU
(m [ft.])
Max. equivalent length
-
165 [541'] 190 [623']
40 [131'] 40 [131']
50 [164'] -
40 [131'] -
15 [49'] -
Table15-2-6. R410A Joint selection rule
Total down-stream Indoor capacity
~ P200
P201 ~ P400
P401 ~ P650
P651 ~
*Concerning detailed usage of Joint parts, refer to its Installation Manual.
Table15-2-7. R410A Header selection rule
Total down-stream Indoor capacity <=P200
* 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-P200-600Y(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.
Note3. Indoor capacity is described as its model size;
For example, PEFY-P32VMM-E, its capacity is P32;
Note4. Total down-stream Indoor capacity is the summary of the model size of Indoors downstream.
For example, PEFY-P25VMM-E+PEFY-P32VMM-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
- 58 -
Header
Capped
a b c
IU IU IU
IU : Indoor unit , HU : Heat source unit
Table15-2-2. Bent equivalent length "M"
Heat source Model M (m/bent [ft./bent])
PQHY-P200YHM-A
PQHY-P250YHM-A
PQHY-P300YHM-A
Joint
CMY-Y102S-G2
CMY-Y102L-G2
CMY-Y202-G2
CMY-Y302-G2
4-branch Header 8-branch Header 10-branch Header
CMY-Y104-G CMY-Y108-G
<=P400
0.35 [1.15]
0.42 [1.38]
0.42 [1.38]
CMY-Y1010-G
<=P650