Mitsubishi Electric City Multi PURY-EP-YJM-A Installation Manual page 6

9
[Fig. 9.2.2]
A
D
<A> The piping from the outdoor units to twinning pipe must be made to slope downwards the twinning pipe. (high-pressure side only)
<B> Slope of twinning pipe (high pressure side only)
E
<C> Pipe connection example
F
H
10
[Fig. 10.2.1]
<A> Refrigerant service valve (High-pressure side/brazed type)
<B> Refrigerant service valve (Low-pressure side/brazed type)
P200~P400
EP200~EP300
<A> <B>
E
D
A
G
F
A: Shaft
B: Shaft
C: Stopper pin
D: Service port
E: Cap
F: Pinched connecting pipe severing portion
G: Pinched connecting pipe brazing portion
6
C
B
D
G
I
J
K
P450
EP350
D
<A> <B>
B
A
O
S
C
D
E
G
F
9.2
C
D
A: Downward slope
B: Upward slope
C: BC controller (standard or main)
D: Twinning pipe
E: Slope of the twinning pipe is at an angle within ±15° to the ground
F: Twinning pipe (low-pressure side)
G: Twinning pipe (high-pressure side)
H: On-site piping (low-pressure connecting pipe: between outdoor units)
I: On-site piping (low-pressure main pipe: to BC controller)
J: On-site piping (high-pressure main pipe: to BC controller)
K: Straight run of pipe that is 500 mm or more
10.2
[Fig. 10.2.3]
A
A: Example of closure materials (fi eld supply)
B: Fill the gap at the site
* When not attaching a low-pressure twinning pipe.
B