Mitsubishi Electric City Multi PUHY-P-YKB-A1 series Installationshandbuch Seite 27

・Connecting the on-site piping and the service valve piping
When routing the pipes through the front of the unit
P200
Use the supplied connecting pipe ①.
*1
P250
*2
Use the supplied connecting pipes ① and ②.
*3 Use the supplied connecting pipes ⑤ and ③.
P300
*4*6
P350
Use the supplied connecting pipes ⑤ and ④.
*5
P400
*6
P450
Use the supplied connecting pipe ⑤.
P500
When routing the pipes through the bottom of the unit
P200
Expand the end of the on-site piping. (ID ø9.52 mm (ø3/8 in))
*1
P250
*2
Use the supplied connecting pipe ②.
*3
Use the supplied connecting pipe ③.
P300
*4*6
P350
Use the supplied connecting pipe ④.
*5
P400
*6
P450
Expand the end of the on-site piping. (ID ø15.88 mm (ø5/8 in))
P500
<Reference> Size of refrigerant pipes
P200 ø9.52 (ø3/8)
*1 ø9.52 (ø3/8)
P250
*2 ø12.7 (ø1/2)
*3 ø9.52 (ø3/8)
P300
*4*6 ø12.7 (ø1/2)
P350 ø12.7 (ø1/2)
*5 ø12.7 (ø1/2)
P400
*6 ø15.88 (ø5/8)
P450 ø15.88 (ø5/8)
P500 ø15.88 (ø5/8)
*1 When the piping length from the outdoor unit to the farthest indoor unit is less than 90 m (295 ft)
*2 When the piping length from the outdoor unit to the farthest indoor unit is 90 m (295 ft) or more
*3 When the piping length from the outdoor unit to the farthest indoor unit is less than 40 m (131 ft)
*4 When the piping length from the outdoor unit to the farthest indoor unit is 40 m (131 ft) or more
*5 When the unit is used alone
*6 When the unit is used in combination with other outdoor units
・When expanding the on-site piping, satisfy the minimum insertion depth requirement as follows.
Pipe size [mm (in)]
ø5 (ø1/4) or more, less than ø8 (ø3/8)
ø8 (ø3/8) or more, less than ø12 (ø1/2)
ø12 (ø1/2) or more, less than ø16 (ø11/16)
ø16 (ø11/16) or more, less than ø25 (ø1)
ø25 (ø1) or more, less than ø35 (ø1-7/16)
ø35 (ø1-7/16) or more, less than ø45 (ø1-13/16)
KD79S703H01
Liquid side
Liquid side
On-site piping [mm (in)]
Liquid Gas
ø22.2 (ø7/8)
ø28.58 (ø1-1/8)
Minimum insertion depth [mm (in)]
Use the supplied connecting elbow ⑥ and connecting
pipe ⑦.
Use the supplied connecting elbow ⑥.
Use the supplied connecting pipe ⑦.
Expand the end of the on-site piping. (ID ø28.58
mm (ø1-1/8 in))
Service valve piping [mm (in)]
Liquid Gas
ø9.52 (ø3/8)
ø28.58 (ø1-1/8)
ø15.88 (ø5/8)
6 (1/4)
7 (5/16)
8 (3/8)
10 (7/16)
12 (1/2)
14 (9/16)
GB-25
Gas side
Gas side