Mitsubishi Electric PURY-(E)P-YLM-A (-BS) Installation Manual page 42

・When the piping length from the outdoor unit to the farthest indoor unit is longer than 30.5 m (100 ft)
Amount of High-pressure pipe
additional = ø1-1/8 total length
charge (oz) × 3.54 (oz/ft)
Liquid pipe ø1/2
+ total length
× 1.19 (oz/ft)
Total capacity of
outdoor units
+
Number of sub BC
+
Single
Combination
+
Single
Combination
WT07282X01
High-pressure pipe
+ ø7/8 total length
× 2.26 (oz/ft)
Liquid pipe ø3/8
+ total length
× 0.59 (oz/ft)
Amount (oz)
(to be added for standard or
main BC controller)
200
250
300
350–900
Amount (oz)
(to be added for sub
controllers
BC controller)
1 35
2 71
Outdoor unit model
P200 to P250
P300 to P400
P450 to P500
P400 to P550
P600 to P800
P850
P900
EP200 to EP250
EP300 to EP350
EP400 to EP500
EP500 to EP550
EP600 to EP700
EP750
EP800 to EP900
High-pressure pipe
+ ø3/4 total length
× 1.51 (oz/ft)
Liquid pipe ø1/4
+ total length
× 0.23 (oz/ft)
Main BC controller
+
106
HA-type
160
160
212
Total capacity of connected
indoor units
80 or below
81 to 160
161 to 330
331 to 390
391 to 480
+
481 to 630
631 to 710
711 to 800
801 to 890
891 to 1070
1071 to 1250
1251 or above
Amount (oz)
(to be added for
outdoor unit)
0
0
195
0
0
195
389
0
0
35
0
0
35
70
GB-40
High-pressure pipe Liquid pipe ø5/8
+ ø5/8 total length + total length
× 1.08 (oz/ft) × 1.94 (oz/ft)
Amount (oz)
71
Amount (oz)
(to be added for
indoor unit)
71
89
106
124
159
177
212
283
318
353
424
494