Mitsubishi Electric CITY MULTI PUHY-P72-432TNU-A Data Book page 189

12. PIPING DESIGN
Units "ft" and "oz"
<Formula>
• When the piping length from the outdoor unit to the farthest indoor unit is 30.5 m (100 ft) or shorter
Amount of
ø3/4 total length
additional =
× 3.1 (oz/ft)
charge (oz)
Outdoor unit
model
P72
P96
+
P120
P144
P168
*Amount of refrigerant to be
charged for single-module units
• When the piping length from the outdoor unit to the farthest indoor unit is longer than 30.5 m (100 ft)
Amount of
ø3/4 total length
additional =
× 2.80 (oz/ft)
charge (oz)
Outdoor unit
model
P72
P96
+
P120
P144
P168
*Amount of refrigerant to be
charged for single-module units
Amount of factory charged refrigerant
Outdoor unit model Charged amount
6.5kg
P72
9.8kg
P96
9.8kg
P120
10.8kg
P144
10.8kg
P168
MEES23K040
ø5/8 total length ø1/2 total length
+ +
× 2.15 (oz/ft) × 1.29 (oz/ft)
Total capacity of connected
Amount (oz)
indoor units
0 27 or below
0 28 to 54
+
0 55 to 126
0 127 to 144
0 145 to 180
181 to 234
235 to 273
274 to 307
308 to 342
343 to 411
412 to 480
481 or above
ø5/8 total length ø1/2 total length
+ +
× 1.94 (oz/ft) × 1.19 (oz/ft)
Total capacity of connected
Amount (oz)
indoor units
0 27 or below
0 28 to 54
+
0 55 to 126
0 127 to 144
0
145 to 180
181 to 234
235 to 273
274 to 307
308 to 342
343 to 411
412 to 480
481 or above
[230 oz]
[346 oz]
[346 oz]
[381 oz]
[381 oz]
ø3/8 total length ø1/4 total length
+ +
× 0.65 (oz/ft) × 0.26 (oz/ft)
Amount (oz)
71
89
106
124
160
177
212
283
318
353
424
494
ø3/8 total length ø1/4 total length
+ +
× 0.58 (oz/ft) × 0.23 (oz/ft)
Amount (oz)
71
89
106
124
160
177
212
283
318
353
424
494
Y-Series
186