Mitsubishi Electric CITY MULTI PUHY-P-YKB-A1 Manuel D'installation page 34

The total length of each liquid piping is as follows:
ø12.7 total length: 40 (A)
ø9.52 total length: 10 (B) + 15 (C) + 10 (D) + 10 (a) + 5 (b) + 10 (e) = 60
ø6.35 total length: 10 (c) + 10 (d) = 20
Therefore, when the piping length from the outdoor unit to the farthest indoor unit is longer than 30.5 m (100 ft),
Amount of additional charge = (40 × 0.11) + (60 × 0.054) + (20 × 0.021) + 0 + 3.5
(2) 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
+
・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
+
<Example>
Outdoor unit model: P300
Total capacity of connected indoor units: 361
* Refer to the pipe connection examples in section 9-4 for the pipes marked with the letters below.
A: ø1/2; 131 ft
B: ø3/8; 32 ft
C: ø3/8; 49 ft
D: ø3/8; 32 ft
a: ø3/8; 32 ft
b: ø3/8; 16 ft
c: ø1/4; 32 ft
d: ø1/4; 32 ft
e: ø3/8; 32 ft
KD79S703H01
= 11.6 kg (Fractions are rounded up.)
ø5/8 total length
+
× 2.15 (oz/ft)
Amount (oz)
model
P200 0
P250 0
P300 0
P350 0
P400 0
P450 0
P500 0
ø5/8 total length
+
× 1.94 (oz/ft)
Amount (oz)
model
P200 0
P250 0
P300 0
P350 0
P400 0
P450 0
P500 0
ø1/2 total length
+
× 1.29 (oz/ft)
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
ø1/2 total length
+
× 1.19 (oz/ft)
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
GB-32
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