Mitsubishi Electric City Multi PURY-P72TNU-A-BS Manuel D'installation page 31

* In the case all connected indoor unit models are Case 1 or Case 2, do NOT add the refrigerant listed in table Ⓐ. Instead, add the following
amount of refrigerant.
Case 1: PLFY-EP06/18/36NEMU-E**
→ Add 0.67 kg per PLFY-EP06/18/36NEMU-E**.
Case 2: PEFY-P06/24/36NMAU-E**
→ Add 0.55 kg per PEFY-P06/24/36NMAU-E**.
・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 ø28.58
additional charge = total length
(kg) × 0.33 (kg/m)
Liquid pipe ø15.88 total
+ length
× 0.18 (kg/m)
Main or sub BC controller
+
Total capacity of
outdoor units
Single
+
Combination
* When connecting PLFY-EP06NEMU-E**, PLFY-EP18NEMU-E**, or PLFY-EP36NEMU-E**, add 0.67 kg of refrigerant per indoor unit.
* When connecting PEFY-P06NMAU-E**, PEFY-P24NMAU-E**, or PEFY-P36NMAU-E**, add 0.55 kg of refrigerant per indoor unit.
<Example>
Outdoor unit 1 model: P120
Outdoor unit 2 model: P120
BC controller (Main) model: CMB-P108NU-JA1
BC controller (Sub) model: CMB-P104NU-KB1 × 4 units
Total capacity of connected indoor units: 206
* Refer to the pipe connection examples in section 9-4 for the pipes marked with the letters below.
A: ø28.58; 40 m
B: ø9.52; 10 m
C: ø9.52; 5 m
D: ø9.52; 5 m
E: ø9.52; 5 m
F: ø9.52; 5 m
G: ø9.52; 5 m
H: ø9.52; 5 m
I: ø9.52; 5 m
A : ø19.05; 3 m
1
A : ø19.05; 1 m
2
a: ø9.52; 10 m
b: ø9.52; 5 m
c: ø6.35; 5 m
d: ø6.35; 10 m
e: ø6.35; 5 m
f: ø9.52; 5 m
WT09106X03
High-pressure pipe ø22.2
+ total length
× 0.21 (kg/m)
Liquid pipe ø12.7 total
+ length
× 0.11 (kg/m)
Amount (kg/unit)
J-type 1.5
JA-type 3.0
KA-type 4.7
KB-type 0.4
Amount (kg)
(to be added for outdoor unit)
72 0
96 0
120 0
144 0
168 0
192 4.4
216 4.4
240 4.4
192 0
216 0
240 0
264 0
288 0
312 0
336 0
384 8.8
432 8.8
High-pressure pipe ø19.05 High-pressure pipe ø15.88
+ total length + total length
× 0.14 (kg/m) × 0.1 (kg/m)
Liquid pipe ø9.52 total Liquid pipe ø6.35 total
+ length + length
× 0.054 (kg/m) × 0.021 (kg/m)
Total capacity of connected
indoor units (to be added for indoor unit)
27 or below
28 to 54
55 to 126
127 to 144
145 to 180
+
181 to 234
235 to 273
274 to 307
308 to 342
343 to 411
412 to 450
451 or above
GB-29
Amount (kg)
2.0
2.5
3.0
3.5
4.5
5.0
6.0
8.0
9.0
10.0
12.0
14.0