Mitsubishi Electric City Multi PURY-P72TNU-A-BS Manuel D'installation page 32

g: ø9.52; 5 m
h: ø9.52; 5 m
The total length of the high-pressure piping and liquid piping in each case is as follows:
ø28.58 total length: 40 (A)
ø19.05 total length: 3 (A
ø9.52 total length: 10 (B) + 5 (C) + 5 (D) + 5 (E) + 5 (F) + 5 (G) + 5 (H) + 5 (I) + 10 (a) + 5 (b) + 5 (f) + 5 (g)
+ 5 (h) = 75
ø6.35 total length: 5 (c) + 10 (d) + 5 (e) = 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 × 0.33) + (4 × 0.14) + (75 × 0.054) + (20 × 0.021) + 3.0 + (0.4 × 4) + 5
(2) Units "ft" and "oz" (In an R2 system)
<Formula>
・When the piping length from the outdoor unit to the farthest indoor unit is 30.5 m (100 ft) or shorter
Amount of High-pressure pipe ø1-1/8
additional charge = total length
(oz) × 3.88 (oz/ft)
Liquid pipe ø5/8 total
+ length
× 2.16 (oz/ft)
Main or sub BC controller
+
Total capacity of
Single
+
Combination
* 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 24 oz per PLFY-EP06/18/36NEMU-E**.
Case 2: PEFY-P06/24/36NMAU-E**
→ Add 20 oz per PEFY-P06/24/36NMAU-E**.
WT09106X03
) + 1 (A ) = 4
1 2
= 27.9 kg (Fractions are rounded up.)
High-pressure pipe ø7/8
+ total length
× 2.48 (oz/ft)
Liquid pipe ø1/2 total
+ length
× 1.30 (oz/ft)
Amount (oz/unit)
J-type 53
JA-type 106
KA-type 166
KB-type 15
Amount (oz)
outdoor units (to be added for outdoor unit)
72 0
96 0
120 0
144 0
168 0
192 156
216 156
240 156
192 0
216 0
240 0
264 0
288 0
312 0
336 0
384 311
432 311
High-pressure pipe ø3/4
+ total length +
× 1.73 (oz/ft)
Liquid pipe ø3/8 total
+ length +
× 0.65 (oz/ft)
Total capacity of connected
indoor units
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
Ⓑ
Total capacity of
outdoor units
72
96
120
144
Single
168
192
216
240
+
192
216
240
264
Combination 288
312
336
384
432
GB-30
High-pressure pipe ø5/8
total length
× 1.19 (oz/ft)
Liquid pipe ø1/4 total
length
× 0.26 (oz/ft)
Amount (oz)
(to be added for indoor unit)
71
89
106
124
159
177
212
283
318
353
424
494
Amount (oz)
53
53
106
89
142
124
142
159
142
159
177
89
53
71
71
0
0