Mitsubishi Electric CITY MULTI PURY-P-ZKMU-A, Руководство по установке

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GB
GB-25
WT07828X01
・ 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
(kg)
=
High-pressure pipe ø28.58
total length × 0.33 (kg/m)
+
High-pressure pipe ø22.2
total length × 0.21 (kg/m)
+
High-pressure pipe ø19.05
total length × 0.14 (kg/m)
+
High-pressure pipe ø15.88
total length × 0.1 (kg/m)
+
Liquid pipe ø15.88 total
length × 0.18 (kg/m)
+
Liquid pipe ø12.7 total
length × 0.11 (kg/m)
+
Liquid pipe ø9.52 total
length × 0.054 (kg/m)
+
Liquid pipe ø6.35 total
length × 0.021 (kg/m)
+
Total capacity of outdoor
units
Amount (kg)
(to be added for standard or main BC
controller)
+
Main BC controller Amount (kg)
P72 3.0 HA-type 2.0
P96 4.5
P120 4.5
P144–P288 6.0
+
Number of sub BC
controllers
Amount (kg)
(to be added for
sub BC controller)
+
Total capacity of
connected indoor units
Amount (kg)
(to be added for
indoor unit)
+
Outdoor unit model
Amount (kg)
(to be added for
outdoor unit)
1 1.0 27 or below 2.0
Single
P72 to P96 0
2 2.0 28 to 54 2.5 P120 to P144 5.5
55 to 126 3.0
Combination
P168 to P192 0
127 to 144 3.5 P216 5.5
145 to 180 4.5 P240 to P288 11.0
181 to 234 5.0
235 to 273 6.0
274 to 307 8.0
308 to 342 9.0
343 to 411 10.0
412 to 450 12.0
451 or above 14.0
* When connecting PLFY-P08NBMU-E2, add 0.3 kg of refrigerant per indoor unit.
<Example>
Outdoor unit 1 model: P120
Outdoor unit 2 model: P120
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; 20 m
D: ø9.52; 5 m
E: ø9.52; 5 m
A
1
: ø19.05; 3 m
A
2
: ø19.05; 1 m
a: ø9.52; 10 m
b: ø9.52; 5 m
c: ø6.35; 5 m
d: ø6.35; 10 m
e: ø9.52; 5 m
f: 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
1
) + 1 (A
2
) = 4
ø9.52 total length: 10 (B) + 20 (C) + 5 (D) + 5 (E) + 10 (a) + 5 (b) + 5 (e) + 5 (f) = 65
ø6.35 total length: 5 (c) + 10 (d) = 15
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) + (65 × 0.054) + (15 × 0.021) + 6 + 2 + 5 + 11
= 41.2 kg (Fractions are rounded up.)