Mitsubishi Electric CITY MULTI PQHY-P-TLMU-A1 Manual De Instalación página 30

<Additional Charge>
Piping length from outdoor unit to the farthest indoor unit
Use table [A].
Piping length from outdoor unit to the farthest indoor unit > 30.5 m [100 ft]:
Use table [B].
Additional Liquid pipe size
refrigerant Total length of
charge ø19.05 mm [3/4 in]
+
=
[A] [A]
[B] [B]
Liquid pipe size
Total length of
ø9.52 mm [3/8 in]
+
+
[A]
[B]
Additional charge
Heat source unit model
+
P216
Single
P240
<Example>
Indoor 1: 36 A: ø12.7 [1/2 in] 40 m [131 ft] a: ø9.52 [3/8 in] 10 m [32 ft]
2: 30 B: ø9.52 [3/8 in] 10 m [32 ft] b: ø9.52 [3/8 in]
3: 15 C: ø9.52 [3/8 in] 15 m [49 ft] c: ø6.35 [1/4 in] 10 m [32 ft]
4: 12 D: ø9.52 [3/8 in] 10 m [32 ft] d: ø6.35 [1/4 in] 10 m [32 ft]
5: 24
The total length of each liquid line is as follows:
ø12.7 [1/2 in]: A = 40 m [131 ft]
ø9.52 [3/8 in]: B + C + D + a + b + e = 10 [32] + 15 [49] + 10 [32] + 10 [32] + 5 [16]
+ 10 [32] = 60 m [193 ft]
ø6.35 [1/4 in]: c + d = 10 [32] + 10 [32] = 20 m [64 ft]
Therefore, additional refrigerant charge
= 40m [131 ft] × 0.11 kg/m [1.19 oz/ft] + 60 [193 ft] × 0.054 kg/m [0.59 oz/ft]
+ 20 [64 ft] × 0.021 kg/m [0.23 oz/ft] + 3.0 kg [106 oz] = 11.1 kg [392 oz]
Total capacity of connecting indoor units
Models ~ 27
Models 28 ~ 54
Models 55 ~ 126
Models 127 ~ 144
Models 145 ~ 180
Models 181 ~ 234
Models 235 ~ 273
Models 274 ~ 307
Models 308 ~ 342
Models 343 ~ 411
Models 412 ~ 480
Models 481 ~
* When connecting PLFY-P08NBMU-E2, add 0.3 kg of refrigerant per indoor unit.
* When connecting PLFY-EP08NEMU-E, add 0.3 kg of refrigerant per indoor unit.
30
30.5 m [100 ft]:
Liquid pipe size Liquid pipe size
Total length of Total length of
ø15.88 mm [5/8 in] ø12.7 mm [1/2 in]
+
[A] [A]
[B] [B]
Liquid pipe size
Total length of
ø6.35 mm [1/4 in]
[A]
[B]
Charged amount
+
1.0 kg [36 oz]
1.0 kg [36 oz]
At the
5 m [16 ft]
conditions
below:
e: ø9.52 [3/8 in] 10 m [32 ft]
2.0 kg [71 oz]
2.5 kg [89 oz]
3.0 kg [106 oz]
3.5 kg [124 oz]
4.5 kg [159 oz]
5.0 kg [177 oz]
6.0 kg [212 oz]
8.0 kg [283 oz]
9.0 kg [318 oz]
10.0 kg [353 oz]
12.0 kg [424 oz]
14.0 kg [494 oz]
<Additional charge>
Piping length from outdoor unit to the farthest indoor unit
Use table [A].
Piping length from outdoor unit to the farthest indoor unit > 30.5 m [100 ft]:
Use table [B].
High-pressure
Additional
pipe size
refrigerant
Total length of
charge
ø28.58 mm [1-1/8 in]
+
=
[A] [A]
[B] [B]
High-pressure
pipe size
Total length of
ø15.88 mm [5/8 in]
+
+
[A]
[B]
Liquid Piping Size
Total length of
ø9.52 mm [3/8 in]
+
+
[A]
[B]
Additional charge
Heat source unit model
+
P216
Single
P240
BC controller
+ +
3.0 kg [106 oz]
BC controller
BC controller
+
1
1.0 kg [36 oz]
2
2.0 kg [71 oz]
Total Capacity of
Connected Indoor Units
Models ~ 27
Models 28 ~ 54
Models 55 ~ 126
+ Models 127 ~ 144
Models 145 ~ 180
Models 181 ~ 234
Models 235 ~ 273
Models 274 ~ 307
Models 308 ~ 342
Models 343 ~ 411
Models 412 ~
* When connecting PLFY-P08NBMU-E2, add 0.3 kg of refrigerant per indoor unit.
* When connecting PLFY-EP08NEMU-E, add 0.3 kg of refrigerant per indoor unit.
<Example>
Indoor 1: 30 A: ø28.58 [1-1/8] 40 m [131 ft] a: ø9.52 [3/8] 10 m [32 ft]
2: 96 B: ø9.52 [3/8] 10 m [32 ft] b: ø9.52 [3/8]
3: 12 C: ø9.52 [3/8] 20 m [64 ft] c: ø6.35 [1/4]
4: 15 D: ø9.52 [3/8] 5 m [16 ft]
5: 12 E: ø9.52 [3/8] 5 m [16 ft]
6: 24 F: ø22.2 [7/8] 3 m [9 ft]
G: ø19.05 [3/4] 1 m [3 ft]
The total length of each liquid line is as follows:
ø28.58 [1-1/8 in]: A = 40 m [131 ft]
ø22.2 [7/8 in]: F = 3 m [9 ft]
ø19.05 [3/4 in]: G = 1 m [3 ft]
ø9.52 [3/8 in]: C + D + E + a + b + f = 50 m [164 ft]
ø6.35 [1/4 in]: c + d + e = 20 m [64 ft]
Therefore, additional refrigerant charge
= 40 m [131 ft] 0.33 kg/m [3.55 oz/ft] + 3 m [9 ft]
+ 1 m [3 ft] 0.14 kg/m [1.51 oz/ft] + 50m [164ft]
+ 20 m [64 ft] 0.021 kg/m [0.23 oz/ft] + 3.0 kg [106 oz] + 2.0 kg [71 oz]
+ 5.0 kg [177 oz]
= 27.1 kg [956 oz]
30.5 m [100 ft]:
High-pressure High-pressure
pipe size pipe size
Total length of Total length of
ø22.2 mm [7/8 in] ø19.05 mm [3/4 in]
+
[A] [A]
[B] [B]
Liquid Piping Size Liquid Piping Size
Total length of Total length of
ø15.88 mm [5/8 in] ø12.7 mm [1/2 in]
+
[A] [A]
[B] [B]
Liquid Piping Size
Total length of
ø6.35 mm [1/4 in]
[A]
[B]
Charged amount
1.0kg [36 oz]
1.0kg [36 oz]
BC controller
HA-type
2.0 kg [71 oz]
Amount
2.0 kg [71 oz]
2.5 kg [89 oz]
3.0 kg [106 oz]
3.5 kg [124 oz]
4.5 kg [159 oz]
5.0 kg [177 oz]
6.0 kg [212 oz]
8.0 kg [283 oz]
9.0 kg [318 oz]
10.0 kg [353 oz]
12.0 kg [424 oz]
5 m [16 ft]
5 m [16 ft] At the
d: ø6.35 [1/4] 10 m [32 ft]
conditions
e: ø6.35 [1/4] 5 m [16 ft]
below:
f: ø9.52 [3/8] 5 m [16 ft]
0.21 kg/m [2.26 oz/ft]
0.054 kg/m [0.59 oz/ft]