Mitsubishi Electric CITY MULTI Data Book page 370

1. Piping Design
Amount of factory charged refrigerant
Heat source unit
Charged amount
Model
P72
P96 5.0 kg
P120
P144
P168 6.0 kg
P192
P216
11.7 kg
P240
Limitation of the amount of refrigerant to be charged
The above calculation result of the amount of refrigerant to be charged must become below the value in the table below.
If the amount of refrigerant exceeds the value in the below table, please redesign the system.
Total index of the heat source units
Factory charged
Charged on site
Total for system
Maximum refrigerant charge
Factory charged
Charged on site
Total for system
Total index of the heat source units
Factory charged
Charged on site
Total for system
Maximum refrigerant charge
Factory charged
Charged on site
Total for system
MEES19K187
Sample calculation
A : ø28.58 [1-1/8 "] 40m [131ft.]
B : ø9.52 [3/8 "] 10m [32ft.]
C :
ø12.70 [1/2 "] 10m [32ft.]
D : ø9.52 [3/8 "] 5m [16ft.]
E : ø9.52 [3/8 "] 5m [16ft.]
F : ø22.20 [7/8 "] 2m [6ft.]
G : ø22.20 [7/8 "] 1m [4ft.]
Total length for each pipe size :
Therefore, additional refrigerant charge
or
Therefore, additional refrigerant charge
P72 P96 P120 P144
ZLMU ZLMU ZLMU ZLMU
5.0kg 5.0kg 5.0kg 6.0kg
28.0kg 30.0kg 31.0kg 46.0kg
33.0kg 35.0kg 36.0kg 52.0kg
11 lbs 11 lbs 11 lbs 13 lbs
1 oz 1 oz 1 oz 4 oz
61 lbs 66 lbs 68 lbs 101 lbs
12 oz 3 oz 6 oz 7 oz
72 lbs 77 lbs 79 lbs 114 lbs
13 oz 3 oz 6 oz 11 oz
P192 P216 P240 P288
ZSLMU ZSLMU ZSLMU ZSLMU
10.0kg 10.0kg 10.0kg 12.0kg
51.0kg 52.0kg 54.0kg 70.0kg
61.0kg 62.0kg 64.0kg 82.0kg
22 lbs 22 lbs 22 lbs 26 lbs
1 oz 1 oz 1 oz 8 oz
112 lbs 114 lbs 119 lbs 154 lbs
7 oz 11 oz 1 oz 6 oz
134 lbs 136 lbs 141 lbs 180 lbs
8 oz 11 oz 2 oz 13 oz
Indoor
1 : P18 a : ø6.35 [1/4 "]
2 : P96 b : ø9.52 [3/8 "]
3 : P06 c : ø6.35 [1/4 "]
4 : P08 d : ø6.35 [1/4 "]
5 : P54 e : ø9.52 [3/8 "]
6 : P72 f : ø9.52 [3/8 "]
ø28.58 A = 40m [131ft.]
ø22.20 F+G = 2+1 = 3m [10ft.]
ø12.70 C = 10m [32ft.]
ø9.52 B+D+E+b+e+f = 36m [116ft.]
ø6.35 a+c+d =10m [32ft.]
= 40×0.33+3×0.21+10×0.11+36×0.054+10×0.021+3.0+2.0+8.0
(kg) = 30.08kg
= 30.1kg
= 131×3.55+10×2.26+32×1.19+116×0.59+32×0.23+106+71+283
(oz) = 1061.5oz
= 1062oz
P168 P192 P144
ZLMU ZLMU ZSLMU
6.0kg 6.0kg 10.0kg
47.0kg 48.0kg 49.0kg
53.0kg 54.0kg 59.0kg
13 lbs 13 lbs 22 lbs
4 oz 4 oz 1 oz
103 lbs 105 lbs 108 lbs
10 oz 14 oz 1 oz
116 lbs 119 lbs 130 lbs
14 oz 1 oz 2 oz
P312 P336
ZSLMU ZSLMU
12.0kg 12.0kg
70.0kg 73.0kg
82.0kg 85.0kg
26 lbs 26 lbs
8 oz 8 oz
154 lbs 160 lbs
6 oz 15 oz
180 lbs 187 lbs
13 oz 7 oz
5m [16ft.]
3m [10ft.]
2m [6ft.]
3m [10ft.]
3m [10ft.]
10m [32ft.]
P168
ZSLMU
10.0kg
50.0kg
60.0kg
22 lbs
1 oz
110 lbs
4 oz
132 lbs
5 oz
359