Mitsubishi Electric PUHY-P168, Руководство по обслуживанию

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[
VIII
Test Run Mode ]
(2) Example
(3) Sample calculation
A
B
b c d
a
Outdoor unit
Main BC controller
Sub BC controller
Maximum of 3 units per port
Total capacity of P54 or below
(All units connected to the same port
must be in the same operating mode.)
(Model above P55
and below P96)
Indoor
Indoor Indoor
40 m [131 ft] or less
110 m [360 ft] or less
H'= 40 m [131 ft] or less (Outdoor unit below indoor unit) H= 50 m [164 ft] or less (Outdoor unit above indoor unit)
h
1
= 15 m [49 ft](10 [32ft]) or less
h
2
= 15 m [49 ft]
(10m [32 ft]) or less
Branch joint (For use with the Y series)
CMY-Y-102S-G
1
2 3
4
5
A
Note : "Total sum of downstream unit model numbers"
in the table is the sum of the model numbers of
the units after point A in the figure.
To downstream units
(Main pipe)
Indoor
Indoor
e
Indoor unit 1: 96 model
Outdoor unit: 168 model
2: 24 model
3: 18 model
4: 48 model
5: 06 model
A: 22.2 [7/8"] 40 m [131 ft]
19.05 [3/4"] : A = 40 m [130 ft]
9.52 [3/8"] : B + a + b + d = 35 m [112 ft]
6.35 [1/4"] : c + e = 20 m[65 ft]
B: 9.52 [3/8"] 10 m [32 ft]
a: 9.52 [3/8"] 10 m [32 ft]
b: 9.52 [3/8"] 5 m [16 ft]
c: 6.35 [1/4"] 10 m [32 ft]
d: 9.52 [3/8"] 10 m [32 ft]
The aggregate length of each liquid pipe type.
When
e: 6.35 [1/4"] 10 m [32 ft]
According to the above formula
The calculation result would be 15.78, and it is rounded up to the nearest 0.1.
Amount of refrigerant to be charged (kg) = (0.23 X 40) + (0.06 X 35) + (0.024 X 20) + 3 + 1 = 15.78kg
Amount of refrigerant to be charged = 15.8kg
The final result will be as follows:
The final result will be as follows:
Amount of refrigerant to be charged (oz) = (2.47 X 130) + (0.65 X 112) + (0.26 X 65) + 106 + 36 = 552.8oz
Amount of refrigerant to be charged = 556oz or 553oz
The calculation result would be 552.8oz, and it is rounded up to the nearest 1 oz or 4 oz.