Mitsubishi CITY MULTI PURY-EM-YNW-A1(-BS) Series Installation Manual page 39

・When the piping length from the outdoor unit to the farthest HBC controller is longer than 10 m (32 ft)
Amount of additional
=
charge (kg)
+
<Example>
Outdoor unit model: PURY-EM300YNW-A1
Main HBC controller 1 model: CMB-WM108V-AA
Main HBC controller 2 model: CMB-WM108V-AA
Sub HBC controller model: CMB-WM108V-AB
* Refer to the pipe connection examples in section 9-4 for the pipes marked with the letters below.
A : ø15.88; 18 m
1
A : ø15.88; 5 m
2
A : ø15.88; 10 m
3
B: ø15.88; 8 m
The total length of the high-pressure piping and liquid piping in each case is as follows:
ø15.88 total length: 18 (A
ø15.88 total length: 5 (A
Therefore, when the piping length from the outdoor unit to the farthest HBC controller is longer than 10 m (32 ft),
Amount of additional charge = (41 × 0.09) + 2.8 × 2
(2) Units "ft" and "oz"
<Formula>
・When the piping length from the outdoor unit to the farthest HBC controller is 10 m (32 ft) or shorter
Amount of additional
=
charge (oz)
+
WT09050X01
High-pressure pipe High-pressure pipe
ø22.2 total length + ø19.05 total length
× 0.19 (kg/m) × 0.13 (kg/m)
Outdoor unit model Amount (kg)
(E)M200 1.0
(E)M250 1.0
(E)M300 0
(E)M350 0
(E)M400 0
(E)M450 0
(E)M500 0
* Amount of refrigerant to be charged for
single-module units
)
1
) + 10 (A ) + 8 (B) = 23
2 3
= 9.3 kg (Fractions are rounded up.)
High-pressure pipe High-pressure pipe
ø7/8 total length + ø3/4 total length
× 2.48 (oz/ft) × 1.73 (oz/ft)
Outdoor unit model Amount (oz)
(E)M200 36
(E)M250 36
(E)M300 0
(E)M350 0
(E)M400 0
(E)M450 0
(E)M500 0
* Amount of refrigerant to be charged for
single-module units
High-pressure pipe
+ ø15.88 total length
× 0.09 (kg/m)
Amount
(kg/HBC controller)
+
2.8
High-pressure pipe
+ ø5/8 total length
× 1.19 (oz/ft)
Amount
(oz/HBC controller)
+
99
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