en
37
WT09050X01
・
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)
=
High-pressure pipe
ø22.2 total length
× 0.19 (kg/m)
+
High-pressure pipe
ø19.05 total length
× 0.13 (kg/m)
+
High-pressure pipe
ø15.88 total length
× 0.09 (kg/m)
+
Outdoor unit model
Amount (kg)
+
Amount
(kg/HBC controller)
(E)M200
1.0
2.8
(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
<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
1
: ø15.88; 18 m
A
2
: ø15.88; 5 m
A
3
: ø15.88; 10 m
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
1
)
ø15.88 total length: 5 (A
2
) + 10 (A
3
) + 8 (B) = 23
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
= 9.3 kg (Fractions are rounded up.)
(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)
=
High-pressure pipe
ø7/8 total length
× 2.48 (oz/ft)
+
High-pressure pipe
ø3/4 total length
× 1.73 (oz/ft)
+
High-pressure pipe
ø5/8 total length
× 1.19 (oz/ft)
+
Outdoor unit model
Amount (oz)
+
Amount
(oz/HBC controller)
(E)M200
36
99
(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
