13
en
■
(E)M200 to 500YNW (R32 refrigerant)
(1) Units "m" and "kg"
<Formula>
•
When the piping length from the outdoor unit to the farthest HBC is 10 m (32 ft) or
shorter
•
When the piping length from the outdoor unit to the farthest HBC is longer than
10 m (32 ft)
<Example>
Outdoor unit model: PURY-EM300YNW-A1
Main-HBC model: CMB-WM350F-AA
Sub-HBC model: CMB-WM108V-BB x 3
* Refer to the pipe connection examples in [Fig. 2.4.1] (P.2).
A: ø15.88; 18 m
The total length of the high-pressure piping and liquid piping in each case is as fol-
lows:
ø15.88 total length: 18 (A)
Therefore, when the piping length from the outdoor unit to the farthest HBC is
longer than 10 m (32 ft),
(2) Units "ft" and "oz"
<Formula>
•
When the piping length from the outdoor unit to the farthest HBC is 10 m (32 ft) or
shorter
•
When the piping length from the outdoor unit to the farthest HBC is longer than
10 m (32 ft)
<Example>
Outdoor unit model: PURY-EM300YNW-A1
Main-HBC model: CMB-WM350F-AA
Sub-HBC model: CMB-WM108V-BB x 3
* Refer to the pipe connection examples in [Fig. 2.4.1] (P.2).
A: ø5/8; 59 ft
The total length of the high-pressure piping and liquid piping in each case is as fol-
lows:
ø5/8 total length: 59 (A)
Therefore, when the piping length from the outdoor unit to the farthest HBC is
longer than 10 m (32 ft),
Amount of
additional
charge (kg)
=
High-pressure pipe
ø22.2 total length
× 0.23 (kg/m)
+
High-pressure pipe
ø19.05 total length
× 0.16 (kg/m)
+
High-pressure pipe
ø15.88 total length
× 0.11 (kg/m)
+
Outdoor unit model
Amount (kg)
+
HBC model
Amount (kg)
(E)M200
1.0
350F
5.6
(E)M250
1.0
500F
5.6
(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
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)
+
HBC model
Amount (kg)
(E)M200
1.0
350F
5.6
(E)M250
1.0
500F
5.6
(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
Amount of additional charge = (18 × 0.09) + 5.6
= 7.3 kg (Fractions are rounded up.)
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)
+
HBC model
Amount (oz)
(E)M200
36
350F
198
(E)M250
36
500F
198
(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
Amount of
additional
charge (oz)
=
High-pressure pipe
ø7/8 total length
× 2.05 (oz/ft)
+
High-pressure pipe
ø3/4 total length
× 1.36 (oz/ft)
+
High-pressure pipe
ø5/8 total length
× 0.97 (oz/ft)
+
Outdoor unit model
Amount (oz)
+
HBC model
Amount (oz)
(E)M200
36
350F
198
(E)M250
36
500F
198
(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
Amount of additional charge = (59 × 0.97) + 198
= 255.3 oz (Fractions are rounded up.)
01_WT09805X01_en.book 13 ページ ２０２１年１１月１日 月曜日 午前８時４７分
