Mitsubishi Electric PUHY-M200YNW-A1 Service Handbook page 156

[6-3 Evaluating and Adjusting Refrigerant Charge ]
(2) Units "ft" and "oz"
<Formula>
When the piping length from the outdoor unit to the farthest hydro unit is 10 m (32 ft) or shorter
Amount of
ø3/4 total length
additional =
× 3.1 (oz/ft)
charge (oz)
Outdoor unit model
+
* Amount of refrigerant to be charged for
single-module units
When the piping length from the outdoor unit to the farthest hydro unit is longer than 10 m (32 ft)
Amount of
ø3/4 total length
additional =
× 2.59 (oz/ft)
charge (oz)
Outdoor unit model
+
* Amount of refrigerant to be charged for
single-module units
BS_06_E
ø5/8 total length
+
× 2.15 (oz/ft)
Amount (oz)
(E)M200 0
(E)M250 0
(E)M300 0
(E)M350 0
(E)M400 0
(E)M450 0
(E)M500 0
ø5/8 total length
+
× 1.73 (oz/ft)
Amount (oz)
(E)M200 0
(E)M250 0
(E)M300 0
(E)M350 0
(E)M400 0
(E)M450 0
(E)M500 0
ø1/2 total length ø3/8 total length
+ +
× 1.29 (oz/ft) × 0.65 (oz/ft)
Hydro unit model
WM250
+
WM350
WM500
ø1/2 total length ø3/8 total length
+ +
× 1.08 (oz/ft) × 0.54 (oz/ft)
Hydro unit model
WM250
+
WM350
WM500
ø1/4 total length
+
× 0.26 (oz/ft)
Amount (oz)
106
106
106
ø1/4 total length
+
× 0.21 (oz/ft)
Amount (oz)
106
106
106
chapter 6 -
7