Amount Of Refrigerant To Be Added - Mitsubishi Electric PUHY-RP200 Service Handbook

[ VIII Test Run Mode ]

3. Amount of refrigerant to be added

The amount of refrigerant that is shown in the table below is factory-charged to the outdoor units.
The amount necessary for extended pipe (field piping) is not included and must be added on site.
Outdoor unit model
Amount of pre-charged refrigerant in
the outdoor unit (kg)
Amount of pre-charged refrigerant in
the outdoor unit [lbs-oz]
(1) Calculation formula
The amount of refrigerant to be added depends on the size and the length of field piping. (unit in m[ft])
Amount of added refrigerant (kg) = (0.39x L
Amount of added refrigerant (oz) = (4.20x L
L : Length of ø22.2 [7/8"] liquid pipe (m)
0
L : Length of ø19.05 [3/4"] liquid pipe (m)
1
L : Length of ø15.88 [5/8"] liquid pipe (m)
2
L : Length of ø12.7 [1/2"] liquid pipe (m)
3
L : Length of ø9.52 [3/8"] liquid pipe (m)
4
L : Length of ø6.35 [1/4"] liquid pipe (m)
5
, ' : Refer to the table below.
Total capacity of
connected indoor units
- 80
81 - 160
161 - 330
331 - 390
391 - 480
481 - 630
631 - 710
711 - 800
801 - 890
891 - 1070
1071 - 1250
Round up the calculation result to the nearest 0.1kg. (Example: 18.04kg to 18.1kg)
Round up the calculation result in increments of 4oz (0.1kg) or round it up to the nearest 1oz.
(Example: 178.21Q\ to 179oz)
HWE10010
P200 P250
6.5 9.0
14-5 19-13
) + (0.29x L ) + (0.2 x L
0 1
' ) + (3.12x L ' ) + (2.15 x L
0 1
L ' : Length of ø22.2 [7/8"] liquid pipe [ft]
0
L ' : Length of ø19.05 [3/4"] liquid pipe [ft]
1
L ' : Length of ø15.88 [5/8"] liquid pipe [ft]
2
L ' : Length of ø12.7 [1/2"] liquid pipe [ft]
3
L ' : Length of ø9.52 [3/8"] liquid pipe [ft]
4
L ' : Length of ø6.35 [1/4"] liquid pipe[ft]
5
(kg) '(oz)
2.0 71
2.5 89
3.0 106
3.5 124
4.5 159
5.0 177
6.0 212
8.0 283
9.0 318
10.0 353
12.0 424
- 118 -
P300 P350
9.0 9.0
19-13 19-13
) + (0.12 x L ) + (0.06 x L
2 3 4
' ) + (1.29 x L ' ) + (0.65 x L
2 3
) + (0.024 x L ) +
5
' ) + (0.26 x L ' ) +
4 5
GB