Mitsubishi Electric PURY-P72TYJMU-A Service Handbook page 181

[ 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) = (0.36 x L
Amount of added refrigerant (oz) = (3.88 x L
L : Length of ø28.58[1-1/8"] high pressure pipe (m)
1
L : Length of ø22.2[7/8"] high pressure pipe (m)
2
L : Length of ø19.05[3/4"] high pressure pipe (m)
3
L : Length of ø15.88[5/8"] high pressure pipe (m)
4
L : Length of ø15.88[5/8"] liquid pipe (m)
5
L : Length of ø12.7[1/2"] liquid pipe (m)
6
L : Length of ø9.52[3/8"] liquid pipe (m)
7
L : Length of ø6.35[1/4"] liquid pipe (m)
8
, , , ,
1 2 3 4 1
Amount for the BC
controllers (main/sub)
Outdoor unit total
index
(kg)
1
P72 model 3.0
P96 model
4.5
P120 model
P144 model
P168 model 7.5
P192 model
P216 model
9.0
P240 model
P264 model
P288 model
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: 78.21oz to 79oz)
HWE0913A
P72
10.5
23-2
) + (0.23 x L
1
+ (0.12 x L ) + (0.06 x L ) + (0.024 x L
6 7
' ) + (2.48 x L
1
+ (1.30 x L ' ) + (0.65 x L ' ) + (0.26 x L
6 7
' , ' , ' : Refer to the table below.
3 4
BC controller (main)
' (oz)
1
106 HA type
1
159
BC controller (sub)
265
Total number of BC
1
318
2
P96 P120
11.8 11.8
26-1 26-1
) + (0.16 x L ) + (0.11 x L
2 3
) + + + +
8 1 2 3
' ) + (1.73 x L ' ) + (1.19 x L
2 3
' ) + ' + ' +
8 1 2
L ' : Length of ø28.58[1-1/8"] high pressure pipe [ft]
1
L ' : Length of ø22.2[7/8"] high pressure pipe [ft]
2
L ' : Length of ø19.05[3/4"] high pressure pipe [ft]
3
L ' : Length of ø15.88[5/8"] high pressure pipe [ft]
4
L ' : Length of ø15.88[5/8"] liquid pipe [ft]
5
L ' : Length of ø12.7[1/2"] liquid pipe [ft]
6
L ' : Length of ø9.52[3/8"] liquid pipe [ft]
7
L ' : Length of ø6.35[1/4"] liquid pipe [ft]
8
Total capacity of
connected indoor
(kg) ' (oz)
2 2
2.0 71
(kg) ' (oz)
3 3
1.0 35
2.0 71
- 172 -
P144
11.8
26-1
)+ (0.2 x L )
4 5
4
' )+ (2.16 x L ' )
4 5
' + '
3 4
Amount for the Indoor
unit
units
(kg)
4
- 27 2.0
28 - 54 2.5
55 - 126 3.0 106
127 - 144 3.5 124
145 - 180 4.5 159
181 - 234 5.0 177
235 - 273 6.0 212
274 - 307 8.0 283
308 - 342 9.0 318
343 - 411 10.0 353
412 - 12.0 424
' (oz)
4
71
89
GB