Mitsubishi Electric CITY MULTI PURY-P-YNW-A Manual De Instalación página 37

9-9. Additional refrigerant charge
Charge refrigerant in a liquid state.
- Charging refrigerant in the gaseous state will change the composition of the refrigerant and lead
to a performance drop.
Do not use a charging cylinder when charging refrigerant.
- The use of a charging cylinder may change the composition of the refrigerant and lead to a
performance drop.
The table below summarizes the factory-charged amount of refrigerant, the maximum amount of refrigerant to be
added on site, and the maximum total amount of refrigerant in the system.
Factory-
Unit model charged
amount
P200YNW 5.2 (184)
P250YNW 5.2 (184)
P300YNW 5.2 (184)
P350YNW 8.0 (283)
P400YNW 8.0 (283)
P400YSNW 10.4 (367)
P450YNW 10.8 (381)
P450YSNW 10.4 (367)
P500YNW 10.8 (381)
P500YSNW 10.4 (367)
P550YNW 10.8 (381)
P550YSNW 10.4 (367)
P600YSNW 10.4 (367)
P650YSNW 13.2 (466)
P700YSNW 16.0 (565)
P750YSNW 16.0 (565)
P800YSNW 16.0 (565)
P850YSNW 18.8 (664)
P900YSNW 21.6 (762)
P950YSNW 21.6 (762)
P1000YSNW 21.6 (762)
P1050YSNW 21.6 (762)
P1100YSNW 21.6 (762)
Both refrigerant overcharge and undercharge will cause problems. Charge the system with the proper amount of
refrigerant.
Record the added refrigerant amount on the label attached to the control box panel for future servicing.
9-9-1. Calculation of the amount of additional refrigerant
・The amount of refrigerant to be added depends on the size and the total length of the high-pressure piping and
liquid piping.
・Calculate the amount of refrigerant to be charged according to the formula below.
・Round up the calculation result to the nearest 0.1 kg (0.1 oz).
・Refer to the HBC controller Installation Manual for the additional amount of refrigerant for a Hybrid City Multi
system.
・The refrigerant does not need to be added for the indoor units in a Hybrid City Multi system.
WT08432X01
Maximum Maximum total
amount to be amount in the
added on site system
31.8 (1122) 37.0 (1306)
37.8 (1333) 43.0 (1517)
37.8 (1333) 43.0 (1517)
41.3 (1457) 49.3 (1740)
47.3 (1668) 55.3 (1951)
60.6 (2138) 71.0 (2505)
44.5 (1570) 55.3 (1951)
60.6 (2138) 71.0 (2505)
45.2 (1595) 56.0 (1976)
60.6 (2138) 71.0 (2505)
45.2 (1595) 56.0 (1976)
60.6 (2138) 71.0 (2505)
60.6 (2138) 71.0 (2505)
65.6 (2314) 78.8 (2780)
79.6 (2808) 95.6 (3373)
79.6 (2808) 95.6 (3373)
83.0 (2928) 99.0 (3493)
80.2 (2829) 99.0 (3493)
77.4 (2731) 99.0 (3493)
77.4 (2731) 99.0 (3493)
77.4 (2731) 99.0 (3493)
77.4 (2731) 99.0 (3493)
77.4 (2731) 99.0 (3493)
GB-35
Factory-
Unit model charged
amount
EP200YNW 5.2 (184)
EP250YNW 5.2 (184)
EP300YNW 5.2 (184)
EP350YNW 8.0 (283)
EP400YNW 8.0 (283)
EP400YSNW 10.4 (367)
EP450YNW 10.8 (381)
EP450YSNW 10.4 (367)
EP500YNW 10.8 (381)
EP500YSNW 10.4 (367)
EP550YNW 10.8 (381)
EP550YSNW 10.4 (367)
EP600YSNW 10.4 (367)
EP650YSNW 13.2 (466)
EP700YSNW 16.0 (565)
EP750YSNW 16.0 (565)
EP800YSNW 16.0 (565)
EP850YSNW 18.8 (664)
EP900YSNW 21.6 (762)
EP950YSNW 21.6 (762)
EP1000YSNW 21.6 (762)
EP1050YSNW 21.6 (762)
EP1100YSNW 21.6 (762)
[kg (oz)]
Maximum Maximum total
amount to be amount in the
added on site system
28.3 (998) 33.5 (1182)
34.3 (1210) 39.5 (1394)
34.3 (1210) 39.5 (1394)
39.0 (1375) 47.0 (1658)
39.0 (1375) 47.0 (1658)
53.6 (1891) 64.0 (2258)
44.7 (1577) 55.5 (1958)
53.6 (1891) 64.0 (2258)
45.2 (1595) 56.0 (1976)
53.6 (1891) 64.0 (2258)
45.2 (1595) 56.0 (1976)
53.6 (1891) 64.0 (2258)
53.6 (1891) 64.0 (2258)
59.8 (2110) 73.0 (2576)
78.0 (2751) 94.0 (3316)
80.5 (2839) 96.5 (3404)
83.0 (2928) 99.0 (3493)
80.2 (2829) 99.0 (3493)
77.4 (2731) 99.0 (3493)
77.4 (2731) 99.0 (3493)
77.4 (2731) 99.0 (3493)
77.4 (2731) 99.0 (3493)
77.4 (2731) 99.0 (3493)