Adding Refrigerant - Toshiba MMY-MAP1006FT8(J)P-E Service Manual

Adding refrigerant

After finishing vacuuming, exchange the vacuum pump with a refrigerant canister and start additional charging of
refrigerant.
Calculation of additional refrigerant charge amount
Refrigerant charge amount at shipment from the factory does not include the refrigerant for pipes at the local site.
For refrigerant to be charged in pipes at the local site, calculate the amount and charge it additionally.
NOTE
If the additional refrigerant amount indicates minus as the result of calculation, use the air conditioner without
additional refrigerant.
Outdoor unit type
Charging amount (kg)
Additional refrigerant
charge amount at local site
Table 1
Liquid pipe dia. (mm)
Additional refrigerant amount / 1 m
liquid pipe (kg/m)
MAP080 MAP100
=
Real length of liquid pipe
6.4
0.025
MAP120 MAP140
11.0
Additional refrigerant
×
charge amount per 1 m
liquid pipe (Table 1)
9.5 12.7
0.055 0.105
− 21 −
MAP160 MAP180
Corrective amount of
refrigerant depending on HP
× +
1.3
of co-operating outdoor units
(Table 2)
15.9 19.1
0.160 0.250
MAP200
22.2
0.350