Toshiba RBC-DTWP101E Manuel D'installation page 9

Branch Kit Set 1:4
Additional Refrigerant Amount
<RAV-SM2244AT8, SM2804AT8 series>
Outdoor unit
Formula for Calculating Additional Refrigerant Amount
Do not remove the refrigerant even if the additional refrigerant amount becomes minus
result as a result of calculations by the following formula and operate the air conditioner as it
is.
Outdoor unit
SM2244 Ø12.7
SM2804 Ø12.7
Outdoor unit
SM2244
SM2804
Indoor unit
Indoor unit
4
1
Diameter of connecting pipe
(liquid side)
1 2, 3
Ø9.5
Ø9.5
Amount of additional refrigerant (g) =
Amount of refrigerant added for main pipe +
amount of refrigerant added for first branch piping +
amount of refrigerant added for second branch piping
α × ( 1 – 28) + β × ( 2 + 3 – 4) + γ × ( 4 + 5 + 6 + 7)
α × ( 1 – 28) + β × ( 2 + 3 – 4) + γ × ( 4 + 5 + 6 + 7)
Indoor unit
5 6
2 3
Amount of additional refrigerant
α
4 to 7
Ø6.4 80
Ø9.5 80
8
Indoor unit
7
per meter (g/m)
β γ
40 20
40 40
EN
EN