Samsung UH070CAV1 Installation Manual page 19

How to Calculate the Quantity of Adding Refrigerant
If you have used more than "P", add "Q" of refrigerant for extra meter.
(For maximum piping length and height, refer to page 13)
The quantity of additional refrigerant is variable according to the installation
situation. Thus, make sure the outdoor unit situation before adding
refrigerant. This operation can only be performed by a qualified refrigeration
specialist.
Model
UH070CAV1
UH105CAV
UH140CAV
i.e. 1 indoor unit
Piping length
"a"
16.4ft(5.0m)
24.6 ft(7.5m)
31.17ft(9.5m)
"Q"(R410A)
0.32oz/ft (30g/m)
0.43oz/ft (40g/m)
0.43 oz/ft (40g/m)
Additional charging amount
UH105CAV/UH140CAV
UH070CAV1
-
2.65oz(75g)
4.76oz(135g)
"P"
16.4ft(5.0m)
24.6 ft(7.5m)
24.6 ft(7.5m)
-
-
2.82 oz(80g)
19
E-