Additional Refrigerant Amount Calculation Method; Recovery Of Refrigerant - Samsung Electronics DVM Series Technical Manual

. Installation
9. Charge/recovery of refrigerant

9-2. Additional refrigerant amount calculation method

(1) The amount of refrigerant filled in the outdoor when the product is
delivered (on the base of piping 30ft.)
(2) Additional amount of refrigerant as per the pipe diameter and length
(liquid pipe based)
Pipe diameter (inch)
Additional amount of
refrigerant(oz/ft.)
Example of additional refrigerant amount calculation (In case of 7.0HP)
A
1/2 - 1 -
60ft.
Additional amount of refrigerant =(ø1/2 liquid pipe lengthX1.3oz/ft.)+(ø3/8 liquid pipe lengthX0.9oz/ft.)+
α
1) The value of
5.0HP
0g
1/4
0.5
Additional amount of refrigerant = additional amount of refrigerant as per the total pipe length
Arrangement: liquid pipe diameter -gas pipe diameter - pipe length
3/8 - 3/4 - 3/8 - 3/4 - 3/8 - 5/8 -
15ft. 15ft. 15ft.
B C
3/8 - 5/8 - 1/4 - 1/2 -
15ft. 15ft.
2
1
7200W 4000W 3200W
(ø1/4 liquid pipe lengthX0.5oz/ft.)
=(60ft.X1.3oz/ft.)+(75ft.X0.9oz/ft.)+(75ft.X0.5oz/ft.)
=183oz-α 1)
6.0HP
1000g
46
1/2( 040 ~
3/8
070 )
1.3
0.9
3/8 - 5/8 -
15ft.
D E
1/4 - 1/2 - 1/4 - 1/2 -
15ft. 15ft.
3 4 5
3200W 2000W
7200W
10400W
14400W
21600W
7.0/7.5HP
0g
1/2( 08 ~
100 )
1.5
1/4 - 1/2 - 1/4 - 1/2 -
15ft. 15ft.
6
2000W
8.0/10.0HP
1100g