Publicité
Les langues disponibles
Les langues disponibles
6. Startup and Commissioning
6.2 Oil Charging
When the connecting piping between the In-Row Cooling Unit and the condenser exceeds 33 ft. (10 m), add more refrigerant.
Use RL68H (or of the same viscosity) synthetic oil. Calculate the additional amount according to the following formula:
When the length of the connecting piping exceeds 100 ft. (30 m), add lubricating oil using the following formula:
L: Amount of lubricating oil to add (ml)
R: Additional refrigerant charge (kg)
Note: Maximum additional oil is 4L. If calculation is over 4L, do not exceed 4L.
Additional amount (lb.)=Length ratio
Liquid pipe diameter (in.)
3/8
1/2
5/8
6/8
7/8
R (kg) =
L =
( )
lb.
× Liquid line length (ft.)
ft.
Length ratio (lb./ft.)
Additional amount (lb.)
2.2
(R×0.25)
×1000
0.9
20
0.039
0.075
0.122
0.145
0.243
Publicité
