CGAD-SVN02C-EN 21
P SIG
Sat . L iq .
(ºC )
Sat
V a p . P SIG
(ºC )
Sat .
V ap .
Table for
Regulating R-407c
Table 05 - Calibrating Superheat and Subcooling
Table 06 - Pressure Table (psig) X Temperature (°C) R-407c
increase decrease increase decrease
Open the expansion valve
x x
Close the expansion valve
x x
Add R-407c refrigerant
x x
Remove R -407C refrigerant
x x
Su b c o o lin g
A c t iv it y
Su p er h e at in g
1.Byvaryingthesubcooling1°C,the
superheat varies 3°C.
2. Thethermostatic expansion valve
closes by turning the knob clockwise,
while counterclockwise opens it.
3. If the equipment is requested as not
having access valves (recommended),
all of them leave the factory with
Schrader valves installed on the lines
ofsuction,discharge, and liquid,which
will be used to make the readings of
pressures and maintenance
operations.
IMPORTANT: