Daikin RZQG71~140L7V1B Service Manual page 275

Precautions for New Refrigerant (R-410A)
2. Torque wrench
 Specifications
•
 Differences
•
3. Vacuum pump with check valve
 Specifications
•
•
 Differences
•
•
264
Dimension B
Nominal size Class-1
1/2 24
5/8 27
No change in tightening torque
No change in pipes of other sizes
Change of dimension B
Only 1/2", 5/8" are extended
Discharge speed
50 l/min (50 Hz)
60 l/min (60 Hz)
Suction port UNF7/16-20(1/4 Flare)
UNF1/2-20(5/16 Flare) with adaptor
Equipped with function to prevent reverse oil flow
Previous vacuum pump can be used by installing adaptor.
Class-2
26
29
For class-1: R-407C
For class-2: R-410A
Dimension B
Vacuum pump adaptor
Reverse flow preventive
vacuum adaptor
 Maximum degree of vacuum
Select a vacuum pump which is able to keep
the vacuum degree of the system in excess of
–100.7 kPa (5 torr – 755 mmHg).
Unit:mm
Previous
24
27
ESIE12-06
Appendix