Electra DNC series Service Manual page 148

INSTALLATION MANUAL
E. Close the two service taps of the manifold, on suction side and on the compression side,
and stop the operation of the vacuum pump. Make sure that at this stage the pressure
gage remains stationary and stable, and does not change its reading for the next 5
minutes.
F. Disconnect charging tubes from the pump and from the two service taps.
G. Close and tighten the two protective caps of the service taps. Take care to use torque
wrench, set to the appropriate torque value (see table No. 3 for the appropriate torque
values for tightening the connectors).
1. Service manifold
2. Vacuum pump
3. Outdoor unit
4. Service valve
5. Cap
6. Suction tap
7. Service valve (optional)
8. Liquid tap
9. Indoor unit
10. Flared connection - suction side
11. Flared connection - liquid side
Fig. 25. Tube connections for performing vacuum test
English 22
CONTENT