SMC Networks HRR050-A 20 Series Operation Manual page 137

5.
Loosen air releasing plug.Facility water will come out from facility water inlet port.
Facility water outlet port
6.
After draining the facility water, securely tighten the air release plug.
7.
Install the cover panel by reverse procedure. (Recommended tightening torque：1.5N・m)
HRR Series
Chapter 8 Control, Inspection, Exchange and Cleaning
Facility water inlet port
Fig. 8-4 Discharge of the facility water
HRX-OM-X071
Air release plug
8.3 Stop for a Long Time
8-13