HRX-OM-O021
Chapter 7 Control, Inspection and Cleaning
7.4 Stop for a Long Time HRS Series
7-6
7.4 Stop for a Long Time
If there is a concern that the product will not be operated for a long period of
time or there is a risk of freezing, conduct the following operations.
1. Turn off the user’s power supply (breaker).
2. Drain the circulating fluid and facility water (for water-cooled type) of the product
completely.
Please refer to ’’7.4.1 Discharge of the circulating fluid’’ for the method of drain the
circulating fluid from the product.
3. After draining, cover the product with vinyl, etc. and store.
7.4.1 Discharge of the circulating fluid and facility water
1. Place a container underneath the drain outlet.
(The capacity of the container should be approx. 10L.)
Fig. 7-4 Drain the circulating fluid and facility water from the product
2. Remove the tank lid.
3. Open the ball valves at the drain port and drain the fluid.
4. Confirm that a sufficient amount of the circulating fluid has been drained from the user’s
machine and piping, and apply air purge from the circulating fluid return port.
z Stop the customer device and release the residual pressure before
discharging the circulating fluid.
z Before discharging the facility water, in case of water-cooled
refrigerated type, stop the equipment for the facility water, or stop
the facility water circuit to release the residual pressure.
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