HRX-OM-Q026
Chapter 7 Control, Inspection and Cleaning
HRSH Series 7.4 Operation Stop for an Extended Period of Time
7-7
7.4 Operation Stop for an Extended Period of Time
If there is a concern that the product will not be operated for an extended
period of time or there is a possibility of freezing in the winter time, take the
measures according to the instructions shown below.
1. Turn OFF the earth leakage breaker of the user’s power supply. (For
HRSH--40-turn the breaker handle to the OFF position as well.
Turn OFF the breaker inside the panel also when the option B, withearth leakage
breaker, has been selected.)
2. Discharge all the circulating fluid completely from the thermo-chiller.
Refer to ’’7.4.1 Discharge of the circulating fluid’’ for the method of drain the circulating
fluid from the product.
3. After discharging the circulating fluid, cover the product with a sheet (to be prepared by
user) before storing the product.
7.4.1 Discharge of the circulating fluid
1. Turn OFF the breaker of the user’s power supply.
2. Close the valve at the automatic water fill port.
3. Open the ball valve at the tank drain port, and discharge the circulating fluid.
4. Confirm that all the circulating fluid has been discharged completely from the user’s
equipment and piping, and then purge air to the circulating fluid outlet port of the
product.
5. Close the ball valve after discharging the circulating fluid.
Before discharging the circulating fluid, stop the user’s equipment
and release the residual pressure.
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