HRX-OM-I051
Chapter 7 System Maintenance
7.3 Storage
HRZ Series
7-4
7.3.1
Draining of circulating fluid out of tank
1.
Prepare the container for circulating fluid recovery at the back of this system.
2.
Connect the drain hoses to the main and
sub tank drain ports each. Insert the tip
of the hose into the container.
Prepare a drain hose (Rc3/8-diameter) on your
responsibility.
3.
Remove the cap of the circulating fluid fill port.
4.
Open the valves of the main and sub tank drain ports to drain the circulating fluid.
5.
Apply air purge from the the circulating fluid return to push the circulating fluid remaining in
the heat exchange back in the tank and drain it.
Max. 10cm
Drain port
Container for circulating
fluid recovery
Drain port
Circulating fluid fill port cap
Circulating fluid return
Figure 7-1 Container for Circulating Fluid Recovery
Use the clean container for circulating fluid recovery. Reuse of the
recovered circulating fluid with contaminated will cause insufficient
cooling and system failure
Be sure to wait until the circulating fluid obtains room temperature for its
draining. Potential burns and dew intrusion may occur if disregarded.
If the recovered circulating fluid is contaminated by foreign
substances, completely remove them. Do not reuse comtaminated
fluid.
Potential insufficient cooling, system failure and froth in the
circulating fluid may occur if disregarded.
Recovered circulating fluid must be sealed in a container to prevent
contamination from moisture or foreign substances.
Stored in a cool, dark place.
Keep it from flame.
