HRX-OM-M090
Chapter 3 Transport and Setting Up
3.6
Option J Piping of
【
Automatic fluid filling
】
HRS Series
3-20
3.6 Option J
Piping of
【
Automatic fluid filling
】
Automatic fluid filling port and over flow port need to be connected when
optional [automatic fluid filling] is selected.
Piping to automatic fluid filling port
Connect the piping to supply the circulating fluid. Automatic fluid filling is performed by using
the solenoid valve which is built in the thermo-chiller.
Piping to the overflow port
This is necessary when automatic fluid filling function is used. Discharge excess circulating
fluid when the fluid level in the tank rises due to the failure of the solenoid valve etc.
Piping name
Port size
Piping specifications
Automatic water-fill inlet
Rc3/8
Supply pressure
：
0.2 to 0.5MPa
Overflow outlet
Rc3/4
Piping should be within f19 of I.D. and 5m of
length. Riser piping (trapping area) should be
avoided.
Fig. 3-14 Piping to automatic fluid filling port and overflow port
Supplying fluid from the automatic fluid filling port
Fluid filling starts if the power supply switch is turned ON when the fluid level of the
circulating fluid is “L” of the level indicator or lower (P XX). Fluid supply stops when the fluid
level reaches the proper level. If the fluid level does not reach the proper level within a fixed
time after starting supplying fluid, it causes the alarm “AL01; Low level in tank". Fluid supply
continues while the alarm is generated. Fluid supply stops after the fluid level reaching
proper level. Alarm continues after fluid supply is completed. Release the alarm referring
Chapter 6.
