HRX-OM-W058
Chapter 3 Transport and Setting Up
HRS-R Series
3.6
Option J Piping of
【
Automatic fluid filling
】
3-23
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 19mm of I.D. and 5m of
length. Riser piping (trapping area) should be
avoided.
Fig. 3-16 Piping to automatic fluid filling port and overflow port
Supplying fluid from the automatic fluid filling port
Fluid filling starts if the power is supplied
when the fluid level of the circulating fluid is “L” of
the level indicator or lower (refer to P4-2 Preparation for Start). 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 7.
<
Piping to automatic
fluid filling port
>
Within 19mm of I.D. and 5m
of length
<
Piping to over flow port
>
<
Piping to automatic
fluid filling port
>
Within 19mm of I.D. and 5m
of length
<
Piping to over flow port
>
