SMC Networks HRSH090 Series, Operation Manual

Page: 51 / 194

HRX-OM-R026
Chapter 3 Transport and Setting Up
HRSH Series 3.6 Option J Piping of
【
Automatic fluid filling
】
3-31
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
Supply temperature
：
5 to 40
℃
Overflow outlet Rc3/4
Piping should be within 19mm of I.D. and 5m of
length. Riser piping (trapping area) should be
avoided.
Fig. 3-22 Piping to automatic fluid filling port and overflow port

Supplying fluid from the automatic fluid filling port
Fluid filling starts if the power supply is turned ON when the fluid level of the circulating fluid
is “L” of the level indicator or lower (4.2
Preparation for Start). Fluid supply stops when the
fluid level reaches the proper level. If the fluid level does not reach the proper level in a
certain 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.
＜Piping to automatic
fluid filling port＞
＜Piping to the over flow port＞
Within 19mm of I.D. and 5m of length.
＜Piping to automatic
fluid filling port＞
＜Piping to the over flow port＞
Within 19mm of I.D. and 5m of length.