SMC Networks HRS100-A?-20-? Operation Manual page 52

HRX-OM-S004
Chapter 3 Transport and Setting Up
15% aqueous solution of ethylene glycol
When a 15% aqueous solution of ethylene glycol is used, prepare the ethylene glycol aqueous
solution separately.
To control the density of the ethylene glycol aqueous solution, a densitometer is available (sold
separately) from SMC.
Item
Ethylene glycol aqueous solution 60%
Densitometer
Piping of the overflow
Piping name
Automatic fluid fill port
Overflow port
3.5 Circulating Fluid Supply
3-32
When a 15% aqueous solution of ethylene glycol is used, check the
density periodically because the density will be lower due to the
automatic fluid-fill function.
Port size
Rc1/2
Rc1
Fig. 3-21 Piping of the automatic fluid-fill port and overflow
When using the a 15% aqueous solution of ethylene glycol, collect
the overflowed fluid in the recycling pit and dispose it according to
the local low of the country and area that the product is installed.
No
Please dilute to 15% with tap
HRZ-BR001
water and use it.
HRZ-BR002
Piping specification
Supply pressure: 0.2 to 0.5MPa
The piping should be
length of 5 meters or less.
Avoid riser piping (trapping part).
Remarks
－
ø25 mm or more and the
HRS Series