SMC Networks HRR010-A-10 Series, Operation Manual

Page: 132 / 166

HRX-OM-X084
Chapter 8 Control, Inspection, Exchange and Cleaning
8.2 Inspection, exchange, cleaning HRR Series
8-6

Replacement of circulating fluid

Replace the circulating fluid with new clean fluid periodically, or it
may get algae or decompose.

Circulating fluid to be supplied in the tank should satisfy the water
quality specified in “
Table
8-1: Quality criteria for clean water (tap
water)”.

Make sure that the concentration of ethylene glycol aqueous
solution is 15%+5/0 when 15% ethylene glycol solution is used .

If the particle filter element is dirty, replace the element. (See 8.4.1
Replacing Particle Filter.)

Cleaning of the facility water system (Water cooled type)

Clean the customer's facility water system and replace facility
water.
 Facility water quality must satisfy the criteria specified in “Table 8-1
Quality criteria for clean water (tap water)”

Check the strainer and clean it if it is dirty.
(Refer to "Cleaning of Y - strainer".)

Cleaning of Y- strainer
When cleaning Y-strainer, facility water must be discharged.
Please refer to
“8.3.2 Discharge of the facility water”.
If there is foreign matter accumulated or clogging in the facility water
system, pressure loss increases with less flow rate, and it may
damage the screen mesh.

Before discharding the facility water, stop operation of the user
’s
equipment and release the residual pressure.

Wear protective equipments like gloves to avoid getting injure like
a cutting hand by sharp edge of panel