SMC Networks HRZD020-W1S-W1S, Operation Manual

Page: 40 / 129

HRX-OM-M005
Chapter 4 Product Startup and Shutdown
4.3 Filling of Circulating Fluid HRZD Series
4-2
背面
循環液規定レベル
4.3 Filling of Circulating Fluid
4.3.1 Preparation of circulating fluid
When the circulating fluid is a fluorinated fluid
When the circulating fluid is a 60% ethylene glycol aqueous solution
Always check the concentration of the circulating fluid.
Figure 4-1 Circulating Fluid Filll Port and Circulating Fluid Level Gauge
Circulating fluid fill port
Circulating fluid level
gauge
Circulating fluids to be used vary with system models.
See section 8.1.1 “Product specification” in Chapter 8 Appendix on
page 8-1 for the designated circulating fluid
for a specific model.
Make sure of no oil, moisture, and other foreign materials contaminate
the circulating fluid. Potential cooling error or product failur may occur
if disregarded, due to contaminants freezing internally.
Low concentration EG in the circulating fluid may cause system failure due to it being frozen in
the system.
High concentration EG in the circulating fluid may cause circulating pump overload, which
triggers “Pump Breaker Trip FLT”.
Potential cooling error may occur if the circulating fluid varies in concentration.