HRX-OM-K003
Chapter 4 System Startup and Shutdown
HRW Series 4.3 Supply of Circulating Fluid
4.3.2 Supply of circulating fluid
Remove the circulating fluid fill cap, and fill the circulating fluid until it reaches its
specified level.
The circulating fluid specified level is a range between “HIGH” and “LOW” in
Figure 4-1.
Be sure to tighten the cap until it clicks after fluid supply.
If the circulating fluid is supplied over the specified level, follow the procedure
provided in section 7.3.1 “Draining of circulating fluid out of tank” on page 7-4 to
drain excess fluid until it reaches the specified level.
[Tips]
Level between “HIGH” and “LOW” represent liquid level in normal running
condition. Immediately as you start filling up the chiller, the internal
transferring pump start pumping fluid from the Sub Tank into the Main Tank.
Thus the fluid level in the level gauge will start to drop.
During initial priming of the external piping, addition fluid is needed. See
section 8.1.1 “System specification” on page 8-1 for Sub Tank and Main Tank
capacity.
When supplying the circulating fluid, make sure that the fluid inside
this system has dropped to room temperature for the prevention of
burns.
Circulating fluid must be supplied to be in the range between “HIGH”
and “LOW”. Potential overflow of hot circulating fluid may occur due
to excessive volume.
Total fluid volume use to fill up the system including initial priming
should not exceed combined volume of Sub Tank and Main Tank.
If level is below the “LOW” mark, this system will trigger an alarm.
Be sure to tighten the cap until it clicks after circulating fluid supply.
Potential circulating fluid vaporization may occur if disregarded.
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