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Reservoir filling locations (Typical)
Thumbscrew
Filling Requirements
Remove the reservoir access panel by unscrewing the thumbscrews. Locate
the reservoir plug (square nut). Remove the plug and fill the reservoir with
clean cooling fluid, following the special considerations outlined in the
following paragraphs.
Circulating to a closed system (closed to the atmosphere)
|Fill the reservoir to the bottom of the fill hole threads. Since the reservoir
capacity is small compared to many instruments being cooled, have extra
cooling fluid on hand to keep the system topped off when external circulation
is started.
NOTE: The tank in your unit has a vent that relieves pressure built up from
thermal expansion of water. The vent is located on the reservoir plug. It
activates when tank pressure reaches 3 - 5 psi.
Do not replace reservoir plug with a non-vented type or damage to the
tank may occur.
Circulating to an open system (open to the atmosphere)
Fill the reservoir so ¾ of the fill hole threads are covered. Wrap the tank
plug with Teflon
®
sealing tape. Replace the tank plug and tighten securely to
prevent air entry.
When circulating cooling fluid to an open vessel or tank, connect the OUTLET/
SUPPLY and INLET/RETURN lines to the open tank. Secure the INLET/
RETURN (suction) line below the fluid surface. The INLET/RETURN line should
be submerged deep enough to avoid sucking air. Make sure the INLET/
RETURN line is free of particles and debris that can block the flow of fluid. A
baffle or screen may be required.
Reservoir Access Panel
Reservoir Plug
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