Huber Unichiller 400T, Руководство по эксплуатации

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Commissioning
Chapter 2 OPERATION MANUAL
V2.3.0en/07.06.19//17.12
Unichiller®
29
Usage of un-filtered river/sea or ocean water as cooling water
DAMAGE TO THE TEMPERATURE CONTROL UNIT

Un-filtered river or sea water is not suitable for use as cooling water due to its contaminants.
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Use drinking water or filtered river or sea water for cooling.
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Sea water must not be used for water cooling.
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For information about water quality, see www.huber-online.com.
To minimize cooling water consumption, Huber temperature control units with water cooling are
equipped with a cooling water regulator. It limits the flow of cooling water to the amount required
by the current load situation. If only a low cooling capacity is requested, only a small amount of
cooling water is consumed. It cannot be ruled out that cooling water flows when the machine is
switched off. Shut off the cooling water supply to the temperature control unit even for shorter
downtimes (e.g. overnight).
Preparing the temperature control unit with water cooling:
In the event of outdoor installation, the operating company must ensure that the cooling water
supply and return lines are laid frost-protected. The cooling water temperature must not fall below
3 °C. At ambient temperatures below 3 °C, the cooling water supply must be heated.
The minimum pressure differential in the cooling water circuit and the recommended cooling
water inlet temperature can be found on the data sheet (from page 85 in Section »Annex« ).
The illustration “connection diagram” can be found on page 85 in section »Annex« .
PROCEDURE

Close (if fitted) the >Cooling water drain< [15].
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Connect the >Cooling water outlet< [14] to the water return flow. A seal must be used.
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Connect the >Cooling water inlet< [13] to the water supply. A seal must be used.
Leaking cooling water connections
DAMAGE BY ROOM FLOODING

Slowly open the building-side shut-off valves of the cooling water supply and return line.

If water leaks from the cooling water connections: shut off the cooling water supply and return
line immediately.

Provide leakproof cooling water connections.

Open the shut-off valves in the water line on the temperature control unit and on the building
side.

Check the connections for leaks.
2.9 Temperature control unit for outdoor installation incl. winter
operation
Shut down temperature control unit with water cooling in outdoor operation
MECHANICAL DAMAGE CAUSED BY WATER FREEZING IN THE COOLING WATER LINE

Leave the temperature control unit permanently enabled.

Only turn off the temperature control unit permanently if the temperature control unit was
separated from the cooling water circuit and discharged at ambient temperatures below freez-
ing point.
Connection diagram