Schreiber Chillers Excellon 150AC - Manual (Page 11)

Excellon 235785-01/02
CHILLED WATER DISTRIBUTION PIPING
The chilled water distribution piping is an important factor in the performance of the
water chiller. Proper piping will add to the LIFE of your chiller. This chiller is designed to
be a containment free system. The chilled water piping should be the same.
1. If you are installing this water chiller to some existing chiller water lines (Black
or galvanized) there is a good chance there will be rust in this system. If you
cannot flush this system clean then it should not be used. A rust
contaminated system will cause damage to the copper evaporator heat
exchanger.
2. Should this be a new system and you are installing chilled water piping. We
suggest using PVC piping if allowed. It is a poor conductor of heat, so you do
not loose as much BTU capacity in the movement of the chilled water and
there is no rusting.
Copper line will prevent any rusting but there is greater heat loss. You might
want to insulate these lines.
3. Should the water chiller be installed next to your cooling load. We would
suggest rubber hose. This would prevent any great heat loss. And there
would also be no contamination.
4. If black pipe, galvanize, iron, and steel pipe are your piping of choice, you
should be aware of the corrosiveness of these materials. Never use black iron
pipe.
5. Female connections to chiller are brass. If your connections to the chiller are
anything other than, PVC, copper, or rubber hose you should consult with
your local plumbing supplier about the use of dielectric pipe connections
when dissimilar metals are used. If we can be of any assistance with this
please call the manufacturer.
6. Keep in mind you should keep all chilled water lines full size. If your chiller
has 1" NPT, then the chilled water lines should be no less.
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