Section 3 Installation
3-5
Cole Palmer
5°C to 95°C — Distilled Water or Deionized Water (up to 3 MΩ-cm)
Normal tap water leads to calcareous deposits necessitating frequent unit
decalcication, see table on next page.
Calcium tends to deposit itself on the heating element. The heating
capacity is reduced and service life shortened.
-30°C to 80°C — Water with Glycol
Below 5°C water has to be mixed with a glycol. The amount of glycol
added should cover a temperature range 5°C lower than the operating
temperature of the particular application. This will prevent the water/
glycol from gelling (freezing) near the evaporating coil.
Excess glycol deteriorates the temperature accuracy due to its high
viscosity.
-40°C to 200°C — SIL180:
SIL180 is suitable for covering nearly the entire range with just one liquid,
especially when used with the cooling units. See next page for additional
information. Unfortunately SIL180 has a wetting tendency necessitating
the occasional cleaning of the bath cover.
other temperatures:
Cole Palmer offers a range of heat transfer uids for these temperature
control applications.
SYNTH 60, SYNTH 200, SYNTH 260:
Synthetic thermal liquid with a medium life span (several months) and
little smell annoyance. See next page for additional information.
SIL 100, SIL 180, SIL 200, SIL 300:
Silicone oil with a very long life span (over 1 year) and negligible smell.
See next page for additional information.
Heat transfer uids are supplied with an EC Safety Data Sheet.
Ensure, when selecting the heat transfer uid, that no toxic gases
can be generated. Flammable gases can build up over the uid
during usage.
Ensure the over temperature cut-off point is set lower than the re
point for the heat transfer uid selected.
The highest working temperature as dened by the EN 61010 (IEC
1010) must be limited to 25°C below the re point of the bath uid.
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