Cole Parmer PolyStat CC1080, Руководство пользователя

Страница: 31 / 32

- 29 -
15. Maintenance
After time the stainless steel surfaces of the internal tank vessel and housing
may show spots and become tarnished. An everyday stainless steel cleaner
can be used. The internal tank vessel and built–in components should oc-
casionally (at least every time the internal tank liquid is changed) be cleaned
using a household cleaner. Vinegar–based cleaners are suitable if used ac-
cording to the manufacturers recommendations.
Do not use scouring powder.
Use only distilled water as temperature fluid to avoid calcium spots and
to make up water/glycol mixtures.
The inside of the internal tank vessel must be kept clean in order to ensure
a long service life. Substances containing acidic or alkaline substances and
metal shavings should be quickly removed as they could harm the surfaces
and cause corrosion. If corrosion (e.g. small rust marks) occur in spite of this,
clean with stainless steel caustic agents. These substances should be ap-
plied according to the manufacturers recommendations.
15.1 Cleaning the unit's fins
In order to maintain the unit's cooling capacity cleaning has to be done two to
four times per year, depending on the grade of soiling.
Switch off the unit and disconnect it from its main power source.
15.2 Discarding the unit
This unit contains ozone–friendly coolant R134a, but should only be
discarded by a qualified technician.