
B-70254EN/01 4.MAINTENANCE
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4.5.3 Cleaning Agent
To remove foreign matters such as fur that have adhered to the inside
of the cooling water circulating path, wash the cooling water
circulating path using the following detergent. Consult the chiller
manufacturer for use of the detergent.
Product name:
DESLIME
Manufacturer:
MITSUBISHI GAS CHEMICAL ISC
Use:
Add the detergent of 10% of the amount of cooling water,
circulate the water for an hour, then drain the water. After that,
rinse the cooling water circulating path thoroughly. Do not touch
a stock solution of DESLIME with your bare hands because the
solution is a strong chemical. If a stock solution accidentally
contacts your skin, wash the stock solution off your skin well
under running water.
If waste water used for washing is left standing, the main
ingredient, hydrogen peroxide, is decomposed. Wait until
hydrogen peroxide is decomposed, or dilute waste water with
water to reduce the concentration, then flush the waste water
down the drain.
4.5.4 Antifreezing Solution
If the chiller is used in a cold district, it should be provided with an
antifreezing function. When it is extremely cold, the chiller should
be kept running.
If it is necessary to use an antifreezing solution for lack of an
alternative, he following antifreezing solution should be used. Its
concentration should be 30% (usually) or 40% (in an extremely cold
district). Use of an antifreezing solution should be restricted within
four months in winter. Do not use antifreezing solution together with
an anticorrosive. The following antifreezing solution is already added
with an anticorrosive.
Product name:
AURORA BRINE
Manufacturer:
TOKYO FINE CHEMICAL Co.
Use:
Refer to the description indicated on the product.