
B–70115EN/03
4. INSTALLATION
97
To avoid cooling water trouble and minimize the frequency of cooling
water exchange, the following anticorrosive should be added to the
cooling water. Consult the chiller manufacturer for use of the
anticorrosive.
Product name: CONTLIME K–6000
Manufacturer: MITSUBISHI GAS CHEMICAL. Inc.
Use: Add the anticorrosive to the cooling water to obtain a
concentration of 1000 ppm (100 mȏ per 100 ȏ). Every
month, check the concentration of the anticorrosive
using concentration test paper designed specifically
for the anticorrosive. Add anticorrosive, as required,
to maintain the concentration at about 1000 ppm.
Concentration test paper: A concentration test paper set (including
50 sheets of paper and a dropper) is
available together with the CONTLIME
K–6000, manufactured by MITSUBISHI
GAS CHEMICAL, Inc.
Even when the concentration of the anticorrosive is controlled as
explained above, the cooling water must, nevertheless, be replaced every
year.
To remove contaminants adhering to the inside surfaces of the cooling
water system, clean the system using the cleaning agent indicated below.
Consult with the chiller manufacturer prior to using the cleaning agent.
Product name: DESLIME
Manufacturer: MITSUBISHI GAS CHEMICAL. Inc.
Use: Replace up to 10% of the cooling water with this agent,
then circulate the cooling water for one hour. Next,
drain the cooling water and thoroughly flush the
cooling system. Note that DESLIME is highly toxic
in its undiluted form. Never touch DESLIME. If you
get any DESLIME on your skin, wash it with copious
amounts of water. Never dispose of any waste liquid
until the hydrogen peroxide, which is a major
component, has decomposed such that its
concentration is reduced.
4.4.1.2
Water treating agent
4.4.1.3
Chemical cleaner