Operation Manual
KRO3000
Rev 2
6
Caution: THE SALT USED FOR REGENERATION OF THE WATER SOFTENER MUST BE
“CROWN HG WATER SOFTENER SALT”. NO OTHER SALT CAN BE USE FOR
REGENERATION.
4.2.2 Carbon Filter & Cartridge Filters
The carbon filter is designed to remove the chlorine from the water. Cartridge filters are designed
to remove suspended material greater than 5-Micron @ 1-Micron prior to the pre treated water
flows into the membrane. This protects the membrane from significant colloidal contamination.
The cartridges should be renewed every 4 months, as minimum. If the raw water is significantly
polluted then the cartridges should be changed in a shorter period of time.
Caution: It is EXTREMELY important to renew the cartridges. Mainly the carbon filter. If
any trace of chlorine goes into the housing, the membrane will be permanently damaged.
4.2.3 High-Pressure
Pump
High-pressure pump is one of the key components, to boost the pressure for correct membrane
operating conditions.
4.2.4 RO Membrane Housing
RO membrane housing is to guarantee the RO membrane can work under the conditions of
normal pressure and seal arrangement.
Caution: The operator should apply silicon grease on the “Y’ type plastic ring in order to
ensure proper sealing of the membrane brine seal.
4.2.5 RO Membrane
RO membrane is the key component of the RO main unit and has a determinative effect on the
quantity and quality of water produced. The RO membrane utilizes pressure-energy to separate
larger contaminant molecules from the body of water.
For a given Temperature, Pressure and feed Total Dissolved Solids (TDS), if the quantity of water
produced decreases by 10%, please consult your supplier of the unit.
4.2.6 Conductivity
Monitor
The function of conductivity monitor is to measure conductivity condition of the permeate water.
Caution: Please do not clean with strong acid and strong alkali to prevent the electrodes
from being damaged.
4.2.7 Reject Control Valve
The main function of the reject valve is to adjust the reject flow from the membrane. Adjust the
reject valve to attain the correct recovery rate and systems pressure in conjunction with the
recycle valve.
Caution: Please do not turn off the reject valve. The high pressure in the membrane
housing may cause irreversible damage to membrane and/or housing.
