Kodiak Recirculating Chiller Technical Manual
Manual # 820-0109, Rev. Y, 07/08/10 - 27 - Check Lytron’s website www.Lytron.com
for the most current technical information.
COOLANT MAINTENANCE
Recommended coolant for use in Lytron systems
Clean water is recommended for most systems. Systems ordered with the deoinized plumbing package
require that deoinized water be used. Use of deoinized water in systems with brass components may cause
premature failure of the system.
If the set point temperature is below 50°F/10°C, Ethylene or Propylene Glycol should be added to the water
with a mix ratio of 30% Ethylene or Propylene Glycol to 70% water.
Do not use automotive antifreeze as the rust inhibitors may cause premature failure of the pump seals.
Avoid using water with a high mineral content.
If the chiller is exposed to sunlight, add an algaecide to control organic growth in the coolant. A mixture of
30% Ethylene or Propylene Glycol can also be used to control algae growth.
Checking coolant level
There is a coolant level site tube on the front of the unit. Coolant should be added as soon as this indicator
approaches the half-full mark.
Reducing the coolant volume may reduce the chillers cooling capacity.
Inspect coolant level weekly or whenever the chiller is powered on.
Flush & replace coolant periodically
In order to avoid electric shock, be sure to wipe up all fluid spills in the unit before applying
electrical power. Failure to do so could result in damage to the equipment, personal injury
and/or death.
Depending on the environmental conditions, the coolant should be flushed and replaced as necessary,
depending on the amount of particulate matter that has been found in the system during planned
maintenance inspections.
If the pump strainer and coolant is found to have little or no contamination after the first inspection, replacing
the coolant and cleaning the strainer can be done less frequently.
The pump strainer may be located in one of two places. Refer to the strainer cleaning procedures under
System Maintenance and Service.
When the strainer is cleaned or replaced, the electrical power must be disconnected and the system drained
of all coolant.
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