Operation
I
4-11
4
Opera
tion
Start-up
Fill Water Chemistry Requirements
Water Characteristic
Quality Limitation
Alkalinity (HCO3-)
70-300 ppm
Aluminum (Al)
Less than 0.2 ppm
Ammonium (NH3)
Less than 2 ppm
Chlorides (Cl-)
Less than 300 ppm
Electrical Conductivity
10-500µS/cm
Free (aggressive) Carbon Dioxide (CO2)
†
Less than 5 ppm
Free Chlorine(Cl2)
Less than 1 PPM
HCO3-/SO42-
Greater than 1.0
Hydrogen Sulfide (H2S)
Less than 0.05 ppm
Iron (Fe)
Less than 0.2 ppm
Manganese (Mn)
Less than 0.1 ppm
Nitrate (NO3)
Less than 100 ppm
pH
7.5-9.0
Sulfate (SO42-)
Less than 70 ppm
Total Hardness (dH)k
4.0-8.5
†
Dissolved carbon dioxide calculation is from the pH and total alkalinity values shown below or measured on the site
using a test kit. Dissolved Carbon Dioxide, PPM = TA x 2
[(6.3-pH)/0.3]
where TA = Total Alkalinity, PPM as CaCO
3
CAUTION:
When your application requires the use of glycol, use industrial
grade glycol specifically designed for heat transfer systems and equipment. Never
use glycol designed for automotive applications. Automotive glycols typically have
additives engineered to benefit the materials and conditions found in an automo-
tive engine; however, these additives can gel and foul heat exchange surfaces
and result in loss of performance or even failure of the unit. In addition, these
additives can react with the materials of the pump shaft seals resulting in leaks or
premature pump failures.
WARNING:
Ethylene Glycol is flammable at higher temperatures in a vapor state. Carefully
handle this material and keep away from open flames or other possible ignition
sources.
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Summary of Contents for Thermolator TW-P
Page 6: ...iv I Table of Contents ...
Page 12: ...1 6 I Introduction ...
Page 36: ...3 14 I ...
Page 58: ...4 22 I Operation ...
Page 72: ...5 14 I Maintenance ...
Page 128: ...E 4 I Appendix ...
Page 134: ...G 4 I Appendix ...
Page 136: ...H 2 I Appendix ...