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Glycol Adding Requirements
- Purchase glycol and corrosion inhibitor from a local qualified smart cooling product installation company.
- Determine the glycol volume concentration based on the lowest temperature in record in the area.
- As the glycol solution is toxic, avoid skin contact with the glycol solution and splashing it into your eyes. Dispose of the glycol solution in accordance with local laws.
- To prevent glycol solution from corroding pipes and the heat exchanging coil, corrosion inhibitor should be mixed into the glycol solution. For details about the mixing schemes, consult glycol experts.
- Check the quality of the glycol solution on a quarterly basis and evaluate the anticorrosion effects. For details, consult local water treatment experts.
Table A-1 Glycol concentration requirements at lowest temperatures
Lowest Recorded Local Temperature |
Glycol Volume Concentration |
Freezing Point of Glycol Mixed Solution to Be Added |
|---|---|---|
0°C |
13.6% |
–5°C |
–5°C to 0°C |
22% |
–10°C |
–10°C to –5°C |
30% |
–15°C |
–15°C to –10°C |
35% |
–20°C |
–20°C to –15°C |
40% |
–25°C |
–25°C to –20°C |
45% |
–30°C |
–30°C to –25°C |
49% |
–35°C |
–35°C to –30°C |
52% |
–40°C |
–40°C to –35°C |
55% |
–45°C |