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ETHYLENE GLYCOL CORRECTION TABLE
% Ethylene glycol weight
10% 15% 20% 25% 30% 35%
Lowest outlet water temperature
Suggested security limit Cooling
capacity coefficient
Power input coefficient
Flow rate coefficient
Pressure drop coefficient
°C 4 2 0 -2,8 -6 -10
°C 1 -1 -4 -6 -10 -14
- 0,99 0,985 0,981 0,977 0,974 0,971
- 0,993 0,99 0,988 0,986 0,984 0,982
- 1,04 1,05 1,07 1,08 1,09 1,11
- 1,11 1,17 1,23 1,31 1,39 1,47
In order to calculate performance with glycol solutions multiply main sizes by respective coefficients.
GLYCOL PERCENTAGE DEPENDING ON FREEZINGTEMPERATURE
% glycol according to the freezing temperature
Freezing temperature 0°C -5°C -10°C -15°C -20°C -25°C
% Ethylene glycol
Flow rate coefficient
5% 12% 20% 28% 35% 40%
1,02 1,04 1,07 1,09 1,11 1,13
In order to calculate performance with glycol solutions multiply main sizes by respective coefficients.
IMPORTANT:
An oversized water pump as on board unit pump is required for operation with glycol >25%.
If any doubt please contact your Trane Sales Office
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