Haskris OPC5 - Installation: Glycol Mixture, Filling; Glycol Mixture

Page 27 of 55
Email: service@haskris.com
Phone: 001 847 956 6420
VII. Installation: Glycol Mixture, Filling
Glycol Mixture
Purpose: Glycol is required to resist freezing. Freezing risk is not only relevant in cold ambient
conditions. The evaporator in the refrigeration circuits can get cold enough that there is freezing risk.
Glycol type: Use pure, lab-grade propylene glycol. For example, DOWFROST is a common brand.
15 gallons of propylene glycol concentrate is provided with the chiller. The installation contractor is
responsible for providing any additional required glycol.
Water type: Use drinking/spring water.
Mixture: Use a refractometer to verify glycol mix percentage of 35-40%.
Provide extra: The installation contractor is responsible for providing an extra supply of glycol mixture
to replenish the reservoir during the start-up.
Volume: Use the table below to estimate what volume of water and glycol fluid will be needed. Take
the volume for the built-in reservoir and add the volume for the piping. Multiply the volume for the
piping according to the length of piping. For example, if the piping length is 200 ft, multiply the
volumes by 2.
Water
Glycol
Built-in Reservoir
15 gallons
57 liters
10 gallons
38 liters
Water
Glycol
100 ft of 1-1/2” ID Pipe
9 gallons
34 liters
6 gallons
23 liters
100 ft of 2” ID Pipe
15 gallons
57 liters
10 gallons
38 liters
Water and Glycol Volumes