What type of coolant is required for the SR40 V3 system?

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Short answer Two loops, two fluids. The primary loop serving the hardware runs pure, deionized or specially treated water for maximum thermal conductivity and corrosion protection. The external loop to the dry towers runs a water-and-industrial-glycol mixture formulated for the site's minimum ambient temperature. Primary loop: deionized or treated water Prevents galvanic corrosion in hardware Secondary loop: water + industrial glycol Glycol mix set to site minimum temp Why each loop uses a different fluid The two-loop arrangement: treated water inside, glycol mix outside. Primary loop optimizes heat transfer. Water has the highest specific heat capacity of the practical options. Treated water protects the hardware. Deionized or specially treated water prevents galvanic corrosion inside the mining hardware. Secondary loop buys freeze protection. Industrial glycol keeps the outdoor loop liquid at the region's minimum temperatures. There is a trade-off. Higher glycol concentrations add protection but slightly reduce heat dissipation efficiency. Hardware side — protected by treated water. Outdoor side — glycol mix for freeze protection. Concentration is engineered, not generic Glycol ratio is set against your deployment region. The mixture is formulated for the minimum ambient temperature at the site — and reviewed against coolant degradation guidance over the operating cycle. Related questions Purified water vs. glycol: How do ratios affect cooling? How to determine coolant replacement and degradation? Freeze protection for dry coolers at -20°C? Confirming coolant spec for your climate? Talk to a CoolSpace engineer

What type of coolant is required for the SR40 V3 system?

Short answer

Why each loop uses a different fluid

Concentration is engineered, not generic

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