We are in the process of commissioning 4 18V50SG units, and made the decision early-on to use a 20% glycol solution in the cooling water systems for freeze protection. The primary concern was freezing the radiators during the occasional hard freeze (temps in the teens and 20’s for 6-8 hours)
My question for the group is: are you using glycol for freeze protection, or have you found the LT heaters adequate to maintain freeze protection for the radiators?
Thanks,
Dave Mordecai
City of Tallahassee – Hopkins Station