• Provides glycol make up automatically Suitable for all selections of bladder and compression tanks up to 90 psi (621 kPa) cold-fill pressure Large mixing tank capacity to accommodate system overspill through safety valve Automatic cut-out switch monitors the status of the GLA tank and shuts down the pump in the event that mixture level is too low Single phase power connection Volume scale is etched on the side of the GLA tank 1/2 in NPT fitting for connecting the GLA tank to the HVAC system

The armstrong GLA glycol auto-fill unit is designed to provide automatic glycol make up for HVAC systems. In the past, contractors and end-users have usually provided customized add-on assemblies for this function. The specially molded mixing tank offers a compact package with built-in housing for the controls and make up pump. This auto-fill package is a comprehensive system that can be specified on your project.