Eq 3 max wireless radiator thermostat system eq 3 99017 the eq 3 max wireless radiator thermostat is a component of the max system that enables intelligent control of radiator valves to provide a fully zoned retrofitable heating systemexisting radiator valve heads are replaced with the wireless battery powered max units in a matter of minutes no plumber is required and the heating system does not need to be drained the max units then communicate wirelessly with the max cube which is