Honeywell ml6984a4000 non-spring return valve actuator the honeywell ml6984a4000 is a direct mounted non-spring return valve actuator designed to fit the v5011 (2 way) and v5013 (3 way valve bodies). It is to be used with spdt series 20 (onf-off) and series 60 (floating control) 3 wire thermostats and controllers. Features: self contained motor actuator and linkage assembly, multi-pose mounting capability, compact size for used in confined areas, spdt 24vac and 24vdc applications, nema 3r electrical protection. product specifications: description: direct-coupled linear stroke valve actuator, appication: hvac, valve, fail safe mode: remains in place, supply voltage: 24vac or 28vdc, auxilliary switches: none internal, external with 272630d accessory, operating temperature range:32 to 130 deg f