Matches most 24V gas, oil and electric heating and air conditioning, 2-wire hydronic, millivolt, hydronic air handlers and single-stage heat pumps. The LUX PSM40SA mechanical thermostat switches with a snap action mechanism and adjustable heat anticipator.
Heat only in practice from 45 F to 90 F with 1 F accuracy. The mercury-free housing measures 3 in wide by 3.5 in high. Optional MTO84S wall plate available.
PSM40SA highlights
Snap action mechanism
Gives positive switching in a clean, compact dial design.
Adjustable heat anticipator 0.15-1.2A
Fine-tunes cycle length for even room temperature.
Wide low-voltage fit
Connects to 24 VAC systems, 2-wire hydronic, millivolt and single-stage heat pumps.
Mercury-free build
Provides valued-priced control without mercury.
PSM40SA specifications
Voltage: 24 VAC, 30 VAC max
Accuracy: 1 F over 50 F to 95 F
Dimensions: Width 3 in (77 mm) x Height 3.50 in (90 mm) x Depth 1.375 in (35 mm)
Control type: Mechanical
Temperature range: 45 F to 90 F (7 C to 32 C)
Anticipator rating: 0.15A to 1.2A
Not compatible with: 3-wire hydronic systems, multi-stage heat pumps, 120V/240V systems, compressor without time delays
Optional wall plate: Part no. MTO84S, 4.75 in x 4.75 in
System compatibility: Most 24V gas, oil, electric heating and A/C, 2-wire hydronic, millivolt, hydronic air handlers, single-stage heat pumps
