General
L404F PressureTrol® Controllers provide operating control with automatic limit protection for pressure systems of up to 2070 kPa, or 300 psi.
L404T,V PressureTrol® Controllers are for use on oil burner systems for pressures up to 1035 kPa or 150 psi.
Features
- Models available in a series of control ranges, and pressure scales in kPa and psi.
- All models automatically reset and have an adjustable differential.
- Models have snap switch to open or close a circuit on a pressure rise.
- Case has a clear plastic cover so setpoints can be observed.
- 1/4 inch—18 NPT connection for pipe on diaphragm assembly.
Specifications
- Make: Honeywell
- Model: L404T1055
- Operating Ranges: 5 to 50 psi
- Subtractive Differential: 6 to 14 psi
- Pressure Sensing Element: Stainless steel diaphragm (140 to 2070 kPa models) has brass bellows.
- Maximum Ambient Temperature: 66°C (150°F). Also, refer to note under Mounting.
- Adjustment: Screws on top of control case. Scales are marked in psi or kPa.
- Mounting: 1/4 inch-18 NPT connection on diaphragm assembly; or surface mounts using holes in back of case.
- Switching Action: Snap switch breaks R-B (closes R-W) on pressure rise. Make-on-rise devices omit terminal B.
- Grounding: Ground screw terminal marked with a circled ground symbol.