Honeywell pressuretrol l91b manual

 · For a psi control the difference between A-B=psi, B-C psi etc. so the diff between a-c would be + =psi. You want the widest differential (or throtteling range) you can live with. To low causes hunting of the controlled device, to wide causes wider pressure swings. So set point 65 diff set on B. L91 proportioning pressuretrol controllers provide direct control of modulating motors or valves used on automatic burners or steam heating systems. L91B models have adjustable proportioning (throttling) range to allow selection of desired pressure control www.doorway.ructurer: Honeywell. Honeywell L91B - Pressuretrol Controllers, Modulating, 0 psi to 15 psi - Overview: Modulating pressure operating control for regulation of liquid or air and other non-corrosive gases. Features: Use with steam, air, noncombustible gases, or other fluids non-corrosive to the brass or phos-bronze ( psi models) bellows.5/5(1).

View and Download Honeywell L91A product data online. Proportioning Pressuretrol Controllers. L91A control unit pdf manual download. Also for: L91b, L91d. L91B proportioning Pressuretrol Controllers are Series 90 Modulating Pressure Controllers that provide direct control of modulating motors or valves used on automatic burners or steam boiler systems. May be used with steam, air, non-combustible gases, or other fluids non-corrosive to brass or phos-bronze ( psi model) bellows. PressureTrol® Controllers APPLICATION LF PressureTrol® Controllers provide operating control with automatic limit protection for pressure systems of up to kPa, or psi. LT,V PressureTrol® Controllers are for use on oil burner systems for pressures up to kPa or psi. FEATURES • Models available in a series of control.

Honeywell L91B Pressuretrol Proportioning Pressure Controller psi · NEW Honeywell PAB Pressuretrol Controller · HONEYWELL PRESSURETROL. Buy Honeywell L91b Mod Pressuretrol psi - £ UK and Worldwide delivery. Honeywell Part number L91B/U. PDF File: PDF brochure mb. L91B. LF. L91D. The following information is provided on the PA,B,C,D differential range, differential type, manual reset capability.