Specifications include, but are not limited to: 1. STEP SYSTEM PACKAGE a. STEP Sewer Service Packages shall be as shown on Drawings Sheets C5.1, C5.2, E1.1 and E1.2, and as specified herein. b. Furnish a complete factory-built and tested STEP Sewer Service Package, including STEP Tank, Pump Vault, Effluent Filter, Level Control Float Assembly, Effluent Pump, Check Valve, Cold Weather Discharge Assembly with EZ-Pull Quick Disconnect or State approved equivalent, External Electrical Splice Box. 2. PUMPS a. Pumps shall be as indicated on the Drawings and as specified herein. b. Pumps must be approved for use in pump vault as described in these specifications or State approved equivalent. Pump shall be 1/2 to 1.5 hp, 115/230 VAC, single phase, 60 Hz, two-wire motor, with 10-foot-long extra heavy duty (SOOW) electrical cord with ground. The pumps must be submersible High-Head Effluent pumps. Pumps shall be UL and CSA listed for use with effluent. The pumps must have a minimum 24-hour run dry capability without water lubrication. The pumps shall have a 1/8-inch bypass orifice to ensure flow circulation for motor cooling and to prevent air bind. The pump shall have a floating impeller design to protect against up thrust and increase pump life. The pump liquid ends must be repairable (by replacing impellers and/or diffusers) for better long-term cost of ownership. The motor must be rated for continuous use and frequent cycling, at least 100 cycles per day. The motor cable must be suitable for Class 1, Division 1 and 2 applications. The pumps shall be lightweight for easy removal and maintenance. The pump intake screen must be 1/8-inch mesh polypropylene. The pump shall have internal thermal overload protection and internal lightning protection. All pumps shall undergo 3-point (Dead head, Design Flow, and Design Flow + 30%) wet testing at the factory to confirm performance. 3. FLOAT SWITCH ASSEMBLY a. Float switches shall be mercury-free Orenco Systems®, Inc. Model MFPB or State approved equivalent with two mechanical switch floats mounted on a PVC stem attached to the filter cartridge. The floats must be adjustable and must be removable without removing the pump vault. The high-level alarm and on/off function shall be preset as shown in the attached plans. Each float lead shall be secured with a nylon strain relief bushing at the splice box. The on/off float shall be rated for a minimum of 5.0A @ 120 VAC.
