OWNER’S MANUAL Multi-Stage Deep Well Jet Pumps 40 20 60 80 100 “MS” Series 293 WRIGHT STREET, DELAVAN, WI 53115 WWW.STA-RITE.COM PH: 888-782-7483 © 2012 Pentair, Ltd. All Rights Reserved.
Safety 2 READ AND FOLLOW SAFETY INSTRUCTIONS! This is the safety alert symbol. When you see this symbol on your pump or in this manual, look for one of the following signal words and be alert to the potential for personal injury: warns about hazards that will cause serious personal injury, death or major property damage if ignored. warns about hazards that can cause serious personal injury, death or major property damage if ignored.
Table of Contents 3 Page General Safety .....................................................................................................2 Warranty..............................................................................................................3 Installation ........................................................................................................4-7 Electrical ...........................................................................................................
Installation 4 Dirt and Scale Plug Pump and Pipes! BEFORE YOU INSTALL YOUR PUMP NOTICE: For proper performance, pump MUST be matched to ejector and to well depth. Use shallow well installation for wells up to 25 ft depth to water and deep well ejector for depths up to 130 ft. Step 1. Long runs and many fittings increase friction and reduce flow. Locate pump as close to well as possible: use as few elbows and fittings as possible. Use New Pipe for Best Results. Step 2. Be sure well is clear of sand.
Installation 5 PIPING IN THE DEEP WELL Pump See Figures 7 and 8. Gasket Adapter Flange NOTICE: Deep well installations are either single pipe (2” wells) or double pipe (4” and larger wells). In a double pipe installation, the larger pipe is the suction pipe and the smaller pipe is the drive pipe (very deep wells may use suction and drive pipes of the same diameter).
Preparing to Start the Pump – Deep Well Installation 6 SINGLE PIPE EJECTOR INSTALLATION Pump mounted on Casing Adapter Single pipe installations require (see Figure 8): a. Galvanized steel pipe b. Leather packer-type ejector with built-in foot valve c. Turned couplings (supplied with packer-type ejector) d. Well casing adapter. Step 1. Connect ejector to first length of pipe. Use pipe joint compound sparingly on male threads. Casing Adapter (Use gasket between adapter and pump flange) Step 2.
Installation 7 PRESSURE TANK INSTALLATION – DEEP WELL Standard Tank Air Volume Control (AVC) Pressure Regulator 1" Discharge Relief Valve AVC Port AVC Tubing Well Seal Figure 9: Pump With Standard Tank The Pressure Tank provides a reservoir of water under pressure and maintains cushion of air pressure to prevent pipe hammering and possible damage to plumbing components. When water is drawn off through house fixtures, the pressure in the tank is lowered and the pressure switch starts the pump.
Electrical 8 Disconnect power before working on pump, motor, pressure switch, or wiring. Your Motor Terminal Board (under the motor end cover) and Pressure Switch look like one of those shown below. Convert to 115 Volts as shown. Do not change motor A 230V 115V 230V 115V 230V 115V 230V 115V 230 Volt to 115 Volt Conversion. Move plug to change voltage. Ground Screw 230 V 115 V L2 A wiring if line voltage is 230 Volts or if you have a single voltage motor.
Electrical 9 Connection Procedure: Step 1. Connect the ground wire first as shown in Figure 12. The ground wire must be a solid copper wire at least as large as the power supply wires. Step 2. There must be a solid metal connection between the pressure switch and the motor for motor grounding protection. If the pressure switch is not connected to the motor, connect the green ground screw in the switch to the green ground screw under the motor end cover.
Operation 10 PRIMING THE PUMP NEVER run pump dry. Running pump without water may cause pump to overheat, damaging seal and possibly causing burns to persons handling pump. Fill pump with water before starting. 40 60 20 80 100 NEVER run pump against closed discharge, to do so can boil water inside pump, causing hazardous pressure in unit and possibly scalding persons handling pump. NOTICE: Open water system faucets before priming pump for the first time. Figure 13A: Close Regulator Step 1.
Operation 11 40 60 20 80 100 Figure 14A: Open Regulator Valve 20 Step 5. Pump may draw well down far enough at this point to lose its prime. If so, close regulator valve until pressure is stable throughout pumping cycle. Close faucets and allow pump to pressurize tank and shut off. Step 6. Check system by alternately opening and closing faucets in the system. With faucets open, pressure will drop until pump starts; with faucets closed, pressure will build up until pump shuts off. 60 40 Step 4.
Maintenance 12 PUMP DISASSEMBLY/ASSEMBLY Step 1. Pull disconnect switch. Disconnect power lines from pressure switch. Step 2. Remove the two cap screws holding the pump to the flange adapter. Do not disturb the piping in the well. Step 3. Remove the flange adapter gasket and scrape the surfaces clean. Step 4. Leaving the tubing in place, unscrew and remove the straight barbed fitting at the pressure switch. Figure 16 Step 5.
Maintenance 13 Step 3. Make sure that the shaft keys are in place on the shaft. If they are not, squeeze them in place now with slip joint pliers. Do not tap them or hit them with a hammer; you could bend the shaft (see Figure 21). When the keys are correctly installed, the adapter will pass over the keys without interference. Step 4. Carefully slide the adapter over the shaft (see Figure 22). Do not damage the shaft sealing surface; it is highly polished and any slight scratches or nicks will ruin it.
Troubleshooting SYMPTOM Motor will not run Motor runs hot and overload kicks off Motor runs but no water is delivered* * (NOTICE: Stop pump; then check prime before looking for other causes. Unscrew priming plug and see if water is in priming hole). 14 POSSIBLE CAUSE(S) CORRECTIVE ACTION Disconnect switch is off Fuse is blown or circuit breaker tripped Starting switch is defective Wires at motor are loose, disconnected, or wired incorrectly Be sure switch is on.
Repair Parts 15 40 20 60 80 100 Repair Parts – Multi-Stage Jet Key No. Part Description 1 1 1A 2 3 4 5 6 7 7A 8 9 9 10 11 12 12 13 14 15 16 16A 16B 16C 17 18 18A 18B 19 20 20 Motor-115/230V Single Phase Motor-230V Single Phase Motor Canopy Connector Locknut - 1/2” Pressure Switch Barbed Fitting - Straight Switch Tube - 14-1/2” Pressure Regulator Assembly Pressure Gauge Barbed Fitting - Elbow Adapter (-6 Series) Adapter (-7 Series) Capscrew - 3/8”-16x1-1/4” Lg.
Repair Parts 16 1 Item 1-Remove paper backing form gasket before applying. 2 Item 2-Align locating lug on flange with locating lug on base volute. 9 8 4 7 40 20 10 60 80 6 100 5 3 2E 2F 3 2D 2C 2B 2 2A 1A Adapter Flange – (Not included with pump) Key No. 1 Pressure Regulator Key No.
