ETA-75C-900 ETAPUMP Solar Powered Submersible Water Pump Integrated System

direct photovoltaic PV-powered, for Deep well pumping, Irrigation, Livestock watering

An ETAPUMP INTEGRATED SYSTEM is a complete system kit, engineered for the lift and daily volume for applications such as pressurized and non-pressurized irrigation, deep well pumping and livestock watering. The pump has only one moving part, no failure-prone diaphragms or brushes to replace. ALL electronic control parts are above ground for easy access and greatest reliability.

ETAPUMP eliminates the costs of fuel delivery, engine maintenance, and pollution.

In many cases the ETApump is LESS COSTLY than a conventional pump and generator installation!

• Great reliability and life expectancy
• Only one moving part, brushless motor
• High resistance to sand and corrosion
• Fits 4inch and larger well casings

HIGH EFFICIENCY = LOWER COST

ETA is a Greek letter that engineers use to represent ENERGY EFFICIENCY.

In solar pumping, HIGH ETA = LOW SYSTEM COST, but most of the cost is for electric generation (photovoltaic) panels.

ETAPUMP uses a solar array of 20% to 50% less power than other solar pumps, to do the same work. It is the most economical solar submersible pump available today.

RELIABLE AND MAINTENANCE-FREE

ETAPUMP has only one moving part. No failure-prone diaphragms or motor brushes to replace.

The controller is above ground for easy access and greatest reliability. Be cautious of solar pumps with controls sealed inside the motor. If one tiny part fails, the pump must be pulled and the whole motor may need replaced.

ETAPUMP INTEGRATED SYSTEM™ is complete and ready to install

An ETAPUMP INTEGRATED SYSTEM is a complete system kit, engineered for the lift and daily volume that you require. It includes premium crystalline UL-listed solar modules (panels) with a life expectancy beyond 30 years. The fixed solar array rack is engineered for 90 MPH (145 km/h) wind, tracked rack is for 75 (120 km/h). The controller is weather-sealed for all climates.

SYSTEM INSTALLATION

Install the pump by the same methods and materials used for conventional submersible pumps. The solar array requires nuts-and-bolts assembly and standard wiring practice. The ETAPUMP instruction manual is clearly illustrated. No special product training is required.

ETAPUMP INTEGRATED SYSTEM

Components vary according to the system number

ETAPUMP INTEGRATED SYSTEM INCLUDES

• Pump
• Pump controller
• Solar modules (panels)
• Solar array mounting rack (top-of-pole)
• Junction box with internal PV disconnect switch
• Flexible conduit, junciton box to controller, prewired
• Submersible cable splice kit
• Low-water probe
• Complete illustrated instruction manual

The following items are not included, but usually available from local suppliers.

• Steel pole and concrete to support the solar array (schedule 40 pipe, size and length specified in the rack instructions)
• Drop pipe (refer to a pipe sizing chart)
• Submersible pump cable, 3-wire plus ground
• Water well safety rope (1/4 inch)
• Wire and standard electrical hardware

Deep Well applications

ETAPUMP can be submersed as deep as necessary.

Surface Water applications

ETAPUMP can be installed in a stream, pond, tank or shallow well, in any position. There is no need for a pump house or for periodic priming.

Dry Run protection

A low water sensor (included) turns pump off to prevent dry-run damage. Reset is automatic after 20 minutes. The controller has an RPM limit adjustment to reduce the maximum flow rate to about 50%, tohelp match a limited water source.

Sand and Silt tolerance

ETAPUMP has high resistance to wear from sand, clay, etc. that may occur in a properly constructed water well. However, a concentration of solids greater than 2% (by volume) may cause blockage in the pump or the drop pipe, especially at low flow rates. Do not use ETAPUMP to clean out a dirty well.

Controller Display

Lights idicate: System on, Pump on, tank full, water source low, overload, and battery low (battery models only).

Storage Requirment

A storage tank (not included) should be sized to supply a minimum of 5 to 10 days' water supply, depending on climate and application. Water storage is generally more economical than energy storage in batteries.

Battery Systems

ETAPUMP battery versions are appropriate for pressurizing systems or where a storage tank is not desirable. They use a different controller than solar-direct systems. Voltages: 24V and 48V. Request a Battery System Performance Table.

Pipe sizes

Models ETA-75C, ETA-14, and ETA-20 have 1 1/4inch outlet. Others have 1inch outlet. Drop pipe larger than the outlet is not recommended because sand may accumulate during low flow. For sizing of long pipelines, consult a pipe sizing chart.

Dimensions and weights

Pump and motor

• Diameter: 3.78inch(96mm)
• Height: 20inch to 32inch (500 to 800mm) depending on model
• Weight: 25lbs (11.5kg) or less, depending on model

Controller and Junction PV-Disconnect Box

• Controller: 17 x 7 x 6inches (425 x 175 x 150mm)
• Junction box: 10.2 x 7.1 x 4 inches (260 x 180 x 100mm)
• Flex conduit and wiring harness, length: 35 inches (90cm)
• Junction box 3 conduit holes: two 3/4inch and one 1 1/4inch (28 and 45mm)
• Wire size capacity of pump terminals in j-box: No.6
• Weight, controller and junction box: 14.5 lbs (6.6 kg)
• Enclosures: gasket-sealed, weatherproof

SOLAR ARRAY: Size and weight can be estimated from the array watts. Watts is the last 3 digits of the system number.

• Approximate area in sq.feet = watts/10 (sq.m=watts/100).
• Approximate weight (including mounting rack) in lbs = watts x 0.3 (kg =watts x 0.14) Tracker option adds approximately 20% to the weight.

Wetted Materials

304 and 316 stainless steel, brass (check valve only, 2% Pb), chromium, NBR rubber, natural rubber, polyurethane, POM.

Temperature Limits

• PUMP: The optimum water temperature is 46°F to 72°F (8°C to 22°C). Higher temperatures may cause the pump to stop temporarily due to expansion of the rubber stator. Pumps with higher and lower temperature ranges are available by special order.
• CONTROLLER: Ambient air -22°F to 113°F (-30°C to 45°C

Weight is estimated base on module or rack type.

Accessories

• FLOAT SWITCH for full-tank shutoff,Item No.10320
• FLOAT SWITCH CABLE (18 AWG, shielded, burial, UV for max. 2,000ft from pump controller to switch) Item No.10326
• LOW WATER SENSOR WIRE No.16 AWG submersible, 1-conductor, type TFF. Two wires required. Order twice the length from controller to pump. Item No.11421
• AC POWER PACK for 115/230VAC backup, Item No.11930

Manufacturers warranty: 4 YEARS for pump and controller when purchased as part of an ETAPUMP Integrated System™. Solar modules 20 or 25 years.