Energy-efficient pumps: fast facts and figures


By Alice Richard
Saturday, 28 February, 2015



Energy-efficient pumps: fast facts and figures

For a potential client who’s already wary of the cost of installing a pool, the prospect of also paying a fortune for electricity can be enough to put them off forever. Suggesting an energy-efficient pump could be key to helping you win that client over - for several reasons.

Not only do they use less energy when set to low speed, but this also lowers the flow rate. A lower flow rate takes the pressure off the pool plumbing and other equipment, increasing service life and further reducing costs. This also improves filtration efficiency and enables automatic chemical dosers and salt chlorinators to operate more effectively - saving on maintenance costs for your client.

Here, we look at some fast facts about six energy-efficient pool pumps currently on the market to help you make a decision about what to offer your clients.

AstralPool Viron P320 eVo energy efficient pump

AstralPool Viron P320 eVo energy-efficient pump

Energy efficiency rating: 8 stars

Flow/pressure rates: Low speed: 121 L/min at 2.6 m head; medium speed: 212 L/min at 8.1 m head; high speed: 252 L/min at 11.4 m head

Warranty: 3 years

Features:

  • In-built 24 h timer provides up to four time periods each day with different speed settings.
  • Has a flow rate sufficient to backwash up to 30″ or 800 mm diameter sand filters, provide a powerful vacuum and drive up to six spa jets.
  • Fully variable speed from 600 to 2850 rpm.
  • 316 stainless steel hardware fasteners and high-temperature engineering plastics.
  • Large liquid crystal display shows rpm of the motor and enables adjustment of the start-up priming time, priming flow rate and visual display of each speed setting.
  • Energy consumption is 374 kWh per annum.
  • All speeds fully variable to allow tuning to individual pool requirements to minimise energy consumption.

Davey PowerMaster ECO series pump.

Davey PowerMaster ECO series pump

Energy efficiency rating: 8 stars

Pressure/flow rates: Up to 370 L/min at 18 m head

Warranty: 3 years

Features:

  • Three-speed brushless DC motor.
  • Three fully programmable speeds in 50 rpm increments: ECO flow (low speed for filtration), Mid Flow (pool cleaning) and High Flow (all other sanitisation and heating applications).
  • Quiet operation at 60.5 dB.
  • Corrosion-resistant, UV-stabilised materials. Enclosure is IP24 rated.
  • Auto reset thermal protection to prevent motor overheating.
  • 40 or 50 mm ABS quick-coupling barrel unions for easy connection and installation.

Emaux E-Power EPV variable speed pump

Emaux E-Power EPV variable speed pump

Energy efficiency rating: 8 stars

Flow/pressure rates: 122 L/min at 2.7 m head (EPV150 max flow 509 L/min, EPV300 max flow 660 L/min)

Warranty: 3 years for pump and motor against faulty parts or workmanship; 1 year mechanical seal

Features:

  • Two models available: the 1.1 kW EPV150 and the 2.2 kW EPV300.
  • Four-speed variable speed pump, adjustable to suit users’ requirements.
  • Three separate programming schedules.
  • Pulsating setting for water features and fountains.
  • Pump has dry run protection in case of no flow.
  • Energy consumption of the EPV150 is 418 kWh per year.

Pentair Sta-rite enviroMAX 1100 variable speed pump

Pentair Sta-rite enviroMAX 1100 variable speed pump

Energy efficiency rating: 8 stars

Flow/pressure rates: over 500 L/min at 5 m head

Warranty: 3 years

Sound levels: High - 69 dB; medium - 63 dB; low - 57 dB; override - 73 dB

Features:

  • 1100 W, radial flux, brushless permanent magnet motor, which is serviceable.
  • Four programmable speeds with step advance feature that lets users select a duration for each speed setting. The pump automatically switches to the next speed/step after the time is up, enabling fine-tuning of the filtration and circulation.
  • Digital inputs for automation control.
  • IP25-rated durable thermoplastic composite resin construction designed to withstand harsh conditions.
  • Cam and Ramp lid is easy to remove and locks in place with a quarter turn.

Poolrite SQ Gemini twin speed pump

Poolrite SQ Gemini twin speed pump

Energy efficiency rating: 7 stars

Flow/pressure rates: Low speed: 200 L/min at 4 m head; high speed: 400 L/min at 17 m head

Warranty: 1 year electronics; 2 years motor; 10 years pump housing

Features:

  • Ability to run pump during off-peak electricity times.
  • Remote control included as standard.
  • Powered by a traditional induction motor. Most other energy-efficient pumps are DC. The Gemini Twin is a standard AC electric motor with high- and low-speed winding.
  • Safe-T-Lok enabled: pump can be stopped immediately via the remote control in an emergency.
  • Quiet operation in all installations.
  • Australian designed and manufactured.

Waterco Hydrostorm ECO-V 150 pool pump

Waterco Hydrostorm ECO-V 150 pool pump

Energy efficiency rating: 8 stars

Flow rates: 121 L/min energy rating flow rate

Warranty: 3 years

Features:

  • Variable permanent magnet brushless DC motor.
  • Low-speed setting reduces vibration, motor noise and water turbulence to operate as quietly as 55 dB.
  • Has three factory-set speed options - ECO (low), MED and HIGH - but can be adjusted in 25 rpm increments to fine-tune the motor speed to match flow requirements.
  • High-grade carbon/graphite mechanical seal with 316 stainless steel spring assembly.
  • Strong, single-piece, glass-filled thermoplastic pump body that is UV stabilised and corrosion resistant. The variable 3-speed control panel is IP55 rated.
  • Motor protection bracket adds a 61 mm separation between the pump wet end and motor. The bracket has larger drain holes for improved draining of any water leaks due to long-term usage of the main mechanical seal.

Zodiac FloPro ePump variable speed pump

Zodiac FloPro ePump variable speed pump

Energy efficiency rating: 7 stars

Flow/pressure rates: Over 450 L/min at 20 m head

Warranty: 3 years (2 years on mechanical seal)

Features:

  • Easily adjustable and customisable 8-speed controller with timer.
  • Suitable for domestic swimming pools up to 120,000 L.
  • Can be synchronised with automation devices such as Aqualink RS OneTouch Compact remote control display and Aqualink RS PDA Wireless handheld control.
  • Totally enclosed, fan-cooled, permanent magnet brushless DC motor. Pump is constructed of corrosion-resistant materials.
  • At half speed, the FloPro generates about the same noise as a standard refrigerator.
  • Efficient, totally enclosed fan cooled (TEFC) motor. To calculate the FloPro’s energy and cost savings, visit www.zodiac.com.au/pump-calculator.

Image credit: ©iStockphoto.com/Iaroslav Danylchenko

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