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Partner Training Program Eco-Flow-C Variable Frequency Drive for Commercial Pool and Spa Pumps 1

Eco-Flow-C Partner Training Program

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Page 1: Eco-Flow-C Partner Training Program

Partner Training Program

Eco-Flow-CVariable Frequency Drive for Commercial Pool and Spa Pumps

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Page 2: Eco-Flow-C Partner Training Program

Product Training

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Page 3: Eco-Flow-C Partner Training Program

Eco-Flow-CWhat is a Variable Frequency Drive

Pool Pump motors are supplied with Power comprising an AC (Alternating Current)The supply frequency in North America is 60 Hz (Cycles per second)

60 Cycles per second means that the motor will run at its nameplate speed

One Cycle

The motor’s speed is directly proportional to the frequency supplied

120 cycles per second = 2 x nameplate speed 30 cycles per second = 1/2 x nameplate speed

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Page 4: Eco-Flow-C Partner Training Program

Eco-Flow-CHow does a Variable Frequency Drive work?

Sine Wave Power (AC) 60 Hz

VariableFrequency

Drive

Pulsed Width Modulated output(Variable Frequency)

Supply Voltage

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Page 5: Eco-Flow-C Partner Training Program

Electrical Components of a VFD

DC bus choke

Diodes or SCR’s

Capacitor IGBT’s

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Page 6: Eco-Flow-C Partner Training Program

Eco-Flow-CBenefits of reducing the pump’s speed

The electrical energy consumed by a Centrifugal Pump has a significant relationship to the speed at which it runs.

A small reduction in speed has a huge impact on the energy consumed

Example: Reducing the pump’s speed by just 25% will reduce the energy by 58%

This is the result of the ‘Affinity Laws’

How to calculate the amount of reduced energy:

Take the ‘new’ speed at which the pump could be run, and convert it to a decimal value, i.e., a new speed of 75% of the full speed = 0.75

Cube this speed: 0.75 x 0.75 x 0.75 = 0.42

Energy at 75% speed is therefore 42% of full speed energy

Power demanded by the Pump

Speed %

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Page 7: Eco-Flow-C Partner Training Program

Why reduce the pump’s speed?

• Many pumps are over-sized for the pool to which they are installed

• Running at too high of a flow rate consumes more chemicals, prevents the filter from operating at its optimum performance and reduces equipment life

• State Health Departments mandate pool turnover time

• Some States are considering going to an 8 hour turnover during unoccupied pool times

• Discharge valves are often used to reduce the flow to achieve the required turnover

• Throttling back a discharge valve has minimal effect on reducing electrical energy

• As already seen, reducing the pump’s speed will significantly reduce the energy used

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Page 8: Eco-Flow-C Partner Training Program

Flow Control Options

Operating $

Throttling Discharge Valve

Controlling Pump Speed

Operating $

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Flow Control Valve

Reduce the pump’s speed usinga Variable Frequency Drive

Page 9: Eco-Flow-C Partner Training Program

How much can the pump’s speed be reduced?Step 1 – If there is an existing flow control valve, slowly adjust it to the fully open position

Step 2 – Now make a note of the flow meter reading with a clean filter condition, e.g., 750 GPM

Step 3 – Determine the capacity of the pool, e.g., 225,000 gallons

Step 4 – Divide the pool’s capacity by 360 (min.) to determine the required GPM for a 6 hour turnover, e.g., 225,000 ÷ 360 = 625 GPM

Step 5 – Determine what the required flow rate would be as a decimal of the actual, i.e., 625 ÷ 750 = 0.83

Conclusion: The pump’s speed could be run at 0.83 (83%) of its current speed to achieve the required turnover.

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Page 10: Eco-Flow-C Partner Training Program

Eco-Flow-C How much can be saved?

Example:

Pool Capacity: 160,000 gallonsUtility cost: $0.16 per kilowatt hour (kWh)Pump size: 15 HPRequired turnover per hour: 26,666 (160,000 / 6)Required system flow rate to achieve State mandated turnover: 444 GPM (26,666 / 60)Actual system flow rate with discharge valve wide open: 580 GPMCalculated speed to meet required turnover: 77% (444 / 580) x 100Reduced energy: 0.77 x 0.77 x 0.77 = 0.46 or 46% of the full speed energy (a 54% saving)

Note: Using the discharge valve to reduce the flow would have resulted in a 13% saving

Annual Energy cost without VFD: $17,420

Annual Energy cost using discharge valve to throttle flow rate: $15,172

Annual Energy cost using Eco-Flow-C: $ 7,972

Minimum annual savings: $ 7,201

Typical Return On Investment: Less than 1 year

Note: Utility kWh costs are determined by taking the total utility bill and dividing it by the number of kWh used in the billing period. This method will ensure that all costs including transmission, surcharges and taxes are included.

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Page 11: Eco-Flow-C Partner Training Program

Eco-Flow-CSnapshot

• Variable Frequency Drive for Commercial Pool & Water Feature Pumps

• Available for controlling 1 to 50 HP (standard), up to 600 HP (optional)

• Models for single phase input / 3-phase output

• Indoor and outdoor models

• Array of customized features

• Constant Flow feature

• Integrated Controller in NEMA 1 and 3R models

• Delivery typically 2 to 3 weeks

• 15 month warranty from ship date

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Page 12: Eco-Flow-C Partner Training Program

Eco-Flow-CEnclosure Configurations

NEMA 0

• Stand alone VFD

• No options available

• Designed for installing in ‘clean / dry’

room

• Least likely of all configurations

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Page 13: Eco-Flow-C Partner Training Program

Eco-Flow-CEnclosure Configurations

NEMA 1 (without options)

• VFD installed in a NEMA 1 Panel

• Includes Controller as standard

• Designed for installing in ‘clean / dry’

room

Controller VFD

Intake Filter

Exhaust Vents

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Page 14: Eco-Flow-C Partner Training Program

Eco-Flow-CEnclosure Configurations

NEMA 3R (without options)

• VFD installed in a NEMA 3R Panel

• Includes Controller as standard

• Designed for installing outside

Controller VFD

Intake Filter

Exhaust Vents / Rain Hoods

Drip Shield

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Page 15: Eco-Flow-C Partner Training Program

Eco-Flow-CEnclosure Options

Circuit Breaker

An existing Electrical Disconnect is not situated within line of site of the VFD panel

Circuit Breaker

Required when:

Through the Door Handle OperatorIncluding Lockout facility

Note: Circuit Breaker includes a mechanical lock that prevents the Panel door from being opened when power is turned on

Wiring not shown

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Page 16: Eco-Flow-C Partner Training Program

Eco-Flow-CEnclosure Options

Bypass

The customer would prefer to have a back-up method of running the pump should the VFD fail.

In the event of a VFD failure, the Selector Switch would be moved from the VFD to the Across the Line position

Bypass Contactors

Required when:

Motor OverloadBypass / VFD Selector Switch

A B C

VFD

A

B

C

Wiring not shown

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Page 17: Eco-Flow-C Partner Training Program

Eco-Flow-CEnclosure Options

Lightning Arrestor

The VFD panel is installed in a geographical vicinity that has an incidence of Lightning Strikes.

In the event of a Lightning Strike, the Lightning Arrestor will absorb the high electrical energy that would otherwise destroy the VFD and its Controller.

Required when:

Lightning Arrestor

Wiring not shown

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Page 18: Eco-Flow-C Partner Training Program

Eco-Flow-CEnclosure Options

Line Reactor

VFD’s can transmit Harmonic distortion onto the supply lines. These Harmonics could cause interference to equipment supplied from the same electrical source.

A Line Reactor should be included if the VFD panel is to be installed on the same supply to which sensitive electronic equipment is installed, i.e.,

• Computers

• Radio Equipment

• Electronic Chemical Dosing systems, i.e., PH or ORD systems

Required when:

Line Reactor

Wiring not shown

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Page 19: Eco-Flow-C Partner Training Program

Eco-Flow-CEnclosure Options

Load Reactor

When the VFD panel is to be installed:

• To a non VFD rated Motor

• More than 300 cable feet from the Motor or,

• To 480V supply voltage

Required when:

Load Reactor

Wiring not shown

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Page 20: Eco-Flow-C Partner Training Program

Speed Control

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Page 21: Eco-Flow-C Partner Training Program

Method A – Fixed Speed Control

Integrated Controller is used to setthe pump’s speed for specific times of the day.Up to 2 preset speeds plus a ‘Backwash’ speed can be programmed.

Note: The pump’s speed must never be adjustedto be lower than that required to meet statutoryturnover requirements, i.e., a 6-hour turnover inmost States.

Eco-Flow-C

Supply Voltage

Flow MeterTo Pool

From Pool21

Page 22: Eco-Flow-C Partner Training Program

Method A – Fixed Speed Control(2 programmable speeds)

% Pump Speed

Time

0800 1200 1600 2000 0000 0400

50

70

40

30

20

10

60

80

90

100

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Page 23: Eco-Flow-C Partner Training Program

Method A – Fixed Speed Control(2 programmable speeds)

% Pump Speed

Time

0800 1200 1600 2000 0000 0400

50

70

40

30

20

10

60

80

90

100

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Page 24: Eco-Flow-C Partner Training Program

Backwash Control

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Page 25: Eco-Flow-C Partner Training Program

Manual Backwash

% Pump Speed

Time0800 1200 1600 2000 0000 0400

50

70

40

30

20

10

60

80

90

100Backwash Speed = 100%Backwash Duration = 5 min

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Page 26: Eco-Flow-C Partner Training Program

Automatic Backwash

Automatic Backwash SystemContact closes during backwashVFD accelerates to Backwash speed

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Page 27: Eco-Flow-C Partner Training Program

Method B – Automatic Flow Control (Pressure Sensor)

To Pool

From Pool

Flow Meter

Supply Voltage

Pressure Sensor

Eco-Flow-C

4-20mA signal proportional to pressure

As the filter gets dirty:Discharge Pressure drops & Eco-Flow-C automaticallyincreases the pump’s speed to maintaina constant flow

Note:The pump’s speed must never be adjusted to be belowthat required to meet a States mandated turnoverRequirements, i.e., a 6-hour turnover in most States

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Page 28: Eco-Flow-C Partner Training Program

Method B – Automatic Flow Control (Flow Sensor)

To Pool

From Pool

Flow Meter

Supply Voltage

Flow Sensor

Eco-Flow-C

4-20mA signal proportional to flow

As the filter gets dirty:Discharge Flow drops & Eco-Flow-C automaticallyincreases the pump’s speed to maintaina constant flow

Note:The pump’s speed must never be adjusted to be belowthat required to meet a States mandated turnoverRequirements, i.e., a 6-hour turnover in most States

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Page 29: Eco-Flow-C Partner Training Program

Methods B & C - Maintaining Constant Flow (Auto Flow Control)

% Pump Speed

Time0800 1200 1600 2000 0000 0400

50

70

40

30

20

10

60

80

90

100

Pump Speed increases as filter becomes dirty and filter discharge pressure or flow decreases

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Page 30: Eco-Flow-C Partner Training Program

Methods B &C - Maintaining Constant Flow (Auto Flow Control)

% Pump Speed

Time0800 1200 1600 2000 0000 0400

50

70

40

30

20

10

60

80

90

100

Pump Speed increases as filter becomes dirty and filter discharge pressure or flow decreases

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Page 31: Eco-Flow-C Partner Training Program

Maintaining Constant Flow during the dayand

Fixed (low) Speed at night

% Pump Speed

Time0800 1200 1600 2000 0000 0400

50

70

40

30

20

10

60

80

90

100

Automatic Flow Control

Fixed Speed Control

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Page 32: Eco-Flow-C Partner Training Program

Pressure

Pump Speed

Constant Flow

Maintaining Constant Flow (Auto Flow Control)

To Pool

From Pool

FILTER

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Page 33: Eco-Flow-C Partner Training Program

Control Summary

Method Speed Control Method Timed Start / Stop

Manual Backwash

Automatic Backwash

A Fixed Speed • • •

B Constant Flow – with Pressure Sensor • • •

C Constant Flow – with Flow Sensor • • •

D Constant Flow with Timed Fixed Speed • • •

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Page 34: Eco-Flow-C Partner Training Program

Channels to Market

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Page 35: Eco-Flow-C Partner Training Program

Channel to Market

End User

H2flow Controls

Channel Partner

H2flow Representative

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Page 36: Eco-Flow-C Partner Training Program

Channel Partner Requirements

Review Handout

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