Part # M017879450000 REV. July 1, 2011
25
ECOTECH EZ
TM
Variable Speed Motor/Control
How to Lower utility costs with the ecotecH eZ
tm
Variable Speed pool motor/control
Your electric bill is based on the number of Kilowatt’s
used in a typical billing cycle. Each Kilowatt is 1,000
watts. To calculate how much energy your current
pool motor is using and to calculate your savings
potential with the ECOTECH EZ
TM
motor/control, visit
www.nidec-motor.com/pool
and use our energy
calculator. The calculator will show you how many hours
to run your pump each day along with the appropriate
percentage flows for maximum energy savings. Contact
your utility company to determine if there are times during
the day when usage is prohibited, then program your
ECOTECH EZ
TM
motor/control to either not run or to run
at a very low flow rate during these periods.
NOTE: By reducing your speed to 50% Flow, your
horsepower requirement is reduced to 1/8th of the 100%
or Max Flow Hp. The calculation is as follows: (50/100 *
50/100 * 50/100) = .125 or 12.5%. To run the pump at 30%
flow: (30/100 * 30/100 * 30/100) = 0.027 or 2.7% of the
previously used Max Flow Hp. This is a primary advantage
of the ECOTECH EZ
TM
Variable Speed Pool Pump and
Motor/Control! See our energy calculator to determine your
energy savings by reducing the motor/control speed while
enabling the proper amount of daily flow to properly filter
your pool.
General troubleshooting
Also refer to Fault Conditions section on page 24. This chart recommends common answers to electric motor issues.
Refer to your pump manual for hydraulic guidance. When repetitive issues occur, Nidec Motor Corporation recommends
contacting your local pool and spa professional for technical assistance.
Symptom
possible causes
corrective action
Motor/Control
Fails to Start
Blown Fuse or Tripped
Circuit Breaker
Turn off motor/control. Replace fuses with time delay type or reset
the breaker.
Incorrect Voltage to
Motor/Control
Verify motor/control voltage to the terminals match the
nameplate voltage requirements. 207-253 Volts (60 Hertz) is
the allowable voltage range for this product. Is there a timer,
a controller, or a line switch? Are they in the ON position?
Improper terminal
connections
Turn off power. Verify connections are per the nameplate
connection diagram.
Blocked Pump or Shaft
Turn off power. Follow pump manufacturer’s instructions for
dislodging foreign matter inside the pump.
Motor/Control
does not come up
to full speed
Application issue
Call your pool service professional. The motor/control could
be overloaded.
Low Voltage
Verify motor/control voltage to the terminals matches the
nameplate voltage requirements.
Motor/Control
stalls during
operation
Overloaded Motor/Control
Reduce the load or % Pump Flow.
Low Voltage
Verify motor/control voltage to the conduit box connection
terminals matches the nameplate voltage requirements.
Motor vibrates
or is excessively
noisy
Motor and Pump
misalignment
Consult your pump manual for proper alignment instructions
or call your pool service professional. Before taking any
corrective actions, ensure the power is OFF.
High Voltage
Verify motor/control voltage to the terminals matches the
nameplate voltage requirements.
315612_MNJ26_VAR SPD_nonSRVS.indd 25
7/19/11 8:01 AM
