Advanced Motor Technologies Next Steps ------------------ Commercial Building System Efficiency

1
Advanced Motor Technologies Next Steps
------------------Commercial Building System
Efficiency

• Rob Boteler
• Nidec Motor Corporation
• Representing NEMA
• National Electrical Manufacturers Association

2
Electric Motors Used in Residential and
Commercial Heating and Cooling Systems

• Existing motors used are primarily AC induction
  motors
• Induction motors provide low initial cost, high
  reliability but are not very efficient when
  compared to recent motor advancements ECM
  electronically commutated motor

Market transformation
3

• Energy Efficient
• ECM Motors
• Fractional HP
• Integral HP
• Clean Rooms
• Dormitory
• Food Processing
• Food Service
• Hospital
• Office Buildings
• Prisons
• Military Bases

4
Electronically Commutated Motor

• The ECM motor is a brushless DC, Three - phase
  motor with a permanent magnet rotor. Motor phases
  are sequentially energized by the electronic
  control, powered from a single-phase supply.
• Input power supply 120, 240 or 460 VAC
• Motor control converts AC power to DC power
• Motor control determines speed and torque
  required for programmed operation
• Motor control converts DC power back to
  three-phase power for motor operation

5
Electronically Commutated Motor

• Benefits
• Controllability and Programmability optimize
  system efficiency integrating with other
  components
• Very High System Efficiency Over a Wide Operating
  Range
• Soft ramp up to speed and ramp down
• Negatives
• For Constant CFM units, in restricted system, may
  pull more watts than PSC to overcome static load.

6
ECM Motors Consume 15 20 LESS Energy
-15
Over 20 Savings in Energy Consumption at Slower
Operating Speeds
Wattage((746Horsepower)/ Efficient), 80
Efficiency for ECM, 62 Efficiency for a PSC
7
Programming Tool Provides Motor and Load System
Parameters

• Programming Tool Capabilities
• User Friendly PC Interface
• Programming Initiated With Barcode Scanning
• Log File For Programming Traceability on each
  Motor
• Auto Label Generation
• Hardware Designed For Commercial Building Needs

8
Greater Efficiency Increases Initial Cost
High
ECM 80 Efficiency
ECM 80 Efficiency
ECM 4 Wire 80 Efficiency
Premium Efficient PSC 70 Efficiency
Higher Efficiency
Efficiency
4 Wire Attributes
Permanent Split Capacitor (PSC) 60 Efficiency

• Highest efficiency offering
• Communication technology
• Faster set up and installation
• Precise air flow control

Low
Induction Discrete Speed
BPM - Variable Speed
Price
9
How Can We Benefit From Advanced Motor
Technologies?

• OEMs original equipment manufactures are now
  using ECM motors to meet increased SEER standards
  
• ECM motors allow the OEM to integrate precise
  speed control into the equipment optimizing
  system efficiency and comfort
• ECM motors can also be a retrofit to existing
  HVAC systems providing significant reductions in
  energy use and GHGs emissions
• ECM retrofits require professional installation
  contractors and additional controls

10
User Friendly Software Tools Simplifies OEM Use
of ECM

• Motor Interface
• Reduces OEM System Characterization Time By 80
• PC Capable Only (Windows 98/NT/2000 Compatible)
• Diagnostic / Traceability Of Unit
• Calculator
• Calculates The Constant CFM System Coefficients
• Profile Interface
• Develops Motor Profile Messages For Any System
  Profile
• Can Be Used To Test For System Issues

Furnace or Air Handler
11
How could we accelerate ECM retrofit-fit adoption
rates which save energy?

• Federal incentives
• Tax credits
• Utility rebates
• Federal facilities mandate
• Executive order?
• DOE
• Marketing initiatives?

ideas?
Rob.boteler_at_nidec-motor.com 636-477-6392