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Eugene Water & Electric Board - PowerPoint PPT Presentation
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Eugene Water & Electric Board. Review Recommendations for Premium Western Economizer. Primary sensor control location Two-stage thermostat & coordination Differential dry-bulb outside air changeover Adequate air flow and exhaust relief Ventilation control Quality Assurance.
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Presentation Transcript
Premium Ventilation
Review Recommendations for Premium Western Economizer
- Primary sensor control location
- Two-stage thermostat & coordination
- Differential dry-bulb outside air changeover
- Adequate air flow and exhaust relief
- Ventilation control
- Quality Assurance
Premium Ventilation
Desired Sequence
- Min OSA ventilation during heating
- Use ventilation before cooling
- Use full OSA vent with cooling coil
- Lock out or Change over from ventilation to minimum when OSA too warm
Premium Ventilation
Premium Ventilation
- Start with a Western Premium Economizer
- Upgrade the Economizer module with
- DCV capable economizer control module
- CO2 Sensor; Min air set to 0% = leakage
- Add variable speed fan motor
- Full (or near full) speed in heating or cooling
- Low (30%) speed in idle mode
Premium Ventilation
Triple the Savings
- Premium Economizer Savings, plus
- Fan savings when not heating or cooling
- Savings during warm-up by reducing ventilation when not occupied
- Ventilation heating and cooling savings when building not fully occupied
- No need to set and measure outside air minimum
Premium Ventilation
Regional Savings
Premium Ventilation
New Units or Retrofit
- Retrofit VSD Options
- ICM CC750
- Fan Handler
- Both use temperature control strategy
Premium Ventilation
Currently Custom Incentives
- Move towards rebate approach
- Two contractors have proposals for work
- New Construction and Replacement market
Premium Ventilation
