Guy de ... - CONTOS FANTÁSTICOS_ O Horla (Guy de Maupassant)
The Architect Outdid Himself. So Did The HVAC Guy. Want To ...
Transcript of The Architect Outdid Himself. So Did The HVAC Guy. Want To ...
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The Architect Outdid Himself.
So Did The HVAC Guy.
Want To Learn How?
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Today’s Presenters
Katrina Yohey Dan DeLand
• Product Manager, Variable Speed -
Air Conditioning
• 10+ Years Experience In Marketing
• 1+ Year With Emerson
• Responsible For Compressor And
Electronics Product Marketing For
Unitary Variable Speed Air
Conditioning Applications
• Senior Project Engineer, Variable Speed -
Air Conditioning
• 8 Years Experience In HVACR Industry
• Responsible For Implementation And
Trouble Shooting Of Unitary Variable
Speed Platforms
• Specializing In Air Conditioning System
Design And Testing
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• What Is A Variable Speed System?
• Variable Speed Technology Benefits?
• Explanation Of How Variable Speed Matches
Building Load Better Than A Traditional System
• Component Changes Of A Typical Variable Speed
System
1
2
3
Agenda
4
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*Typical premium and mid-tier air-to-air profile
System Designs Vary Depending On OEM Specifications
Premium And Mid-tier Examples
Speed Ranges Discrete Speeds Fully Variable
SEER ~16 – 18 ~20+
HSPF 10-11 10-13
Premium System Mid-Tier System
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• What Is A Variable Speed System?
• Variable Speed Technology Benefits?
• Explanation Of How Variable Speed Matches
Building Load Better Than A Traditional System
• Component Changes Of A Typical Variable Speed
System
1
2
3
Agenda
4
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Polling Question:
1. Currently, We Do Not Quote Variable Speed Systems
2. Between 1 – 10 Systems
3. Between 11 – 25 Systems
4. Between 26 – 50 Systems
5. 50+ Systems
On Average, How Many Variable Speed Systems
Do You Typically Quote Per Year?
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Enhanced Energy Efficiency Variable Speed Systems Reduce Energy Costs Up To 40%
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Enhanced Comfort
Decrease Relative Humidity
With Systems That Can
Achieve Longer Run
Cycles
Maintain More Even
Temperature
Reduces Hot / Cold Spots
Temperature
Control Humidity Control
Precise Climate Control
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Enhanced Comfort Hotter Supply Air in Heat Pumps**
Compressor
Design Enables
Heat Pumps to
Supply Hotter Air
During Cold Winter
Conditions
*Some Variable Speed Systems
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•Advanced Connectivity Through Communicating T-stats
•Quiet Operation
– Sound Blankets
– Soft Start
– Controlled Shutdown
•More Effective Zoning
Additional Homeowner Benefits (Not All Systems)
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Polling Question:
1. Currently, We Do Not Sell Variable Speed Systems
2. Between 1 – 10 Systems
3. Between 11 – 25 Systems
4. Between 26 – 50 Systems
5. 50+ Systems
How Many Variable Speed Systems Do You
Typically Install On An Annual Basis?
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• Test Mode For Charging
• Upsell Potential With Higher Value
Product
– Indoor/Outdoor Replacement
• Longer Warranties
• Premium/Advanced Diagnostics
Contractor Benefits
*Adhere To Manufacturers Instructions For Installation
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Diagnostics Increases Reliability
Benefits Category Software / Hardware Features
Compressor Control
Speed / Torque Control
Soft Starting
Controlled Shutdown
Power Interrupt Capacity
Stator Heating
Compressor Protection
Loss of Phase
Over Load/Over Current Condition
Locked Rotor
Scroll/DLT Over Temperature
Input Over/Under Voltage
Compressor Envelope Protection
High Pressure Cutout
Monitor & Diagnosis Status Monitor and Fault Diagnosis
• Protects Compressor And System From Running Outside Of Design Parameters
• Reduced Compressor Cycling Improves Reliability
Common to
Most Drives
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Example: Diagnostics Increases Compressor Reliability
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• What Is A Variable Speed System?
• Variable Speed Technology Benefits?
• Explanation Of How Variable Speed Matches
Building Load Better Than A Traditional System
• Component Changes Of A Typical Variable Speed
System
1
2
3
Agenda
4
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Fixed Speed Vs. Variable Speed Capacity
How Does A Variable Speed System Match Capacity Of The Building?
Aux Heat Zone
Fixed
Speed Cycling
Min Speed
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• What Is A Variable Speed System?
• Variable Speed Technology Benefits?
• Explanation Of How Variable Speed Matches
Building Load Better Than A Traditional System
• Component Changes Of A Typical Variable Of A
Variable Speed System
1
2
3
Agenda
4
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System Designs Vary Depending On OEM Specifications
Premium And Mid-tier Examples
Speed Ranges Discrete Speeds Fully Variable
Indoor Fan Discrete Speeds Fully Variable
Expansion Valve Thermal Electronic
Thermostat 2 Stage or Communicating Communicating
Coil Size Larger Largest
SEER ~16 – 18 ~20+
Premium System Mid-Tier System
*Typical premium and mid-tier air-to-air profile
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Variable Speed Refrigerant Circuit Same as Fixed Speed Applications
Liquid Line Metering Device
(Thermostatic
Expansion Valve)
Suction Line
Evaporator
Condenser
Dis
charg
e L
ine
Compressor
*AC Refrigerant Circuit Example
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System Communication
Motor Drive
VS Compressor
VS Fan & Control
Indoor Unit & Air Handler
Fan
System Control
User Interface (Tstat)
Outdoor Condensing
Unit
Expansion Valve & Control
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System Control Monitors System Operation
System Control Motor Drive / Inverter
Variable Speed Compressor
With BPM Motor
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System Communication
Motor Drive
VS Compressor
VS Fan & Control
Indoor Unit & Air Handler
Fan
System Control
User Interface (Tstat)
Outdoor Condensing
Unit
Expansion Valve & Control
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Minimal Components Differences From
Fixed Speed
Not Required with Variable Speed
Additional Variable Speed Components
Contactor Start Components Run Capacitor Crank Case Heater
Outdoor Controller Filter, Inverter, Choke Sensors
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Summary
Understand The Differences Between Available Systems
- Premium And Mid-tier Variable Speed Systems Vary Dramatically In Design
Consider How Variable Speed Can Satisfy Customer Needs
- Homeowner Benefits: Enhanced Comfort, Energy Efficiency And Reliability
- Contractor Benefits: Built In Reliability, Advanced Diagnostics
Explained system differences Between Variable and Fixed Speed Systems with regards to both operation and their components.
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