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ClimateMaster 2006 Rep Meeting

ClimateMaster 2006 Rep Meeting. ClimaDry ™ Applications Jeff Hammond, Director of Marketing. ClimaDry Applications. What is ClimaDry ™ ?. WSHP Operating Modes. Cooling Dehumidification as a byproduct Typical SHR of 0.72 to 0.78 Heating Some WSHPs have Reheat for Humidity Control

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ClimateMaster 2006 Rep Meeting

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  1. ClimateMaster 2006 Rep Meeting ClimaDry™ Applications Jeff Hammond, Director of Marketing

  2. ClimaDry Applications What is ClimaDry™?

  3. WSHP Operating Modes • Cooling • Dehumidification as a byproduct • Typical SHR of 0.72 to 0.78 • Heating • Some WSHPs have Reheat for Humidity Control • Hot Gas Reheat • Condenser Water Reheat • New Energy Reheat • Electric or hot water • ClimaDry (patent pending) • Modulating condenser water regenerative reheat

  4. Standard WSHP Refrigerant Circuit TXV Air Evaporator Condenser Water RV Compressor

  5. Typical (ON/OFF) Hot Gas Reheat Circuit

  6. Traditional Condenser Water Reheat

  7. ClimaDry Condenser Water Reheat

  8. Low fan speed during dehumidification mode ClimaDry Option Components LAT sensor Reheat coil Space between reheat and evaporator coils to maximize moisture removal Evaporator coil

  9. ClimaDry Option Components Condenser Modulating reheat water valve (with integrated LAT controller) Condenser water regeneration pump

  10. ClimaDry Option Components • DXM Microprocessor Controller • Incorporates reheat control logic • Utilizes standard humidistat, dehumidistat or integrated thermostat to initiate reheat mode (selected by dip switches) • Uses low fan speed during dehumidification mode

  11. Patent Pending ClimaDry Features • 100% reheat • Taps full heat of rejection for reheat as needed • Provides neutral supply air temperature for assured comfort during dehumidification mode • Modulating reheat • precise control of supply air temperatures via integral proportional controller (72 +/- 3F adj) • compensates for variations of EAT or EWT • Simple • Integrated controls requiring only on/off dehumid call • DDC options are compatible • Standard ARI-rated refrigeration circuit • Standard cabinet with factory-installed components • Uses “free” waste heat for reheat • heat of rejection from building water loop

  12. ClimaDry versus the Competition

  13. ClimaDry Applications Why Use ClimaDry™?

  14. U.S. Dew-point Temperatures

  15. ClimaDry Applications • ClimaDry can be applied to most common low SHR applications, such as . . . • High occupancy loads (classrooms, etc.) • High latent loads (locker rooms, spas) • High infiltration loads (entry areas) • Untreated make up air intake (low fractions) • Humid climates • Anywhere humidity is a problem

  16. ClimaDry Applications How is ClimaDry™ Sized?

  17. ClimaDry Reheat Operation • Return air is cooled and dehumidified by the evaporator coil • Supply air is reheated by the hydronic reheat coil to “neutral” conditions • Dehumidification capability is determined by the heat pump latent capacity rating: LC = TC - SC

  18. ClimaDry Operation

  19. ClimaDry Applications How is ClimaDry™ Controlled?

  20. ClimaDry Controls • DXM board has built-in microprocessor control for reheat operation • Cooling takes precedent • Reheat is engaged by … • Dehumidistat • Humidistat • ClimateMaster ATP32U02 thermostat • DDC controls • Units with PSC or ECM operate at lower airflow during ClimaDry operation • Supply air leaves at 72ºF (22ºC) +/- 3ºF (+/-2ºC) • Optional potentiometer allows further adjustment, +/- 3ºF (+/-2ºC)

  21. ClimaDry Control Notes • DXM board required • DIP switches allow choice of dehumidistat or humidistat • Not all integrated t-stats are created the same! • Some thermostats with dehumidification mode only allow dehumidification output in cooling mode (e.g. Carrier Thermidistat) • ClimateMaster ATP32U02 allows reheat operation even when cooling is not required • ClimaDry = Modulating Reheat with ON/OFF control input!

  22. ClimaDry Applications ClimaDry™ Installation

  23. ClimaDry Installation • All components are inside unit • Water piping is the same as any other ClimateMaster unit • Air bleed must be used to purge air from reheat coil • ClimaDry MUST NOT be used for 100% outside applications • Reheat coil could be subject to freezing conditions

  24. ClimaDry Applications ClimaDry™ Availability

  25. In March 1 Commercial Price List and EZ-Order ClimaDry Availability • GCV series • Standard range vertical units for Boiler/Tower applications • GLV series • Large tonnage (6-25 tons) vertical units for Boiler/Tower or Geothermal applications • GS, TS, TT series • Horizontal/Vertical Upflow/Vertical Downflow • R22 (GS) or R-410A (TS/TT) • Extended range (Blr/Twr & Geothermal) • Ultra High Efficiencies • 1.5 to 6 tons

  26. Questions?

  27. ClimateMaster 2006 Rep Meeting ClimaDry Applications Jeff Hammond, Director of Marketing

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