Providing Comfort & Efficiency With Small Duct High Velocity Heating & Air Conditioning Systems Presented by:

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1 Unico Presentation Providing Comfort & Efficiency With Small Duct High Velocity Heating & Air Conditioning Systems Presented by: 1

2 Unico Presentation CPD Presentation for SDHV

3 Unico Presentation Title Slide: SDHV Unico Logo and CPD certificate label

4 Unico Presentation Objectives of this presentation Understand the principles of SDHV How SDHV compares to alternative methods: Wall Mount, cassette, radiators, underfloor heating and concealed ducted Advantage that SDHV has to other methods Where we can best use SDHV

5 Learning Objectives Understand the SDHV method of heating/cooling/ventilating See how SDHV compares to: Concealed sheet metal duct Radiators Underfloor Heating Wall mount units Ceiling Cassette Units 5

6 Unico Presentation Burden is on the designers: Fitting the mechanical system in an increasingly limited space

7 Unico Presentation How to take advantage of a limited amount of space

8 Unico Presentation Hot water:

9 Unico Presentation Radiators: Big, cannot supply ventilation or cooling, takes up a lot of space that could be better utilized

10 Unico Presentation Radiators

11 Unico Presentation Underfloor heat: Obviously cannot have cooling or ventilation, expensive

12 Unico Presentation Wall Mount: Big ugly room air conditioners, usually tied to a central system, are drafty and lead to temperature stratification, do not usually use thermostats, but a remote control which is easily misplaced hich is easily lost

13 Unico Presentation Wall Mount Units

14 Unico Presentation Ceiling Cassettes

15 Unico Presentation Ceiling Cassettes, same as wall mount, drafty, take up a large amount of space, usually tied into a larger system

16 Unico Presentation Concealed Sheet Metal Duct

17 Unico Presentation Concealed Metal Duct

18 Unico Presentation Concealed Duct Bulky, takes up three times the space of an SDHV system Drafty, will have streaking of dirt and uneven temperatures Testing and balancing is essential Non-attractive registers and returns 18

19 Unico Presentation 19

20 Unico Provide Presentation an aesthetically pleasing appearance

21 Unico Presentation Most SDHV Systems are Modular 21

22 Unico Presentation

23 Unico Presentation

24 24

25 Typical Registers SDHV Cn 2 & 2.5 inch outlet 4 x 10 Standard Register 3/4 x 8 inch outlet 25

26 Unico Presentation Small Size Means Space Savings

27 Unico Presentation SDHV Basics High discharge temperature for heat pump applications Ability to add auxiliary or supplemental heat with Hot Water Heat Electric Furnace Ability to provide fresh air from outside

28 Unico Presentation Unico System Basics Uses CFM per Ton Refrigeration Coil Higher static pressure (1.2 w.c.) High velocity streams of air Aspiration

29 Unico Presentation SDHV Basics Uses CFM per Ton Refrigeration Coil Higher velocity at outlet Small Ducts Aspiration

30 Typical Main Duct Sizes (3-ton) Three SDHV systems fit inside of one Conventional System SDHV 7.0 Dia. Conventional 8 x 30 Conventional SDHV 3.5 x x inches 20 SDHV 6.5 x

31 Main Duct Types Round Duct Rectangular Duct Square Duct 31

32 Small Branch Ducts Fit 32

33 Unico Presentation Appearance

34 Small Branch Ducts Fit 34

35 Variable Speed A 35

36 Single piece closet unit Saves Money. The variable speed motor is 30% more energy efficient at low speed and 10% more energy efficient at full speed 36

37 Homeowner was able to add a vaulted ceiling. Sloped Outlet 37

38 38

39 39

40 OCTAVE BAND SOUND PRESSURE LEVEL, db re 20 Pa Very Quiet Outlets UnicoSystem Measured Sound Pressure Level in Occupied Space Measured 8' from outlet in 13 x 8.5 typical office. Tested 8/18/87 63 Typical NC rating = db with Attenuator without Attenuator (Aluminum core only) 1k 2k 4k 8k NC-45 NC-40 NC-35 NC-30 NC-25 Vacuum Cleaner Auto (100 ft) Normal Conversation Bedroom Soft Whisper Recording Studio Hearing Limits OCTAVE BAND CENTER FREQUENCY, Hz R /23/94 40

41 SDHV Design Flexibility Most are matched to a typical outdoor A/C to provide cooling Also works with air-cooled or geothermal heat pumps for both cooling and heating Great for zoning with liquid chillers and reverse-cycle chillers Heating options Electric furnace Hot water coil use water heater or boiler Complements radiant floor systems Typical accessories Humidifier Air Cleaners electronic, high efficiency media 41

42 Typical A/C or Heat Pump 42

43 Geothermal Systems 43

44 Typical Accessories 44

45 Residential - Retrofit 45

46 Residential - Retrofit 46

47 Residential New Construction 47

48 Residential - Custom Homes 48

49 Residential - Custom Homes 49

50 Commercial - Offices 50

51 Commercial - Churches 51

52 Commercial Retail Stores 52

53 Commercial Storage Facilities 53

54 Special Applications 54

55 Determine Zones 1400 Btuh 500 Btuh 4000 Btuh 2600 Btuh 4000 Btuh 1900 Btuh 500 Btuh 2400 Btuh 1800 Btuh Cooling Load Btuh Sensible Btuh Total Zone Btuh Sensible Btuh Total Zone Btuh Sensible 6240 Btuh Total Zone Btuh Sensible 7540 Btuh Total 55

56 Typical Return 56

57 Duct Design Layout 1400 Btuh 4000 Btuh 2600 Btuh 4000 Btuh 500 Btuh 1900 Btuh 500 Btuh 2400 Btuh 1800 Btuh Cooling Load Btuh Sensible Btuh Total Zone Btuh Sensible Btuh Total Zone Btuh Sensible 6240 Btuh Total Zone Btuh Sensible Btuh Total

58 The Result Happy customers! 58

59 Recap In this presentation, you learned What an SDHV system is and how it is different from other HVAC systems What the features and benefits are. SDHV applications 59

60 Thank you for your time. 60

61 Unico, Inc Alabama Ave. St. Louis, MO Phone: (800) Fax: (314)

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