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Nortec NHTC, NHPC manual Steam Distributors Asd, Bsd, Csd, 10-10, A.Steam Distributors, Page 37

Models: NHPC NHTC

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4.STEAM DISTRIBUTORS (ASD, BSD, CSD)

4.STEAM DISTRIBUTORS (ASD, BSD, CSD)

A.STEAM DISTRIBUTORS

(1)NORTEC’s steam distributors, in use for over twenty years, are a proven design to suit applications for the introduction of atmospheric steam.

(2)Features and benefits of steam distributors are:

(a)Expanded diameter of tube to reduce steam velocity and the potential for condensate carryover into the duct.

(b)Positive removal of condensate.

(c)Lower mass of metal (stainless steel), which reduces ‘radiator effect and condensate’ and results in higher efficiency of humidifier output while reducing condensate formation.

(d)Designed specifically for atmospheric steam generation.

(e)Modular so that the exact quantity of distributors can be configured to meet specific application requirements. This reduces system complexity and installation costs.

B.DISTRIBUTOR CHARACTERISTICS

(1)NORTEC steam distributors are constructed of stainless steel and include in low point condensate return to prevent the condensate from collecting in the steam distributor. This enables entrained condensate to settle to the bottom of the steam distributor where it is removed by the condensate return. These features allow the NORTEC steam distributors to be installed level in the duct, thereby utilizing the full available width of the duct. (See Figure 10.)

Figure 10. Levelling the Distributor

10-10

Page 37 2008-10-01

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Nortec NHTC, NHPC Steam Distributors Asd, Bsd, Csd, 10-10, A.Steam Distributors, B.Distributor Characteristics, Page 37

Contents

NHTC / NHPC ELECTRODE STEAM HUMIDIFIER NH SeriesTMEngineering Manual 2538144-BPROPRIETARY NOTICE SPECIFICATION LABEL LOCATIONLIABILITY NOTICE COPYRIGHT NOTICE10-00ELECTRODE STEAM ENGINEERING TABLE OF CONTENTS10-10HUMIDITY, STEAM ABSORPTION AND DISTRIBUTION SubjectWARRANTY 10-20SPECIFICATIONS10-30SUBMITTALS Subject10-00ELECTRODE STEAM ENGINEERING LIST OF FIGURES10-10HUMIDITY, STEAM ABSORPTION AND DISTRIBUTION FigureFigure 10-30SUBMITTALSFigure 2008-10-0110-00ELECTRODE STEAM ENGINEERING LIST OF TABLES10-10HUMIDITY, STEAM ABSORPTION AND DISTRIBUTION 10-30SUBMITTALS2008-10-01 Table 13. Modulating Demand Signal By Others Single Channel. . . . . . . . . . . . . . . . . . .10-00 INTRODUCTION 10-00Page 10-00 Figure 1. NHTCPage 2 1. INTRODUCTION 10-00Page 3 Page 4 10-00Figure 2. Optimum Boiling Time 10-00Figure 3. Conductivity Page 510-00 B.NH CAPACITY ADJUSTMENTC.DRAIN CYCLE AND CYLINDER LIFE 1Water Type Used Potable or Softened1.Fill to A trigger use all places below 10-00Figure 6. Output vs Service Life Figure 5. Capacity Setting & Cylinder Life10-00 Page 83.PRE-INSTALLATIONEQUIPMENT VERIFICATION 10-00A.GENERAL Figure 6. Typical NHRS Installation Sheet 1 of 10-00Page 10 Figure 7. Typical NHRS Installation Sheet 2 of 10-00Page 11 10-10 HUMIDITY STEAM ABSORPTION AND DISTRIBUTION 10-10Page 12 1. HUMIDITY HUMIDITY, STEAM ABSORPTION AND DISTRIBUTIONC.TEMPERATURE AND HUMIDITY REQUIRED D.TEMPERATURE AND HUMIDITY AVAILABLE10-10 Outdoor temperatureTable 2. Load Calculation Summary Sheet Page 14E.INCOMING AIR VOLUME 10-10Page 15 Table 4. Design Outdoor Conditions 10-10Page 16 JANUARYTable 4. Design Outdoor Conditions cont 10-10Page 17 JANUARYTable 4. Design Outdoor Conditions cont 10-10Page 18 JANUARYPage 19 10-10Page 20 10-10Page 21 10-1010-10 Table 6. Regain of Hygroscopic MaterialsPage 22 Page 23 10-10Page 24 10-10Page 25 10-1010-10 TemperaturePage 26 Product and/or ProcessFigure 2. Psychrometric Chart 10-10Page 27 10-10 2.STEAM ABSORPTION AND DISTRIBUTIONA.VARIABLES THAT AFFECT ABSORPTION DISTANCES Page 2810-10 Figure 3. Steam Distributor LocationPage B.CALCULATING THE DOWN STREAM HUMIDITY LEVEL 10-102The following are two examples: Example Page 30C.CONTROL OF DUCT OR PLENUM SATURATION 10-10Figure 4. Condensate Drain Pan Page 3110-10 3.STEAM RUNS AND CONDENSATE RETURNSA.STEAM RUNS Figure 5. Proper Slope10-10 Table 11. Steam Line MaterialPage 33 B.CONDENSATE RETURN 10-10Page Unit SizeFigure 8. Condensate Tee At Any Low Point 10-10In Steam Line Figure 7. Steam Line ConnectionPage 36 10-10B.DISTRIBUTOR CHARACTERISTICS 4.STEAM DISTRIBUTORS ASD, BSD, CSD10-10 A.STEAM DISTRIBUTORSC.DISTRIBUTOR LOCATIONS AND MOUNTING 10-10D.MULTIPLE DISTRIBUTOR APPLICATIONS Page 38Figure 12. Cutting Duct For Mounting 10-10Figure 13. Humidification Distance Nomogram Page 39F.DISTRIBUTOR ABSORPTION DISTANCE 10-10Figure 14. Best Location for Multiple Steam Distributors in AHU10-10 H.DISTRIBUTOR DIMENSIONSG.TYPICAL APPLICATIONS Figure 15. Roof Top Units 2-20Tons –10-10 5.SHORT ABSORPTION MANIFOLD SAM-eA.GENERAL Figure 17. SAM-eTubes10-10 B. DETERMINING THE STEAM ABSORPTION DISTANCEPage 43 NOTES 10-10C.STATIC AIR PRESSURE Table 15. Air Pressure Loss in AHU/DuctFigure 19. Absorption Distance – 3 Centers 10-10Figure 20. Absorption Distance – 6 Centers Figure 21. Absorption Distance – 9 Centers10-10 F.SAM-eDIMENSIONSTable Condensate LossFigure 23. SAM-eHeader 10-10Figure 24. SAM-eTubes Figure 25. Steam Inlet10-10 I.SAM-eSTEAM INLET CONFIGURATION SELECTION1Atmospheric Steam NH, GS, SE J.MINI SAM-eTable 18. Mini SAM-eHeaders – 10-10Table 19. Mini SAM-eHeaders – Table 20. Mini SAM-eTubesPage 50 10-1010-10 6. BLOWER PACKS BOBP, RMBPABOVE THE FLOOR A.BLOWER PACKS Figure 27. NH Series Humidifier WithPage 52 10-10NH Series Model Minimum Number Of10-10 7.CONTROLSA.GENERAL THIS FUNCTION B.ON/OFF CONTROLSFigure 29. Set Point Versus Outdoor Temperature D.OUTDOOR TEMPERATURE SETBACK10-10 E.TRANSDUCER SENSORSF.POSITIONING CONTROLS AND SENSORS 10-10G.NORTEC ONLINE Page 5510-10 Figure 30. NORTEC OnLine MonitoringPage 56 10-10 H. NORTEC LINKSPage 57 J.NORTEC CONTROLLER DIMENSIONS I.TYPICAL INSTALLATION LAYOUT FOR NHTC/NHPC1See dimensions in Chapter 10-10Figure 31. NORTEC Online Configuration Form NORTEC ONLINE CONFIGURATION FORM10-10 G FOR YOUR INFORMATION10-10 NORTEC LINKS FORMPlease complete the information below Figure 32. NORTEC Links FormModulating Wall Mounted Space Controller 10-10Modulating Wall Mounted Space Controller Page 61Page 62 10-1010-20 SPECIFICATIONS 10-20Page 63 1.HUMIDIFIERS SPECIFICATIONS4Warranty 10-20Page 65 10-2010-20 2Humidifier Controls NHTC and NHTC OutdoorPage Page 67 10-20Page 68 10-2010-20 4Humidifier Dispersion OptionsPage 69 10-20 C. EXECUTION 1ExaminationPage 70 4Testing 2Installation10-20 3CommissioningPage 72 10-2010-30 SUBMITTALS 10-30Page 73 10-30 1. SUBMITTAL DESCRIPTIONSA.INTRODUCTION B.NH UNIT2Built-OnBlower Pack NHTC and NHPC only 10-30F. CONTROLS Page 75Page 76 10-3010-30 Figure 1. Low Voltage Control Terminal StripPage 77 Figure 2. Primary Line Voltage Wiring to Unit 10-30Page 10-30 Figure 3. Physical Data – NHTC/NHPCPage 79 10-30 Figure 4. Physical Data – NHTC/NHPCPage 80 10-30 Figure 5. Physical Data – NHTC/NHPCPage 81 Unit Model 10-3010-30 Dimensions – in mmDistributor Minimum Duct10-30 Dimensions – in mmDistributor ModelDuct Width 10-30Duct Height D Tube HeightDuct Width 10-30Page 87 10-30Page 88 10-30Page 89 10-30Page 90 10-3010-30 Figure 14. Vertical Duct InstallationFigure 15. Outside Duct Mounting Cover Plates Page 91Figure 16. Atmospheric SAM-eAdapter Dimensions 10-30Page 92 Page 93 10-30Page 94 10-30Page 95 10-30Page 96 10-3010-30 Wall Digital Humidistat Dimensions10-30 Duct Sensor Dimensions2.SUBMITTALS 10-30B.INSTALLATION COMPONENT SELECTION A.INTRODUCTION10-30 Table 2. Common Accessories UniversalTable 3. Steam Distributors Page 10010-30 Table 4. Steam Distributor AccessoriesTable 3. Steam Distributors cont Page 101Other Accessories Table 4. Steam Distributor Accessories cont10-30 Page 10210-30 Table 5. SAM-eHeaderPage 103 10-30 Table 5. SAM-eHeader contPage 104 10-30 Table 5. SAM-eHeader contPage 105 10-30 Table 6. Adjustable Mounting Frame for SAM-eTable 5. SAM-eHeader cont Table 7. SAM-eTube Matrix10-30 Table 7. SAM-eTube Matrix contPage 107 10-30 Table 7. SAM-eTube Matrix contPage 108 10-30 Table 7. SAM-eTube Matrix contPage 109 10-30 Table 8. SAM-eInlet and Adapter ConfigurationsTable 7. SAM-eTube Matrix cont Page 110Table 9. Remote Blower Pack 10-30Table 10. Built-OnBlower Pack Page 111Table 11. Controls – ON/OFF 10-30Table 12. Modulating Control By NORTEC Page 112Page 113 10-3010-30 Table 18. NH Series Fusing OptionsTable 16. NORTEC OnLine Options NHTC only Table 17. NORTEC Links Options NHTC onlyC. SCHEDULE Humidifier Information 10-30Control Information Distributor InformationWARRANTY 826 Proctor Avenue Cylinder Replacement Date MM/DD/YYYY2740 Fenton Road Ogdensburg, NY