Electrode Steam Humidifier Engineering Manual

ManualsBrandsNortec ManualsHumidifierNHPC

2538144-B

Series

NHTC / NHPC

ELECTRODE

STEAM HUMIDIFIER

Engineering Manual

Summary of content (125 pages)

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NH Series TM NHTC / NHPC ELECTRODE STEAM HUMIDIFIER Engineering Manual 2538144-B
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PROPRIETARY NOTICE This document and the information disclosed herein are proprietary data of WALTER MEIER LTD. Neither this document nor the information contained herein shall be reproduced used, or disclosed to others without the written authorization of WALTER MEIER LTD., except to the extent required for installation or maintenance of recipient’s equipment. All references to the NORTEC name should be taken as referring to WALTER MEIER LTD.
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TABLE OF CONTENTS Subject Page 10-00 ELECTRODE STEAM ENGINEERING 1. INTRODUCTION WHY ELECTRODE STEAM. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 PROPORTIONAL + INTEGRAL AUTO-ADAPTIVE CONTROL SYSTEM FOR THE NHTC/NHPC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 B. NH CAPACITY ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 C. DRAIN CYCLE AND CYLINDER LIFE . . . . . . . . . . . .
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Subject 7. A. B. C. D. E. F. G. H. I. J. Page CONTROLS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53 GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53 ON/OFF CONTROLS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53 MODULATING CONTROLS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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LIST OF FIGURES Figure Page 10-00 ELECTRODE STEAM ENGINEERING Figure 1. Figure 2. Figure 3. Figure 4. Figure 5. Figure 6. Figure 7. NHTC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Optimum Boiling Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Conductivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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Figure Figure 33. Figure 34. Figure 35. Figure 36. Page Humidifier Controlled by Air Proving, On/Off Duct Mounted High Limit and Modulating Wall Mounted Space Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61 Humidifier Controlled by Air Proving, Modulating Duct Mounted High Limit and Modulating Wall Mounted Space Controller . . . . . . . . . . . . . . . . . . . . . . . .
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LIST OF TABLES Table Page 10-00 ELECTRODE STEAM ENGINEERING Table 1. Table 2. Features Comparison . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 NHTC/NHPC Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 10-10 HUMIDITY, STEAM ABSORPTION AND DISTRIBUTION Table 1. Table 2. Table 3. Table 4. Table 5. Table 6. Table 7. Table 8. Table 9. Table 10. Table 11. Table 12. Table 13. Table 14. Table 15. Table 16. Table 17.
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Table Table 13. Table 14. Table 15. Table 16. Table 17. Table 18. 2008-10-01 Page Modulating Demand Signal By Others Single Channel. . . . . . . . . . . . . . . . . . . 113 Modulating Demand Signal By Others Dual Channel . . . . . . . . . . . . . . . . . . . . 113 Modulating By Other Transducer Signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113 NORTEC OnLine Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114 NORTEC Links Options . . . . . . . . .
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10-00 INTRODUCTION 10-00 Page 1 2008-10-01
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Figure 1.
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1. INTRODUCTION The NHTC humidifier is controlled by Nortec’s Patented Auto adaptive Water Management Control System. This system allows the humidifiers to adapt to basically any potable incoming water and changes that occur to the water supply. This eliminates the need to readjust drain timers, changes complete cylinders or time consuming adjustment of electrode spacing’s.
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(6) As the water is boiled away, the minerals left behind increase the conductivity of the water in the cylinder. As soon as the conductivity is greater than design, the Ta to boil from A to D will be shorter than To and a drain cycle is initiated. (7) The fill valve always opens during timer drains, adding cold water to mix with the hot water from the cylinder during automatic drain cycles. This tempering process is required to meet plumbing codes.
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Figure 2. Optimum Boiling Time Figure 3.
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B. NH CAPACITY ADJUSTMENT (1) Each NORTEC NH Series humidifier is rated at its maximum output capacity. By means of the alphanumeric display and keypad on the NHTC/NHPC, the humidifiers can be adjusted to obtain an output between 20% and 100% of its rated capacity. C. DRAIN CYCLE AND CYLINDER LIFE (1) (2) Water Type Used (Potable or Softened) (a) The electrode steam product line is one of the most efficient humidifier systems since it uses the minerals in the water to conduct electricity.
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0. Store previous cycle’s drain decision in integral (l) memory. 1. Fill to A trigger (use all places below 1-10). 2. Boil to C trigger without timing to allow previous fill water to mix thoroughly during boiling. 3. Boil from C to D while monitoring time (T actual). 4. Decide how long (how much) to drain, then fill to B. 5. Drain according to the P+I calculated drain time, fill on to control outlet temperature. 6. At D, stop draining and postpone remaining drain, fill to B. 7. Continue remaining drain. 8.
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It is important to note that the drain rate shown includes the make-up water, mixed with the drain water, which tempers the drain water to 140°F (60°C) or less. NOTE The electrode steam process provides optimum efficiency because all resistance to current passage is converted to usable energy. Unlike cal-rod or infrared humidifiers which convert some of their capacities into unusable heat. Figure 5. Capacity Setting & Cylinder Life Figure 6.
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3. PRE-INSTALLATION EQUIPMENT VERIFICATION A. GENERAL (1) Ensure the available voltage and phase correspond with humidifier voltage and phase as indicated on the humidifier’s specification label. (2) Ensure that the external fuse disconnect is sufficient size to handle the rated amperage as indicated on the humidifier’s specifications label. Refer to local building codes. (3) Report any discrepancy immediately to the site engineer. (4) Location and mounting is described in Chapter 10-10.
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Figure 6.
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Figure 7.
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10-10 HUMIDITY, STEAM ABSORPTION AND DISTRIBUTION 10-10 Page 12 2008-10-01
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HUMIDITY, STEAM ABSORPTION AND DISTRIBUTION 1. HUMIDITY A. ESTIMATING THE HUMIDIFICATION LOAD Note: The humidification load can easily be calculated by using Nortec’s Humidification Engineering and Load-sizing Program (HELP). The softward can be downloaded at www.humidity.com (1) Relative humidity is the percentage of moisture in the volume of air at a given temperature, compared to the maximum amount of moisture that the volume of air can hold at the same temperature and atmospheric pressure.
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Outdoor relative humidity Table 1.
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Table 3. Grains of Water Per Cubic Foot – Saturated Air (100% rh) °C °F Grains °C °F Grains -23 -10 .29 4 40 2.86 -5 .35 41 2.97 0 .48 42 3.08 8 .61 43 10 .78 -18 -12 °F Grains 58 5.41 °C °F Grains °C °F Grains 76 9.75 35 95 17.28 59 5.60 77 10.06 96 17.80 60 5.80 78 10.40 97 18.31 3.20 61 6.00 79 10.80 98 18.85 44 3.32 62 6.20 80 11.04 99 19.39 16 27 -9 15 .99 45 3.44 63 6.41 81 11.40 100 19.95 -7 20 1.24 46 3.56 64 6.
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Table 4.
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Table 4.
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Table 4. Design Outdoor Conditions (cont) JANUARY Relative Humidity (% RH) Province Manitoba New Brunswick Newfoundland N.W.T. Nova Scotia Ontario P.E.I. Quebec Saskatchewan Yukon Territory 10-10 Page 18 2008-10-01 City Brandon Churchill The Pas Winnipeg Campbellton Fredericton Moncton Saint John Corner Brook Gander Goose Bay St.
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(3) Using the natural ventilation method requires knowing the volume of the humidified space and the type of construction. A tightly constructed building will have a least one air change per hour. A loosely constructed building will have at least one and one half changes per hour, and this same building with a large a amount of incoming or exiting traffic will have at least two air changes per hour.
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(5) Using an exhaust air fan: (a) Formula 5 Assume the print shop has a 1,000 CFM fan to exhaust a drying room. The moisture required to humidify the drying room only is 1,000 x 5.08 x 60 min/hr _________________________ = 44 lbs/hr 7,000 grains/lb (Refer to Figure 1.) (6) Using an economizer cycle: (a) Care should be taken in sizing humidification load when an economizer cycle is incorporated into a building HVAC system.
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(b) Formula 7 Assume that during the summer the HVAC system is in the cooling mode. The air leaving the cooling coil is at 55°F and 90% rh. In order to maintain the desired 47% rh in the space, moisture must be added using the following formula: Desired space 80°F 47% rh = 5.19 gr/ft3 (Formula 1) 55°F 90% = 4.89 x 0.90 ________________________ Grains to add = __________ 4.40 gr/ft3 = 0.79 gr/ft3 15,000 x 0.79 x 60 min/hr _________________________ 7,000 grains/lb = 101.
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Table 5. Inside Relative Humidities At Which Moisture Will Condense On Windows (cont) Outside Temperature °F °C Outside Temperature Inside Temperature (°F/°C) 60/ 15.5 65/ 18.3 70/ 21 75/ 23.8 80/ 26.6 °F Double Windows, Still Air °C Inside Temperature (°F/°C) 60/ 15.5 65/ 18.3 70/ 21 75/ 23.8 80/ 26.
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Table 7.
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Table 7. Design Indoor Conditions For Various Places, Products and Processes (cont) Relative Humidity %RH Temperature Product and/or Process °F °C 70 – 80 70 – 74 71.5 – 72.5 21 – 27 21 – 23 22 – 22.
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Table 7.
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Table 7.
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Figure 2.
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2. STEAM ABSORPTION AND DISTRIBUTION A. VARIABLES THAT AFFECT ABSORPTION DISTANCES (1) This manual will help in the design of a steam distribution system to provide the optimum performance from the humidifier and absorption of steam within the duct system. (2) Experience has shown that absorption of steam is affected primarily by the psychrometric conditions of the air based on how much residual capacity at a given air volume and temperature exist to hold the moisture being introduced.
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Table 9. Typical Absorption Distances, Single Distributor, 100 lbs/hr Humidifier FPM °F (V) °C (T) % RH FT (H) CM (D) Typical System 500 70 21 30 3.0 91 Air handler before coils 500 55 13 80 4.5 137 Air handler after cooling 900 70 21 30 3.5 107 Supply air duct, on cool, no heat 900 55 13 70 6.0 183 Supply air duct, on cool 1000 55 13 90 8.0 244 Supply air duct, on cool with high humidity 1000 110 43 10 2.
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B. CALCULATING THE DOWN STREAM HUMIDITY LEVEL (1) Table 10 indicates the amount of water that each 1000 CFM of duct air holds in pounds of water per hour at various combinations or air temperature and relative humidity. Subtract the water vapour in the duct air before the steam distributor from the maximum allowed after the distributor. The chart indicates how many lbs/hr of water can be added to 1000 CFM of airflow. Table 10.
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NOTE Maximum capacity of the NHTC/NHPC humidifier can be limited through the keypad. C. CONTROL OF DUCT OR PLENUM SATURATION (1) NORTEC always recommends the use of a high limit humidistat set at 85% relative humidity in combination with an air-proving switch to assure air movement. Both of these controls are wired in series across the primary control terminals of the humidifiers so that should either of these conditions not be satisfied the humidifiers cannot operate.
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3. STEAM RUNS AND CONDENSATE RETURNS A. STEAM RUNS (1) Steam runs between the humidifier and the distributors can be accomplished by using flexible NORTEC steam hose or insulated copper pipe. The longer the steam run, including elbows, the lower the efficiency of the system. The more elbows and turns, the higher the losses become. The humidifier should be as close as possible to the distributor and the steam run should be as direct as possible.
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Table 11. Steam Line Material Short run < 10 feet (3 m) Steam Hose Copper Tube Stainless Steel Tube yes yes yes yes yes Long run > 10 feet (3 m) NOTE: Steel, Iron and aluminum tubing or pipe must not be used for the steam distribution lines with these humidifiers. Plastic tubing and pipe also must not be used for steam distribution lines. Table 12.
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(3) NORTEC recommends the use of insulated hard copper steam lines on distances of more than 10 feet and no more than 3 elbows (90⊃). The use of flexible steam hose on runs of more than 10 feet can reduce these recommended distances in Table 14 by as much as 25%. Steam hose can crimp and cause back pressure. Table 14. Maximum Recommended Length of Steam Runs Unit Size Steam Output Distance Possible Losses NH-005 5 lbs/hr 8 feet 1.0 lbs/hr NH-010 10 lbs/hr 15 feet 1.
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(2) Use vertical condensate leg of distributor only. Do not over-tighten clamp. (3) Drip stations on steam mains must be located at all low points in the system, at each elevation change and or directional change. (4) Horizontal runs of steam must have a 2" rise per foot (10°) when flow is going away from drip station and the steam run is to fall ½" per foot (2°) when flow is going towards drip station. (5) In a horizontal run of the steam main, drip stations must be located at regular intervals of 20 feet.
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(7) Vertical drop of the drip station should be 1.5 times the diameter of the steam main but no less then 12". (8) Install the P trap at the botom of the drip station. The P trap height is to be a minimum of 6 inches or 2 “ greater than the static pressure in the duct. (9) All distributors must be individually trapped.
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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.
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(2) Ensure the total capacity of the humidifier is not higher than the allowable maximum steam capacity of the following distributors: (a) ASD: 25 lbs/hr (9 kg/hr) (b) BSD: 35 lbs/hr (13 kg/hr) (c) CSD: 115 lbs/hr (45 kg/hr) C. DISTRIBUTOR LOCATIONS AND MOUNTING (1) NORTEC distributors can be mounted in air handlers, supply air ducts or return air ducts. Return air ducts should only be considered if all of the return air enters the building again and is not exhausted by the air handling device.
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Figure 12. Cutting Duct For Mounting Figure 13.
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CAUTION UNLESS YOU KNOW THE EXACT ABORPTION DISTANCE REQUIRED FOR THE STEAM ABSORPTION INTO THE AIR STREAM, THE DISTRIBUTOR SHOULD BE LOCATED AT LEAST 8-10 FT (2-3 M) AWAY FROM ANY OBSTACLE IT MAY CONDENSE ON (ELBOW, DIFFUSER, FILTER, ETC.) (2) Duct vertical clearance requirements for standard steam distributors are as follows: (a) ASD - 8 in. vertical duct height for 1st ASD - 5.5 in. additional duct height for each additional ASD = ROUNDDOWN (‘DuctHeight’ - 8")/5.5) + 1 (b) BSD - 10 in.
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determine the number of steam distributors that must be use for short saturation distances. (2) If the ‘Saturation Distance’ for one steam distributor is not sufficient, add more steam distributors until the minimum saturation distance is attained. (See Figure 13.) (3) To determine the number of distributors required, complete the following list: (a) Air humidity after humidification _____ %rh. (A high limit humidistat should be set at 80 – 85% to prevent wetting of ducts.
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5. SHORT ABSORPTION MANIFOLD (SAM-e) A. GENERAL (1) NORTEC’s best performing steam absorption system for use in Air Handling Units and duct systems where short steam absorption distance is critical. (2) The SAM-e, Figure 17, distributes clean steam, precisely controlled, uniformly into the entire air stream, void of any condensate spray. Steam distribution takes place via distributor tubes with integrated nozzles. The steam is kept dry as condensate is drained through the main header.
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(5) The features of the short absorption manifold are: (a) Inlets/Outlets located on same side, one access point required. (b) All stainless steel distributors and nozzles ensure permanent bond. (c) Stainless steel header with rubber grommet seals for easy installation of distribution tubes. (d) Adjustable mounting frame available for quick and easy installation. (e) Available with 3", 6", 9", or 12" center-to-center distributor spacing. (f) Atmospheric steam source. (g) Two year limited warranty. B.
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(6) Absorption Distances: 3" centers = 7" (18 cm) 6" centers = 9" (23 cm) 9" centers = 12" (31 cm) 12" centers = 18" (46 cm) (7) Reference Figures 19, 20, 21 and 22 to determine the center-to-center spacing required. NOTES 1. The absorption distance data is based on 55°F (13°C) minimum temperature before humidification. 2. Data is based on velocities between 200 fpm (101 cm/s) and 2500 fpm (1270 cm/s). 3.
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Figure 19. Absorption Distance – 3" Centers Figure 20. Absorption Distance – 6" Centers Figure 21. Absorption Distance – 9" Centers Figure 22.
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(2) NORTEC recommends the installation of a condensate drain on the steam inlet run prior to entering the SAM-e. Table 16. Condensate Loss Condensate Losses (% of Maximum Capacity) Air Velocity fpm (cm/s) 55°F 70°F 500 (255) 15% 12% 1000 (510) 20% 15% NOTE: These values may increase or decrease due to many unknown conditions or variables. This is only a guideline. E.
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(2) There is a selection of four types of steam tubes. Each are capable of distributing different capacities. To select the steam tube for your application refer to Table 17. Type A Type B Type B+ Type C 15 lbs/hr 35 lbs/hr 55 lbs/hr 75 lbs/hr (7 kg/hr) (16 kg/hr) (25 kg/hr) (34 kg/hr) (3) The humidifiers maximum capacity and SAM-e header will determine the steam tube type required. The selected header will determine how many steam tubes are required, refer to Tables 18, 19, 20 and 21.
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I. SAM-e STEAM INLET CONFIGURATION SELECTION (1) Atmospheric Steam (NH, GS, SE) (a) The steam inlet, Figure 25, is determined by the selected humidifier. Refer to submittals, Chapter 10-30 to determine the size of steam outlet required. (b) For a typical SAM-e installation, see Figure 26. J. MINI SAM-e (1) For the mini SAM-e installation, refer to Tables 18, 19, 20 and 21 for headers, tubes and inlet configuration. Table 17. SAM-e Tube Matrix *In-Duct Height in.
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Table 18. Mini SAM-e Headers – 3" Duct Width in. (cm) Steam Tubes Qty 12 (30.5) 3 18 (45.7) 24 (60.9) Header Part Number Maximum Capacity Atmospheric lbs/hr (kg/hr) MA MB MC 1509811 30 (14) 60 (27) 90 (41) 5 1509812 50 (23) 100 (45) 150 (68) 7 1509813 70 (32) 140 (64) 210 (95) Table 19. Mini SAM-e Headers – 6" Duct Width in. (cm) Steam Tubes Qty 12 (30.5) 2 18 (45.7) 24 (60.
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Figure 26.
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6. BLOWER PACKS (BOBP, RMBP) WARNING STEAM DISTRIBUTOR ON THE BUILT-ON AND REMOTE BLOWER PACKS HAVE A HOT SURFACE THAT COULD RESULT IN BURNS IF TOUCHED. NORTEC RECOMMENDS MOUNTING AT LEAST 8 FEET ABOVE THE FLOOR. A. BLOWER PACKS (1) Optional blower packs are used to distribute steam to localized areas such as computer rooms or in areas that do not have a built-in air distribution system. (2) Blower packs are available integrally mounted on humidifier BOBP, (See Figure 27.
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Table 22. Ceiling and Frontal Clearances for Blower Packs NH Series Model Minimum Number Of Blower Packs Minimum Ceiling Clearance in. (cm) Minimum Front Clearance in. (cm) 005 1 18 (45) 30 (76) 010 1 18 (45) 30 (76) 020 1 18(45) 36 (91) 030 1 18 (45) 72 (183) 050 1 36 (91) 84 (213) 075 1 42 (106) 144 (366) 100 1 48 (122) 156 (396) 150 2* 42 (106) 144 (396) 200 2* 48 (122) 156 (396) NOTES: 1. Remote mounted only.
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7. CONTROLS A. GENERAL (1) NORTEC humidifiers all accept on/off controls for their security loop. Many NORTEC humidifiers can also accept modulating or transducer signals for control (See the features section for each specific model). CAUTION REGARDLESS OF SELECTING ON/OFF OR MODULATING CONTROL METHOD, NORTEC HUMIDIFIERS MUST HAVE CLOSED CIRCUIT ACROSS ITS ON/OFF SECURITY LOOP CONTROL TERMINAL TO OPERATE.
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(d) Modulating Demand Signal Supplied by Others – A signal that is a linear demand signal that rises on need for humidity can be used in conjunction with NORTEC humidifiers. See features section for a list of which models can accept which signal) D. OUTDOOR TEMPERATURE SETBACK (1) The outdoor temperature setback sensor is used to prevent condensation on windows or other surfaces that are adjacent to outdoor air.
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F. POSITIONING CONTROLS AND SENSORS (1) When positioning controls and sensors, ensure other factors do not influence these devices and give incorrect inputs to the unit. Some of these influences are: (a) The wall humidistat should not be installed on an outside wall or hot or cold surface. (b) The sensor should be installed away from any heat source and away from direct sunlight and away from any water vapor producing source. (c) The wall surface should be flat and clean.
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Figure 30.
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(l) Access to service history (m) Option to add up to seven slave humidifiers to each NORTEC OnLine module (n) Monitor up to eight humidifiers (one master, seven slaves) with one Internet connection (o) Up to three years of coverage can be purchased at time of order (p) Secure 128-bit Internet connectivity (SSL) (5) Different networking configurations may be achieved and are mostly dependant on the type of network present at the site. Specify at the time of order using the form in Figure 31.
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I. TYPICAL INSTALLATION LAYOUT FOR NHTC/NHPC (1) The following are examples of typical control installation possibilities. There are many more configurations possible, be sure to consider the application and positioning as a priority. Figures 33, 34, 35, and 36 show typical control installation. J. NORTEC CONTROLLER DIMENSIONS (1) See dimensions in Chapter 10-30.
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NORTEC ONLINE CONFIGURATION FORM Please complete the information below. Attention: Date: Company: Fax #: From: Page: Subject: of NORTEC Online Information G FOR YOUR INFORMATION G RESPONSE REQUESTED Agent P.O.
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NORTEC LINKS FORM Please complete the information below. Attention: Date: Company: Fax #: From: Subject: Page: of NORTEC Links Information G FOR YOUR INFORMATION G RESPONSE REQUESTED MESSAGE Agent P.O.
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Figure 33. Humidifier Controlled by Air Proving, On/Off Duct Mounted High Limit and Modulating Wall Mounted Space Controller Figure 34.
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Figure 35. Humidifier Controlled by Air Proving, Modulating Duct Mounted High Limit and Modulating Wall Mounted Return Air Sensor with Wall Mounted Controller Figure 36.
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10-20 SPECIFICATIONS 10-20 Page 63 2008-10-01
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SPECIFICATIONS 1. HUMIDIFIERS A. GENERAL (1) Work Included (a) NORTEC NH Series electrode steam humidifier(s) as indicated on drawing(s) and as indicated on schedule(s). (b) Complete and operable humidification system (which meets applicable building codes). (c) Equipment start-up and project inspection by qualified factory trained representative. (2) Submittals (a) Submit product data under provisions of Section 15010.
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2 Published replacement pricing. 3 Cylinder seams must be spin welded to ensure long-term water tightness and leak resistance. 4 Integral electronics to ensure safe operation. 5 High water sensor circuitry to prevent over filling. 6 Efficient operation over a wide range of water conditions. 7 Simple maintenance without disassembly or removal of humidifier. No specialized tools required. 8 Full output and maximum energy efficiency through entire cylinder life.
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10 Accepts a signal from BMS/BAS system or modulating humidistat. 11 Single or dual channel signal acceptance. 12 Isolated plumbing and electrical compartment with cabinet made of 18-gauge powder coat paint finish and 20 gauge plumbing electrical door. Modular plumbing and electrical fully assembled and pre-wired (no field assembly required). 13 Removable door (no special tools required) to allow user full front access of plumbing and electrical sections.
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m Manual capacity output adjustment range of 20-100%. n Humidifier model, capacity, software version. o Cylinder model # and capacity rating. p Humidifier run time weighted hours. q Date and time (year, month, day, hour and minute). r Stand by heating to increase steam production response time. s Rapid modulation capability reduces response time upon start-up. t Short cycling detection and correction diagnostics. u Foam detection and correction capability.
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e Channel 2 Set point – Control channel 2 setpoint for relative humidity in space 0-100% (read/write). f System Demand – Indicates humidifier system demand based on input signal calculations 0-100% (read). g Demand/rh_Configuration Parameter – Configures humidifier to accept demand or %rh signal(s) (read/write). h Remote fault Indication – System fault indication and alarm status (read). i Network Sensors – Allows network-enabled sensing or control (read/write).
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11 Individual account access to www.norteconline.com. 12 Monitor up to seventy parameters from each humidifier. 13 Access to service history. 14 Option to add up to or ‘slave’ humidifiers to each NORTEC OnLine module. 15 Monitor up to or with one or connection.
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2 The factory assembled blower pack includes an integral steam distributor, three tubeaxial (box) fans, fusing, wall mounting bracket, and air proving safety circuitry. 3 Primary and control voltage terminal blocks facilitate field connections between the humidifier. 4 Blower pack may be remote mount or built-on the humidifier.
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(b) Examine roughing-in for piping systems to verify actual locations of piping connections before humidifier installation. (c) Proceed with installation only after unsatisfactory conditions have been corrected. (2) Installation (a) Install humidifiers and steam dispersion panels per manufacturers’ instructions. (b) Seal humidifier dispersion-tube duct penetrations with flange. (c) Install with required clearance for service and maintenance.
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1 Training of the owner’s operation and maintenance personnel is required in co-operation with the commissioning authority. Provide competent, factory authorized personnel to provide instruction to operation and maintenance personnel concerning the location, operation, and troubleshooting of the installed systems. The instruction shall be scheduled in coordination with the commissioning authority after submission and approval of formal training plans.
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10-30 SUBMITTALS 10-30 Page 73 2008-10-01
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1. SUBMITTAL DESCRIPTIONS A. INTRODUCTION (1) The information found in this section is general in nature and consists of part numbers, product descriptions and options, dimensions, specifications and equipment features. B. NH UNIT (1) The different wiring connections to the humidifier unit can be found in Figure 2. All wiring is to be in accordance with existing national and local electrical codes. (2) Performance data for single and double units can be found in Figure 3, Figure 4, and Figure 5.
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between the NH unit and remote blower pack terminal blocks or can be powered by a seperate 12 ov supply. (b) Disk thermostat mounted on the top of steam distributor will start the fan when steam is generated and will allow to cool down the blower pack when there is no call for humidity. (c) A minimum of two (2) 050-100 RMBP’s are required with the NH-150 or NH200 units. It is recommended that four (4) RMBP’s be used to reduce the steam absorption distances.
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coupled circuits can be specified. Coupled circuits will enable the two circuits to be operated from one controller without compromising the safety features of the humidifier (order Part No.146-9000). (3) The humidifier shall be controlled directly using a humidity sensor (transducer) supplied by others. The sensor will be field wired to the humidifier for a direct control at the humidifier. The same sensor(s) can be shared in parallel to a Building Automation System for monitoring purposes.
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Figure 1. Low Voltage Control Terminal Strip (11) A and B: Mount any wall humidistat (control or high limit) over a standard electrical box at a height similar to a typical thermostat. Any wall humidistat should be in a location representative of the overall space being humidified and not in the path of a blower pack or an air supply grille. (12) A: Mount any duct control humidistat in a location representative of the overall air humidity, usually the return duct.
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Figure 2.
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Figure 3.
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Figure 4.
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Figure 5.
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Unit Model Distributor Model No. of Cylinders No. of Outlets/Cylinder OD of Cylinder Outlet (NHTC,P,B) OD of Cylinder Outlet (NHSC/DI) NH 005-020 ASD 1 1 f" 1¾" NH 030 BSD 1 1 f" 1¾" NH 045-100 CSD 1 1 f" 1¾" Dimensions – in.(mm) Distributor Model ASD 12 ASD18 ASD 24 ASD 30 ASD 36 ASD 42 ASD 48 ASD 54 ASD 60 ASD 66 A B L 2 (51) 2 (51) 2.25 (57) 2.25 (57) 2.25 (57) 2.5 (64) 2.5 (64) 2.5 (64) 3 (76) 3 (76) 1.75 (44) 1.75 (44) 1.75 (44) 1.75 (44) 1.75 (44) 2 (51) 2 (51) 2 (51) 2.5 (64) 2.
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Distributor Model BSD 12 BSD 18 BSD 24 BSD 30 BSD 36 BSD 42 BSD 48 BSD 54 BSD 60 BSD 66 BSD 72 BSD 78 BSD 84 BSD 90 BSD 96 BSD 102 A 2 (51) 2 (51) 2.25 (57) 2.25 (57) 2.25 (57) 2.5 (64) 2.5 (64) 2.5 (64) 3 (76) 3 (76) 3 (76) 4 (102) 4 (102) 4 (102) 4 (102) 4 (102) Dimensions – in (mm) B 1.75 (44) 1.75 (44) 1.75 (44) 1.75 (44) 1.75 (44) 2 (51) 2 (51) 2 (51) 2.5 (64) 2.5 (64) 2.5 (64) 3.5 (89) 3.5 (89) 3.5 (89) 3.5 (89) 3.
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Distributor Model CSD 24 CSD 30 CSD 36 CSD 42 CSD 48 CSD 54 CSD 60 CSD 66 CSD 72 CSD 78 CSD 84 CSD 90 CSD 96 CSD 102 CSD 108 CSD 114 CSD 120 CSD 126 CSD 132 CSD 138 CSD 144 A 1.75 (44) 2 (51) 2 (51) 2.25 (57) 2.25 (57) 2.25 (57) 2.5 (64) 2.5 (64) 2.5 (64) 3 (76) 3 (76) 4 (102) 4 (102) 4 (102) 4 (102) 5 (127) 5 (127) 5 (127) 6 (152) 6 (152) 6 (152) Dimensions – in (mm) B C 1.55 (39) 20 (508) 2 (51) 26 (406) 2 (51) 32 (508) 2 (51) 38 (660) 2 (51) 44 (813) 2 (51) 50 (965) 2.5 (64) 56 (1118) 2.
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Duct Width in cm 18 24 30 36 42 48 54 60 66 72 78 84 90 96 102 108 114 120 126 132 138 144 45.7 61.0 76.2 91.4 106.7 121.9 137.2 152.4 167.6 182.9 198.1 213.4 228.6 243.8 259.1 274.3 289.6 304.8 320.0 335.3 350.5 365.8 A in 13 1/8 19 1/8 25 1/8 31 1/8 37 1T/8 43 1/8 49 1/8 55 1/8 61 1/8 67 1/8 73 1/8 79 1/8 85 1/8 91 1/8 97 1/8 103 1/8 109 1/8 115 1/8 121 1/8 127 1/8 133 1/8 139 1/8 B cm 33.3 48.6 63.8 79.1 94.3 109.5 124.8 140.0 155.3 170.5 185.7 201.0 216.2 231.5 246.7 261.9 277.2 292.4 307.7 322.
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Duct Width in cm 12 30.5 18 45.7 24 61.0 A in 11 1/16 17 1/16 23 1/16 cm 28.1 43.3 58.6 Duct Height in cm 8 20.3 10 25.4 12 30.5 14 35.6 16 40.6 18 45.7 20 50.8 22 55.9 24 61.0 B in 7 7/8 9 7/8 11 7/8 13 7/8 15 7/8 17 7/8 19 7/8 21 7/8 23 7/8 C cm 20.0 25.1 30.2 35.2 40.3 45.4 50.5 55.6 60.6 in 4 7/16 6 7/16 8 7/16 10 7/16 12 7/16 14 7/16 16 7/16 18 7/16 20 7/16 cm 11.3 16.4 21.4 26.5 31.6 36.7 41.8 46.8 51.9 Figure 10.
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Figure 11.
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Figure 12.
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Figure 13.
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Figure 13.
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Figure 14. Vertical Duct Installation Figure 15.
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Figure 16.
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Figure 17.
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Figure 18.
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Figure 19.
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Figure 20.
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A in. 4.4 B cm 12.2 in. 2.9 Wall Digital Humidistat Dimensions C D E cm in. cm in. cm in. cm 7.2 1.2 3.0 0.6 1.6 1.7 4.3 Figure 21. Wall Digital Humidistat 10-30 Page 97 2008-10-01 F in. 1.7 cm 4.
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A in. 3.5 B cm 8.9 in. 7.9 cm 20.0 Duct Sensor Dimensions C D in. cm in. cm 1.7 4.2 4.4 11.2 E in. 3.9 F cm 9.6 in. 3.5 cm 8.9 Figure 22.
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2. SUBMITTALS A. INTRODUCTION (1) The following pages are intended to be used by the engineer to determine the component quantities required. B. INSTALLATION COMPONENT SELECTION (1) The following Tables 1 through 15 will enable the engineer to select components for this installation. Table 1. NH Series Unit Options Part No.
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Table 2. Common Accessories Universal Part No. Description 1458807 DOUBLE CHECK VALVE FOR WATER INLET LINE 1429527 DRAIN WATER SUMP PUMP (HIGH TEMPERATURE) 1329505 IN-LINE WATER FILTER 5 micron filter 1469595 POCKET HYGRO-THERMOMETER DIGITAL DISPLAY 1329561 REPLACEMENT WATER FILTERS 1 micron 1329506 REPLACEMENT WATER FILTERS 5 micron Qty Table 3. Steam Distributors Part No.
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Table 3. Steam Distributors (cont) Part No.
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Table 4. Steam Distributor Accessories (cont) Part No. Description Qty Small Size Steam Distribution Accessories (<33 lb/hr) 1329642 BALANCING VALVE MANUAL TYPE FOR f" LINE 1329663 SMALL STEAM SUPPLY HEADER 1 INTO 3 f" x f" x f" x f" 1329662 STEAM SUPPLY LINE TEE f" x f" x f" OD 1328810 INSULATED FLEXIBLE STEAM SUPPLY HOSE Actual f" ID fits with ASD and BSD type steam distributors, used with models 030 and smaller humidifiers.
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Table 5. SAM-e Header Part No. Description 1503269 3" CENTERS, 18" (45.7 cm) WIDE 3 Steam tubes 1503270 3" CENTERS, 24" (61.0 cm) WIDE 5 Steam tubes 1503271 3" CENTERS, 30" (76.2 cm) WIDE 7 Steam tubes 1503272 3" CENTERS, 36" (91.4 cm) WIDE 9 Steam tubes 1503273 3" CENTERS, 42" (106.7 cm) WIDE 11 Steam tubes 1503274 3" CENTERS, 48" (121.9 cm) WIDE 13 Steam tubes 1503275 3" CENTERS, 54" (137.2 cm) WIDE 15 Steam tubes 1503276 3" CENTERS, 60" (152.
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Table 5. SAM-e Header (cont) Part No. 1503290 ––– Description Qty 3" CENTERS, 144" (365.8 cm) WIDE 45 Steam tubes 3" CENTERS, 144+" (365.8+ cm) WIDE Consult factory 1503309 6" CENTERS, 18" (45.7 cm) WIDE 2 Steam tubes 1503310 6" CENTERS, 24" (61.0 cm) WIDE 3 Steam tubes 1503331 6" CENTERS, 30" (76.2 cm) WIDE 4 Steam tubes 1503312 6" CENTERS, 36" (91.4 cm) WIDE 5 Steam tubes 1503313 6" CENTERS, 42" (106.7 cm) WIDE 6 Steam tubes 1503314 6" CENTERS, 48" (121.
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Table 5. SAM-e Header (cont) Part No. Description 1503328 6" CENTERS, 132" (335.3 cm) WIDE 21 Steam tubes 1503329 6" CENTERS, 138" (350.5 cm) WIDE 22 Steam tubes 1503330 6" CENTERS, 144" (365.8 cm) WIDE 23 Steam tubes ––– 6" CENTERS, 144+" (365.8+ cm) WIDE Consult factory 1506789 9" CENTERS, 36" (91.4 cm) WIDE 3 Steam tubes 1506790 9" CENTERS, 48" (121.9 cm) WIDE 5 Steam tubes 1506791 9" CENTERS, 60" (152.4 cm) WIDE 7 Steam tubes 1506792 9" CENTERS, 72" (182.
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Table 5. SAM-e Header (cont) Part No. Description 1506803 12" CENTERS, 108" (274.3 cm) WIDE 9 Steam tubes 1506804 12" CENTERS, 120" (304.8 cm) WIDE 10 Steam tubes 1506805 12" CENTERS, 132" (335.3 cm) WIDE 11 Steam tubes 1506806 12" CENTERS, 144" (365.8 cm) WIDE 12 Steam tubes ––– Qty 12" CENTERS, 144+" (365.8+ cm) WIDE Consult factory Table 6. Adjustable Mounting Frame for SAM-e Part No.
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Table 7. SAM-e Tube Matrix (cont) Part No. Description 1503396 TYPE A, 66" (167.6 cm) WIDE 15 lbs/hr (7 kg/hr) 1503397 TYPE A, 72" (182.9 cm) WIDE 15 lbs/hr (7 kg/hr) 1503398 TYPE A, 78" (198.1 cm) WIDE 15 lbs/hr (7 kg/hr) 1503399 TYPE A, 84" (213.4 cm) WIDE 15 lbs/hr (7 kg/hr) 1503400 TYPE A, 90" (228.6 cm) WIDE 15 lbs/hr (7 kg/hr) 1503401 TYPE A, 96" (243.8 cm) WIDE 15 lbs/hr (7 kg/hr) 1503402 TYPE A, 102" (259.1 cm) WIDE 15 lbs/hr (7 kg/hr) 1503403 TYPE A, 108" (274.
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Table 7. SAM-e Tube Matrix (cont) Part No. Description 1503418 TYPE B, 66" (167.6 cm) WIDE 35 lbs/hr (16 kg/hr) 1503419 TYPE B, 72" (182.9 cm) WIDE 35 lbs/hr (16 kg/hr) 1503420 TYPE B, 78" (198.1 cm) WIDE 35 lbs/hr (16 kg/hr) 1503421 TYPE B, 84" (213.4 cm) WIDE 35 lbs/hr (16 kg/hr) 1503422 TYPE B, 90" (228.6 cm) WIDE 35 lbs/hr (16 kg/hr) 1503423 TYPE B, 96" (243.8 cm) WIDE 35 lbs/hr (16 kg/hr) 1503424 TYPE B, 102" (259.1 cm) WIDE 35 lbs/hr (16 kg/hr) 1503425 TYPE B, 108" (274.
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Table 7. SAM-e Tube Matrix (cont) Part No. Description 1509398 TYPE B+, 72" (182.9 cm) WIDE 55 lbs/hr (25 kg/hr) 1509399 TYPE B+, 78" (198.1 cm) WIDE 55 lbs/hr (25 kg/hr) 1509400 TYPE B+, 84" (213.4 cm) WIDE 55 lbs/hr (25 kg/hr) 1509401 TYPE B+, 90" (228.6 cm) WIDE 55 lbs/hr (25 kg/hr) 1509402 TYPE B+, 96" (243.8 cm) WIDE 55 lbs/hr (25 kg/hr) 1509403 TYPE B+, 102" (259.1 cm) WIDE 55 lbs/hr (25 kg/hr) 1509404 TYPE B+, 108" (274.3 cm) WIDE 55 lbs/hr (25 kg/hr) 1509405 TYPE B+, 114" (289.
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Table 7. SAM-e Tube Matrix (cont) Part No. Description 1503448 TYPE C, 84" (213.4 cm) WIDE 75 lbs/hr (34 kg/hr) 1503449 TYPE C, 90" (228.6 cm) WIDE 75 lbs/hr (34 kg/hr) 1503450 TYPE C, 96" (243.8 cm) WIDE 75 lbs/hr (34 kg/hr) 1503451 TYPE C, 102" (259.1 cm) WIDE 75 lbs/hr (34 kg/hr) 1503452 TYPE C, 108" (274.3 cm) WIDE 75 lbs/hr (34 kg/hr) 1503453 TYPE C, 114" (289.6 cm) WIDE 75 lbs/hr (34 kg/hr) 1503454 TYPE C, 120" (304.8 cm) WIDE 75 lbs/hr (34 kg/hr) 1503455 TYPE C, 126" (320.
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Table 9. Remote Blower Pack Part No.
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Table 11. Controls – ON/OFF Part No. 2520259 2520273 Description Qty DIGITAL HUMIDISTAT WALL MOUNTED ON/OFF On/off wall mounted humidistat applicable as control humidistat or high limit 10% to 90% RH range with 5% non-adjustable differential. Control DIGITAL HUMIDISTAT DUCT MOUNTED ON/OFF PACKAGE On/off duct mounted humidistat, applicable as a control humidistat or high limit, 15% to 90% RH range with 4% non-adjustable differential.
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Table 13. Modulating Demand Signal By Others Single Channel Part No.
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2523117 2 - 10 Vdc dual channel Transducer signal acceptance 2523118 0 - 20 Vdc single channel Transducer signal acceptance 2523119 0 - 20 Vdc dual channel Transducer signal acceptance Table 16. NORTEC OnLine Options (NHTC only) Part No. Description 1509780 NORTEC ONLINE Static IP Option for NHTC 1509781 NORTEC ONLINE DHCP Option for NHTC 1509782 NORTEC ONLINE GPRS Option for NHTC 1509783 NORTEC ONLINE Dial-Up Option for NHTC 1509784 NORTEC ONLINE Slave Option for NHTC Qty Table 17.
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2522478 FUSING NHTC/PC 100/550-600/3 2522479 FUSING NHTC/PC 150/208-240/3 2522480 FUSING NHTC/PC 150/440-600/3 2522481 FUSING NHTC/PC 200/208-240/3 2522482 FUSING NHTC/PC 200/440-480/3 2522483 FUSING NHTC/NHPC 200/550-600/3 C.
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WARRANTY (1) Walter Meier Inc. and/or Walter Meier Ltd. (hereinafter collectively referred to as THE COMPANY), warrant for a period of two years after installation or 30 months from manufacturer’s ship date, whichever date is earlier, that THE COMPANY’s manufactured and assembled products, not otherwise expressly warranted (with the exception of the cylinder), are free from defects in material and workmanship.
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INSTALLATION DATE (MM/DD/YYYY) MODEL # SERIAL # CYLINDER # Cylinder Replacement Date (MM/DD/YYYY) Authorized Agent: U.S.A. Walter Meier (Climate USA) Inc. CANADA Walter Meier (Climate Canada) Ltd. 826 Proctor Avenue Ogdensburg, NY 13669 TEL: 1-866-NORTEC-1 EMAIL: northamerica.climate@waltermeier.com WEBSITE: www.humidity.