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Total Humidification Load Calculation

2596995_0_EN_1905

Nortec EL

5.1.1 Calculating Base Humidification Load

5.1.1.1 Total Unconditioned Air Supply Volume

The total volume of incoming unconditioned air (ft

/h), forced and naturally ventilated, depends on the

construction of the conditioned environment and the type of air circulation system used.

Forced Ventilation

Typically, an air handler system will exchange a fixed percentage of conditioned air for unconditioned

air. This unconditioned air is the volume of air that requires humidification.
Air handler systems vary by design, but will rely upon adding or removing volumes of air from a controlled

environment. Air handling systems that add air to the conditioned environment will have a total forced air

volume equivalent to the unconditioned supply air volume. Air handling systems that exhaust air from the

conditioned environment must have at least an equal volume of unconditioned air reintroduced, which

is equal to the total forced air volume.

Accounting for Economizer Cycles

Under normal heating conditions, the unconditioned supply air volume is usually relatively small to avoid

large heating and conditioning treatments. However when the economizer cycle is in operation, the un-

conditioned air volume may be as high as 100% of the total ventilation. To calculate the humidification

load for a system with an economizer cycle, the air ventilation and thermal load must be calculated for

each month in which the economizer mode may operate to determine the highest humidification load.

Natural Ventilation

A natural ventilation system is one that does not rely upon direct mechanical means to provide air

ventilation to the conditioned environment. Air enters the conditioned environment through openings in

the building envelope. The amount of makeup air is calculated based on the volume of the conditioned

space and an estimate of air changes per hour.

5.1.1.2 Unconditioned Supply Air Moisture

Once the total volume of unconditioned supply air is known, the moisture content of the air supply must

be determined. To ensure the humidifier capacity will be able to satisfy design conditions, the calcula-

tions must be based on the lowest unconditioned supply air temperatures and humidity that can be

expected on a yearly basis. In applications where the unconditioned supply air will be drawn from the

local atmosphere, Condair advises utilizing the weather data compiled by geographic location published

by the ASHRAE Climate Data Centre.
Once the lowest temperature for the given geographic location is known, the moisture content of the

unconditioned air supply can be determined as follows:

Supply Air Moisture (lb/ft

) = Maximum Supply Air Moisture (lb/ft

) × Lowest Humidity (% RH)

where,

• Maximum Supply Air Moisture is the moisture content (lb/ft

) at 100% RH, obtained from

Table 15 on

page 51

(imperial units) or

Table 16 on page 52

(metric units) corresponding to the lowest anticipated

supply air temperature for the unconditioned air supply;

• Lowest Humidity is the lowest anticipated humidity (% RH) for the unconditioned supply air source.

Содержание Nortec RS 10

Страница 1: ...ENGINEERING MANUAL Steam humidifier Nortec RS series Humidification and Evaporative Cooling 2596995 A EN 1911 ...

Страница 2: ...ata of Condair Ltd Neither this document nor the information contained herein shall be reproduced used or disclosed to others without the written authorization of Condair Ltd except to the extent required for installation or maintenance of recipient s equipment Liability Notice Condair Ltd does not accept any liability due to incorrect installation or operation of the equipment or due to the use o...

Страница 3: ...ings 20 4 Planning 25 4 1 Location and Clearances 25 4 2 Services 27 4 3 Installation Requirements 28 4 3 1 Humidifier Mounting 28 4 3 2 Water and Drainage Connections 30 4 3 3 Steam Distribution 31 4 3 3 1 Duct Distributors 31 4 3 3 2 Blower Packs 33 4 3 3 3 Atmospheric Steam and Condensate Lines 34 4 3 4 Electrical Connection 38 4 4 Control System Design 39 4 4 1 Control Signal Input 40 4 4 1 1 ...

Страница 4: ...otal Unconditioned Air Supply Volume 50 5 1 1 2 Unconditioned Supply Air Moisture 50 5 1 1 3 Conditioned Air Moisture 51 5 1 1 4 Base Humidification Load 51 5 1 2 Moisture Content Equilibrium 52 5 1 3 Condensate Loss 53 6 Product Selection 55 6 1 Humidifier and Options 55 6 2 Steam Distribution Equipment 57 A Appendix i A 1 Sample Specification i A 2 Blank Schedule iii ...

Страница 5: ... humidi fication requirements for a facility Other Helpful Resources Visit www na condairhelp com and use the free Condair online program Humidifier Engineering and Load sizing Program H E L P to assist you with absorption distance calculations selection of humidifiers steam distributors controls and accessories Tutorials on using this program are available from the Literature Media section of the...

Страница 6: ...the single cyl inder units except that it has two fill and drain connections two driver boards and one primary voltage terminal and two low voltage terminal strips one for each steam cylinder designated A and B The separate driver boards and low voltage terminal strips allow the large model to handle two separate sets of control signals This gives the large Nortec RS humidifier the flexibility to ...

Страница 7: ...st accurate steam output with optional High Precision control Zero side clearance for small installation footprint Standard integration into building management systems BMS using Modbus BACnet MS TP or BACnet IP Other protocols are available as options Standard drain water cooling which tempers drain water to meet local plumbing code requirements before it is emptied into the drain USB port for lo...

Страница 8: ...LED Provides quick feedback on operating status of the unit Adjustable units of measure Display settings in metric or imperial units of measure Manual output adjustment Provides the ability to limit the maximum steam output of the humidifier Operation and Maintenance Cleanable steam cylinder Simple service of the steam cylinder Scale Management Provides separate removable scale collection tank for...

Страница 9: ... Also supplied are two fill valves for quicker response turbo mode Mounting bar Provides two mounting bars which fit into each other for wall mounting One bar is fastened to the humidifier and the other bar is fastened to the wall The unit can be hung onto the wall by engaging the two mounting bars Note The unit can also be wall mounted without this option using the keyhole cutouts on the back of ...

Страница 10: ...r to Table 7 on page 11 Outdoor temperature sensors Provides automatic humidistat setpoint reduction to prevent condensation on windows sur faces adjacent to outdoor air Refer to Outdoor Temperature Setback on page 44 for additional details 2520263 Duct mounted temperature sensor 2553858 Outdoor mounted temperature sensor Humidity transducers Condair offers a range of digital humidity sensors for ...

Страница 11: ...an air gap in the drain line as close as possible to the hu midifier The air gap reducer is a 2 1 2 in to 7 8 in 63 5 mm to 22 mm fitting that can provide the required air gap 2522172 External drain air gap reducer Pocket hygro thermometer digital display The pocket hygro thermometer provides a means to check the humidity and temperature in a space It is a useful tool for troubleshooting humidity ...

Страница 12: ...ting cable plug 17 Heating elements 18 Excess temperature switch 19 Steam cylinder 20 Drain water cooling hose 21 Drain hose 22 Drain cup with drain connector 1 18 ø30 mm 23 Unit switch 24 Control voltage transformer 25 Touch screen display 26 Cable feed throughs 27 Control board 28 Specification label 29 Voltage supply terminals 30 Driver board 31 Main contactor 32 Heating section terminals 1 5 H...

Страница 13: ...onal kit for extending the fill cup so the humidifier can accommodate backpressure up to 10 in H2 O 2 49 kPa Controls cabinet High voltage terminal block Primary power connection from the external disconnect switch to the humidifier Contactor Activates deactivates power to the resistive heating elements in the steam cylinder Driver board Provides input and output connections to the humidifier comp...

Страница 14: ... tank Provides a separate reservoir under neath the steam cylinder for scale collection The addition of this option reduces maintenance time significant ly Minerals removed from the water during steam production will collect in the scale reservoir rather than in the tank For the double tank humidi fiers RS 135 and 180 order two for each humidifier This option is recom mended any time that the humi...

Страница 15: ...umn Longer hoses in cluded Two required for double tank humidifiers 1x OPS 2x OPS Secondary Valve Provides a secondary valve to use potable water for dedicated internal drain water cooling This option can be included when treated RO DI water is being supplied to the main boiling tank This option saves expen sive treated water by not sending it to drain for tempering Note that this option should no...

Страница 16: ...igital controller included for ease of access 1 6 User Interface The Nortec RS humidifier has an interactive touchscreen display which can be used to configure and monitor its operation Refer to Figure 3 In addition the unit can also be configured and monitored remotely using the built in BMS connectivity BACnet Modbus 2 3 1 Figure 3 Nortec RS User Interface 1 Touchscreen display user interface to...

Страница 17: ...g elements An external or the integrated continuous controller control the steam production fully variably from 0 to 100 Alternatively the Nortec RS can be controlled also via an On Off controller Flushing The evaporation process increases the concentration of minerals in the water of the steam cylinder A suitable volume of water must be flushed out of the steam cylinder from time to time and repl...

Страница 18: ...sistive heating elements in the steam cylinder s The LED lights green and steam is produced after a short delay 4 As water level in the steam cylinder drops due to evaporation to a certain level the fill valve opens and refills the water in the steam cylinder to the operating level again 5 As the humidifier continues to operate a the water level in the steam cylinder drops due to evaporation If th...

Страница 19: ...eam distributor 2 Condensate drain line 3 Steam line 4 Fill cup 5 Resistive heating elements 6 Supply hose 7 Fill and drain hose 8 Overflow hose 9 Fill valve 10 Drain pump 11 Drain canal 12 Lime collector tank 13 Steam cylinder 14 Level unit 15 Excess temperature switch 16 Heating cable plug 17 Control boeard 18 Driver board 19 Unit switch 20 Contactor 21 Supply terminal ...

Страница 20: ... fill valve is energized to assist in reducing the drain water temperature below 140 F 60 C and at the same time the drain pump is energized The water consumption of the Nortec RS largely depends on the set drain interval time based on the supply water quality and water hardness refer to Model Specifications on page 16 for draining rates If a heavy scale build up is discovered when servicing the s...

Страница 21: ...eakdown of the model number is shown in Figure 5 Example Nortec RS Space 65 440 480V 3 P SC Product designation Unit model Blank Duct Space with blower pack Steam capacity in lb hr Heating voltage 208V 1 50 60Hz 208V 1 240V 1 50 60Hz 240V 1 440 480V 1 50 60Hz 440 480V 1 600V 1 50 60Hz 600V 1 208V 3 50 60Hz 208V 3 240V 3 50 60Hz 240V 3 440 480V 3 50 60Hz 440 480V 3 600V 3 50 60Hz 600V 3 Control acc...

Страница 22: ... 6 4 10 0 15 4 8 550 600 V 1 14 7 6 7 8 3 15 5 0 RS 20 S 208 V 1 21 2 9 6 34 7 50 7 2 220 240 V 1 21 2 9 6 30 0 40 7 2 440 480 V 1 18 8 8 5 13 3 20 6 4 550 600 V 1 19 6 8 9 11 1 15 6 7 RS 30 M 208 V 1 31 8 14 4 52 0 70 10 8 89 145 40 66 220 240 V 1 31 8 14 4 45 0 60 10 8 440 480 V 1 31 5 14 3 22 3 30 10 7 550 600 V 1 31 4 14 2 17 8 25 10 7 RS 10 S 208 V 3 10 9 4 9 10 3 15 3 7 3 7 14 0 6 7 25 4 60 ...

Страница 23: ...0 V 3 71 9 32 6 58 0 80 24 1 440 480 V 3 63 0 28 6 25 8 35 21 4 550 600 V 3 70 6 32 0 23 1 30 24 0 RS 90 M 208 V 3 94 6 42 9 38 7 50 32 1 220 240 V 3 94 3 42 8 30 8 40 32 0 RS 90 L 440 480 V 3 95 4 43 3 90 0 125 32 4 2 x 3 7 2 x 14 0 2 x 6 7 2 x 25 4 178 57 81 0 291 01 132 0 550 600 V 3 94 6 42 9 77 4 100 32 2 RS 130 L 208 V 3 143 2 65 0 135 0 175 48 6 220 240 V 3 141 8 64 3 116 0 150 48 2 440 480...

Страница 24: ...V 1 31 5 14 3 22 3 30 10 7 550 600 V 1 31 4 14 2 17 8 25 10 7 RS 10 S 208 V 3 10 9 4 9 10 3 15 3 7 3 7 14 0 6 7 25 4 98 127 45 58 220 240 V 3 10 9 4 9 8 9 15 3 7 440 480 V 3 11 3 5 1 4 6 15 3 8 550 600 V 3 11 1 5 0 3 6 15 3 8 RS 15 S 208 V 3 15 9 7 2 15 0 20 5 4 220 240 V 3 14 5 6 6 11 9 15 4 9 440 480 V 3 14 6 6 6 6 0 15 5 0 550 600 V 3 17 6 8 0 5 8 15 6 0 RS 20 S 208 V 3 21 2 9 6 20 0 25 7 2 220...

Страница 25: ... 24 in Water Inlet Pressure 30 80 psig ALL UNITS IN INCHES mm 26 40 670 5 38 85 986 7 10 63 270 16 54 420 2 24 57 0 59 15 2 13 54 3 16 80 2 35 12 00 304 8 2 27 57 6 57 6 12 00 304 8 2 13 54 7 62 193 5 19 69 500 2 01 51 8 33 211 5 1 73 44 3 82 97 2 82 71 7 6 83 173 5 4 87 123 8 1 76 44 7 3 24 82 4 8 54 217 14 33 364 0 28 7 CONDENSATE RETURN ø 0 31 8 2X MARKED A A A STEAM OUT ø 1 77 45 1 38 2 27 WAT...

Страница 26: ...r Inlet Pressure 30 80 psig ALL UNITS IN INCHES mm 30 71 780 43 19 1097 10 63 270 20 87 530 2 24 57 0 59 15 2 13 54 3 48 88 5 1 38 35 16 00 406 5 2 43 61 8 2 43 16 00 406 5 2 13 54 7 62 193 5 24 02 610 2 01 51 12 66 321 5 1 73 44 3 82 97 2 43 61 8 6 44 163 5 7 16 181 8 1 76 44 7 3 24 82 4 9 13 232 15 98 406 0 28 7 A A 61 8 CONDENSATE RETURN ø 0 31 8 2X MARKED A STEAM OUT ø 1 77 45 WATER DRAIN Ø 1 ...

Страница 27: ...80 psig ALL UNITS IN INCHES mm CONDENSATE OUT ø 0 31 8 4X MARKED A STEAM OUT ø 1 77 45 2X WATER DRAIN Ø 1 22 31 2X WATER FILL NPT 1 2 2X 15 98 406 0 28 7 30 71 780 43 19 1097 10 63 270 39 37 1000 4 21 107 0 59 15 2 13 54 4 61 117 2 76 70 16 00 406 5 16 00 406 5 6 46 164 10 37 263 5 23 23 590 2 01 51 12 66 321 5 16 06 408 26 71 678 5 1 73 44 3 82 97 178 8 535 8 2 43 61 8 6 44 163 5 16 49 418 8 20 4...

Страница 28: ...ght Clearance 12 in Floor Clearance 86 5 in to top of blower pack Water Inlet Pressure 30 80 psig Clearances with blower pack on HIGH 26 40 670 5 38 85 986 7 10 63 270 16 54 420 2 24 57 0 59 15 2 13 54 0 5 12 3 16 80 2 35 12 00 304 8 2 27 57 6 57 6 12 00 304 8 2 13 54 7 62 193 5 19 69 500 2 01 51 8 33 211 5 1 73 44 3 82 97 1 38 2 27 WATER DRAIN Ø 1 22 31 WATER FILL NPT 1 2 15 8 400 14 4 365 35 2 8...

Страница 29: ...eiling Clearance 12 in Left Right Clearance RS 10 45 12 in RS 65 90 30 in Floor Clearance 96 in to bottom of blower pack Water Inlet Pressure 30 80 psig 30 71 780 43 19 1097 10 63 270 20 87 530 2 24 57 0 59 15 2 13 54 3 48 88 5 1 38 35 16 00 406 5 2 43 61 8 2 43 61 8 16 00 406 5 2 13 54 7 62 193 5 24 02 610 2 01 51 12 66 321 5 1 73 44 3 82 97 16 3 415 WATER DRAIN Ø 1 22 31 WATER FILL NPT 1 2 15 7 ...

Страница 30: ...Condair recommends minimum clearances of 6 in 150 mm on the side A clearance of 24 in 610 mm between the humidifier and the ground is also required Refer to Figure 11 and Table 10 on page 26 which also show the clearances required for the Nortec RS Space unit Observe all local and national installation codes Condair is not responsible for any installation code violations Refertothe BlowerPackInsta...

Страница 31: ... 0 Low 75 1 91 12 0 31 High 60 1 53 12 0 31 30 13 5 Low 86 2 19 12 0 31 High 71 1 81 12 0 31 45 20 5 Low 174 4 42 12 0 31 High 132 3 36 12 0 31 65 30 0 Low 189 4 81 48 1 22 30 0 77 High 153 3 89 12 0 31 90 40 0 Low 248 6 30 84 2 14 High 218 5 54 12 0 31 Data based upon nominal conditions 72 F 22 C 40 RH Note The High speed setting on the blower pack permits shorter absorption distances whereas the...

Страница 32: ... line for ease of maintenance Drainage The humidifier should be connected to a dedicated building drain recommended with a minimum drainage rate of 6 7 gal min per cylinder For safety reasons drain water from the humidifier should not empty into a sink used by personnel The drain line must allow free and easy draining Arestricted drain can cause water in the humidifier to over concentrate and caus...

Страница 33: ...ached The mounting surface must be able to withstand temperatures of 140 158 F 60 70 C that can be generated during operation of the humidifier The humidifier should be mounted on a wall or other suitable vertical surface that offers a sufficiently high load bearing capacity to support the full operating weight of the humidifier and accessories Refer to Table 8 on page 17 for the full weights of N...

Страница 34: ... Housing size Large a in inch mm 6 46 164 0 b in inch mm 16 77 426 0 c in inch mm 4 61 117 2 d in inch mm 16 00 406 4 Weights Housing size Large Netweight in lbs kg 178 57 81 0 Operating weight in lbs kg 291 01 132 0 Figure 14 Standard Humidifier Mounting large size units ...

Страница 35: ...o funnel if using DI or RO water use supplied drain hose or stainless steel pipe only able to withstand max temperature of 140 F 60 C hose must not touch funnel Open funnel with trap supplied by others Adapter G 3 4 1 2 NPT supplied with O ring and gasket Figure 15 Overview water installation for single units Small S and Medium M G 3 4 1 2 NPT Water drain connector ø1 18 ø30 mm Filter valve or Shu...

Страница 36: ...packs Nortec RS Space humidifier or remote mounted blower packs In all cases the steam distributors must have a dispersal capacity equal to or greater than the humidifier steam output Visit www na condairhelp com and use the free Condair online program Humidifier Engineering and Load sizing Program H E L P to assist you with absorption distance calculations se lection of humidifiers steam distribu...

Страница 37: ...tor Excessive turbulence may cause air stream collisions with internal duct walls components which must be avoided The air velocity in the duct must be greater than 300 ft min 92 m min to prevent steam migrating to and colliding with the duct ceiling An air proving switch and high limit humidistat must be installed in the system Refer to Duct Distribu tion Control Design on page 43 Backpressureint...

Страница 38: ...etting which offers quieter operation but requires longer absorption distance For more information refer to the Blower Pack Installation Operation and Maintenance Manual Condair document 2582277 available from www condair com 1 2 3 4 5 6 Figure 17 Condair Blower Pack 1 Remote mounted blower pack 2 Steam line must rise straight up 12 in 300 mm before any bends 3 Built on Space blower pack 4 Air gap...

Страница 39: ...iciency loss The maximum recommended length of steam line is listed in Table 12 on page 35 Refer to Table 13 on page 35 for equivalent length of some common fittings when calculating total equivalent length of the steam lines Also refer to Condensate Loss on page 53 when calculating ef ficiency losses based on total equivalent length of the steam line The steam line should not have any restriction...

Страница 40: ... ft 13 m RS 45 M 43 ft 13 m 86 ft 26 m 0 11 lb h ft 0 18 kg h m RS 65 M RS 90 M 47 ft 14 m 94 ft 28 m RS 90 L 43 ft 13 m 86 ft 26 m RS 130 L RS 180 L 50 ft 15 m 100 ft 30 m Condair Steam Hose RS 10 RS 180 10 ft 3 m P N 1328820 1 3 4 in 45 mm 0 15 lb h ft 0 22 kg h m Use a single steam line for each steam cylinder Do not combine lines except at a distributor and only if using the humidifiers in par...

Страница 41: ...ld be 8 in 200 mm The condensate drain line must have a constant minimum downslope of 1 2 and may be connected to the fill cup port on the top of the humidifier or to the building drain Condensate from a SAM e steam distributor or larger steam line should be connected to a drain water cooler if required by code before emptying into the building drain Large volumes of condensate from multiple humid...

Страница 42: ...daptor must be used to connect the steam lines to the steam distributor All requirements for steam and condensate lines must be satisfied Refer to Steam Lines on page 34 and Condensate Lines on page 36 15 ft 4 5 m max 1 2 3 4 6 5 2 Figure 20 Combining Multiple Steam Lines 1 SAM e steam distributor 2 Condensate drain line trap diameter 8 in 200 mm and located minimum 12 in 300 mm below condensate p...

Страница 43: ...ltage and current draw listed in the specifications refer to Nortec RS Specifications on page 17 The external dedicated fused disconnect switch must be installed close to the humidifier so it can be readily accessible when servicing the unit The fusing must not exceed the maximum circuit protec tion listed in the specifications All wiring must be in accordance with national and local electrical co...

Страница 44: ...ting input signals to the humidifier must be of the same type either transducers RH sensor or humidistats demand signals IMPORTANT In addition to the analog or digital control signals the 24 VAC security loop consist ing of On Off devices connected to Pin 1 and Pin 2 on the low voltage terminal strip must be closed for the Nortec RS humidifier to operate Condair highly recommends the use of a high...

Страница 45: ...troller or transducer RH sensor signals from an external humidity sensor In both cases the humidifier will not start steam production until the calculated system demand exceeds 3 Demand Signals If the humidifier receives a demand signal it calculates the desired steam production level as a percentage of the total humidifier capacity proportional to the incoming demand signal as a percentage of the...

Страница 46: ... Condair document 2574199 for control points and connection details The following is a list of installation requirements for BACnet communications 18 24 AWG shielded twisted pair cable with 120 Ω impedance is recommended for BACnet MS TP communications Refer to the BMS supplier for recommended maximum length of communication cables Category CAT 5 5E or 6 cable with RJ 45 terminations is recommende...

Страница 47: ...mode to satisfy humidity demand as described in General Description on page 1 Humidifiers operated in series mode permit a lower turn down ration however since the Nortec RS has 100 turn down it s typically recom mended to use parallel mode In parallel mode all steam output from the units in the chain connect to a common steam distribution system which offers even wear on the units LV 8 7 6 5 4 3 ...

Страница 48: ...rs with dual steam cylinders 4 4 3 Humidity Control Design 4 4 3 1 Duct Distribution Control Design When using the supply air duct for steam distribution Condair highly recommends the use of an air proving switch and a high limit humidistat in addition to a humidity controller Environments with exterior walls should also consider using an outdoor temperature sensor in the system Refer to Figure 24...

Страница 49: ...ts should be used including the following When using an economizer or variable air volume VAV air handling system Applications that require very high air exchange rate or 100 outdoor air Applications that require narrow humidity tolerances The following installation requirements must be observed when using humidity controllers in a duct distribution system Must be installed in a location represent...

Страница 50: ...ucer RH sensor Condair also recommends a high limit switch Environments with exterior walls should consider using an outdoor temperature sensor to prevent condensation on windows walls The following installation requirement must be observed when using humidity controllers in a space distribution system Wall mounted controls should be located in an area that is not exposed to infiltrating air and w...

Страница 51: ...m The normally open relay is closed when the board detects that the cylinder is drawing current and steam is being produced Service The relay can be wired to open NC or close NO when a warning is displayed on the humidifier display and the yellow service LED is illuminated Error The relay can be wired to open NC or close NO when a fault is detected by the humidifier controls Figure 27 INTERNAL EXT...

Страница 52: ... open relay can be wired to activate or deactivate the optional valve for flushing the water supply line for steam cylinder B Fan B The normally open relay can be wired to activate or deactivate an external fan of the air handling unit connected to steam cylinder B Fan A The normally open relay can be wired to activate or deactivate an external fan of the air handling unit connected to steam cylin...

Страница 53: ...ents of the steam and water system The control software of the Nortec RS features a maintenance counter for the Small maintenance and the Extended maintenance The maintenance counters are set at the initial commissioning based on the water condition on site however the maintenance counters can be adjusted at any time later to the actual operational conditions Important Independently of the mainten...

Страница 54: ...ration when calculating the total humidification load Refer to Moisture Content Equilibrium on page 52 for details Condensate Losses Some steam in the steam distribution system will condense back to a liquid state due to convection heat transfer which reduces the gross output of the humidifier These losses as discussed in Condensate Loss on page 53 must be taken into consideration when calculating...

Страница 55: ...ed for each month in which the economizer mode may operate to determine the highest humidification load Natural Ventilation A natural ventilation system is one that does not rely upon direct mechanical means to provide air ventilation to the conditioned environment Air enters the conditioned environment through openings in the building envelope The amount of makeup air is calculated based on the v...

Страница 56: ...e lb ft3 where Total Supply Air Volume is the total volume of incoming unconditioned air ft3 h as described in Total Unconditioned Air Supply Volume on page 50 Conditioned Air Moisture is the moisture content lb ft3 of the conditioned air supply as calculated in Conditioned Air Moisture on page 51 Supply Air Moisture is the moisture content of the unconditioned air supply as calcualted in Uncondit...

Страница 57: ... 00554 22 0 0194 42 0 0563 62 0 142 17 0 00113 3 0 00594 23 0 0206 43 0 0592 63 0 148 16 0 00125 4 0 00636 24 0 0218 44 0 0621 64 0 154 15 0 00138 5 0 00680 25 0 0230 45 0 0652 65 0 161 14 0 00152 6 0 00727 26 0 0243 46 0 0685 66 0 168 13 0 00167 7 0 00777 27 0 0257 47 0 0718 67 0 175 12 0 00183 8 0 00829 28 0 0272 48 0 0753 68 0 182 11 0 00200 9 0 00884 29 0 0287 49 0 0790 69 0 190 5 1 2 Moisture...

Страница 58: ...tor loses and conserve energy Additional information on calculating condensate losses and savings from the use of insulating distributors can be found in the Condair white paper Condair Stainless Steel Air Gap Insulation R Value To compensate for condensate losses when using a SAM e distribution manifold the calculated hu midification must be increased accordingly Refer to Table 17 and Table 18 fo...

Страница 59: ...to Atmospheric Steam and Condensate Lines on page 34 Once total equivalent linear length is determined Table 19 can be used to estimate the humidifier capacity lost to supply line losses Table 19 Approximate Condensate Per Foot of Atmospheric Steam Line Steam Capacity lb h kg h Nominal Steam Line Size Copper Tube MED Type L in mm Nominal Steam Line Size Stainless Steel Tube wall thickness 0 065 in...

Страница 60: ...selection below making sure that the total capacity of the model s selected exceeds the total humidification load Humidifier Model and Capacity Quantity RS 10 10 lb h 4 5 kg h Single unit Small RS 15 15 lb h 6 8 kg h Single unit Small RS 20 20 lb h 9 1 kg h Single unit Small RS 30 30 lb h 13 6 kg h Single unit Medium RS 45 45 lb h 20 4 kg h Single unit Medium RS 65 65 lb h 29 5 kg h Single unit Me...

Страница 61: ...ent SC Accessory board refer to Accessory Board on page 47 for additional details ACC Mounting bar MP Mounting rack MR In line water filter refer to Table 3 on page 5 for part number Controls The humidifier can be factory configured to accept specific analog control signals and thus eliminate the need to configure it in the field Refer to Analog Control Signals on page 40 for additional details Se...

Страница 62: ...nals on page 41 or BACnet LonWorks Supplemental manual Condair document 2585293 for details Digital Communications Protocol Part Number BACnet IP BACnet MS TP Standard Modbus Standard Condair Online Standard BTL certified BACnet MS TP BAC BTL MSTP BTL certified BACnet IP BAC BTL IP LonWorks LON 6 2 Steam Distribution Equipment Select a steam distributor that exceeds the production capacity of the ...

Страница 63: ... powered for 7 8 in 22 mm steam outlet 2579401 If steam and condensate hoses and accessories are required make the appropriate selection below Refer to Atmospheric Steam and Condensate Lines on page 34 for additional details on steam hoses Steam and Condensate Hose and Accessories Length inches Part Number Steam hose 1 3 4 in 45 mm I D 1328820 Condensate hose 3 8 in 9 5 mm I D 1328834 Self Actuate...

Страница 64: ...ns component sizes rough in requirements service sizes and finishes Include rated capacities operating weights furnished specialties and accessories b Submit manufacturer s installation instructions c Submit operation and maintenance data d Submit coordination drawings Detail fabrication and installation of humidifiers Include pip ing details plans elevations sections details of components and dis...

Страница 65: ...ive heating element for steam production ii Modulating output between 4 and 100 of rated capacity ii Control accuracy of up to 1 RH using optional Precision solid state relay control and high precision humidistat iv Separate scale collection chamber external from main boiling tank when using optional Scale Management system v Dual magnetic electronic float system located outside of the boiling wat...

Страница 66: ...s per manufacturers instructions b Install with required clearance for service and maintenance 3 2 Accessories a Install accessories in accordance with manufacturer s recommendations 3 3 Commissioning a Start up of humidifier to be by factory trained technician A 2 Blank Schedule A blank schedule is included on the following page for your convenience ...

Страница 67: ...596995_0_EN_1905 Nortec RS Notes Weight lb Freq Hz Phase Voltage V Input kW Capacity lb h Humidity Leaving RH Humidity Entering RH Temp Entering F Airflow cfm Duct Dimen W H Humidifier Model Mftr Type Area served Tag ...

Страница 68: ...Notes ...

Страница 69: ...Notes ...

Страница 70: ......

Страница 71: ...ched to THE COMPANY until said products have been paid for in full and then said liability shall be limited to the original purchase price for the product Any further warranty must be in writing signed by an officer of THE COMPANY THE COMPANY s limited warranty on accessories not of the companies manufacture such as controls humidistats pumps etc is limited to the warranty of the original equipmen...

Страница 72: ...les and Service U S A 835 Commerce Park Drive Ogdensburg New York 13669 CANADA 2740 Fenton Road Ottawa Ontario K1T 3T7 TEL 1 866 667 8321 FAX 613 822 7964 EMAIL na info condair com WEBSITE www condair com ...

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