IOM Manual - Neptronic
Contents
1. E s Steam outlet Alphanumeric AY UW A Heat sink for display window modulating units only Supply water 1 2 NPT A IW 15mm e Y Power supply q knockout hole D O Ta Electrical control oo U i A knockout hole Main drain 3 4 20mm zas B o ee me o Pan drain 1 2 15mm Illustration 3 Weather Proof Enclosure Weather Proof Enclosure Dimensions and Weight Table 2 Weather Proof Enclosure Dimensions and Weight Dimensions of the Cabinet inch mm C Empty SK302 SK304 28 5 724 25 8 655 11 3 287 30 79 36 SK306 5 8 66 34 5 876 29 8 757 95 43 144 65 et 34 5 876 40 8 1036 13 3 338 165 75 260 118 Output and Power Consumption Humidifier Table 3 Output and Power Consumption Model Capart Consumption Steam Output Capacity Amperage A Diameter lb hr kg hr KW Y inch mm SK302 6 27 2 85 10 45 35 1 1 85 _SK306 18 8 6 280 165 13 72 105 6 1 1 35 SK310 30 14 10 238 12 10 1 1 85 _SK314 40 19 135 38 165 135 1 1 85 SK320 _ 60 28 20 3 20 2 1 85 SK330 90 41 30 36 3 2 1 35 SK340 120 56 40 5 4 2 2 54 _SK360 180 82 602. 72 60 3 2 54 Available consult factory ome fm rm A Aun SSN AU AR Note Program maximum steam output using the Lock On function in Program Mode on Modulating Humidifier according to the information in the Table 3 Output and Power Consumption Do not consider a possible reduction of steam output due to modulation i WARNING For Modulating Humidifier maintain the maximum power of the electrical installations www neptronic com Page 3 neptronic SK300 Steam Humidifier o Installation Instructions and User Manual Mechanical Installation General Recommendations A WARNING Risk of electric shock Disconnect the appliance from electric supply before commencing installation Note Mechanical installation should conform to local codes and regulations Location A WARNING The SK300 series humidifiers are designed for indoor installation only For outdoor installation the SK300 must be installed using a Neptronic weather proof enclosure see Positioning and Mounting Weather Proof Enclosure Unit on page 6 Failure to follow these guidelines will void the warranty Consider the following points before deciding the location for the SK300 Steam Humidifier Plan a location that is easy to access and permits an easy inspection and servicing of the humidifier Do not install the humidifier where failure of the appliance could cause damage to the building structure or to oth
3. Installation Instructions and User Manual Humidifier does not produce steam No Demand Indicator Status Display Fill Fil Drain Drain Cause e Modulating humidifier no analog signal e On Off humidifier no demand from humidistat or air flow is not detected by air pressure switch or high limit humidistat is open e Control wires are not properly secured to the terminal blocks Corrective Action e Verify the setting of the humidistat e Check the fan operation e Check the operation of the high limit humidistat e Verify the connections of the wires to the control terminal blocks Humidifier does not produce steam Safety Open Modulating Humidifiers only Indicator Status Display SAFETY OPEN Drain Cause e Air flow is not detected by air pressure switch or high limit humidistat is open e Control wires are not properly secured to the terminal blocks Corrective Action e Check the fan operation e Check the operation of the high limit humidistat e Verify the wires to the control terminal blocks 1 amp 2 www neptronic com Page 39 neptronic SK300 Steam Humidifier Installation Instructions and User Manual No water inside the evaporation chamber or Humidifier does not stop draining Status Display Check Check Steam Steam Cause e Humidifier is filling water but has not reached yet or does not reach the high limit of the water level sensor e Humidifier is not filling
4. Enc Max Capacity Outlet Distribution Pipes L h L h Ib hr kg hr Qty engt Py inm e SK330 SK340 2 51 320750 64 1500 SK360 For higher static pressure contact the manufacturer SK302 Skoa 12000 12000 EL EL SK306 SK310 1 35 SK314 24 600 48 1200 1245 SK320 NES www neptronic com Page 8 neptronic SK300 Steam Humidifier Installation Instructions and User Manual Placement of Steam Pipe in Horizontal Duct 1 35mm Diameter Pipe 6 minimum 150mm H H E i 10 minimum 1 a dell m gi Y 3 minimum 80mm 8 200mm Illustration 11 1 85mm Diameter Pipe Placement Horizontal Duct 2 51mm Diameter Pipe 10 minimum e 24 minimum 250mm 600mm Illustration 12 2 51mm Diameter Pipe Placement Horizontal Duct O Note 2 51mm steam pipe must be supported on the end by appropriate duct hanger or strap supplied by others Placement of Steam Pipe in Vertical Duct Eyelet Orientation Illustration 13 Eyelet Orientation www neptronic com Page 9 neptronic SK300 Steam Humidifier Installation Instructions and User Manual 1 35mm Diameter Pipe 1 Pipe 2 Pipes W W 10 minimum gt 24 minimum 250mm 600mm Illust
5. Steam Dispersion System Steam Dispersion System Selection In order to prevent the accumulation of condensation in air ducts Neptronic has designed four basic configurations of steam distribution systems to provide you with the most economical solution for any particular application Steam Absorption Manifold S A M Horizontal Duct The S A M system is suitable for installations where absorption distances are short less than 5 feet 1500mm and or low duct temperatures are in effect Illustration 6 Steam Absorption Manifold S A M Horizontal Duct www neptronic com Page 6 NE neptronic SK300 Steam Humidifier Installation Instructions and User Manual steam Absorption Manifold S A M E2 Horizontal Duct The S A M E2 system is suitable for installations where absorption distances are short less than 5 feet 1500mm and or low duct temperatures are in effect SAME2 are used in applications with restricted duct dimensions Illustration 7 Steam Absorption Manifold S A M E2 Horizontal Duct Steam Absorption Manifold S A M or S A M E2 Vertical Duct S A M or S A M E2 systems for vertical ducts are used where the absorption distances are normal and the requirement is for an economical and efficient solution S A M S A M E2 45 lt 45 Illustration 8 Steam Absorption Manifold S A M or S A M E2 Vertical Duct Multi Steam System
6. The Multi Steam system should be installed in critical locations in air handling systems particularly where absorption distances are very short less than 3 feet 900mm or low air duct temperatures are in effect The Multi Steam is custom made to the dimensions of duct or AHU Instructions to install Multi Steam system are described in a specific installation instructions manual enclosed with the Multi Steam system Illustration 9 Multi Steam System www neptronic com Page 7 NY neptronic SK300 Steam Humidifier Installation Instructions and User Manual Positioning S A M and S A M E2 Duct Mounting Steam manifold should be mounted and secured through the side of the air handling unit or duct Provision should be made for safe accessibility ideally with an observation light and window Ensure that the construction of the duct wall is suitable enough to support the steam pipe for the duration of the installation life Dimension of hole size in the duct must be as follows Steam Manifold Hole Size VA 1 35mm 2 51mm 2 51mm 3 78mm 4 minimum 102mm Y Illustration 10 Duct Hole Dimensions and Minimum Distance WARNING Risk of condensing Ensure that the minimum distance at the end of the manifold is at least 4 102mm from the top of the duct Recommendation for S A M Distribution Pipes Table 5 Recommendation for S A M Distribution Pipes
7. ooccoocccnccncccnccnnncnnccnncnncnnncnnononennonnnnononnanonnnnancnnonannnnonnns 23 DPI a is ie 24 a PP E EA eee ee EES EEE EE 24 Modo o SS AS 25 DER OC soe E A E E 25 SOU E 25 DONOSIO OCS ria arcsec o cceeiaahe dan Atul sacacmencucs te Valens tte vcoea cess raceaualeaqees E E rest seve adees 26 SS ba cmv OPE at TA 26 Sor A 28 MEM E BO 10 A O IU A II PP 28 PVN LAU Ee BO ostias o o deidad 29 A OC SN alioli 29 nn en ee ee een ee eee eee enn eee eee 30 Clean the Evaporation Chamber cccccccccceecccceececeeeeeaeeceeeeeeeeeeeeeseeeeeseeeeseeeesaeeeeseeceeseecessueeeeseecesseeeesseeeeseneesseeeeeas 30 Exploded View and Bill of Material cooccccocncoconncoconococonnnononoconnnonanononannnonnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnannnnnaninnas 35 P e OA 35 e E E E o o 36 TCU SS INO An o APP e Oo E O O E ts 38 NOTO Sai ca as Se A A o 43 www neptronic com Page iv neptronic SK300 Steam Humidifier Installation Instructions and User Manual Overview List of Accessories Supplied The following accessories are supplied with the SK300 Steam Humidifier e 2 sets of keys e 2 adjustable collars for the connection of the steam hose for each steam output e 1 female compression fitting 19mm hydraulic for the drain output of the evaporation chamber e 1 female compression fitting Y 13mm hydraulic for the drain output of the drip pan e 1 female fitting and a braided hose for the water supply connect
8. Plumbing Front VieW ooncccccocccncococcnnnoncnnconoconcnnononnononcnnononcnnonanrnnonancnnnnnas 17 Illustration 24 Weather Proof Enclosure Plumbing Side View ooccoooccccccoccncccoccnccconconconaconcnnnconononconnonannnnonannnconancnnnnnos 17 Illustration 25 One and Three Phase Power CONNEeCtIONS cccccooccnccconcnnccnnccncnnononnnnnncnnnonnnnnononcnnnnnnrnnnnnnnnnnonnrnrenanennnnnas 18 Illustration 26 Low Voltage Control Connections ccccconcncccocnnccconconononcnnnonanoncononnnnononnnnnonnnnnonannnnnnnnnnnnnnnannnnnnanancnnnns 19 Illustration 27 Connection to HRO20 humidistat or HRO20 with remote humidity sensor SHR10 or SHC80 19 Illustration 28 Humidity controlled by humidifier with SHR10 or SHC80 as Space sensor c occcoocccccnncnnccnnconcnnonononnanononas 20 Illustration 29 VAV system with humidity controlled by humidifier using Hi limit sensor and space sensor 20 Illustration 30 Humidity Signal 0 10 VdC occooccccccoccncccoccnnconoconcnnoncnnnnncnnonnnnnnnonnnrnnonnnrnnnnnnrnnnnnnrnnnnrnnrnnnrnnnnnrnnnrnronanrnnnnnas 21 Illustration 31 Humidity Signal 2 10 VC 0 0 tic 21 Illustration 32 Humidity Signal 4 20 MA ccccccccsssseccseseeeceeseeecsaseeeceaseeecsausecseeeecseseeessageeececeeeeessseesssgeeessaneeesseges 21 Illustration 33 Control Signal O to 10 V dG iso ii trio 22 Illustration 34 Control Signal 2 to 10 VG usina a dt 22 Illustration 35 Control Signal 4 20 M
9. RESET button located on the main PC board The front panel rocker switch may be left in the AUTO position during the start up cycle This will result in normal operation of the humidifier as soon as the start up cycle is finished Your humidifier is now fully operational www neptronic com Page 29 Ae neptronic SK300 Steam Humidifier Installation Instructions and User Manual Service The humidifier requires a regular maintenance service to ensure efficient and trouble free running Regular service involves cleaning the evaporation chamber and its components manually Generally frequency of cleaning can range from 2 months to once in a year However the cleaning frequency depends on the following specific factors e Quality of water e Frequency of automatic drain cycles e Demand placed on the humidifier All SK300 humidifiers are programmed for a 1000 hours of operation This is a default factory setting To view the number of hours the humidifier has run and the number of service hours press the menu button on the front panel several times till you view the information on the digital display At the end of 1000 hours of ostia the red LED 43 on the front panel starts blinking on off continuously This indicates that the humidifier is due for service The humidifier operates for an additional 50 hours and the LED continues to blink on and off At the end of the 50 additional hours the red LED stays on continuously Though the hu
10. Y 105 1 44 Water Supply e Water Inlet Specifications o Inlet water pressure 10 to 70 psig 0 7 to 4 8 bars o Maximum temperature 85 F 30 C maximum o 3 8 standard copper water line connection e A shutoff valve not supplied should be installed in the water supply line close to the humidifier to facilitate servicing e Itis recommended to install a standard water strainer in the water supply line www neptronic com Page 15 neptronic SK300 Steam Humidifier Installation Instructions and User Manual Water Connections Follow the steps below 1 Connect 3 8 10mm copper pipe to the bottom 3 8 10mm compression fitting Supplied 2 Place the swivel top 3 4 10mm fitting to the male threaded part of the valve and tighten it with fingers NM Caution Risk of damage to the valve Do not use wrench to tighten swivel Fill valve E Intern Base plate of A humidifier a Male threaded part of the valve Swivel top Compression a fitting y f Water line 3 8 10mm pipe by others Illustration 22 Water Supply Connections Drain Connections e Evaporation chamber water drain temperature 140 F 60 C e Standard hydraulic compression fittings a 3 4 evaporation chamber drain and a Y Pan drain e 2 hydraulic pipes located under the humidifier see
11. error messages Push Power Button The Push button is used to access program mode A Used to increase the control parameters of the humidifier Up and Down Arrow Buttons re Y Used to decrease the control parameters of the humidifier xt The humidifier is powered by electricity and the switch is at the AUTO 1 position Power Indicator O The humidifier is disconnected from the power supply www neptronic com Page 24 neptronic SK300 Steam Humidifier Installation Instructions and User Manual Options Description 3 The CHECK indication is normally off It will be activated as a warning during abnormal conditions of operation 3 blinking If the CHECK indication is on it means that maintenance is required The running hours have exceeded the Service hours See Service section on page 30 O No abnormal conditions of operation Check Indicator l l ug Indicates that the water supply fill valve is open Fill Indicator l l O Indicates that the water supply fill valve is closed Auto Position AUTO I Humidifier will generate steam based on demand from the humidistat Switch Auto Off Drain OFF Position OFF O Humidifier will shut off DRAIN Position DRAIN Humidifier will stop operating and the evaporation chamber will drain the water out This will be done typically at regular service 3X Indicates that the drain pump is on either as a result of an automatic drain c
12. from incorrect use General Warranty To view the complete Neptronic General Conditions of Sale and Warranty go to www neptronic com Sales Conditions www neptronic com Page i rf Installation Instructions and User Manual Handling and Lifting A Lifting or handling MUST be carried out by trained and qualified personnel Ensure that the lifting operation has been properly planned assessed for risk and that the equipment has been checked by a competent Health amp Safety representative and effective control measures are in place It is the customer s responsibility to ensure that the operators are trained in handling heavy goods and to enforce the relevant lifting regulations The Steam Humidifier MUST always be handled and lifted with care and should remain in its original packaging for as long as possible prior to installation The Steam Humidifier package may be carried using a forklift from the underside Caution should be exercised to ensure balanced load before lifting Unpacking The Steam Humidifier is shipped inside carton boxes or in a wooden crate Remove packing and skids prior to commissioning Lists Illustrations Illustration 1 Overview of the Humidifier ooooccncccocnncccccnnnccnononcnnnncnnononcnnnonnnonnonnnrnnonnrnnnrnnnnnnnnnnnrnnrrnnrnnrnnnrnnnonanrnnenanens 1 Illustration 2 Steam Humidifier with Space Distribution Unit ooccccoccccccnnccccnnnoncncconcncnonononononononnnnnnnn
13. off e lf LO is off the evaporation chamber filling is ordered and water supply valve opens e If LA is off no water is detected by the water level sensor the power to the elements is disconnected The three status L E Ds at the center left side operate as follows e FILL Indicates that the water supply valve is feeding water e DRAIN Indicates that the drain pump empties the container e CONT Indicates that the power is supplied to the elements and the humidifier is producing steam The TEST button should be used when commissioning the humidifier this will initiate a pre programmed start up cycle The start up cycle cleans the supply water and the evaporation chamber see Start up Procedure section This button also enables the setpoint control of the humidistat to humidifier display To access the Diagnostic Mode press the and buttons simultaneously This option is available only on Modulating model RESET button enables to bypass of start up sequence O HI O LO OO LA RESET TEST Co FILL CJ DRAIN CJ CONT TOP PCB O ci Illustration 39 Main PC Board www neptronic com Page 28 Installation Instructions and User Manual NE neptronic SK300 Steam Humidifier Modulating P C Board e The three jumpers at the center of the PC board Control Input are used for selecting the incoming control signal For more information refer to the Control Signals section e The three jumpers at the bott
14. openings located on the top front sides and rear of the cabinet Check the strength of the chosen support or wall bricks concrete stud partition wall on which the humidifier will be mounted See the Dimensions and Weight section to know the weight of the unit e Use the keyholes located on the back panel of the humidifier e Before proceeding to perform the wall mounting take off the Evaporation Chamber sub assembly see Service section e Drill holes for the upper anchors holes with eyelet into the support or wall as per dimensions specified in Table 4 Dimensions for Drilling Holes e The holes dimensions diameter and depth should by in accordance with the recommendations of the chosen anchors CE 4 Dimensions for Drilling Holes _ E in inches a ca SK304 8 202 5 3 16 498 19240616 19 o 516 SK306 0 254 8 203 24 625 8 203 0 254 Install bolt anchors if required e Screw on the 2 or 3 upper screws holes with eyelet of a minimum diameter of 10 6mm screws are not supplied e Leave a clearance between head screws and the wall in order to permit the mounting of the humidifier e Use the keyholes located on the back panel of the humidifier e Hang the humidifier on 2 or 3 screws It is preferable to keep the front door open during this operation Based on the size and weight of the humidifier you may need the help of another person e When
15. protects the sensor If the sensor has been operating correctly prior to the service shut down and has not displayed the PROBE DEFECTED and OVER HEATED errors do not clean the sensor Illustration 41 Water Level Sensor If the sensor has displayed the PROBE DEFECTED and OVER HEATED errors then clean the sensor To clean the sensor perform the following steps 1 Remove the chamber from the unit by unscrewing the two screws that hold the chamber These screws are located on the chamber itself Remove the chamber carefully without touching or damaging the water level sensor Clean the sensor using a soft cloth The water level sensor is covered by a thin layer of Teflon Any scratch or damage to this layer results in non functioning of the humidifier 4 Clean the protection chamber in the same way as the evaporation chamber www neptronic com Page 32 neptronic O Reattach the chamber to the cover by tightening the screws on top of the cover SK300 Steam Humidifier Installation Instructions and User Manual Probe protectors Spacer Compression fitting Gaskets Adjustment potentiometer Terminal connector A Y E AZ Evaporation chamber cover Brass washer Nut a Tefflon nut b Keep the opening clean water must flow through Illustration 42 Water Level Sensor and Protection Chamber Stage 3 Reassemble the humidifier 1 Mount the boiling chamber bac
16. the humidifier is positioned on the upper screws tighten the screws to secure the humidifier e If applicable install and secure lower screws www neptronic com Page 5 Ae neptronic SK300 Steam Humidifier Installation Instructions and User Manual Positioning and Mounting Weather Proof Enclosure Unit E 20 51cm minimum ean lt 24 60cm j minimum 0100 AL S UN H 24 60cm a wn p minimum gt Illustration 5 Weather Proof Enclosure Unit General Recommendations Plan a location that is easy to access and permits an easy inspection and servicing of the humidifier Do not install the humidifier where failure of the appliance could cause damage to the building structure or to other expensive equipment Maintain the following minimum clearances while installing to enable access for inspection and servicing Side Minimum Clearance 20 51 cm Both sides 24 60 cm 42 107 cm The humidifier is designed to be installed directly on the floor roof or a curb Provide a level solid foundation for the humidifier Ensure that the floor roof beneath the humidifier is water proof to withstand any water spillage during servicing or if a problem occurs Attach the SK enclosure securely and safely
17. water Corrective Action e Verify if the drain valve is open e Check if the shutoff valve on the water supply line is open e Verify the operation of the fill valve e Check that the fill valve strainer and the external strainer are not blocked Humidifier is always on Foam cycle Status Display FORMING CSCLE e Excessive foaming condition inside the evaporation chamber e Foaming sensor is grounded Corrective Action e Verify the quality of the supply water e Verify if chemical products were used to clean the evaporation chamber during maintenance Rinse the chamber properly with water e Check the setting of the Drain cycle Reduce the time between Drain cycles Humidifier is operating and the CHECK light is blinking Indicator Status Display BLINK Cause e The running hours have exceeded the Service hours Corrective Action e Service the evaporation chamber see Service section e Reset the Running hours to cancel the blinking of the CHECK light www neptronic com Page 40 neptronic SK300 Steam Humidifier Installation Instructions and User Manual Humidifier is not operating and the CHECK light is ON indicator Status Display e The electronic temperature sensor inside the water level sensor had sensed abnormal temperature e The quick connector to the water level sensor was removed while the humidifier was operating e The brown wire connected to the top left corner of the main PC board
18. A ccccccecccceceeeeeeeeeeeeeeeeeeeeeaeeeeeeeeeeeeeseeeeeeeeeeeeeeseaeeesaeeeeessaeeeeesaaeeeesaeseeesseeseeeeaes 22 Illustration 36 Common Alarm Connections ccccccccccseeeeeeeeeeeeneeeeeeeaeeeeeaeeeeeesaeeeeeseeseeesaaeeeeeseeeeeessaeeesaaeeesseeeeeesaess 23 Illustration 37 Controls Placement Steam Dispersed into a Duct or AHU oooccccccoccncccncccnconnconononcnnnonanonnonancnnononennnnnos 23 Illustration 38 Display Features Front Panel ccccccccseeeeeeeeeeeeeeecaeeeeeeeeseeeeseseeesaeeeseeeeeseaeeeseueesseeeesaaeeesanseesneeess 24 Illustration 39 Main PC Board cuina iio a ia inician ales jee ica 28 Illustration 40 Metal deposit dislodge during OperatiON oocccconnncconnnconcnccncnnconcnnnoncnnnnnnnnonnnnnnnnnnnnnrnnnnnrnnrnnrnrnnnrnnnnnnnss 32 www neptronic com Page ii SK300 Steam Humidifier Installation Instructions and User Manual oie dv N PT dopo Jota eg be gota E iaa secant E E E N 32 33 A OE A EO ET E E EET 35 Tables Table Dimensi s and Weight of SDU uuvcsoransten dida 2 Table 2 Weather Proof Enclosure Dimensions and Welight ooooncnccocnnncccoccnnononcnnonnarononnnnonnononcnnnnnnnnnnonancnnonancnnnnnos 3 Fable 3 Output and Power Consump tO meine aaron 3 Table 4 Dimensions for Drilling Holes cccccccccssceeceesseecceeseeecseseeecceaseeecsaseeessaeeecsaseeessaseeeessaeeeeseseeessageessseneeesseass 5 Table 5 Recommendation for S A M Dis
19. EN OVERHERTED Programming Mode To access the Programming Mode push the button To move to the next program function push the button twice Use the and y buttons to make any selection The changes made in the Program Mode are saved into a non volatile memory When the humidifier is in the menu driven Program Mode the normal operation of the humidifier is halted To resume normal operation exit the menu program mode by pressing the button until the alphanumeric display is clear L SETPOINT OUT 30 Default Out 30 Range 00 to 100 Out Output setpoint to HRO20 Int Internal To enable the humidifier display perform the following steps a Press theL and access the RUNNING function Step 5 Running 0645 Hrs The RUNNING message appears b Press and hold the TEST button located on the main PC board inside the electrical compartment for 10 seconds c Release the TEST button and then press the RESET button on the same main PC board Setpoint is now displayed on the humidifier display d Ifthe output is selected the setpoint is sent from the humidifier to the humidistat HRO20 e If SHR10 or SHC80 is connected with humidifier select Internal as this will allow you to set up RH setpoint directly from the humidifier www neptronic com Page 26 NE neptronic SK300 Steam Humidifier Installation Instructions and User Manual f To switch between the output and internal setpoints press and hold the TEST b
20. Illustration 21 Plumbing Connections must be connected to the drain pipe e Use standard copper hydraulic pipes and Y e Ensure that the drain pipe dimension is sufficient especially if more than one humidifier is evacuating into the same drain line www neptronic com Page 16 NY neptronic SK300 Steam Humidifier Installation Instructions and User Manual Weather Proof Enclosure Plumbing Connection Supply water 1 2 NPT 15mm Electrical control knockout hole Power supply Knockout hole Pan drain 1 2 15mm Main drain 3 4 20mm Silicone tubing provided for connection to side outlets Illustration 23 Weather Proof Enclosure Plumbing Front View Supply water 1 2 NPT 15mm Power supply knockout hole o Electrical control knockout hole Pan drain 1 2 15mm Main drain 3 4 20mm Illustration 24 Weather Proof Enclosure Plumbing Side View www neptronic com Page 17 Installation Instructions and User Manual NE neptronic SK300 Steam Humidifier Power Supply Connections Caution Risk of electric shock Disco
21. Installation Humidifier with SDU e The SDU should be installed in an environment where the air is relatively clean This will avoid the blower from getting clogged with dust e The humidifier should be mounted such that the SDU fan section is at least 78 2 meters above the floor e Aminimum clearance of 18 0 45 meters from the ceiling should be allocated to avoid ceiling and wall condensation e f additional ventilation is not present the fan should have a clearance from the ceiling of at least 54 1 35 meters Proper ventilation must be observed to avoid ceiling and wall condensation Without additional 18 ventilation 0 45 m 54 1 35 m 78 2 m Illustration 19 SDU mounted on Humidifier www neptronic com Page 13 Installation Instructions and User Manual NE neptronic SK300 Steam Humidifier Remote Installation of SDU The SDU can be installed in a different location from the humidifier remote SDU Follow the piping recommendations Mount the SDU to the wall on brackets not supplied do not drill mounting holes through the cabinet of the SDU Connect the steam hose s to the bottom inlet s of the SDU to the top of the steam outlet s of the humidifier Secure the hose s with the supplied hose clamp Connect the condensate hose to the bottom of the SDU to an open drain Connect the electrical wires from the SDU to the top of the humidifier Field wiring
22. SK300 150814 neptronic Steam Humidifier SK300 Series Installation Instructions and User Manual i l i neptronic SK300 Steam Humidifier o Installation Instructions and User Manual Foreword Neptronic Company Overview Founded in 1976 we re a private corporation that designs manufactures and distributes products for the HVAC industry Our product line includes intelligent controllers electronic actuators actuated valves humidifiers and electric heaters Our products are designed and manufactured by over 250 dedicated employees in our 7 500 m 80 000 ft state of the art facility located in Montreal Canada Using a vertical integration model our entire manufacturing chain is under one roof from software and hardware development to SMT circuit board assembly to sheet metal fabrication to product testing ensuring that our products are engineered to last We currently hold several national and international patents and with our continued commitment to research and development we provide innovative products and technologies for the ever evolving challenges of the HVAC industry Exporting over 70 of our sales we have an exclusive distribution network around the globe that provides comprehensive solutions to our worldwide customers About the Manual These installation and operation instructions have been developed to facilitate the installation of the Steam Humidifier e The strict application of these instru
23. al 4 20 mA High limit Humidistat Pressure Differential Switch 5 Vdc 4 20 mA O HI Co Lo O LA CM 4 20mA COMO 2 10V o o O 10V RESET TEST O E u CI DRAIN Jumpers on 4 20mA 2 10V TOP PCB MODULATING www neptronic com Illustration 32 Humidity Signal 4 20 mA Page 21 neptronic Control Signals Control Signal 0 10 Vdc SK300 Steam Humidifier Installation Instructions and User Manual High limit Humidistat Pressure Differential Switch 5 Vdc Extra jumper ma O 1 OV 0 o 2 10V Jumper on 0 10V TOP PCB MODULATING OC Control Signal 2 10 Vdc 9 10 Vcc High limit Humidistat Pressure Differential Switch 5 Vdc Extra jumper Jumper on 2 10V HUMIDITY INPUT 4 20mA Ea 2 10V aq 0 10V TOP PCB MODULATING Control Signal 4 20 mA 4 20 mA High limit Humidistat Pressure Differential Switch 5 Vdc Ga 4 20mA o oO 10V CO 10V Jumpers on 4 20mA 8 2 10V TOP PCB MODULATING Illustration 35 Control Signal 4 20 mA www neptronic com Page 22 Installation Instructions and User Manual NE neptronic SK300 Steam Humidifier Common Alarm Connections e A volt free contac
24. and display is blank Power Power Cause e The potentiometer contrast is set at the lowest setting e The display ribbon cable is not connected properly e TheLCD display is defective Corrective Action e Adjust the contrast of the display e Verify that the connections of the ribbon cable are properly secured and are on the right side red line on cable e Replace the LCD display item N www neptronic com Page 42 Notes neptronic 400 Lebeau blvd Montreal Qc H4N 1R6 Canada www neptronic com Toll free in North America 1 800 361 2308 Tel 514 333 1433 Fax 514 333 3163 Customer service fax 514 333 1091 Monday to Friday 8 00am to 5 00pm Eastern time
25. ctions will ensure the conformity of your installation and operation as per the manufacturer s recommendations e The application of these instructions is one of the conditions for the application of the warranty e The application of these instructions does not ensure at any time conformity to procedures regulation or local codes regarding electric installation and connection to local water supply This product has been declared to conform to the applicable Canadian and American safety standards and directives and bear the CSA c amp us mark The Certificate of Conformity CSA is available upon request with the manufacturer 2015 All rights reserved This document cannot be reproduced totally or partially by any means whether electronic mechanical photocopy recording or other without prior written authorization of Neptronic Electricity All work concerned with electrical installation MUST only be performed by skilled and qualified AN technical personnel such as an electrician or a technician with appropriate training The customer is always responsible for ensuring the suitability of the technical personnel Please observe the local regulations concerning the provision of electrical installations Correct Use Neptronic systems and its products are designed only for humidification use Any other application is not considered appropriate for the intended purpose The manufacturer cannot be made liable for any damage resulting
26. er expensive equipment The location should be well ventilated and the ambient temperature should not exceed 30 C 85 F Consider the total steam line length between the humidifier and the steam distributor based on the steam line material type For flexible steam hose total steam line should not exceed 16 feet 5 meters For longer distances use insulated hard piping For insulated hard piping the total steam line is determined by the humidifier capacity one equivalent foot for each lb n capacity of the humidifier 0 67m for each kg h with a maximum of 50 feet 15m For longer steam line runs consult factory Positioning The front panel and the right side electrical compartment should be accessible in order to permit servicing Leave a clearance of at least 48 1 25m to the front panel and 24 0 6m to the right side Mount the humidifier at a minimum height of 39 1m to 48 1 2m above floor level Leave a clearance of at least 10 0 25m under the humidifier for installation of water supply drain piping and electrical connections 39 to 48 1 to 1 2 m Illustration 4 Positioning the Humidifier www neptronic com Page 4 neptronie SK300 Steam Humidifier Installation Instructions and User Manual Wall Mounting Caution Risk of malfunction The humidifier must be placed at an equal level Caution Risk of overheating Do not block the ventilation
27. fier SHC80 K 1 COMMON Gh 2 24VAC OR VDC G 3 0 10 VDC OUTPUT To Term 4 SHR10 or SHC80 comuon 1 o 24 VAC OR VDC2 Gh Lo Term 3 0 10 VDC OUTPUTS amp Note when SHC80 is used as Hi limit Duct sensor control signal jumper should be placed on 0 10 Vdc on Modulating PCB see Control Signals section To Term 6 Illustration 29 VAV system with humidity controlled by humidifier using Hi limit sensor and space sensor www neptronic com Page 20 neptronic SK300 Steam Humidifier Installation Instructions and User Manual Humidity Signals Internal Mode Humidity Signal 0 10 Vdc High limit Humidistat 5 Vdc Pressure Differential Switch 0 10 Vcc Extra jumper O HI O Lo O LA D o2 10V EX O 1OV RESET TEST O a CU DRAIN Jumper on 0 10V TOP PCB MODULATING Humidity Signal 2 10 Vdc Illustration 30 Humidity Signal 0 10 Vdc 4 High limit Humidistat o qa oly ers TS 9 gt 10 10 am 8 gt So a 9 Y DEJE 7 Switch 5 Vdc 2 10 Vcc Pressure Differential Extra jumper O HI C1 Lo Co LA CM 2 10V o oO0 10V RESET TEST C FILL 1 DRAIN Jumper on 2 10V MODULATING Humidity Sign
28. i iio 2 Weather Proof ENC OSULE iii ie 3 Weather Proof Enclosure Dimensions and WelgQht cccccoonncnccccncnnconcnncnnncnnconoanennononcnnnnnaronnonncnnnnnnrnnonnnrnnronaniness 3 Output and Power Consumption HuMidifler ccoooccccoccnccocnnconnnoconnnononononanonononnnnnnnnononnnonnnnnonnnnnnnnnnnonnnonannnenananenos 3 Mechanical VS CAAT ON esac eect seen cts aian EE E E E EEEE A E aN E KEE a TE 4 General SCONES AU OWNS nto a E a E a 4 A E E eee actdee E E A 4 FO SIO MIN AP e PE In 4 A A o A e PO SOU SOU E E 5 Positioning and Mounting Weather Proof Enclosure Unit occcoonnnnccocncnccccccnnononcnnnoncononnanonnononcnnonnnnnnnonannnnnnnncnnonanens 6 GeneralRecommenda dos eto oir ica cd 6 Steam Dispersion Syste serrian irean EA E is di A EA iia ia ea cali 6 Steam Dispersion System Selection cccccccccccsssccccseseccccesseccceeseeeceegececsueeeessgeeessegeeeessugeeessageeeesauseesssuseeesseneeesseaes 6 Positioning SAM and SAM E2 caian ii lia doit 8 Placement of Steam Pipe in Horizontal Duct ooocccccccncccccoconcncconnnononnnnnnnnnnnnnnononnnnnnnnnnnnnnonnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnos 9 Placement of Steam Pipe in Vertical DuUCt cccocccccocnccccnncconnnoconononanonononnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnanenenanos 9 Steam Output ConneCUONS rs dicta 11 Installation eee mee eee ee ee ee ee re An A 11 General RECOMMENALIONS oooccccccnnccccnnccnnnncnonnncnnnnonannnonnnn
29. ion e 1 Installation Instructions and User Manual Visual Overview Heater element connector Internal Drain Cooler chamber o Evaporation chamber Evaporation chamber drain pump a Heater element Level sensor chamber OA ae ill Access door to Water supply valve Se mechanical compartment Electrical Control panel compartment Illustration 1 Overview of the Humidifier Available Options The following options are available when purchasing a SK300 humidifier Modell Description Suffix M SK320M Modulating control humidifier SF DI APPLICATION Humidifier for a system supplied with Deionised water or Reverse Osmosis water dissolved solids more than 1 ppm dissolved solids more than 0 028 ppm SDU REM Suffix B SK320M 600 3B SK320M 600 3P SF SK300 FANRELAY www neptronic com Page 1 neptronic SK300 Steam Humidifier Installation Instructions and User Manual Description of Components e Evaporation Chamber Assembly includes a metal cylinder and a cover equipped with one or several heater elements It is the most important part of the humidifier which produces the steam e Space Distribution Unit SDU Integrated steam distribution unit optional on certain humidifiers e Mul
30. ion chamber still contains few inches of water tilt it slightly to ensure that you do not spill this water on yourself Ensure that your footing is secure when lifting the evaporation chamber Evaporation chambers in large humidifiers such as SK340 and SK360 may weigh more than 35 Ibs 15 kgs Seek assistance from another person while removing the chamber 2 Uncouple the clamp connectors SK302 to 306 Unlatch the three latches located around the evaporation chamber SK310 to SK36 Turn the four or eight latches located around the evaporation chamber 3 Open the lid along with the elements inside O Do not clean the heating element They are self cleaning Any mineral accumulation breaks off and falls to the bottom during the course of operation www neptronic com Page 31 Installation Instructions and User Manual 4 neptronic SK300 Steam Humidifier Illustration 40 Metal deposit dislodge during operation e Remove the residue that has accumulated inside the chamber e Rinse the chamber with water only Do not use any acid or vinegar e Do not scrape off the walls of the chamber e Ensure that the fill drain aperture is not blocked 4 Check the gasket and ensure that it is in good shape Replace the gasket if it is dry torn or hardened 5 Replace the lid back on the chamber Open lid with heating element A o Check the gasket Water Level Sensor The water level sensor is encased in a chamber that
31. is not properly secured Corrective Action e Verify if the humidifier was operating below the standard water level and then replace the water level sensor item J e If connector was removed while power was still ON press the TEST button on the main PC board until the Drain light is turned ON Then press RESET once e Verify the connection of the brown wire to the main PC board Humidifier is not operating and the CHECK light is ON Status Display PROBE Check DEFECTED Steam Drain Check Steam Drain Cause e The water level sensor is damaged Corrective Action e Replace the water level sensor item J Humidifier does not drain and the CHECK light is ON Indicator Status Display a BLOLK Cause e During a Drain or Foaming cycle the water level sensor has sensed that the water level has not decreased Corrective Action e Verify that the drain pump the fill and drain water pipe connection the water level sensor chamber are not obstructed www neptronic com Page 41 neptronic SK300 Steam Humidifier Installation Instructions and User Manual Humidifier does not operate and display is blank Display blank Cause The following components can be the cause of this problem water level sensor item J main PC board item U modulating PC board item V or the LCD display item N Corrective Action Call factory for troubleshooting instructions Humidifier is producing steam
32. k into the unit 2 Tighten the compression brass connectors 3 Reconnect the steam hose 4 Reconnect the clip on level sensor Reconnect the clip on level sensor only when the power is disconnected If for any reason you did not connect the level sensor during the reassembling ensure to disconnect the power first and then reconnect Reconnect the high temperature safety cut out wire Reconnect the heating elements Turn the power back on at the disconnect switch or the breaker l Reconnect steam hose Tighten brass connectors Reconnect high temperature Reconnect heating elements safety cut out www neptronic com Reconnect clip on level sensor Turn the power on t Page 33 neptronic SK300 Steam Humidifier Installation Instructions and User Manual Stage 4 Restart and reset the humidifier 1 Power up the humidifier 2 Reset the humidifier by pressing the TEST and RESET buttons on the main PC board pamu DI 3 When you press the TEST button the humidifier goes into the drain mode The drain LED y illuminates indicating the drain mode Then press the RESET button 4 The humidifier now operates in the automatic mode and fills with water as soon as it detects a demand for humidity 5 To stop the red LED check light from blinking after the servicing do the following a Press the menu Ml button till the RUNNING HRS display appears b Press the and E buttons
33. lock Illustration 26 Low Voltage Control Connections Modulating Humidifier Humidity Control by Humidistat External Mode D ann HRO20 a HRO20 humidistat humidistat SK300 SK300 e ORN a E ii Control terminal o Control terminal AR SHC80 block wiring A block wiring A de Y COM S com 24 VAC 1 24 VAC 2 RH RH input MOD Pressure Differential switch Pressure Differential switch OODOOOOV O RH Illustration 27 Connection to HRO20 humidistat or HRO20 with remote humidity sensor SHR10 or SHC80 www neptronic com Page 19 E neptronic SK300 Steam Humidifier Installation Instructions and User Manual Humidity Control by Humidifier Internal Mode Humidity controlled by humidifier using SHR10 or SHC80 as space sensor SK300 Humidifier Gp 2 24 VAC OR VDC 53 3 0 10 VDC OUTPUT To Term 6 Illustration 28 Humidity controlled by humidifier with SHR10 or SHC80 as space sensor VAV system with humidity controlled by humidifier using SHC80 as Hi limit duct sensor and SHR10 or SHC80 as space sensor C Note If an interlock is not used a jumper must be installed between terminal F and 5 a SK300 Humidi
34. midifier continues to run it is important to service the humidifier at the earliest Clean the Evaporation Chamber Cleaning the Evaporation Chamber involves the following steps Stage 1 Shut down electrical supply and disassemble the humidifier Stage 2 Remove and clean the evaporation chamber Stage 3 Reassemble the evaporation chamber Stage 4 Restart the humidifier Pre requisite for cleaning the Evaporation Chamber Before you commence the cleaning procedure ensure that the evaporation chamber is cool and comfortable to handle as the evaporation chamber and its contents can be extremely hot and can cause burning If it is hot allow the evaporation chamber to cool by initiating a drain cycle 1 Press the rocker switch to the drain down position 13 The humidifier initiates a drain cycle and empties the evaporation chamber 2 Press the rocker switch upward to the Auto 1 position E The humidifier fills the evaporation chamber with water The Fill IM light is illuminated oF Press the rocker switch to drain down position again to empty the chamber At the end of the drain cycle check the temperature of the evaporation chamber To check the temperature open the front door of the humidifier and touch the chamber with the back of your hand If it is cool enough to handle shut down the electrical supply If not repeat the drain cycle till it is cool enough If further drain cycle is not required press the rocker switch t
35. must conform to local codes The fan of the SDU will operate for a period of four minutes after steam production has stopped to prevent condensation Avoid any obstruction of the ventilation openings on top of the SDU Without A additional 18 ventilation 0 45 m 54 1 35 m Field wiring by others Field piping _ not supplied 2nd pipe for SDU2 or SDU3 Illustration 20 SDU Remote Installation Maintenance of the SDU Clean the blower if there is an accumulation of dust www neptronic com Page 14 E neptronic SK300 Steam Humidifier Installation Instructions and User Manual Plumbing Connections Plumbing Installation should conform to Local and National Codes Any installation work must be carried out by suitably qualified personnel The SK300 humidifier can operate with soft or hard water Therefore for normal operation pre treatment of water is not necessary i A 7 SK300 Humidifier 3 c o o E g B as aa Dr FEA o o o Ex E o AR 1 2 15mm 3 4 22mm Minimum 20 Minimum 8 Minimum lt 500mm 200mm building Side drain of 1 4 40mm Illustration 21 Plumbing Connections Table 6 Dimensions for Plumbing Connection E inches mm SK340 e 7 179 1 44 9 3 4 248 4
36. ng The steam separator S trap should be installed higher than the static pressure of the system by at least 2 51 mm Illustration 17 Steam Output Connection Incorrect Installation www neptronic com Page 11 neptronic SK300 Steam Humidifier Installation Instructions and User Manual Use S separator when ceiling space is limited and you need to create 15 slopes Use S separator when the steam distributor is lower than the humidifier steam outlet Illustration 18 Steam Separator S trap Installation e The total length of the steam hose or rigid pipe should not exceed 16 feet 5 meters Longer runs will result in added condensation losses and may result in system malfunction Whenever possible use insulated copper piping Flexible steam hose should be used for short runs up to 16 feet or 5 meters or for interconnecting between the rigid pipes e If you are using a rigid copper pipe use insulation to diminish condensate build up Position of Steam Output a o Modes SK304 4 5 16 110 4 13 16 122 SK306 Medium Cabinet Modes K L M SK310 SK320 0 5 9 32 134 4 102 55 8 143 www neptronic com Page 12 J neptronic SK300 Steam Humidifier Installation Instructions and User Manual Large Cabinet AA ass O N
37. nn anne n nn n nn nnnnnnnnnnnnnnnnnnnnnnenananenanenns 11 eE 0 AAA A 12 SES li id E ee er oe 12 MECA si te go ee eee eee ee ere ee ee ee ee 12 Large ADU faces cere se case che ne os sete eye cs Sashes toe cee lene dats essed dese ydeialsoassn dems seieecamadetedanedeck tame fen paasteeeiSubateeedeccsasaes 13 www neptronic com Page iii NE neptronic SK300 Steam Humidifier Installation Instructions and User Manual Installation Humidifier with SDU oooccconcnccccnncccnncoconococonnncoonnncnnnocnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnenananenass 13 Remote VS Teal ATIC OS aa ec sae cp E E EEE EN EE EA 14 ME ICE ofthe SDU A 14 Allo ce C ONNGOC ION PI e el O O O E cued tare cesescan acesenadase E 15 Water SUPO susi E 15 Water Connections erari a E E E boreieneeees 16 Drain A ONES SONS caste detest sic era co oe Sel eg Ey EEE EE T E e ATE Selec ese dido 16 Weather Proof Enclosure Plumbing Connection ccccccoccncccoccnnccnnccnnononennonocononnnnnnnnnnncnnononrnnonnnrnnnonnnrnnnnnnrnronnnrnnnonaninns 17 Power Supply CONE CUA tensos sn TA ea aa Naaa E NK ea eee ree 18 Low Voltage Control Connections ccccccceseeecceeseeceeseeecseuececsauseeessuseeecsaaeeecsauseeessaeessageeessaseeeesseeeessageesssgeeessagss 19 ONOFF AUN eee ee ee ee me ee tado 19 PS LENT ACMA Gy FNMA AS eens PA EII SA 19 Common Alarm CORMMG CU OMS serrure o o TA a a a a a eaha 23 Controls Placement Steam Dispersed into a Duct or AHU
38. nnect the Humidifier from the electric supply before proceeding with the connection WARNING Risk of fire Do not interchange the power terminal block designated L1 L2 and L3 with low voltage terminal block designated 1 2 and 3 e The wiring to the humidifier should be done by a qualified electrician and should conform to the procedure regulation and local codes e Use only copper conductors e An external over current protection and disconnect circuit breaker should be installed on the supply adjacent to the humidifier e A knock out not supplied should be installed at the bottom of the electrical compartment of the humidifier for strain relief of the supply cable e Ensure that the size of the wire conductors is appropriate for the current supplied e Ensure that each terminal connection is properly secured e The ground conductor should be equipped with a ring terminal and should be connected directly to the electrical panel on the indicated location N Lu YN lt T BL L2 GND aL One Phase Three Phase Connection Connection Illustration 25 One and Three Phase Power Connections www neptronic com Page 18 Installation Instructions and User Manual F neptronic SK300 Steam Humidifier Low Voltage Control Connections ON OFF Humidifier Humidistat Pressure Differential switch Low voltage control limit terminal block High voltage power terminal b
39. nnnnnnnnnnnnononcnnnns 2 Illustration 3 Weather Proof ENcloSure ccccccssseccccsseeceeseeecseseecceeuseeesaueeessageessageeesseueeeesseaeeecsageeeessuseesssaseeessageees 3 Illustration 4 Positioning the HumMidifier cocooocnococcnnnccconnncnconnncononcnnnnoncnnnnnnnnnnonannnnonnnnnnnnnnnnnnnnnnnnononnnnennananennanoss 4 Illustration 5 Weather Proof Enclosure Unit oocccccconcnncccnncnconocononnncnnononcnnnonnnnnnononcnnonnnrnnnnnnnnnnnnnnrnnnnnnrnnnnnnrnnnonanrnnenanens 6 Illustration 6 Steam Absorption Manifold S A M Horizontal Duct occooonnnnccccccncccoccnnononononnncnnnnnonononnonnnnnnnnnnnnonarennnnnnons 6 Illustration 7 Steam Absorption Manifold S A M E2 Horizontal DuCt occoconncnccccncnnccccnnccnnconcnnonenonnnnnnnononcnnnonanincnnnnons 7 Illustration 8 Steam Absorption Manifold S A M or S A M E2 Vertical DUCT ococccooncnncccocccnccnccncononcnncnoncnnnonanencononons 7 MUStration 9 MUI Steam SyS smilies diesel 7 Illustration 10 Duct Hole Dimensions and Minimum Distance ooccccoccnccnccnccnccccnncncnnncnconnncnnnnnnnnnnnnnncnnnnnrnnronnnrnnnrnnnnaninnns 8 Illustration 11 1 85mm Diameter Pipe Placement Horizontal DuUCt cccoooccncccoccncccccnncnnononcnnnncnnnnnaconconanencnnanons 9 Illustration 12 2 51mm Diameter Pipe Placement Horizontal DuUCt cocoooccnccconcnccnoconcnnnncnnononcnnnnnnnonconanencnnonons 9 Illustration 13 Eyelet Orienta
40. o OFF O position www neptronic com Page 30 SK300 Steam Humidifier Installation Instructions and User Manual neptronic Stage 1 Shut down electrical supply and disassemble the humidifier AN Caution Risk of electric shock Shut down the electric supply of the humidifier Disconnect the power at the External Breaker Fused Disconnect before commencing servicing 1 Press the Power 1 button on the control panel to switch off the humidifier 2 Remove the power supply to the humidifier at the disconnect switch or the breaker Disconnect the power connector to the heating elements SK302 to 306 Unscrew the connector SK310 to SK36 Squeeze the locking ears of the high voltage connector and pull it apart 4 Remove the clip on level sensor board located on the chamber cover Disconnect the wire connector to the high temperature safety cut out Loosen the steel clamps that hold the steam hose in place with a 5 16 8mm nut driver or a standard screw driver T Loosen the compression brass connectors using an adjustable wrench and a 11 16 17mm key Unscrew the brass nut and slide it back Remove clip on level sensor Disconnect power Disconnect heating elements small units big units small units big units Disconnect high temperature safety cut out small units big units Loosen steel clamps Stage 2 Remove and clean the evaporation chamber 1 Slide out the boiling chamber O The evaporat
41. o SK360 Table 11 Model Heater Element Transformer and Voltage Description D R Voltage Heater element Transformer Part number SP 5105 SP 5106 SP G4101 S X Xx Transformer Contactor SDU Transtormer K309 SK304 SK306 SK310 SK314 MB 20evis MSIE E ee E ET O 600V 3 SW5951 _ SP334t SP30277 o ooo sk360 B0VIB SW5982 SP3321 SP 3027 2x SP 3341 SP 3220 2x o Available please consult factory www neptronic com Page 37 neptronic SK300 Steam Humidifier pP Installation Instructions and User Manual Troubleshooting Humidifier does not operate Power Off Display blank e The humidifier is not powered e The low voltage fuse is open e The high temperature switch is open e Wires harnesses inside the humidifier are not secured properly Corrective Action e Check for the main power supply and fuses e Check the transformer and the low voltage fuse e Check the high temperature switch the wires harnesses and the main PC board Humidifier does not operate Power On Status Display Check Check Cause e The rocker switch is at the OFF position e Wire harness from the LED display panel to the main PC board is not secured properly Corrective Action e Press the rocker switch to the AUTO position e Check the white color wire harness e Press the RESET button on the main PC board www neptronic com Page 38 neptronic SK300 Steam Humidifier
42. odel Description and Part Numbers Hem Description Model Partnumber A Container of evaporation chamber ora ceubas C Evaporation chamber gasket D Heaterelement See Table 11 Model Heater Element Transformer Heater element B and Voltage Description E Level sensor chamber Washer elements SK302 to SK360 SP 1005 S S hex Jam nut elements SK302 to SK360 SP 2330 High temperature switch klixon SK302 to SK360 SP 3035 Foam sensor J Water level sensor L Fill and drain trap assembly Silicone tubing Y Silicone tubing Y SK302 to SK360 PCV tubing 2 O AUTOIOFFIDRAIN rockerswich SK30210SK369 SWSKSWITCHASSY P Terminal block and igh votage comnectors SK30210SK380 O IO E 7 E E asta Refer to Table 11 Model Heater Element Transformer and Voltage Description S Contactor Refer to Table 11 Model Heater Element Transformer and Voltage Description SP 3102 T Solid State Relay SP 3103 125 A SP 3105 Main Printed Circuit Board SK302 to SK360 NW SK300MAIN TEST Modulating Printed Circuit Board SK302 to SK360 NW SK300MODULSS SDU I SW FANSDU1 RET SDU fan SDU II SW FANSDU2 RET SDU III SP 3010 Refer to Table 11 Model Heater Element X Transformer is Transformer and Voltage Description www neptronic com Page 36 ee tJ neptronic SK300 Steam Humidifier Installation Instructions and User Manual Description E SDU and SDU 2 Y Fuse inside SDU SDU 3 Drain pump SK302 t
43. om of the PC board Humidity Input are used for selection of the incoming humidity signal For more information refer to the Humidity Control by Humidifier Internal Mode section Start up Procedure We recommend to strictly following this Start up procedure in order to avoid any anomaly resulting from wrong cleaning of the components In case of problem or discrepancy see the Troubleshooting section 1 2 3 Ensure that the mechanical electric and plumbing connection are done and secured Ensure that the low voltage control circuit is done and correct Turn the water shutoff valve on outside the humidifier and check that the drain connections are connected to the main drain line with sufficient diameter Turn the power on to the humidifier from the circuit breaker disconnect switch The POWER indicator should be on Push the TEST button located on the main PC board This PC board is located in the electrical compartment This will start up a pre programmed start up cycle This start up cycle will test functions of the humidifier and will flush out any dirt in the humidifier and supply lines This cycle lasts for about one hour o The front panel rocker switch will not affect the performance of the start up cycle o Inthe case of modulating humidifier there must be a demand signal of at least 50 for the start up cycle to operate correctly o To bypass the start up cycle at any time and proceed to normal operation press the
44. ption Modulating humidifier No analog signal to the humidifier On Off humidifier NO DEMAND Humidity level has exceeded the setpoint of the humidistat Humidity level has exceeded the setpoint on the high limit humidistat Airflow is not detected by the air pressure switch Humidity level has exceeded the setpoint on the high limit humidistat Airflow is not detected by the air pressure switch modulating humidifier only DRAIN CYCLE The humidifier is in the automatic drain mode CONTACT DELAY 15 second delay for the power contactor to be activated The temperature inside the container has exceeded the boiling temperature The humidifier has shut off automatically The water level sensor is not operational The humidifier has PROSE RERE as shut off automatically NO LEVEL Water has not reached the level probe FOAMING CYCLE The Anti Foam Energy Conservation AFEC has detected foam The humidifier drains for a few minutes and returns to normal operation DRN PROB BLOCK The humidifier drains but the water level does not decrease the humidifier has automatically shut off VERIFY RH SENS Signal from either SHR10 or SHC80 used as space sensor is lower than 0 49 Vdc to terminal 6 of humidifier There might be a connection problem or a defective sensor VERIFY DCT SENS Signal from SHC80 used as Hi limit duct sensor is lower than 0 49 Vdc to terminal 4 of humidifier There might be a connection problem or a defective sensor SAFETY OP
45. ration 14 1 85mm Diameter Pipe Placement Vertical Duct 2 51mm Diameter Pipe 2 Pipes 3 Pipes W W 24 minimum 36 minimum 600mm 900mm Illustration 15 2 51mm Diameter Pipe Placement Vertical Duct www neptronic com Page 10 NE neptronic Steam Output Connections Installation SK300 Steam Humidifier Installation Instructions and User Manual 1 1 2 4 15 J L Humidifier NOV PS Ha A e 1 Clamps 2 Flexible Hose 3 Rigid Copper Pipe 4 Insulation 5 Steam Distribution Manifold 6 Duct 7 Long Radius Copper Pipe Illustration 16 Steam Output Conne General Recommendations ctions Typical Installation Follow these general installation rules in order to avoid any condensation accumulation which can cause severe water accumulation in the duct or a humidifier malfunction A Caution Risk of malfunction Avoid kinks sags and areas where condensate can be trapped The slope of the steam hose rigid or flexible should not be less than 15 7 horizontal lengths for 1 vertical length in order to ensure continuous drainage of condensation back to humidifier or to a steam trap The lowest point of any steam hose or rigid pipe must be the humidifier If the humidifier cannot be the lowest point of the piping install a steam trap s S Type at the lowest point s of the steam supply pipi
46. simultaneously for 20 seconds or until the hours are zero on the display 6 Set the drain cycles for every four hours of operation This is the factory default setting and is recommended for city water e Press the menu E button till the DRAIN HOURS appears on the display After the water boils for four hours in the chamber it is laden with minerals and solutions This affects the humidity output and the efficiency of the humidifier So dilute the boiling water by initiating a drain cycle www neptronic com Page 34 neptronic SK300 Steam Humidifier Installation Instructions and User Manual Exploded View and Bill of Material Exploded View ii A SDU Cabinet Plastic gril Steam Trap A ras a 0 Q O_o _ff _t 888 Jos J E om ice O Evaporation chamber base SK310 to SK360 Evaporation chamber base SK302 to SK306 Illustration 43 Exploded View of Humidifier www neptronic com Page 35 neptronic SK300 Steam Humidifier Installation Instructions and User Manual Bill of Material Table 10 M
47. t is provided in the form of both a Normally Open and Normally Closed contact that will switch on in the event an alarm is activated on the SK300 humidifier e Wherever possible it is recommended to use the Normally Closed contact This contact will open in the event of a humidifier fault e These contacts should be used to switch a low voltage ideally 24V with a switching current of no more than 3 Amps 112 w o S a e 9118 aw sl 4 5 7 gt 9 S a 9 110 j 9 0 a Common Normally Open Normally Closed Illustration 36 Common Alarm Connections Controls Placement Steam Dispersed into a Duct or AHU A typical humidifier control system should include the following along with the humidifier e Awall or return duct humidistat e A high limit duct humidistat e An air proving switch Placement of these devices is critical to the proper operation of the overall system e The return duct humidistat must always be located before any outside air intake in order to ensure accurate sensing of the air from the humidified space e Alternatively a room humidistat can be used The room humidistat should be located on an inside wall or column It should not be near any discharge air from supply ducts or sources of heat or cold e The airflow switch must be positioned to accurately open on a loss of air flow to prevent the humidifier from running when there is no air to absorb humidit
48. ti Steam System Custom made system for steam distribution This system is designed to allow very short absorption distances less than 3 feet or 900mm applications e Steam Absorption Manifold S A M Steam manifold adapted to air duct size allows steam absorption in relatively short distance less than 5 feet or 1500mm applications e Steam Absorption Manifold with 2 Eyelets S A M E2 Steam manifold with two eyelets adapted to applications with restricted air duct dimensions that allow steam absorption in relatively short distance less than 5 feet or 1500mm applications Humidifier with Space Distribution Unit D SDU Space Distribution Unit option Steam Humidifier E A III Illustration 2 Steam Humidifier with Space Distribution Unit Dimensions and Weight Table 1 Dimensions and Weight of SDU a of the Cabinet inch mm SDU Weight Ib kg rc Empty Full ot MIO SDU 1 Era 23 2 997 18 7 470 11 292 5 Y 140 29 737 44 20 57 26 20 9 SK306 OPTY 28 Ya 28 724 12 318 6 165 35 890 115 52 m SK320 g l A Koo 28 724 12 318 12 324 41 1048 66 30 115 52 45 99 13 IA ros a213 1240618 Th moo 205 08 www neptronic com Page 2 neptronic SK300 Steam Humidifier Installation Instructions and User Manual Weather Proof Enclosure
49. tion cccccceccccsssccccsesececceseeccsaseeecsaueeecsaaseeessueeessageeecsagseeessaseesssaueeecsageeeessgeeesssageeessageees 9 Illustration 14 1 85mm Diameter Pipe Placement Vertical DUCT o cccccocncnccccnnnncononcnnonononnnnnncononanonconanennnnnos 10 Illustration 15 2 Y 51mm Diameter Pipe Placement Vertical DUCT occcccocncnccconcnncononcnconononnnnnacononanonconanennnnnos 10 Illustration 16 Steam Output Connections Typical InstallatiON oooccccconncoccnococcnccononoconnnononnnononnnonannnnnncnononenos 11 Illustration 17 Steam Output Connection Incorrect Installation oooccoonnnccccnnnccnnnnconnnoconnnononnnoncnnonnnnnnononononenos 11 Illustration 18 Steam Separator S trap Installation ooooncccconnnnncononcnnonononnnnnnononnnnononnonnnnnnonnnnnnnannnnonnnrnnonanennnnnas 12 Illustration 19 SDU mounted on HumMidifler ooocccccoocnnccconncoconnnnncnnnnnnonannncnnonnnnnnnnnnnnnnnnnnonannnnnnnnnnnnnnnnnnnnonannncnnnns 13 Illustration 20 SDU Remote Installation oooccccccccnnccconnnncnonnnononnnnnnnonnnnonannnnnnnnnnnnnnnnnononnnnnnnnnnnnnnnnnnnnnnannnnnnnos 14 Illustration 21 Plumbing COAMCCUOIS succionar 15 Illustration 22 Water Supply CONNECTIONS occcccoccncccccnconcnnconcnncnnnnnnnnnonnnononnnnonnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnenanenenaninns 16 Illustration 23 Weather Proof Enclosure
50. tribution PipesS ooccccoccncccccnccccnnconcncononnnonnnnononnnononnnnnnnnonnnnnnnnnnnnnnnnnononencnnnnns 8 Table 6 Dimensions for Plumbing Connection ooccccccoccnncccncnnnononcnnonnncnncnnnncnnononcnnnnnnrnnnnnnnrnnnnnnrnnnnnnnnnronnnrnronnnrnnrnnanines 15 Table 7 Humidifier Front Panel Display Description cooccccccccnccccnncccnnnconcnnononononnnnnnononononnnnnnnnnnonnnnonnnnononcnononencnnnos 24 Table 8 Scroll Mode Display Description cooocccccccncoccnccocnncconnnononononanonononononnnnonnnnnnonnnnnnnnnonannnnnnnnnnnnnnnnnnnnnonanenenanos 25 Table 9 Diagnostic Mode Display DescriptiONS ooocccconcccccncncooccnconcnnnoncncnncnnonnrnnnnncnnnnncnnnnnnnnnnrnnnnnrnrnnnrnrrnnrnrnnaranoness 26 Table 10 Model Description and Part NUMberS oocccocccccccccocnoconncocnononccnonnonononnnonannnnnnnonnnnnnnnnnnnnnnnnennnnnnnnnnannnnnnenans 36 Table 11 Model Heater Element Transformer and Voltage Description occcoocccccccnccccnnncconnconnnnnonnnononenonononenonos 37 Contents Ale A ee e RP nO Sn A A T ji A E E E E S 1 Listrol Accessores SuUppllCd rs eiii at sedans aede se 1 A PP E A eae enue canes O A E ET 1 A nn ren EEA E A A EN I EE ET 1 DESCIPAONO COMPONER ea E E EE E EE E E E E E tides 2 Humidifier with Space Distribution Unit ooccccconncoccnncoccnnnencncconnnononnnonannnonnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnonanenenanenes 2 Dimensions and Welgi icteric ori d
51. utton located on the main PC board inside electrical compartment till the value changes Z SETPOINT VAV OFF Default OFF Duct humidity control disable Range OFF Duct humidity control disable High limit duct humidity setpoint value 65 This option appears only if you have selected Internal at Step 1 Setpoint out 30 Set the VAV value setpoint If the setpoint VAV is set to OFF humidity signal from the VAV duct will not be considered If the setpoint VAV is set the humidity output will be controlled by both the space demand and high limit duct humidity signal To add a setpoint VAV value perform the following steps a Press and hold the TEST button located on main PC board inside the electrical compartment until OFF disappears b Select the VAV setpoint desired value by using the and y buttons on the control panel J PROPBRAND 3 Default 3 Range 3 to 9 This option appears only if you have selected Internal at Step 1 Setpoint out 30 Select the desired value for proportional deadband Select the desired proportional band value by using the and y buttons on the control panel 4 DRAIN 8 HRS Default 4 hours Range 1 to 24 hours Increment 1 hour Select the frequency for drain cycle Generally the harder the water is higher the drain cycle frequency should be Drain cycle setting does not affect the AFEC system 5 RUNNING 0695 HRS Number of running hours information display onl
52. y e The high limit humidistat must be positioned far enough 6 minimum 1 8m downstream of the steam dispersion manifold s to prevent it from getting wet but still allows it to accurately prevent over humidification of the duct that could result in condensation 6 minimum 1 8m gt m ED z O O aL A Nx an A Ml ic Return SHC80 Air flow switch A U _ Humidity sensor Steam dispersion Or room HRO20 manifold o re humidistat High limit SHC80 for lee VAV application only High limit humidistat Illustration 37 Controls Placement Steam Dispersed into a Duct or AHU www neptronic com Page 23 Installation Instructions and User Manual 4 neptronic SK300 Steam Humidifier Display Up rrow Button Down Arrow Button Push Button Power Indicator Check Indicator Fill Indicator Steam Indicator Auto Off Drain Illustration 38 Display Features Front Panel Front Panel The following are the display features of the Front Panel and their description Table 7 Humidifier Front Panel Display Description a oa Alphanumeric Display The Alphanumeric display indicates all the operation parameters and
53. y Indicates the number of hours the humidifier has been running since the last servicing After every service reset the number of hours of operation to zero by pressing the 4 y buttons simultaneously for 15 seconds This will reset the number of hours of operation to zero 6 SERVICE 1000 HRS Default 1000 hours Range 400 to 1500 hours Increment 100 hours Set the number of hours of operation before the humidifier calls for servicing Generally the harder the water is the lesser the number of hours of operation before servicing can be initiated T LOCA UN 80 PUR Default 100 Range 0 to 100 Increment 1 Select the output span the rate at which the humidifier delivers 80 of the maximum rated output at full demand www neptronic com Page 27 NE neptronic SK300 Steam Humidifier Installation Instructions and User Manual Control P C Board The Printed Circuit board designated PCB970819 is common to all SK300 series humidifier ON OFF or modulating humidifier This PC board is equipped with an advanced microprocessor which controls all the humidifier functions The Printed Circuit board which is directly connected onto the main PC board is installed only on modulating model suffix M Main P C Board There are three water level L E Ds on the upper right hand side They indicate the relative water height as sensed by the water level sensor e If Hl is illuminated the water supply valve shuts
54. ycle or because the front panel switch is manually set to DRAIN Drain Indicator O Indicates that the drain pump is off Modes Description OFF Mode When the rocker switch is in the OFF position the display shows the model of the humidifier and the program version number as follows NEP 3 4 SATION Scroll Mode When the rocker switch is in the AUTO position the display scrolls the following information every 6 seconds Table 8 Scroll Mode Display Description Display and Description Nts Only on modulating humidifiers suffix M RH 5 DCT 68 ae If no High limit Duct sensor is installed the second line is left Display Space and Duct Relative Humidity readings blank LB HR 30 ae l Quantity of steam produced by the humidifier The actual output of the humidifier at that moment is 30 lb hr ALARM LEVEL Below this water level the humidifier shuts off and the water Low water level supply valve is activated until sufficient level is reached CONTROL LEVEL l l Water level scontrellcd The water supply valve is activated below this level HIGH LEVEL l Wallera maximun ievel The water supply valve is automatically deactivated www neptronic com Page 25 he neptronic SK300 Steam Humidifier Installation Instructions and User Manual Diagnostic Mode When the following conditions occur the diagnostic messages override the scrolling information Table 9 Diagnostic Mode Display Descriptions Display Descri
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