installation and service manual
Contents
1. swivel top compression fitting A fig 8 A 3 8 copper pipe 1 Connect 3 8 copper pipe to the bottom 3 8 compression fit ting 2 Finger tighten the swivel top fitting to the male threaded part of the valve Do not tighten with a wrench 4 40 water connections The water inlet specifications are 10 to 70 psig inlet water pres sure 30 C 85 F maximum tempera ture 3 8 standard line connection 3 8 0D TR l 3 8 copper fitting compression supplied with unit copper water a SK300 V neptronic humidification manual installation of steam hoses steam pines steam absorption In order to prevent the accumulation of distribution to provide the client with the condensation in air ducts NEP has most economical solution for any particu designed 4 basic configurations of steam lar application fig 9 f w A MULTI STEAM system V The MULTI STEAM system is to be installed in critical locations in air handling systems particularly where absorption dis tances are very short less than 3 feet or low air duct temperatures are in effect fig 10 B SAM AS steam absorption manifold The SAM is to be installed where absorp tion distances are short less than 5 feet and or low duct temperatures are in effect note for critical absorption distances contact the factory at 1 800 361 2308 or 1 514 333 14332. 5 40 installation of S A M or REGULAR steam distribution pipes 1 4 d ii 15 E 1 typical rigid installation we 1 clam b 2 flexible hose rigid copper pipe insulation steam distribution manifold duct O URW SK300 fig 23 Notes Ensure that the flexible hose is not kinked A minimum slope of 7 horizontal to 1 vertical lengths must be respected in order to ensure drainage of con densation back to the humidifier or to the steam trap typical flexible installation 1 2 3 4 clamp flexible hose steam distribution manifold duct fig 24 5 50 SAM or Regular steam distribution pipe requirements SK300 model 302 304 306 310 314 320 330 340 360 max output Ib hr 6 12 18 30 40 60 90 120 180 max output Kg hr 2 7 5 5 8 14 19 28 41 56 82 35mm 1 3 8 pipes 1 1 1 1 1 2 2 54mm 2 1 8 pipes 2 3 min pipe length mm 300 300 300 600 600 600 750 750 750 min pipe length in 12 12 12 24 24 24 32 32 32 max pipe length mm 600 600 600 1200 1200 1200 1500 1500 1500 max pipe length in 24 24 24 48 48 48 64 64 64 max static 5 5 5 5 5 5 5 5 5 pressure in W G 1245 1245 1245 1245 1245 1245 1245 1245 1245 note for higher static pressure please contact the factory table 6 a SK300 V neptron
3. It_is necessary to mount the humidifier directly to the wall studs For screwing into wooden studs drill 3 32 pilot holes into the studs and use no 10 x 1 wood screws preferably of the round head type Screw in the upper screws Supplied by others until Ya to Y of the screw head is left projecting and screws are firm enough to carry the cabinet weight prior to tightening W ith the mechanical door open and according to the cabinet size and weight and with the assistance of another person hang the upper keyhole slots over the projected screws Carefully lower into position flat against the wall and tighten On larger units SK310 and up also apply lower screws Tighten all screws securely 3 33 mounting holes dimensions SK SK a a ca ga 10 12 5 3 16 8 102mm 267mm 10 622mm 27 502mm 19 LE LO E PEI 24 5 8 279mm table 3 brick concrete solid block The wall must be sufficiently solid to provide a secure anchorage Use 14 threaded x 2 minimum length stud bolt anchors which provide an externally threaded stud protruding from the wall as per instructions Drill hole with size and depth to bolt Drive in stud bolt anchor With stud bolt anchors securely in place position the mounting keyholes over the protruding studs and carefully lower the humidifier into position against the wall surface According to the cabinet size and weight use anoth er person t
4. fig 43 indicators and switches 1 Alphanumeric Display operates in 3 modes A SCROLL M ODE Continuously indicates RH ACTUAL STEAM OUTPUT and WATER LEVEL B DIAGNOSTIC MODE Indicates some operational parameters such as time delay on power contact or abnormal conditions such as overheating in the container end of season automatic drain service hours etc C Menu DRIVEN Is used to change operational parameters such PROGRAM M ODE as R H set point frequency of drain cycles output capacity adjustment 10 100 Menu Up Down Button Controls MENU BUTTON Is used to place the SK300 in the Menu DRIVEN PROGRAM M ODE Up Down BUTTONS Are used to increase or decrease the controlled parameters of the humidifier As long as the main power of the unit is connected the POW ER indicator will be lit irrespective of the position of the rocker switch fig 43 7 The CHECK indication is normally off It will go on as a warning against abnormal conditions of operation For details consult the Alphanumeric Display fig 43 1 The FILL indication lights when the water supply fill valve is open The STEAM indication functions differently for modulating and on off units In on off units the STEAM indicator lights when the contactor is closed and steam is being generated In modulating units the STEAM indicator blinks on and off in proportion to the percentage of steam output the humidif
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6. SK302 to 306 cover only 3 phase SK310 to 314 cover only SK320 to 330 cover only SK340 cover only SK360 cover only SK302 to 306 container gasket SK310 to 330 container gasket SK340 360 container gasket elements c w washers F SP 3309 SP 3300 SP 3320 SP 3340 SP 3309 SP 3300 SP 3300 SP 3320 SP 3320 SP 3340 SP 3340 SP 3309 SP 3300 SP 3300 SP 3320 SP 3320 SP 3340 SP 3340 SP 3300 SP 3320 SP 3340 SP 3300 SP 3320 SP 3340 SP 3300 SP 3320 SP 3340 SP 3320 SP 3340 SP 3320 SP 3340 SP 3320 SP 3340 contactor SP 3029 SP 3029 SP 3029 SP 3029 SP 3029 SP 3029 SP 3080 SP 3029 SP3080 SP 3029 SP 3080 SP 3029 SP 3029 SP 3080 SP 3029 SP 3080 SP 3029 SP 3080 SP 3100 SP 3080 SP 3080 SP 3220 SP 3080 SP 3080 SP 3027 SP 3080 SP 3080 SP 3220 SP 3080 SP 3027 SP 3027 SP 3027 SP 3027 transformer SP 3312 SDU 1 SP 3305 SDU 1 SP 3329 SDU 1 SP 3349 SDU 1 SP 3312 SDU 1 SP 3305 SDU 1 SP 3305 SDU SP 3329 SDU 1 SP 3329 SDU 1 SP 3349 SDU 1 SP 3349 SDU 1 SP 3312 SDU 1 SP 3305 SDU 1 SP 3305 SDU 1 SP 3329 SDU 1 SP 3329 SDU 1 SP 3349 SDU 1 SP 3349 SDU 1 SP 3306 SDU 2 SP 3330 SDU 2 SP 3350 SDU 2 SP 3306 SDU 2 SP 3330 SDU 2 SP 3350 SDU 2 SP 3351 SDU 3 SP 3352 SDU 3 SP 3353 SDU 3 SP 3352 SDU 3 SP 3353 SDU 3 SP 4198 SP 1005 SP 2330 SP 3035 SW FOAMSM ASS SW FOAM M ED ASS SW FOAMLG ASS SW PROBSM ASS SW PROBMD ASS SW PROBLARASS SP 6003 SW TR
7. should not exceed 5 meters 16 feet Longer runs will result in added condensation loss es Whenever possible use insulat ed copper piping Flexible steam hose should be used for short runs up to 5 meters or for intercon necting between the rigid pipe runs D Whenever using rigid copper pipe 1 3 8 or 2 1 8 for larger units use pipe insulation to diminish condensation build up minimum slope e e A i 15 S trap to drain correct installation condensation pocket incorrect installation fig 14 i SK300 7 nNeptronic humidification manual 5 20 installation of S straps with steam supply hose and pipe E 1 use S separator o when the steam fig 15 Y distributor is lower than the humidifier s steam outlet use S separator when ceiling space is limited and you need to create 15 slopes fig 16 14 neptronic SK300 humidification manual 5 30 positioning of REGULAR or S A M manifolds in the horizond duct 120mm 5 fig 17 l unit 35mm 1 3 8 diameter duct mounting D 2 detail of steam distribu unit 54mm 2 1 8 tion pipe support bracket D 3 Once location has been determined For 35mm 1 3
8. the locking ears of the high voltage connector and pulling out 4 Remove the level sensor connector This connector is attached to a cable that enters the mechanical compartment just below the high voltage connector Squeeze the locking ear of the connector and pull it apart Remove the connection to the high limit klixon sensor 5 Remove the steam hose or hoses at the top of the steam container 6 Remove the water drain feed connection to the steam container To do this unscrew the nipple locat ed on the lower right hand side of the mechanical compartment 7 The steam container may now be freely removed from the cabinet Take care as there will still be some water about 1 inch in the container Make sure that your footing is secure when lifting out the steam container On large units it may weigh more than 30 lb 8 Remove the cover from the steam container On the SK302 SK304 and SK306 unlatch the three latches located at the top of the container The latches are tight you may need the help of a screwdriver or pliers to do this On other models turn the latches located around the top of the steam container to release them Remove the cover of the steam container 9 Pour out any remaining water and scale that is on the bottom of the container You may clean out any remaining scale from the container with a stiff brush synthetic filament only not a wire brush and some vinegar or any weak acid made for cleaning stainless stee
9. water Therefore for normal operation no pre treatment of water is ne ces Sary 4 10 shut off valve An isolating shut off valve should be fitted in the water supply line to the unit and installed close to the humidifier to facilitate servicing It is recom mended to install a standard water strainer in the water supply line 4 20 drain connection The outlet for the two drain connections is a cop per connector on the underside of the unit Standard copper pipe can be used to provide the connection between the unit and the two drain connectors Ensure proper drainage from the unit especially if more than one unit is evacuating into the same drain line The temperature rating on the drain must be 83 C 180 F minimum Follow the drain detail drawing as shown on the right All plumbing locations are shown in the drawing on the right fig 6 SK300 humidification manual drain connector 3 4 Copper pan drain connector Y copper fill valve connector 3 8 by others We 3y copper copper cap open drain 1 f P trap fig 6 C 5 i A 1 75 F B r fig 7 inlet top view BC outlet DCI ENEE table 5 neptronic 4 30 water connection of the SK300 SK300 humidification manual ATTENTION Please respect the following sequence of installation valve tube bottom of cabinet l O male threaded part of the valve
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11. 0 humidification manual 3 00 exploded view of SK300 humidifier plastic grill Ti il E steam trap assembly sdu cabinet LW X Y 5K300 cabinet U UT y lt u T a Ss R P Q Fi 0 T se G y F M E 7 E J a S D Z L C L A container base 2 SK310 to SK360 31 container base SK302 to SK306 i SK300 7 neptronIic humidification manual 13 10 SK300 humidifier parts list SW CONTSMA ASS SK302 to 306 container c w clamps SW CONTMED ASS SK310 to 330 container c w clamps SW CONTLAR ASS SK340 to 360 container c w clamps SP 4196 SK302 to 306 level sensor chamber SP 4197 SK310 314 320 340 level sensor chambel elements element RI N transformer w Zw SA uy z B SA w ZDR SA SP 4018 SP 4019 SP 4183A SP 4 SP 4185A SP 1008 SP 1021 SP 1022 see parts list voltage 240 1 208 1 480 1 600 1 240 1 208 1 208 3 480 1 480 3 600 1 600 3 240 1 208 1 208 3 480 1 480 3 600 1 600 3 208 3 480 3 600 3 208 3 480 3 600 3 208 3 480 3 600 3 480 3 600 3 480 3 600 3 480 3 600 3 below SE 5932 SE 5933 SE 5934 SE 5935 SE 5937 SE 5940 SE 5924 SE 5941 SE 5923 SE 5942 SE 5925 SE 5938 SE 5943 SE 5933 SE 5944 SE 5934 SE 5945 SE 5935 SE 5959 SE 5958 SE 5957 SE 5946 SE 5947 SE 5948 SE 5949 SE 5950 SE 5951 SE 5952 SE 5939 SE 5950 SE 5951 SE 5952 SE 5939 SK302 to 306 cover only 1 phase
12. 11 i SK300 K neptronic humidification manual manifold bracket fig 11 manifold C S A M E2 steam absorption manifold The S A M E2 is to be installed where absorption distances are short less than 5 feet and or low duct temperatures are in effect S A M E2 are used in applications with restricted duct dimensions S A M E2 SAM fig 12 D vertical manifold S A M OR S A M E2 MANIFOLDS are used where the absorption dis tances are normal and the client requires for an economical as well as an efficient solution note for critical absorption distances contact the factory at 1 800 361 2308 or 1 514 333 1433 Y 12 neptronic SK300 humidification manual 5 10 installation of steam hoses and steam pipes Follow these general rules when installing rigid copper piping or flex ible hose to carry the steam from the humidifier to the steam distribu tors A At no point of the installation should the slope of the steam hose or pipe be less than 15 which means 7 horizontal length to 1 ver tical length This is important to ensure continuous drainage of con densation back to the humidifier or to the steam trap B The lowest point of any steam hose or rigid pipe run must be the humidifier or steam trap S type The S separator must have a trap higher than the static pressure of the system by at least 2 inches C Total length of the steam hose or rigid pipe
13. 306M terminal block 5K304M 306M 310M 314M 520M 330M 340M 360M terminal block 1 PHASE 2 PHASE 1 PHASE 2 PHASE 3 PHASE La N Pb N w S AS S S sS fig 35 fig 36 22 6 SK300 7 Neptronic humidification manual 6 40 SK300M proportional unit To connect proportional controls to the humidifier Ensure proper connection to the appropriate terminal blocks N Position the shunt jumpers on the proportional board to correspond to the appropriate control signal terminal block modulating p c board extra jumper control BS o A 4 20mA signal es o S coe 0 10vdc E S mame IE y 4 jumper on 0 10vdc modulating board fig 37 wit fig 38 extra jumper control da Su o L 4 20mA EGG SS S no O 10Y R B e o 2 10V 2 10vdc 1 8 ser gi B E 3 eli ech MAIN PCB 2 moame ON OFF S 4 P jumper on 2 10vdc modulating board fig 39 fig 40 TEE control a signal poo A Ie all A om d i E BB 3 E MAN PCB 4 monas ON OFF 5 Ee jumper on 2 10vdc E and 4 20mA modulating board fig 41 fig 42 23 C SK300 7 Neptronic humidification manual O ARAN MN
14. 600 3 94 ets outlets Sa ew LRM es 10 es ps a pa B ko hr we a e e e EE io iow voe ee ee ee ee ee ska14 135kw ise 38 aes rss 13 fi S E E ee ee Eee EDELE ARENE se HRH E OH 50 40 120 lo hr yom SK360 60 Kw fa te S i a 72 60 3 2180 table 2 Note Suffix M such as for example SK 310M denotes a modulating humidifier Suffix DI such as for example SK320M DI denotes a modulating humidifier intended to operate with deionized water supply You can limit the maximum output of the modulating units by going through the Menu Driven Program Mode into the LOCK ON step WARNING Irrespective of the programmed output span reduction the external wiring to the unit must correspond to the maximum amperage as indicated in the above table o SK300 7 Neptronic humidification manual 3 10 general recommendations IMPORTANT The humidifier should be installed in an easily acces sible location to allow proper access for inspection FOR SARE TY REASON gt OWER MUST BE and maintenance The unit should never be installed TURNED OFF AT THE EXTERNAL BREAK in a location where an unusual malfunction of the ER WHILE INSTALLING THE UNIT AND unit can cause damage to the structure of the build BEFORE REMOVING OR DISCONNECTING ing or to very expensive equipment Typically the total length of steam hose to the manifold should not exceed ANY ELECTRONIC OR MECHAN
15. 8 diameter manifold use the template and drill a hole 51mm 2 for pipe installation Secure using appropriate sheet metal screws supplied by others Follow the drawings below to determine proper place ment of the steam pipes in the duct L H gt 250mm 10 da fig 19 1 steam distributor pipe 35 mm 1 3 8 min 6 H gt 250mm 10 150mm HY min 80mm 3 2 c E a fig 21 2 steam distributor pipes 35 mm 1 3 8 i min 102mm a Note Since the manifold is sloped at a ration of 8 horizontal lengths to 1 vertical length ensure that the minimum distance of the end of the manifold is at least 4 inches from the top of the duct fig 18 For 54mm 2 1 8 diameter manifold use the template and drill a hole 78mm 3 for pipe installation Secure using appropriate sheet metal screws Supplied by others Note that the 54mm 2 1 8 steam pipe must be supported on the end by an appropriate duct hanger strap Supplied by others Follow the drawings below to determine proper place ment of the steam pipes in the duct H gt 600mm 24 fig 20 L 200mm 8 2 steam distributor pipes 54mm 2 1 8 H gt 900mm 36 y 1 3H 1 2H E AAA E gt lt a 250MM u 250mm 10 10 fig 22 3 steam distributor pipes 54mm 2 1 8 neptronic SK300 humidification manual
16. APSMA ASS SW TRAPMEDASS SW TRAPLAR ASS SP 1023A NW SK300DISPLASS SP 3037 call manufacturer SP 3007 see elements D see elements D SP 3102 SP 3103 SP 3104 SP 3105 NP 9875 NP 9877 SP 3008 SP 3006 SP 3009 see elements D SP 5105 SP 6010 SK330 360 levelsensor chamber washer elements S S hex jam nut elements high temperature switch SK302 to SK306 foam sensor SK310 314 320 340 foam sensor SK330 360 foam sensor SK302 to 306 level sensor probe c w PC board SK310 314 320 340 level sensor probe c w PC board SK330 360 level sensor probe c w PC board water intake valve SK302 to 306 fill drain trap assembly SK310 to 330 fill and drain trap assembly SK340 and 360 fill amp drain trap assembly silicone tubing SK300 LCD display ON OFF DRAIN switch terminal block amp high voltage connectors DC cooling fan transformer contactor solid state relay SSR1600660D55 021 solid state relay SSR1600660D90 021 solid state relay SSR1600660D25 021 solid state relay SSR1600660D125 021 SK300 main PC board SK300 modulation PC board SDU 1 fan SDU 2 fan SDU 3 fan transformer fuse inside SDU drain valve UOPaPS pored 3P uep Bubuey gt Hye UOWNG aza SSA x OG LI AAD8 I0D Sue SUOQDEPS JeduuNfap O urep ap J gt P 340 JODEQUOD SUR ala sA y aao pas s Jo pejuoo yeu SUA 41 peyo y eu prLuUnNy aun pue qeyspuny sup qe SYO YZ pue UOLULUOD JO QuIejod supspaup APUY JO PUELLIEp OU 2 a n
17. DC humidistat L P D High voltage Low voltage Switch power terminal control terminal Block block high limit electrical compartment detail fig 31 fig 32 19 TE SK300 NZ neptronic humidification manual 6 20 SK300 modulating units Low voltage control terminals WARNING High voltage power terminal block are designated L1 L2 L3 Low voltage control terminal blocks are designated 1 2 3 4 DO NOT INTERCHANGE 1 PHASE 2 PHASE 3 PHASE r gt E mM IR 0 Ss Y L high voltage low voltage power terminal control terminal block block electrical compartment detail fig 33 HDM humidistat SK300 o MODULATING 3 control terminal block wiring DP AA AAA A A Il A P Naw Na Ma Na Neat Nel Mel Ael high limit switch 20 neptronic SK300 humidification manual Controls placement A typical humidifier control system includes a wall or return duct humidistat a high limit duct humidistat and an air proving switch Placement of these devices is critical to proper operation of the overall system The return air RH humidistat must always be located BEFORE any outside air intake in order to insure accurate sensing of the air from the space Alternatively a room RH humidistat can be used The room humidistat should be located on an inside wall or column It should not be near any discharge ai
18. ICAL 5 meters 16 feet COM PONENTS FAILURE TO DO SO IS DANGEROUS AND WILL VOID THE WARRANTY 3 20 positioning of SK300 To facilitate service the unit must be easily accessible from the front and right hand side The unit is to be mounted on a wall using key holes accessible from inside the mechanical compartment see mounting holes dimensions section The humidifier should be mounted between 1 0m 39 inches and 1 2m 48 inches above floor level Leave a clearance of at least 25cm 10 inches under the unit for installation MIN of water supply drain piping and electrical con re nections A clearance of at least 1 25m 50 inch es from the front of the unit and 60cm 24 inch es from the right hand side is necessary for comfortable access and service The humidifier MIN en 1m 1 2m win should be installed in a normally ventilated area 39 48 in and ambient temperatures should not exceed 30 C 95 F fig 2 3 30 wall mounting The mounting of the humidifier on the wall is to be done by using the mounting keyholes accessible from inside the mechanical compartment Before installation remove the steam container as described in the mainte nance instructions note when marking pilot holes make sure that the humidifier is level neptronic 3 31 mounting to a stud partition SK300 humidification manual 3 32 mounting to a masonry wall wall
19. Quebec laws 35
20. RS The unit has reached 1000 hours of operation and requires service Note the large CHECK window on the front panel fig 2 4 will blink on and off every 4 seconds EG DRAIN FOAM AFEC Anti Foam Energy Conservation detects foam The unit drains for a few minutes and returns to normal operation a PRO BLOCK DRAIN OR PROBE BLOCK The unit drains but the water level does not decrease the humidifier has automatically shut off 26 a SK300 V neptronic humidification manual 8 50 menu driven program mode The MENU button is used to place the SK300 into the program mode and to advance the _ program function to the next programming step in the menu Use the UP DOWN a M buttons to make changes eee la le example of display description comments To enable setpoint display proceed to step STEP 1 By default setpoint 3 by pressing the MENU button the display will not be accessi E ble on the SK300 A fz Im A SETPO NT M odulatin To activate set point control oo appear 40 RAJ units only connect terminal 9 on modu lating humidistat to terminal Press and hold the TEST button on the main 5 on the SK300 humidifier f pc board Controls section page27 fig 13 for 10 seconds then press the RESET but Le ee ton on the main pc im board Setpoint is 2 now displayed on the LCD N re e tena of a drain cycle every S STEP2 Drain For D I uni
21. a short time lapse example of display description comments gm DI T e 1 PERCENT OF RELATIVE Indicates actual humidity from 45 RH X HUM IDITY HRM or HDM humidistat sensor i i modulating units only 5 lb hr 2 TPUT The actual output of the unit at K 36 PEUN that moment is 36 Ib hr El 5 LEVEL LOW ALARM Below this water level the EVE S humidifier shuts off or CONTROL Below this water level K LEVEL 3 MIDDLE LEVEL fill solenoid valve is activated a or HIGH LEVEL Fill solenoid valve is deactivated 25 C E 0 G neptronic SK300 humidification manual 8 40 diagnostic mode W hen the following conditions occur the diagnostic messages override the scrolling information example of display description comments W hen the control input signal is O vdc or the set point has been mode NO DEMAND NO DEMAND reached on the high limit humidistat or the pressure switch DRAI N The unit is in the automatic drain DRAIN CYCLE CYCLE l CONTACT DELAY OVERHEATED 15 second delay for the power contactor to be activated The temperature inside the con tainer has exceeded the boiling temperature The humidifier has automatically shut off PROBE DEFECTE DEFECTED PROBE The water level sensor is not operational The humidifier has automatically shut off asa NOWATER W ater has not reached the level probe d SERVICE HOU
22. ance of the General Conditions of Sale and Warranty of National Environmental Products Ltd hereafter referred to as NEP 2 Incoterms The international rules for interpretation of trade terms Incoterms as defined by the ICC Incoterms publication no 460 from 1990 shall apply to the commercial terms used herein 3 Confirmation of Order NEP shall not be deemed to have accepted an order until written Order Confirmation from NEP is issued to the purchaser It is the responsibility of the purchaser to verify that all infor mation concerning his her order is correct and to notify NEP In writing of any discrepancy prior to the order being shipped n the event of a change or correction to an existing order a sec ond Order Confirmation will be issued by NEP Price Our prices are net Ex works Montreal in U S Currency unless stated otherwise Minimum orders shall be 50 00 minimum Shipping and Handling charges are 5 00 minimum per order unless the shipment is billed to the purchaser s account or shipped freight collect NEP reserves the right to adjust accepted prices in the event of alterations in rates of exchange variations in costs of materials changes in wages interference on the part of the Government or similar conditions over which NEP has no control 5 Payments terms M Ke credit cards C O D Prepayment For open account invoices are payable within 30 days from the date of invoice without no dedu
23. at several times This is to flush out any sol der flux grease or any other substance that may be coating the container or elements The start up cycle will take approximately one hour to complete Note that the front panel switch will not affect the performance of the start up cycle To bypass at any time the start up cycle and to proceed directly into normal operation press the RESET button Look at SK300 controls page 11 fig 1 The front panel 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 If the front panel switch is left on the OFF middle posi tion during the start up cycle the humidifier will idle after the completion of the start up cycle In the case of modulating humidifiers there must be a demand signal at least 50 demand for the start up cycle to operate correctly No damage will result ifthere is no demand signal However boiling may not occur in the second stage of the start up cycle This may prevent the clean up and flush out of solder fluxes that may be present in the steam container 1 00 routine maintenance The only routine maintenance required for SK300 humidifiers is a periodic cleaning of the steam container Although there is an automatic flushing of the steam container it must be cleaned manually from time to time Depending on the water quality the frequency of auto matic drain
24. ction unless specify otherwise An interest charge of 2 per month will be included on all over due payments No new order will be process if invoices are not paid within 45 days 6 Transfer of ownership The goods shall remain the property of NEP until the full payment for the goods has been received by NEP 7 Delivery terms Shipments are Exworks 400 Lebeau St Laurent Quebec H4N 1R6 CANADA unless notified otherwise Unless special instructions the order will be delivery in the way which NEP deems best without guaranteeing this to be the cheapest way of transport For International Order a written designation naming the freight forwarding agent is required and will remain in effect until notified otherwise Any discrepancy damage or breakage should be reported in writing both to NEP and to the Carrier within 5 working days from the receipt date 8 Risk From the moment of delivery the purchaser shall bear all risks for the goods and NEP shall not be responsible for loss and damage incurred during transportation Delivery time Delivery time is stated approximately and depends on the product ordered please allow a minimum of a 2 weeks for processing North American order b 6 weeks for processing International order We will make every effort to adhere to our delivery promises but will not accept order or contract cancellation or any liability for any direct or indirect losses that may arise for any reason what soev
25. cycles and the demand placed on the humidifier this manual cleaning should be performed anywhere from once every two months to once par year The humidifiers are set to give maintenance demand on the alphanumeric display and on the CHECK light after it has reached the service hours setting between 400 and 1500 hours 29 nag SK300 NEY neptronic humidification manual The steam container and its contents may be extremely hot Follow these directions to ensure your safety 1 Ensure that the steam container and its contents are cool Set the front pana switch to DRAIN Drain out all the water in the steam container W hen the container is empty turn the front panel switch to AUTO This will refill the steam container with fresh cold water As soon as the container is full and the FILL light turns off or the STEAM light goes on turn the front panel switch to DRAIN Drain out all the water in the steam container once again The container and its contents should now be cool enough to touch If you feel that the container is still too hot repeat the operation 2 Turn the front panel switch to OFF Turn off the main power supply to the humidifier Failure to do this may result in a dangerous electrical shock 3 Remove the high voltage connector located at the top right hand side of the mechanical compartment On the SK302 to SK306 this is done by unscrewing and pulling out the female connector On other models this is done by squeezing
26. e container or the elements The start up cycle will take approximately one hour to complete To bypass the start up sequence push the RESET button in the lower R H corner of the main p c board The 3 jumpers at the center of the p c board are used for proper selection of the incoming control signal For details consult section 6 30 SK300M proportional unit Page 19 28 6 SK300 7 Neptronic humidification manual After all the mechanical and electrical installation steps as outlined previously have been car ried out the following start up procedure should be followed start uo procedure A Turn on the water feed and check that the drain connections are made correctly B Ensure that the power connections and control connections are made correctly C Turn on the power to the humidifier The POW ER indicator should go on If not proceed to the trouble shooting section l A D Push the TEST button on the main control P C board This will start up a pre programmed start up cycle which will flush out any dirt in the humidifier and supply lines In addition it will test several functions of the humidifier The start up cycle will simultaneously feed and drain water from the steam container for 30 minutes This is to flush out any dirt in the plumbing lines Subsequently the humidifier will fill the steam container and boil for 5 minutes It will then drain the container The fill boil drain cycle will repe
27. er as a result of our failure to adhere to such promises 10 Return of good Goods received by the purchaser cannot be returned unless a completed R M A Form Return Material Authorization Form has been issued by NEP s Customer Service Any returned goods must be sent to NEP 400 Lebeau St Laurent Quebec H4N 1R6 CANADA unless stated otherwise by the R M A Form accompanied with the completed R M A Form the R M A number shall be prominently displayed on the shipping box Unauthorized returns will be refused Any returned goods must be sent freight prepaid Any goods that come to us freight collect will be refused and returned to sender unless previously agreed to by us in writing on the R M A Form Goods returned for credit shall be in condition for resale in the original box and properly packaged Units accessories or com ponents that have been installed are not returnable and not refundable Credit is subject to an overhead charge of 30 of the invoice plus shipping amp handling if returned within 30 days of the invoice date and 50 from 30 to 60 days Non standard product SK units with special feature Multisteam manifolds and any DI unit are not returnable and not refundable 11 Warranty Provided that the terms of payment are observed the purchas er is offered a warranty of 24 months from the original purchase date of delivery for any NEP s standard product provided the equipment has been properly installed and o
28. i MIN cm observed to avoid ceiling and wall con 10 inches densation fig 5 SK300 humidification manual C E 0 G SK300 SDU space distribution unit remote mounted neptronic The SDU units are mounted in the same fashion as standard units Note that a The humidifier should be mounted such that the SDU fan section is at least 2m 7 feet above the floor b A minimum clearance of 45 cm 1 feet from the ceiling should be allocated to avoid ceiling and wall condensation Note If additional ventilation is not present the fan must have a clearance from the ceiling of at least 135 cm 4 Y feet Proper ventilation must be observed to avoid ceiling and wall condensation C The humidifier can be in a different location from the SDU Follow all piping recom mendations in the installation manual For SK302 to SK310 For SK314 to SK330 A Without additional Without additional 2 MIN ventilation increase to 1 ME ventilation increase to a teet 4 Ye feet 135cm 2 feet 4 Ye feet 135cm 45cm 45cm y SDU y SDU field field wiring wirin field A 16ga 4 wires field 4 1 Baa 4 wires piping piping MIN MIN 7 feet 7 feet 2m 2 2m 2 60cm 60cm ELN A AN A A L MIN L MIN 10 inches 10 inches 25cm 25cm Y neptronic 4 00 plumbing connections The SK300 humidifiers are independent of vari able water conditions and can operate equally well with hard or soft
29. ic humidification manual 5 6 positioning of S A M Or S A M E2_ manifolds 1 3 8 35mm or 2 1 8 5 mm in vertical ducts Follow the drawings below to determine proper placement of the steam pipes in the duct fig 28 one pipe vertical two pipes vertical fig 25 fig 26 S A M S A M E2 top view three pipes vertical 54 mm 2 1 8 distributors only fig 42 fig 27 Ng 28 17 neptronic 5 70 M S Multi Steam manifold QOnmnmmvow gt SK300 humidification manual Min 2 5cm Main Steam Header stainless steel Steam Manifolds 1 3 8 stainless steel Typical Steam Nozzle Condensation Run 3 4 by others Steam Adapter Length of Header Height of Manifold Duct W idth Duct Height Hangers by others K U Trap by others Flexible Steam Hose 2 Bracket or stainless steel nut 18 EA a SK300 neptronic humidification manual 00 electrical connections WARNING High voltage power terminal block are designated L1 L2 L3 Low voltage control terminal blocks are designated 1 2 3 4 DO NOT INTERCHANGE 6 10 SK300 ON OFF units Low voltage control terminals SK300 ON OFF 7 Y 7 control terminal o block wiring a N m L1 L2 L3 1 2 201018 i a 212 i vv 5 volt DC 5 volt
30. ier is generating For example for 30 demand the STEAM light would be on 30 of the time in 2 second time frames For actual output consult the display fig 43 1 This is a 3 position switch In the AUTO position the humidifier will generate steam based on demand signals from the humidistat In the OFF position the humidifier will shut off In the manual DRAIN position the humidifier will stop operating and the motorized drain valve will open to drain out the water The DRAIN indicator lights up whenever the motorized drain valve is opened whether as a result of an automatic drain cycle or because the front panel switch is manually set to DRAIN 24 a SK300 V neptronic humidification manual 3 00 programming features 8 10 alphanumeric display and control The Alphanumeric display is the information center whose function is to inform on the actual status of the unit and in case of abnormal operation to describe the malfunction Through the display menu parameters and may be changed as described below EL 252m 8 20 off mode ER W hen the rocker switch fig 2 7 is in the OFF position the display shows the model of the mila unit example of display NEP 2 4 fig 44 SK320M fig 45 8 30 scroll mode W hen the rocker switch fig 2 7 is inthe AUTO position the display scrolls the following information every 6 seconds S this symbol will be used to represent
31. l 10 The lid of the steam container will in general not require cleaning However if cleaning is required it may also be cleaned using a stiff brush and vinegar as outlined above 11 Remove 2 screws attaching the level sensing protective tube clean the level sensor using a soft cloth Do not scratch or damage the teflon finish 12 Rinse out the container and lid thoroughly with water and re attach the lid to the container Make sure that the gasket is well placed before tightening the latches Replace the steam container in the humid ifier and tighten the water drain feed connection nipple 13 Re attach the level sensor and high voltage connectors 14 Re apply power to the humidifier and set the front panel switch to AUTO 15 The humidifier should start to fill with water If it does not then check if the FILL light is lit on the front panel If the FILL light is on and no water is being fed to the container check if a valve before the humidifier has been turned off 16 Note that since the steam container is completely empty it may take a few minutes to fill The humidi fier may interpret this as being a water feed problem and the CHECK light may turn on This is not a prob lem the CHECK light will turn off as soon as there is sufficient water in the humidifier 17 Once there is sufficient water in the humidifier and there is a demand for humidity the humidifier will be back in normal operation 30 neptronic SK30
32. n additional P C board that is mounted on top of the main P C board as shown below HI LO LA RH SETPOINT INPUT TEST SSR e GG 4 20mA C Fu aa 0 10V EE DRAIN CONT hn E L S H fas HI ee MAIN PCB e i MODULATING ON OFF e L L RESET i i fig 46 9 20 modulating upper p c board 9 10 main p c board There are 3 water level L E D s in the upper right hand side They indicate the relative water height as sensed by the capacitive sensor At HI level the inlet water sole noid shuts off at LO the solenoid opens and the LA indi cates water level below which the power to the elements is shut off The 3 status L E D s at the center left side operate as follows FILL indicates the solenoid is feeding water DRAIN indicates the drain valve empties the container and CONT indicates power is supplied to the elements and the unit is producing steam When commissioning the unit push the TEST button to initiate a preprogrammed start up cycle The start up cycle cleans the supply water and the steam container The sequence is as fol lows For the first 30 minutes the TEST cycle will feed and simultaneously drain the water in order to flush out any dirt in the water supply lines This will be followed by FILL and 5 minutes boil and DRAIN cycles which will be repeated several times This is to flush out any solder flux grease or any other substances that may be coating th
33. neptronic CIZ SUL ome Serres 7 A a aee installation and service manual J ANUARY 2002 national environmental products Itd 400 blvd lebeau st laurent quebec canada H4N 1R6 tel 514 333 1433 fax 514 333 3163 toll free canada 1 800 361 2308 nap SK300 neptronic index 2 OMOONNDADAUUUNU a LU 1 00 table of contents dimensions 2 00 output and power consumption 3 00 positioning amp installation 4 00 3 10 general recommendations 3 20 positioning of SK300 3 30 wall mounting 3 31 mounting to a stud partition wall 3 32 mounting to a masonry wall 3 33 mounting holes dimensions 3 40 steam output positions 3 50 SK300 SDU space distribution unit plumbing connections 5 00 4 10 shut off valve 4 20 water connections 4 30 water connection detail for SK300 installation of steam hoses and steam pipes 6 00 5 10 Installation of steam pipes 5 20 installation of S straps wit steam supply hose and pipe 5 30 positioning of s a M and s A M E2 manifolds in the horizontal duct 5 40 installation of s a m and S A M E2 steam distribution pipes 5 50 REGULAR and s a m steam distribution pipe requirements 5 60 positioning of REGULAR and s a m manifolds 1 3 8 35mm or 2 1 8 54mm in vertical ducts 5 70 M S MULTI STEAM manifold electrical connecti
34. o assist you in placing the unit Apply washer and nuts and tighten fully to torque recom mended by the bolt supplier On larger units SK310 or larger also apply the lower mounting holes A B C I a D E La G e F front view fig 3 fn SK300 7 Neptronic humidification manual 3 40 steam output positions Small cabinet SK302 304 306 dim SL S oe se SZ 304 306 pes A H M edium cabinet 122mm SK310 314 SK320 330 J 4 13 16 134mm K 5 9 32 7 L 102mm 102mm x 4 4 143mm 143mm M 5 5 8 5 5 8 N l l 7 ee 179mm O 7 E qu 132mm P A f S 5 3 16 144mm Q gt E 5 11 16 table 4 Top view fig 4 3 50 SK300 SDU Space distribution unit MIN 45cm without additional The SDU units are mounted in the 1 feet ventilation increase to 135 cm 4 Y feet same fashion as standard units Note that a The humidifier should be mounted such that the fan section is at least 2m 7 feet above the floor b A minimum clearance of 450mm 1 feet from the ceiling should be j ili E 2m allocated to avoid ceiling and wall con MIN 7 feet densation MIN Note If additional ventilation is not Sad present the fan must have a clearance SE from the ceiling of at least 1350 mm 4 feet Proper ventilation must be ee 25cm id ceil
35. ons 7 00 6 10 SK300 ON OFF units Low voltage control terminals 6 20 SK300 MODULATING units Low voltage control terminals 6 30 power supply connections 6 40 SK300M proportional unit front panel display features 8 00 programming features 8 10 alphanumeric display and control 8 20 off mode 8 30 scroll mode 8 40 diagnostic mode 8 50 menu driven program mode 9 00 control P C Board 9 10 main P C Board PCB970819 9 20 modulating upper P C Board PCB971219 10 00 start up procedure 11 00 routine maintenance 12 00 steam container cleaning instructions 13 00 exploded view of SK300 humidifier 13 10 SK300 humidifier parts list 14 00 trouble shooting 15 00 warranty Es SK300 NEY neptronic humidification manual 00 dimensions SDU SK300 dimensions v model A B C D E SDU i SDU 2 2 724mm 533mm 318mm 168mm 893mm SK314 Jeu tom ser 351 8 724mm 533mm 318mm 327mm 1051mm SK320 28 12 12 7 8 413 8 SDU 3 724mm 533mm 318mm 327mm 1051mm 5K330 287 1242 12318 aisre SPUR 794m 318mm 21 m 813mm 3 SK340 31 2 1242 j i j 794mm 813mm 318mm SK360 31 32 12 9 S E Y SDU SPACE DISTRIBUTION UNIT table 1 SK300 C E 0 neptronic humidification manual 2 00 output and power consumption model power capacity amperage oe an 240 1 208 1 208 3 480 1 480 3 600 1
36. perated in accor dance with NEP instructions The warranty covers faulty manufacture design and or defec tive materials The warranty shall cease to be valid in the event of misapplication incorrect installation improper maintenance or any other incorrect uses or misuse of the product For the SK series the warranty furthermore ceases to be valid if the user disconnects or removes any electronic or mechanical components prior disconnecting the input power NEP assumes no responsibility for repairs made on equipment unless performed by NEP s authorized personnel The defective product or component shall be returned in accor dance with the paragraph 10 Returns of goods as described in this document NEP agrees under the warranty to repair or replace at the dis cretion of NEP such standard product or component which upon examination by NEP are found to be defective Product or component replaced or repaired under warranty will be sent back to the purchaser standard freight paid by NEP Expenses in connection with travelling time dismantling and mounting shall not be paid by NEP Guarantee for products or components sold but not manufac tured by NEP is only given to the same extent as given to NEP however not exceeding the normal NEP warranty 12 Proper law and jurisdiction This contract is and shall be deemed to have been made in the province of Quebec CANADA and shall in all respects be gov erned by the province of
37. r from supply ducts or sources of heat or cold relief outside 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 the moisture The high limit humidistat must be posi tioned far enough downstream of the steam dispersion manifold s to prevent it from getting wet but still allow it to accu rately prevent overhumidification of the duct that could result in condensation air flow switch air air 6 feet A Y E min return air aa d i 5 L return RH sensor E high limit or steam humidistat HRM dispersion ETEN room sensor manifold high limit 7 HDM for VAV application only EEN see fig 15 21 i SK300 7 neptronIic humidification manual 6 30 power supply connections The wiring to the SK300 unit should be done by a qualified electrician and external over current protection should comply with local codes A disconnect circuit breaker should be connected and placed adjacent to the unit Appropriately sized cable connectors should be used in the knock outs at the bottom of the elec trical compartment of the humidifier for strain relief Terminal connections must be properly secured 3 phase connection single phase connection SK304 306 310 314 320 330 340 360 SK302 304 306 terminal block terminal block SK302M 304M
38. ts there is a disabled drain option which can be overridden only by the AFEC system The unit has operated 645 hours since the last service Note After service hours per step 4 of operation a SERVI GE message will 0645 3 STEP 3 Running hrs appear and the CHECK light fig 2 4 on 0645HIRS the front panel of the unit will blink every 4 seconds After service has been done press the UP DOWN buttons a as a simultaneously for 30 MM Ja Ei A seconds to reset the number of hours of operation to zero EESIN Press the UP button to select EE STEP 4 Service hrs NON from 400 to 1500 hours FA qt a settings for service LOCK S i The humidifier will deliver 80 of i Modulatin e humidifier will deliver b of its max Eta units only STEPS OULPUtS Pan imum rated output when at full demand Note A Any changes made in the Program M ode are saved into a non volatile memory B When the SK300 is anywhere in the M enu Driven Program M ode the normal operation of the unit is halted To resume normal operation exit the menu program mode by pressing the MENU button until the alphanumeric display is clear This happens after step 5 Lock On N 27 neptronic 9 00 control p c board SK300 humidification manual The SK300 humidifier is controlled by an advanced microprocessor based control system The basic control sys tem is the same for the ON OFF or Modulating units Modulating units are equipped with a
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