SKR series Steam Humidifier – Kit N
Contents
1. 2 1 1 Description of accessories supplied with the humidifier lessen 2 1 2 Humidifier overview ns 2 2 RR 3 2 1 Evaporation chamber 3 3 euclcledcie 3 4 Mechanical installation REA 4 41 General TECOMIMENGANONS x iii aisha 4 ZEE eiie 11 era E mm 4 WV AI UO 114 111 m TE 4 5 Fe eM ORO CONNEC HOT 5 Dil Typa CAM AMON RTT Eom 5 52 GENES al TECOMME ANON RO Em 5 5 3 Recommendations for steam distribution piping 6 5 4 Recommendations for the location of the steam dispersion tube 6 6 xit suele CIONS NN Emm 7 ud eo M c 7 O2 21 eaa DEUM CMT dU 8 7 Power supply eee a elo a en tr ee ee ee 9 8 ge lt mene ee ane re T Oo OTT 10 DN mom 10 9 Seguro PVN CSI AY ENERO oT Emm 11 10 Descriplionolthe control PO relie NEN m m 12 10 1 cc eee ee eee 12 441751 oe 16 T m m 13 12 Description of operation of the2. 13 13 me 14 EE 80 90 OSEE 14 Tl GON CINE 14 14 2 Evaporation chamber cleaning 14 15 Exploded View and Bill Of Material anges 16 151 IOS VI OWN O 16 15 2 Mrz NN 16 N 17 Wie 1 1 IS SIO MNCs az can ener T m OO ETE 18 19 Rs 19 10 _ FO a 20 General condition of sales amp 21 E M T neptronic T nein 1 Presentation Thank you for choosing a Neptronic product You have purchased the best and the most robust humidifier in its category 1 1 Description of accessories supplied with the humidifier 1 steam dispersion tube 1 length of flexible steam hose 2 keys 2 adjustable collars to attach the steam hose to the steam outlet 1 female fitting to connect the water supply 1 2 Humidifier overview Electrical compartment Control panel High voltage quick connect Evaporation chamber Internal plumbing assembly Water level Sensors Water fill valve E A 2 neptronic 2 Definition 2 1 Evaporation chamber Assembly including the stainless steel cylinder and a cover equipped with an electric element 4i B High voltage quick connect Y A
3. Access panel Fig 16 Notes 1 Wire humidistat or BMS signal to close on humidity drop below set point 2 Wire airflow switch to close when sensing air flow and open when no air flow is sensed 3 Wire high limit humidistat to close on drop in humidity and to open when set point is reached neptronic T ert 19 Personal notes T neptronic 1 General Unless otherwise arranged in writing the acceptance of the Order Confirmation by the purchaser includes acceptance 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 e shall not be deemed to have accepted an order until written Order Confirmation from NEP is issued to the purchaser e It is the responsibility of the purchaser to verify that all information concerning his her order is correct and to notify NEP In writing of any discrepancy prior to the order being shipped In the event of a change or correction to an existing order a second Order Confirmation will be issued by NEP 4 Price e Our prices are net Ex works Montreal in U S Currency unless stated otherwise e Minimum orders shall be 50 00 minimum e Shipping and Handl
4. 77 Dimple for the alignment of the cover High temperature switch quick connect Steam outlet 14 1 2 368mm Fig 3 Capacity Electrical Requirements Steam outlet Lb hr diameter kg hr Voltage Current Power Empt With V A KW water A 22 35 2 22 10 16 SKR 25 7 5 5 VILLA 3 41 22 10 16 SKR 30 9 5 CHATEAU 4 1 0 6 5 6 e 240 SKR 40 12 BELVEDERE 5 45 12 11 13 7 3 ETAT 8 E M 2 neptronic 4 Mechanical installation 4 1 4 2 4 3 General recommendations CAUTION RISK OF ELECTRIC SHOCK DISCONNECT THE HUMIDIFIER FROM THE ELECTRIC SUPPLY BEFORE PROCEEDING TO THE MECHANICAL INSTALLATION IMPORTANT Mechanical installation should conform to Local and National Codes Location Plan a location which is easy to access in order to permit a proper inspection and servicing of the humidifier Do not install humidifier where failure of the appliance could cause damage to the building structure or to costly equipment This location should be well ventilated the ambient temperature should not exceed 85 F 30 C The maximum distance between the humidifier and the steam dispersion tube in the ventilation duct should not exceed 6 feet 1 8m maximum length of the steam hose Positioning The front panel and the left side electrical compartment should be accessible in order to permit easy servicing of the humid
5. 3 Steam dispersion tube 4 Duct Radius Fig 7a Incorrect installation Slope 15 minimum R 12 minimum Steam hose Insulated copper pipe by others Fig 7b Steam trap S Y Fig 7c Correct installations neptronic 5 3 5 4 Recommendations for steam distribution piping Steam dispersion MAXIMUM allowable duct Qt Diameter Length dispersion tube location y in mm in mm in water Pa SKR Humidifier User Manual SKR 14 25 7 8 22 9 229 0 5 125 SKR 30 40 1 3 8 35 0 5 125 IMPORTANT RISK OF MALFUNCTION THE STATIC PRESSURE AT THE DISPERSION TUBE LOCATION SHOULD NOT BE GREATER THAN 0 5 125 Pa DURING OPERATION FAILURE TO DO SO WILL VOID THE WARRANTY For a higher static pressure use the Neptronic SK300 commercial series humidifier Recommendations for the location of the steam dispersion tube e IMPORTANT Risk of malfunction 1 Do not split the steam output piping to supply more than one duct 2 Do not reduce the diameter of the steam hose or piping Hose and piping diameter must be the same as the diameter of the humidifier steam outlet Provide a minimum of 18 460mm of straight duct without obstructions elbows downstream of the dispersion tube Select an accessible location in the supply air duct For the SKR 14 amp 25 use a te
6. Check water supply circuit Check that the clamp on the steam hose is properly tightened on the steam outlet of the evaporation chamber gasket inside the evaporation cover SKR Humidifier User Manual neptronic 18 Electrical diagram SKR Humidifier ee ge Printed circuit board Mechanical compartment pede usc SS io ii X 11 i TH Heating element Powered 120 or 240Vac Quick connect T To fan Pilot Dry contact NETS f Fill E valve t Powered 30mA To external 24Vac gt lt alarm relay High 24 temperature Output switch connector Airflow switch i Il yl 24 Vde High limit humidistat 24 ue M Dip switches Humidistat P level sensor BMS system MEME 4 DA ae E T E Hos Ims MN Alarm LED Red lt Fan LED Green Power LED Green Drain LED Yellow On Off Push button Drain Push button T Fill LED Yellow Steam LED Green p E X
7. m neptronic SKH series Steam Humidifier Kit N Patent Pending Installation instructions amp user manual READ AND SAVE THESE INSTRUCTIONS SKR N EN 050908 Z JN idifi neptronic Foreword Foreword A These installation instructions and operation manual have been developed to facilitate the installation and the operation of the SKR series steam humidifier The strict application of these instructions will ensure the conformity of your installation and operation as per manufacturer s recommendations B The application of these instructions is one of the conditions for the application of the warranty C The application of these instructions does not ensure at any time conformity to procedures regulation or local codes regarding electrical installation and connection to local water supply D This product has been declared to conform to 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 to the manufacturer E 2004 All right reserved this document cannot be reproduced totally or partially by any means whether electronic mechanical photocopy recording or other without prior written authorization of National Environmental Products Ltd Manufacturer Presentation National Environmental Products Ltd NEP is the owner of the Neptronic brand NEP develops manufactures and services
8. Dip switch DS1 settings Drain every 2 hours of operation Service required 9 alarm appear after 750 hours of operation DJ e LI 2 Fig 14b Dip switch setting DS1 3 Dip switch is not used SKR Humidifi neptronic permiso 11 Start up procedure Follow this start up procedure to avoid improper system operation 1 Ensure that steam distribution electrical and plumbing connections have been done in accordance with the instructions in this manual a Remove the humidifier cover CAUTION RISK OF ELECTRIC SHOCK ENSURE THAT THE POWER IS TURNED OFF BEFORE REMOVING THE COVER Ensure that the control wiring has been made in accordance with the instructions in this manual Ensure that dip switches section 10 DS1 are correctly set Verify that the drain connections are connected to an open main drain of sufficient diameter Re install the humidifier cover Open the water shut off valve external to the humidifier Turn on the power to the humidifier at the breaker fused disconnect The POWER indicator located on the control panel will flash Press the POWER push button located on the control panel The POWER indicator will stay on continuously Perform a manual cleaning cycle a The fill cycle is activated automatically when the evaporation chamber does not contain water b When the FILL indicator is off press the DRAIN push button The DRAIN indicator will co
9. The required cleaning frequency can vary from every 2 months to once a year depending on local water conditions The SKR humidifier is equipped with an internal operating hour counter and a service required alarm Depending on the local water conditions service of the humidifier may be required prior to the service required alarm setting section 10 DS1 2 The routine service is a cleaning of the evaporation chamber 14 2 Evaporation chamber cleaning CAUTION RISK OF BURN THE EVAPORATION CHAMBER AND ITS CONTENTS CAN BE EXTREMELY HOT CHECK TEMPERATURE BEFORE HANDLING 1 Cooling down and draining of the evaporation chamber a Press DRAIN push button on the control panel The humidifier will initiate a drain cycle The DRAIN indicator will turn on The DRAIN indicator is on and the water is drained from the evaporation chamber The evaporation chamber will refill with water and drain again When the DRAIN indicator turns off the POWER indicator will begin to flash Check the temperature of the evaporation chamber If it is cool enough go to step 2 below otherwise repeat draining of the evaporation chamber step 1 until is cold enough 2 Shut down of the electrical supply CAUTION RISK OF ELECTRIC SHOCK TURN OFF POWER AT THE EXTERNAL BREAKER FUSED DISCONNECT BEFORE SERVICING a Remove the cover of the SKR Humidifier 3 Disconnecting the heating element a Unscrew the high voltage quick
10. connect see fig 2 located on the right side of the electrical compartment 4 Disconnecting the high temperature switch a Disconnect the high temperature switch quick connect see fig 2 5 Disconnecting the steam hose and the water pipe a Loosen clamp on the steam hose connection b Remove the steam hose from the top of the evaporation chamber c Unscrew the water piping coupling located on the lower right hand side of the evaporation chamber 6 Removing the evaporation chamber a Remove the evaporation chamber from the humidifier cabinet D E M 2 neptronic 7 10 11 12 Opening the evaporation chamber a Unfasten the 3 latches located around the evaporation chamber Caution Risk of injury latches are tight It is recommended to use pliers or a screwdriver to unfasten the latches b Remove the cover from the evaporation chamber Do not misplace the gasket located between the cover and the cylinder Cleaning the evaporation chamber a Pour out any remaining water and scale from the bottom of the evaporation chamber b Clean out the remaining scale use a non metallic brush and water Some vinegar or any weak acid for cleaning stainless steel may be required IMPORTANT The use of wire brush or any non recommended acid will void the warranty c If the amount of scale to be removed is significant the service required alarm setting and or the drain rate section 10 DS1 may be set
11. 5Pa Check that the steam hose is not blocked or kinked Check that the water connection on the evaporation chamber is not blocked Check that the water connection to the evaporation chamber is not blocked Check that the drain piping is not blocked Check that the shut off valve installed on the supply water line is open Verify the operation of the fill valve Check that the fill valve strainer and the external strainer are not blocked Check that the sensors are properly connected Check that the sensors are clean Check that the main power breaker or fused disconnect switch is closed e Press the POWER push button to turn OFF the humidifier if necessary e Press and hold DRAIN and POWER push buttons simultaneously for ten seconds These two indicators will turn on after the ten seconds Release the push buttons Press the reset button on the high temperature switch device located the evaporation chamber cover Press on the DRAIN push button Automatic reset when the proper water level is reached Press on the POWER push button Automatic reset when the unit is powered 17 neptronic 17 Troubleshooting quide Problem Causes Corrective actions The humidifier does not operate no alarm The humidifier does not operate alarm indicator flashing The duct downstream of the dispersion tube is wet Water accumulation under the humidifier The humidifie
12. N Push button and Indicator yellow Humidifier is in automatic or manual drain mode Press DRAIN push button to stop an on going drain cycle Drain mode is off FAN Indicator green The contact to activate the ventilation system fan is closed The contact to activate the ventilation system fan is open neptronic SKR Humidifier User Manual 10 Description of the control PC Board e The Printed Circuit Board is equipped with an advanced microprocessor which controls all humidifier functions 10 1 P C Board Dry contact TB2 to activate the ventilation system fan on call for humidity 3amp 24vca Dry contact TB3 for remote alarm annunciation 1amp 24vca Terminal to connect the airflow proving switch and the high limit humidistat see fig 12 Terminal to connect the humidistat or Building Automation System see fig 12 Lsa Drain every 6 hours of operation Service required alarm appear after 1500 hours of operation Fig 14a Top view Note Depending on the local water conditions service of the humidifier may be required prior to the service required alarm setting see section 14 Maintenance
13. a complete line of e Steam humidifiers e Humidistat among the most precise and the most reliable on the market e Actuators to regulate air damper or valves e Electric heaters e Thermostats and other control peripherals used to control HVAC equipment For more information about our products visit our web site at www neptronic com Each Neptronic product benefits from over 25 years of experience of our qualified staff From the inspiration to realization innovation has been the standard in design As the result of this dedication NEP Ltd owns several patents notably the ENERDRIVE system and the AFEC system Manufacturing is conducted on the premises of our modern 80 000 sq ft 8 000m facility in Montreal Canada Our quality system is built on the ISO 9001 model Our vision A Customer for Life is realized by listening our customers needs and by supplying them with products which exceed their expectations in quality functionality and durability National Environmental Products Ltd Tel Toll free in North America 1 800 361 2308 Tel 1 514 333 1433 Fax 1 514 333 3163 Fax Customer service 514 333 1091 Business hours Monday to Friday 8 00am to 5 00pm Eastern time IE TTA SKR Humidifier ne piro NIC Table of contents Table of contents Foreword amp Manufacturer 1 rie RTL
14. ace at the discretion of NEP such standard product or component which upon examination by NEP are found to be defective e Product or component replaced or repaired under warranty will be sent back to the purchaser standard freight paid by NEP e Expenses in connection with traveling time dismantling and mounting shall not be paid by NEP e Guarantee for products or components sold but not manufactured by NEP is only given to the same extent as given to NEP however not exceeding the normal NEP warranty e Parts used for repairs are warranted for the balance of the term of the warranty on the original humidifier or 90 days whichever is longer e Any repair made after the original warranty period at the NEP facilities are warranted for 1 month from the date of repair 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 governed by the province of Quebec laws 21
15. d conform to procedures regulations and local codes Ensure that the voltage required by the humidifier is the same as the available power supply Ensure that the size of the wire conductors is appropriate for the current required by the humidifier A dedicated external breaker fused disconnect must be installed The ground conductor must be equipped with ring terminal and be connected the indicated location fig 11 Use coppers conductors only Ensure that each terminal connection is properly secured Install the supplied strain relief bushing at the bottom of the electrical compartment for of the supply cable Terminal connection Ground connection Opening ioc control cables Strain relief bushing for passage of the electrical cable Fig 11 Left side view E T T neptronic T nein 8 Control diagrams IMPORTANT Use the cables with jack connectors provided by NEP No substitution is permitted because the operation of the unit will be affected 8 1 Control kit N IMPORTANT Maximum length of each control cable is 250 feet 76m Control e PCB Printed Circuit Board in the humidifier PCB e No control is included in _ this kit
16. d water nlet water pressure 15 to 70 psig 1 to 4 8 bars IMPORTANT Risk of malfunction Do not reduce water supply flow v Maximum temperature 85 F 30 C v 3 8 10mm standard copper supply water connection To facilitate servicing a shut off valve not supplied should be installed in the water supply line close to the humidifier It is recommended to install a standard strainer in the water supply line If required an air chamber made of copper pipe see fig 9 will absorb hydraulic shock avoiding water hammer when the fill valve closes There are other standard types of air chambers commercially available Please follow the steps below 1 Connect 3 8 10mm copper pipe to the bottom 3 8 10mm compression fitting supplied 2 Handtighten the swivel top 3 8 10mm fitting to the male threaded valve connection IMPORTANT Risk of damage to the valve do not use wrench to tighten swivel Fill valve in the humidifier others a ase by Humidifier base avoid water hammer Male threaded e by others valve connection z Swivel top LO NU Compression gt fitting v 22 E Water line 3 8 10mm pipe B by others Q Q lt Shut off valve by others Fi
17. delivery the purchaser shall bear all risks for the goods and NEP shall not be responsible for loss and damage incurred during transportation 9 Delivery time e Delivery time is stated approximately and depends on the product ordered please allow a minimum of a 2weeks for processing North American order b 6 weeks for processing International order e 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 whatsoever as a result of our failure to adhere to such promises SKR Humidifier General conditions of sale amp warranty 10 Return of good e 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 e 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 e 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 e Goods returned for credit shall be in condition for resale in the original box and properly packag
18. e Wiring by others Airflow proving switch 77 4 mM PE re High limit humidistat Mm 2 UJ c Humidistat or Building Automation System Fig 12 IMPORTANT Risk of malfunction Do not supply power from external source to control terminals TB4 and TB5 These terminals are powered by the humidifier Notes 1 Wire humidistat or Building Automation System signal to close on humidity drop below set point 2 Wire airflow switch to close when sensing air flow and open when no air flow is sensed 3 Wire high limit humidistat to close on drop in humidity and to open when set point is reached TI neptronic T bein 9 Control panel display 28 H tronic u eal Fig 13 Front panel ALARM Indicator red Oz One or more abnormal conditions exist flashing see section 16 Types of alarm sO lt Maintenance is required the humidifier is OFF Normal operation POWER Push button and Indicator green O The The push button is in the ON position button is in the The push button is in the ON position position The push button is in the OFF position and the humidifier is powered Humidifier is not supplied with electric power TT FILL Indicator yellow Water supply valve is open oO Water supply valve is closed STEAM Indicator green Humidifier is producing steam Humidifier is not producing steam DRAI
19. ed Units accessories or components 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 5096 from 30 to 60 days e Non standard product SK units with special feature Multisteam manifolds and any DI unit are not returnable and not refundable 11 Warranty e Provided that the terms of payment are observed the purchaser 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 operated in accordance with NEP instructions e The warranty covers faulty manufacture design and or defective materials and is limited to the equipment and components 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 e 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 e defective product or component shall be returned in accordance with the paragraph 10 Returns of goods as described in this document e agrees under the warranty to repair or repl
20. g 9 neptronic i Drain connections IMPORTANT No external drain traps are required Drain outlet specification Main drain 1 2 13mm standard copper evaporation chamber v Pan 1 2 13mm standard copper v A Water drain temperature 140 F 60 C e Two pipes minimum 1 25mm by others must be inserted over the humidifier outlet pipes fig 10 This will create a critical air gap at the drain connections NOTE This air gap is critical for normal drain siphon operation 92000009005 9OQOOC Pan din Waerspy 0 Ar ehamber o avol _ Main drain 3 8 copper pipe by others Air gap XN Shut off valve 2 a E by others E Inimum 1 pipe ee niece ee ee by others Drain No drain trap required Fig 10a Correct installation 000099900 200000000 50050806080 98009569005 0090 06000000000 005005000000 QDQQQOOQ 25000000006 Main drain evaporation chamber must be straight Do not install elbow Fig 10b ncorrect installation E M 2 neptronic 7 Power supply connections CAUTION 1 RISK OF ELECTRIC SHOCK TURN OFF POWER AT THE EXTERNAL BREAKER FUSED DISCONNECT BEFORE PROCEEDING TO THE POWER SUPPLY CONNECTION 2 To reduce the risk of electric shock do not connect to a circuit operating at more than 150V to ground IMPORTANT The wiring to the humidifier should be done by a qualified electrician an
21. i Replace the cover on to the humidifier and lock it Start up of the humidifier a Close the main power breaker fused disconnect switch to the humidifier Reset of the operating hours to zero Press POWER push button to turn OFF the humidifier if necessary then press and hold the POWER and DRAIN push buttons for ten seconds section 16 Types of alarm Reset b Press the POWER push button The POWER indicator on the control panel will light c The humidifier will go into a fill cycle the FILL indicator will be on d If there is a humidity demand the humidifier will produce steam E A 2 neptronic 15 Exploded View and Bill of Material 15 1 Exploded view ET Fig 15 15 2 Bill of Material Wem Description mode Partnumber Evaporation chamber cylinder SKR 14 25 30 40 SW SKRCONT ASSY SKR 14 25 SP 9011 Evaporation chamber cover SKR 30 40 SP 9012 M Evaporation chamber gasket SKR 14 25 30 40 SP 9030 SKR 14 SE 5990 Heating element onic SE 9991 SKR 30 SE 5992 SKR 40 SE 5993 NW SKR120MAIN NSS Main PC board NW SKR240MAIN NSS 3 neptronic SKR Humidifier User Manual 16 Types of alarm CAUTION RISK OF ELECTRIC SHOCK POWER MUST BE TURNED OFF AT THE EXTERNAL BREAKER FUSED DISCONNECT BEFORE REMOVING THE COVER OF THE HUMIDFIIER e IMPORTANT A corrective action m
22. ifier Leave a clearance of 36 0 91m from the front panel 12 0 30m from the left side 6 0 15m from the right side and 8 0 20m above the humidifier 12 0 3m The SKR humidifier should be mounted 39 to 47po 1 to 1 2m above floor for the installation of water supply drain piping and electrical connections 39 47 1 1 2m Fig 4 Wall mounting IMPORTANT 1 Risk of malfunction The humidifier must be level 2 Risk of overheating Do not block the ventilation openings located on the top front sides and rear of the cabinet Check the solidity of the chosen support or wall bricks concrete stud partition wall etc on which the humidifier will be mounted see page 3 for the weight of the unit Use the keyholes located on the back panel of the humidifier Drill holes for the upper anchors holes with eyelets into the support or wall as per dimensions specified in the table fig 5 The hole dimensions diameter and depth should be in accordance with the recommendations of the chosen anchors Fig 5 If necessary install bolt anchors Insert the 2 screws holes with eyelet of a minimum diameter of 1 4 6mm screws are not supplied a BET Leave a clearance between screw heads and wall in order to permit the mounting of the humidifier Hang the humidifier on the 2 screws When the humidifier is positioned on the screws tighten the scre
23. ing charges are 5 00 minimum per order unless the shipment is billed to the purchaser s account or shipped freight collect e 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 e Major credit cards C O D Prepayment e For open account invoices are payable within 30 days from the date of invoice without no deduction unless specify otherwise e interest charge of 2 per month will be included on all overdue payments e 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 T Delivery terms e Shipments are Ex works 400 Lebeau St Laurent Quebec H4N 1R6 CANADA unless notified otherwise e 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 e 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
24. me on and the water will drain from the evaporation chamber The evaporation chamber will fill with water and drain again When the DRAIN indicator turns off press on the POWER push button f Repeat steps b through e one more time to ensure proper cleaning of the evaporation chamber Your humidifier is now fully operational No other action is necessary your SKR humidifier will produce steam upon demand from control s O 12 Description of operation of the SKR Press the POWER push button if the indicator is flashing to start the humidifier POWER indicator will light continuously If the evaporation chamber does not contain water the fill cycle is activated automatically FILL indicator is on If there is no demand from the humidity controller the humidifier is in a standby mode indicator is off On a demand of humidity the contact to activate the ventilation system fan closes FAN indicator is on and the relays close to power the electric element in the evaporation chamber STEAM indicator is on The water in the evaporation chamber will start to boil and evaporate The steam is released through the opening in the cover of the evaporation chamber The steam will travel in the flexible steam hose and disperse inside the supply duct through the steam dispersion tube During the evaporation sequence a certain amount of water is evaporated The water supply valve will open
25. mplate and drill a 1 1 2 88mm hole in the supply air duct for the installation of the of 7 8 diameter dispersion tube For the SKR 30 amp 40 use a template and drill a 2 51mm hole of in the supply air duct for the installation of the of 1 3 8 diameter dispersion tube Secure the dispersion tube bracket to the duct using sheet metal screws not included In a vertical duct installation the holes of the dispersion pipe should be aligned with the air N i 7 i 7 N N Z N N 4 i i 1 flow see fig 8d amp 8e below Air flow Air flow Fig 8d Fig 8e Alignment of dispersion pipe Alignment of dispersion pipe in a vertical duct in a vertical duct for the SKR 14 25 for the SKR 30 40 Min 8 200mm 4 100mm 3 76mm Fig 8a Horizontal duct with a minimum height of 8 200mm T H gt 10 254mm Fig 8b Horizontal duct with a minimum height of 10 254mm Air flow Down to up Fig 8c Mounting of the dispersion tube in a vertical duct E M 2 neptronic 6 Plumbing connections The SKR humidifier can operate with soft or hard water Therefore for normal operation no pre treatment of water is necessary IMPORTANT Plumbing installation should conform to Local and National Codes 6 1 Water supply Water inlet specifications v IMPORTANT Risk of malfunction do not use demineralize
26. r is not powered Airflow is not detected by the airflow proving switch Ventilation system fan is not operating The airflow proving switch is not detected or not operational The high limit duct humidistat is not operational if available Check the alarm indicator to determine the cause The installation of the steam dispersion tube is incorrect The capacity of the humidifier is too high The high limit humidistat is not installed properly or is defective if available The drain pipes are leaking are obstructed or the slope is incorrect A drain trap is installed on the drain line The water supply connection is leaking The installation of the flexible steam hose is incorrect Evaporation chamber is leaking steam e Check for the main power supply and fuses e Check that the sensor tube is connected properly inside the duct and to the airflow switch SKR Humidifier User Manual e Check that the airflow switch and the high limit duct e See section 16 Types of alarm to correct the e Check if the steam dispersion tube is installed e Install a high limit duct humidistat if required e Verify the installation and the operation of the high e Check the condition of the evaporation chamber humidistat if available are located properly Check the fan operation situation correctly limit duct humidistat if available Check all the couplings and drains under the unit Remove all drain traps
27. to replenish the water in the evaporation chamber Depending on the selected drain period section 10 fig 16b DS1 1 the water in the evaporation chamber will be drained DRAIN indicator is on to renew the water and to evacuate the minerals inside the evaporation chamber The SKR operates at full capacity until the programmed humidity level set point is reached When the set point is reached the humidifier will revert to standby mode The contact to activate the ventilation system fan section 10 fig 16a TB 2 will remain closed for a period of four minutes after steam production has stopped When the humidity level is below the set point the humidifier will produce steam again If there is no humidity demand for a period of more than 72 hours the humidifier will drain the water from the evaporation chambers automatically and go into standby mode E M 2 neptronic 13 Shut down procedure During seasonal shut down the humidifier should be placed out of service 1 2 3 Press DRAIN push button to empty the water from the evaporation chamber the DRAIN indicator will be on Once the cycle has ended the DRAIN indicator will turn off Close the shut off valve external to the humidifier on the water supply line Open the main power breaker fused disconnect switch to the humidifier 14 Maintenance 14 1 General IMPORTANT Failure to perform the required periodic maintenance will void the warranty
28. too high for the local water conditions Too much scale may impair the normal operation of the humidifier or damage it In this case increase the frequency of maintenance as necessary Cleaning the electric element and cover a The cover of the evaporation chamber and element will in general not require cleaning However if cleaning is required proceed as per the cleaning of the evaporation chamber IMPORTANT The use of wire brush or any non recommended acid will void the warranty Checking the gasket a Check the gasket The gasket should be cracked The gasket must be replaced a minimum at every second maintenance of the evaporation chamber or after one year of operation Replace more frequently if required Reassembling the evaporation chamber a Rinse out the cylinder and the cover with water Place the gasket inside the cover before installing the cover on the evaporation chamber Align the dimple on the cover with the latch located nearest to the water drain fill coupling fig 2 Tighten the three latches around the cover Replace the evaporation chamber in the humidifier Tighten the water drain fill coupling Replace the steam hose on the outlet of the evaporation chamber and secure steam hose with the clamp h Reconnect the high temperature switch connector and the high voltage connector of the heating element CAUTION RISK OF OVERHEAT AND FIRE MAKE SURE THE HIGH VOLTAGE CONNECTOR IS PROPERLY LOCKED
29. ust be taken before doing a reset e The alarm contact normally open will close when there is an alarm ALARM E Service required 1 Flashing continuously Service required 2 Indicator is continuously on SKR Humidifier shut off High temperature 2 flashes pause Drainage 3 flashes pause Fill 4 flashes pause Level sensors 5 flashes pause Power The unit is not powered Not flashing Operating hours exceeded the service required alarm hour setting DS1 2 Operating hours exceeded by more than 50 hours the service required alarm setting DS1 2 Temperature in the evaporation chamber exceeded the preset temperature of the high temperature switch Drainage sequence is not correct Time to fil the evaporation chamber exceeded the preset time in the microprocessor The level sensors do not detect the water level correctly Alarm No interruption of the operation of the humidifier Alarm The operation of the humidifier is interrupted Alarm The operation of the humidifier is interrupted Alarm The operation of the humidifier is interrupted Alarm The power to the heating element is interrupted Alarm The operation of the humidifier is interrupted Proceed to a service See section 14 Maintenance Proceed to a service See section 14 Maintenance Check that the static pressure inside the duct at the steam dispersion tube does not exceed 0 5 W G 12
30. ws to secure the humidifier neptronic 5 Steam output connection 5 1 5 2 Typical installation Fig 6 General recommendations 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 IMPORTANT Risk of malfunction Avoid kinks sags and areas where condensate can become trapped a 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 fig 7b 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 piping fig 7c This trap should have a minimum height of 3 76mm Total length of the steam hose or rigid pipe should not exceed 6 feet 1 8 meters Longer runs will result in added condensation losses and may result in system malfunction Minimum radius of any change of direction should be 12 307mm A maximum of 2 long radius elbows 12 are to be used on the steam distribution line Whenever using rigid copper pipe use insulation to diminish condensate build up SKR Humidifier User Manual Slope 1596 minimum 1 Clamps 2 Flexible hose
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