Health & Safety Neptronic has considered the aspects of the design of their humidification systems to reduce as much as possible the risk of Legionnaires’ disease and other similar conditions, but it is important that users are also aware of their responsibilities.
SKS4 Steam to Steam Humidifier 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.
Exercise caution before lifting to ensure that the load is balanced. Lifting of the SKS4 humidifier MUST always be carried out using the appropriate Neptronic Lifting bracket. The lifting sling angle must be greater than 30˚ to the horizontal. Refer to Dimensions and Weight section for system dry weights.
2 - Raw steam or HTHW pressure at actual point of connection to humidifier. 3 - Maximum static duct pressure is 1.250 kPa. For higher static duct pressures, please consult Neptronic or its authorized distributor. www.neptronic.com Page | - 7 -...
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SKS4-200-CHP capacity up to 172 kg/hr, depending on flow, peak temperature and pressure drop. SKS4-333-CHP capacity up to 287 kg/hr, depending on flow, peak temperature and pressure drop. SKS4-667-CHP capacity up to 574 kg/hr, depending on flow, peak temperature and pressure drop. www.neptronic.com Page | - 9 -...
The SKS4 humidifier must be installed in a way that ensures that the steam hose length is kept to the shortest possible length. The SKS4 humidifier must be installed with provision for the steam supply piping connections and steam condensate trap installation. www.neptronic.com Page | - 13 -...
Installation Instructions and User Manual Steam Dispersion System Selection In order to prevent the accumulation of condensation in air ducts, Neptronic has designed three basic configurations of steam distribution systems to provide the most economical solution for any particular application.
100mm for capacities up to 200kg/h 125mm for capacities up to 314kg/h For all humidifiers having a capacity below 100kg/h, use standard Neptronic S.A.M.E2 steam distribution pipes. A Multi-Steam system can be offered if shorter absorption distances are required.
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Placement of Steam Pipe in Vertical Duct 2 Pipes 3 Pipes 36’’ minimum 24’’ minimum (900mm) (600mm) 1/4 W 1/2 W 1/4 W 1/6 W 1/3 W 1/3 W 1/6 W Illustration 16 - Pipe Placement: Vertical Duct www.neptronic.com Page | - 18 -...
Steam Distribution Manifolds (S.A.M.E2) minimum length = 35" (900mm) Illustration 17 - SKS4-100-SLP Steam Pipe Connections Models SKS4-130-SLP & SKS4-190-SLP For these models, a single Ø76mm feed pipe must be connected to three S.A.M.E2 steam manifolds with a suitable reduction at the lowest point to allow a Ø15mm condensate drain from the main steam supply.
Installation Instructions and User Manual Multi-Steam System Selection of Multi-Steam System For all Multi-Steam units, use the Neptronic Humidisoft program to size the unit. Where two Multi-Steam units are required (duties in excess of 314kg/h), make your selection using the following rules: Divide the air flow volume in half.
Total length of steam conduit must not exceed 16 feet (5m). Illustration 21 - SKS4-100-SLP to SKS4-690-SLP, SKS4-200-CHP Steam Pipe Connections Models SKS4-950 & 1250-SLP, SKS4-333 & 667-CHP For these models, two Ø100mm or Ø125mm steam outlets must be connected to two Multi-Steam with a suitable reduction at the lowest point to allow a Ø15mm condensate drain from the main steam...
After installation, field piping and humidifier steam piping must be checked for leaks. All leaks MUST be sealed prior to commissioning the Humidifier. Do not use thermostatic or thermodynamic traps for condensate from heat exchanger. www.neptronic.com Page | - 22 -...
30cm below the condensate outlets, with condensate pocket fitted before the trap. Thermostatic type steam traps are recommended as the small capacity trap to eliminate condensate from the raw steam line. www.neptronic.com Page | - 23 -...
Install the actuated valve (AM060 actuator with globe valve) between 20 to 30 degrees from vertical in order to reduce the convection heat to the actuator. 20-30º ELECTRIC ACTUATOR VALVE BODY STEAM SUPPLY SIDE FLOW DIRECTION Illustration 25 - Control Valve Orientation and Angle www.neptronic.com Page | - 24 -...
For normal operation, pre-treatment of water is not necessary. As the humidifier is equipped with the Neptronic Anti-Foaming Energy Conservation (AFEC) system, which drains the humidifier in the presence of foam to ensure clean and safe operation, the use of softened water is not recommended.
No drain trap is required on the main drain. SKS4 Ø ⅞ ” (22mm) Ø 1 ⅜” (35mm) Drip Pan Building water drain Ø 1 ½” (40mm) minimum Illustration 27 - Water Drain Connections www.neptronic.com Page | - 26 -...
Do not use raw steam or HTHW piping as an electrical ground. Disconnect Switch Illustration 28 - Power Supply Connection Electrical Power Supply The SKS4 humidifier requires the following single phase power supply: Model Voltage Current SKS4-XXXX-230 240Vac - 1ph 0.75A www.neptronic.com Page | - 27 -...
The Printed Circuit Board (PCB) is equipped with an advanced microprocessor, which controls all of the functions of the humidifier. All electrical control connections have been grouped alongside the bottom left corner of the PCB. www.neptronic.com Page | - 28 -...
Each series has one Normally Closed contact and one Normally Open contact. It is recommended to use the Normally Closed contact, as this contact will open in the event of a humidifier fault. www.neptronic.com Page | - 29 -...
TB4 1 and TB4 3, 4 and/or 5. To configure the source of the signal(s), access the Control sub-menu located in the Installation menu (see page 42). Humidity Control by Humidistat (External Mode) Humidity controlled externally, using HRO20 humidistat: Illustration 32 - Control Signal from HRO20 Humidistat www.neptronic.com Page | - 30 -...
Illustration 33 - Control Signal from HRO20 Humidistat with Remote Humidity Sensor (SHR10 or SHC80) Humidity Control by Humidifier (Internal Mode) Humidity controlled internally, using SHR10 or SHC80 as space sensor: Illustration 34 - Humidity Signal from Remote Humidity Sensor (SHR10 or SHC80) www.neptronic.com Page | - 31 -...
Installation menu (see page 42). To setup the communication parameters, access the Integration menu (see page 44). Note: BACnet MS/TP is configured by default. For Modbus RTU connection, please consult factory. Illustration 35 - Network Communication Connections www.neptronic.com Page | - 32 -...
Return SHC80 Humidity sensor Steam dispersion manifold Or room HRO20 humidistat High limit SHC80 for VAV application only SHH8 High limit humidistat Illustration 36 - Controls Placement (Steam Dispersed into a Duct or AHU) www.neptronic.com Page | - 33 -...
SKS4 Steam to Steam Humidifier Installation Instructions and User Manual Steam Actuated Valve For models SKS4-100-SLP to SKS4-950-SLP, SKS4-200 & 333-CHP (1 control valve), connect the humidifier to the actuated valve (AM060 actuator with globe valve) as per the following illustration. ...
Back/Menu Button the Main Menu page from the Idle Screen. The enter button is used to advance to the next sub-menu, to Enter Button access the selected option or to confirm set parameter value. www.neptronic.com Page | - 35 -...
Grants access to General, User and Service menus. 4433 Installation Grants access to General, User, Service and Installation menus. 5544 Integration Grants access to General, User, Service, Installation and Integration menus. Note: To modify or retrieve lost passwords, please contact factory. www.neptronic.com Page | - 36 -...
Note: Available settings and range selections may vary depending on current configuration. The tables in the following sections display all the possible selections. The Description/Notes column indicates the conditions required for the associated setting to appear. www.neptronic.com Page | - 37 -...
(Only appears if ModHLProfile is set to InternAnalog or SupplyHLReadingSrc is set to SupplyHLRH.) Displays whether a water leak has been detected. WtrLeakDet: * (Ok, Leak) If Leak is displayed, it indicates that there is a leak within the water line. www.neptronic.com Page | - 38 -...
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Download required, Download in progress, Displays the current system status. Non-operational, Backup in progress) Vendor: Neptronic Displays the name of the vendor of the product. (Always Neptronic) Model: Displays the humidifier model name. FirmwareRev: Displays the latest firmware revision. CoreVersion: Displays the current application software version.
Select whether to enable or disable the key press sound. Interface Language: English (Language options vary based on region.) Select the device language. Select whether to use a metric or imperial system of units for the local Units: Metric Metric, Imperial device. www.neptronic.com Page | - 40 -...
None, Reset Alarms, Drain, Reset Counters initiate a drain cycle or reset warning alarms. Extended Config WaterProbeAutoCalib: Always None, Once, Always Select the frequency of the auto calibration setting for the water level sensor. www.neptronic.com Page | - 41 -...
Select the signal type for the control demand analog input. Select the signal type for the room humidity analog input. (Only appears if ControlProfile is set to InternAnalog or RoomRHSrc is RoomRHSigType: 0-10Vdc 0-10Vdc, 2-10Vdc, 4-20mA, 0-20mA set to RoomRH.) www.neptronic.com Page | - 42 -...
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When set to Off, the TankRinseInterval setting is disabled if the humidifier is turned on. Select whether to enable automatic rinse cycles while the humidifier is turned off. TankRinseOff: Off, On When set to Off, the TankRinseInterval setting is disabled if the humidifier is turned off. www.neptronic.com Page | - 43 -...
Select the Modbus communication port configuration. Odd Parity, 1 Stop bit BaudRate: 19200 9600, 14400, 19200, 38400, 57600 Select the baud rate for data transfer. Extended IP0:192.168.92.101: SysLogIF: Select the IP address for the system log interface. Config 2971 www.neptronic.com Page | - 44 -...
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Current value Displays the actual default gateway. ActualDnsServer: Current value Displays the actual DNS server. ETHSettings Displays the MAC address of the Ethernet interface. EthernetMacAdd: Current value (Only applicable if using an Ethernet connection.) www.neptronic.com Page | - 45 -...
Indicates that the due date for servicing the humidifier has arrived. See Service ServiceDue Manual ** section on page 49 for details. * Use Reset Alarms function in Request setting (see page 41). ** Use Reset Counters function in Request setting (see page 41). www.neptronic.com Page | - 46 -...
Verify that the setpoints are properly adjusted. 17. Turn the power on using the disconnect switch or circuit breaker. 18. Confirm the control set-up of the humidifier and verify that the setpoints are properly adjusted. www.neptronic.com Page | - 47 -...
5. Once the drain cycle is complete, restart the humidifier by pressing and holding the Power button for 3 seconds. 6. Reset the Airflow switch if needed. 7. The humidifier is now ready for normal operation. www.neptronic.com Page | - 48 -...
CAUTION: Risk of electric shock. The electric supply of the humidifier must be shut down. Disconnect the power at the External Breaker/Fused Disconnect before commencing servicing. Once the drain cycle is complete, remove the power supply to the humidifier at the disconnect switch or the breaker. www.neptronic.com Page | - 49 -...
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Ensure that the water inlet aperture is not blocked. 2. Remove the excess water using the manual drain valve, in order to clean the scale pan area. 3. Close the manual drain valve. Illustration 43 - Manual Drain Valve www.neptronic.com Page | - 50 -...
3. Clean the meshing cap by removing any debris located inside of it. 4. Reassemble the meshing in the strainer body using the cap. 5. Reopen the steam supply on the steam supply line. www.neptronic.com Page | - 51 -...
The display FFC cable is not Humidifier is producing cable are properly secured and are on connected properly. steam (Screen turned Off, the correct side. Status Display LED: Blue) The LCD display is defective. Replace the LCD display. www.neptronic.com Page | - 52 -...
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