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This manual has been written to ensure correct, safe and sustainable operation of the SKVF evaporative cooler and is intended for use by engineers and technical personnel trained by Neptronic or their official agents. This manual must be read thoroughly before specifying, designing, installing or operating an SKVF. Please retain for reference and contact Neptronic for any questions.
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Correct Use Neptronic systems and its products are designed only for cooling and humidification use. Any other application is not considered appropriate for the intended purpose. The manufacturer cannot be made liable for any damage resulting from incorrect use.
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Inspection Upon receipt, and once packaging material has been removed, an inspection must be carried out to ensure that no damage occurred during transit. Any damage must be reported with no delay to your Neptronic representative. www.neptronic.com Page | 4...
67°F 70°F Leaving condition: 76%RH 80%RH 85%RH 87%RH (16°C) (18°C) (19°C) (21°C) Note: Humidity output for high RH entering conditions may be less than the above values calculated with an evaporation factor for air at 50%RH. www.neptronic.com Page | 8...
(it is recommended to leave 24” (610 mm) of clearance when more frequent access is required for servicing) • Control panel: 24” (610 mm) minimum from the control panel Note: Above minimum clearances are indicated for inspection and servicing access. 14" (356mm) 24" (610mm) Illustration 4 - Evaporative Cooler Positioning www.neptronic.com Page | 11...
• The screws must not be inserted into the SKVF at a depth of more than ¾” (20mm). 4x mounting holes with screws Bottom View: Location of Mounting Holes Illustration 5 - Ceiling Installation www.neptronic.com Page | 12...
Top bracket 4x SS self-tapping screws (#8-18 x ½ Air filter 2x SS self-tapping screws (#8-18 x ½ 14x SS self-tapping screws (#8-18 x ½ Media panel Bottom bracket assembly Illustration 6 - Air Filter Installation www.neptronic.com Page | 13...
Reverse osmosis (RO) water may be used for areas using hard water in order to minimise scale build-up. Reverse Osmosis Water For SKVF evaporative coolers using RO water, Neptronic recommends operating the system within the following parameters: SKVF Type Conductivity >...
To facilitate servicing, a shut off valve (not supplied) must be installed in the water line, within 40” (1m) of the evaporative cooler. Models Water Inlet Connection Size Ø1/2” NPT (DN15) connection SKVF Water supply connection ½ NPT (DN15) Illustration 7 - Water Supply Connection www.neptronic.com Page | 15...
The main drain and pan drain must not be piped together or to other appliances. Main drain Pan drain Ø3/4 (DN20) Ø3/4 (DN20) Maximum 20ft (6m) Minimum open drain of Ø1 ½ " (DN40) Illustration 8 - Water Drain Connections www.neptronic.com Page | 16...
The Printed Circuit Board (PCB) of the SKVF Evaporative Cooler is equipped with an advanced microprocessor, which controls all the functions of the evaporative cooler. All electrical control connections have been grouped alongside the bottom left corner of the PCB. www.neptronic.com Page | 18...
These contacts are used to switch a low voltage, ideally 24V, with a switching current of no more than 3 Amps. • It is recommended to use the Normally Closed contact, as this contact will open in the event of a fault. www.neptronic.com Page | 19...
ON/OFF Control Connect the On/Off demand contact between TB3 1&5. If this contact opens, the SKVF unit will turn off. If this contact closes, the SKVF unit will operate. Illustration 13 - On/Off Control Typical Wiring www.neptronic.com Page | 20...
Control by Humidistat (External Mode) External control, using HRO20 humidistat: Illustration 14 - Control Signal from HRO20 Humidistat External control, using HRO20 humidistat with SHR10 as room sensor: Illustration 15 - Control Signal from HRO20 Humidistat with Remote Sensor (SHR10) www.neptronic.com Page | 21...
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Humidity or temperature controlled internally, using a room sensor: Illustration 16 - Control Signal from Remote Sensor (SHR10) Control by External Signal Humidity or temperature controlled externally, using an external signal source: Illustration 17 - Control Signal from External Device www.neptronic.com Page | 22...
Note: BACnet MS/TP is configured by default. To change the communication interface to Modbus RTU, access the NtwrkOption setting located in the Network sub-menu of the Integration menu (see page 39). Illustration 18 - Network Communication Connections www.neptronic.com Page | 23...
Mode Selection (JP1) RUN: HRL24 is in Operation Mode. The HRL24 must be set in this mode to operate properly. If not locked, setpoint can be modified by the end user. PGM: HRL24 is set in Programming Mode. www.neptronic.com Page | 24...
The back/menu button is used to go to previous menu or to access the Main Menu Back/Menu Button page from the Idle Screen. The enter button is used to advance to the next sub-menu, to access selected Enter Button option or to confirm set parameter value. www.neptronic.com Page | 25...
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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 | 26...
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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 | 27...
Physical IO Displays the status of the high limit contact. SupplyHighLimit: Closed * (Closed, Open) If Open is displayed, it indicates that the humidity level has exceeded the setpoint on the high limit humidistat. www.neptronic.com Page | 28...
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Displays the control signal value of the ECM fan. * (Operational, Operational Read-Only, SysStatus: Operational Download required, Download in progress, Displays the current system status. System Non-operational, Backup in progress) Vendor: Neptronic Displays the name of the vendor of the product. (Always Neptronic) www.neptronic.com Page | 29...
Units: C, F UTCOffset: -300min min: -720min, max: 720min Configure the value of the UTC offset. DaylightSavings: No, Yes Select whether to enable daylight savings or not. System YYYY-MM-DD LocalDateTime: Configure the current date and time. 00:00:00 www.neptronic.com Page | 31...
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Humidity: Current value * (min: 0.0%, max: 100.0%) Displays the room humidity value measured by the HRL24 controller. Displays whether the setpoint obtained from the HRL24 controller can be modified or LockSetpnt: Unlock Unlock, Lock not. www.neptronic.com Page | 32...
(Only appears for SKVF-R models.) Perform one of the following actions for the water supply valve: turn off WtrSupRequest: Default Off, Default, On the water supply valve, default operation, turn on the water supply valve. (Only appears for SKVF-D models.) www.neptronic.com Page | 33...
Select the reading source for the room humidity demand. RHSrc: None None, RoomRH, Network, HRL (Network option only applicable for models connected to BACnet or Modbus.) StptSrc: None None, Internal, ControlInput Select the room humidity demand setpoint source. www.neptronic.com Page | 34...
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Select the control high limit source for the evaporative cooler. None, ControlInput, SupplyHLDemand, Network, HighLimitSrc: None (Network option only applicable for models connected to BACnet or SupplyTempDemand Modbus.) BinDemandSrc: None None, BinaryExtDemand Select the demand source when in On/Off control mode. www.neptronic.com Page | 35...
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0.00∆°F [min: -10.00∆°C, max: 10.00∆°C] Bias: Set the bias value for the room temperature analog input. [0.00∆°C] Units: ∆°C, ∆°F 0-10Vdc, 2-10Vdc, 4-20mA, 0-20mA SignalType: 0-10Vdc Select the signal type for the room temperature analog input. www.neptronic.com Page | 36...
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Set the deadband value for the demand. MinProdOut: min: 0%, max: 100% Set the minimum production output value for the fan. MaxProdOut: 100% min: 0%, max: 100% Set the maximum production output value for the fan. www.neptronic.com Page | 37...
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Set the duration of time for the drying cycle for the evaporative media. Set the hour of day during which the drying state of the evaporative HourOfDayDryingCycle: 24hr min: 0hr, max: 24hr media is verified, in order to initiate a drying cycle if necessary. www.neptronic.com Page | 38...
RxInvalid: troubleshooting purposes. RxLost: Displays information on the transmitted communication frames for troubleshooting purposes. TxLost: Set the User Datagram Protocol (UDP) port number. BACnetIPPort: 47808 min: 0, max: 65535 BACnet port number is set by default. www.neptronic.com Page | 39...
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If turned to On, then the evaporative cooler event messages will AppMsg: Off, On be sent to the email configured in the SMTP sub-menu. BACnetETH For models connected to BACnet Ethernet. RxValid: Displays information on the received communication frames for RxInvalid: troubleshooting purposes. RxLost: www.neptronic.com Page | 40...
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Displays the actual subnet mask. ActualDefaultGateway: 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 | 41...
* Use the ResetAlarms function in the Request setting (see page 33). ** Use the ResetWtrServCnt function in the Request setting (see page 33). *** Use the ResetServCnt function in the Request setting (see page 33). www.neptronic.com Page | 42...
Verify that the setpoints are properly adjusted. 12. Turn the power on using the circuit breaker. 13. Confirm the control set-up of the evaporative cooler and verify that the setpoints are properly adjusted. www.neptronic.com Page | 43...
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(only for SKVF-R seconds. models) 7. Once the drain cycle is complete, restart the evaporative cooler by pressing and holding the Power button for 3 seconds. 8. The evaporative cooler is now ready for normal operation. www.neptronic.com Page | 44...
• Verify if the 5μm pre-filter and silver ion service warning has appeared (WtrServiceDue). If so, replace the 5μm pre-filter and silver ion dosing cartridges. • Observe the operation of the water flow and evaporation cycle. www.neptronic.com Page | 45...
Immediately stop the SKVF and perform a manual cleaning and disinfection. Corrective More than 100,000 action must be undertaken to reassess the level of hygiene control and a new risk analysis of the water network and system. www.neptronic.com Page | 46...
4. To reinstall the evaporative media after servicing, slide it back into the media cassette and re-attach the brackets using the 4 screws. Media cassette Evaporative Media 2x media cassette brackets 4x Screws Illustration 24 - Evaporative Media Removal www.neptronic.com Page | 47...
In order to ensure that the residue is properly removed, manually clean all surfaces. Ensure that the disinfection solution reaches all the ends of lines of the pipe-work. It may also be necessary to disinfect the supply water system pipe-work or water treatment systems. Neptronic recommends routine disinfection of the evaporative cooler in the following situations: •...
Installation Instructions and User Manual De-scaling If untreated tap water is used, de-scaling of the SKVF may be required. To avoid accumulation of scale, Neptronic recommends using RO water whose conductivity is between 100 and 550 µS/cm. When using city water, Neptronic...
MERV13 filter are pointing in line with the direction of the airflow. 5. Slide the air filter back into the bracket assembly. 6. Use the screws to re-attach the bracket to the SKVF air filter assembly. www.neptronic.com Page | 50...
CAUTION: Risk of fire. Replace only with an identical 4A, 250V fuse (NP092050019). Contact factory for more details. 11. Reattach the fuse cover back onto the new fuse. 12. Reattach the control panel using the screws that were previously removed. www.neptronic.com Page | 51...
The media cassette is not installed and installed and fix the position if performance correctly. necessary. Check to see that the hoses are not Not enough water is flowing. blocked and clean or replace if required. www.neptronic.com Page | 52...
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Evaporative cooler is The display FFC cable is not connected cable are properly secured and are on cooling/humidifying (Screen properly. the correct side. turned Off, Status Display LED: Blue) The LCD display is defective. Replace the LCD display. www.neptronic.com Page | 53...
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