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Neptronic SKVF 15 Series Installation Instructions And User Manual Download Page 19

 

SKVF Evaporative Cooler 

 Installation Instructions and User Manual 

 

www.neptronic.com

 

Page | 18 

 

Printed Circuit Board 

JP25

1 2 3

JP6

JP20

1

2 3

JP9

1

2

JP10

TB
4

TB
3

TB
2

TB
5

TB
6

T

B

1

E

O

L

JP1

E

O

L

JP2

SD1

Micro SD 
card port

TXD
RXD

TXD
RXD

CN2

USB 
drive port

4

LCD1

4 5

JP8

JP3

JP4

JP5

ETHERNET

BOARD

ETHERNET

BOARD

NETWORK 

BOARD

1

2

1

2

1

2

3

4

ETHERNET 

PCB

NETWORK

PCB

Electrical 

Control 

Connections

FLOAT 

SWITCH

WATER 

VALVES 

CIRCULATION 

PUMP

FAN

POWER

POWER

5

PCB 

Fuse

 

Illustration 10 - Printed Circuit Board Interface 

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. 

Summary of Contents for SKVF 15 Series

Page 1: ...SKVF ESL 211022 Evaporative Cooler SKVF Series Installation Instructions and User Manual READ AND SAVE THESE INSTRUCTIONS 4011008 ...

Page 2: ...ut the Manual These installation and operation instructions have been developed to facilitate the installation of the SKVF evaporative cooler The strict application of these instructions will ensure conformity of your installation and operation as per the manufacturer s recommendations The application of these instructions is one of the conditions for the application of the warranty The applicatio...

Page 3: ...luding during installation and maintenance must be identified by a competent Health Safety representative who shall be responsible for introducing effective control measures as necessary The customer is responsible for ensuring that the installation of the equipment complies with all local regulations CAUTION Maintenance personnel must be trained by Neptronic or their official agent and it is the ...

Page 4: ...ystem regularly refer to service section of the present Installation Instructions and User Manual WARNING Risk of Legionnaires disease which can be fatal The SKVF evaporative cooler must be installed operated and serviced in accordance with this Installation Instructions and User Manual WARNING In the event that the SKVF is turned off for prolonged periods more than 24 hours ensure that any water ...

Page 5: ...lth Safety representative and that effective control measures are put in place WARNING It is the customer s responsibility to ensure that operators are trained in handling heavy goods and to enforce the relevant lifting regulations WARNING The SKVF must always be handled and lifted with care and remain in its original packaging for as long as possible prior to installation WARNING The SKVF package...

Page 6: ...ter Monitoring 14 Water Supply Installation 15 Water Drain Connections 16 Electrical Connections 17 Electrical Power Supply 17 Printed Circuit Board 18 Safety Contacts 19 Dry Contacts 19 ON OFF Control 20 Modulating Control 21 Network Communication 23 HRL24 Control 24 Controller Configuration 25 Controller Features 25 Menu General 28 Menu User Settings 31 Menu Service 33 Menu Installation 34 Menu ...

Page 7: ...dels Stainless steel 304L tank Pan drain connection Main drain connection Water supply connection Controller PCB SKVF x15 to x30 Models ECM fans Stainless steel 304L media cassettes Circulation pump Only on SKVF R models Drain valve Only on SKVF R models Stainless steel 304L tank Pan drain connection Main drain connection Water supply connection Controller PCB Control panel Evaporative medias SKVF...

Page 8: ... the factory Only 230 240Vac 1ph models are available with CE certification Available Options The following options are available when purchasing a SKVF evaporative cooler Air filter Air deflector BACnet and Modbus network communication board Ethernet IP board 5 microns pre filter and silver ion dosing anti bacterial cartridges UV light Technical Specifications Table 1 Technical Specifications Mod...

Page 9: ...70 F 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 Table 3 Output Specifications 208 to 240V models 72 F 22 C Entering temperature Entering RH 10 RH 20 RH 30 RH 40 RH CFM m3 h Humidification Cooling Humidification Cooling Humidification Cooling Humidification Cooling lbs h kg h kBTU h kW lbs h kg h...

Page 10: ...SKVF x15 to x30 Models Table 4 Dimensions and Weight SKVF x15 to x30 Models Model Dimensions inch mm Weight lb kg A B C D Empty Full SKVF x15 xxB 27 686 48 1219 14 5 368 6 8 173 124 56 164 74 SKVF x15 xxL SKVF x15 xxR 27 686 48 1219 23 8 605 6 8 173 132 60 172 78 SKVF x30 xxB 27 686 48 1219 14 5 368 5 127 133 60 173 79 SKVF x30 xxL SKVF x30 xxR 27 686 48 1219 30 8 782 5 127 152 69 191 87 ...

Page 11: ...neptronic com Page 10 SKVF x60 Models A B 1 2 30 mm 3 25 83 mm C D Illustration 3 Dimensions SKVF x60 Models Table 5 Dimensions and Weight SKVF x60 Models Model Dimensions inch mm Weight lb kg A B C D Empty Full SKVF x60 xxB 50 8 1290 48 1219 14 5 368 5 127 192 87 269 125 ...

Page 12: ...e that the ambient temperature is less than 104 F 40 C Construct the drainpipe in such a way that there is no water accumulation and stagnation Positioning Ensure that the humid airstream of the fan s is not located close to a surface on which condensation can easily build up Ensure that the control panel fan s evaporative media and plumbing connections are accessible in order to permit servicing ...

Page 13: ...em Ceiling Installation The SKVF can be hung by the ceiling using an appropriate support platform by others Consult local codes and regulations for minimum structural requirements for such platforms Ensure to use platforms that allow for level adjustment in order to keep the SKVF at a level of 1 in all directions Ensure to unscrew the legs of the SKVF and keep the 4x 3 8 16 screws The SKVF must be...

Page 14: ...air filter into the bottom bracket assembly 3 Using 4x stainless steel self tapping 8 18 x screws secure the top bracket onto the SKVF media panel 4 Using 2x stainless steel self tapping 8 18 x screws secure the top bracket to the bottom bracket assembly Media panel Bottom bracket assembly Air filter Top bracket 4x SS self tapping screws 8 18 x 2x SS self tapping screws 8 18 x 14x SS self tapping ...

Page 15: ...f tanks and reservoirs using RO water is only permitted as part of a properly managed and hygiene monitored water system and must be included as part of a water system risk assessment Controlled Substances The supply water of the SKVF must be free of any toxic carcinogenic and flammable substances in order to avoid contamination of the air passing through the media Refer to the table below for a l...

Page 16: ... the treated water with tap water to achieve the recommended conductivity Alternatively install an SKVF with recirculation SKVF R and setup the dilution ratio accordingly by modifying the value of the DilutionRatio setting located in the Installation menu see page 34 It is recommended to install a standard water strainer in the water supply line It is recommended to install a water hammer arrestor...

Page 17: ...he slope of the drain line is no less than 10 The maximum equivalent pipe length of the main drain must not exceed 20ft 6m between the drain outlet of the evaporative cooler and the open drain Otherwise the drain pipe diameter must be increased to 1 1 2 DN40 A minimum 1 25mm air gap must be kept between the connection of the SKVF drain pipes and the open drain line in order to prevent any backflow...

Page 18: ...tion of at least 1 8 3 mm An external over current protection and disconnect circuit breaker must be installed on the supply adjacent to the unit Ensure that the size of the wire conductors is appropriate for the maximum current supplied Ensure that the incoming power cable is secured via a suitably sized cable gland Ensure that each terminal connection is secured firmly with a cable ferrule The S...

Page 19: ...T BOARD ETHERNET BOARD NETWORK BOARD 1 2 1 2 1 2 3 4 ETHERNET PCB NETWORK PCB Electrical Control Connections FLOAT SWITCH WATER VALVES CIRCULATION PUMP FAN POWER POWER 5 PCB Fuse Illustration 10 Printed Circuit Board Interface 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 elect...

Page 20: ...itch as open but will not generate an alarm If an airflow switch is not used install a jumper between terminals TB3 1 2 The High limit humidistat contact must be wired between terminals TB3 1 3 If this contact opens operation of the SKVF unit will stop and an alarm message will be displayed If a high limit humidistat is not used install a jumper between terminals TB3 1 3 The Interlock must be wire...

Page 21: ...5 Alarm contacts TB1 Common Normally Open Normally Closed Common 1 2 1 2 1 2 3 4 5 1 2 3 4 5 6 1 2 3 1 Illustration 12 Alarm and Service Contact Wiring 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 ...

Page 22: ...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 34 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 ...

Page 23: ...porative Cooler Internal Mode 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 ...

Page 24: ...nals TB1 1 2 to the network RS485 A B The network control signal s must be selected by accessing the Control sub menu located in the Installation menu see page 34 To setup the communication parameters access the Integration menu see page 39 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 o...

Page 25: ...1 2 3 4 5 1 2 3 4 5 6 1 2 3 1 2 3 Mode Selector Jumper RUN Operation Mode PGM Programming Mode PGM RUN A B C JP1 Temperature Sensor Humidity Sensor TB1 COM PWR A B Common 24 Vac A B 1 2 3 5 6 7 4 SKVF PCB Control Connections RS 485 HRL24 HRL24 Illustration 19 HRL24 Wiring Mode Selection JP1 RUN HRL24 is in Operation Mode The HRL24 must be set in this mode to operate properly If not locked setpoint...

Page 26: ...tivation Even when the evaporative cooler is powered off the controller remains operational Drain Button The drain button is used to manually activate the drain cycle Must be pressed and held for 3 seconds to perform the related action in order to prevent accidental activation Even when the evaporative cooler is powered off a manual drain cycle may be initiated Once the manual drain cycle is compl...

Page 27: ... accessed by pressing the Back Menu button enabling access to the General menu To view other menu options and perform configurations to the system press Enter while on the Idle Screen to advance to the Login Screen where a valid password must be entered Four different passwords can be used each granting access to an additional menu option depending on the access level assigned to the provided pass...

Page 28: ...tegory and press Enter to advance to the next sub menu B Use the and buttons to increase and decrease values Use the buttons to scroll to the next or previous parameter Values are saved as soon as a change is made C Press the Back Menu button to go back one menu The current menu location is displayed at the top of the screen D To exit completely press the Back Menu button until you return to the I...

Page 29: ...arm Drying Displays the current state of operation of the evaporative cooler OccupancyState Occupied Occupied Unoccupied Vacant Off Displays the current occupancy state ControlState Current value Off Normal LowLimit HighLimit NoAirFlow Interlock Displays the current state of the safety control circuit and whether the circuit has been disconnected due to a safety switch Control RoomRHDemand Current...

Page 30: ...ys the supply high limit temperature reading value Only appears if ModHLProfile is set to InternCoolAnalog or TempSrc is set to SupplyTemp FanFeedBack Current value min 0Hz max 30000Hz Displays the feedback value from the ECM fan FanFeedBack2 Current value min 0Hz max 30000Hz Displays the feedback value from the second ECM fan Only applicable for SKVF x60 models FloatSwitch Current value Inactive ...

Page 31: ...e MCULoad Current value min 0 max 100 Displays the current microcontroller load MemoryLoad Current value min 0 max 100 Displays the current memory load Runtime Current value min 0 sec max 999999999 sec Displays the number of seconds that the system has been powered on This value is reset every time the system is shut off ResetReason None None BOR Pin POR Soft IWDG WWDG LPWR Unknown Displays the re...

Page 32: ...ccupied state VacantStp 78 8 F 26 0 C min 32 0 F max 104 0 F min 0 0 C max 40 0 C Units C F Define the room temperature demand setpoint value used during Vacant state RHSupplyHLLoop 3 Only appears if ModHLProfile is set to an internal humidity mode or HighLimitSrc is set to SupplyHLDemand OccStp 80 0 min 0 0 max 100 0 Define the supply high limit humidity demand setpoint value used during Occupied...

Page 33: ...ss sound Language English English Select the device language Units Imperial Metric Imperial Select whether to use a metric or imperial system of units for the local device HRL 3 For units connected to the HRL24 controller Temperature Current value min 40 0 F max 500 0 F min 40 0 C max 260 0 C Units C F Displays the room temperature value measured by the HRL24 controller Humidity Current value min ...

Page 34: ... to Event 6 Create a customized draining schedule with up to six events per day Only appears for SKVF R models Request None None ResetAlarms Drain ResetServCnt ResetWtrServCnt Filling Perform one of the following actions for the evaporative cooler reset warning alarms initiate a drain cycle reset service counters for the unit reset service counters for the 5μm pre filter and silver ion cartridges ...

Page 35: ...even when a service alarm is active StartupLineRinse Off Off On Select whether to perform an automatic pipe line rinse cycle upon each start up of the evaporative cooler Only appears for SKVF R models RunWhileServiceAlarm Allowed Not Allowed Allowed Select whether to enable the unit to continue operating even when it is due for servicing When set to Allowed the unit will continue operating even wh...

Page 36: ...ption only applicable for models connected to BACnet or Modbus StptSrc None None Internal ControlInput Select the supply high limit humidity demand setpoint source TempSupplyHLLoop 6 Only appears if ModHLProfile is set to an internal cool mode or HighLimitSrc is set to SupplyTempDemand PropGain 28 5 min 1 0 max 200 0 Set the value of the supply high limit temperature demand proportional gain ITime...

Page 37: ...alType 0 10Vdc 0 10Vdc 2 10Vdc 4 20mA 0 20mA Select the signal type for the humidity demand control analog input RoomRH 6 Only appears if ControlProfile is set to an InternHumAnalog or DemandSrc is set to HumRoomDemand Signal 0 000V min 0 000V max 15 000V Displays the value of the room humidity analog input signal RoomRH 0 0 min 0 0 max 100 0 Displays the actual value of the room humidity analog i...

Page 38: ...ply high limit temperature analog input Bias 0 00 F 0 00 C min 18 00 F max 18 00 F min 10 00 C max 10 00 C Units C F Set the bias value for the supply high limit temperature analog input SignalType 0 10Vdc 0 10Vdc 2 10Vdc 4 20mA 0 20mA Select the signal type for the supply high limit temperature analog input FloatSig 0 000V min 0 000V max 10 000V Displays the value of the float sensor signal Only ...

Page 39: ... Only appears for SKVF R models WtrServiceInterval 1000hr min 1000hr max 3000hr Set the time of operation before the 5μm pre filter and silver ion cartridges call for replacement WtrSupDutyCycle 10 min 8 max 70 Set the percentage of time that the water supply valve will stay on during the water supply period defined by WtrSupPeriod Only appears for SKVF D models WtrSupPeriod 60sec min 0sec max 180...

Page 40: ...m of units for the BACnet server BACnetMSTP 10 Only appears if NtwrkOption is set to BACnet MaxMaster 127 min 1 max 127 Configure MaxMaster value to increase network efficiency when there are less than 127 devices on the network For optimal efficiency set value to the highest MAC address in the MS TP network MaxInfoFrames 1 min 1 max 100 Configure the maximum number of information messages the con...

Page 41: ... Port value must be set to 587 and Username and Password settings must be filled out If turned to Off the default socket will be used use Port 25 to use server without login account or Port 587 if login details for email account have been entered Port 25 25 587 If set to 25 server to server email transfer is enabled can only be used if SSL is set to Off If set to 587 client to server email transfe...

Page 42: ... in order to allow recent parameter modifications to be effective StaticAddress 192 168 1 100 Configure the static IP address StaticSubnetMask 255 255 255 0 Configure the static subnet mask StaticDefaultGateway 192 168 0 100 Configure the static default gateway StaticDnsServer 192 168 10 50 Configure the static DNS server ActualAddress Current value Displays the actual IP address ActualSubnetMask ...

Page 43: ...nality of the USB device and replace if defective Automatic DrainTimeout Indicates that the water in the tank has not drained within the programmed delay Verify and remove any obstructions in the drain piping and ensure that the piping is not clogged Only applicable for SKVF R models Manual FillTimeout Indicates that the desired water level has not been reached within the programmed delay Verify a...

Page 44: ...on check that the drain connections are connected to the main drain line with sufficient diameter Ensure that there are no apparent leaks 7 Confirm that the main and pan drains are separated and connected to an open drain and that the piping is properly connected with a slope of at least 10 Controls 8 Ensure that the Airflow switch is properly installed and connected to the printed circuit board I...

Page 45: ...ile the unit is in operation for several minutes observe the system for water leaks Water Conductivity 2 When the tank is full of water measure the water conductivity and ensure that it lies between 100 and 550 μS cm at 68 F 20 C Safety Test 3 While maintaining a demand from the system manually open the safety contacts and ensure that the SKVF automatically stops operation 4 Close the safety conta...

Page 46: ...nsure proper functionality Verification List Perform the following activities regularly to ensure optimal performance and operation of the evaporative cooler Ensure that all electrical connections are secure Check drain operation and flow Check for water leaks Check for stagnant water or excessive water in floor pan Remove the media cassette s see Removing the Evaporative Media section on page 47 ...

Page 47: ... detailed advice on control measures Apply disinfection measures based on the results of visual inspection and microbiological tests Record and evaluate the results obtained during verifications servicing and microbiological testing in order to improve the control plan If the SKVF is stopped for extended periods over 24 hours make sure the tank at the bottom of the unit and the water supply hose t...

Page 48: ... Media Removal 1 Using a screw driver remove the 4 screws in each corner of the media cassette bracket and remove the two brackets 2 Carefully remove the evaporative media from the cassette 3 Clean the evaporative media properly by following the steps outlined in the Disinfection section on page 48 4 To reinstall the evaporative media after servicing slide it back into the media cassette and re at...

Page 49: ...n of the evaporative cooler in the following situations At initial commissioning Depending on the results of the microbiological water testing and monitoring plan and sampling adopted see Table 11 on page 46 If the system or part of it has been shutdown and or substantially altered creating a risk of contamination During or following an outbreak or suspected outbreak of Legionellosis When disinfec...

Page 50: ... the Removing the Evaporative Media section on page 47 Step 3 Prepare the De scaling Solution CAUTION Risk of emanation of gas irritants ensure to perform these tasks in a well ventilated area It is recommended to perform the following steps outside Mix the de scaling solution according to the manufacturer s recommendations Use a clean container of a suitable size to completely immerse the media c...

Page 51: ...the bracket assembly and visually inspect it If the filter needs to be replaced ensure to replace it with a new filter having the same MERV13 rating and size Note MERV filters cannot be cleaned If dirty the filter must be replaced with a new one Note Ensure to dispose of old filters as contaminated waste 4 Vacuum and wipe around the filter area and the surrounding equipment If using a new filter f...

Page 52: ...cooler 8 Remove the three screws located on the control panel Remove these screws to open Illustration 25 Control Panel 9 Locate the PCB and remove the fuse cover from the PCB fuse Illustration 26 PCB Fuse 10 Remove the old fuse carefully and replace it with a new fuse part number NP092050019 CAUTION Risk of fire Replace only with an identical 4A 250V fuse NP092050019 Contact factory for more deta...

Page 53: ...cooler does not stop draining Only for SKVF R models Evaporative cooler is being filled with water but has not yet reached or does not reach the high limit Verify that the drain valve is closed Check if the shutoff valve on the water supply line is open Verify the operation of the fill valve Check that the fill valve strainer and the external strainer are not blocked Evaporative cooler is not bein...

Page 54: ...ty or temperature otherwise setup the system demand accordingly There is not enough water in the tank Check that the water level in the tank is sufficient and that the fill pipe connections are not being obstructed Evaporative cooler is operating and the Status Display LED is Red ServiceDue setting displays On The evaporative cooler is due for servicing Service the evaporative cooler see Servicing...

Page 55: ...Notes ...

Page 56: ...au blvd Montreal Qc H4N 1R6 Canada www neptronic com Toll free in North America 1 800 361 2308 Tel 514 333 1433 Fax 514 333 3163 Customer service fax 514 333 1091 Monday to Friday 8 00am to 5 00pm Eastern time ...

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