Neptronic SKVF Series Manual

SKVF-ESL-211022
Evaporative Cooler
SKVF Series
Installation Instructions and User Manual
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SKVF Evaporative Cooler
Installation Instructions and User Manual
www.neptronic.com
Page | 1
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.
Our products are designed and manufactured by over 250 dedicated employees in our 7,500 m2(80,000 ft2) state-of-the-
art facility located in Montreal, Canada. Using a vertical integration model, our entire manufacturing chain is under one
roof from software and hardware development to SMT circuit board assembly, to sheet metal fabrication, to product testing
ensuring that our products are engineered to last.
We currently hold several national and international patents and with our continued commitment to research and
development, we provide innovative products and technologies for the ever-evolving challenges of the HVAC industry.
Exporting over 75% of our sales, we have an exclusive distribution network around the globe that provides comprehensive
solutions to our worldwide customers.
About 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 application of these instructions does not ensure, at any time conformity to procedures, regulation or local
codes, regarding electric installation and connection to local water supply.
This product has been declared to conform to the applicable Canadian and American safety standards and directives and
bear the ETL (c) & (us) mark. The Certificate of Conformity for ETL is available, upon request with the manufacturer.
This product has been declared to conform to applicable European safety and electromagnetic compatibility standards
and directives and bear the CE mark. The certificate of conformity CE is available upon request to the manufacturer.
2021©: All rights reserved. This document cannot be reproduced totally or partially by any means whether, electronic,
mechanical, photocopy, recording or other, without prior written authorization of Neptronic.
General Warranty
This product is subject to the terms and conditions described at www.neptronic.com/Sales-Conditions.aspx

SKVF Evaporative Cooler
Installation Instructions and User Manual
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Page | 2
Health and Safety Instructions
General
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.
Electrical Warning Message
WARNING:
Risk of electric shock. Do not access. Disconnect the SKVF prior to opening the access door.
All work concerned with electrical installation MUST only be performed by skilled and qualified technical personnel such as
an electrician or a technician with appropriate training. The customer is always responsible for ensuring the suitability of
the technical personnel.
Please observe local regulations concerning the provision of electrical installations.
Health & Safety
Installation, maintenance, repair work or de-commissioning must only be carried out by appropriately qualified and
properly trained technical personnel. Any risks or hazards relating to the system, including 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
customer’s responsibility to ensure their suitability. Failure to use properly trained personnel may lead
to a hazardous operating condition.
WARNING: Danger of electrocution! Danger of contact with live parts when the unit is open. Always
isolate all water and electrical supplies to the system before commencing any maintenance or repair.
Isolate power and water immediately if there are any sign of water leaking from the unit.
WARNING: This appliance is not intended for use by persons (including children) with reduced
physical, sensory or mental capabilities, or lack of experience and knowledge, unless they have been
given supervision or instruction concerning use of the appliance by a person responsible for their
safety. Children must be supervised to ensure that they do not play with the appliance.
Protective Equipment
Please refer to the Health and Safety Executive for recommendations with regard to Personal Protective Equipment and
for information on the Control of Substances Hazardous to Health COSHH.

SKVF Evaporative Cooler
Installation Instructions and User Manual
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Hygiene
IMPORTANT:
Refer to local Health and Safety regulation and codes on the control of Legionellosis in water systems. In the absence of
such, ASHREA guideline 12-2000 does provide recommendations.
If not adequately maintained, water systems can support the growth of micro-organisms including the bacterium that
causes Legionnaires’ disease.
The SKVF has been designed to reduce as much as possible any possible risk of legionellosis growth. Users also share
the responsibility in reducing the risk of legionellosis; users are required to:
•Conduct a risk assessment of the complete water system.
•Implement proper control of the water system.
•Connect to a clean and chlorinated water supply main.
•Avoid stagnant water.
•Avoid water temperatures that increase risk of Legionella growth.
•Clean and disinfect the system 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 storage tanks and pipe-work supplying the unit are drained, unless they
supply other systems which ensure a regular renewal of water in the system. Failure to do so may
result in stagnation of the water and contamination that might cause Legionnaires' disease, which
can be fatal.
It is the responsibility of the person on whom the statutory responsibility falls to determine all control and preventative
measures outlined in this manual.
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.

SKVF Evaporative Cooler
Installation Instructions and User Manual
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Page | 4
Handling and Packaging
Handling
Always handle the SKVF evaporative cooler with care and keep within its original packaging for as long as possible, prior
to installation. It must be stored under cover and protected from any possible damage, from dust, rain or frost.
Correct Lifting Method
Lifting or handling must only be carried out by trained and qualified personnel. Ensure that the lifting operation has been
properly planned, risk assessed and that all equipment has been checked by a skilled and competent Health & 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 may be carried using a forklift from the underside. Exercise caution
before lifting to ensure that the load is balanced.
Refer to dimensions and weights as indicated on page 9.
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.

SKVF Evaporative Cooler
Installation Instructions and User Manual
www.neptronic.com
Page | 5
Table of Contents
Overview.....................................................................................................................................................................6
Visual Overview......................................................................................................................................................6
Nomenclature.........................................................................................................................................................7
Available Options....................................................................................................................................................7
Technical Specifications.........................................................................................................................................7
Output Specifications .............................................................................................................................................8
Dimensions and Weight .........................................................................................................................................9
Mechanical Installation.............................................................................................................................................11
General Recommendations..................................................................................................................................11
Floor Installation...................................................................................................................................................12
Ceiling Installation ................................................................................................................................................12
Air Filter Installation (Option)................................................................................................................................13
Plumbing Connections .............................................................................................................................................14
Water Quality Guide.............................................................................................................................................14
Reverse Osmosis Water ..................................................................................................................................14
Controlled Substances .....................................................................................................................................14
Water 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 - Integration ............................................................................................................................................39
List of Alarms........................................................................................................................................................42
Start-up Procedure...................................................................................................................................................43
Servicing and Maintenance......................................................................................................................................45
Preventative Maintenance....................................................................................................................................45
Water Sampling and Testing (Hygiene) ...............................................................................................................46
Removing the Evaporative Media ........................................................................................................................47
Disinfection...........................................................................................................................................................48
De-scaling.............................................................................................................................................................49
Air Filter Maintenance ..........................................................................................................................................50
PCB Fuse Replacement.......................................................................................................................................51
Troubleshooting........................................................................................................................................................52

SKVF Evaporative Cooler
Installation Instructions and User Manual
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Page | 6
Overview
Visual Overview
ECM fan
Control panel
Stainless steel 304L
media cassette
Evaporative media
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
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-x60 Models
Illustration 1 - Overview of SKVF Evaporative Cooler

SKVF Evaporative Cooler
Installation Instructions and User Manual
www.neptronic.com
Page | 7
Nomenclature
SKVF
-
R
60
-
85
B
C
S
Type:
R= Recirculation
D= Direct Feed
CFM*:
15 = 1500 CFM
30 = 3000 CFM
60 = 6000 CFM
Evaporation Factor†:
85 = 85%
Fan Position:
B= Back
L= Left
R= Right
Voltage§:
A= 120Vac/1ph
B= 208Vac/1ph
C= 230-240Vac/1ph
Control Panel:
S= Standard
* 120Vac/1ph models operate at 80% of maximum capacity and therefore output 80% of the nominal CFM.
†Option of 65 or 75% evaporation factor is also available upon request to 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
Model
Frequency
(Hz)
Rated voltage
(V)
Rated power
(W)
Rated current
(A)
Max air flow
(CFM) [m3/h]
SKVF-x15
50/60
120
364
3.0
1250 (2124)
208
364
1.8
1500 (2549)
240
364
1.5
SKVF-x30
50/60
120
700
5.8
2500 (4248)
208
700
3.4
3000 (5097)
240
700
2.9
SKVF-x60
50/60
120
1300
10.8
5000 (8495)
208
1300
6.3
6000 (10194)
240
1300
5.4

SKVF Evaporative Cooler
Installation Instructions and User Manual
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Output Specifications
Table 2 - Output Specifications (120V 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)
kBTU/h
(kW)
lbs/h
(kg/h)
kBTU/h
(kW)
lbs/h
(kg/h)
kBTU/h
(kW)
1250
(2124)
26.5
(12)
28.2
(8.3)
22.7
(10.3)
24.1
(7.1)
19.3
(8.8)
20.4
(6)
15.9
(7.2)
16.8
(4.7)
2500
(4248)
52.9
(24)
56.3
(16.5)
45.3
(20.5)
48.2
(14.1)
38.5
(17.5)
40.9
(12)
31.8
(14.4)
33.8
(9.3)
5000
(8495)
104.9
(47.6)
112.6
(33)
90.6
(41.1)
96.3
(28.2)
77.1
(35)
81.8
(24)
63.6
(28.8)
67.4
(18.6)
Leaving condition:
78%RH
52°F
(11°C)
82%RH
54°F
(12°C)
85%RH
57°F
(14°C)
88%RH
60°F
(16°C)
85°F (29°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)
kBTU/h
(kW)
lbs/h
(kg/h)
kBTU/h
(kW)
lbs/h
(kg/h)
kBTU/h
(kW)
1250
(2124)
32.3
(14.7)
34.2
(10)
27.2
(12.3)
28.8
(8.4)
22.9
(10.4)
24.2
(7.1)
18.8
(8.5)
19.8
(5.8)
2500
(4248)
64.5
(29.3)
68.3
(20)
54.3
(24.6)
57.5
(16.9)
45.8
(20.8)
48.4
(14.2)
37.4
(17)
39.4
(11.5)
5000
(8495)
128.9
(58.5)
136.7
(40.1)
108.7
(49.3)
115
(33.7)
91.7
(41.6)
96.8
(28.4)
74.8
(33.9)
78.9
(23.1)
Leaving condition:
76%RH
60°F
(16°C)
80%RH
64°F
(18°C)
85%RH
67°F
(19°C)
87%RH
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)
kBTU/h
(kW)
lbs/h
(kg/h)
kBTU/h
(kW)
lbs/h
(kg/h)
kBTU/h
(kW)
1500
(2549)
31.8
(14.4)
33.8
(9.9)
27.2
(12.3)
28.9
(8.5)
23.1
(10.5)
24.5
(7.2)
19.1
(8.7)
20.2
(5.9)
3000
(5097)
63.5
(28.8)
67.6
(19.8)
54.4
(24.7)
57.8
(16.9)
46.2
(21)
49.1
(14.4)
38.2
(17.3)
40.5
(11.9)
6000
(10194)
125.9
(57.6)
135.1
(39.6)
108.7
(49.3)
115.5
(33.8)
92.5
(42)
98.1
(28.8)
76.3
(34.6)
80.9
(23.7)
Leaving condition:
78%RH
52°F
(11°C)
82%RH
54°F
(12°C)
85%RH
57°F
(14°C)
88%RH
60°F
(16°C)
85°F (29°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)
kBTU/h
(kW)
lbs/h
(kg/h)
kBTU/h
(kW)
lbs/h
(kg/h)
kBTU/h
(kW)
1500
(2549)
38.7
(17.6)
41
(12)
32.6
(14.8)
34.5
(10.1)
27.5
(12.5)
29
(8.5)
22.5
(10.2)
23.7
(6.9)
3000
(5097)
77.4
(44.6)
82
(24)
65.2
(29.6)
69
(20.2)
55
(24.9)
58.1
(17)
44.9
(20.4)
47.3
(13.9)
6000
(10194)
154.7
(70.2)
164
(48.1)
130.5
(59.2)
138
(40.4)
110
(49.9)
116.2
(34)
89.8
(40.7)
94.7
(27.8)
Leaving condition:
76%RH
60°F
(16°C)
80%RH
64°F
(18°C)
85%RH
67°F
(19°C)
87%RH
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.

SKVF Evaporative Cooler
Installation Instructions and User Manual
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Page | 9
Dimensions and Weight
SKVF-x15 to x30 Models
A
B
1.2"
(30mm)
3.25" (83mm)
C D
Illustration 2 - Dimensions (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)