neptronic SKV Series Evaporative Cooling Humidifier User Manual

May 16, 2024
neptronic

SKV Series Evaporative Cooling Humidifier

Specifications

  • Product Name: Evaporative Humidifier SKV Series
  • Model Number: 4011008
  • Manufacturer: Neptronic
  • Country of Origin: Canada

Product Information

The SKV Evaporative Humidifier from Neptronic is designed to
provide efficient humidification for HVAC systems. With a focus on
quality and innovation, Neptronic has been a leading manufacturer
in the industry since 1976. The humidifier is designed to meet
safety standards and directives in both Canada and the United
States.

Installation Instructions

  1. Read the manual thoroughly before installation.

  2. Ensure that the humidifier is disconnected from the power
    source before opening the access door.

  3. Installation should be carried out by skilled and qualified
    technical personnel.

  4. Adhere to all local regulations regarding electrical
    installations and water supply connections.

Operation Instructions

  1. After installation, ensure the humidifier is properly connected
    to the power source and water supply.

  2. Regularly check and maintain the humidifier according to the
    maintenance schedule provided in the manual.

  3. Monitor the humidity levels in the environment and adjust the
    settings on the humidifier as needed.

  4. If any issues arise during operation, contact Neptronic for
    assistance.

Health and Safety Instructions

The manual contains important safety information to ensure the
correct and safe operation of the SKV Evaporative Humidifier. It is
essential to follow all safety guidelines provided in the manual to
prevent accidents or damage.

FAQ

Q: What should I do if the humidifier is not producing enough

moisture?

A: Check the water supply to ensure it is connected and flowing
correctly. You may also need to clean the unit’s filters or replace
them if they are clogged.

Q: How often should I clean the humidifier?

A: It is recommended to clean the humidifier at least once a
month to prevent buildup of mold or bacteria. Refer to the manual
for specific cleaning instructions.

Evaporative Humidifier SKV Series
4011008
Installation Instructions and User Manual
Read and save this manual
SKV-ESL-231215

SKV Evaporative 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.

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 85% 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 SKV evaporative humidifier.
· 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.
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.

Warranty

This product is covered by the Neptronic General Conditions of Sale and Warranty. For more detailed information,

visit www.neptronic.com/Sales-Conditions.aspx.

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U

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SKV Evaporative Humidifier
Installation Instructions and User Manual

Health and Safety Instructions

General
This manual has been written to ensure correct, safe and sustainable operation of the SKV Evaporative humidifier 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 a SKV. Please retain for reference and contact Neptronic for any questions.

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The triangular symbol with the word WARNING: is used to designate danger of severe or lethal consequence.

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The circular symbol with the word CAUTION: is used to designate danger of injury, or to warn of hazardous operating condition.

Electrical Warning Message

WARNING:
Risk of electric shock. Do not access. Disconnect SKV 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 is any sign of water leaking from the unit.

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.

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SKV Evaporative Humidifier
Installation Instructions and User Manual

Hygiene
IMPORTANT:
Refer to local Health and Safety regulation and codes on the control of Legionellosis in water systems. In the absence of such, ASHRAE 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. SKV 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 SKV 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. SKV evaporative humidifier must be

!

installed, operated and serviced in accordance with this Installation Instructions and User Manual.

WARNING: In the event that the SKV 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

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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 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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SKV Evaporative Humidifier
Installation Instructions and User Manual
Table of Contents
Overview …………………………………………………………………………………………………………………………………………………6 Operation …………………………………………………………………………………………………………………………………………….6 Benefits ……………………………………………………………………………………………………………………………………………….7 Features ……………………………………………………………………………………………………………………………………………… 7 Nomenclature ………………………………………………………………………………………………………………………………………7 Specifications ………………………………………………………………………………………………………………………………………. 8 Dimensions and Weights ……………………………………………………………………………………………………………………….8 Water Quality Guide ……………………………………………………………………………………………………………………………..9 Reverse Osmosis ……………………………………………………………………………………………………………………………..9 Other Water Supplies ………………………………………………………………………………………………………………………..9 Controlled Substances …………………………………………………………………………………………………………………….10 Water Monitoring …………………………………………………………………………………………………………………………….10
Handling and Packaging………………………………………………………………………………………………………………………….11 Handling ……………………………………………………………………………………………………………………………………………. 11 Correct Lifting Method …………………………………………………………………………………………………………………………11 Inspection ………………………………………………………………………………………………………………………………………….11 Unpacking ………………………………………………………………………………………………………………………………………….11
Installation Overview……………………………………………………………………………………………………………………………….12 List of Supplied Accessories…………………………………………………………………………………………………………………12
Installation Method Statement ………………………………………………………………………………………………………………….13 Stage 1 ­ On Site Assembly of Evaporation Module ……………………………………………………………………………….14 Evaporation Module Assembly Steps…………………………………………………………………………………………………15 Droplet Separator Assembly……………………………………………………………………………………………………………..16 Stage 2 ­ Evaporation Module Positioning and Mounting ………………………………………………………………………..18 General Considerations ……………………………………………………………………………………………………………………18 Positioning the Evaporation Module …………………………………………………………………………………………………..18 Stage 3 ­ Water Supply Installation ………………………………………………………………………………………………………20 Stage 4 ­ Drain and Overflow Connections ……………………………………………………………………………………………21 Stage 5 ­ Power Supply Connections ……………………………………………………………………………………………………22 Mounting of the SKV Controller & Power Relay box …………………………………………………………………………….23 Stage 6 ­ Electrical Control Connections ……………………………………………………………………………………………….24 Safety Contact Connections ……………………………………………………………………………………………………………..24 On/Off Operation …………………………………………………………………………………………………………………………….25 Modulating Operation ………………………………………………………………………………………………………………………25 Stage 7 ­ SKV Controller Installation and Configuration…………………………………………………………………………..26 Menu Overview……………………………………………………………………………………………………………………………….26 Main Menu Configuration …………………………………………………………………………………………………………………27 Main Menu – Controls ………………………………………………………………………………………………………………………28 Main Menu – System Setup ………………………………………………………………………………………………………………29 Main Menu – Diagnostics ………………………………………………………………………………………………………………….30 Main Menu – Installer ……………………………………………………………………………………………………………………….32 Firmware Update …………………………………………………………………………………………………………………………….33 Alarms …………………………………………………………………………………………………………………………………………… 34
Servicing and Maintenance ……………………………………………………………………………………………………………………..37 Preventative Maintenance ……………………………………………………………………………………………………………………37 Verification List ……………………………………………………………………………………………………………………………….37

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SKV Evaporative Humidifier
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Water Sampling and Testing (Hygiene)………………………………………………………………………………………………37 Disinfection …………………………………………………………………………………………………………………………………….38 De-scaling ………………………………………………………………………………………………………………………………………39 Troubleshooting ……………………………………………………………………………………………………………………………………..41 Water Leakage from the tank ……………………………………………………………………………………………………………….41 Water Carries Over Into Air Stream……………………………………………………………………………………………………….41 Loss of Performance……………………………………………………………………………………………………………………………41 Scale Build Up On the Surface of the Media …………………………………………………………………………………………..41 Module Pump is Not Functioning…………………………………………………………………………………………………………..41 Exploded View and Parts List…………………………………………………………………………………………………………………..42 Evaporative Humidifier…………………………………………………………………………………………………………………………42 Media Panels ……………………………………………………………………………………………………………………………………..43 Recommended Spares List ………………………………………………………………………………………………………………….45 Notes ……………………………………………………………………………………………………………………………………………………46
List of Illustrations
Illustration 1 – Evaporative Media ……………………………………………………………………………………………………………….6 Illustration 2 – Humidifier Overview ……………………………………………………………………………………………………………..6 Illustration 3 – Dimensions and Weights ………………………………………………………………………………………………………8 Illustration 4 – Installation Stages…………………………………………………………………………………………………………….. 13 Illustration 5 – Evaporation Module Assembly …………………………………………………………………………………………… 14 Illustration 6 – Media Droplet Separating Support Assembly ……………………………………………………………………….. 16 Illustration 7 – Upper Side Separator Assembly ………………………………………………………………………………………… 16 Illustration 8 – Lower Side Separator Assembly ………………………………………………………………………………………… 17 Illustration 9 – Positioning and Mounting ………………………………………………………………………………………………….. 19 Illustration 10 – Water Supply Installation …………………………………………………………………………………………………. 20 Illustration 11 – Drain and Overflow Connections ………………………………………………………………………………………. 21 Illustration 12 – Power Supply Connections………………………………………………………………………………………………. 22 Illustration 13 – Mounting the Controller & Power Relay box……………………………………………………………………….. 23 Illustration 14 – SKV Controller Wiring Diagram ………………………………………………………………………………………… 24 Illustration 15 – Exploded View ………………………………………………………………………………………………………………. 42
List of Tables
Table 1 – Nomenclature …………………………………………………………………………………………………………………………….7 Table 2 – Water Supply and Drain Connection Specifications…………………………………………………………………………8 Table 3 – Evaporation Module Specifications ……………………………………………………………………………………………….8 Table 4 – P Trap Installation …………………………………………………………………………………………………………………… 21 Table 5 – Water Drain and Overflow Specifications……………………………………………………………………………………. 21 Table 6 – Power Supply Specifications …………………………………………………………………………………………………….. 23 Table 7 – Passwords ……………………………………………………………………………………………………………………………… 27 Table 8 – Water Dilution (Interval and Number of Cycles)…………………………………………………………………………… 33 Table 9 – Proposed Plan of Control and Disinfection According to Results of Microbiological Testing of Water…. 38 Table 10 – Evaporative Humidifier Part Numbers ………………………………………………………………………………………. 42 Table 11 – Media Panel Numbers ……………………………………………………………………………………………………………. 45 Table 12 – Spare Parts Replacement ………………………………………………………………………………………………………. 45

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SKV Evaporative Humidifier
Installation Instructions and User Manual

Overview

Operation
The humidifier consists of an Evaporative Module that is installed in an air handling unit (AHU) or a duct. Water enters the evaporation module from the main water supply and reaches the top of the unit. The water distribution system disperses water over the Evaporative Module like a waterfall. Warm dry air passes through the wet media, evaporates water, and raises the humidity level. The SKV also offers up to 21.5°F (12°C) of cooling as a result of the transfer of energy when the water evaporates.
In order to prevent any possible carry over, an optional droplet separator can be added at any time during the life of the SKV. Neptronic does recommend the use of droplet separator when air velocity is above 700FPM (3.6m/s).
Any particle or contamination present in the air flow can accumulate and clog the media. For this reason, Neptronic recommends proper air filtration, typically and at least 5 microns (EU5). On some critical applications, such as medical sites or laboratories, a finer filtration might be required.

Water

95% 85% 75% 65%

Warm & Dry Air

Cooled & Humidified Air

Evaporative media

Droplet separator

Illustration 1 – Evaporative Media

Water distribution drawers Media panel
(4 efficiencies)
Recirculating pump Bottom tank
Electrical junction box Drain pump

Minimal blanking plates (optional) Up to 5 stages

SKV Controller (1 per system)
1 cable 6 wires (by others)
SKV Power Relay box (1 per module) 1 power cable & 1 control cable (supplied) Water inlet
Pre filter + Siver ions anti bacterial cartridge Drain P Trap

Illustration 2 – Humidifier Overview

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SKV Evaporative Humidifier
Installation Instructions and User Manual

Benefits

· Very low energy consumption (< 1kW) · Free cooling up to 21.5°F (12°C) · Hygienic operation · Custom modular design to fit exact dimensions of AHU or duct ensures minimal use of blanking
plates, which obstruct air passage and increase pressure drop through the evaporation module · Environmentally friendly · Low pressure drop · Simple and low maintenance. Easy access to water distribution on top, no tools required to remove
media panels, one screw to remove pump skid · Fast and efficient drain pump with the ability to lift the drain water when no slope is possible for the
drain water pipe · All parts in contact with water are made of stainless steel and designed for life · Uses Reverse Osmosis (RO) or tap water
Features

· Custom designed with Humidisoft to meet your specific duct/application dimensions · Energy transfer during water evaporation results in free cooling up to 21.5°F (12°C) · Low energy (< 1 kW) consumption ensuring an environmentally friendly application · Four evaporation factors: 65%, 75%, 85% and 95% · Inorganic and inflammable material (UL900 Class 1) · Minimum blanking plates resulting in lower pressure drop · 5 microns pre-filter and silver ion dosing cartridges prevent microbial growth · Staging valves: up to 5 for flexible and accurate control · Includes SKV electronic controller
o Microprocessor based, field configurable controller o BACnet communication (optional) o On/Off or modulating control type o Master/slave configuration for up to 4 Evaporative Modules o Easy connection with only one 6-wire control cable o User-friendly, menu-driven LCD (128 x 64) o Real-time clock and SD card for scheduler, trending and history log o Firmware upgrade via SD card o Stainless steel controller enclosure rated IP56 for outdoor installations
Nomenclature

Table 1 – Nomenclature

SKV

R
Type: R = Recirculation D = Direct Feed O = OEM

95
Evaporation Factor: 65 = 65% 75 = 75% 85 = 85% 95 = 95%

C
Controller: C = Standard Controller B = BACnet Controller _ = None

1
No. of Stages: 1 = 1 Stage 2 = 2 Stages 3 = 3 Stages 4 = 4 Stages 5 = 5 Stages

D
Droplet: D = Droplet separator _ = Not included

C
Voltage: A = 120Vac C = 230Vac

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SKV Evaporative Humidifier
Installation Instructions and User Manual

Specifications

Table 2 – Water Supply and Drain Connection Specifications

Specification Water Supply Size Maximum Water Supply Pressure Maximum Water Supply Temperature Drain Pump Inlet Size
Overflow Outlet Size

Description

Ø3/4″ (20mm) garden hose, male

70 PSI (4.8bar)

68°F (20°C)

Ø3/4″ (20mm)

Tank size less than 94″ (239cm): Tank size greater than 94″ (239cm):

Ø1.5″ (3.8cm) Ø2.0″ (5.1cm)

Table 3 – Evaporation Module Specifications

Specification Evaporation Module Frame Material Evaporation Media ­ Material
Evaporation Media ­ Fire Rating
Evaporation Media ­ Hygiene Evaluation

Description Stainless Steel Grade 304 Glass fibre material bonded with a special inorganic compound European Fire rating: (EN13501-1 & EN13238): Euro class A2, s2, d0 North America Fire rating: UL900 class 1 EN ISO 846, VDI6022 Part I, suitable for use in HVAC-systems (by ILH Berlin)

Dimensions and Weights

B

C

A

Illustration 3 – Dimensions and Weights
Evaporative Module dimensions are calculated and customized to the actual size of the duct dimension using Humidisoft. Please refer to drawing attached and referenced with the Humidisoft project number for dimensions and weights for your SKV.

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SKV Evaporative Humidifier
Installation Instructions and User Manual

Water Quality Guide

For normal operation of the SKV evaporative humidifier, Neptronic recommends connecting the SKV to a clean and potable source of water supply. Reverse osmosis (RO) water may be used for areas using hard water in order to minimise scale build-up.

Reverse Osmosis Water

For SKV humidifiers using RO water, Neptronic recommends operating the system within the following parameters:

SKV Type

Conductivity

Type R: Recirculation pump Type D: Direct feed

100 S/cm at 20°C (68°F) > 150 S/cm at 20°C (68°F)

The use of 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.

Other Water Supplies

High-quality, treated effluent for non-potable applications may possibly be used. The following provides details on other water qualities that may be acceptable for use with SKV humidifiers. Effluent water must be treated by an appropriate water treatment method and risk assessed to ensure it is safe and suitable for use in the SKV Module. It is the responsibility of the user to ensure that the water supply is included as part of a properly managed and hygiene monitored water system, has been correctly risk assessed and that it complies with local codes and regulations. The examples below may be reffered to for water conditions that would allow an SKV Module to operate within its specification:

Parameter Ammonium Calcium Hardness (as CaCO3) Chloride Coliform bacteria Colony count 22°C Conductivity Copper
Iron
Legionella bacteria Manganese Odour Oil and grease pH Pseudomonas species Silica (as SiO) Sulphate Temperature Total Alkalinity (as CaCO3) Total Dissolved solids (TDS) Turbidity

Supply Water < 0.50 mg/l 50-150 ppm < 50 mg/l < 10 cfu/100 ml < 1000 cfu/ml 100-550 S/cm at 20°C < 1 mg/l
< 0.2 mg/l
< 50 cfu/1000 ml < 0.1 mg/l Acceptable to users < 2 ppm 7 to 8.5 < 10 cfu/100 ml < 25 ppm < 250 mg/l < 20°C 50-150 mg/l < 550 pm < 5 NTU

Concern Odour passed to air Scale formation Corrosion of stainless steel Indicator of poor water quality Indicator of contaminated water supply Total hardness and scale formation Deposits and corrosion stimulation Deposit formation on oxidation and a critical support role in Legionella growth Risk of Legionella Deposit formation Smell passed to air Media fouling possibility Acid or Alkali damage to equipment Indicator of slime forming potential Scale formation No specific concerns Warm water favours growth of bacteria Alkali damage to equipment Mineral concentration No specific concerns

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SKV Evaporative Humidifier
Installation Instructions and User Manual

Controlled Substances

The supply water of the SKV 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 list of substances that must not be found in the SKV system.

Acrylamide Antimony Arsenic Benzene Benzo(a)pyrene Boron Bromate Cadmium

Chromium Clostridium perfringens (including spores) Cyanide 1,2-dichloroethane Epichlorohydrin Fluoride Lead

Nickel Mercury Pesticides Polycyclic aromatic hydrocarbons Selenium Tetrachloroethene and Trichloroethene Trihalomethanes Vinyl chloride

Water Monitoring

The water supply of the SKV humidifier must be monitored for hygiene as part of the maintenance program. Refer to the Servicing and Maintenance section for further guidance.

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SKV Evaporative Humidifier
Installation Instructions and User Manual

Handling and Packaging

Handling

Always handle the SKV Evaporative humidifier 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. Any personnel handling or lifting the SKV module must follow the Lifting Operations and Lifting Equipment Regulations 1998 and Approved Code of Practice L113. The regulation imposes

duties on employers and self-employed persons and persons who have control, to any extent of

lifting equipment.

Refer to dimensions and weights as indicated on the SKV nameplate as well as the submittal drawing for system dry weights.

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.

Unpacking

Upon customer request and following transit maximum size for large dimension SKV, evaporation media panels and evaporation module frames are delivered on a separate pallet. In this case, the evaporation module will have to be assembled on site.

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CAUTION. Risk of malfunction, evaporation media must not be cut or crushed during handling and installation.

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SKV Evaporative Humidifier
Installation Instructions and User Manual

Installation Overview

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WARNING: Failure to observe manufacturer’s installation recommendations will invalidate the manufacturer’s warranty.

Handling and Lifting
Lifting or handling MUST be carried out by trained and qualified personnel. Ensure that the lifting operation has been properly planned, assessed for risk and that the equipment has been checked by a competent Health & Safety representative, and effective control measures are in place.
It is the customer’s responsibility to ensure that the operators are trained in handling heavy goods and to enforce the relevant lifting regulations.
The SKV MUST always be handled and lifted with care and must remain in its original packaging for as long as possible prior to installation. The SKV package may be carried using a forklift from the underside. Caution must be exercised to ensure balanced load before lifting.
List of Supplied Accessories
· Water filter assembly, 5 microns pre-filter and silver ion dosing anti- bacterial cartridges. · Installation Instructions and User Manual

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SKV Evaporative Humidifier
Installation Instructions and User Manual

Installation Method Statement
Stage 1 ­ On Site Assembly of Evaporation Module Stage 2 ­ Evaporation Module Positioning and Mounting Stage 3 ­ Water Supply Installation Stage 4 ­ Drain and Overflow Connections Stage 5 ­ Power Supply Connections Stage 6 ­ Electrical Control Connections Stage 7 ­ SKV controller configuration
Stage 1 Assembly on site of evaporation module

Stage 6 Electrical control connections
Stage 7 SKV Controller configuration

Stage 2 Module positionning &
mounting

Illustration 4 – Installation Stages

Stage 5 Power supply connection
Stage 3 Water supply installation
Stage 4 Water drain & overflow connections

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SKV Evaporative Humidifier
Installation Instructions and User Manual

Stage 1 ­ On Site Assembly of Evaporation Module

On site assembly of the SKV evaporation module is necessary when its height and width are incompatible with maximum shipping dimensions.

!

CAUTION. Risk of injury. Some sheet metal parts might present sharp edges and some handling and assembly will require working with a ladder. We recommend wearing protective gloves and any

appropriate other protective equipment during handling and assembly of the SKV evaporation module.

We recommended installing the SKV evaporation module into a waterproof AHU or duct section. The SKV evaporation module is a self-contained humidifier/cooler; however, leaks might occur at the water and drain connection point.

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WARNING: Risk of malfunction. SKV evaporation module must be level in the 2 plan directions.

Bottom tank, main support beam and pump skid will usually be pre-assembled at the factory before delivery. However, the main support beam for the evaporative media panels as well as the pump skid can be easily removed and re-installed as indicated in steps 1 and 9. Tools required:
· Philips screwdriver size #2 & #3 · Wrench sizes 7/16” (11mm) and 5/16” (8mm) · Level

Step 4 Top frame
Step 2 Side frame sections (factory assembled if HW)
Step 3 Side frames (x2)
Step 1 Main support beam (factory assembled)

4C 3C 2C

1C 1B
1A

4B 3B 2B
4A 3A 2A

5C 6C
5B 6B 5A 6A

Step 8 Water distribution drawers Step 5 Media panels
Step 6 Panel link bracket (at least 1 per level) Step 7 Holding rail (1 per level)

Step 9 Pump skid assembly (factory assembled)

Step 11 Water distribution hoses
(1 per drawer)

Step 10 Drain manifold assembly (factory assembled)

Illustration 5 – Evaporation Module Assembly

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SKV Evaporative Humidifier
Installation Instructions and User Manual

Evaporation Module Assembly Steps
Step 1 (optional): Main Support Beam
The evaporation media panel’s main support beam is assembled at the factory. However, its position can be adjusted depending on the evaporative media panels’ depth. To do so, remove the screws’ protective caps and remove the Philips screws. Adjust, re-install the screws and re-insert the protective caps.
Step 2 (optional): Side Frame Sections
If the height of the evaporation module is greater than its width, assemble the side frame section along with the holding rail support. Install the four lock washers and nuts and then tighten using a 7/16” (11mm) wrench.
Step 3: Side Frames
Assemble the two side frames onto the bottom tank. Install the six lock washers and nuts on each side and then tighten using a 7/16” (11mm) wrench.
Step 4: Top Frame
Install the top frame onto the two side frames.
! CAUTION. This part can be very long and might require the help of two people to be safely installed.
Install the three lock washers and nuts on each side. Do not tighten the nuts, as a final adjustment of the assembly will be required after all the media panels and water distribution drawers are installed at steps 5 and 8.
Step 5: Media Panels
Install the media panels onto the evaporation module frame. It is recommended to install them row by row, and not column by column. Ensure that each media panel is properly installed onto the one below.
Note: For SKV evaporation modules equipped with the droplet separator option (air velocity above 700FPM [3.6m/s]), perform Steps A to C outlined in the Droplet Separator Assembly section below before proceeding to Step 6.
Step 6: Media Panel Link Bracket
Install at least one media panel link bracket per level. This bracket is designed to re-enforce the structure by holding together the media panel and holding rail. Loosen the top two Philips screws from adjacent media panel frames, insert the bracket, and then tighten the two Philips screws.
Step 7: Holding Rail
Install one holding rail per level. Insert the holding rail onto at least one link bracket and engage the latches into the holding rail supports on both sides.
Step 8: Water Distribution Drawers
Install the water distribution drawers onto the top frame (step 4) and adjust the top frame position to ensure proper sliding of the drawers. Confirm proper positioning of the top frame (step 4) and tighten the three nuts on each side.
Step 9 (optional): Pump Skid
The pump skid assembly is installed at the factory before shipping. If you need to remove it, first disconnect the electrical quick connector of the drain and then remove the Philips screw.
Step 10 (optional): Drain Manifold
The drain manifold assembly is installed at the factory before shipping. If you need to remove it, disconnect the drain hose from the bottom tank, and open the clamp maintaining the drain manifold assembly by removing the 5/16″ (8mm) nut. The drain manifold assembly can be directed either on the right- hand side (by default) or on the left-hand side of the bottom tank.
Step 11: Water Distribution Hoses
Install the water distribution hoses between the top drawers and the circulation pump manifold or solenoid valve outlets, by pushing each hose into the push-in connectors.

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SKV Evaporative Humidifier
Installation Instructions and User Manual
Droplet Separator Assembly
Step A: Media Droplet Separating Support
Install one media droplet separating support between each adjacent media panel on each level. This support is designed to re-enforce the structure and separate the media panel and droplet separator. Loosen the top two Philips screws from adjacent media panel frames, insert the support, and then tighten the two Philips screws.
Media Droplet Separating Support
Illustration 6 – Media Droplet Separating Support Assembly
Step B: Side Separator
Install an upper and lower side separator on each side of the evaporation module, onto the holding rail supports of the side frames which support both sides of the media panel and droplet separator assemblies.

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Illustration 7 – Upper Side Separator Assembly

Page | 16

SKV Evaporative Humidifier
Installation Instructions and User Manual
Illustration 8 – Lower Side Separator Assembly
Step C: Droplet Separator
Install the droplet separators onto the evaporation module frame. It is recommended to install them row by row, and not column by column. Ensure that each droplet separator is properly installed onto the one below.

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Page | 17

SKV Evaporative Humidifier
Installation Instructions and User Manual
Stage 2 ­ Evaporation Module Positioning and Mounting
General Considerations
Consider the following points before deciding the location for the SKV distribution system:
· Plan a location that is easy to access and permits an easy inspection and servicing of the SKV. · Do not install the SKV where failure of the appliance could cause damage to the building structure or
to other expensive equipment. · Verify that the construction of the duct, plenum or AHU wall is suitable to support the maximum
weight when the evaporation module is wet. If the duct, plenum or AHU structure is not sufficient re-enforcement must be installed. · We recommend installing the SKV evaporation module into a waterproof AHU or duct section. The SKV evaporation module is a self-contained humidifier; however, leaks might occur at the water and drain connection points. Install a drain outlet connection at its lowest point within humidification section. · Construct the drain pipe in such a way that there is no water accumulation and stagnation. · Make provision either on one side or both sides of the AHU or duct for water supply, drain line(s), and electrical conduit to the evaporation module. · The SKV accepts the water supply, drain, overflow piping, and electrical connections from the righthand or left-hand side of the evaporation module.
Positioning the Evaporation Module
· Level the evaporation module properly in order to ensure proper distribution of water (see Illustration 6 – Positioning and Mounting). Make sure that the drain outlet is at the lowest point of the unit.
· The unit is custom made to fit the AHU or duct dimension; however, to allow easy installation and service a space of 2″ (51mm) on both sides and 2″ (51mm) on top of the evaporation must be planned. These spaces must be covered with blanking plates. o Do not leave any empty space around the evaporation module. In case there is some empty space, install blanking plates to prevent air passage. o These blanking plates are supplied in option by Neptronic, if supplied, follow the instructions sheet enclosed with the package; if not supplied, the blanking plates supplied by others must be properly secure and attached by means of metal screws or rivets.
· Provide a minimum access of 24″ (600mm) downstream of the evaporation module for installation, inspection, commissioning, and maintenance. Also provide the same clearance, 24″ (600mm) upstream, for easy commissioning and maintenance.
· Provide access to the sides of the unit through doors.

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Page | 18

SKV Evaporative Humidifier
Installation Instructions and User Manual
Adjustable bracket (x2) each side

Level in this direction

Attachment point (x4)

Level in this direction Illustration 9 – Positioning and Mounting

IMPORTANT: If evaporation module is installed in a duct or plenum, please take extra caution on the weight of the module full of water. Make sure that the duct is properly supported. Use the supplied brackets and hardware to attach the SKV evaporation module into the duct or plenum.
· 4 bolts (10-32) to attach the base of the evaporation module. · 2 adjustable brackets, 4 nuts (10-32) and 2 bolts (10-32) to attach the top of the evaporation module.
Mounting the Evaporation Module
· Secure the evaporation module to the AHU, duct or plenum by screws and bolts. · Attach the evaporation module in such a way that it will not vibrate or move under air velocity and
pressure. · Ensure that blanking plates are installed all around the module to avoid any empty space around the
evaporation module. o These blanking plates are supplied in option by Neptronic, if supplied, follow the instructions sheet enclosed with the package; if not supplied, the blanking plates supplied by others must be properly secured and attached by means of metal screws or rivets.

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Page | 19

SKV Evaporative Humidifier
Installation Instructions and User Manual
Stage 3 ­ Water Supply Installation

¾” (20mm) G connection

Piping (not supplied)
UV light (optional)

Water supply Shut off valve (not supplied)

Pre-filter 5µM

Water pre-treatment

Silver ion dosing cartridge cartridge (supplied)

To be installed outside of duct / AHU
Illustration 10 – Water Supply Installation
Note: Do not over tighten hose fittings as this may damage the seals.
· Install an isolation valve (not supplied) on the water line near the evaporative module’s inlet for easy maintenance and servicing. We recommend fitting a pressure gauge for commissioning and maintenance.
· Flush the water line thoroughly before connecting the feed water pipework to the evaporation module. · Follow the water supply specifications as mentioned below:
o Water Supply Size – Ø3/4”(20mm), garden hose o Maximum Water Supply Pressure – 70psi (4.8bar) o Maximum Water Supply Temperature – 68°F (20°C)
· Connect the humidifier to a clean drinking water supply. o The humidifier is capable of operating with reverse osmosis (RO) or tap water. If the humidifier is connected to hard water, it will result in scale build-up on the evaporative module and will require frequent cleaning and replacement. o If the supplied water is treated with reverse osmosis, control the total dissolved solid contents in the water, otherwise water acts as a solvent agent resulting in rapid evaporation and media degradation. o Water conductivity of the water must be between 100 and 550 microS/cm at 68°F (20°C). o For direct feed, water conductivity must not be lower than 150 microS/cm at 68°F (20°C). If it is lower, mix the treated water with tap water to achieve the recommended conductivity. Alternatively, install SKV with recirculation (SKVR) and setup the dilution cycle accordingly.

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SKV Evaporative Humidifier
Installation Instructions and User Manual

Stage 4 ­ Drain and Overflow Connections
Any installation work must be carried out by suitably qualified personnel.
Risk of flooding. Never connect drains to a closed pipe work. Always install a tundish to provide a suitable air gap.

Recirculation Model
Overflow Combined drain outlet can be directed to right or left hand side

Main drain Slope of 2º is required for overflow (gravity) drain If no slope can be fitted, separate the 2 drain lines
Open drain is required

P trap height
H = 1” for 1” w.c. stat. press.

Direct Feed Model
Safety overflow drain Ø 1-½” (38mm)
Slope 2º minimum from horizontal

Main drain Ø 2” (51mm)

P trap Height H= 1” for 1”w.c.
stat. Press.
Open drain

!

! CAUTION: Do not combine the overflow and drain to a
common pipe if the width of the evaporation module is

CAUTION: Do not combine the overflow and drain to a common pipe.

below 30” (762mm) or if the main drain has to be lifted to the drain inlet of the building (if no slope can

Two independent traps must be installed for drain and overflow and

be fitted).

sized according to the Table 5 below.

Illustration 11 – Drain and Overflow Connections

Table 4 – P Trap Installation

Drain Type

P Trap

Main drain separated Required if there is no drain pump Overflow separated Always required

Main drain and overflow combined to a common pipe

Always required

Recirculation

if evaporation module over 30″ (762mm) or if main drain is not lifted to drain inlet

Direct Feed x x

Table 5 – Water Drain and Overflow Specifications

SKV Model
Recirculation

Tank width 70″ (1.8m)

70″ (1.8m)

Drain outlet size
Ø ¾” (19mm)
Ø ¾” (19mm)

Direct feed

All

Ø2” (51mm)

Overflow outlet size Ø1.5” (38mm) Ø2” (51mm)
Ø1.5” (38mm)

Minimum slope

Trap size

2° or 1.4”for every 3ft of horizontal run. (35mm for 1m run)
2° or 1.4”for every 3ft of horizontal run. (35mm for 1m run)

1” for every 1” w.c of static pressure (25mm / 250Pa)
25mm for every 250Pa of air static pressure

For AHU or duct with negative pressure, specific precautions must be taken to isolate the drain line in order to avoid any back flow.

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Page | 21

SKV Evaporative Humidifier
Installation Instructions and User Manual

Stage 5 ­ Power Supply Connections

WARNING. All work concerned with electrical installation must only be performed by skilled and qualified technical personnel, such as electricians or technicians with appropriate training. The customer is responsible for ensuring their suitability.

WARNING. Risk of electric shock. Isolate all power supplies before installation and maintenance of the SKV evaporation humidifier.

AHU or Duct

SKV Power Relay box

SKV Controller (1 per system)

SKV Module

1 per module

Control cable (supplied) with connector Power supplied cable (supplied)

Power supply connection (by others)
Communication cable (not supplied)

Illustration 12 – Power Supply Connections

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Page | 22

SKV Evaporative Humidifier
Installation Instructions and User Manual

Table 6 – Power Supply Specifications

Model
SKVR Recirculation model
SKVD Direct feed model

Voltage (V)
120 ­ 1ph 230 ­ 1ph 120 ­ 1ph 230 ­ 1ph

Current (A) 5.5 3 1 0.5

You MUST externally fuse all incoming power supplies for over current protection.

U

U

Isolate the electrical supply for the purpose of emergencies and servicing. We recommend installing a disconnect switch within 1m (3.3ft) of the humidifier. The isolator must have a contact separation of at least 1/8” (3mm). Please observe local codes and regulations concerning the provision of electrical installations.
The installation engineer must ensure the following: · Use copper power conductors only. · Size of the power conductors are suitable for the maximum current supplied. · Incoming power cable is secured via suitably sized cable gland. · Each terminal connection is secured firmly with a cable ferrule. · Humidifier cabinet has an uninterrupted or unbroken electrical ground. Do not use the evaporation module’s frame to connect to ground.
Mounting of the SKV Controller & Power Relay box

Illustration 13 – Mounting the Controller & Power Relay box

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Page | 23

SKV Evaporative Humidifier
Installation Instructions and User Manual

Stage 6 ­ Electrical Control Connections
WARNING. All work concerned with electrical installation must only be performed by skilled and qualified technical personnel, such as electricians or technicians with appropriate training. The customer is responsible for ensuring their suitability.
WARNING. Risk of electric shock. Isolate all power supplies before installation and maintenance of the SKV Evaporative humidifier.

SKV Master

LCD1

PCB

SD1

Micro SD card

port

Not used
TB2

(by others)
purple

From TB12-6 of 1st module From TB12-5 of 1st module To TB12-4 of 1st module From TB12-3 of 1st module To TB12-2 of 1st module To TB12-1 of 1st module

JP2

TB7 TB6

TB5

TB4

TB3

24 Vac Common
24 Vac Analog Input #1 Analog Input #2 Analog Input #3 Analog Output
TB1

RS 485 A+ (BACnet) B-
Air Flow Switch High limit Humidistat
Interlock On/Off demand contact

NO NC

Service contacts

NO

Alarm

contacts
NC

(by others)

Illustration 14 – SKV Controller Wiring Diagram
Safety Contact Connections
Airflow switch contact must be wired between terminals TB6 1&2. If this contact opens, operation of the SKV unit will stop. The unit will display Airflow Switch open, but will not generate an alarm.
High limit humidistat contact must be wired between terminals TB6 1&3. If this contact opens, operation of the SKV unit will stop and an Alarm message will be displayed.
Interlock switch can be wired between terminals TB6 1&4. If this contact opens, operation of the SKV unit will stop and an Alarm message will be displayed.

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Page | 24

SKV Evaporative Humidifier
Installation Instructions and User Manual
On/Off Operation
For On/Off operation, connect the On/Off contact between TB6 1&5. If this contact opens, the SKV unit will turn off. If this contact closes, the SKV unit will operate.
Modulating Operation
Analog
Whatever the source of the control signal (BMS, room or duct humidistat, room or a combination) the signal(s) must be connected between Common and Analog input 1, 2 and/or 3. These analog inputs are configurable at step 1A “Settings” of the Controls menu (see page 28).
BACnet (network)
If the control signal is from a BACnet network, the RS485 A+ & B- must be connected to network (TB7). The network control signal will have to be selected at step 1A “Settings” of the Controls menu (see page 28). Also refer to step 1E “BACnet” of the Controls menu (see page 28) to setup the communication parameters.

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Page | 25

SKV Evaporative Humidifier
Installation Instructions and User Manual
Stage 7 ­ SKV Controller Installation and Configuration

The power (on/off) and drain buttons are protected from accidental activation by a 3-second delay. The power or drain button must be pressed and held for 3 seconds to perform the related action.

Menu Overview
When the SKV controller is in operation, the unit displays three information screens. The Product Info, Modules and System Info screens are displayed for 3 seconds each and then remains on the System Info screen. Press the and buttons located to the right of the screen to manually scroll through each screen.

Model Firmware Serial #

Model
SKV85R 0.20 14V010001

The first screen indicates the model #, firmware revision installed and the controller’s serial #. The SD icon appears if the controller detects a micro SD card. Current time and date are also displayed.

SD 2014-Mar-02 15 :13 :23

Modules

No. of modules

2

Module 1

2 stages

Module 2

3 stages

The second screen provides basic information on the evaporation module(s). The SD icon appears if the controller detects a micro SD card. Current time and date are also displayed.

SD 2014-Mar-02 15 :13 :23

System Info

Room Humidity

45% RH

Room Temp.

21°C

Duct Humidity Demand

40% RH

100.0%

Water flow

1000kg/h

SD 2014-Mar-02 15 :13 :23

The third screen indicates the demand and water flow of the evaporative module(s).
The SD icon appears if the controller detects a micro SD card. Current time and date are also displayed.

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Page | 26

SKV Evaporative Humidifier
Installation Instructions and User Manual

Main Menu Configuration
A. Press the Menu * button. B. Use the , buttons to select the desired main menu category and press Enter . C. If password protection is enabled (see table below), enter the password and press Enter. If you enter the
wrong password, the SKV controller displays an “invalid password” message.

Table 7 – Passwords

Mode/Menu Controls Installer System Setup Diagnostic

Password 637 757 372 None

Priority 1 2 3 4

Required Always required Required only if enabled at menu 1F Required only if enabled at menu 2E Not required

Note: If a password of higher priority has already been provided; individual passwords will not be required. For example, if the Installer menu password has been validated already, access to other menus such as Controls will be unlocked automatically.

D. Use the + and – buttons to increase and decrease the values. Use the , buttons to scroll to the next or previous menu item. Values are saved as soon as a change is made.
E. Press the Menu button to go back one menu. Press the Enter button to advance to the next sub-menu. F. To exit, press the Menu button until you return to the menu overview or after 5 minutes of inactivity the
controller will automatically exit the menu.

Note 1: Available settings and range selections may vary depending on current configuration. The tables in the following sections display all the possible selections. The Notes/Conditions column indicates the conditions required for the associated setting to appear.
Note 2: The Drain Schedule (Menu 2B) and Occupancy Schedule (Menu 2C) on page 29 do not support schedules that cross-over midnight during the same day. For example, Wednesday from 19:00 to 8:00 will stop at midnight. In this case you must configure 2 days as follows: Wed­19:00, Thu­00:00, Thu­08:00.

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Page | 27

Main Menu – Controls

CONTROLS 1A) Settings

Settings Control Mode:

Setpnt Source:

1B) Control Mode

Room RH Src: Room Temp Src: High Limit Src: Feedback Signal:
Occ.Setpnt:

Setpnt Signal:

Prop.Ramp:

Integral Ramp:

Deadband:

1C) Room Sensor 1D) High Limit 1E) BACnet 1F) Password

External signal:
No additional settings RH Signal: Temp. Signal: Min.Temp Range: Max.Temp Range:
Signal:
Setpoint: Prop. Ramp: No additional settings MAC Address: Device Instance: Auto Baud Rate: Baud Rate: Fallback Timeout: Controls Menu

Default Int.Temp
Internal
AI1 AI2 AI3 2-10Vdc 10°C (50°F) or 40% RH
0-10Vdc
0.5°C (0.9°F) or 5.0% RH 0.5°C (0.9°F) or 5.0% RH 0.1°C (0.2°F) or 2.0% RH
0-10Vdc
n/a
0-10Vdc 0-10Vdc -20°C (-4°F) +80°C (176°F)
0-10Vdc
10 %RH 0.0 %RH
n/a
1 3153000 On 9600 2 min Off (Disable)

Range Int.in RH, Int. in Temp, Network, Ext.AI1, Ext.AI2, Ext.AI3 Internal, Network, Ext.AI1, Ext.AI2, Ext.AI3
AI1, AI2, AI3, Network, None AI1, AI2, AI3, Network, None AI1, AI2, AI3, Network, None 0-10Vdc, 2-10Vdc 10.0 to 40.0°C (50.0 to 104.0°F) or 10 to 90% RH
0-10Vdc, 2-10Vdc, 0-20mA, 4-20mA
0.5°to 5.0°C (0.9 to 9.0°F) or 1.0 to 20.0% RH 0.5°to 5.0°C (0.9 to 9.0°F) or 1.0 to 20.0% RH 0.5°to 5.0°C (0.9 to 9.0°F) or 1.0 to 20.0% RH
0-10Vdc, 2-10Vdc, 0-20mA, 4-20mA
n/a
0-10Vdc, 2-10Vdc, 0-20mA, 4-20mA 0-10Vdc, 2-10Vdc, 0-20mA, 4-20mA -50 to 100°C (-58 to 212°F) -50 to 100°C (-58 to 212°F)
0-10Vdc, 2-10Vdc, 0-20mA, 4-20mA
10 to 90 %RH 10 to 20 %RH
n/a
0 to 254 0 to 4194302 On (Enable), Off (Disable) 9.6k, 19.2k, 38.4k, 76.8k 1 to 15 minutes On (Enable), Off (Disable)

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SKV Evaporative humidifier
Installation Instructions and User Manual
Notes/Conditions Network option only available with BACnet models If Int. in Temp or Int. in RH at 1A “Control Mode”. Network option only available with BACnet models Network option only available with BACnet models Network option only available with BACnet models Network option only available with BACnet models
If Int. in Temp or Int. in RH at 1A “Control Mode” and Internal at 1A “Setpnt Source”. If Int. in Temp or Int. in RH at 1A “Control Mode” and External (Ext. AI1, AI2, AI3) at 1A “Setpnt Source”. If Int. in Temp or Int. in RH at 1A “Control Mode” If Int. in Temp or Int. in RH at 1A “Control Mode” If Int. in Temp or Int. in RH at 1A “Control Mode” If External (Ext.AI1, Ext.AI2, Ext.AI3) at step 1A “Control Mode”. Only this option appears No settings to configure on this screen, if Network at 1A “Control Mode”. If AI1, AI2, or AI3 at step 1A “Room RH Src” If AI1, AI2, or AI3 at step 1A “Room Temp Src”
If Int.in RH at 1A “Control Mode”, Network at 1A “Setpnt Source” and AI1, AI2, or AI3 at 1A “High Limit Src”.
No settings to configure on this screen, if None at 1A “High Limit Src”.
Available with BACnet models only
Page | 28

SKV Evaporative humidifier
Installation Instructions and User Manual

Main Menu – System Setup

Sub-Menu 2A) Clock
2B) Drain Schedule

Settings
Time Format: Actual Time: Date: UTC diff: Daylight Saving:
Drain schedule disabled

Default 12h 00.00 13:09:03 +4h Off
n/a

Day:

Monday

Event 1:

Unused

Event 2:

Unused

Event 3:

Unused

2C) Occ.Schedule

Event 4:

Unused

Occupancy schedule disabled

n/a

Day:

Monday

Event 1:

Unused

Event 2:

Unused

Event 3:

Unused

2D) Measure 2E) Options
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Event 4:
Temp Units: Flow Display: Mass Flow Units: Setup Password: Alarm Beep: Key Press Beep: Contrast: Language:

Unused
° F Mass Flow lb/h Off On On 5 English

Range 12h (AM/PM) or 24h 0 to 24 hours YY/MM/DD -12 to +14 hours On (Enable), Off (Disable)
n/a
Monday to Sunday
Unused, Wait, Start Drain, Stop Drain | 00:00 to 23:59
Unused, Wait, Start Drain, Stop Drain | 00:00 to 23:59
Unused, Wait, Start Drain, Stop Drain | 00:00 to 23:59
Unused, Wait, Start Drain, Stop Drain | 00:00 to 23:59
n/a
Monday to Sunday
Unused, Occup., Unoccup, Vacancy, Off | 00:00 to 23:59
Unused, Occup., Unoccup, Vacancy, Off | 00:00 to 23:59
Unused, Occup., Unoccup, Vacancy, Off | 00:00 to 23:59
Unused, Occup., Unoccup, Vacancy, Off | 00:00 to 23:59
°C or °F % or Mass Flow kg/h or lb/h On (Enable), Off (Disable) On (Enable), Off (Disable) On (Enable), Off (Disable) 0 to 10 English, Français or Nederlands

Notes/Conditions

The drain schedule is only available for Recirculation models with the Auto Drain (step 4C) set to Schedule in the Installer menu. The drain schedule is not available for Direct Feed models
Each day of the week can have different events; up to 4 events each. The events displayed are configured and apply to the day that’s displayed.

If you select Wait, Start Drain, or Stop Drain, a clock setting is displayed. Set the time/duration at/in which the unit can perform the drain task. An event cannot cross-over midnight, see Note 2 on page 27.

Wait

= time before drain sequence can start.

Start Drain = time at which drain sequence will start.

Stop Drain = time at which drain sequence will stop.

The drain schedule is only available when the Occupancy Schedule (step 4B) is set to ON in the Installer menu.

Each day of the week can have different events; up to 4 events each. The events displayed are configured and apply to the day that’s displayed.

If you select Occup., Unoccup., Vacancy or Off, a clock setting is displayed. Set the time/duration at/in which the unit can perform the drain task. An event cannot cross-over midnight, see Note 2 on page 27.

Occup. Unoccup. Vacancy Off

= duration the unit remains in Occupancy mode. = duration the unit remains in Unoccupied mode. = duration the unit remains in Vacancy mode. = duration the unit remains Off.

If enabled, the System Menu password is 372.

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SKV Evaporative humidifier
Installation Instructions and User Manual

Main Menu – Diagnostics

Sub-Menu 3A) Functions

Settings Reset Alarm: Start Drain Cycle:

Default No No

Disinfection Time: Start Disinfect.

15 min No

3B) Cleaning 3C) Service

Cleaning Due On:

YY-MM-DD

Last Cleaning: Cleaning Done? Total Runtime Last Silver Ion

YY-MM-DD No 0000 h YY-MM-DD

Silv. Ion Changed? No

3D) Inputs www.neptronic.com

UV Lamp Due On: YY-MM-DD

Last UV Lamp:

YY-MM-DD

UV Lamp Changed?
Control Mode: Setpnt Source: High Limit Src: Setpnt: Demand: Room Temp: Room Humidity: High Limit Sensor:

No
Current value Current value Current value Current value Current value Current value Current value Current value

Range (* indicates no configuration; display only) Yes or No Yes or No
15 to 30 minutes Yes or No

  • Yes or No
    Yes or No
  • Yes or No (Int.RH, Int. Temp, Network, Ext.AI1, Ext.AI2, Ext.AI) (Internal, Network, Ext.AI1, Ext.AI2, Ext.AI3) (AI1, AI2, AI3, Network, None) (mV) (mV) (mV) (mV) (mV)

Notes/Conditions
Set to Yes to reset any alarms that have been restored and require a manual reset. Refer to Alarms on page 34. Set to Yes to start the drain sequence. The time required varies depending on various factors, such as size of tank, quality of drain and factory setting of drain completion time. “In Progress” is displayed until the cycle is completed. Set to Yes to start the disinfection sequence. The sequence fills the tank, and then runs the module(s) at 100% for the duration of the selected Disinfection Time. It then performs an auto-drain sequence and returns to normal operation. If during the Disinfection Time, the tank needs to be filled again, the timer will stop until the tank is filled. The date represents 3 to 12 months after setting “Cleaning Done?” to Yes. This “Cleaning Interval” is set by the Installer at step 4A in the Installer menu. A “Service Warning” appears 100 hours before the due date. A “Service Alarm” appears on the due date. Displays the date at which the “Cleaning Done?” was set to Yes. When the unit has been cleaned, set this value to Yes to reset the “Cleaning Due On” date and “Last Cleaning” date. Displays total number of hours the unit is in function. Displays the date at which the “Silv. Ion Changed” was set to Yes. When the Silver Ion cartridge has been changed, set this value to Yes to reset the “Last Silver Ion?” date. The due date is variable based on water flow and time in use. A “Service Alarm” appears on the due date. The date represents 1500 to 3000 hours after setting “UV Lamp Changed?” to Yes. The “UV Lamp Notice” (no. of hours) is set by the Installer at step 4A in the Installer menu. A “Service Alarm” appears on the due date. Displays the date at which the “UV Lamp Changed?” was set to Yes. When the UV lamp has been changed, set this value to Yes to reset the “UV Lamp Due On” date and “Last UV Lamp” date.
If External (Ext.AI1, Ext.AI2, Ext.AI3) at step 1A “Setpnt Source”. If External (Ext.AI1, Ext.AI2, Ext.AI3) at step 1A “Control Mode”. If External (Ext.AI1, Ext.AI2, Ext.AI3) at step 1A “Room Temp Src”. If External (Ext.AI1, Ext.AI2, Ext.AI3) at step 1A “Room RH Src”. If External (Ext.AI1, Ext.AI2, Ext.AI3) at step 1A “High Limit Src”.

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SKV Evaporative humidifier
Installation Instructions and User Manual

Sub-Menu 3E) Outputs 3F) Miscellaneous
3G) History Log www.neptronic.com

Settings
Demand: Air Flow: High Limit: Interlock: Water Lvl Sensor: Water T. Sensor: Low Water Float: High Water Float: Feedback: Alarm Relay: Maint.Relay: Fill Valve: Drain Pump: Distr. Pump: Stage Valve 1: Stage Valve 2: Stage Valve 3: Stage Valve 4: Ctrl. uC Temp: Ctrl. PCB Temp: Module uC Temp: Module PCB Temp: Water Level: Water Temp: Network Timeout: Fill Countdown: Drain Countdown: Inact Countdown: Inlet Countdown: State Countdown: Last Drain: Controller Alarms

Default
Current value Current value Current value Current value Current value Current value Current value Current value Current value Current value Current value Current value Current value Current value Current value Current value Current value Current value Current value Current value Current value Current value Current value Current value Current value Current value Current value Current value Current value Current value Current value n/a

Module 1 Alarms:

n/a

Trend # days: Trend Interval: Events Over Last:

7 days 5 min 3 months

Range ( indicates no configuration; display only) (Opened or Closed) (Opened or Closed) (Opened or Closed) (Opened or Closed) (Hz) (mV) (Opened or Closed) (Opened or Closed) (mV) (Off or On) (Off or On) (Off or On) (Off or On) (Off or On) (Off or On) (Off or On) (Off or On) (Off or On) (°C or °F) (°C or °F) (°C or °F) (°C or °F) (%) (°C or °F) (seconds) (seconds) (seconds) (seconds) (seconds) (seconds) (00:00 | hh:mm) Example : Controller alarm @2014-03-02 12:12:15 Off
Room RH Sensor Fault Example : Module 1 alarm @2014-03-02 12:12:15 Off
High Limit Sensor Fault 7 to 21 days 1 to 30 minutes 1 to 6 months

Notes/Conditions
Controller microprocessor temperature Controller PCB (printed circuit board) temperature Module microprocessor temperature Module PCB (printed circuit board) temperature
Press enter to view list of controller’s last three alarms. Press enter to view list of selected module’s last three alarms.

Page | 31

Main Menu – Installer

INSTALLER 4A) Service

Settings Cleaning Interval:

Default 3 months

Silver Ion Notice:

Off

UV Lamp Notice: On Service Alarm:

2000 h Unit OFF

4B) Occupancy

Water Lvl Calib.:

Off

Schedule:

Off

4C) Auto Drain
4D) Water Dilution 4E) Sensor Offset 4F) Test Mode

Auto Drain:

Interval

Interval:

4h

Module Inactivity:

6 h

Inlet Inactivity: Inlet Drain Time:

7 days 10s

Interval:

30 min

No. of Cycles:
Room RH Sensor: Room Temp Sensor: High Limit Sensor: Duration: Demand:

2
0 %RH 0 °C/°F 0 %RH 5 min 0 %

Test State:

Off

3 to 12 months

Range

On (Enable), Off (Disable) 1500 to 3000 hours Unit ON, Unit OFF

On (Enable), Off (Disable) On (Enable), Off (Disable)

Schedule or Interval
1 to 24 hours
4 to 72 hours
1 to 7 days 1 to 60 seconds
30 to 1500 minutes 0 to 255 cycles -10.0 to 10.0 %RH -5.0 to 5.0°C (- 9.0 to 9.0°F) -10.0 to 10.0 %RH 5 to 60 minutes 0 to 100 %
On (Enable), Off (Disable)

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SKV Evaporative humidifier
Installation Instructions and User Manual
Notes/Conditions
A “Service Warning” appears 100 hours before the due date. A “Service Alarm” appears on the due date. The due date is displayed in Step 3B of the Diagnostics menu. The due date is variable based on water flow and time in use. If set to On, a “Service Alarm” appears on the due date. If set to Off, notification is disabled. A “Service Alarm” appears on the due date. The due date is displayed in Step 3C of the Diagnostics menu. Determines whether the unit remains turned on or off through the duration of any service alarm (e.g. UV lamp service alarm) Performs an automatic calibration of the capacitive water level sensor. If set to On, every time the tank is filled. If set to Off, on start-up and if the sensor becomes uncalibrated. If Int. in Temp or Int. in RH at step 1A “Control Mode” in Controls menu. Select On to enable the occupancy schedule defined at step 2C “Occ. Schedule” in the System Setup menu. Appears only with Recirculation models. The drain schedule is not available for Direct Feed models. If set to Schedule, refer to “Drain Schedule” in step 2B of the System Setup menu. If set to Interval, refer to Interval time below. If Interval at step 4C “Auto Drain”. Maximum allowable time of inactivity for the evaporation module. If there was no demand for the entire period, the unit will perform an automatic drain sequence (empty and fill the tank). Maximum allowable time of inactivity for the water inlet. Regulates water line drain time in the case where the Inlet Inactivity delay is attained.
Set the interval between each water dilution cycle and the number of cycles. These values are determined by the inlet water quality as defined in Dilution on page 33.
If External (Ext.AI1, Ext.AI2, Ext.AI3) at step 1A “Room RH Src”. If External (Ext.AI1, Ext.AI2, Ext.AI3) at step 1A “Room Temp Src”. If External (Ext.AI1, Ext.AI2, Ext.AI3) at step 1A “High Limit Src”. When the Test State is set to On, you can simulate any demand value and navigate through any of the menus. The red Alarm LED illuminates to indicate that you are in test mode and the screen displays the remaining time that device will be in test mode. To exit, set the Test State to Off or wait for the test duration to elapse.
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SKV Evaporative humidifier
Installation Instructions and User Manual

Water Dilution

ATTENTION: Risk of scale deposits. Correctly set the Water Dilution Interval (Step 4D in Installer

!

menu) and No. of Cycles (4D in Installer menu) according to the water quality or conductivity during commissioning of the humidifier. Failure to do so will result in scale deposits on the evaporation

module and the media panels.

The process of evaporative humidification results in built-up of dissolved solids in the water tank. To control this, a water dilution cycle is run at specific intervals to clean the tank. This water dilution cycle does not interrupt normal system operation. During the cycle, both the inlet and drain valves open to renew the water in the tank. The interval and number of cycles of the water dilution cycle are directly related to the total dissolved solids or water conductivity of the water used. This setting is to be defined at the time of installation and commissioning of the humidifier based on the quality of water as shown in the table below.

Table 8 – Water Dilution (Interval and Number of Cycles)

Water Quality

Water Quality Total Dissolved
Solids (ppm)

Conductivity (microS/cm)

352

550

320

500

256

400

192

300

160

250

128

200

96

150

64

100

Dilution Interval (min)
30 100 200 250 400 600 800 1000

Number of Cycles
5 5 5 5 4 3 2 1

Firmware Update

The firmware update function is available when the unit detects a new firmware version on the micro SD card and the “Firmware upgrade available” message appears.

The firmware files must be installed in a folder named “skv_fw_pack” in the root of the micro SD card.
A. Press the Menu * button. B. Use the , buttons to select “5) Firmware Upgrade” and press Enter .

5

Firmware Update

Password

000

Enter the Installer password [757].
Use the + and – buttons to increase and decrease the numbers, use the , buttons to change digit, and then press Enter to validate the password.

5

Firmware Update

Module Controller

From To 018 020 018 020

Update No No

When performing a firmware upgrade. Always start by updating the Module firmware first.
To update, change the value from No to Yes.
The upgrade process can take a few minutes.

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SKV Evaporative humidifier
Installation Instructions and User Manual

Alarms
Display Air flow open
High limit item open
Interlock open Room temp sensor fault Room RH sensor fault High limit sensor fault Module # timeout
Output limited warning
Module # service warning
Module # service alarm
Module # drain fault
Module # inlet fault
Module # water level sensor fault
Module # water temperature fault
Module # water level alarm Module # high water temperature alarm Module # high water temperature fault Module # water float fault

Description
Indicates that the air flow sensor is open. Verify that the signal from the air flow sensor is present at the SKV controller’s input on the PCB (see schematic).
Indicates that the high limit item is open. Verify that the signal from the high limit (duct) sensor is present at the SKV controller’s input on the PCB (see schematic).
Indicates that the interlock and the cut-out circuitry are open. Verify that the signal from the interlock contact is present at the SKV controller’s input on the PCB (see schematic).
Indicates that the room temperature sensor is defective or incorrectly wired.
Indicates that the room humidity sensor is defective or incorrectly wired.
Indicates that the high limit sensor is defective or incorrectly wired.
Indicates that module is not communicating. Verify wiring of the communication line (see schematic)
Indicates that the output capacity of one or more modules is limited by one of the following:
– High limit cut-out – Analog high limit RH
Appears 100 hours before due date of next unit cleaning. This “Cleaning Interval” (3-12 months) is set by the Installer at step 4A in the Installer menu.
Indicates that the due date for servicing one of the following has arrived: – Service and clean the evaporative modules – Replace the silver ion cartridge – Change the UV lamp
Indicates that the low water level float sensor was not reached at the end of the drain sequence. Verify and remove any obstructions in the drain line.
Indicates that the high water level float sensor was not reached within the programmed delay. Verify and remove any obstructions in the water inlet line and verify that the stop valve is not closed.
Indicates that the capacitive water level sensor is defective. Verify the sensor’s general condition and ensure the proper connection of the wire jacket between the sensor and the PCB of the evaporation module.
Indicates that the water temperature sensor located within the capacitive water level sensor is defective. Verify the sensor’s general condition and ensure the proper connection of the wire jacket between the sensor and the PCB of the evaporation module.
Indicates that the water level is not calibrated properly.
Indicates that the water temperature in the tank is above 77°F [25°C], which is a risk for developing Legionellosis. Verify the temperature of the supply water.
Indicates that the water temperature in the tank is above 77°F [25°C] even after two drain or fill cycles, which is a risk for developing Legionellosis. Verify the temperature of the supply water.
Water level float is stuck.

Alarm Reset Automatic Automatic
Automatic Manual Manual Manual Automatic
Automatic
Manual
Manual
Manual
Manual
Manual

Manual Automatic Automatic Manual Automatic

  • (step 3A in Diagnostic menu) (step 3B or 3C in Diagnostic menu)

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SKV Evaporative humidifier
Installation Instructions and User Manual

Start-up Procedure

Initial verification and start-up must be carried out by suitably qualified personnel.

1. Ensure that the evaporation module is properly installed and attached to the frame of the AHU / Duct

2. The evaporation module should be level on X and Y axes.

Make sure that water distribution drawers are also properly level.

Evaporation 3. Verify that blanking plates have been installed all around the evaporation

module

module and that the plates are properly attached and secure

installation 4. Verify that the media panels are properly installed and maintained and that

there is no space in between each panels avoiding air bypass.

5. Check proper connection of each of the water distribution hoses

6. Ensure that main water supply is from clean potable water. Special consideration should be taken in case reservoir or buffer tank is used. (plan to empty them when SKV will be off for a long period)

7. Verify that pre-filter and silver ion cartridge have been installed

Water 8. Ensure that water supply pressure is between 30 and 70 (2 & 5 bar)

9. Ensure that water is supplied to the evaporation module. A shut-off valve

should be outside the SKV and AHU / Duct.

Once the water shut-off valve is turned ON, ensure that there are no apparent

leaks throughout the water connections.

10. Verify proper installation of drain.

Drain

Please refer to IOM for guidelines 11. Ensure that overflow drain and main drain are connected to an open drain,

and that an appropriate P trap is installed on the overflow drain.

12. Check that the power supply (voltage) conforms to the SKV name plate, and confirm that a disconnect switch is installed.

13. Confirm the proper connection of SKV controller from Evaporation module
Electrical electrical box.

14. In case there are more than one evaporation module confirm that the communication cable (daisy chain) is properly run and connected in between modules.

15. Ensure that a High limit duct humidistat is installed, properly connected to the SKV controller and set point properly adjusted.

16. Ensure that a Air proving switch is installed and properly connected to the SKV controller
Controls 17. Confirm the method of control and signal chosen by customer
a) On/Off contact b) Analog control signal from BMS to AI1 c) Analog control signal from Humidistat to AI1 d) Analog control signal from Thermostat to AI1 e) BACnet control signal to RS485 connection

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SKV Evaporative humidifier
Installation Instructions and User Manual

18. Ensure that the bottom tank of the evaporation module is clean and free from
dust or dirt.
Cleanliness 19. If water line has not been flush after plumbing installation.
Make sure to flush water supply line before to start up the SKV.

20. Put power supply disconnect ON. 21. Confirm that the LCD display of SKV controller is On 22. Confirm set-up of control parameters according to control signal source and
Start up connection.

23. Press on the ON/OFF button on the SKV controller. Note: to avoid any unintentional activation it is required to press and maintain this button for 3 seconds for change of state.

24. If there is a demand, the bottom tank of the evaporation chamber will fill up,
Then the recirculation pump will start up and depending on the % of demand the corresponding stage valves will be activated

25. If there is no demand, you can proceed to a test cycle. Go to Installer menu / 4F Test mode

SKVR

Note: if Hi limit contact is opening during the test the test will be interrupted.

26. During this initial test run, make sure :

a) that water level is Ok (no water to overflow)

b) that there is no water leak

c) that the recirculation pump and the stage valves are properly activated.

27. During the test when the bottom tank is full of water, measure the water

Set up dilution

conductivity

cycle

28. Based on the water conductivity reading set up the dilution cycles parameters accordingly.

Refer to IOM, menu installer. Go to Installer menu / 4D water dilution cycle.

29. After the test run, apply a demand from the system and manually open the 3 safety contacts, ideally from the device (in order to make sure that wiring is ok) SKV humidifier cooler should stop operation:

Safety test

a) Air proving switch ­ no alarm + message on LCD b) Hi limit humidistat ­ alarm + message on LCD

c) Interlock contact ­ alarm + message on LCD

Make sure to re-activate (close) the contact after the test

30. If SKV evaporation has not been drained yet.

Drain operation

Manually order a drain of the evaporation module by pressing (3sec) on the drain button.

31. Ensure that there is no leak at drain connections and the evaporation module is properly and efficiently drained.

32. When start-up is completed, make a disinfection cycle Refer to IOM for guidance in this process

33. Go to diagnostic menu / 3A Functions, disinfection time and start.

Disinfection

When bottom tank is full of water add the disinfection solution and mix it properly

Let the cycle run for the programmed time.

34. Make sure to properly rinse the evaporation module after the disinfection cycle. Same cycle but with new fresh water (without disinfection solution).

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SKV Evaporative humidifier
Installation Instructions and User Manual

Servicing and Maintenance

This humidifier must be installed, operated, and maintained by suitably qualified personnel and in accordance with this manual.
Preventative Maintenance
The SKV requires both inspection and service at regular intervals. The frequency of servicing depends on factors such as water quality, capacity and the number of hours in operation. It is recommended to inspect and service the evaporation module after 200 hours post commissioning. This inspection is necessary to determine the frequency of both inspection and service.
Verification List
Perform the following regularly to ensure optimal performance and operation of the evaporative module(s).
· Check for water leaks. · Check for stagnant water. · Observe the operation of the water flow and evaporation cycle. · Check drain operation and flow. · Ensure that all electrical connections are secure. · Ensure that the 5µm water pre-filter is not clogged. · Verify if the Silver Ion “service warning” has appeared. If so, replace the Silver Ion dosing cartridge. · Ensure that the air duct filter upstream of the SKV evaporation module is clean. · Check for any accumulation of dirt in the bottom of the tray. If there is a significant presence of
impurities, clean the tank at the bottom of the unit. · Check the flow control at the output of the pump and clean or replace if necessary. · Ensure that the water supply hoses at the top of the evaporation module are clean and in good
condition. · Remove the water distribution trays at the top of the evaporation module and make sure they are
clean, clean if necessary. · Remove the cassette containing the media and remove / clean any residue or deposits accumulated
on the media or frames. · Ensure that the media is completely dried once every 24 hours in order to limit bacterial growth.
Water Sampling and Testing (Hygiene)
Legionella disease can be fatal. Maintain and control the water system of SKV according to the local Health & Safety regulation codes.
The SKV has been designed to minimise any possible risk of Legionellosis growth. However, perform the following checks in order to reduce the growth of Legionellosis:
· Conduct a risk assessment of the water system by a competent authority. · Implement appropriate inspection and control measures. · Maintain water temperature below 68°F [20°C]. · Maintain a clean, drinking quality water supply. · Avoid water stagnation. · Carry out regular microbiological testing of water (counting the number of bacterial units).
Refer to the ISO 5667-1 standard (Water quality – Sampling – Part 1: Guidelines for the design of programs and sampling techniques) · Clean and disinfect the system regularly. Refer to Legionella and the prevention of legionellosis, by World Health Organization 2007, ISBN 92 4 156297 8 for more 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.

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SKV Evaporative humidifier
Installation Instructions and User Manual

If the SKV is stopped for extended periods (over 24 hours), make sure the tank at the bottom of the unit and the water supply hose to the unit are drained, unless there is a regular renewal of the water system. Contamination of the water system can cause the development of Legionella bacteria that can be fatal.
Table 9 – Proposed Plan of Control and Disinfection According to Microbiological Testing of Water

Aerobic Heterotrophic Count (CFU/ml)
10,000 or less More than 10,000 and up to 100,000
More than 100,000

Required Action
Acceptable control. No remedial action required.
Run a disinfection cycle with chlorine dioxide; perform another microbiological test of the water after the disinfection cycle. If the result is not reduced below 10,000 CFU / ml or less, then perform a manual cleaning and disinfection and review the control programming before restarting the SKV.
Immediately stop the SKV, perform a manual cleaning and disinfection, and review the control programming before restarting the unit. Corrective action must be undertaken to reassess the level of hygiene control and a new risk analysis of the water network and system.

Disinfection

Use personal protective equipment that provide proper protection against the disinfection solution and the inhalation of the Legionella bacteria.
Before commencing a disinfection cycle, perform the following functions:
· Assess the situation for any security risk with the person responsible for health and safety of the building. · Check records, namely, sample results of microbiological testing of water. · If possible, carry out disinfection when the building is unoccupied. All surfaces that require disinfection or cleaning must be in contact with the same concentration of disinfection solution for same amount of time. All surfaces must be clear of any sort of residue to ensure that the disinfectant neutralises any harmful bacteria. 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 pipework. It may also be necessary to disinfect the supply water system pipework or water treatment systems. Neptronic recommends routine disinfection of the humidifier in the following situations:
· At initial commissioning. · Depending on the results of the microbiological water testing and monitoring plan and sampling adopted (see
Table 9 above). · 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 disinfecting the SKVF evaporative media, ensure that it is fully rinsed and then fully dried for a period of 2 hours, before it is reinstalled in the media cassette and returned to normal operation in the evaporative cooler.
Recommended Disinfection Solution
The concentration of quaternary amines must be maintained between 30 to 50 PPM, in order to be effective without damaging the system.
· Quaternary amines such as: o Octyl Decyl Dimethyl Ammonium Chloride o Alkyl Dimethyl Benzyl Ammonium Chloride o n-Alkyl Dimethyl Ethyl Benzyl Ammonium Chloride
· Non-oxidizing biocides such as: o Tetrakis Hydroxymethyl Phosphonium Sulfate o 2,2-Dibromo-3-Nitrilopropionamide
DNBA non-oxidizing biocide are effective and safe for the media, however, they can damage stainless steel parts and cause pitting corrosion. When cleaning the media in a separated container, ensure to properly rinse before re- attaching it to the frame and the humidifier.

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SKV Evaporative humidifier
Installation Instructions and User Manual
Non-Recommended Disinfection Solution
Oxidizing biocides, such as bleach or hydrogen peroxide are to be avoided as they are corrosive to the media panel and will degrade it over time.
Disinfection Method Statement
Step 1 – Preparation · Refer to the manufacturer’s recommendations for concentrations for applying and the method of preparation of the solution. · Make sure that the air system (central air or ventilation system) is stopped. · Make sure the SKV is stopped.
Step 2 – Mix disinfection solution · Mix the disinfection solution following the manufacturer’s instructions. · The calculation of the volume to be treated must consider the volume of the tank at the bottom of the SKV, but also the volume of all media cassettes.
Note: It may be necessary to clean the tank at the bottom of the SKV prior to disinfection if it is particularly contaminated or dirty.
Step 3 – Start the disinfection cycle · Add disinfection solution to tank at the bottom of the unit and allow mixing. · Go to step 3A in the Diagnostics menu, set the Disinfection Time and select Yes to start the disinfection sequence. · The sequence fills the tank, and then runs the module(s) at 100% for the duration of the selected Disinfection Time. It then performs an auto- drain sequence and returns to normal operation. If during the Disinfection Time, the tank needs to be filled again, the timer will stop until the tank is filled.
Step 4 – Neutralise and rinse · It is possible that the disinfectant used requires neutralization after application. · In case neutralization is required by the manufacturer, repeat steps 2 and 3 with the neutralizing solution.
Step 5 – Restart and new microbiological testing of water · Once steps 1-4 are completed, the air system (central air or ventilation system) and the SKV can be restarted in auto mode. · A new microbiological test must be performed immediately after to confirm that the number of heterotrophic organisms is less than 10,000 CFU / ml (as per Table 9 on page 38).
De-scaling
If untreated tap water is used, de-scaling of the SKV may be required. To avoid accumulation of scale, Neptronic recommends using RO water whose conductivity is between 100 and 550 micro S/cm. When using city water, Neptronic recommends a visual inspection of all parts of the evaporative module one month after commissioning to define the required frequency of de- scaling based on the accumulation of scale observed. De-scaling solution recommended:
· White vinegar (acetic acid): White vinegar typically has an acid concentration of 10% or below, therefore, the dilution ratio in volume should be 1:400 with clean water, as to not exceed 250ppm in the cleaning solution.
CAUTION: Avoid the use of phosphate-based scale control agents, as they will promote algae growth in the system.

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SKV Evaporative humidifier
Installation Instructions and User Manual
De-scaling Method Statement
Step 1 – Preparation · Refer to the manufacturer’s recommendations for concentrations to apply and the method of preparation of the solution. When using white vinegar (acetic acid), do not exceed a concentration of 250-260 ppm when descaling the media. · Make sure that the air system (central air or ventilation system) is stopped. · Make sure the SKV is stopped.
CAUTION: When working with de-scaling solution, always wear appropriate personal protective clothing, protective gloves, and eye protection.
Step 2 – Dismantle the Evaporative Module · Turn off and isolate electrical supplies to the unit. · Remove all media cassettes. · Remove the pump skid.
Step 3 – Prepare 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 and of a suitable size to completely immerse each media cassette. · Make sure you also have a second clean container and of a suitable size filled with clean, clear water
to immerse each cassette after de-scaling.
Step 4 – Remove scale from individual cassettes · Using a soft brush, lightly brush any loose scale from the surface of the media. · Lower the individual cassettes into the de-scaling solution. · Keep each matrix cassette in the solution until the reaction between the calcium on the matrix and the de- scaling solution is complete.
Note: The effect of the de-scaling solution will vary depending on the condition of the media’s material. For an improved effect, the above process may have to be repeated.
· Clean and if necessary and apply de-scaling solution on all parts of the evaporation module which are covered with scale.
Step 5 – Rinse · Lift the individual cassettes out of the acid solution, allow any excess de-scaling solution to drip, and directly submerse into the clean water container. · If necessary, rinse a second time while profusely wetting the media.
Step 6 – Re-assemble and restart · Replace the media cassettes, media frames and recirculation pump skid on the evaporation module. · Reconnect the power supply. · On the control panel, go to step 3A in the Diagnostics menu, set the Disinfection Time and select Yes to start the disinfection sequence. This cycle will ensure a final thorough rinsing of the evaporative module. · Once the rinse cycle is completed, the air system (central air or ventilation system) and the SKV can be restarted in automatic mode.

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SKV Evaporative humidifier
Installation Instructions and User Manual

Troubleshooting

Water Leakage from the Tank

· Check that the installation of the tank is level. · Check for any damage or holes in the tank. · Check for any damaged or ill-fitted drainpipe-work and ensure that there are no leaks.

Water Carries Over Into Air Stream

· Check the air velocity at the inlet of the evaporation module. Make sure the value corresponds to initial design data. The limits of the air velocity for the evaporation medium are as follows.

Pressure

With Separator

Without Separator

Negative

14.7 ft/s (4.5 m/s)

11.8 ft/s (3.5 m/s)

Positive

14.7 ft/s (4.5 m/s)

9.8 ft/s (3.0 m/s)

· The air velocity might be uneven. Fit a perforated plate before the humidifier. · Ensure that the humidifier media cassettes are correctly fitted and installed. · Verify correct installation of the water distribution drawers.
Loss of Performance
· The humidifier cassette is blocked or damaged. Check for the damaged media cassettes and replace, if required.
· Ensure that the humidifier media cassettes are correctly fitted and installed. · There is not enough flow of water, check that the flow regulators are not blocked or that the hoses or
pipe distribution in the upper trays are not blocked.
Scale Build Up on the Surface of the Media
· Excess concentration of minerals and salts in the tank. Check dilution cycle and increase the dilution. · Water quality has changed.
Note: an accumulation of dust on the media may be caused by a failure of the air filtration.

Module Pump is Not Functioning
· Check that the safety contacts are not open, and in particular the RG high limit switch. · Check that there is a demand for or moisture. · Check that the SKV is in automatic mode and in the ON position. · Check that there are no alarms present and in particular a water level fault. · Check that the water level in the tank is sufficient.

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SKV Evaporative humidifier
Installation Instructions and User Manual
Exploded View and Parts List
Evaporative Humidifier (Direct-Feed Model)
6 7

5

8

4

B

DD

3

9

CC A

10

2

11

1

12

13

14 Illustration 15 – Exploded View (Direct-Feed Model) Table 10 – Evaporative Humidifier (Direct-Feed model) Part Numbers

Ref

Description

1 Bottom tank

2 Support beam

3 Side frame

4 Holding rail

5 Top frame

6 Water distribution drawer assembly – Column B

7 Water distribution drawer assembly ­ Column A

8 Quick connect 90deg for water hose

9 Rubber grommet

10 Water hose

11 Cover for stage valve

12 Solenoid valve

13 Water inlet manifold

14 Flow regulator

Part Number SW V7110-PN SP V7115-PN SW V7350PN SW V7200-PN SW V7400-PN SW V77410B-PN SW V7410A-PN* SW V7606 SP V2050 SP V1610 SP V1612 SP 6004 SP V1603 See flow regulator table

Note: *PN refers to project number from Humidisoft and as indicated on the name plate of SKV humidifier.

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SKV Evaporative humidifier
Installation Instructions and User Manual
Evaporative Humidifier (Recirculation Model)
4 5
10

6 9
8 3

7

1

2

Illustration 16 – Exploded View (Recirculation Model)

Table 11 – Evaporative Humidifier (Direct-Feed model) Part Numbers

Ref

Description

1 Water fill valve

2 Drain pump

3 Pump skid

Flow regulator ­ 4 L/min

4 Flow regulator ­ 6 L/min

Flow regulator ­ 8 L/min

5 Stage water intake valve

6

Water distributor ­ Triple model

Water distributor ­ Single model

7 Connection enclosure

8 Capacitive water level sensor

9 Mechanical water level sensor

10

Main pump ­ 120V

Main pump ­ 240V

Part Number SP6003 SPG4101 See below for full list of parts SPV1676-4 SPV1676-6 SPV1676-8 SP6012 SPV1620 SPV1625 n/a SW SKVWATLEV – ASSY SPV1604 SPV1601 SPV1602

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SKV Evaporative humidifier
Installation Instructions and User Manual
Evaporative Humidifier (Relay Box and Control Panel) 2
4 3
1 5
6

7

Illustration 17 – Relay Box and Control Panel Table 12 – Evaporative Humidifier Part Numbers

Ref 1 Relay PCB 2 Transformer 3 Capacitor 4 Water Level Sensor 5 Float 6 Display PCB 7 Main PCB

Description

Part Number NW SKV-RELAYSS SP 3365 (230v) OR SP 3080 (120v) n/a SW SKVWATLEV- ASSY SP V1604 NW SKV-DISPLAYSS NW SKV-MAINSS

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SKV Evaporative humidifier
Installation Instructions and User Manual

Media Panels

Table 13 – Media Panel Numbers

Ref

Description

A

Media panel bottom left

B

Media panel top left

C

Media panel bottom right

D

Media panel top right

Evaporation Factor
65%, 75mm depth 75%, 100mm depth 85%, 150mm depth 95%, 200mm depth 65%, 75mm depth 75%, 100mm depth 85%, 150mm depth 95%, 200mm depth 65%, 75mm depth 75%, 100mm depth 85%, 150mm depth 95%, 200mm depth 65%, 75mm depth 75%, 100mm depth 85%, 150mm depth 95%, 200mm depth

Part number

Media only

Media + frame

SP VM65A-PN*

SW VM65A-PN*

SP VM75A-PN*

SW VM75A-PN*

SP VM85A-PN*

SP VM85A-PN*

SP VM95A-PN*

SW VM95A-PN*

SP VM65B-PN*

SW VM65B-PN*

SP VM75B-PN*

SW VM75B-PN*

SP VM85B-PN*

SW VM85B-PN*

SP VM95B-PN*

SW VM95B-PN*

SP VM65C-PN*

SW VM65C-PN*

SP VM75C-PN*

SW VM75C-PN*

SP VM85C-PN*

SW VM85C-PN*

SP VM95C-PN*

SW VM95C-PN*

SP VM65D-PN*

SW VM65D-PN*

SP VM75D-PN*

SW VM75D-PN*

SP VM85D-PN*

SW VM85D-PN*

SP VM95D-PN*

SW VM95D-PN*

Note: *PN refers to project number from Humidisoft and as indicated on the name plate of SKV humidifier.

Recommended Spares List

The following parts are recommended to be replaced as part of preventive maintenance program. Table 14 – Spare Parts Replacement

Spare Part Water Pre-filter and Silver Ions Dosing
Evaporative Media

Replacement Frequency
Based on water consumption and time in use, refer to step 3C “Service” in the Diagnostics menu (page 30)
Based on type of water used: – If operated with regular tap water, every 3 years or 2500 hours. – If operated with treated water, every 5 years or 5000 hours.

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Notes

400 Lebeau 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)

References

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