neptronic SKH4 High Pressure Atomizer User Manual
- June 15, 2024
- neptronic
Table of Contents
- SKH4 High Pressure Atomizer
- SKH4 High-Pressure Atomizer
- Specifications
- Foreword
- About the Manual
- Health and Safety Instructions
- General
- Electrical Warning Message
- Health & Safety
- Q: What is the warranty period for the SKH4 High-Pressure
- Q: Can the SKH4 High-Pressure Atomizer be used in commercial
- Q: Where can I find the Certificate of Conformity for ETL?
SKH4 High Pressure Atomizer
SKH4 High-Pressure Atomizer
Specifications
-
Product: SKH4 High-Pressure Atomizer
-
Manufacturer: Neptronic
-
Year of Establishment: 1976
-
Product Line: Intelligent controllers, electronic actuators,
actuated valves, humidifiers, and electric heaters -
Manufacturing Facility: Montreal, Canada
-
Manufacturing Area: 7,500 m2 (80,000 ft2)
-
Compliance: Conforms to Canadian and American safety standards
and directives -
Certification: ETL (c) & (us) mark
-
Website: www.neptronic.com
Foreword
Neptronic is a private corporation that specializes in
designing, manufacturing, and distributing products for the HVAC
industry. With over 250 dedicated employees, we operate from a
state-of-the-art facility in Montreal, Canada. Our products are
known for their durability and innovative features, making them
suitable for the ever-evolving challenges of the HVAC industry.
About the Manual
This manual provides installation and operation instructions for
the SKH4 High-Pressure Atomizer humidifier. It has been developed
to ensure correct and safe operation of the product. The SKH4
High-Pressure Atomizer complies with Canadian and American safety
standards and directives and bears the ETL (c) & (us) mark. For
more information, please contact the manufacturer.
Health and Safety Instructions
General
This manual is intended for engineers and technical personnel
trained by or their official agents. It must be thoroughly read
before specifying, designing, installing, or operating the SKH4
High-Pressure Atomizer. Please retain this manual for future
reference and contact Neptronic if you have any questions.
Electrical Warning Message
WARNING: Risk of electric shock. Before opening
the electrical access door, disconnect the SKH4 High-Pressure
Atomizer. All electrical installation work must be performed by
skilled and qualified technical personnel, such as an electrician
or a technician with appropriate training. The customer is
responsible for ensuring the suitability of the technical
personnel. Please follow the local regulations regarding electrical
installations.
Health & Safety
Installation, maintenance, repair work, or de-commissioning of
the SKH4 High-Pressure Atomizer should only be carried out by
appropriately qualified technical personnel. A qualified Health
& Safety representative should identify any risks or hazards
related to the system and introduce effective control measures as
necessary. The customer is responsible for ensuring compliance with
all local regulations during the equipment installation.
FAQ
Q: What is the warranty period for the SKH4 High-Pressure
Atomizer?
A: The warranty period for the SKH4 High-Pressure Atomizer is 2
years from the date of purchase.
Q: Can the SKH4 High-Pressure Atomizer be used in commercial
buildings?
A: Yes, the SKH4 High-Pressure Atomizer is suitable for use in
commercial buildings.
Q: Where can I find the Certificate of Conformity for ETL?
A: The Certificate of Conformity for ETL is available upon
request with the manufacturer.
SKH4 High-Pressure Atomizer
Installation Instructions and User Manual
Read and save this manual
SKH4-N-ESL-231208
4011008
SKH4 High-Pressure Atomizer
Installation Instructions and User Manual
Foreword
Neptronic Company Overview
Founded in 1976, Neptronic is 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. 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 using a vertical integration model.
We currently hold several national and international patents, and with our
continued commitment to research and development, we provide innovative
products and technologies for the ever-evolving challenges of the HVAC
industry. Exporting over 75% of our sales, we have an exclusive distribution
network around the globe that provides comprehensive solutions to our
worldwide customers.
About the Manual
These installation and operation instructions have been developed to
facilitate the installation of the SKH4 High-Pressure Atomizer humidifier.
· The strict application of these instructions ensures 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
connections and installation 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.
Copyright Information
Copyright ©2023 by Neptronic. All rights reserved. This document cannot be
reproduced wholly or partially by any means, whether electronic, mechanical,
photocopy, recording or other, without prior written authorization of
Neptronic.
www.neptronic.com
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SKH4 High-Pressure Atomizer
Installation Instructions and User Manual
Health and Safety Instructions
General
This manual has been written to ensure correct, safe and sustainable operation
of the SKH4 High-Pressure Atomiser and is intended for use by engineers and
technical personnel trained by or their official agents. This manual must be
read thoroughly before specifying, designing, installing or operating a SKH4
High-Pressure Atomizer. Please retain for reference and contact Neptronic
should you have any questions.
The triangular symbol with the word WARNING: is used to designate danger of
severe or lethal consequence.
The circular symbol with the word CAUTION: is used to designate danger of
injury, or to warn of the hazardous operating condition, or other relevant
information.
Electrical Warning Message
WARNING: Risk of electric shock. Do not access. Disconnect SKH4 High-Pressure
Atomizer before opening the electrical 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 the local regulations concerning the
provision of electrical installations.
Health & Safety
Installation, maintenance, repair work or de-commissioning should only be
carried out by appropriately qualified technical personnel. Any risks or
hazards relating to the system, including during installation and maintenance,
should be identified by a qualified 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 qualified personnel may lead to a hazardous operating
condition.
WARNING: Danger of Electrocution! Danger of contact with live parts when the
unit is open. Always isolate all water and electrical supplies to the system
before commencing any maintenance or repair. Isolate power and water
immediately if there are any signs of water leaking from the unit.
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SKH4 High-Pressure Atomizer
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, ASHREA
guideline 12-2023 does provide recommendations. If not adequately monitored
and maintained, water systems can support the growth of microorganisms
including the bacterium that causes Legionnaires’ disease. The SKH4 has been
designed to reduce the potential risk of legionellosis growth. Users also
share the responsibility for 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 the SKH4 to a clean water supply main
or higher quality water (such as RO). · Avoid stagnant water. · Avoid turning
off the system without properly draining all conduit. Automatic drains are
scheduled in the unit to
avoid the stagnant water. · Avoid water temperatures that increase the risk of
Legionella growth. (77°F to 113°F, 25°C to 45°C) · Clean and disinfect the
system regularly, at least once a year.
WARNING: Risk of Legionnaires’ disease, which can be fatal. Install and
operate the SKH4 High-Pressure Atomizer as per the instructions given in this
Installation Instructions and User Manual.
WARNING: If the SKH4 High-Pressure Atomizer is turned off for prolonged
periods (more than 24 hours), ensure that any piping supplying the unit is
drained, unless they supply other systems which ensure a regular renewal of
water in the system. Failure to do so may result in stagnation of the water
and contamination that might cause Legionnaires’ disease, which can be fatal.
It is the responsibility of the person on whom the statutory responsibility
falls to determine all control and preventative measures outlined in this
manual.
Correct Use
Neptronic systems and products are designed only for humidification and
cooling 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.
Important Start-Up Information
Before turning on and operating the SKH4 High-Pressure Atomizer:
· Read all instructions and installation procedures outlined in this manual.
Ensure that the operation of the system is properly understood before
commencing the start-up procedure.
· Ensure that all wiring is properly installed and that all connections have
been made correctly, including the network communication cable between the
pump station and the RVP(s).
· Verify all piping before starting up the system. As each zone may have a
different capacity and the system has been configured as such, connecting the
wrong RVP output to a zone may lead to erratic operation.
General Warranty
This product is subject to the terms and conditions described at
www.neptronic.com/sales-conditions.aspx.
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SKH4 High-Pressure Atomizer
Installation Instructions and User Manual
Handling and Packaging
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 is checked by a qualified 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 SKH4 High-Pressure Atomizer MUST always be handled and lifted with care
and should remain in its original packaging for as long as possible before
installation.
The SKH4 High-Pressure Atomizer package may be carried using a forklift from
the underside. Caution should be exercised to ensure balanced load before
lifting.
Inspection
Upon receipt, and once packaging material is removed, carry out an inspection
to ensure that no damage occurred during transit. Report any damage
immediately to your Neptronic representative.
Unpacking
The SKH4 pump station is delivered in a crate. All other optional products,
such as the distributors or the remote valve panel are delivered separately in
carton.
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SKH4 High-Pressure Atomizer
Installation Instructions and User Manual
Table of Contents
Handling and Packaging …………………………………………………………………………………………………………………………………. iv
Overview……………………………………………………………………………………………………………………………………………………………………………. 7
Benefits …………………………………………………………………………………………………………………………………………………………..7
Features …………………………………………………………………………………………………………………………………………………………7 SKH4
System …………………………………………………………………………………………………………………………………………………………………….. 8
Principle of Operation ……………………………………………………………………………………………………………………………………….8
SKH4 Pump Station……………………………………………………………………………………………………………………………………………………………..
9 Visual Overview ………………………………………………………………………………………………………………………………………………9 Pump
Unit Nomenclature ………………………………………………………………………………………………………………………………. 11
Capacities and Power Consumption of the Pump Unit (Brass)
…………………………………………………………………………… 12 Capacities and Power Consumption of the Pump
Unit (SS) ……………………………………………………………………………….. 13 Dimensions and Weight
………………………………………………………………………………………………………………………………… 14 Fan-Assisted
Distributors……………………………………………………………………………………………………………………………………………………. 15 Fan-
Assisted Distributors Nomenclature…………………………………………………………………………………………………………..
15 Capacities and Power of the Fan-Assisted Distributors
……………………………………………………………………………………… 15 Fan-Assisted Distributors Dimensions and
Weight ……………………………………………………………………………………………. 16 In-Duct Distribution Rack
……………………………………………………………………………………………………………………………………………………. 17 Basic
Installation Overview ………………………………………………………………………………………………………………………………………………….
18 Pump Unit
Installation………………………………………………………………………………………………………………………………………………………… 19 Step
1 SKH4 Pump Station Installation…………………………………………………………………………………………………………. 19
General Recommendations……………………………………………………………………………………………………………………………….. 19
Step 2 Water Connections for the SKH4 Pump Station
…………………………………………………………………………………… 21 Step 3 Power Supply
Connections……………………………………………………………………………………………………………….. 23 Power Supply
Connections on SKH4 Pump Station ……………………………………………………………………………………………… 23 Power
Supply Knockout Holes Location on SKH4 Pump Station
……………………………………………………………………………. 24 Step 4 Electrical Control
Connections…………………………………………………………………………………………………………… 25 Safety Contact
Connections for Pump Unit………………………………………………………………………………………………………….. 25 Safety
Contact Connections Single Zone Without TRUB
………………………………………………………………………………………. 25 Safety Contact Connections per Zone from
TRUB ……………………………………………………………………………………………….. 25 Network Communication
…………………………………………………………………………………………………………………………………… 26 Step 5 Pump Controller
Installation and Configuration ……………………………………………………………………………………. 27 Idle
Screen ………………………………………………………………………………………………………………………………………………………………………. 28
Menu Access ……………………………………………………………………………………………………………………………………………….. 28
Configuration parameters …………………………………………………………………………………………………………………………………..
29 Control function ………………………………………………………………………………………………………………………………………………..
29 Control Profile Selection
……………………………………………………………………………………………………………………………………. 29 Single Zone Operation
……………………………………………………………………………………………………………………………………… 29 Multi-Zones Operation
………………………………………………………………………………………………………………………………………. 30 Menu – General [Level
1 – No password required] ………………………………………………………………………………………………… 31 Menu – User
Settings [Level 2 – Requires level 2 (or higher) password in order to access]
………………………………………… 34 Menu – Service [Level 3 – Requires level 3 (or higher)
password in order to access]…………………………………………………. 36 Menu – Installation [Level
4 – Requires level 4 (or higher) password in order to access]
……………………………………………. 37 Menu – Integration [Level 5 – Requires level 5 password
in order to access] ……………………………………………………………. 41 List of Alarms and Warnings
………………………………………………………………………………………………………………………….. 44 Distribution
Installation……………………………………………………………………………………………………………………………………………………….. 45
Spraying in Space (Standard) …………………………………………………………………………………………………………………………….
45 Spraying in Space with Fan-Assisted Distributors
………………………………………………………………………………………………… 47 Spraying in Duct
………………………………………………………………………………………………………………………………………………. 50
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SKH4 High-Pressure Atomizer
Installation Instructions and User Manual
Optional Remote Valve Panel (RVP)
…………………………………………………………………………………………………………………………………. 51 RVP Dimensions
………………………………………………………………………………………………………………………………………….. 51
Location ………………………………………………………………………………………………………………………………………………………….. 52
Positioning ………………………………………………………………………………………………………………………………………………………. 52 Wall
Mounting………………………………………………………………………………………………………………………………………………….. 52 Start-Up
Procedure……………………………………………………………………………………………………………………………………………………………. 53
Initial Verification ………………………………………………………………………………………………………………………………………….. 53
Diagnostic mode…………………………………………………………………………………………………………………………………………… 54
Servicing and Maintenance
………………………………………………………………………………………………………………………………………………… 55 Preventative
Maintenance ……………………………………………………………………………………………………………………………… 55 Preventive
Maintenance (continued)……………………………………………………………………………………………………………….. 56 Nozzle
Cleaning …………………………………………………………………………………………………………………………………………… 57 De-scaling
the Droplet Separator ……………………………………………………………………………………………………………………. 58
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SKH4 High-Pressure Atomizer
Installation Instructions and User Manual
Overview
The SKH4 High-Pressure Atomizer uses water through a high-pressure system to
produce a fine mist with a droplet size of less than 20µm. The ambient air
absorbs the fine mist, and the SKH4 adapts to seasonal changes to provide
direct evaporative cooling in summer and humidification in winter.
Additionally, the SKH4 provides BACnet MS/TP communication, multi-zone
operation (up to 4 zones) and remote connection to the entire system from any
zone.
Benefits
· Very low energy consumption · Free cooling (up to 21.5°F [12°C]) · Hygienic
operation · Environmentally friendly · Low pressure drop in ventilation
conduit
Features
The following are the features of the SKH4 High-Pressure Atomizer: · High
pressure pump with recirculation valve integrated. · Full stainless steel
distribution valves and fittings. · Corrosion resistant distribution network
made of stainless steel pipe or nylon tube. · BACnet communication (optional).
· User-friendly, menu-driven LCD (128 x 64). · Real-time clock and SD card or
USB key for schedule, trending, and history log. · Firmware upgrade using an
SD card or USB key.
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SKH4 High-Pressure Atomizer
Installation Instructions and User Manual
SKH4 System
Principle of Operation
The SKH4 High-Pressure Atomizer is a system for humidifying and cooling with a
fine mist of water droplets. The pump unit pressurizes the high-quality water
until it reaches a pressure of 1000psi (69bar), then distributes it throughout
a network of stainless steel pipes or nylon flexible conduits, which then
distributes the pressurized water as a fine mist. These water particles
measure less than 20µm. This mist is then easily absorbed into the air,
providing humidification, and cooling, through the adiabatic evaporation
process.
The SKH4 Pump Unit is equipped with a pump and a motor that can use an
optional VFD in order to control the pump speed. The regulation of the outlet
pressure is assured mechanically by the pump, in order to maintain a
consistent and reliable outlet pressure, regardless of the configuration of
stages open.
The unit is equipped with two analog manometers place in the front, one for
the low pressure and one for the high-pressure outlet. There are also digital
manometers so that the controller can monitor those pressures. The low
pressure controls the input of water to the pump in order to protect the pump
unit from running dry. The high-pressure sensor monitors the output of the
pump, in order to assure consistent mist generation and detect leakage.
In case of unexpected shutdown and failure of valve that could create a water
hammer coming back to the pump, a pressure relief is placed in the
recirculation loop. The relief valve prevents damage to the inlet of the pump
and the low-pressure components.
The distribution of high-pressure water is assured in the pump unit, or
optionally from a remote valve panel, with an array of configurable valves.
Each pair of valves (one for the input and one for the drain) is assigned at
the installation to a capacity in mass per hour and to a control signal. The
unit is able to receive up to 4 control signals in order to cover 4 different
zones, which can also be split up into 6 stages in total.
The control signals are displayed either by using a thermostat in each zone
that is connected to the unit or by connecting through a BMS with a demand
directly to the unit. The BMS can be connected via BACnet or Modbus protocols.
The distribution of mist is accomplished by using anti-drip stainless steel
nozzles which are designed to create a cone of mist to shoot the water
droplets directly into the air. The nozzles are either installed directly in
the space or in an AHU.
In-space distribution requires installing distribution piping (stainless steel
or nylon flexible conduit), with a fitting for each nozzle. Clearances are
important between nozzles and any obstacle in the area, such as trusses,
columns and/or tall equipment. See the hydraulic and distribution design guide
for more details.
In-space distribution can be facilitated with optional fan-assisted
distributors. Those distributors allow reduced absorption distances and
improve the coverage of the distribution network.
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SKH4 Pump Station
Visual Overview
SKH4 High-Pressure Atomizer
Installation Instructions and User Manual
Illustration 1 – SKH4 Enclosure
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SKH4 High-Pressure Atomizer
Installation Instructions and User Manual
Illustration 2 – Detailed Overview of Components
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Illustration 3 – Detailed Overview of Low Pressure Components
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SKH4 High-Pressure Atomizer
Installation Instructions and User Manual
Pump Unit Nomenclature
Table 1 – Pump Module Nomenclature
Designation
Pump Module Nomenclature SKH4-ABBBC DD EF
Notation
Description
A
N: North America – 60Hz
Frequency
BBB C DD
E
F
005 to 300 B (Brass) S (Stainless) 0 to 6 0 to 6 A: 120 VAC / 1ph B: 208 / 1ph C: 220-240 VAC / 1ph D: 208 / 3ph E: 220-240 VAC / 3ph G: 480 VAC / 3ph H: 600 VAC / 3ph [blank] (On/Off) M (Modulating – Controlled with VFD)
Capacity (lb/h) Pump Type Number of Inlet Valves (Zero implies valve in the
RVP) Number of Drain Valves (Zero implies valve in the RVP)
Supply Voltage
Motor Control
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SKH4 High-Pressure Atomizer
Installation Instructions and User Manual
Capacities and Power Consumption of the Pump Unit (Brass)
Table 2 – Capacities and Power Consumption of the Pump Unit (Brass)
Model
SKH4-N021B SKH4-N021B – M SKH4-N050B SKH4-N050B – M SKH4-N100B SKH4-N100B – M
SKH4-N185B SKH4-N185B – M SKH4-N280B SKH4-N280B – M
Max output (lb/h)
Min Output (lb/h)
210
52
210
20
500
125
500
20
1000
250
1000
20
1850
462
1850
20
2800
700
2800
20
A 120/1 15.0
8.4 22.4 13.1
–
Model
SKH4-N021B SKH4-N021B – M SKH4-N050B SKH4-N050B – M SKH4-N100B SKH4-N100B – M
SKH4-N185B SKH4-N185B – M SKH4-N280B SKH4-N280B – M
Power (HP)
1/2 1/2 1 1 2 2 5 5 5 5
A 120/1
14 16 10 14 –
Brass Pump
MCA (A)
B 208/1
C 240/1
D 208/3
E 240/3
G 480/3
8.6
7.5
4.9
4.3
2.1
4.8
4.2
4.8
4.2
2.1
12.9
11.2
7.7
6.6
3.3
7.6
6.6
7.6
6.6
3.3
–
–
11.3
9.0
4.9
–
9.7
11.2
9.7
4.8
–
–
22.9
19.8
9.9
–
–
22.8
19.8
9.9
–
–
22.9
19.8
9.9
–
–
22.8
19.8
9.9
Brass Pump
Minimum Wire Gauge (Copper conductors)
B
C
D
E
G
208/1 240/1 208/3 240/3 480/3
16
16
16
16
16
16
16
16
16
16
14
14
14
16
16
16
16
16
16
16
–
–
14
14
14
–
14
14
14
16
–
–
10
14
12
–
–
10
14
12
–
–
12
12
14
–
–
12
12
14
H 600/3
1.7 1.7 2.7 2.7 3.9 3.9 8.0 7.9 8.0 7.9
Cabinet
S S S S S S L L L L
H 600/3
16 16 16 16 16 16 14 14 16 16
Cabinet
S S S S S S L L L L
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SKH4 High-Pressure Atomizer
Installation Instructions and User Manual
Capacities and Power Consumption of the Pump Unit (SS)
Table 3 – Capacities and Power Consumption of the Pump Unit (SS)
Model
SKH4-N062S-M SKH4-N0140S-M SKH4-N0225S-M SKH4-N0280S-M
Model
SKH4-N062S-M SKH4-N0140S-M SKH4-N0225S-M SKH4-N0280S-M
Max output (lb/h)
Min Output (lb/h)
620
62
1400
140
2250
225
2800
280
Power (HP)
1 1/2 3 5 5
A 120/1
–
A 120/1
–
Stainless Steel Pump
MCA (A)
B 208/1
C 240/1
D 208/3
E 240/3
G 480/3
–
18.8
19.0
18.8
9.4
–
–
29.4
29.1
14.6
–
–
45.5
45.2
22.6
–
–
45.5
45.2
22.6
Stainless Steel Pump
Minimum Wire Gauge (Copper conductors)
B
C
D
E
G
208/1 240/1 208/3 240/3 480/3
–
14
14
14
14
–
–
10
10
14
–
–
8
8
12
–
–
8
8
12
H 600/3
7.5 11.8 18.2 18.2
Cabinet
S S L L
H 600/3
14 14 14 14
Cabinet
S S L L
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Dimensions and Weight
SKH4 High-Pressure Atomizer
Installation Instructions and User Manual
Illustration 4 – SKH4 Pump Unit Dimensions
Table 4 – Pump Station Dimensions (North America)
Enclosure Type Small Enclosure Large Enclosure
Model
SKH4-N021B SKH4-N050B SKH4-N100B SKH4-N062S SKH4-N140S SKH4-N175B SKH4-N300B
SKH4-N225S SKH4-N280S
Dimensions (inch) [mm]
A
B
C
Weight (lb) [kg]
44.5 (1130)
28.5 (724)
13.57 (345)
300 (136)
46.63 (1184)
30.63 (778)
18.69 (475)
320 (145)
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SKH4 High-Pressure Atomizer
Installation Instructions and User Manual
Fan-Assisted Distributors
Fan-Assisted Distributors Nomenclature
Table 5 – Fan-Assisted Distributors Nomenclature
AAA BBBB C DD
Designation
Fan-Assisted Distributors Nomenclature
SKH4-AAA BBBB C DD
Notation
Description
MDU
Radial distribution unit
ADU
Axial distribution unit
0100 to 2500
CFM
A : 120 VAC / 1ph
B : 208 VAC / 1ph
Supply Voltage
C : 240 VAC / 1ph
01 to 20
Number of spray nozzles
Capacities and Power of the Fan-Assisted Distributors
Table 6 – Fan-Assisted Distributors Capacity and Power
Model
Nozzle Capacity
CFM
Voltage
RLA (A)
Mounting
Illustration
1 (6.6lb/h to 10lb/h)
ADU (Axial)
5 (33lb/h to 50lb/h)
7 (46lb/h to 70lb/h)
MDU (Radial)
9 (60lb/h to 120lb/h)
12 (80lb/h to 120lb/h)
120V (60Hz) 200
240V (60Hz)
1000 2000 1000 2000
120V (60Hz) 240V (60Hz) 120V (60Hz) 240V (60Hz) 120V (60Hz) 240V (60Hz) 120V (60Hz) 240V (60Hz)
0.9
Wall mounted
0.5
1.4 0.5
Wall mounted 1.5
0.9 1.4 0.5
Suspended 1.5 0.9
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SKH4 High-Pressure Atomizer
Installation Instructions and User Manual
Fan-Assisted Distributors Dimensions and Weight
Table 7 – Fan-Assisted Distributors Dimensions and Weight
Model
Nozzle Capacity
Dimensions (in) [mm]
Weight (lb) [kg]
Mounting
Illustration
1 (6.6lb/h to 10lb/h)
[3l/h to 5l/h]
12.14 x 9.4 x 10.5 [308 x 239 x 267]
8 [3.6]
Wall mounted
ADU (Axial)
MDU (Radial)
5 (33lb/h to 50lb/h)
[15l/h to 25l/h] 7 (46lb/h to 70lb/h)
[21l/h to 32l/h] 9 (60lb/h to 90lb/h)
[27l/h to 45l/h] 12 (80lb/h to 120lb/h)
[36l/h to 60l/h]
Diameter 18.3 x 8.4 [465 x 213] Diameter 23.1 x 9.1 [587 x 231] Diameter 20.3 x 9 [516 x 229] Diameter 23.5 x 8.7 [597 x 221]
17 [7.7] 25 [11.3]
Wall mounted
22 [10] 31 [14.1]
Suspended
For more information on the absorption distance, please refer to the Distributors Guide.
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In-Duct Distribution Rack
SKH4 High-Pressure Atomizer
Installation Instructions and User Manual
Illustration 5 – In-Duct Distribution
Dimensions and weight vary for each installation, consult with the factory in
order to get a quote and detailed drawings for each application. Refer to the
Duct Distribution Guide for more details how to install the duct rack and
droplet separator.
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SKH4 High-Pressure Atomizer
Installation Instructions and User Manual
Basic Installation Overview
WARNING: Failure to observe manufacturer’s installation recommendations voids
the manufacturer’s warranty.
Installation Summary
Illustration 6 – Overview of a Typical System Distribution in Space
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SKH4 High-Pressure Atomizer
Installation Instructions and User Manual
Pump Unit Installation
Step 1 SKH4 Pump Station Installation Step 2 Water and Drain Connections
Step 3 Power Supply Connections Step 4 Control Connections Step 5 Pump
Controller Installation and Configuration
Step 1 SKH4 Pump Station Installation
General Recommendations
WARNING: Risk of electric shock. Disconnect the appliance from the electric
supply before commencing installation. CAUTION: Risk of injury. The SKH4 pump
station is heavy; It MUST always be handled and lifted with care.
Location
Consider the following points before deciding the location for the pump
station: · Plan a location that is easy to access to permit an easy inspection
and servicing of the pump station. · Do not install the pump station where the
failure of the appliance could cause damage to the building structure or other
equipment. · Ensure that the location is ventilated appropriately, and that
the ambient temperature is less than 86°F (30°C). · Ensure that the floor
beneath the SKH4 pump station is waterproof to withstand any water spillage
during servicing or if a problem occurs.
Positioning
· The pump unit can be floor mounted, either directly or with the use of a
floor stand, or it can be wall mounted. · Allow some space beneath the pump
station for the drain pan connection, located below the bottom plate. ·
Respect the clearances around the pump station as shown in this illustration,
in order to permit access to the
connections and allow for servicing:
Right side clearance 6″ (152mm)
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Front clearance 30″ (762mm)
Left side clearance 24″ (610mm)
Illustration 7 – Clearances
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SKH4 High-Pressure Atomizer
Installation Instructions and User Manual
Floor Mounting
· Provide a level, solid foundation for the SKH4 pump station.
· Ensure that the SKH4 pump station is leveled with the provided with adjustable legs.
· Allow some space beneath the pump station for the drain pan connection, located below the bottom plate.
Wall Mounting
· Provide a level, solid foundation for the SKH4 pump station.
· Allow some space beneath the pump station for the drain pan connection, located below the bottom plate.
Min. Clearance 4″ (102mm) (Not mandatory)
If electrical wire connected from the back side
Min. Clearance 6″ (152mm) for motor ventilation; left door removal optional
electrical inlet
Min. Clearance 24″ (610mm) for front door opening and mainteanance
Min. Clearance 24″ (610mm) for plumbing and electrical
inlet and outlet connection
SKH4
Leave adequate space beneath the bottom plate for plumbing connections
Illustration 8 – Wall Mounting & Clearances
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SKH4 High-Pressure Atomizer
Installation Instructions and User Manual
Step 2 Water Connections for the SKH4 Pump Station
· Install an isolation valve (not supplied) on the water line near the pump
station inlet for ease of maintenance and servicing. Place the valve in front
of the water filter if used.
· Flush the water line thoroughly before connecting the feed water pipework to
the pump station.
Illustration 9 – Water Connections for Pump Station Note: Do not over tighten the hose fittings as this may damage the seals.
Water Supply
Table 8 – Water Supply and Drain Connection Specifications
Specification Water supply size Minimum water supply pressure Maximum water
supply pressure Minimum water supply temperature Maximum water supply
temperature
Water supply quality
Drain outlet size Pan drain outlet size
All Models Male NPT 1/2″ (DN15)
30 PSI (2.0 bar) 70 PSI (4.8 bar)
38°F (3°C) 77°F (25°C) Stainless Steel Pump: 5-20 µS/cm Brass Pump: 10-80
µS/cm Female NPT 1/2″ (DN15) 7/8″ Round tube
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SKH4 High-Pressure Atomizer
Installation Instructions and User Manual
Water Supply
· Connect the female NPT connection of the water supply inlet of the
humidifier to a high quality water source.
· The SKH4 requires high quality water to prevent scale build-up and clogging
of the spray nozzles, resulting in frequent replacement of nozzles. Poor water
quality is also damaging to the pump. Furthermore, most of the minerals
contained in the water are sprayed into the air.
· Brass pumps are compatible with tap water, reverse osmosis (RO) and
deionized water (DI), although RO water is preferable, in the conductivity
range of 10-80 µS/cm.
· Stainless steel pumps require high quality water, tap water will cause
irreversible damage quickly. RO or DI water in the 5-20 µS/cm conductivity
range is recommended.
· If the supplied water is treated with reverse osmosis or deionization
filtration, control the total dissolved solid contents in the water to be
above the minimum recommended (see Table 8), as there is no need for ultra-
pure water.
High-Pressure Water Outlets
· High-pressure water outlets use a 3/8″ (DN10) flexible high-pressure nylon
hose (available upon request) connected to a push-to-connect 3/8″ fittings
(supplied) with the respective stage and drain valves.
· Alternatively, stainless steel rigid piping with compression fittings or
1/2″ (DN15) flexible high-pressure nylon with matching push-to-connect hose
can also be used at the outlets (available upon request).
· (Optional) If using a remote valve panel (RVP), connect the RVP inlet
manifold to a single outlet from the pump unit to minimize pressure losses.
Connections are made using a 3/8″ (DN10) or 1/2″ (DN15) flexible highpressure
nylon hose or a high-pressure hydraulic hose or stainless steel rigid piping
(available upon request). (See RVP section)
Note: Ensure that the rating of the flexible hose is appropriate for the
operating pressure (1000PSI / 70bar).
Water Drain
· Connect a ½” NPT (DN15) pipe (not supplied) to the 1/2″ NPT female (DN15)
drain outlet to an open drain outlet.
· The pan drain is located below the base of the SKH4 pump station and is
directed towards the main building open drain.
· The open drain pipe must have a minimum diameter of 1-1/2″ (DN40).
WARNING: Risk of flooding. Never connect the drains to a closed piping
network.
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Illustration 10 – Water Drain Connections
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SKH4 High-Pressure Atomizer
Installation Instructions and User Manual
Step 3 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 SKH4 High-Pressure Atomizer or the RVP.
You MUST externally fuse all incoming power supplies for over current
protection. Observe local codes and regulations concerning the provision of
electrical installations.
The installation engineer must ensure the following:
· Use copper power conductors only.
· Ensure that the size of the power conductors is suitable for the maximum
current supplied.
· Secure incoming power cables using a suitably sized cable gland.
· Secure each terminal connection with a cable ferrule.
· Do not use the SKH4 pump station’s frame to connect to ground. The SKH4 pump
station cabinet has a provision for the electrical ground.
Power Supply Connections on SKH4 Pump Station
1 Phase (by others)
3 Phase (by others)
Illustration 11 – One and Three Phase Power Supply Connections
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SKH4 High-Pressure Atomizer
Installation Instructions and User Manual
Power Supply Knockout Holes Location on SKH4 Pump Station
Connect high power cable through the knockout holes provided on the unit.
Alternative points are given depending on the installation constraints.
Illustration 12 – Power Supply Knockout Holes
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SKH4 High-Pressure Atomizer
Installation Instructions and User Manual
Step 4 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 SKH High-Pressure
Atomizer.
Illustration 13 – Electrical Control Connections
Safety Contact Connections for Pump Unit
Available directly on the pump unit, this safety contact will interrupt all
actions of the pump unit, for all zones.
· Interlock. Wire the switch on the PCB between terminals TB3 1&4. If this
contact opens, the operation of the SKH4 unit stops all zones and an Alarm
will be displayed. If the interlock is not used, install a jumper between
terminals TB3 1&4.
Safety Contact Connections Single Zone Without TRUB
· Interlock. Wire the switch on the PCB between terminals TB3 2&3. If this
contact opens, the operation of the SKH4 unit stops all zones and an Alarm
will be displayed. If the interlock is not used, install a jumper between
terminals TB3 2&3.
Safety Contact Connections per Zone from TRUB
Available on each TRUB, these will have an effect only the associated zone,
other zones will continue their operation:
· Airflow Switch (Activated option). Wire the contact on the TRUB between the
recommended terminals TB2 2 (COM) & 3 (UI3). If this contact opens, the
operation of the valve(s) will stop. The unit displays the Airflow switch as
`open’ but will not generate an alarm. (refer to the configuration menu)
· High Limit Humidistat (Activated option). Wire the contact on the TRUB
between the recommended terminals TB1 13 (COM) &15 (UI2). If this contact
opens, the operation of the valve(s) will stop, and an Alarm will be
displayed. If spraying in-space, the high limit humidistat is not required.
· Interlock. Wire the switch on the TRUB between the recommended terminals TB2
2 (COM) & 4 (UI4). If this contact opens, the operation of the SKH4 unit stops
and an Alarm will be displayed.
For more information, consult the TRUB documentation.
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SKH4 High-Pressure Atomizer
Installation Instructions and User Manual
Network Communication
If the control signal is from BACnet MS/TP or Modbus RTU network, connect
terminals TB2 1&2 to the network (RS485 A+ & B). If the control signal is from
a network of one or multiple TRUB, connect terminals TB1 1&2 to the network
(RS485 A+ & B-). The network control signal(s) must be selected by accessing
the Control sub-menu located in the Installation menu (see page 58). To setup
the communication parameters, access the Integration menu (see page 41).
Note: BACnet MS/TP is configured by default. To change the communication
interface to Modbus RTU, access the NtwrkOption setting located in the Network
sub-menu of the Integration menu (see page 41).
Illustration 14 – Network Communication Connections
BACnet Network
The SKH4 master pump station may use BACnet or Modbus protocols to
communicate, either with an IP connection or MS/TP.
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SKH4 High-Pressure Atomizer
Installation Instructions and User Manual
Step 5 Pump Controller Installation and Configuration
User Interface
Back/Menu Button Up Arrow Button
Enter Button Plus Button
Down Arrow Button
Minus Button
Power Button
Drain Button
Status Display
Controller Panel Features
Illustration 15 – SKH4 Controller
The following are the features of the Control Panel and their description:
Table 9 – Humidifier Control Panel Description
Feature
Description
Indicates that the humidifier is turned on. The LED will begin blinking as the
system (Blue) is initializing.
Status Display
Indicates that the humidifier is issuing an alarm or warning and that the system must (Red) be verified.
O (Off)
Indicates that the humidifier is turned off.
Power Button
The power button is used to turn the humidifier on or off. Must be pressed and held for 3 seconds to perform the related action, in order to prevent accidental activation. Even when the humidifier is powered off, the controller remains operational.
Drain Button
The drain button is used to manually activate the drain cycle. Must be pressed and held for 3 seconds to perform the related action, in order to prevent accidental activation. Even when the humidifier is powered off, a manual drain cycle may be initiated. Once the manual drain cycle is completed, the system will automatically be powered off. To turn the humidifier back on, press and hold the power button.
Up and Down Arrow Buttons
The up arrow button is used to scroll to the next menu item or parameter. The down arrow button is used to scroll to the previous menu item or parameter.
Plus and Minus Buttons
Back/Menu Button
Enter Button
The plus button is used to increase the value of the displayed parameter.
The minus button is used to decrease the value of the displayed parameter.
The back/menu button is used to go to previous menu or to access the Main Menu
page from the Idle Screen. The enter button is used to advance to the next
sub-menu, to access selected option or to confirm set parameter value.
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SKH4 High-Pressure Atomizer
Installation Instructions and User Manual
Idle Screen
When the controller is in operation, the unit displays the following
information on the Idle Screen:
Table 10 – Idle Screen Display Description
Setting Pressure: ControlState:
Default Current value Current value
State:
Current value
ZonexDemand: Current value
Range (* indicates no configuration; display only)
- (min: 0 psi, max: 10000 psi)
- (Off, Normal, LowLimit, HighLimit, NoAirFlow, Interlock) (Off, Idle, LineRinse, TankRinse, Filling, Draining, Heating, Boiling, Alarm) (min: 0.00%, max: 100.00%)
Description/Notes
Displays the current value of the pump pressure. Displays the current state of
the safety control circuit and whether the circuit has been disconnected due
to a safety switch. Displays the current state of operation of the humidifier.
Displays the value of demand for the selected zone.
Illustration 16 – Idle Screen Display
Menu Access
· From the Idle Screen, the Main Menu can be accessed by pressing the
Back/Menu button, enabling access to the General menu.
· To view other menu options and perform configurations to the system, press
Enter while on the Idle Screen to advance to the Login Screen, where a valid
password must be entered.
· Four different passwords can be used, each granting access to an additional
menu option depending on the access level assigned to the provided password.
· If a password of higher access is provided, all menu options accessible with
the use of a lower-level password will also be unlocked.
Table 11 – Access Levels
Access Level
1
Password None
2
2222
3
3322
4
4433
5
5544
Menu Unlocked
General User
Service Installation Integration
Description/Notes
Grants access to General menu. Grants access to General and User menus. Grants
access to General, User and Service menus. Grants access to General, User,
Service and Installation menus. Grants access to General, User, Service,
Installation and Integration menus.
Note: To modify or retrieve lost passwords, please contact factory.
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SKH4 High-Pressure Atomizer
Installation Instructions and User Manual
Configuration parameters
In the menu Installation/quickConfig/Stage[ ], each stage needs to be defined.
Input which zone (control signal) each stage is connected to and input the
capacity (L/h) for the stage control. Input the drain valve associated with
the stage valve (the two valves should form a loop with the nozzles in
between). The drain volume can be increased if the line is very long, in order
to ensure depressurization of the line.
Control function
Ramp up: In the menu Installation/quickConfig/Zone[ ]/StgOpenDelay, this
parameter allows a user to add a delay between the opening of the stages, for
each zone separately. When that time value is higher than zero, the smallest
stage will open, followed by the second smallest after the delay
parameterized. The output increases progressively, which results in less
intense variation in the system, which results in the control being more
precise and reduces the risk of overshooting during the startup process.
Pulse settings: In the menu Installation/quickConfig/Stage[ ], the MaxOnTime and PauseTime features allow the user to make the stages pulse. This feature can be useful in order to shorten absorption distances by allowing a time pause between the addition of water in the air which eases the absorption. This parameter should only be used with multi stage zones, in order to prevent the short cycling of the pump and motor. If the humidification by pulse stops and starts the motor in a period shorter than 5 min, revise the pulse setting to prevent damages to the pump unit components.
WARNING: The parameters for setting the pulse frequency should be validated
with a test in order to make sure the pump and motor do not start and stop too
frequently within 5 minutes, as this may damage the pump or the electrical
components.
Control Profile Selection
In order to select the desired control profile, first determine the signal
type to be used (by demand [external profile] or sensor [internal profile]).
Next, determine whether the humidifier is going to be controlled via a network
or by an analog signal from the following options based on the number of
zones:
Single Zone Operation
Control Profile External Signal Analog
The unit expects a demand signal in the form of a 0-10V, wired on the pump
unit’s control board, on pin TB4 3. The unit follows that demand directly and
activates the respective valves in order to minimize the error between the
output and the demand. This configuration requires a thermostat.
Control Profile External Signal Network
The unit expects a demand signal, coming from the network. Set the demand
using the object AV.138 Control Network Demand. This configuration requires a
thermostat and a BMS.
Note: The main controller board inside of the pump unit needs be equipped with
the option of network, either with the IP connection or the MS/TP connection.
Both Modbus and BACnet protocols are supported.
Control Profile Internal Signal Analog
The pump unit’s control board receives a 0-10V signal from the setpoint
reading and a room temperature/humidity input from a sensor through the
control input on TB4 pin 3, and then calculates internally the PID
(proportional, integral, and derivative) control responses and computes the
desired outputs. This configuration requires temperature/humidity sensor(s).
Refer to Table 12 – Complete List of Configurable Objects for complete list of
configurable objects.
Control Profile Internal Signal Network
The unit expects either a temperature demand signal (set using object AV.155
Control Network Demand and object AV.156 Room temperature setpoint) or a
humidity demand signal (set using object AV.106 Room RH Network Reading and
object AV.107 Room RH Setpoint), coming from the network and then calculates
internally the PID (proportional, integral, and derivative) control responses
and computes the desired outputs. This configuration requires
temperature/humidity sensor(s) and a BMS. Refer to Table 12 – Complete List of
Configurable Objects for complete list of configurable objects. Note: The main
controller board inside of the pump unit needs be equipped with the option of
network, either with the IP connection or the MS/TP connection. Both Modbus
and BACnet protocols are supported.
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SKH4 High-Pressure Atomizer
Installation Instructions and User Manual
Table 12 – Complete List of Configurable Objects
Control Profile Internal Analog/Network Humidity
Internal Network Temperature
PID Loop Configuration
Configurable Objects
1. AV.110 Room RH Demand Proportional Gain 2. AV.111 Room RH Demand Integral
Time 3. AV.112 Room RH Demand Derivative Time 4. AV.230 Room RH Demand
Proportional Band 5. AV.108 Room RH Unoccupied Setpoint 6. AV.109 Room RH
Vacant Setpoint
1. AV.159 Room Temperature Demand Proportional Gain. 2. AV.160 Room
temperature Demand Integral Time. 3. AV.161 Room Temperature Demand Derivative
Time. 4. AV.174 Room Temp Demand Proportional Band. 5. AV.157 Room Temperature
Unoccupied Setpoint. 6. AV.158 Room Temperature Vacant Setpoint.
Multi-Zones Operation
Control Profile External Signal Analog
Same description as the single zone operation.
TRUB Controller
When using a TRUB thermostat, connect the PCB controller to the TRUB. For more details, consult the TRUB documentation.
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SKH4 High-Pressure Atomizer
Installation Instructions and User Manual
Menu – General [Level 1 – No password required]
Press the back/menu button from the Idle Screen to access the General menu.
Sub-Menu
Setting
Default
Range (* indicates no configuration;
display only)
SysPowerState:
Off
- (Off, On)
Airflow:
Closed
- (Closed, Open)
SupplyHighLimit:
Closed
- (Closed, Open)
Status
Interlock:
Closed
State:
Pressure: ControlSate: ZoneA to D
ZoneADemand to D:
Temperature:
Current value
Current value Off [6] 50%
68.0°F [20.0°C]
Humidity:
0.00%RH
Control: Occupancy:
Off Occupied
- (Closed, Open)
- (Off, Idle, Spraying, Draining, Alarm) (min: 0 psi, max: 10000 psi) (Off, On)
- (min: 0%, max: 100%)
- (min: -40.0°F, max: 302.0°F) * [min: -40.0°C, max: 150.0°C] Units: C, F min: 0.00%RH max: 100.00%RH Units: %RH
- (Off, Normal, Airflow, SupplyHighLimit, Interlock)
- (Occupied, Unoccupied, Vacant, Off)
RoomTempDemand:
Current value
- (min: 0%, max: 100%)
Control
TempSupplyHLDemand: Current value
- (min: 0%, max: 100%)
RoomRHDemand:
Current value
- (min: 0%, max: 100%)
RHSupplyHLDemand:
Current value
- (min: 0%, max: 100%)
Physical IO
AirFlow: SupplyHighLimit:
Closed Closed
- (Closed, Open) * (Closed, Open)
Description/Notes
Displays the status of the system power state.
Displays the status of the airflow switch. If Open is displayed, it indicates
that the airflow is not detected by the air pressure switch. Displays the
status of the high limit contact. If Open is displayed, it indicates that the
humidity level has exceeded the setpoint on the high limit humidistat.
Displays the status of the interlock. If Open is displayed, it indicates that
the humidifier is stopped as a result of the interlock safety being open.
Displays the current state of operation of the humidifier.
Displays the current value of the pump pressure.
Displays the status of the control state.
Displays the value of demand for the zone.
Displays the value of temperature for the zone.
Displays the valve humidity for the zone.
Displays the current state of the safety control circuit and whether the
circuit has been disconnected due to a safety switch.
Displays the current occupancy state.
Displays the room temperature demand value. Only appears if there is a single
zone and ControlProfile is set to an internal control mode or DemandSrc is set
to TempRoomDemand. Displays the supply high limit temperature demand value.
Only appears if there is a single zone and ModHLProfile is set to an internal
control mode or HighLimitSrc is set to TempSupplyHLDemand or if there’s a
single zone. Displays the room humidity demand value. Only appears if there is
a single zone and ControlProfile is set to an internal control mode or
DemandSrc is set to HumRoomDemand. Displays the supply high limit humidity
demand value. Only appears if there is a single zone and ModHLProfile is set
to an internal control mode or HighLimitSrc is set to RHSupplyHLDemand.
Displays the status of the airflow switch. If Open is displayed, it indicates
that the airflow is not detected by the air pressure switch. Displays the
status of the high limit contact. If Open is displayed, it indicates that the
humidity level has exceeded the setpoint on the high limit humidistat.
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Interlock: Pressure: InPressSwitch: ControlInput: ControlInput:
RoomTemp:
SupplyHLRH:
SupplyHLTemp:
WaterTemp:
Physical IO
WtrLeakDet:
DriveEnable: DriveStatus: DriveSignal: MotorSpeed: ContactorPump: AlarmRelay:
RelayFuse:
ServiceRelay: Valve1 Valve2 Valve3 Valve4 Valve5 Valve6 Valve7 Valve8 Valve9
Valve10 Valve11 Valve12
SysStatus:
System
Vendor:
Model: AppVersion: SerialNo: Profile:
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SKH4 High-Pressure Atomizer
Installation Instructions and User Manual
Closed
Current value Low Current value
Current value
Current value
Current value
Current value
Current value
Ok
Off Ok 0.000V Current value Off Off
Normal
Current value Off Off Off Off Off Off Off Off Off Off Off Off
Operational
Neptronic 0.11.20230731 – SKH4 Controller
- (Closed, Open)
- (min: 0 psi, max: 10000 psi) (Low, Ok) (min: 0%, max: 100%) (min: -40.0°F, max: 302.0°F) [min: -40.0°C, max: 150.0°C] Units: C, F
- (min: -40.0°F, max: 302.0°F) * [min: -40.0°C, max: 150.0°C] Units: C, F
- (min: 0%, max: 100%)
- (min: -40.0°F, max: 302.0°F) * [min: -40.0°C, max: 150.0°C] Units: C, F
- (min: 32.0°F, max: 257.0°F) * [min: 0.0°C, max: 125.0°C] Units: C, F
- (Ok, Leak)
- (Off, On) (Ok, Fault) (min: 0.000V, max: 10.000V) (min: 0%, max: 100%) (Off, On) * (Off, On)
- (Normal, Blown Fuse)
- (Off, On) (Off, On) (Off, On) (Off, On) (Off, On) (Off, On) (Off, On) (Off, On) (Off, On) (Off, On) (Off, On) (Off, On) (Off, On) * (Operational, Operational Read-Only, Download required, Download in progress, Nonoperational, Backup in progress)
-
-
- *SKH4 Controller
-
Displays the status of the interlock. If Open is displayed, it indicates that
the humidifier is stopped as a result of the interlock safety being open.
Displays the value of the pump pressure. Displays the status of inlet pressure
switch. Displays the current control input humidity reading.
Displays the current control input temperature reading.
Displays the room temperature reading value. (Only appears if ControlProfile
is set to InternAnalog or RoomRHSrc is set to RoomRH.) Displays the supply
high limit humidity reading value. Displays the supply high limit temperature
reading value. (Only appears if ModHLProfile is set to InternAnalog or
SupplyHLReadingSrc is set to SupplyHLRH.)
Displays the temperature of water in the evaporation chamber.
Displays whether a water leak has been detected. If Leak is displayed, it
indicates that there is a leak within the water line. Displays the status of
the drive enable. Displays the status of drive. Displays the value of the
drive signal. Displays the value of the motor speed. Displays the status of
the contactor pump. Displays the status of the alarm warning relay. Displays
the current status of the PCB fuse. If Blown Fuse is displayed, the fuse must
be replaced. Displays the status of the service warning relay. Displays the
status of the valve 1. Displays the status of the valve 2. Displays the status
of the valve 3. Displays the status of the valve 4. Displays the status of the
valve 5. Displays the status of the valve 6. Displays the status of the valve
7. Displays the status of the valve 8. Displays the status of the valve 9.
Displays the status of the valve 10. Displays the status of the valve 11.
Displays the status of the valve 12.
Displays the current system status.
Displays the name of the vendor of the product. (Always Neptronic) Displays
the humidifier model name. Displays the current application software version.
Displays the serial number of the humidifier. Displays a short profile for the
configured device.
Page | 32
System
MCULoad: MemoryLoad: Runtime:
ResetReason:
SKH4 High-Pressure Atomizer
Installation Instructions and User Manual
Current value Current value Current value
None
- (min: 0%, max: 100%) (min: 0%, max: 100%) (min: 0 sec, max: 999999999 sec)
- (None, BOR, Pin, POR, Soft, IWDG, WWDG, LPWR, Unknown)
Displays the current microcontroller load.
Displays the current memory load.
Displays the number of seconds that the system has been powered on. This value
is reset every time the system is shut off.
Displays the reason for the previous system reset: None = No Reset; BOR =
Brownout Reset; Pin = Pin Reset (using PCB Reset Button); POR = Power-on
Reset; Soft = Software Reset; IWDG = Independent Watchdog; WWDG = Windowed
Watchdog; LPWR = Low Power Reset; Unknown = Unknown Cause
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Page | 33
SKH4 High-Pressure Atomizer
Installation Instructions and User Manual
Menu – User Settings [Level 2 – Requires level 2 (or higher) password in order to access]
Sub-Menu
Setting
Command
DrainSchedule: OccupSchedule:
Default –
Range
00:00 Monday to Sunday Event 1 to Event 6
00:00 Monday to Sunday Event 1 to Event 6
RoomTempDemandLoop [3]
OccStp:
40.0%
min: 0.0%, max: 100.0%
UnocStp: VacantStp:
30.0% 20.0%
TempSupplyHLLoop [3]
min: 0.0%, max: 100.0% min: 0.0%, max: 100.0%
OccStp:
80.0%
Control
UnocStp: VacantStp:
30.0% 20.0%
RoomRHDemandLoop [3]
min: 0.0%, max: 100.0% min: 0.0%, max: 100.0% min: 0.0%, max: 100.0%
OccStp:
UnocStp: VacantStp: RHSupplyHLLoop [3]
40.0%
min: 0.0%, max: 100.0%
30.0% 20.0%
min: 0.0%, max: 100.0% min: 0.0%, max: 100.0%
OccStp:
System
UnocStp:
VacantStp: UTCOffset: -300min DaylightSavings: No
LocalDateTime:
80.0%
min: 0.0%, max: 100.0%
30.0%
20.0%
-300min
No YYYYMM-DD 00:00:0
min: 0.0%, max: 100.0% min: 0.0%, max: 100.0% min: -720min, max: 720min No, Yes
Description/Notes
Create a customized draining schedule with up to six events per day.
Create a customized occupancy schedule with up to six events per day.
Only appears if there is a single zone and ControlProfile is set to an
internal control mode or DemandSrc is set to TempRoomDemand. Define the room
temperature demand setpoint value used during Occupied state. Only appears if
there is a single zone and RoomTempDemandLoopStptSrc is set to Internal.
Define the room temperature demand setpoint value used during Unoccupied
state. Define the room temperature demand setpoint value used during Vacant
state. Only appears if there is a single zone and ModHLProfile is set to an
internal control mode or HighLimitSrc is set to TempSupplyHLDemand. Define the
supply high limit temperature demand setpoint value during Occupied state.
Only appears if there is a single zone and TempSupplyHLLoopStptSrc is set to
Internal. Define the supply high limit temperature demand setpoint value used
during Unoccupied state. Define the supply high limit temperature demand
setpoint value used during Vacant state. Only appears if there is a single
zone and ControlProfile is set to an internal control mode or DemandSrc is set
to HumRoomDemand.
Define the room humidity demand setpoint value used during Occupied state.
Only appears if there is a single zone and RoomRHDemandLoopStptSrc is set to
Internal.
Define the room humidity demand setpoint value used during Unoccupied state.
Define the room humidity demand setpoint value used during Vacant state. Only
appears if there is a single zone and ModHLProfile is set to an internal
control mode or HighLimitSrc is set to RHSupplyHLDemand. Define the supply
high limit humidity demand setpoint value during Occupied state. Only appears
if there is a single zone and RHSupplyHLLoopStptSrc is set to Internal. Define
the supply high limit humidity demand setpoint value used during Unoccupied
state. Define the supply high limit humidity demand setpoint value used during
Vacant state.
Configure the value of the UTC offset.
Select whether to enable daylight savings or not.
Configure the current date and time.
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Page | 34
SKH4 High-Pressure Atomizer
Installation Instructions and User Manual
Interface
LocalDisplay [5] BacklightLvl: Contrast: MenuTimeout: KeypadBuzzer Language: Units:
25% 10% 300sec Inactive English Imperial
min: 0%, max: 100% min: 0%, max: 30% min: 30sec, max: 1800sec Inactive, Active English, French, Spanish Metric, Imperial
Select the backlight level of the LCD screen.
Select the contrast level of the LCD screen.
Set the value of the local menu timeout. Select whether to enable or disable
the key press sound. Select the device language. Select whether to use a
metric or imperial system of units for the local device.
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Page | 35
SKH4 High-Pressure Atomizer
Installation Instructions and User Manual
Menu – Service [Level 3 – Requires level 3 (or higher) password in order to access]
Sub-Menu
Setting
Status
OnTime: ServOnTime: Stage1 to 6 [5] CycleCount: RunTime: OnTime:
IdleTime:
DrainTime:
Drain1 to 6 [1] CycleCount:
Command Request:
Default 0.00hr 0.00hr
Range ( indicates no configuration;
display only)
Description/Notes
Displays the total operating time of the unit. Displays the operating time of
the unit, since the last servicing.
0
0.00hr
0.00hr
0.00hr
0sec
Displays the total cycle count of the stage valve.
Displays the total runtime of the unit.
Displays the total operating time of the unit.
Displays the amount of time the humidifier can remain in standby mode until an
automatic drain cycle is performed.
Displays the frequency of the drain cycle. In general, a more frequent drain
cycle is required as the water hardness level rises. The drain cycle setting
does not affect the AFEC system.
0 None
- None, ResetAlarms, ResetServCnt
Drain,
Displays the total cycle count of the drain valve.
Perform one of the following actions for the humidifier: reset warning alarms,
initiate a drain cycle, reset service counters.
DiagState:
- (Off, On)
Displays the diagnostic state
Set the status of the diagnostic state.
DiagCmd: DiagPeriod: DiagTimer: Diagnostic Stage1Enable: Stage2Enable: Stage3Enable: Stage4Enable: Stage5Enable: Stage6Enable:
- (Spray, Drain) (min: 1min, max: 60min) (min: 0sec, max: 3600sec) * (No, Yes)
- (No, Yes)
- (No, Yes)
- (No, Yes)
- (No, Yes)
- (No, Yes)
Displays the diagnostic command
Displays the maximum diagnostic time to remain active
Displays the remaining diagnostic time to remain active
Displays whether diagnostic stage 1 is active
Displays whether diagnostic stage 2 is active
Displays whether diagnostic stage 3 is active
Displays whether diagnostic stage 4 is active
Displays whether diagnostic stage 5 is active
Displays whether diagnostic stage 6 is active
Set the status of the diagnostic command. Set the value for the diagnostic period. Set the value of the diagnostic timer. Set the status of the stage 1 diagnostic enable. Set the status of the stage 2 diagnostic enable. Set the status of the stage 3 diagnostic enable. Set the status of the stage 4 diagnostic enable. Set the status of the stage 5 diagnostic enable. Set the status of the stage 6 diagnostic enable.
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Page | 36
SKH4 High-Pressure Atomizer
Installation Instructions and User Manual
Menu – Installation [Level 4 – Requires level 4 (or higher) password in order to access]
SubMenu Quick Config
Control
Setting ZoneA to D [1]:
StgOpenDelay: Stage1 to 6 [6]:
Capacity: Zone: Drain: MaxOnTime: PauseTime: DrainVolume:
ControlProfile:
Default
0 500l/h ZoneA Drain11 0sec 15sec 10l
ExternAnalog
ModHLProfile: UnitControl [4] NtwkTimeout:
Disabled 900sec
DemandSrc:
None
HighLimitSrc:
None
BinDemandSrc:
None
RoomTempDemandLoop [6]
PropGain: ITime: DTime: PropBand:
20.0 0.0sec 0.0sec 5.0%
TempSrc:
None
StptSrc: TempSupplyHLLoop [6]
None
PropGain:
10.0
Range (* indicates no configuration;
display only)
Description/Notes
min: 0, max: 30
Set the value of the stage open delay.
min:0l/h, max: 3000l/h ZoneA, ZoneB, ZoneC, ZoneD, ZoneE, ZoneF Drain7,
Drain8, Drain9, Drain10, Drain11, Drain12
min: 0sec, max: 1200sec
min: 0sec, max: 1200sec
min: 0l, max: 9999999l
ExternAnalog, ExternNetwork, InternAnalog, InternNetwork, TRUB, Custom
Disabled,
ExternAnalog,
ExternNetwork, InternAnalog,
InternNetwork, Custom
Set the value of the capacity.
Select the zone.
Select the drain.
Set the maximum value of the operating time of the unit.
Set the value of the pause time of the unit.
Set the volume of water that is drained from the chamber. Select a
preconfigured control mode profile for the modulating humidity demand. Select
the Custom option to configure individual settings. (Network option only
applicable for BACnet models.) Select a preconfigured control mode profile for
the modulating high limit demand. Select the Custom option to configure
individual settings. (Network option only applicable for BACnet models.)
min: 1sec, max: 900sec
None,
ControlInput,
HumRoomDemand,Network,
TempRoomDemand
None,
ControlInput,
RHSupplyHLDemand,Network,
TempSupplyHLDemand
None, BinaryExtDemand
min: 1.0, max: 200.0 min: 0.0sec, max: 900.0sec min: 0.0sec, max: 60.0sec min:
1.0%, max: 100.0%
None, TempRoom, Network, HRL
None, Internal, ControlInput
min: 1.0, max: 200.0
Define the amount of time the humidifier may attempt to connect to the BACnet
or Modbus network before it stops operating due to a communication error.
(Only appears if there is a single zone and ControlProfile and ModHLProfile
are set to InternNetwork or ExternNetwork.)
Select the humidity control demand source for modulating humidifiers. (Network
option only applicable for BACnet models.)
Select the humidity control high limit source for modulating humidifiers.
(Network option only applicable for BACnet models.)
Select the humidity control demand source for On/Off humidifiers.
Only appears if ControlProfile is set to an internal control mode and
DemandSrc is set to TempRoomDemand.
Set the value of the room demand proportional gain.
Set the value of the room demand integral time.
Set the value of the room demand derivative time.
Set the value of the room demand proportional band.
Select the reading source for the room temperature demand. (Network option
only applicable for BACnet models.)
Select the room demand setpoint source.
Only appears if ModHLProfile is set to an internal control mode and
HighLimitSrc is set to TempSupplyHLDemand.
Set the value of the supply high limit demand proportional gain.
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Page | 37
SKH4 High-Pressure Atomizer
Installation Instructions and User Manual
IntgrlTime: DrvtveTime: ProbBand:
0.0sec 0.0sec 10.0%
TempSrc:
None
Control
StpntSrc:
None
RoomRHDemandLoop [6]
PropGain: ITime: DTime: PropBand:
20.0 0.0sec 0.0sec 5.0%
RHSrc:
None
StptSrc: RHSupplyHLLoop [6]
None
PropGain: IntgrlTime: DrvtveTime: ProbBand:
10.0 0.0sec 0.0sec 10.0%
RHSrc:
StpntSrc: ControlInput [6] Signal:
ControlInput:
Min:
Physical IO
Max: Bias: SignalType: RoomRH [6] Signal:
RoomRH:
Min:
Max:
www.neptronic.com
None None
0.000V 0.0% 0.0% 100.0% 0.0% 0-10Vdc
0.000V 0.0% 0.0% 100.0%
min: 0.0sec, max: 900.0sec min: 0.0sec, max: 60.0sec min: 1.0%, max: 100.0%
None, SupplyHLTemp, Network None, Internal, ControlInput
min: 1.0, max: 200.0 min: 0.0sec, max: 900.0sec min: 0.0sec, max: 60.0sec min:
1.0%, max: 100.0% None, RoomRH, Network, HRL None, Internal, ControlInput
min: 1.0, max: 200.0 min: 0.0sec, max: 900.0sec min: 0.0sec, max: 60.0sec min:
1.0%, max: 100.0%
None, SupplyHLRH, Network None, Internal, ControlInput
Set the value of the supply high limit demand integral time.
Set the value of the supply high limit demand derivative time.
Set the value of the supply high limit demand proportional band.
Select the reading source for the supply high limit temperature demand.
(Network option only applicable for BACnet models.)
Select the supply high limit demand setpoint source.
Only appears if ControlProfile is set to an internal control mode and
DemandSrc is set to HumRoomDemand.
Set the value of the room demand proportional gain.
Set the value of the room demand integral time.
Set the value of the room demand derivative time.
Set the value of the room demand proportional band.
Select the reading source for the room humidity demand. (Network option only
applicable for BACnet models.)
Select the room demand setpoint source.
Only appears if ModHLProfile is set to an internal control mode and
HighLimitSrc is set to RHSupplyHLDemand.
Set the value of the supply high limit demand proportional gain.
Set the value of the supply high limit demand integral time.
Set the value of the supply high limit demand derivative time.
Set the value of the supply high limit demand proportional band.
Select the reading source for the supply high limit temperature demand.
(Network option only applicable for BACnet models.)
Select the supply high limit demand setpoint source.
- (min: 0.000V, max: 15.000V)
- (min: 0.0%, max: 100.0%)
min: 0.0%, max: 100.0%
min: 0.0%, max: 100.0% min: -10.0%, max: 10.0% 0-10Vdc, 2-10Vdc, 4-20mA, 020mA
Displays the value of the control demand analog input signal.
Displays the actual value of the control demand analog input.
Set the minimum value of the control demand analog input.
Set the maximum value of the control demand analog input.
Set the bias value for the control demand analog input.
Select the signal type for the control demand analog input.
- (min: 0.000V, max: 15.000V * (min: 0.0%, max: 100.0%) min: 0.0%, max: 100.0% min: 0.0%, max: 100.0%
Displays the value of the room humidity analog input signal.
Displays the actual value of the room humidity analog input.
Set the minimum value of the room humidity analog input.
Set the maximum value of the room humidity analog input.
Page | 38
SKH4 High-Pressure Atomizer
Installation Instructions and User Manual
Bias: SignalType: SupplyHLRH [6] Signal: SupplyHLRH: Min: Max: Bias:
SignalType: SupplyHLTemp [6] Signal:
SupplyHLTemp:
Physical IO
Min: Max:
Bias:
SignalType: RoomTemp [6] Signal: RoomTemp:
Min:
Max:
Bias:
SignalType:
System ResetFactory:
Extended Config
InstallationDate: AlarmBuzzer:
0.0% 0-10Vdc
min: -10.0%, max: 10.0%
0-10Vdc, 2-10Vdc, 4-20mA, 020mA
Set the bias value for the room humidity analog input.
Select the signal type for the room humidity analog input.
0.000V 0.0% 0.0% 0.0% 0.0% 0-10Vdc
- (min: 0.000V, max: 15.000V)
- (min: 0.0%, max: 100.0%)
min: 0.0%, max: 100.0%
min: 0.0%, max: 100.0%
min: -10.0%, max: 10.0% 0-10Vdc, 2-10Vdc, 4-20mA, 020mA
Displays the value of the duct or supply high limit humidity analog input
signal.
Displays the actual value of the duct or supply high limit humidity analog
input.
Set the minimum value of the duct or supply high limit humidity analog input.
Set the maximum value of the duct or supply high limit humidity analog input.
Set the bias value for the duct or supply high limit humidity analog input.
Select the signal type for the duct or supply high limit humidity analog
input.
0.000V
68.0°F [20.0°C] 32.0°F [0.0°C] 104.0°F [40.0°C] 0.00°F [0.00°C] 0-10Vdc
- (min: 0.000V, max: 15.000V)
- (min: -40.0°F, max: 30-2.0°F) * [min: -40.0°C, max: 150.0°C] Units: C, F
- (min: -40.0°F, max: 30-2.0°F) * [min: -40.0°C, max: 150.0°C] Units: C, F
- (min: -40.0°F, max: 30-2.0°F) * [min: -40.0°C, max: 150.0°C] Units: C, F
min: -18.00°F, max: 18.00°F [min: -10.00°C, max: 10.00°C] Units: °C, °F
0-10Vdc, 2-10Vdc, 4-20mA, 020mA
Displays the value of the duct or supply high limit temperature analog input
signal.
Displays the actual value of the duct or supply high limit temperature analog
input.
Set the minimum value of the duct or supply high limit temperature analog
input.
Set the maximum value of the duct or supply high limit temperature analog
input.
Set the bias value for the duct or supply high limit temperature analog input.
Select the signal type for the duct or supply high limit temperature analog
input.
0.000V 68.0°F [20.0°C] 32.0°F [0.0°C] 104.0°F [40.0°C] 0.00°F [0.00°C] 0-10Vdc
No
YYYY/MM/DD
Disabled
- (min: 0.000V, max: 15.000V
- (min: -40.0°F, max: 30-2.0°F) [min: -40.0°C, max: 150.0°C] Units: C, F (min: -40.0°F, max: 30-2.0°F) [min: -40.0°C, max: 150.0°C] Units: C, F (min: -40.0°F, max: 30-2.0°F) * [min: -40.0°C, max: 150.0°C] Units: C, F min: -18.00°F, max: 18.00°F [min: -10.00°C, max: 10.00°C] Units: °C, °F 0-10Vdc, 2-10Vdc, 4-20mA, 020mA
No, Yes
Normal, Disabled
Displays the value of the room temperature analog input signal.
Displays the actual value of the room temperature analog input.
Set the minimum value of the room temperature analog input.
Set the maximum value of the room temperature analog input.
Set the bias value for the room temperature analog input.
Select the signal type for the room temperature analog input. Select Yes in
order to reset the humidifier back to its original factory configuration
settings. WARNING: There is no way to recover previous configurations once the
device has been reset. Set the device installation date. Select whether to
enable or disable the alarm buzzer sound whenever there is a system warning.
This will not affect the Status Display LED.
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Page | 39
SKH4 High-Pressure Atomizer
Installation Instructions and User Manual
SysLogLevel:
CtrlSource:
Extended Config
PowerUpDrain CoolDrainMode CoolDrainTimer LoWatTempAlarm:
ServInterval:
RunWhileServiceAlarm:
ZoneAMAC: ZoneBMAC: ZoneCMAC: ZoneDMAC:
Debug
Pump Board Off Off 30min Alarm 1000hr
Allowed
1 2 3 4
None, Emergency, Alert, Critical, Error, Warning, Notice, Info, Debug Zone
controller, Pump Board, BMS Off, On Off, TimeLatch Min: 0min, max:60 Alarm,
Warning
min: 1000hr, max: 3000hr
NotAllowed, Allowed
min: 0, max: 127 min: 0, max: 127 min: 0, max: 127 min: 0, max: 127
Select the type of information to be stored on log file. (The humidifier must
be connected to an SD card.)
Select the control source.
Select Yes to perform drain on Power Up Select the control mode for the
cooling drain. Set the value of the cool drain timer. Select the status of the
low water temperature alarm. Set the time of operation before the humidifier
calls for servicing. Select whether to enable the unit to continue producing
steam, even when it is due for servicing. When set to Allowed, the unit will
continue operating even when a service alarm is active. Set the value of the
MAC address for zone A. Set the value of the MAC address for zone B. Set the
value of the MAC address for zone C. Set the value of the MAC address for zone
D.
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Page | 40
SKH4 High-Pressure Atomizer
Installation Instructions and User Manual
Menu – Integration [Level 5 – Requires level 5 password in order to access]
Sub-Menu
Setting
NtwrkOption:
Device [4] DeviceName: Location: Description: DeviceInstance:
HTTPServer [1] HttpServerUnits:
BACnetServer [3] Language: ListMode:
Units:
BACnetMSTP [10]
MaxMaster:
Network
MaxInfoFrames:
AutoBaud: BaudRate: MAC: RxValid: RxInvalid: RxLost: Tx: TxLost: BACnetIP [6]
RxValid: RxInvalid: RxLost: Tx: TxLost:
BACnetIPPort:
ModbusServer [1] Units:
Default BACnet
Range (* indicates no configuration;
display only)
BACnet, Modbus
Description/Notes
Select whether to connect to a BACnet MS/TP or Modbus RTU communication
interface on terminal TB2 of the humidifier PCB.
–
–
0153001 (0x000255a9)
Establish a name for the device. Establish a designated location for the unit.
Establish a brief description for the unit.
Define the device instance value.
Imperial
English Integrator Imperial
127
1
Yes 38400 001 0 0 0 0 0
0 0 0 0 0 47808
Imperial
Metric, Imperial
English, French, Spanish Integrator, Advanced, Factory Metric, Imperial
min: 1, max: 127
min: 1, max: 100
No, Yes 9600, 19200, 38400, 76800 *
-
-
-
-
- min: 0, max: 65535
Metric, Imperial
- min: 0, max: 65535
-
-
-
Select whether to use a metric or imperial system of units for the web server.
For models connected to the BACnet network.
Select the language for the BACnet server.
Select the category of BACnet objects to display.
Select whether to use a metric or imperial system of units for the BACnet
server.
Only appears if NtwrkOption is set to BACnet.
Configure MaxMaster value to increase network efficiency when there are less
than 127 devices on the network. For optimal efficiency, set value to the
highest MAC address in the MS/TP network.
Configure the maximum number of information messages the controller may
transmit, before it must pass the token to the next controller.
Enable or disable automatic baud rate detection.
Select the baud rate for data transfer.
Set the MS/TP network MAC address.
Displays information on the received communication frames for troubleshooting
purposes.
Displays information on the transmitted communication frames for
troubleshooting purposes.
For models connected to BACnet IP.
Displays information on the received communication frames for troubleshooting
purposes.
Displays information on the transmitted communication frames for
troubleshooting purposes.
Set the User Datagram Protocol (UDP) port number. BACnet port number is set by
default.
For models connected to Modbus.
Select whether to use a metric or imperial system of units for the Modbus
server.
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Page | 41
SKH4 High-Pressure Atomizer
Installation Instructions and User Manual
ModbusRTU1In [4] MAC: Autobaud:
PortConfig:
BaudRate: BACnetETH [5] RxValid: RxInvalid: RxLost: Tx: TxLost: ModbusTCPIP0In
[2] KeepAliveTimeOut:
ListeningPort: SMTP [7]
Network
SSL:
Port:
ServerAddr:
From:
To: Username: Password: Notify [3] Alarm:
Warning:
AppMsg:
Communica tion
IPSettings[10] DHCP:
1 Yes
No Parity, 2 Stop Bits 19200
min: 1, max: 247
No, Yes
No Parity, 2 Stop Bits Even Parity, 1 Stop bit Odd Parity, 1 Stop bit 9600,
14400, 19200, 38400, 57600
Only appears if NtwrkOption is set to Modbus. Set the Modbus MAC address.
Enable or disable automatic baud rate detection.
Select the Modbus communication port configuration.
Select the baud rate for data transfer.
For models connected to BACnet Ethernet.
0
0
0
0
0
Displays information on the received communication frames for troubleshooting
purposes.
Displays information on the transmitted communication frames for
troubleshooting purposes.
For models connected to Modbus TCP/IP.
5min 502
min: 1min, max: 1440min min: 0, max: 65535
Set the amount of time the communication stays open before connection is cut
out, when no signal is received from the device.
Set the communication port number. Modbus TCP port number is set by default.
Off
Off, On
25
25, 587
192.168.100.1 00 Current value
Current value Current value Current value
If turned to On, a secure socket layer will be used to encrypt the
communication between the device and the email server (Port value must be set
to 587 and Username and Password settings must be filled out). If turned to
Off, the default socket will be used (use Port 25 to use server without login
account or Port 587 if login details for email account have been entered).
If set to 25, server to server email transfer is enabled (can only be used if
SSL is set to Off). If set to 587, client to server email transfer is enabled.
Configure the server IP address for the email account.
Set the email address that will be sending the humidifier notification
messages.
Set the email address that will be receiving the humidifier notification
messages.
Set the login username for the email account.
Set the login password for the email account.
Off
Off, On
Off
Off, On
Off
Off, On
If turned to On, then the humidifier alarm messages will be sent to the email
configured in the SMTP sub-menu.
If turned to On, then the humidifier warning messages will be sent to the
email configured in the SMTP sub-menu.
If turned to On, then the humidifier event messages will be sent to the email
configured in the SMTP sub-menu.
Inactive
Inactive, Active
Select whether to enable Dynamic Host Configuration Protocol (DHCP) to automatically provide an IP address.
www.neptronic.com
Page | 42
RstIPSetting:
No
No, Yes
StaticAddress: StaticSubnetMask:
StaticDefaultGateway:
StaticDnsServer: ActualAddress: ActualSubnetMask:
ActualDefaultGateway:
ActualDnsServer: ETHSettings[1]
192.168.1.100 255.255.255.0 192.168.0.100 192.168.10.50 Current value Current value Current value Current value
EthernetMacAdd:
Current value *
SKH4 High-Pressure Atomizer
Installation Instructions and User Manual
Select whether to restart the IP module, in order to allow recent parameter
modifications to be effective. Configure the static IP address. Configure the
static subnet mask. Configure the static default gateway. Configure the static
DNS server. Displays the actual IP address. Displays the actual subnet mask.
Displays the actual default gateway. Displays the actual DNS server.
Displays the MAC address of the Ethernet interface. (Only applicable if using
an Ethernet connection.)
www.neptronic.com
Page | 43
SKH4 High-Pressure Atomizer
Installation Instructions and User Manual
List of Alarms and Warnings
Table 13 – List of Alarms
Display
Description
Alarm Reset
For each Zones
AirFlow (Zone A to D)
SupplyHighLimit (Zone A to D)
Interlock (Zone A to D)
Indicates that the airflow sensor (of Zone A to D) is open. Verify that the
signal from the airflow sensor is present at the controller’s input on the PCB
and verify wiring.
Indicates that the high limit item (of Zone A to D) is open. Verify that the
signal from the supply high limit sensor is present at the controller’s input
on the PCB and verify wiring.
Indicates that the interlock and the cut-out circuitry (of Zone A to D) are
open. Verify that the signal from the interlock sensor is present at the
controller’s input on the PCB and verify wiring.
Pump Unit Alarms
HighLimitCutout
Indicates that the high limit cutout has been activated due to a reading that exceeds the high limit setpoint. Ensure that the high limit humidistat is operating correctly and is not located too close in proximity to the distribution apparatus.
RelayFuse
Indicates that there is an issue with the printed circuit board fuse. Check the status of the fuse and replace it if defective.
Airflow
Indicates that the airflow sensor is open. This fault does not trigger the alarm contact (no message will be displayed) but will prevent the SKH4 from running. Verify that the signal from the airflow sensor is present at the controller’s input on the PCB and verify wiring.
SupplyHighLimit
Indicates that the high limit item is open. Verify that the signal from the supply high limit sensor is present at the controller’s input on the PCB and verify wiring.
Interlock
Indicates that the interlock and the cut-out circuitry are open. This fault does not trigger the alarm contact (no message will be displayed) but will prevent the SKVF from running. Verify that the signal from the interlock sensor is present at the controller’s input on the PCB and verify wiring.
MemoryCard (Warning)
Indicates that the SD card has been detected, but it is not operating correctly or is non-functional. Verify the SD card and replace if defective.
USB Device (Warning)
Indicates that the USB device has been detected, but it could not be read or is not operating correctly. Verify the functionality of the USB device and replace if defective.
WatHiTemp
Indicates that the water temperature is above the MaxWatTemp, which causes the humidifier to exit the spray state and perform a drain in order to lower the temperature and resume operation. If the temperature is still too high, an alarm will trigger and demand a manual reset.
WatLoTemp
Indicates that the water temperature is below the MinWatTemp, causes the humidifier to exit spray state.
OutHiPress
Indicates that the water pressure has raised above the MaxHighPress, causes the humidifier to exit spray state.
OutLoPress
Indicates that the water pressure has fallen below the MinHighPress, causes the humidifier to exit spray state.
InLowPress
Indicates that the low-pressure switch is open for the time greater than WaterInletPressDelay during the operation of the humidifier.
WaterLeak
Indicates that a water leak has been detected. Verify the water line for signs of leaks and ensure that all piping and water connections have been properly installed and secured.
Config
Indicates that the configuration is not valid in factory settings. For example, at least one stage is not enabled, or a drain stage is not enabled.
NtwkCtrlState
Indicates that the communication attempt to the BMS server has exceeded the delay defined by the NtwkTimeout setting. Verify the wiring between the humidifier and the BACnet or Modbus network and ensure proper connection. (Only applicable for units connected to BACnet or Modbus).
ServiceDue
Indicates that the due date for servicing the SKH4 unit has arrived. See Servicing and Maintenance section on page 55 for details.
- Use the ResetAlarms function in the Request setting (see page 36). ** Use the ResetServCnt function in the Request setting (see page 36).
Automatic Automatic Automatic
Automatic Automatic Automatic Automatic Automatic Automatic Automatic Manual
Manual Manual Manual Automatic Manual Automatic
Manual
Manual ***
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SKH4 High-Pressure Atomizer
Installation Instructions and User Manual
Distribution Installation
Refer to Neptronic’s guideline in Space Mist Humidification Design for
additional information and recommendations on the design of a hydraulic
distribution network. Consult the respective design guides for each of the
three distribution techniques.
Spraying in Space (Standard)
An in-space hydraulic network is made up of piping that starts at the stage
valve and goes towards the drain valve. Along this run of pipe, single
nozzles, or fan-assisted distributors (optional), can be placed in order to
spray directly into the area.
· Plan a location that is easy to access and permits easy inspection and
servicing of the nozzles. · The hose used must be stainless steel tubing or
flexible nylon hose. It must be appropriately sized for the flow
and the in-line pressure. · Hoses must be maintained/attached securely and
must not move when pressure is applied. · Do not install the ramp and nozzle
where failure of the system could cause damage to the building structure or
to other expensive equipment. · Ensure that the mist is not directed and or at
risk of condensing on any equipment.
Illustration 17 – Typical Installation with Rigid Nozzle Ramp
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SKH4 High-Pressure Atomizer
Installation Instructions and User Manual
High-pressure water outlets use a 3/8″ (DN10) or 1/2″ (DN15) flexible high-
pressure nylon hose (available upon request) connected to a push-to-connect
fittings (available upon request) with the respective stage and drain valves.
Illustration 18 – Typical Installation with Flexible Nylon Hose
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SKH4 High-Pressure Atomizer
Installation Instructions and User Manual
Spraying in Space with Fan-Assisted Distributors
· Plan a location that is easy to access and permits an easy inspection and
servicing. · Do not install the distributors where failure of the system could
cause damage to the building structure or to
other expensive equipment. · Ensure that the mist is not directed and
condensed on any equipment, especially the electrical equipment. · Respect
clearances for absorption specified in the fan assisted design guide.
Water high pressure outllet
T push-on fittings (not supplied)
Water inlet
All MDU s are connected in series along the flexible hose line
Illustration 19 – Fan-Assisted Distributors Typical Installation
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SKH4 High-Pressure Atomizer
Installation Instructions and User Manual
Ceiling Installation
To install the MDU to the ceiling, connect two metallic suspension cables (not
supplied) to the three rings. Verify the strength of the cables and ensure
that they can support the weight of the distributor (see table) before
commencing installation.
Y-fit suspension cable (not supplied)
Plumbing connection (not supplied)
Electrical connection
Suspension cable (not supplied)
Illustration 20 – ADU Ceiling Installation
Wall Installation
To install the distributor to the wall, fasten with screws (not supplied) to a
suitable location: · Check the solidity of the chosen support or wall (brick,
concrete, or stud partition wall) on which the distributor remote panel will
be mounted. · Drill holes matching the hole of the support into the support or
wall (anchors not supplied): · Ensure that the hole dimensions (diameter and
depth) adhere to the recommendations of the chosen anchors. If required, you
can install and then bolt the anchors. · Affix screws (not supplied) with a
minimum diameter of 0.23″ (6mm) to all fixation points. · Adjust the
positioning of the distributors and lock in place using the fixation hardware
on the distributors.
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Fan assisted Power Supply Connections
L1
120V 1PH
N
SKH4 STAGE TRUB MDU
SKH4 High-Pressure Atomizer
Installation Instructions and User Manual
Fuse
120VAC / 24VAC
Fuse
240V 1PH SKH4 STAGE TRUB FAN
MDUs
Stages Illustration 21 – 120V Power supply Connections
L1
L2
Fuse
Fuse
240VAC / 24VAC
Fuse
Stages Illustration 22 – 240V Power supply Connections
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SKH4 High-Pressure Atomizer
Installation Instructions and User Manual
Spraying in Duct
· Plan a location that is easy to access and permits an easy inspection and
servicing of the nozzle. · Do not install the ramp and nozzle where failure of
the system could cause damage to the building structure or
to other expensive equipment. · Ensure that the mist is not directed and
condensed on any electrical equipment. · Construct the drainpipe in such a way
that there is no water accumulation and stagnation. · The wet section of the
duct must be constructed in stainless steel in order to prevent corrosion and
must be
equipped with a pan drain outlet in order to remove any water residue. See
guide for more details.
Illustration 23 – In Duct Distribution
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SKH4 High-Pressure Atomizer
Installation Instructions and User Manual
Optional Remote Valve Panel (RVP)
WARNING: Risk of electric shock. Disconnect the appliance from the electric
supply before commencing installation.
An optional remote panel serves two purposes. The first is to allow a
connection for the fan-assisted distributors and a connection to the control
wire to start the fan before the spraying action. The second is to allow for
valves to be placed outside of the enclosure, to minimize the length of piping
during installation. Control signal wires are connected from the pump unit’s
PCB to the relays in this electrical panel in order to remotely activate the
solenoid valves.
RVP Dimensions
Illustration 24 – Remote Valve Panel
Illustration 25 – RVP Dimensions Table 14 Remote Valve Panel (RVP) Dimensions & Weight
Model
RVP 0 RVP 2 RVP 4 RVP 6
A 15 (381)
Dimensions in (mm) B 15 (381) 20 (508) 25 (635) 30 (762)
C 4 (101)
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SKH4 High-Pressure Atomizer
Installation Instructions and User Manual
Location
· Plan a location that is easy to access and permits an easy inspection and
servicing of the RVP panel. · Do not install the RVP panel where failure of
the valve could cause damage to the building structure or to
other expensive equipment. · Ensure that the location is ventilated
appropriately and that the ambient temperature is less than 86°F (30°C).
Positioning
· There is no minimum clearance required for safety purposes. · Provide a
minimum clearance of 31″ (0.80 m) in front of the RVP panel, in order to allow
access to the
connections and servicing. · It is recommended (but not mandatory) to allow
some clearances on both sides and on the top of the RVP
panel for ease of service.
Picture of RVP with clearances and keyhole wallmounting
31″ (0.8m)
Illustration 26 – RVP Clearance
Wall Mounting
· Use the keyholes located on the back of the RVP panel. · Check the solidity
of the chosen support or wall (brick, concrete, or stud partition wall) on
which RVP panel is
mounted. · Drill holes for the upper anchors (holes with keyholes) into the
support or wall, as per dimensions specified in
the below table (anchors not supplied): · Ensure that the hole dimensions
(diameter and depth) adhere to the recommendations of the chosen anchors.
If required, you can install and then bolt the anchors. · Affix two screws
(not supplied) with a minimum diameter of 0.23″ (6mm) to the top keyholes.
Leave a
clearance between the head screws and the wall to permit the mounting of the
RVP panel. · Hang the RVP panel on the two screws. Based on the size and
weight of the RVP panel, you may need the
assistance of another person. · Tighten the screws to secure the RVP panel
once it is positioned on the upper screws. · Install and secure two screws
(not supplied) onto the bottom screw holes of the RVP panel.
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SKH4 High-Pressure Atomizer
Installation Instructions and User Manual
Start-Up Procedure
Once the installation is complete, follow this start-up procedure in order to
ensure that the SKH4 High-Pressure Atomizer is ready for normal operation. We
strictly recommend following this procedure in order to avoid any anomaly
resulting from inaccurate installation of the components.
Initial verification and start-up must be carried out by suitably qualified
personnel.
Initial Verification
Clearance
Ensure that the humidifier cabinet is installed in a location where it can be serviced correctly.
2. Ensure that the pump station is installed in a temperature-controlled environment of less than 86°F (30°C). Verify that the pump station is fixed securely to the ground and that it remains stable.
Mechanical 3. If an in-duct spray system is used, ensure that the nozzle rack
assembly is correctly
installed within the AHU.
4. If an MDU or ADU is used for in-space spray distribution, ensure that it is correctly installed and secured onto the ceiling.
5. Verify that the pump station water connections are installed properly:
a) Ensure that water is supplied to the humidifier and that an isolation valve
is installed on the water line. With the water isolation valve turned on,
verify that there are no apparent leaks.
b) Ensure that the pan drain outlet is properly connected to a flexible hose
and that it is directed towards an open drain. Verify that the water drainage
is not obstructed. c) If using a SS pump, bleed the pump of air before
starting the unit.
6. Verify that the zone hydraulic connections are installed properly:
Hydraulic
a) If an in-duct spray system is used, ensure that all nozzle ramps are
properly connected and assembled onto the rack assembly.
b) If a standard in-space spray distribution system is used, ensure that all
nozzles within the ramp have been connected in series and that they are
properly secured.
c) If an in-space fan-assisted spray distribution system is used, ensure that all units are connected in series and that they are properly secured.
d) Ensure that isolation valves are opened on all the fan-assisted distributors
7. Verify that the power supply (voltage) conforms to the appliance name plate on the side of the humidifier.
8. Ensure that the Interlock is properly connected to the controller. If Interlock is not used, verify that a jumper is connected between terminals TB3 1&4.
Electrical
If a room or duct humidistat is used, verify that it is fixed securely to the wall or duct and to the pump unit, respectively, and ensure that it is properly connected to the
controller. Verify that the setpoints and the address are properly adjusted.
10. If a TRUB is used, verify that it is fixed securely to a support or wall located within the desired zone and ensure that it is properly connected to the pump unit. Verify that the setpoints are properly adjusted. Refer to the TRUB documentation for more information.
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SKH4 High-Pressure Atomizer
Installation Instructions and User Manual
Diagnostic mode
If required, a diagnostic mode is accessible through the Service menu, the
diagnostic mode allows manual activation and override of the SKH4. It’s
possible to activate each stage without any demand to the pump. This allows
for inspection, purging the air out of the line and validation of operation of
a particular stage.
Alarms and interlocks coming from zone(s) are bypassed while manual override
is active.
Enter the mode from the Service, Diagnostic mode. The function allows to
select the action to drain or to pressurize the stage(s) selected below, and
then to turn the action on or off.
First, select the command type (Spray or Drain), set desired time for test,
and enable or disable the desired stage(s) manually. To turn on the action,
change the DiagState to ON. Going out of the menu, changing Command type or
the end of Period will turn the State back to Off. The exiting of the
diagnostic state sends the SKH4 to its regular Off state.
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SKH4 High-Pressure Atomizer
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.
Before performing any servicing on the unit, turn off the disconnect and use
Lock Out procedure.
Damage to the other parts of the SKH4 system are most often caused by particles or debris in the water. Ensure constant quality of water supplied to the unit. Inspection of parts of the pump unit and of the network of distribution is necessary to ensure the proper function of the system and to prevent leakage.
Preventative Maintenance
Component
Pressure manometers
Hydraulic pipes
Nozzles
Distributor fan (option) Droplet separator Duct Distributor (option)
How Often is Maintenance Required
Every 2000 hours
Every 2500 hours (up to 5000 hours depending
on condition)
Maintenance Steps
– Inspect the high pressure and low pressure manometers in front of the unit
and verify that the pressures match the ones indicated
under the pressure settings in the menu Menu – General [Level 1 – No password
required] page 31.
– If the pressure is not the same, replace the high pressure or low pressure
manometer.
– With the unit turned on, check for leaks coming from the water supply inlet,
high-pressure outlet and zone distribution piping. – If a leak is found,
replace the leaking pipes or fittings.
– With the unit turned on, verify if the nozzles are blocked during normal
operation. – If the nozzles are blocked, disassemble them for inspection: a)
If blocked by large particles, remove the particles and reassemble the
nozzles. b) If blocked by the presence of mineral deposit or scale, replace
the nozzles.
– With the unit turned on, verify whether the fan is operating correctly and
without any problems. – Replace the motor fan if faulty operation is observed.
– Verify that the droplet separator is not being obstructed by scale. – If
there is scale, proceed to de-scale the droplet separator as per the steps
described in the De-scaling the Droplet Separator section.
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SKH4 High-Pressure Atomizer
Installation Instructions and User Manual
Preventive Maintenance (continued)
Component
Stainless Steel pump (SKH4-XXXXS models)
Brass pump (SKH4-XXXXB models)
How Often Maintenance is Required
Every week
Maintenance Steps
Visual inspection for the absence of water leaks. Verify that nominal pressure
is normal for your system. Loss of pressure can be an indication that the
distribution network needs servicing or the pump. Pump noise that degrades is
also an indicator that maintenance is required. Removal of the pump to inspect
the parts and replacing the O-ring is necessary to ensure the life of the
pump. A replacement seal kit is available from the Neptronic factory. Contact
customer service for the kit and detailed instructions.
Every 8000 hours
Disassembling and inspecting the pump: – Cut off the water supply and disconnect the hoses from the inlet and outlet of the pump. – Unscrew the fasteners of the bell housing from the motor and remove the pump from the bell housing. – Perform the disassembly of the pump on a clean work bench in order to prevent any contamination with particles or chemicals. – Follow the guide available from Neptronic. – Inspect all parts for wear or scratches
Reassembly – Lubricate all threads with a PTFE type lubricant. – At reassembly, lubricate all parts with clean filtered water. – Follow the guide for the reassembly and replacement of the seals with the parts from the kit. – Fastened to the bell housing, add the coupling, and place it back onto the motor, ensuring that the couplings mesh together.
Every week
Every 500 hours
Every 2500 hours (up to 8000 hours depending on condition) Every 5000 hours
(up to 16000 hours depending on condition)
Restarting the unit: – Follow the steps outlined in the start-up section to
restart the humidifier and ensure that it is operating correctly before
resuming normal operation.
Visual inspection of the oil level through the sight glass, ensuring absence
of water mixed in the oil and absence of any oil leaks. Ensure that nominal
pressure is normal for your system. Loss of pressure can be an indication that
the distribution network needs servicing or the pump. Pump noise that degrades
is also an indicator that maintenance is required.
Oil change (~10min) – Unscrew both caps with a pan underneath the pump in
order to catch the oil. Inspect the oil for debris or particles in it; if
found, it can be an indicator of damage to the pump. – Screw back the bottom
cap and fill the oil reservoir to at least the middle of the red dot. – Screw
back the top cap. – Dispose of the oil properly according to the local
regulations.
Seal replacement (~60min) – Refer to the detailed guide provided with the seal
replacement kit from Neptronic.
Valve replacement (~60min) – Refer to the detailed guide provided with the
seal replacement kit from Neptronic
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SKH4 High-Pressure Atomizer
Installation Instructions and User Manual
Nozzle Cleaning
The SKH4 nozzles will eventually get clogged by the accumulation of scale
and/or particles inside the tubing, resulting in a blocked or leaking nozzle
which will require cleaning or replacement of the nozzle.
· A blockage of the nozzle will require cleaning the nose (#1) and plunger
(#3). · A leakage will require the cleaning of the plastic ball (#4) and the
seat inside of the body (#5). · Parts (#7,8 and 9) are optional PE filters and
must be replaced whenever clogged. · The nozzles can be cleaned using light
descaling agents such as acetic acid (vinegar) and a plastic brush.
Nozzle nose O-Ring Plunger
Spring-load Viton ball
Nozzle body
O-Ring PE filter
Filter body
O-Ring Illustration 27 – Nozzle Parts List
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SKH4 High-Pressure Atomizer
Installation Instructions and User Manual
De-scaling the Droplet Separator
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. · Ensure that the air system (central air or
ventilation system) is stopped. · Ensure that the SKH4 is stopped.
CAUTION: When working with de-scaling solutions, always wear appropriate
personal protective clothing, protective gloves, and eye protection.
Step 2 – Dismantle the Droplet Separator · Turn off and isolate electrical
supplies to the unit. · Remove all media cassettes.
Step 3 – Prepare the De-scaling Solution
CAUTION: Risk of emanation of gas irritants, ensure to perform these tasks in
a well-ventilated area. It is recommended to perform the following steps
outside. · Mix the de-scaling solution according to the manufacturer’s
recommendations. · Use a clean container of a suitable size to completely
immerse each media cassette. · Ensure that a second clean container of a
suitable size is within reach and has been 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
descaling 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,
apply the de-scaling solution on all parts which are covered with scale.
Step 5 – Rinse · Lift the individual cassettes out of the acid solution, while
allowing any excess de-scaling solution to drip, and directly submerse them
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 and media
frames on the droplet separator. · Reconnect the power supply.
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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)