Neptronic WP Series Manual

WP Series - 2521 System Manual- 220407.docx
Reverse Osmosis Systems
WP Series
WP25211, WP25212, WP25213 Models
Installation Instructions and User Manual
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WP-Series Reverse Osmosis System
Installation Instructions and User Manual
www.neptronic.com
Page | - 2 -
Foreword
Neptronic Company Overview
Founded in 1976, we’re a private corporation that designs, manufactures and distributes products for the HVAC industry.
Our product line includes intelligent controllers, electronic actuators, actuated valves, humidifiers and electric heaters.
Our products are designed and manufactured by over 250 dedicated employees in our 7,500 m2 (80,000 ft2) state-of-the-
art facility located in Montreal, Canada. Using a vertical integration model, our entire manufacturing chain is under one roof,
from software and hardware development to SMT circuit board assembly, to sheet metal fabrication, to product testing,
ensuring that our products are engineered to last.
We currently hold several national and international patents and with our continued commitment to research and
development, we provide innovative products and technologies for the ever-evolving challenges of the HVAC industry.
Exporting over 70% 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 Reverse Osmosis for
the WP-Series humidifiers.
•The strict application of these instructions will ensure the conformity of your installation and operation as per
the manufacturer's recommendations.
•The application of these instructions is one of the conditions for the application of the warranty.
•The application of these instructions does not ensure, at any time conformity to procedures, regulation or local
codes, regarding electric installation and connection to local water supply.
This product has been declared to conform to the applicable Canadian and American safety standards and directives and
bear the ETL (c) & (us) mark. The Certificate for ETL is available, upon request to the manufacturer.
2022©: All rights reserved. This document cannot be reproduced totally or partially by any means whether, electronic,
mechanical, photocopy, recording or other, without prior written authorization of Neptronic.
Electricity
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.
Correct Use
Neptronic systems and its products are designed only for humidification use. Any other application is not considered
appropriate for the intended purpose. The manufacturer cannot be made liable for any damage resulting from incorrect use.
General Warranty
This product is subject to the terms and conditions described at http://www.neptronic.com/Sales-Conditions.aspx.

WP-Series Reverse Osmosis System
Installation Instructions and User Manual
www.neptronic.com
Page | - 3 -
Contents
General Information and Safety .............................................................................................................................................. 5
RO System Specifications....................................................................................................................................................... 6
Operational Notes................................................................................................................................................................ 6
WP Series Specification Sheet............................................................................................................................................ 7
Component Identification..................................................................................................................................................... 9
System Installation ................................................................................................................................................................ 10
Location ............................................................................................................................................................................. 10
Series 50 Controller .............................................................................................................................................................. 12
Specifications .................................................................................................................................................................... 12
RO Pump Wiring ............................................................................................................................................................ 15
Inlet Wiring ..................................................................................................................................................................... 15
Pressure Fault Switch .................................................................................................................................................... 15
Pretreat Switch............................................................................................................................................................... 15
Tank Full Switch............................................................................................................................................................. 15
System Operation ................................................................................................................................................................. 16
Series S50 RO System Controller Operation .................................................................................................................... 16
General Operation ......................................................................................................................................................... 16
Initial System Start-Up....................................................................................................................................................... 17
System Flush ................................................................................................................................................................. 17
Normal Operations ............................................................................................................................................................ 17
Shutdown........................................................................................................................................................................... 18
Maintenance Tips.................................................................................................................................................................. 19
When To Change Cartridge Pre-Filters............................................................................................................................. 19
When To Clean Membranes.............................................................................................................................................. 19
Membrane Cleaning and Preservative Cartridges:........................................................................................................ 19
Membrane Cleaning in RO System: .............................................................................................................................. 19
How do they Work?........................................................................................................................................................ 19
Acidic Cleaning Cartridge .................................................................................................................................................. 20
Cleaning Procedure ....................................................................................................................................................... 20
Alkaline Cleaning Cartridge............................................................................................................................................... 20
Cleaning Procedure ....................................................................................................................................................... 20
Storage Protection............................................................................................................................................................. 21
C-C4210-A88 Membrane Preservative Cartridge.......................................................................................................... 21
Flushing out Preservative/Re-start Procedure:.............................................................................................................. 21
Replacing Membranes .......................................................................................................................................................... 22
Procedure .......................................................................................................................................................................... 22
Replacing Prefilters ............................................................................................................................................................... 23

WP-Series Reverse Osmosis System
Installation Instructions and User Manual
www.neptronic.com
Page | - 4 -
Procedure .......................................................................................................................................................................... 23
Adjustment Of Pressure Switch ............................................................................................................................................ 24
Temperature Correction Factor............................................................................................................................................. 25
Operating Do's and Don’ts .................................................................................................................................................... 26
System Monitoring and Record Keeping .............................................................................................................................. 27
General Troubleshooting....................................................................................................................................................... 28
Component Part Numbers .................................................................................................................................................... 29

WP-Series Reverse Osmosis System
Installation Instructions and User Manual
www.neptronic.com
Page | - 5 -
General Information and Safety
Disclaimer: The information contained in this document is subject to change without notice. Applied Membranes, Inc.
shall not be liable for technical or editorial omissions made herein; nor for incidental or consequential damages resulting
from the furnishing, performance, or use of this material.
Power Connections: Use proper wiring and connection methods to satisfy local electrical codes.
•Connect this unit to a properly grounded connection in accordance with the National Electrical Code.
•Do not, under any circumstances, remove the ground wire or ground prong from any power plug.
•Do not the use extension cord or an adapter without proper consideration.
WARNING: Risk of electric shock. Disconnect the appliance from electric supply before
commencing servicing.
WARNING: Do not make any alteration or modification in the wiring or plumbing of the system.
This can result in damage to the system and cause injury to operators or users.
WARNING: Flush the system for at least 30 minutes before use to remove all chemicals present.
CAUTION: Chlorine will damage the membranes. A carbon pre-filter is installed to remove
chlorine from feed water. Care must be taken to change this carbon filter as needed to
accomplish effective chlorine removal. Excessive chlorine in feed stream may require additional
pre-filtration. The feed stream should be tested for chlorine at least once a week. Always follow
proper maintenance
CAUTION: Never let the system freeze. Freezing can damage the membrane and plumbing.

WP-Series Reverse Osmosis System
Installation Instructions and User Manual
www.neptronic.com
Page | - 6 -
RO System Specifications
Table 1 - RO System Electrical Specifications
Model Hz Motor HP Volts Phase
WP25211-116 60 1/3 115/230 1
WP25211-215 50 1/3 220/230 1
WP25211-216 60 1/3 220/230 1
WP25212-116 60 1/3 115/230 1
WP25212-215 50 1/3 220/230 1
WP25212-216 60 1/3 220/230 1
WP25213-116 60 1/3 115/230 1
WP25213-215 50 1/3 220/230 1
WP25213-216 60 1/3 220/230 1
Operational Notes
1. All systems rated at 77 Degrees Fahrenheit (25 Degrees Celsius) using 1000 ppm sodium chloride (NaCl)
solution. System capacity decreases significantly with decrease in feed water temperature (see temperature
correction chart).
2. Chlorine requirements for the feed water are as follows:
Thin-Film (standard) 0 ppm
CA (special order only) 0.1 ppm Minimum
3. Feed water must be filtered to a turbidity of less than 1 NTU.
4. System recovery (permeate to concentrate ratio) must be maintained at the recommended level. A higher than
recommended recovery will lead to a premature fouling of the membrane with a loss of permeate flow and permeate
quality.
5. Softened water should be used for the feed water to the RO system.

WP-Series Reverse Osmosis System
Installation Instructions and User Manual
www.neptronic.com
Page | - 7 -
WP Series Specification Sheet
Table 2 - WP Series Specification Sheet
MODEL WP25211 WP25212 WP25213
Rated Capacity, Permeate*
- Gal/Day 350 700 1000
- Gals/Min .24 .48 .70
- Cubic Meters/Day 1.3 2.7 3.8
Concentrate Flow (Reject)
- Gals/Min 1.1 1.2 .97
- System Pressure, PSI 100-150 100-150 100-150
- Degrees Celsius/ Degrees F 25/77 25/77 25/77
Pre-Filters
- Sediment Cartridge - 5 micron 1 1 1
- Carbon Cartridge - 10 micron 1 1 1
Pressure Switch Settings
- Low Pressure (for pump protection) 8 PSI 8 PSI 8 PSI

WP-Series Reverse Osmosis System
Installation Instructions and User Manual
www.neptronic.com
Page | - 8 -
Illustration 1 - WP Series Flow Schematic

WP-Series Reverse Osmosis System
Installation Instructions and User Manual
www.neptronic.com
Page | - 9 -
Component Identification
1
33
10 11
9
12a 54
2
12
12b
8 8
7
6
13
12
6
Illustration 2 – System Components
Table 3 - Component Description
# Item Description
1. Controller Power On/Off and Status Display
2. Inlet Solenoid Valve Normally closed. Opens when power is applied.
3. Cartridge Filter Pressure
Gauges (In-right/Out-left)
Measure the feed and effluent pressure of the cartridge filters. Pressure
difference determines when cartridge change-out is required.
4. Sediment Filter 5-micron sediment filter.
5. Carbon Filter 10-micron extruded carbon cartridge to remove chlorine and reduce organics
from the feed stream.
6. Low Pressure Switch Shuts the system down if the inlet pressure is lower than 8 psi (adjustable).
7. High Pressure Pump &
Motor Rotary pump and motor to pressurize the incoming water.
8. Membrane Modules RO Membrane elements housed in stainless steel pressure tubes.
9. System Pressure Gauges Measure the System (feed) and Concentrate (effluent) pressure of the
membrane modules.
10. Concentrate Control Valve To adjust system pressure. Must not be completely closed when the system is
in operation.
11. Recycle Valve To adjust and maintain adequate flow thru membranes.
12. TDS Monitor Monitors the feed and permeate water quality.
12a – feed sensor; 12b – permeate sensor
13. Permeate Check Valve Prevents backflow into RO module.

WP-Series Reverse Osmosis System
Installation Instructions and User Manual
www.neptronic.com
Page | - 10 -
System Installation
Location
Locate R.O. system with adequate clearance from walls and other equipment to enable membrane servicing. Run three
polyvinyl tube lines to the system as follows:
•Line #1: Connect raw water feed supply to the solenoid valve inlet in front of the first cartridge filter housing. This
will require ½ inch threaded pipe fitting and adaptor for the feed line. If desired, install an isolation valve in this
line; ensure the valve opening does not restrict the water flow.
Illustration 3 - Line 1 Connection
CAUTION: Pump and system performance will be adversely affected if the feed/suction line is
restricted.
•Line #2: Run a 3/8" line from the open end of the concentrate valve to a drain. Ensure that no liquids from other
lines in the plant flow back through this line.
Illustration 4 - Line 2 & 3 Connections
•Line #3: Run a 3/8" line from the permeate outlet to desired permeate storage container. Pressurized storage or
atmospheric storage tank options are available separately.
Note: The recirc flow line is pre-connected at the factory.
CAUTION: Be sure that all lines are connected before plugging in unit power.