RAIN HARVESTING WFRW23 Self Cleaning 2 Stage Filter System Slim Installation Guide

June 10, 2024
Rain Harvesting

RAIN HARVESTING WFRW23 Self Cleaning 2 Stage Filter System Slim

RAIN HARVESTING WFRW23 Self Cleaning 2 Stage Filter System
Slim

PRODUCT DETAILS

This whole of house system features two-stage filtration for longer cartridge life and great long term flow rate and filtration performance.
Stage 1 – The 90 micron sediment filter also includes a self cleaning, back- flush function for easy maintenance. Stage 2 – 10 micron m

Code Size Country
WFRW23 10″ Australia
WFRW123 10″ USA
WFRW23 10″ New Zealand

Installation

WHAT’S IN THE BOX?
  • Filter Housing
  • Pre Filter Self-Cleaning Cartridge Stainless Steel Net Catridge
  • Filter Cartridge(s) 0 Multi-Action Filter Cartridge
  • Housing Ring Spanner
  • Wall bracket & screws
  • Cartridge Centering Device
  • Discharge Kit
TOOLS/MATERIALS YOU MAY REQUIRE
  • Tape measure
  • Marker pen
  • Pipe cutters
  • Deburring tool
  • PTFE (Teflon thread tape)
  • 2 Threaded adaptors (Isolation valve and refer to installation layout and existing pipework for further information.)
  • Adjustable wrench
  • Screw driver
  • Drill
  • Anchors (for mounting bracket)

CAUTION: Do not use with water that is microbiologicallly unsafe or with water of unknown quality without adequate disinfection before or after the system. Systems certified for cyst reduction may be used on disinfected water that may contain filterable cysts. If not properly maintained, the use of this system may increase the bacterial content of the water unless supplementary treatment is provided.

GENERAL REQUIREMENTS
  • Installation must be made in accordance with the Plumbing Code of Australia (PCA) by a licensed plumber only .
  • Observe the use limits indicated on the filter label.
  • If pressure exceeds use limits, protect with a pressure reducer.
  • Install an “anti-water hammer” system to protect the filter.
  • Keep away from light sources .
  • Keep away from excessive heat and cold (min . 4°C, max 45°C).
  • Only use original Blue Mountain Co cartridges. The use of non-original cartridges may void the warranty.
FEATURES

The Self Cleaning 2 Stage Filter System – Slim have been designed and constructed with an innovative self-cleaning pre-filter cartridge cleaning system that washes in counter-current to remove more substances deposited on the cartridge surface.

The self-cleaning filter has a nominal filtration of 90 micron with a stainless steel net.

FIGURE 1
When filtering element is clogged, it is simply cleaned by opening the valve on the bottom of the cup.
Installation

FIGURE 2
This operation generates a depression in the filter that pushes the ca rtridgedown, automatically reversing water flow from the inside (in counter- current) out of the cartridge.
Installation

FIGURE 3
This water flow in counted r-current carries particles and substances deposited on the cart ridge to the drain. Closing the valve after a couple of seconds returns pressure distribution to its in it ialcondit ions and the internal spring returns the ca trudge to its service position.
Installation

The above described operating modes and cleaning in counter-current requires a minimum 50kPa (7.25psi/0 .5bar) supply pressure.
The Self Cleaning 2 Stage Filter System – Slim feature a drain funnel, which is a device designed to protect potable water in water installations against pollution, to prevent pollution by backflow.

Cartridge Centering Device

Installation

A Cartridge Centering Device is included to help you easily and correctly position the replacement cartridge in the housing.

INSTALLATION
  • Before the installation, carefully lubricate the housing o-ring which is located at the bowl top .
  • Before the installation, check if the hydraulic system has been set-up according to local authority guidelines .
  • Install the products in sheltered areas and protect from freezing and excessive heat.
  • Connect the filter inlet and outlet connections (NB: outlet indicated by an arrow on the head) only to pipes with BSP type connections (cyl indrica l) / US – NPT tapered (conica l) connections. Use flexible tubes to connect the filter to the pipes if necessary .
  • Please refer to Installation Layout to check the correct location of isolating valves and pressure control devices .
  • The installation of any backflow prevention device must be in accordance with the Plumbing Code of Australia (PCA) and AS/NZS 3500.1 and comply with AS 2845.1:2010. Please refer to Installation Layout section: a dual check valve is recommended; a sing le check valve or non-return valve is not acceptable .
  • Internal water pressure in buildings should be limited to a maximum of 500 kPa (0.5 bar). The recommended pressure reducer must be Water Marked and/or compliant with AS/NZS 3500.1 and installed in accordance with the Plumbing Code of Australia (PCA).

WARNING: Water pressure above 500 kPa may damage connected products including water filters and will void the product warranty.

IN-OUT directions and vent-valve (VV) location

Installation

Only use PTFE thread seal tape to seal filter connections. Using other types of sealing material may void the warranty.

Installation

Installation

  1. Water mains
  2. Dual check valve
  3. Pressure reducer
  4. By-pass (optional or check local authority guidelines)
  5. Anti-water hammer device (expansion vessel)
  6. Filtering unit of any model
  7. Isolating Valve
  8. Other Utilities
Discharge kit

a. Screw the plastic nipple with o-ring to the threaded port for discharge on the bottom of the housing.
b. Screw on the ball valve to the nipple, making sure that the gasket of the valve is in place.
c. Screw the ball valve to the drain funnel, making sure that the gasket is in place.

WARNING: Ensure appropriate backflow prevention has been installed to comply with local and state government guidelines.

Connecting the filter discharge to drain

FIGURE 4
Using the drain funnel , connect the waste outlet to a suitable discharge point, ensuring to comply to al l state and local government guidelines.

INSTALLATION START-UP AND FIRST USE
  1. Turn-off water mains.
  2. Avoid all kind of tensions by using original wall brackets as a support
  3. The installation of a by-pass is recommended.
  4. Connect the inlet to the product’s side with the indication IN and the outlet to the side with the indication OUT.
  5. Connect to pipes using cylindrical (parallel) fittings or US – conical (tapered) fittings, possibly with flexible hoses.
  6. Use only sealing tape as a sealant for the connections.
  7. If the product is supplied without cartridge/s, unscrew the housing bowl from head and insert the cartridge/s, lubricate the a-ring, then screw the bowl to head and tighten with original spanners.
  8. Turn-on water mains.
  9. Unscrew the vent-valve and wait for air purge, then screw and tighten the vent-valve. After installation, slowly turn on a water supply (tap) downstream the installed unit and let the water flow for at least 5 minutes to flush the system before use.

WARNING: Make sure that there are no water leaks from the product, ensure you control the tightening between the housing head and the housing bowl. Continue checking that the tightening is good and there is no water leakage for 48 hours following the Installation and start-up. In case of leakage, open the housing, remove the a-ring from t he bowl, place a new o-ring and apply lubricant, then re-tighten the bowl to head and repeat the leakage check as above.
WARNING: For correct operation of this appliance, it is essential to observe the manufacturer’s instruction.

Product Specifications

Self Cleaning 2 Stage Filter System – Slim

Product Specifications

COUNTRY CODE A B C D
Australia WFRW23 107 228 390 1″ BSP
USA WFRW123 4.21″ 8.98″ 15.35″ 1″ NPT
New Zealand WFRW23 107 228 390 1″ BSP

All dimensions are in mm unless otherwise stated.

TECHNICAL SPECIFICATIONS

Self Cleaning 2 Stage Filter System – Slim

Filter Housing
TEMPERATURE RANGE WORKING PRESSURE
4 to 45 c 50kPa (7.25psi/0.5bar) to 830kPa (120psi/8.3bar)
BOWL BROKEN REPLACE THE BOWL AND O-RING
83 litres/min* 3/4″ Brass BSP (20mm) US – 3/ 4″ Plastic N PT

*Flow rate will depend on cart ridge selection, supply pipe pressure and size.

Thread Type

Parts

Included cartridges
  1. Prefilter Self-Cleaning Cartridge
    TEMPERATURE **RANGE**| MICRON RATING| MATERIAL| REDUCES| AVERAGE LIFE-SPAN
    ---|---|---|---|---
    4 to 45 c| 90 micron
    (nominal)| Stainless steel| Sediment| Self-cleaning
  2. Multi-Action Filter Cartridge
    TEMPERATURE **RANGE| MICRON RATING| MATERIAL| REDUCES| AVERAGE LIFE-SPAN**
    ---|---|---|---|---
    4 to 45 c| 10 micron
    (nominal)| Eco-friendly
    Carbon Block| Sediment, taste, colour, odour and chlorine| 3-6
    months

Maintenance

Thanks to the self-cleaning pre-filter, the Self Cleaning 2 Stage Filter System – Slim can provide long-last improved performance if maintenance is correctly and regularly performed following the instructions indicated in Routine Maintenance .

  • Periodically clean the housing with cold water and a soft sponge.
Routine Maintenance

STAGE 1 – Self-Cleaning pre-filter

Clean the filter cartridge in counter-current by opening the drain valve for 15/20 seconds. Washing the counter-current is performed as indicated in the Technical Specifications. If the cartridge is not perfectly clean after washing, repeat the operation with the same procedure one or more times until the desired cleanliness is reached. If acceptable cleanliness is not achieved for good filter operations, follow the Corrective Maintenance procedure described below.

STAGE 2 – Post-filter (Heavy Sediment; Self Cleaning 3 Stage Filter System – Slim model only) Replace the post-filter cartridge after 3-6 months or when a drop in downstream water pressure is observed.

STAGE 3 – Carbon filters (Multi-Action)

Replace the Multi-Action Filter cartridge at least every 3-6 months or if odors, colors or bad taste are noticed in the water or when a drop in downstream water pressure is observed.

Corrective Maintenance

Self-Cleaning pre-filter

Over time, routine cartridge cleaning may become difficult due to build-up on the cartridge net. In this case, cleaning is required as follows:

  1. Isolate water flow upstream from the filter
  2. Release filter pressure by opening the water tap downstream from the filter
  3. Open the filter unscrewing the cup from the head using the spanner (supplied)
  4. Remove the cartridge (wearing protective gloves to prevent scratches due to worn mesh)
  5. Clean the cartridge under a jet of cold water and use a soft brush to remove most impurities
  6. Insert the clean cartridge in the cup
  7. Screw the cup onto the head
  8. Following the procedure under “FIRST USE” to re-instate the filter

Heavy-duty Sediment and Multi-Action Filter Cartridge Replacement:
In the event of prolonged filter disuse, disconnect the device from the mains and remove cartridges, storing them in a cool and dry place until next use.

  • Flush system for 10 minutes after any period of non-use more than two days.
  • For a period of non-use of two weeks or more, it may be necessary to replace the cartridge/s.
Filter Cartridge Replacement
  1. Before opening the housing turn-off water mains.
  2. Release the pressure from the product by un-screwing the vent-valve.
  3. Open the housing unscrewing the bowl from head.
  4. Remove the used cartridge.
  5.  Wipe clean the filter housing with cold water and a soft sponge.
  6.  Open the new cartridge wrap and discard wrap. Carefully read the leaflet/sticker for directions and keep it for future reference.
  7. Insert the new cartridge and place it into the housing.
  8. Lubricate the a-ring with lubricant or change with a new a-ring.
  9. Tighten the housing bowl to the housing head using original spanners. Do not over-tighten.
  10. Turn on water mains.
  11. Wait for air purge from the vent-valve, then screw and tighten the vent-valve.
  12. Slowly turn on water supply (tap) downstream of the installed unit and let the water flow for at least 5 minutes to flush the system before use. rain harvesting.
TROUBLESHOOTING
PROBLEM CAUSE SOLUTION
Water does not run from taps Cartridge clogged Clean the cartridge

following the corrective maintenance procedure
Bowl broken| Replace the bowl and 0-ring
Cut-off valves and/or

By-pass closed

| Open the closed cut-off valve or by-pass
Unfiltered water runs from taps| Cartridge broken| Replace the cartridge
Spring broken| Replace the spring
By-pass valve open|
Cartridge gasket ruined| Plastic Paddle
The cartridge does not clean during self cleaning operation| Insufficient pressure in the bowl| Check the drain pipe: if pinched or bent, remove the problem;
Cartridge not correctly positioned in the bowl| Rotate the cartridge clockwise – counter-clockwise so that it moves vertically without strain in the bowl
Water leaks between the filter head and bowl| Bowl O-ring ruined| Bowl O-ring ruined
Water leaks from connections between pipes and from the sides of the filter| Sealant (PTFE tape) insufficient| Add a few turns of PTFE tape
Water leaks between the bowl and drain valve| Drain valve gasket damaged| Replace the gasket

Supported by RAIN HARVESTING

A common misconception about collecting rainwater is that all you need is a roof, a tank and some rain. This ‘tanking ‘ approach cannot always be relied on to deliver the volume – or quality – of water that you require. That is where we can help.
With some thought, your rain harvesting system can provide you with cleaner water and lots of it. Whether you’re completely reliant on tank water or wanting to keep the garden green, our simple steps will help you achieve your goal.
The Rain Harvesting approach to rainwater collection involves using tested andproven products to make quality rainwater available for use in and around your property. You don’t need much to get started and you will be surprised how easy it is to get the most out of your rainwater system.

HOW can we help you?

WARRANTY INFORMATION

Blue Mountain Co guarantees this product for 12 months from date of purchase.
Under this warranty we will replace the product or repair it free of charge. Claims must be received by Blue Mountain Co ([email protected]) within 12 months of the date of purchase. The benefits conferred by this warra nty are in addition to all other rights and remedies available in law in respect to the goods and services to which it relates. Our goods come with guarantees that can not be excluded under the Australian Consumer Law.
You are entire led to a replacement or refund for a major failure and for compensation for any other reasonable foreseeable loss or damage. You are also entitled to have the goods repaired or replaced if the goods fail to be of acceptable quality and the failure does not amount to a major failure.
DISCLAIMER This product specification is not a complete guide to product usage. Further information is available from Rain Harvesting Pty Ltd and from the Installation and Operating Instructions. This specification sheet must be read in conjunction with the Installation and Operating Instructions and all applicable statutory requirement. Product specifications may change without notice. © Rain Harvesting Pty Ltd

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For more information or to find out how we can help, just give us a call on +61 7 3248 9600

Or visit our website at
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Documents / Resources

| RAIN HARVESTING WFRW23 Self Cleaning 2 Stage Filter System Slim [pdf] Installation Guide
WFRW23 Self Cleaning 2 Stage Filter System Slim, WFRW23, Self Cleaning 2 Stage Filter System Slim, Filter System Slim
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