FSA GT7-2K User guide

GT7-2K GT7-4K GT7-8K
Ultraviolet System Manual
Contents
Technical Overview......................................................................................................................................2
I. Important Notes .....................................................................................................................................2
II. Specifications........................................................................................................................................2
III. WARNING............................................................................................................................................2
IV. Before you Purchase/Open..................................................................................................................2
V. Space Requirements............................................................................................................................3
VI. What is Ultraviolet Sanitation...............................................................................................................3
VII. Example Applications .........................................................................................................................3
Installation Introduction.................................................................................................................................3
I. Site Preparation.....................................................................................................................................3
II. Mounting...............................................................................................................................................4
III. Installing Connections..........................................................................................................................4
IV. Filter Protection ...................................................................................................................................4
Commissioning & Start-up............................................................................................................................4
I. Quartz Thimble Installation.....................................................................................................................4
II. Installing the UV Lamp..........................................................................................................................4
Maintenance.................................................................................................................................................5
I. Replacement Parts.................................................................................................................................5
Troubleshooting............................................................................................................................................6

Technical Overview
I. Important Notes
For correct operation of this appliance, it is essential to observe the manufacturer’s instructions.
This system is designed for permanent fixed installation as a POE or POU treatment system. Installation
must be carried out by a qualified plumber or authorised technician to comply with Australian Plumbing
Codes. This system contains electrical components and plumbing components; Use caution and if
leaking occurs, turn the power off immediately before conducting maintenance or repair to the
system.
This appliance is not intended for use by persons (including children) with reduced physical, sensory or
mental capabilities, or lack of experience and knowledge, unless they have been given supervision or
instruction concerning use of the appliance by a person responsible for their safety.
Children should be supervised to ensure that they do not play with the appliance.
If the supply cord is damaged, it must be replaced by a special cord or assembly available from the
manufacturer or its service agent.
II. Specifications
Part Number
GT7-2K
GT7-4K
GT7-8K
Flow Rate @ 30mJ/cm²
3.8L/Min
30L/Min
50L/Min
Voltage
230V – 240V
Chamber
304SS
316SS
Max Pressure
700 kPa
Working Pressure
500 kPa
Lamp Power
14W
20W
40W
III. WARNING
This appliance must be installed into a single socket surge protector directly, before being connected to
a 240V 10A GPO. It must be a surge protector; Circuit Breakers and RCD’s are not suitable substitutes as
they do not protect the unit from power surges.
Danger: Dangerous electrical voltage is present inside the power supply box & chamber. These
instructions must be followed closely tom prevent serious personal injury. Ensure Eye protection is worn
when servicing and installing this unit to protect from harmful UV-C Radiation. This radiation can be harmful
to eyes and skin, UV lamps should only be used when properly installed in the irradiation chamber. The UV
lamp must not be operated outside the chamber.
•This unit must be used only for its intended purpose as described by the manufacturer.
•This unit must be installed in accordance with this manual
•The unit must be unplugged when; The unit is not in use, before fitting or removing any parts.
oThe unit must be electrically isolated before; Maintenance, Cleaning or Lamp Replacement
•The System will need to be de-pressurised before maintenance
•The UV lamp is designed for continuous usage to reach full disinfection capacity. Frequently turning
the system on/off will cause the lamp to reduce in effectiveness and may cause the lamp to fail.
IV. Before you Purchase/Open
The system requires specific working conditions to be met before installation, some general guidelines* are
listed below. If these conditions are not met, the system may not be suitable for the application and may not
function as specified.
These systems are designed for sanitising water supplies including mains water, tank water and in some
cases bore water and other water supplies. UV dosage ratings are based on UVT 94% and pre-filtered to
5uM. For applications on any water supply other than rain water tanks and mains water, please contact the
manufacturer to determine the correct system.

Feed Water Conditions
*Guideline Only*
Min
Max
Inlet Pressure
100 kPa
500 kPa
TDS
0 mg/L
2,000 mg/L
Iron
0 mg/L
0.02 mg/L
Manganese
0 mg/L
0.01 mg/L
Hardness
0 mg/L
150 mg/L
V. Space Requirements
The Ultraviolet systems are not IP rated and therefore are not suitable for external installation without
adequate weatherproofing or cover from the elements including but not limited to Rain/Moisture/High
Humidity & Frost. For external installations, the ballast must be installed in an IP 65 or better waterproof
enclosure (not supplied).
The System is supplied with either plastic (GT7-2K) or Aluminium mounting clamps designed for installation
on the wall (screws not included). It is ideal for the system to be mounted horizontally however if necessary,
vertical installation (open end to the top) is acceptable, the outlet should also be at the top.
The chamber must be mounted so that the chamber remains full of water at all times. The ports should be
facing up for a horizontal installation so that the air can escape from the chamber. You must allow enough
space to perform maintenance on the system. Allow 2x the length of the chamber at the open end to allow
the UV lamp & Thimble to be installed/removed. When mounting the chamber, consideration must be made
for the weight of the system fill of water due to the stresses associated with the plumbing fixings. The
stainless-steel chamber and surrounding plumbing must be earthed to prevent electrolysis causing
corrosion.
VI. What is Ultraviolet Sanitation
Ultraviolet sanitation works by breaking down the cell wall of a micro-organism allowing oxidation to occur
which in turn prevents the bacteria from multiplying until it is finally eradicated. Ultraviolet filtration is a
chemical free solution to water sanitation creating no by products in the water.
Ultraviolet systems are rated based on a dosage level of radiation into the water (mJ/cm²) with 30mJ being
the standard level of disinfection and up to 40mJ for Australian Drinking Water Guidelines.
For drinking water and domestic water use, a UV system should always be installed as the last point of
contact. For example, on a whole house filtration system, the filters should be installed before the UV
system. This effectively eliminates (or significantly reduces) the chances of re-contamination after the UV
unit.
VII. Example Applications
UV systems are utilised in many different ways. The main applications are; Household Water Filtration,
Commercial Water Treatment & Bacterial Pre-Treatment.
Household Water Filtration generally comes in 2 forms; Undersink Point of Use filtration or Whole House
Point of Entry filtration. Both applications are set up the same, with a pre filter followed by the UV system as
a final point of contact.
Commercial Water Treatment is common due to council regulations governing the supply or water or food
to the public. The law requires a form of sanitation in the filtration process and this is usually done in the
form of UV, RO or UF filtration.
Bacterial Pre-Treatment is sometimes required as a pre-treatment stage for ultra-fine (UF) or Reverse
Osmosis (RO) systems to prevent possible bio-fouling. UV can treat higher levels of bacteria to reduce the
chance of this occurring.
Installation Introduction
I. Site Preparation
When a suitable installation location is identified, you will need to determine if the system will be mounted
horizontally as recommended, or vertically if required. Allow adequate space for the ongoing maintenance
and pre-plan the plumbing so that the ports will be facing up.

II. Mounting
When mounting the system on a wall, mark out the approx. location of each wall bracket. Fix a bracket to
the wall and using a level and ruler, mark out the appropriate location for the second bracket. Brackets
should ideally have the pivot/hinge at the bottom and screw to close the bracket at the top. Hold the
Chamber in firmly to the brackets and they do up one of the clamps to secure the system. A second set of
hands can assist to make this easier.
III. Installing Connections
The UV systems are manufactured with male BSP threads either in 1” (GT7-8K) or ½” (GT7-4K). The
smaller GT7-2K unit is ¼” Female. Use appropriate plumbing fittings to install onto the chamber for
adapting to your plumbing.
IV. Filter Protection
As per Australian Plumbing Codes, a pressure limiting valve should be installed to limit the pressure to 500
kPa when the feed pressure exceeds 500 kPa. If Water Hammer is present, install a suitable Water
Hammer Arresting device.
Commissioning & Start-up
I. Quartz Thimble Installation
Due to the fragile nature of the quartz, care must be taken when handling and installing the thimble and
lamp. The below steps are for horizontal installations.
1. Remove the knurled nuts from either end of the SS chamber.
2. Wearing clean gloves or handling using a micro-fibre cloth, remove the thimble from the packaging
and check for any marks or blemishes. Insert the glass thimble into the chamber at the open end.
The thimble will need to go into the chamber by the domed end first. Centre the thimble in the
chamber so there are equal parts protruding from either end of the SS chamber.
3. Place an o-ring over each end of the glass thimble and seat the o-ring firmly against the thread as
shown beside.
4. The closed knurled nut is to go on the domed end and the open knurled nut goes at the open end of
the thimble. Loosely screw on both nuts until you feel resistance. Then simultaneously tighten both
nuts by hand until it is firmly hand tight. NOTE: Firmly hand tightening is sufficient to seal these
chambers without the use of tools – Do NOT apply thread tape or sealant glue to the end threads.
Caution: Overtightening the end nuts may cause the glassware to crack.
5. You can look through the open end of the nut to see if the o-ring is seated correctly. There will likely
be a slight gap between the end edge of the thimble and the recessed stop end of the knurled nut,
this is normal in most cases. If however there is no gap and the thimble is pressed hard up against
the stop end in the knurled nut, either the fittings are too tight OR the domed end of the thimble has
been pushed back inwards which causes the open end to protrude out of the chamber too far. If this
is the case, loosen the domed end and adjust the thimble position.
From this point, the water supply should be turned on to pressurise the chamber and identify if there are
any leaks from the plumbing connections or from the thimble. If leaking occurs from the thimble, it is
possible that it may only be a slow beading leak which will need to be rectified before installing the lamp.
For vertical installations, it is extremely important that there are no slow leaks as over time these will fill up
the thimble with water and cause a short in the lamp which can result in injury or damage to the lamp &
ballast which is not covered under warranty.
If any water is present on the thimble or chamber from the installation process, it will need to be thoroughly
dried before continuing with the installation.
II. Installing the UV Lamp
When, and only when the chamber and thimble are deemed to be water tight and free from leaking can the
lamp be installed. Handle the lamp only by the plastic end caps and support it by both ends.
1. Remove the lamp from its protective wrapping

2. Before the lamp is installed, the chamber and surrounding plumbing must be free from water or
leaks.
3. Insert the UV lamp into the quartz thimble through the open end. Leave the 4 pins of the lamp
exposed to allow connection to the ballast.
a. For vertical installation, you will need to connect the power supply first before lowering the
tube into the chamber. Do NOT drop the tube as this will cause the thimble to crack.
4. Firmly holding the white cap of the UV lamp, and the Black connection of the Ballast, push the
power supply connection onto the UV lamp pins, there is a long and short side of the pins so they
will only go into the power supply 1 way. Ensure that this is connected firmly so there is a good
connection.
a. At this point the lamp should be tested briefly to ensure it is in working order and the
connection is sound.
b. Keep your hands clear of the system and turn on the power for 5 seconds to allow the lamp
to fire. Do not look directly at the lamp without eye protection.
c. Confirm that the lamp lights up correctly, and the ballast is showing a green light to signify
that the lamp is running correctly.
d. Turn off the power.
5. Slide the lamp the remaining way into the chamber, pushing the rubber sleeve over the knurled nut.
NOTE: The rubber sleeve is not a waterproof seal and is not designed to seal the water in the
chamber, it is only to hold the lamp in place and protect from slight splashing water – this
does not make the chamber IP rated as waterproof.
6. Connect the earth wire to the lug on the bottom of the UV chamber as shown above.
7. Plug the ballast into a certified single socket surge protector, then into a 240V 10A GPO
8. Turn on the power supply to start the lamp.
a. If there is a green light, everything is running correctly
b. If there is a red flashing light with an audible alarm sounding, the ballast is indicating that
there is a problem with the lamp. This may be due to a faulty lamp, or the connection was
not sound during installation. Or there may possibly be a water leak that is shorting out the
lamp.
c. Fix the issue if possible or contact the supplier for further information.
Maintenance
I. Replacement Parts
Ultraviolet Lamps have an effective lifespan of 9000 Hours (12 Months). They are designed for continuous
run, not for intermittent operation.
Lamp Replacement | Every 12 Months
GT7-2K-Lamp 14W Replacement UV Lamp Suit GT7-2K
GT7-4K-Lamp 20W Replacement UV Lamp Suit GT7-4K
GT7-8K-Lamp 40W Replacement UV Lamp Suit GT7-8K
Quartz Thimble Replacement | Every 1 – 2 years depending on water quality
GT7-2K-Thimble 331mm x 23mm OD Single Open-End Thimble Suit GT7-2K
GT7-4K-Thimble 490mm x 23mm OD Single Open-End Thimble Suit GT7-4K
GT7-8K-Thimble 895mm x 24.5mm OD Single Open-End Thimble Suit GT7-8K

O-rings | Every 1 – 2 Years, must be changed if installing a new quartz
GT7-2NSF-OR O-Ring Suit 23mm Thimble (GT7-2K + GT7-4K)
GT7-8NSF-OR O-Ring Suit 24.5mm Thimble (GT7-8K)
Replacement Ballast | Replace after 5 years as a precaution
GT7-8K-PS 10W – 40W AU Certified (RCM) Ballast to Suit 4 Pin Lamps
Mounting Clamps
GT11-8G 1 pc Plastic Mounting Clamp Suitable for U/Sink Installation.
GT7-8-BRK 1 Pair Aluminium Mounting Brackets Suit GT7-4K GT7-8K
Troubleshooting
Problem
Possible Cause(s)
Solution
Leaking from
Chamber
1. O-rings Not Seated
2. Knurled Nuts too Loose
3. Damaged Thimble
1. If there is any issue with the o-rings in the way
they are seated this will need to be fixed. Remove
the thimble and repeat steps 3 – 5
2. If the nuts are not tight enough, the o-rings will not
have good enough compression and will cause a
leak. Slightly tighten up the nuts until a watertight
seal is achieved. It is better to tighten slightly at a
time to prevent overtightening.
3. If there is a crack or hole in the thimble, it will fill
from the inside out. Turn off the water, carefully
remove the thimble and replace with a new one. If
the thimble releases and shards of glass, this
chamber and downstream plumbing will need to be
thoroughly checked and any glass removed before
re-connection.
High Water
Temperature
1. Low Flow Rate
2. Oversized System
1. Particularly on the smaller model (GT7-2K) if
there are periods of low water usage or the water is
allowed to stand for long periods of time, the water
may be prone to heating up and may be either
lukewarm or hot. Generally, this only occurs on
systems that have a short distance between the
outlet and point of use. Whole house systems have
a larger length of cold plumbing pipes downstream
which will dissipate this temperature.
2. If the system is too large for the application, it is
likely that even with frequent water usage, the water
does not get a chance to cool down effectively. If
there are significant fluctuations in usage or flow
rates, it is good practice to install a thermal relief
valve (sold separately) on the outlet of the UV
chamber which can bleed water from the chamber
and keep temperatures below 56°C
Hot SS Chamber
1. Low Usage
1. As above, if the water is allowed to stand for
periods of time, the chamber will heat up naturally.
This is normal, however if the heating is excessive to
the point where it is causing damage to the chamber
or surrounding fixtures, a thermal relief valve (sold
separately) on the outlet of the UV chamber which
can bleed water from the chamber and keep
temperatures below 56°C
Ballast is alarming
1. Lamp Failure
1. Usually if the ballast is alarming and showing a
red flashing status indicating light, the lamp has
failed and will require replacement. Before replacing
a lamp, it is best to check firstly for an external
cause for lamp failure turn off the power then check

2. False Alarm
for; Water ingress from either rain, or leaks or any
signs of moisture or condensation in/around the
electricals. Due to the elevated temperature of the
lamp, high humidity may cause condensate to form.
If there are no signs of leaking, check for signs of
shorts or charring on the lamp connection with the
ballast. Lastly inspect the tube to see if there are any
dark patches or if the filaments are burnt out.
2. Sometimes the ballast may trigger a failure alarm
if the connection to the lamp is interrupted or
perhaps the connection is not solid enough. If the
above steps reveal no faults and the lamp is still
working (lighting up), turn the power off for 5
minutes, check connections and then turn it back on
to see if the fault clears.
No Lights on Ballast
1. Ballast Failure
2. Interrupted power
supply
1. In the event of a large surge it is possible that the
ballast failed. This can also occur from shorts and
water ingress. Check for signs of a short around the
lamp connection end. The ballast will need to be
replaced. The UV lamp may also have blown at the
same time, or could be the cause for the ballast
failure – for safety it is best to replace both the lamp
and ballast together. If it is within Warranty period
please contact the manufacturer for further
instructions.
2. Check the wall socket with a different electrical
appliance to check if the GPO is functioning. Also
check your circuit breaker to see if any switches are
off.
Lamp is working but
the ballast is
alarming
1. Faulty Lamp
2. Faulty Ballast
1. The lamp may be lighting up but not working at its
full capacity which may be caused by it not drawing
enough power from the ballast. The lamp will require
replacement. Turn the system off, check
connections and turn back on to see if it fixes the
alarm.
2. The ballast could have a problem with the lamp
failure protection and may require replacement. Turn
the system off, check connections and turn back on
to see if it fixes the alarm

Rev. 17/12/2020
Definitions
¹ Water Filter Systems are defined as systems designed for drinking water under our Water filter Systems, Reverse Osmosis Systems & Ultraviolet
Sanitation Categories – Excluding Cartridges and Shower Filters.
² Other products not manufactured or assembled by FSA are covered under the applicable manufacturer’s warranty.
³ FSA specifies recommended or required filter maintenance – see product information for further details. If a maintenance schedule is not
specified, filter maintenance is required at least once per 12 month period.
* Unsuitable environmental conditions include but are not limited to; Excessive hot or cold, Weather extremes, Moisture/Rain/High Humidity.
Ultraviolet SanitationSystem Warranty
General Warranty
Water Filter Systems¹ (Excluding consumables) Manufactured or Assembled² by Filter Systems Australia (FSA) are
covered under a 12-month Warranty Against Defects (Manufacturer’s Warranty). This warrants the water filter system
to be free from defects in material and workmanship for a period of 12 months from date of sale.
If applicable, FSA may cover the return freight in the form of a re-imbursement after the system has been inspected
and confirmed it is a valid warranty claim.
FSA will not cover any labour charge incurred by the consumer for the replacement or repair of a product. The
warranty is strictly parts only for the parts supplied by FSA. This warranty only applies to the original consumer of the
product and is non-transferable. If you have purchased the system through a re-seller, please contact them to facilitate
the warranty on your behalf. All replaced or exchanged parts become the property of FSA.
FSA does not cover the workmanship of the plumber who originally installed the system. Responsibility for damages
that occur during installation fall with the plumber, this includes the Quarts Thimble and Lamp also.
Qualification for Warranty
As per Australian Plumbing Codes, all filter systems must be installed by a qualified plumber. The consumer is
responsible for keeping record and proof of installation in the form of an invoice and/or receipt.
Filter systems must be maintained as per FSA recommendations³ including the use of replacement filters, fittings and
components supplied by FSA. Failure to maintain the filtration systems using FSA supplied/approved products may
void warranty.
The warranty only applies if the product was used and/or installed in accordance with the user guide and/or installation
instructions. This warranty is given in lieu of all other express or implied warranties and manufacturer shall in no
circumstance be held liable for damages consequential or otherwise or delays caused or faulty manufacturing except
as excluded by law.
Warranties need to be approved by FSA to ensure the product was not incorrectly used, installed or claimed. False
and incorrect claims will be pursued at FSA’s discretion including chargeable inspection and transit costs incurred.
FSA does not take responsibility for retaining customer records, it is the consumer’s responsibility to retain all invoices
or proof of purchase from the original sale and ongoing maintenance records as proof of upkeep.
Warranty Exclusions
FSA Standard Warranty shall be void if the product sustains damage or failure resulting from
any of the following:
•If your system(s) fails to be installed and maintained in accordance with recommended servicing and as per
the manufacturers operating instructions.
•Unauthorised or abnormal use or operation.
•Failure to install a certified Single Socket Surge protector between the system and a 10A GPO
•Exposure to unsuitable environmental conditions*.
FSA does not cover the work of the plumber who originally installed the system.
Warranty – Australia
This warranty is given by Filter Systems Australia (Jacknel Pty Ltd ATF The J & N Family Trust). ABN 64 855 305 562
Located at 1/38 Jade Drive, Molendinar QLD 4214. Ph 07 5597 4585 & email [e-mail]
This warranty is provided in addition to other rights and remedies you have under law. Our products come with
guarantees which cannot be excluded under the Consumer Guarantees Act.

Rev. 17/12/2020
Definitions
¹ Water Filter Systems are defined as systems designed for drinking water under our Water filter Systems, Reverse Osmosis Systems & Ultraviolet
Sanitation Categories – Excluding Cartridges and Shower Filters.
² Other products not manufactured or assembled by FSA are covered under the applicable manufacturer’s warranty.
³ FSA specifies recommended or required filter maintenance – see product information for further details. If a maintenance schedule is not
specified, filter maintenance is required at least once per 12 month period.
* Unsuitable environmental conditions include but are not limited to; Excessive hot or cold, Weather extremes, Moisture/Rain/High Humidity.
Extended Warranty
Filter Systems Australia Ultraviolet Systems are eligible for an extended 4-year warranty (commencing no later than
12 months from sale date), to provide a total warranty of 5 years. This extended warranty is subject to terms and
conditions outlined below. This extended warranty covers the below parts of the system.
•Ultraviolet Chamber (316 Stainless Steel)
Extended Warranty Qualification
Extended Warranty is valid only if the following conditions are met:
•The System was installed by a licenced plumber – proof of installation required in the form of a receipt or
invoice for works.
•The system was maintained in accordance with our recommendations in Maintenance – Section I.
Replacement Parts.
oUV parts must be genuine FSA products purchased through FSA or participating supplier/reseller of
FSA products
oProof of purchase for replacement parts required.
Pro-Rata & Consumable Warranty
Some components are considered consumables including the Lamp, Quartz Thimble and O-rings. General Warranty
does not apply to these consumables. These products are subject to Pro-Rata Warranty conditions. Pro-Rata
Warranty is determined by the period of time remaining of the components ‘Lifespan’ as dictated in the instruction
manual (and below). A discount of the remaining balance of value (in life) will be deducted from the price of a new
replacement part.
For example; A lamp has a successful warranty claim after 6 months from date of original invoice, the discount will be
50% from the next purchase of a replacement UV lamp. Pro-Rata Warranty only applies for a single use within the
pro-rata period (12 months).
Pro-Rata Warranty only applies to components purchased new at full list price or as part of an applicable UV system.