Puretec PT Series User manual

For correct operation & installation, it is essential to observe these instructions.
MAY2021
User Guide
Caravan / RV Fresh Water Pump
PT Series

2Installation Setup Manual Copyright © Puretec Pty Ltd 2021
What's Inside
Puretec Customer Service
Thank you for purchasing a Puretec PT Series Pump. Your Pump is a proven performer
manufactured from only quality materials and components and is ideal for use with Reverse
Osmosis systems and other low pressure water ltration systems.
Carefully read through the installation instructions before installing and putting the unit into
service. These must always be issued to the owner/user. Customer Service Helpline 1300 140
140 (Australia) 0800 130 140 (New Zealand).
What's Inside
Puretec Customer Service .....................................................................................................................2
Introduction.....................................................................................................................................................2
Features ............................................................................................................................................................3
Applications.....................................................................................................................................................3
Materials/Tools Required .........................................................................................................................3
Installation.......................................................................................................................................................4
Electrical Information - Wire Gauges................................................................................................5
Exploded Diagram .......................................................................................................................................6
Before Adjusting the Bypass .................................................................................................................6
Adjusting the Bypass & Pressure Switch........................................................................................7
Troubleshooting ............................................................................................................................................9
Warranty ........................................................................................................................................................11
Installation Record
For future reference, ll in the following data:
Model Number: PT-12DC11
Purchased From:
Date of Installation:
Plumber Details:
Electrician Details:

3
PT Series | Caravan / RV Fresh Water Pump
Features
Introduction
The Puretec PT Series Pump is designed to run economically for many years, dependent
on the initial installation and periodical maintenance.
Features
• 4 Chamber diaphragm pump
• Bypass to reducing cycling
• Dry Run Protection
• Automatic operation controlled by pressure switch
• Industry standard mounting pattern
• Self-priming
• Quiet operation
Applications
• Caravan / RV / boat pressurised water system
• Sprayer xtures (vehicle-mounted sprayers, electric sprayers)
• Cleaning machines, humidier, water purication, medical apparatus
• Beverage lling & liquid transfer
• Solar water system
• Any other small pressurisation system
Materials/Tools Required
You will need the following materials/tools to install the PT Series pump:
• 2 (or more) lengths of exible, reinforced hose with a collapsing strength of twice the
inlet pressure.
• 4 x stainless steel hose clamps and screws
• 4 x screws to fasten the pump to the mounting surface
• Electrical cuto switch
• 15 AMP Fuse
• Screwdriver
• Strong cutting implement for tubing
• Thread seal tape

4Installation Setup Manual Copyright © Puretec Pty Ltd 2021
Installation
Installation Note: A pump, like any product, has a limited lifespan and if not replaced,
will eventually fail. Failure can happen early due to unforeseen circumstances. To avoid
possible property damage, this product should be regularly examined for leakage and/
or deterioration and replaced when necessary. We strongly recommend that a drain
pan, plumbed to an appropriate drain or outtted with a leak detector, be used in
those applications where any leakage could cause property damage. We also strongly
recommend that the water supply be turned o, upstream to the pump, if no one is
home for an extended period of time.
1. The pump may be mounted in any position. If mounted vertically, the pump head should
be in a downward position to avoid leakage into the motor casing in the event of a
malfunction.
2. Secure the feet, but do not compress them. Overtightening the securing screws may reduce
their ability to dissipate noise and vibration.
3. Intake hose must be a minimum 1/2" (13mm) diameter, reinforced tubing. The main
distribution line from pump outlet should also be 1/2"with branch and individual supply lines
to outlets no smaller thn 3/8" (10mm).
4. Plumb the system using high pressure (2 x pump rating), exible tubing to minimize
vibration /noise.
5. Do not apply inlet pressure in excess of 30psi (206 kPa). In general, try to avoid any inlet
pressure completely.
6. Avoid any kinks or ttings which could cause restrictions.
7. The strainer (provided) should be attached to the inlet side.
8. The ttings must be secured to avoid leakage.
9. If a check valve is installed in the plumbing, it must have an opening pressure of no more
than 2 psi (13 kPa).
10. If applying plumbing tape be careful to not overtighten, as they can be sucked into the
pump.
Installation

5
PT Series | Caravan / RV Fresh Water Pump
11. This pump should be wired on its own dedicated circuit. Connect the positive lead (red) to
the positive terminal of your battery and the negative wire (black) to the negative terminal
of your battery.
12. In an easily assessable location, install a switch to control the electricity to the pump. Turn
the pump o when not used for extended periods or when the tank is empty.
13. The electrical circuit should be protected with an over-current protection device (fuse) in the
positive lead. This pump requires a 15 AMP fuse.
14. The pump circuit should not include any other loads.
15. Be sure to have the correct wire sizing for the length of wire you are using.
16. Aer installation, check the voltage at the pump motor. Voltage should be checked when
pump is operating. Full voltage must be available at the pump motor at all times.
Notes
• Flexible portable water hose or PEX tubing is recommended instead of rigid piping at pump.
If you choose to use rigid piping, provide a short length of hose between pipe and the pump
to avoid noise and vibration.
• The use of metal ttings are not recommend. When possible, use the provided plastic
ttings.
• Do not adjust the bypass personally without the help of a technician or the Puretec
Customer Care Team.
• Lack of sanitising and maintenance can cause the pump to under perform. Ensure regular
maintenance is carried out and winterize the pump at appropriate times, especially before
and aer a period of storage.
Electrical Information

6Installation Setup Manual Copyright © Puretec Pty Ltd 2021
Exploded Diagram
Pressure
Switch
Pump Head
Assembly
Valve
Assembly
Diaphragm
Assembly
Motor
Assembly
Mounting
Bracket
O-ring
Before Adjusting the Bypass
Please consult Puretec or you local Puretec dealer if the bypass needs adjustment. Improper
adjustment of the bypass may damage the pump.
The bypass comes preset for optimal operation of the pump. If your application calls for a
dierent setting for the bypass, it may be changed accordingly. Carefully tighten the screw to
increase or loosen the screw to decrease the minimum operational pressure of the bypass.
Caution Ensure the installation instructions laid out in this user guide are correctly followed.
Any action outside what has been specied in the user guide may damage the pump and will not
covered by warranty.
Exploded Diagram

7
PT Series | Caravan / RV Fresh Water Pump
Bypass Installation Diagram
Water Tank
Pump
Gauge
Valve
Outlet
The eectiveness of any water treatment system is aected by variances in incoming water
quality. Do not use with unknown or contaminated water that does not t the parameters of the
system/product as specied by Puretec, for further assistance, contact the Puretec Customer
Service Helpline on 1300 140 140 (AU) or 0800 130 140 (NZ).
Adjusting The Bypass Valve and Pressure Switch
NOTE: THE BYPASS ADJUSTMENT SHOULD BE PERFORMED BY A PROFESSIONAL
TECHNICIAN USING A PROPER GAUGE AND EQUIPMENT. WITHOUT THE PROPER
EQUIPMENT, YOU MAY DAMAGE THE VALVE OR PRESSURE SWITCH CAUSING THE PUMP
TO NOT WORK CORRECTLY.
Caution: The pressure setting for full bypass must be at least 8psi (55 kPa) higher than the
shut-o pressure of the pump. If the pressure switch and bypass is adjusted too closely, the
bypass and pressure switch shut-o can overlap and the pump will not shut o.
The pump uses a spring-loaded bypass valve to maintain smooth performance as water
demands rise and fall. When a faucet is turned on, the pump is providing full water ow, so the
bypass valve is closed. When there is little or no water demand, the bypass valve opens to allow
water to ow back from the outlet side to the inlet side, keeping a steady ow of water within
the pump with almost no cycling.
Bypass & Pressure Switch

8Installation Setup Manual Copyright © Puretec Pty Ltd 2021
Adjusting the Pump's Shut-o Pressure
• Unscrew the front cover of the pressure switch (Fig. A).
• To raise the shut-o pressure, use a 2 mm Allen wrench to turn the pressure switch screw
clockwise to the desired pressure. To lower the shut-o pressure, use a 2 mm Allen wrench
to turn the pressure switch screw counter-clockwise to the desired pressure (Fig. B).
Adjusting the Bypass
• To raise the pressure at which the
bypass starts and raise the full bypass
pressure, use a 2 mm Allen wrench to turn
the bypass screw clockwise to the desired
pressure.
• To lower the pressure at which the
bypass starts and lower the full bypass
pressure, use a 2 mm Allen wrench to turn
the bypass screw anti-clockwise to the desired
pressure.
Pressure
Switch
Bypass
Switch
Bypass & Pressure Switch
Fig. A Fig. B

9
PT Series | Caravan / RV Fresh Water Pump
Troubleshooting
PROBLEM POSSIBLE CAUSE SOLUTION
Pulsating ow /
pump cycles on
and o.
Kink in the line(s) Check lines for kinks, rectify any
found.
Plumbing lines or ttings may be
too small. Upgrade lines and/or ttings.
Blockage in faucets and/or lters. Clean faucets & lters.
Air leak in tting. Check for loose ttings & tighten.
Noisy.
Feet on mounting bracket are
compressed too tightly. Loosen the mounting feet slightly.
The mounting surface is exible. Mount the pump to a solid surface.
Head/screws may be loose. Check head/screws & tighten.
Pump is plumbed with rigid pipe.
Rigid piping may transmit extra
noise more easily. If needed
plumb using tubing specied in the
Installation guide.
Failure to prime but
motors operates -
no pump discharge.
Restricted intake or discharge line. Clear any blockages/restrictions to
the lines..
Air leak in intake line. Check the line, ensure ttings are
tight, line is intact & rectify.
Punctured pump diaphragm. Replace pump.
Initial AMP supply is not enough to
suciently start the motor. Ensure min 3.5 A is achieved.
Debris clogged in valves.
Replace pump and ensure the
supplied strainer is installed prior to
the pump.
Crack in pump housing. Replace pump.
Motor fails to turn
on.
Loose or improper wiring.
Tighten any loose wiring &
ensure wiring is executed as per
outlined in the Installation Guide
& Electrical Information chart.
Pump circuit has no power.
Check to make sure power is
connected and there are no loose
wires.
Blown fuse or thermal protection
tripped.
Replace fuse. If replacing the
fuse does not work replace
pump.
Failed pressure switch. Replace pump.
Defective motor. Replace pump.
Troubleshooting

10 Installation Setup Manual Copyright © Puretec Pty Ltd 2021
PROBLEM POSSIBLE CAUSE SOLUTION
Pump fails to turn
o aer all xtures
are closed.
Punctured diaphragm. Replace pump.
Discharge line leak. Rectify leak.
Insucient voltage. Ensure 12V is achieved.
Clogged valves in pump head.
Replace pump and ensure the
supplied strainer is installed prior
to the pump.
Low ow and
pressure.
Air leak at pump intake. Rectify leak.
Accumulation of debris inside
pump or plumbing. Clean out debris.
Worn out pump bearing (possibly
accompanied by loud noise). Replace pump.
Punctured diaphragm. Replace pump.
Defective motor. Replace pump.
Troubleshooting

11
PT Series | Caravan / RV Fresh Water Pump
Warranty
Warranty
Any claim under this warranty must be made within 1 year of the date of purchase of the
product. This product is warranted to be free of defect of material and workmanship for
1 year from date of purchase. To make a claim under the warranty, take the product and
proof of purchase to place where you purchased the product, and they will lodge a Warranty
Request with Puretec. 1 year warranty is 1 year parts and labour.
Puretec will pay your reasonable, direct expenses of claiming under this warranty. You may
submit details and proof of your expense claim to place of purchase for consideration.
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.
Applicable to all above, is that the warranties need to be approved by Puretec to ensure
product was not incorrectly used, installed or claimed. False and incorrect claims will be
pursued at Puretec’s discretion, including chargeable inspection and labour costs incurred.
Warranty/Australia
This warranty is given by Puretec Pty Ltd, ABN 44 164 806 688, 37-43 Brodie Road, Lonsdale
SA 5160, telephone no. 1300 140 140 and email at [email protected].
This warranty is provided in addition to other rights and remedies you have under law: Our
goods come with guarantees which cannot be excluded under the Australian Consumer Law.
You are entitled to replacement or refund for a major failure and to compensation for other
reasonably 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.
Warranty/New Zealand
This warranty is given by Puretec Ltd, Reg. No 4464398, PO Box 875 Cambridge 3450, NZ,
telephone no. 0800 130 140 and email at [email protected].
This warranty is provided in addition to other rights and remedies you have under law: Our
goods come with guarantees which cannot be excluded under the Consumer Guarantees Act.
You are entitled to replacement or refund for a major failure and to compensation for other
reasonably 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.