Tapworks TWHF User manual

Installation and Operation Manual
How to install, operate and maintain your
Central Water Whole Home Filtration System
The Tapworks
Whole Home
Filter

1
Tapworks Model TWHF
Central Water Whole Home Filtration System
Specifications
Dimensions
Flow rate at 1 bar pressure drop 41.6 litres/min.*
Maximum day time pressure 4.76 bar
Supply water temperature limits (minimum/maximum) 5-49 °C
Minimum day time pressure 1.7 bar
Drain flow rate 12.9 litres/min.
Estimated total capacity 2,044 cubic metres*
* From independent laboratory test data.
(Rev. 11/19.08)

2
Unpacking and Inspection
Packing List

3
How a Central Water Filtration System Works
Normal operation
During normal operation water enters the Central Water
Filtration System and flows through several filtration
processes where tastes, odours and sediment* are reduced.
Refresh cycle
A Refresh cycle will automatically be initiated based on
how the controller has been programmed. The Refresh
cycle lifts and expands the media bed to rejuvenate the
media and then repacks the bed for continued use. During
the Refresh cycle, dirt, sediment, etc. are flushed from the
Central Water Filtration System down the drain.
Applications for a Central Water
Filtration System
• Do not use the Central Water Filtration System with
water that is microbiologically unsafe or of unknown
quality without adequate disinfection before or after
the system.
• The Central Water Filtration System may not be an
effective treatment method for water sources with
a hydrogen sulphide problem (rotten egg odour
or taste).
• The Central Water Filtration System will not remove
iron and is not intended to replace iron treatment
equipment.
• Although the Central Water Filtration System has
sediment* filter capabilities, additional sediment
filtration may be needed in problem water
applications.
* As shown by independent third party test data.

4
Installation Requirements
Location requirements
Consider the following when selecting an installation
location for the Central Water Filtration System.
• Do not operate the Central Water Filtration System
where freezing temperatures occur. Do not attempt to
treat water over 49°C. Freezing temperatures or hot
water damage voids the warranty.
• To condition all water in the home, install the Central
Water Filtration System close to the water supply inlet,
and before all other plumbing connections, except
outside water pipes.
• A nearby drain is needed to carry away Refresh
discharge water. Use a suitable drain, standpipe,
or other options. See "Air Gap Requirements" and
"Valve Drain Requirements" sections.
• The Central Water Filtration System works on
24 volt, 50 Hz electrical power only, supplied by
a direct plug-in transformer (included).
• Do not install the Central Water Filtration System on
a hot water line (See diagram below).
• Install the Central Water Filtration System between the
home’s incoming water supply and the water softener,
if one is being used (See diagram).
The proper order to install water treatment equipment

5
Installation Requirements
Air Gap requirements
A drain is needed for Refresh discharge water. A drain
close to the Central Water Filtration System is preferred.
A standpipe is another drain option. Secure valve drain
hose in place. Leave an air gap of 20 mm between the
end of the hose and the drain. This gap is needed to
prevent backflow of sewer water into the Central Water
Filtration System. Do not put the end of the drain hose into
the drain.
Valve Drain requirements
Using the flexible drain hose (included), measure and cut
to the length needed.
Note: Avoid drain hose runs longer than 9 metres.
Make the valve drain line as short and direct as
possible.
Connecting Valve to Drain

6
Start up Procedure
Important
Run the start up cycle immediately after
completing installation, before using
any water in the home.
The filtration media in this Central Water Filtration System
contains a small number of harmless activated carbon
particles generated during shipping that are small enough
to exit the system with water flow. It is normal for these
particles to cause a temporary discolouration of the water
coming out of the system. To avoid discoloured water at
your home’s taps the system’s start up cycle should be
initiated to rinse the particles and any discoloured water
down the drain.
If the Central Water Filtration System is used without first
running the start up cycle, you will notice that the water
will temporarily have a grey colour until the particles have
exited the system.
To Initiate the start up cycle:
1. Make sure the drain hose is attached to the Central
Water Filtration System and the other end is secured
over a drain.
2. Make sure bypass valve is in the “service” (open or
filtered water) position and the home’s water supply is
turned on.
3. Press and hold the CLEAN button to initiate the start up
cycle. The button can be released when you hear the
valve changing position and “RECHARGE NOW”
flashes in the display.
During the start up cycle:
Throughout the start up cycle you will hear the valve
changing position and notice the flow of water to drain
starting and stopping. The start up cycle will take
approximately 20 minutes. Avoid using water during this
time. Do not set the time of day or press other buttons
during the start up cycle, as this will interrupt the start up
cycle. Do not unplug the transformer during the start up
cycle. If the start up cycle is interrupted, it should be
initiated again and allowed to run to completion.
After the start up cycle:
Once the start up procedure completes successfully, it
cannot be initiated a second time. The Central Water
Filtration System will automatically return to the normal
operation position. Once the start up cycle has run, a
tap in the home should be opened and water allowed to
run for 10 minutes at the system’s rated flow. If, after
running the start up cycle, the water still appears
discoloured, manually run Clean Rinse cycles (See Page 9)
until the water is clear.
If the time of day was not set before the start up cycle, set
it now (See Page 7).
Check the new plumbing connections and joints once
more for leaks.

7
Programming the Electronic Controller
Controller settings required
Upon installation, and after an extended power outage. When the transformer is
plugged into the electrical outlet, a model code (LCF) and a test number (example:
J1.6), are briefly shown in the faceplate display. Then the words “SET TIME”
appear and “12:00” begins to flash.
NOTE: If “- - - -” shows in the display, press the UP or DOWN button until
the model code (AF) shows in the display. Then, press the ENTER button
to set, and change to the flashing “SET TIME" display.
Set present time of day
If the words “SET TIME" do not show in the display, press the ENTER button
several times until they do.
1. Press the UP or DOWN buttons to set the present time. Up moves the
display ahead; down sets the time back.
NOTE: Press buttons and quickly release to slowly advance the display. Hold
the buttons down for fast advance.
2. When the correct time is displayed, press the ENTER button several times, until
the time appears on the display, but is not flashing.
Start a clean rinse cycle
To manually start a Clean Rinse cycle, press and hold the CLEAN button for a
few seconds, until “RECHARGE NOW” flashes in the display. This Clean Rinse
cycle takes 3 minutes (unless the factory settings for backwash and fast rinse times
have been changed, as shown on the following page).

8
Controller Features/Options
Set number of days between clean rinse cycles
By default the Central Water Filtration System will automatically initiate a Clean Rinse
every 14 days. This should be sufficient for most applications. To change the number of
days between Clean Rinse cycles:
1. Press the ENTER button a few times until “RECHARGE” is shown in the display.
2. Press the UP or DOWN buttons to set the number of days between Clean Rinse
cycles (from 1 to 99).
3. When the desired number of days is shown, press the ENTER button several times to
advance through the remaining screens and return to the normal operation (time of
day) display.
Set clean rinse start time
By default the Central Water Filtration System will Clean Rinse at 01:00. The system will
not filter water during the Clean Rinse cycle. It is recommended that the Clean Rinse
start time be set for when water is not likely to be used in the household.
NOTE: If you also have a water softener, set the Central Water System’s Clean Rinse
time for either one hour before or two hours after the water softener’s
scheduled regeneration time.
To change the Clean Rinse start time:
1. Press the ENTER button a few times until “SET RECHARGE TIME” is shown in the
display.
2. Press the UP or DOWN buttons to set the Clean Rinse time in 1 hour
increments.
3. When the desired Clean Rinse time is shown, press the ENTER button several times
to advance through the remaining screens and return to the normal operation (time
of day) display.
Set length of clean rinse
By default the Central Water Filtration System’s Clean Rinse cycle will consist of a
2 minute backwash followed by a 1 minute fast rinse. This should be sufficient for most
applications.
Increasing the length of Clean Rinse time will increase the amount of water flushed to
drain during each Clean Rinse cycle. Increasing the length of Clean Rinse should only
be done in cases of very high amounts of sediment, or other water issues.
To change the length of the backwash or fast rinse parts of the Clean Rinse cycle:
1. Press and hold the ENTER button for a few seconds, until the “000--” screen
appears, as shown at right.
2. Press the ENTER button once, so “SET TIME bA” appears in the display.
3. Press the UP or DOWN buttons to set the length of backwash in minutes.
4. Press the ENTER button when the desired backwash time is shown. “SET TIME Fr”
appears in the display.
5. Press the UP or DOWN buttons to set the length of fast rinse in minutes.
6. Press the ENTER button when the desired fast rinse time is shown. The display will
change to the time of day.

9
Controller Features/Options
Operating in manual clean rinse mode
Clean Rinse cycles will run automatically, unless the automatic Clean Rinse function has
been disabled. If this function has been disabled, it will be necessary to manually
initiate any Clean Rinse cycles. It is recommended that a Clean Rinse cycle should be
run at least once each month, or more frequently if necessary.
A manual Clean Rinse mode may be used when a drain (required for automatic Clean
Rinse) is not available. However, it is recommended that automatic Clean Rinse be used
if the drain requirements can be met.
IMPORTANT: During the Clean Rinse cycle, whether manually or automatically
initiated, water will flow from the valve drain port at 13 litres per minute for 3 minutes.
Disabling automatic clean rinse
To disable the automatic Clean Rinse function:
1. Press and immediately release the CLEAN button (pressing and holding the button a
few seconds would initiate a Clean Rinse cycle).
2. “RECHARGE OFF” will flash in the display, as shown in Figure 1, indicating that the
Central Water Filtration System is in the manual Clean Rinse mode (the automatic
Clean Rinse function has been disabled).
Manually starting a clean rinse cycle
To manually start a Clean Rinse cycle:
1. Press and hold the CLEAN button for a few seconds, until “RECHARGE NOW”
flashes in the display, as shown in Figure 2.
2. When the Clean Rinse cycle is complete, the Central Water Filtration System will
remain in the manual Clean Rinse mode.
Re-enabling automatic clean rinse
To return the Central Water Filtration System to its automatic Clean Rinse function:
1. Press and immediately release the CLEAN button.
2. The flashing “RECHARGE OFF” on the display should be replaced by the normal
time of day screen, as shown in Figure 3.
Power outage memory
If electrical power to the Central Water Filtration System is lost, “memory” built into the
controller circuitry will keep all settings for up to eight hours. While the power is out, the
display is blank and the Central Water Filtration System will not Clean Rinse.
When electrical power is restored, you have to reset the time of day only if the display
is flashing. The Clean Rinse TIME never requires resetting unless a change is desired.
Even if the clock is incorrect after a long power outage, the Central Water Filtration
System works as it should to keep your water treated. However, Clean Rinse cycles may
occur at the wrong time of day until you reset the clock to the correct time of day.
NOTE: If the Central Water Filtration System was in a Clean Rinse cycle when power
was lost, it will now finish the cycle.
FIG. 1
FIG. 2
FIG. 3

10
Wiring Schematic

Tapworks, Mill Road, Stokenchurch, Bucks HP14 3TP
Direct Service Line: 0870 429 9019 Fax: [phone]
[email protected] www.tapworks.co.uk
As part of our policy of ongoing research and development, we reserve the right to alter design and specification without prior notice.
Part no: 300450
Issue: 03/09
www.uk-plumbing.co.uk