Canature HT765TO-75 User manual

765 Valve
Filters
Owners Manual
REVISION # 0
REVISION DATE May 4, 2015
54590-1
FOLLOWTHE INSTALLATION INSTRUCTIONS CAREFULLY. FAILURE TO
INSTALL THE UNIT PROPERLY VOIDS THE WARRANTY. BEFORE YOU
BEGIN INSTALLATION, READ THIS ENTIRE MANUAL. THEN, OBTAIN ALL
THE MATERIALS AND TOOLS
1. Avoid pinched o‐rings during installaon by applying (provided with install kit) NSF cerfied lubri‐
cant to all seals.
2. This system is not intended for treang water that is microbiologically unsafe or of unknown
quality without adequate disinfecon before or aer the system.
New Style Parallel Tank Connector

2
PAGE
Unpacking / Inspection 2
Safety Guide 2
Proper Installation 3
Specification 4
Before Starting Installation 4
Sizing Requirement 7
Installation Instructions 8
System Start Up 10
Programming Instructions 11
About The System 12
Maintenance 13
Main Repair Parts 16
Trouble Shooting 21
Warranty 22
Table of Contents
Safety Guide
 Check and comply with your provincial /
state and local codes. You must follow
these guidelines.
 Use care when handling the filter tank. Do
not turn upside down, drop, drag or set on
sharp protrusions.
 The system works on 12 volt-60 Hz electri-
cal power only. Be sure to use only the
included transformer.
 Transformer must be plugged into an in-
door 120 volt, grounded outlet only.
 WARNING: This system is not intend-
ed for treating water that is microbiologi-
cally unsafe or of unknown quality without
adequate disinfection before or after the
system.
For your safety, the information in this manual must be followed to minimize the risk of
electric shock, property damage or personal injury.
Be sure to check the entire unit for any shipping damage or parts loss. Also note damage to
the shipping cartons. Contact the transportation company for all damage and loss claims.
The manufacturer is not responsible for damages in transit.
Small parts, needed to install the softener, are in a parts bag. To avoid loss of the small
parts, keep them in the parts bag until you are ready to use them.
Unpacking / Inspection

3
Proper Installation
This water filter system must be properly installed and located in accordance with the
Installation Instructions before it is used.
 Do not install or store where it will not be
exposed to temperatures below freezing or
exposed to any type of weather. Water
freezing in the system will break it. Do not
attempt to treat water over 100°F.
 Do not install in direct sunlight. Excessive
sun or heat may cause distortion or other
damage to non-metallic parts.
 Properly ground to conform with all gov-
erning codes and ordinances.
 Use only lead-free solder and flux for all
sweat-solder connections, as required by
state and federal codes.
 Maximum allowable inlet water pressure is
125 psi. If daytime pressure is over 80
psi, night time pressure may exceed the
maximum. Use a pressure reducing valve
to reduce the flow if necessary.
 WARNING: Discard all unused parts and
packaging material after installation. Small
parts remaining after the installation could
be a choke hazard.

4
Model
Media
CuFt
FlowRateUSGPM
 
Micron
Rang
Mineral
Tank
Size
PipeSize
Inches
Ship
Weight
Lbs
ServicePeak
Back-
wash
Taste & Odor Filters          
HT765TO-750.754.05.03.5    8x443/4"-1"50
HT765TO-1001.04.06.04.0    9x483/4"-1"60
HT765TO-1501.55.07.05.0    10x543/4"-1"78
Neutralizing Filters          
HT765NU-750.752.04.04.0    8x443/4"-1"93
HT765NU-1001.03.06.05.0    9x483/4"-1"120
HT765NU-1501.54.010.07.0    10x543/4"-1"164
Sediment Turbidity Mul‐Media Filters        
HT765MM-750.754.05.03.5   15-20µ 8x443/4"-1"79
HT765MM-1001.05.07.04.0   15-20µ 9x483/4"-1"118
HT765MM-1501.57.010.07.0   15-20µ 10x543/4"-1"144
Nexsand Turbidity Filters         
HT765NEX-750.754.06.03.5   3-5µ 8x443/4"-1"90
HT765NEX-1001.005.08.04.0   3-5µ 9x483/4"-1"135
HT765NEX-1501.508.010.05.0   3-5µ 10x543/4"-1"175
Chloramines Reduc‐
on Filters (Catalyc
Carbon) Dual Tank          
HT765CLA-750.754.06.03.5    8x443/4"-1"100
HT765CLA-1001.005.08.04.0    9x483/4"-1"120
HT765CLA-1501.508.010.05.0    10x543/4"-1"155
SPECIFICATIONS

5
Before Starting Installation
Tools, Pipe, and Fittings, Other Materials
How Your Filter Works
Backwashing of the filter takes place during the night while you sleep. First, backwashing
cleans the filter bed, then a rapid rinse clears any remaining particulates from the water. All
functions are performed automatically.
Your automatic filter can be set to operate according to your needs by programming the ap-
propriate settings. On the days your filter regenerates, the operating cycles will be auto-
matically performed. In the service position, filtered water is supplied for household use.
This valve is controlled with simple, user-friendly electronics displayed on a LCD screen.
The main page displays the current time and the remaining gallons in meter mode or the
remaining days in calendar clock mode.
 Pliers
 Screwdriver
 Teflon tape
 Razor knife
 Two adjustable wrenches
 Additional tools may be required if modifi-
cation to home plumbing is required.
 Plastic inlet and outlet fittings are included
with the filter. To maintain full valve flow,
3/4” or 1” pipes to and from the filter fit-
tings are recommended. You should main-
tain the same, or larger, pipe size as the
water supply pipe, up to the softener inlet
and outlet.

6
Where To Install The Filter
 Use copper, brass, or PEX pipe and fittings.
 Some codes may also allow PVC plastic
pipe.
 ALWAYS install the included bypass valve,
or 3 shut-off valves. Bypass valves let you
turn off water to the filter for repairs if
needed, but still have water in the house
pipes.
 5/8” OD drain line is needed for the valve
drain. A 10’ length of hose is included.
with some models.
 Place the filter tank as close as possible to
the pressure tank (well system) or water
meter (city water).
 Place the filter tank as close as possible to
a floor drain, or other acceptable drain
point (laundry tub, sump, standpipe, etc.).
 Connect the filter to the main water supply
pipe BEFORE the water heater. DO NOT
RUN HOT WATER THROUGH THE FIL-
TER. Temperature of water passing
through the filter must be less than 100
deg. F.
 Do not install the filter in a place where it
could freeze. Damage caused by freez-
ing is not covered by the warranty.
 Put the filter in a place water damage is
least likely to occur if a leak develops. The
manufacturer will not repair or pay for wa-
ter damage.
 A 120 volt electric outlet, to plug the in-
cluded transformer into, is needed within 6
feet of the softener. The transformer has
an attached 6 foot power cable. Extension
cables are available. Be sure the electric
outlet and transformer are in an in-
side location, to protect from wet
weather.
 If installing in an outside location, you
must take the steps necessary to assure
the filter, installation plumbing, wiring,
etc., are as well protected from the ele-
ments, contamination, vandalism, etc., as
when installed indoors.
 Keep the filter out of direct sunlight.
The sun’s heat may soften and distort
plastic parts.

7
Sizing Requirements
Water Pressure
The water system must have a pump big enough to deliver the recommended backwash
rate with a minimum pressure at the inlet of the filter of 30 psi. If the existing system can-
not do this, it must be upgraded to do so. Whenever possible, the water system should be
adjusted to deliver at least 30 psi for even more satisfactory results.
Backwash Flow Rates
The most important criteria in sizing a filter is the capacity of the pump. The water must
pass through the filter media at the proper service flow rate. The filter must also be back-
washed at a flow rate sufficient to dislodge and remove the captured particles. Failure to
provide sufficient water will cause a build-up of particles in the filter media, impairing its
ability. In order for your filter to backwash and rinse properly, your pump must be capable
of providing the backwash flow rates indicated on page 4.
Check Your Pumping Rate
Two water system conditions must be checked carefully to avoid unsatisfactory operation or
equipment damage:
1. Minimum water pressure required at the filter tank inlet is 20 psi.
2. Measuring the pumping rate of your pump:
With the pressure tank full, draw water into a container of known volume, and measure the
number of gallons drawn until the pump starts again. This is draw-down. Divide this figure
by cycle time and multiply the result by 60 to arrive at the pumping rate in gallons per mi-
nute (gpm). To aid in your calculation, insert the date in the following formula:
DRAW-DOWN ______ ÷ CYCLE TIME _______ x 60 = PUMPING RATE ________ (gals)
(secs.) (Gpm)
EXAMPLE: CYCLE TIME is 53 seconds. DRAW-DOWN is 6 gallons; then, PUMPING
RATE equals:
6 gallons ÷ 53 seconds x 60 = 6.8 gpm
See chart on page 4 for minimum flow rates.
NOTE: If your pumping rate is inadequate for the model, do not install your filter until
the problem has been corrected.

8
New flow directions.
OUT— IN
New Style Parallel Tank Connector
The design of the parallel tank adaptor used in our dual-tank products (i.e. BIF/BAF,
HTO, HEDP etc.) has been redeveloped. This new shorter version will also change the

9
Regeneration Process Explained
Backwash: Backwash: During the backwash cycle, water enters tank #2 through the center of the distribu-
tion tube and flows up- wards in the tank#2 expanding the media bed and carrying any precipitated contami-
nants trapped within the bed. It then travels to tank #1 through the center of the distribution tube and flow
upwards in tank #1 and then out to the drain.
Brine Draw: During the brine draw cycle, brine water enters tank #2 through the center of the distribution
tube and flows upwards in the tank #2 regenerating the media bed. It then travels to tank #1 through the cen-
ter of the distribution tube and flows upwards in tank #1 and then out to the drain.
Settle Rinse : During the settle rinse cycle, water enters tank #1 down through the bed and up the through
the center of the distribution tube. It then travels to tank #2 down through the bed and up the through the
center of the distribution tube and out to the drain.
Refill : During refill the control valve will put water into the brine tank for the next regeneration cycle.
Tank 1 Tank 2 Tank 1 Tank 2 Tank 1 Tank 2 Tank 1 Tank 2
Backwash Brine Draw Settle Rinse/Service Refile
To
Drain From
Brine
Tank
To
Drain

10
1. If your hot water tank is electric, turn off the power to it to avoid damage to the element
in the tank.
2. If you have a private well, turn the power off to the pump and then shut off the main wa-
ter shut off valve. If you have municipal water, simply shut off the main valve. Go to the
faucet, (preferably on the lowest floor of the house) turn on the cold water until all pres-
sure is relieved and the flow of water stops.
3. Locate the filter tank close to a drain where the system will be installed. The surface
should be clean and level.
4. Connect the inlet and outlet of the filter using appropriate fittings. Perform all plumbing
according to local plumbing codes.
 Use a ½” minimum pipe or tubing size for the drain line
 ON COPPER PLUMBING SYSTEMS BE SURE TO INSTALL A GROUNDING
WIRE BETWEEN THE INLET AND OUTLET PIPING TO MAINTAIN GROUND-
ING.
Any solder joints near the valve must be done before connecting any piping to the valve.
Always leave at least 6" (152 mm) between the valve and joints when soldering pipes that
are connected to the valve. Failure to do this could cause damage to the valve.
5. Connect the drain hose (10 ft included) to the valve and secure it with a hose clamp (also
included). Run the drain hose to the nearest laundry tub or drain pipe. This can be ran
up overhead or down along the floor. If running the drain line more than 20 ft overhead,
it is recommended to increase the hose size to 3/4”. NEVER MAKE A DIRECT CONNEC-
TION INTO A WASTE DRAIN. A PHYSICAL AIR GAP OF AT LEAST 1.5” SHOULD BE USED
TO AVOID BACTERIA AND WASTEWATER TRAVELLING BACK THROUGH THE DRAIN
LINE INTO THE FILTER.
6. Using the Allen Key (included), place the unit in the bypass position. Slowly turn on the
main water supply. At the nearest cold treated water tap nearby remove the faucet
screen, open the faucet and let water run a few minutes or until the system is free of any
air or foreign material resulting from the plumbing work.
7. Make sure there are no leaks in the plumbing system before proceeding. Close the water
tap when water runs clean.
8. Proceed to start up instructions.
Note: The unit is not ready for service until you complete the start-up instruc-
tions.
Installation Instructions

11
Filter Installation

12
System Start-Up
1. Plug the valve into an approved power source.
2. When power is supplied to the control, the screen will display “WAITING PLEASE” while it
finds the service position.
3. Start an Immediate Manual Regeneration. The valve will immediately start moving to the
BACKWASH position.
4. Open the inlet on the bypass valve slightly and very slowly allow water to enter the unit.
(If the water enters too quickly it will push the carbon up into the control valve and get
plugged).
5. Once the unit has filled sufficiently that water is at least equal to the height of the top of
the media shut down the water for 15 – 20 minutes for the carbon to soak. Unplug the
power cable. After the carbon has soaked for the recommended time continue by plug-
ging the power cable back in.
6. Turn the water back on slowly to backwash until water runs clear to drain.
7. Press any button to advance to the RINSE position. Check the drain line flow. Allow the
water to run for 3-4 minutes or until the water is clear.
8. The valve will automatically advance to the SERVICE position after the RINSE cycle is
complete. Open the outlet valve on the bypass, then open the nearest treated water fau-
cet and allow the water to run until clear, close the tap and replace the faucet screen.
9. Program time, date, and number of days between regenerations into controller using Pro-
gramming Instructions
Note : Carbon filters only:
Once the unit has filled sufficiently that water is at least equal to the height of the media
shut down the water for 15 – 20 minutes for the carbon to soak.
After the carbon has soaked for the recommended time continue with installation instruc-
tions.
Additional information for Non backwashing carbon filter.
After soaking, remove the aerator screen from the nearest faucet, run water at this faucet
until all fines (black) is gone from the water.
Start-up Instructions
Key Pad Configuration
SETTINGSThisfunconistoenterthebasicsetupinformaonrequiredatthe
meofinstallaon.
SELECTPressingthiskeyallowstheusertochangethevalueofeachseng.
DOWN/UPIncreaseordecreasethevalueofthesengswhileintheprogram-
mingmode.

13
Programming Instructions
1. Press SETTINGS to enter programming. If the system has been inactive, you may
have to hold and press SETTINGS to unlock the display screen. Press UP or DOWN to
select which setting to modify.
2. To adjust a value, press SELECT. When the display flashes, the value may be
changed. Press UP or DOWN to change the value. Press SELECT again to accept the
value.
3. Press UP or DOWN to advance to the next option.
4. At any time, press SETTINGS to return to previous home screen menu.
The table below can be used to help deter-
mine the frequency of regeneration for Multi-
Media and Taste & Odour filters. Use this ta-
ble as a guide since individual circumstances
will require more or less frequent regenera-
tions. This can be adjusted by the home
owner to suite their individual needs with fre-
quencies available from 1 – 99 days.
To prevent bacterial build up in the media,
activated carbon filters should not exceed 6
days between backwashes.
Sediment Mild Average Extreme
Taste Odor Mild Average Extreme
No. Of Per-
sons Days Between Back Wash (Regenerations)
26666666666444444
36666444444333333
46666444333222222
56644333322221111
66644333222211111
76443322211111111
86443222211111111
94433221111111111
10 4332211111111111
Backwash Frequency

14
About The System
Manual Regeneration (Step / Cycle Valve)
Operation During A Power Failure
In the event of a power failure, the valve will keep track of the time and day for 48 hours.
The programmed settings are stored in a non-volatile memory and will not be lost during a
power failure. If power fails while the unit is in regeneration, the valve will finish regenera-
tion from the point it is at once power is restored. If the valve misses a scheduled regener-
ation due to a power failure, it will queue a regeneration at the next regeneration time once
power is restored.
Main Display
When power is supplied to the control, the screen will display TIME OF DAY, GALLONS RE-
MAINING, and DEALER NAME and PHONE NUMBER.
The brine tank is equipped with a safety float which prevents your brine tank from overfill-
ing as a result of a malfunction such as a power failure.
Safety Float
New Sounds
You may notice new sounds as your water softener operates. The regeneration cycle lasts
up to 180 minutes. During this time, you may hear water running intermittently to the drain.
To Initiate the manual regeneration, rotate the knob to the backwash position.

15
Periodically the filter will require a back wash to clean the trapped particles and unpack the
filter bed to restore the system flow rates. The table below explains the regeneration steps.
Regeneration Process
Maintenance
Care of Your System
To retain the attractive appearance of your new water filter, clean occasionally with mild
soap solution. Do not use abrasive cleaners, ammonia or solvents. Never subject your sof-
tener to freezing or to temperatures above 100°F.
Maintenance of your new water filter requires very little time or effort but it is essential.
Regular maintenance will ensure many years of efficient and trouble-free operation.
1. Periodically make sure your pump is performing satisfactorily to ensure sufficient water is
available for backwashing the filter.
2. Periodically test your raw and filtered water to ensure conditions are still the same for
your original settings and that the unit is working they way it is intended to. Water test-
ing is often the best way to determine when the filter media will require replacement.
3. Periodically check that the drain line is clear and free from any obstructions.
AC - Taste and Odor Filter - under normal operating conditions the effective life of the
filter media is approximately one to three years, depending on the water quality, after
which, taste and odor problems may return. When this happens, contact your dealer for a
replacement media bed.
Replacing the Media Bed
Check to ensure all media parts are received.
The first step in replacing the media bed is to shut off the water supply to the filter. Then
place the unit into the backwash position to release any pressure in the lines. At this point,
you must disconnect the plumbing from the inlet and outlet. Then unscrew the control
valve from the fibreglass tank. Once this has been done, remove the distributor tube. Then
you can remove the filter media and two types of gravel from the tank. The quickest way to
do this is by simply tipping the tank upside down into a large drum or pail. The tank must
be rinsed out completely and have no media or gravel left in it at all.
Installation & Replacement Filter Media Pak

16
Loading the Media Pak
Place the distributor tube back down the center of the tank. NOTE: the top of this tube
should be plugged with a rag or cork to prevent media from entering. Pour the bag of
coarse gravel into the tank, and then pour the bag of fine gravel into the tank.
It is important that the distributor tube is not moved or pulled out as it is not possible to put
it down to the bottom of the tank once gravel or media are in the tank.
Finally pour the larger bag(s) of media into the tank in the following order:
Carbon Filters
1. Carbon
Once this is done, the rag or cork should be removed from the distributor tube. Clean off
the top of the tank. Finally place the control valve on the tank and on to the distributor
tube. Tighten the control valve on to the tank. Connect or reconnect the inlet and outlet and
drain. The control valve should be in the backwash position. Slowly open the inlet valve wa-
ter supply and slowly fill the filter tank until water appears at the open drain line. Return the
control to the service position and shut the inlet off for approximately one hour to allow the
media to soak in the water.
After one hour, turn inlet water on slowly and place the control into the backwash position
and plug the unit’s electrical cord into a constant power source. Let the unit continue
through its regeneration cycle automatically. The regeneration is necessary so all media
fines are backwashed down the drain to ensure clean filtered water.

17
Main Repair Parts
Replacing Drain Line Flow Control (DLFC)
1. Remove the red clip that secures the drain line elbow.
2. Remove the BLFC washer from the elbow fitting.
3. Reassemble using the reverse procedure.

18
A A A
B
D
F
E
A
C
Main Repair Parts - Connectors

19
Control Valve Exploded View

20
Control Valve Parts List