Lancaster 7-LETCT-3B, 7-LETIM-3B, 7-LETIM-1B, 7-LETIM-2B, 7-LETCT-2B Installation, Operating And Service Manual
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F I L T E R
INSTALLATION, OPERATING AND
SERVICE MANUAL
BRONZE LINE LET
ELECTRONIC WATER FILTER
TIME CLOCK MODEL
FEATURING THE LETCV1F VALVE
COLOR, TASTE, ODOR
7-LETCT-1B
7-LETCT-2B
7-LETCT-3B
IRON FILTER
7-LETIM-1B
7-LETIM-2B
7-LETIM-3B
SEDIMENT/TURBIDITY
7-LETST-1B
7-LETST-2B
ACID NEUTRALIZERS
7-LETDAN-1B
7-LETDAN-1.5B
7-LETDAN-2B
7-LETDAN-3B
7-LETST-3B
Congratulations on purchasing your new Lancaster Water Filter. This unit is designed to give you
many years of trouble free service. For servicing and future inspection purposes, please le this
booklet with your important documents.
In the event that you need assistance for servicing your water lter, please rst contact the
professional contractor who installed the system.
PAGE 1
OPERATING PARAMETERS
Minimum / Maximum Operating Pressures 20 psi (138 kPa) - 125 psi (862 kPa)
Minimum / Maximum Operating Temperatures 40°F (4°C) - 110°F (38°C)
Current Draw & Voltage 0.5 Amperes - 110 Volts Other Options Available
GENERAL WARNINGS
The control valve, ttings and/or bypass are designed to accommodate minor plumbing misalignments but are not
designed to support the weight of a system or the plumbing.
HYDROCARBONS SUCH AS KEROSENE, BENZENE, GASOLINE, ETC., MAY DAMAGE PRODUCTS THAT
CONTAIN O-RINGS OR PLASTIC COMPONENTS. EXPOSURE TO SUCH HYDROCARBONS MAY CAUSE THE
PRODUCTS TO LEAK. DO NOT USE THE PRODUCT(S) CONTAINED IN THIS DOCUMENT ON WATER SUPPLIES
THAT CONTAIN HYDROCARBONS SUCH AS KEROSENE, BENZENE, GASOLINE, ETC.
THIS WATER METER SHOULD NOT BE USED AS THE PRIMARY MONITORING DEVICE FOR CRITICAL OR
HEALTH EFFECT APPLICATIONS
Do not use Vaseline, oils, other hydrocarbon lubricants or spray silicone anywhere. A silicone lubricant may be used on
black o-rings but is not necessary.
The nuts and caps are designed to be unscrewed or tightened by hand or with the special plastic wrench. If necessary a
pliers can be used to unscrew the nut or cap. Do not use a pipe wrench to tighten or loosen nuts or caps. Do not place a
screwdriver in the slots on caps and/or tap with a hammer.
Do not use pipe dope or other sealants on threads. Use Teon tape on the threaded inlet, outlet and drain ttings. Teon
tape is not necessary on the nut connection or caps because of o-ring seals.
After completing any valve maintenance involving the drive assembly or the drive cap assembly and pistons unplug power
source jack from the printed circuit board (black wire) and plug back in or press and hold NEXT and REGEN buttons for 3
seconds.
This resets the electronics and establishes the service piston position. The display should ash all wording, then ash the
software version and then reset the valve to the service position.
All plumbing should be done in accordance with local plumbing codes. The pipe size for the drain line should be a
minimum of ½”. Backwash ow rates in excess of 7 gpm or length in excess of 20’ require ¾” drain line.
Solder joints near the drain must be done prior to connecting the drain line ow control tting. Leave at least 6” between
the drain line control tting and solder joints when soldering pipes that are connected on the drain line control tting.
Failure to do this could cause interior damage to the drain line ow control tting.
When assembling the installation tting package (inlet and outlet), connect the tting to the plumbing system rst and
then attach the nut, split ring and o-ring. Heat from soldering or solvent cements may damage the nut, split ring or o-ring.
Solder joints should be cool and solvent cements should be set before installing the nut, split ring and o-ring. Avoid getting
primer and solvent cement on any part of the o-rings, split rings, bypass valve or control valve.
Plug into an electrical outlet. Note: All electrical connections must be connected according to local codes. (Be certain the
outlet is uninterrupted.)
Install grounding strap on metal pipes.
This glass lled Noryl1 (or equivalent) fully automatic control valve is designed as the primary control center to direct
and regulate all cycles of a water softener or lter. When the LETCV1F control valve is manufactured as a softener, the
control valve can be ordered to perform downow or upow regeneration. When the LETCV1F control valve is set up as a
lter, the control valve can be set to perform downow regeneration or simply backwash. The control valve can be set to
regenerate on demand (consumption of a predetermined amount of water) and/or as a time clock (passage of a particular
number of days). The control valve can be set so that a softener can meet the Water Quality Association (WQA) Standard
S100 or NSF/ANSI Standard 44 efciency rating.
It is not recommended to change control valves from downow to upow brining or vice versa in the eld. The
valve bodies for downow and upow are unique to the regeneration type and should not be interchanged. A
mismatch of valve body and regeneration piston will result in hard water bypass during service.
PAGE 2
The control valve is compatible with a variety of regenerants and resin cleaners. The control valve is capable of routing
SERVICE
FROM WE LL PUMP
PRESSURE
TANK
IN
OUT
DRAIN
LINE
BYPASS SHOULD
BE PIPED IN IF
OPTIONAL BYPASS
VALVE IS NOT USED
TO 115V
RECEPTACLE
TOP VIEW
VALVES
BRINE
LINE
G
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the ow of water in the necessary paths to regenerate or backwash water treatment systems. The injector regulates
the ow of brine or other regenerants. The control valve regulates the ow rates for backwashing, rinsing, and the
replenishing of treated water into a regenerant tank, when applicable.
The control valve uses no traditional fasteners (e.g. screws); instead clips, threaded caps and nuts and snap type latches
are used. Caps and nuts only need to be rmly hand tightened because radial seals are used. Tools required to service
the valve include one small blade screw driver, one large blade screw driver, pliers and a pair of hands. A plastic wrench
is available which eliminates the need for screwdrivers and pliers. Disassembly for servicing takes much less time than
comparable products currently on the market. Control valve installation is made easy because the distributor tube can
be cut ½” above to ½” below the top of tank thread. The distributor tube is held in place by an o-ring seal and the control
valve also has a bayonet lock feature for upper distributor baskets.
The AC adapter comes with a 15 foot power cord and is designed for use with the control valve. The AC adapter is for dry
location use only. The control valve remembers all settings until the battery power is depleted if the power goes out. After
the battery power is depleted, the only item that needs to be reset is the time of day; other values are permanently stored
in the nonvolatile memory. The control valve battery is not rechargeable but is replaceable.
COMPONENTS:
MODEL
MINERAL TANK
(dia. & ht.)
(QUANTITY OF BAGS)
7-LETDAN-1B FG1047D, 10 X 47 (with dome plug) A8021 CALCITE - (2)
7-LETDAN-1.5B FG1054D, 10 X 54 (with dome plug) A8021 CALCITE - (3)
7-LETDAN-2B FG1348D, 13 X 48 (with dome plug) A8021 CALCITE - (4)
MIERAL-
7-LETDAN-3B FG1365D, 13 X 65 (with dome plug) A8021 CALCITE - (6)
7-LETIM-1B FG1044,10 X 44 A8007 BIRM - (1)
7-LETIM-2B FG1348, 13 X 48 A8007 BIRM - (2)
7-LETIM-3B FG1465, 14 X 65 A8007 BIRM - (3)
7-LETCT-1B FG1044,10 X 44 A8009 CARBON - (1)
7-LETCT-2B FG1348, 13 X 48 A8009 CARBON - (2)
7-LETCT-3B FG1465, 14 X 65 A8009 CARBON - (3)
7-LETST-1B FG1044,10 X 44 A8014 FILTER AG - (1)
7-LETST-2B FG1348, 13 X 48 A8014 FILTER AG - (2)
7-LETST-3B FG1465, 14 X 65 A8014 FILTER AG - (3)
Allow one foot of clearance to service the valve. Place lter in desired location close to water supply inlet, after pressure
tank, and near a source for waste water, (utility sink, oor drain or sewer line). A 115/120V, 60Hz uninterrupted outlet is
required. Keep lter far enough away from walls and other obstructions to allow enough room for servicing the unit. If a
water softener is also to be installed, generally it will be placed in line after the neutralizer or lter.
From water supply→ neutralizer → lter → softener → to service
INSTALLATION
Minerals must be added to the lter. Add the mineral by following these
steps:
• Mineral can be loaded via the 1-1/4” dome hole using a funnel if the
system purchased has this feature or through the 2-1/2” opening on
the top of the mineral tank.
• If loading from the top of the mineral tank, remove the control valve by
turning counter-clockwise.
• Plug or tape the distributor tube. (Figure A)
• Add the mineral. Do not overll. Leave a minimum of 10” at the top of
the tank. (Figure B)
• Remove the plug or tape.
• Water can be manually added at this time to begin the soaking
process.
PAGE 3
INSTALLATION CONT.
WS1TC & WS1.25 TC Manual Page 11
Set Time of Day
STEP 1U – Press SET
STEP 2U – Current time: Adjust hour with or . With 60 Hz line frequency detection on
power-up, timekeeping is 12 hour with PM indicator. With 50 Hz line frequency detection on
power-up, timekeeping is 24 hour without the PM indicator. Press SET to go to Step 3U.
STEP 3U – Adjust minutes with or . Press SET to exit Set Time of Day.
• Replace the control valve making sure that the distributor tube is inserted into the center hole of the bottom of the
control valve.
• Complete plumbing.
• Place the bypass valve in “BYPASS OPERATION”. (Figure 1)
• Plug the transformer into a 120V uninterrupted receptacle.
• Carbon should be soaked in water for at least one hour before backwashing at full-ow. The mineral is dry
and lling too quickly will result in the mineral plugging the drain line and valve assembly.
Plug
FIG. A
or
Tape
Tube
When
Adding
Minerals
Keep centered
on bottom
of tank
16"
MIN.
FIG. B
Valve
Distributor
Tube
Assembly
Mineral
Tank
Gravel
Support
Bed
439-101 3/4" to 1/2"
1-1/2" Solvent x 3/4" FPT
Worm Gear Type
Hose Clamp
13308 1/2" MPTx5/8"
Barbed Fitting,
Reducer Coupling
G-175 Air Gap
FIG. C
Example of an
air-gap set-up
(not provided)
5/8" Polytube
Drain Line
Drain
Pipe
DRAIN LINE: The 3/4” drain line elbow accommodates 5/8” poly tube or 3/4” NPT drain line connections. The nut and
poly tube insert for the 3/4” drain line elbow is designed for use with exible, semi-rigid poly tube only. The drain line elbow
can be rotated so the outlet can be oriented toward the nearest drain.
TO INSTALL 5/8” POLY TUBE DRAIN LINE: The poly tube insert is shipped attached to the drain line elbow’s locking
clip. Press the insert into the drain line (5/8” poly tube not included). Loosen nut of the drain line elbow. Press 5/8” poly
tube with insert into the drain line elbow until it seats on the back of the tting. Tighten nut.
The drain line must be piped to an open drain with air gap between the drain and the sewer lines (Fig. C). Under no
circumstances should there be a direct connection with sanitary sewage facilities. If it is necessary to run the drain pipe
overhead, (not to exceed 5’ above valve) be sure to increase the pipe size and follow all plumbing procedures to hold
friction and restrictions to a minimum.
SET TIME OF DAY
STEP 1U
SET
HOUR
STEP 2U
SET
HOUR
SET
HOUR
STEP 3U
STEP 1: Press and Hold SET HOUR for 3
seconds.
STEP 2: Current Time (hour): Set the hour of
the day using ▲ or ▼buttons. AM/ PM toggles
after 12. Pres SET HOUR to go to step 3.
STEP 3: Adjust minutes with ▲ or ▼. Press
SET HOUR to exit Set Time of Day.
POWER LOSS: Only the current time of day
will need to be reset if power is lost for greater
than 8 hours. If power is lost while the system
is regenerating, the control will complete
regeneration at the point of interruption once
power is restored.
ERROR MESSAGE: if “E1“, “E2”, “E3” or
“E4” appears on the display contact the OEM
for help. This indicates that the valve did not
function properly.
PAGE 4
Page 8 WS1TC & WS1.25 TC Manual
Installer Displays & Settings (1-99 Days Between Regeneration Option)
STEP 1ID – From normal mode, press SET + buttons simultaneously for 3 seconds and
release.
STEP 4ID – Days to Regen: Set the number of days between regenerations. The allowable range
is 1 to 99. Press SET to exit Installer Displays and Settings.
STEP 2ID – Regeneration Time Hour: Set the time for regeneration to start using or . Press
SET to go to the next step.
STEP 3ID – Regeneration Time Minutes: Set the time for regeneration to start using or .
Press SET to go to the next step.
HOUR
SET
SET REGENERATION TIME AND DAYS BETWEEN BACKWASHES
STEP 1ID
STEP 1: From normal mode, press SET HOUR + ▲ buttons simultaneously for 3 seconds and
release.
STEP 2ID
STEP 2: Backwash Time Hour: Set the time for backwash to start using ▲ or ▼. Press SET HOUR
to go to the next step.
SET
HOUR
STEP 3ID
SET
HOUR
STEP 4ID
SET
HOUR
Return to Normal Mode
STEP 3:Backwash Time Minutes: Set the time for backwash start using ▲ or ▼. Press SET
HOUR to go to the next step.
STEP 4: Days to Backwash: Set the number of days between backwash. The allowable range is 1
to 99. Press SET HOUR to exit.
PLACING UNIT INTO SERVICE: Make sure inlet and outlet valves are to their closed positions. Turn on main water
supply. Open a cold water faucet. This will clear the lines of any debris (solder, pipe dope, etc.) that may be in the line. Let
water run at tap for a couple of minutes, or until clear. Turn off faucet.
• Carbon should be soaked in water for at least one hour before backwashing at full-ow. The mineral is dry
and lling too quickly will result in the mineral plugging the drain line and valve assembly.
• Press and hold the ▲ and ▼ buttons. Advance to the BACKWASH position by pressing and releasing the ▲ button.
• Slowly turn the bypass valve to the DIAGNOSTIC MODE (Figure 2) to allow water to slowly enter the system. The
mineral is dry and lling too quickly will result in the mineral plugging the drain line and valve assembly.
• Unplug the control valve to keep the valve in the backwash position.
• Flow water to drain very slowly, gradually increasing the ow until water runs clear. This may take up to 30 minutes.
• Plug in the control valve.
• Advance the control to the SERVICE position by pressing and releasing the REGEN button.
• Place the bypass valve in the NORMAL OPERATION position. (Figure 3)
• It is common to have some very ne particles visible in the service line immediately after loading new mineral even
after initial backwash. This is temporary and will clear up after a few gallons of water have passed through the lter.
A sediment cartridge lter can be installed after a backwashing lter to capture these particles if their presence is
objectionable.
FIGURE 1
FIGURE 2
FIGURE 3
PAGE 5
FIGURE 4
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