SENTRY II 960SM Series User manual

Single Metered Water Softening System
Owner’s Manual
Series 960SM

2
Table of Contents
System Specifications and Warnings ............................................................................... 3
Start-Up Instructions .......................................................................................................... 4
Series 960 Control Valve Programming ........................................................................... 5
Manually Regenerating the Water Softener ..................................................................... 8
Bypass Valve Operation ..................................................................................................... 9
Troubleshooting the Control Valve ................................................................................. 10

3
System Specifications
Water pressure: 40 psi minimum 100 psi Maximum
Water Temperature: 40°F to 110°F
Electrical Requirements:
Supply Voltage: 120V
Supply Frequency: 60Hz
Output Voltage: 12V AC
Output Current: Maximum 3.0 Amps
Water Meter:
Pipe Size: 3/4”-1”
Accuracy: ± 5%
Minimum Flow : 0.25 GPM
Control Valve to Tank Connection: 2.5”-8UN
Control Valve Distributor Pipe Connection: 1”
Circuit Board Memory: NonVolatile EEPROM (Electrical Erasable Programmable Read Only Memory)
Compatible with the following typical concentrations of regenerant chemicals: Sodium Chloride, Potassium
Chloride, Potassium Permangenate, Sodium Bisulfite, Chlorine and Chloramines
Warnings
The control valve and fittings are not designed to support the weight of the system or the
plumbing.
Do not use Vaseline, oils, other hydrocarbon lubricants or spray silicone anywhere. A
silicone lubricant may be used on black O-rings.
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.
The water meter should not be used as the primary monitoring device for critical or health
effect applications.
Do not use pipe dope or other sealants on threads. Teflon tape is recommended to be
used on all threads. Use of pipe dope may break down the plastics in the control valve.
System Specifications and Warnings

4
Start-Up
To begin, place the bypass in the position shown in Figure 1.
Place the softener in the Backwash cycle.
•To place the softener in the Backwash cycle press
and hold the REGEN button (approx. 6 seconds) until
the control valve initiates a regeneration cycle. The
softener is now in the Backwash cycle. An initial burst
of air will be released to the drain. Leave the unit in
the Backwash cycle until the water running to the
drain runs clear.
•Press the REGEN button to advance the controller to
the next cycle. The softener is now in the Brine/Slow
Rinse cycle.
•When the timer begins countdown press the REGEN
button to advance the controller to the next cycle. The
softener is now in the 2nd Backwash cycle.
•When the timer begins countdown press the REGEN
button to advance the controller to the next cycle. The
softener is now in the Fast Rinse cycle. Leave the
unit in the Fast Rinse cycle for at least five minutes.
•While the system is rinsing manually fill the brine tank
with fresh water until there is approximately 2” of
water above the false bottom.
•Press the REGEN button to advance the controller to
the next cycle. The softener is now in the Brine Tank
Fill cycle. Leave the unit in the Brine Tank Fill cycle
for at least one minute. This will ensure that there is
no air trapped in the brine tubing and valve.
IMPORTANT:
After the unit has filled for approximately 1
minute, raise the float to shut off the flow of water
and then check the float valve, brine tubing and
connections for leaks.
•Press the REGEN button to advance the controller to
the home position.
•Salt may be placed in the unit at this time.
To complete the Start-up place bypass in the position shown
in Figure 2
Start-Up Instructions
Figure 1
Figure 2

5
Control Valve Programming
Series 960
Control Valve Programming

6
Control Valve Programming
Programming
SET
CLOCK NEXT REGEN
Step 1
SET
CLOCK NEXT
SET HARDNESS
20
Step 2
SET
CLOCK
REGEN
SET
15
Step 3
REGEN
DAY
SET
CLOCK
NEXT
REGEN
REGEN
2:00
AM
GAL
Step 4
Exit
Programming
Mode
NEXT
The control valve has been pre-programmed from the factory with the correct regeneration cycle program and
cycle times. The gallon capacity between regeneration can be changed by adjusting the water hardness.
Step 1 - Press the NEXT and the UP Arrow buttons at the same time and hold for 3 seconds.
Step 2 - Raw Water Hardness:Adjust to the correct hardness by pressing the UP or DOWN
arrow button. Default setting 20 grains per gallon. Press NEXT to go to Step 3.
Step 3 - Day Override:The factory default setting is 15 days. Press NEXT to go to Step 4.
Step 4 - Regeneration Time: The system regenerates at 2:00 AM. The regeneration cycle should
be set for a time when no water will be used. (Typically this is during the night.) Press the
UP or DOWN arrow buttons to adjust the regeneration hour. Press NEXT to adjust the
regeneration time minutes then press NEXT to exit programming.
REGEN

7
2890
Screen 2
5:20
SET
CLOCK
NEXT
4:35
5:20
Step 1
SET
CLOCK NEXT REGEN
Normal Operating Screens
Screen 1 - Current Time of Day
Screen 2 - Capacity Remaining in Gallons
SET
CLOCK NEXT
REGEN
CAPACITY REMAINING
GAL
Screen 1
TIME
PM
Exit
Programming
Mode
SET
CLOCK
The time of day should only need to be set after initial installation or after an extended power outage. If an
extended power outage has occurred, the time of day will flash indicating that it needs to be set.
Step 1 - Press SET CLOCK
Step 2 - Current Time of Day - Hours: Adjust to the correct hour by pressing the UP or DOWN
arrow button. Press NEXT to go to Step 3.
Step 3 - Current Time of Day - Minutes: Adjust to the correct minutes by pressing the up or down
arrow button. Press NEXT to return to the normal operating screen.
During normal operation one of three screens can be displayed.
Pressing the NEXT button alternates between these screens.
SET
CLOCK
NEXT
NEXT
REGEN
REGEN
REGEN
Step 2
Step 3
SET TIME
SET TIME
PM
PM
Control Valve Programming
Set the Time of Day

8
Manually Regenerating the Water Softener
There are two different methods for manual regeneration of the water softener.
•Delayed Regeneration
•Immediate Regeneration
Reasons you may want to manually regenerate the water softener:
1. If the brine tank has run out of salt:
•After adding salt to the brine tank manually regenerate the softener using the
delayed regeneration method. (The water needs time to dissolve the salt for a
minimum of eight hours.)
•To initiate a delayed regeneration simply push the REGEN button one time.
(Don’t hold the button down) REGEN TODAY will appear on the left hand side of
the screen. The softener is queued to regenerate that day at the preset
regeneration time. (Typically this is during the night.) If for some reason you want
to cancel the delayed regeneration just push the REGEN button again. REGEN
TODAY will no longer be visible on the screen.
2. If you have guests coming to stay in your home:
•The water softener is programmed to measure the specific water usage of your
family and regenerates based on water usage history. If you know that there will
be extra people using the water you may want to manual regenerate the softener
using the delayed regeneration method.
•To initiate a delayed regeneration simply push the REGEN button one time.
(Don’t hold the button down) REGEN TODAY will appear on the left hand side of
the screen. The softener is queued to regenerate that day at the preset
regeneration time. (Typically this is during the night.) If for some reason you want
to cancel the delayed regeneration just push the REGEN button again. REGEN
TODAY will no longer be visible on the screen.
3. If the water is hard:
•The quickest way to get soft water in your home is by initiating an immediate
regeneration of the water softener.
•To initiate an immediate regeneration of the water softener push and hold the
REGEN button for approximately six seconds. The unit will immediately begin its
regeneration cycle and water will be running to the drain. (When the softener has
completed the manual regeneration the system will automatically return to its
preset normal operations.)
Note: After an immediate regeneration of the water softener there is typically a delay
of three to four days to purge the system i.e. water heater, pipes etc. of the hard
water. If you are experiencing hard water after the three to four day period has
passed, you may need to contact a service professional.

9
Bypass Valve Operation
Normal Operation
Bypass Operation
Diagnostic Mode
Shut Off Mode

10
Problem
Possible Cause
Solution
No display on Control Valve
Circuit Board
No power at electrical outlet Repair outlet or use working outlet
Control Valve Power Cord not plugged
onto Control Valve Circuit Board
Make sure Control Valve Power Cord is
connected securely at both ends
Improper power supply Verify proper voltage is being delivered to
Circuit Board
Defective Circuit Board Replace Circuit Board
Control Valve Circuit Board
does not display correct time
of day
Control Valve Power Cord plugged into
electric outlet controlled by light switch
Use uninterrupted outlet
Tripped Breaker Switch and/or tripped GFI Reset Breaker Switch and/ or GFI switch
Power outage
Reset time of day. If Circuit Board has
battery back up present, the battery may
be depleted. Replace if necessary.
Defective Circuit Board Replace Circuit Board
Display does not indicate that
water is flowing. (Normally the
word “Softening” flashes on
the display when water is
being used.)
Bypass valve in bypass position
Turn Bypass Handles to place Bypass in
service position
Meter is not connected to meter connection
on Circuit Board or is not connected
securely
Connect Meter to three-pin connection
labeled METER on Circuit Board. Remove
and reconnect to ensure proper
connection
Restricted/ stalled Meter Turbine
Remove Meter and check for rotation or
foreign material
Defective Meter Replace Meter
Defective Circuit Board Replace Circuit Board
Time of day flashes on and off Power outage
Reset time of day. If Circuit Board has
battery back up present, the Battery may
be depleted. Replace if necessary.
Control valve does not
regenerate automatically when
the REGEN button is
depressed and held.
Broken Drive Gear or Drive Cap Assembly Replace Drive Gear or Drive Cap
Assembly
Broken Piston Rod
Replace Piston Rod
Defective PC Board Defective PC Board
Control valve does not
regenerate automatically but
does when the REGEN button
is depressed and held.
Bypass Valve in bypass position Turn Bypass Handles to place Bypass in
service position
Meter is not connected to meter connection
on Circuit Board or is not connected
securely
Connect Meter to three pin connection
labeled METER on Circuit Board. Remove
and reconnect to ensure proper
connection
Restricted/ stalled Meter Turbine Remove Meter and check for rotation or
foreign material
Incorrect programming Check for programming error
Defective Meter Replace Meter
Defective Circuit Board Replace Circuit Board
Troubleshooting the Control Valve

11
Problem
Possible Cause
Solution
Hard or untreated water is
being delivered
Bypass Valve is open or faulty
Fully close Bypass Valve or replace. Also
check for multiple bypasses
Media is exhausted due to high water
usage
Check program settings or diagnostics for
abnormal water usage
Meter not registering
Remove Meter and check for rotation or
foreign material
No Salt or low level of Salt in Brine Tank Add proper type of salt to Brine Tank
Insufficient brine level in Brine Tank
Check refill setting in programming. Check
Refill Flow Control for restrictions or debris
and clean or replace
Damaged Seal and Spacer Stack
Assembly
Replace Seal and Spacer Stack Assembly
Control valve body type and piston type
mix matched
Verify proper control valve body type and
piston type match
Fouled media bed Replace media bed
System uses too much salt
Improper refill setting Check refill setting
Improper program settings
Check program setting to make sure they
are specific to the water quality and
application needs
Control valve regenerates frequently
Check for leaking fixtures that may be
exhausting capacity or system is
undersized
Slow drip from brine refill tubing. Float
Valve is not designed to shut off a drip
Replace Seal and Spacer Stack Assembly
Troubleshooting the Control Valve
To obtain a complete service manual with parts breakdown visit www.pacificwaterinc.com

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OM-A960SM
Printed in the USA
Version 160915.1