Pallas Duo User manual

Operating instructions
Pallas Duo

2
Index
1 General ------------------------------------------------------------------3
2 Presentation-----------------------------------------------------------4 to 5
3General installation notes------------------------------------------------6
4 Installation instructions--------------------------------------------------7
5Programming--------------------------------------------------------------8
6 Description of function --------------------------------------------------9
7 Wiring diagrams --------------------------------------------------10 to 11
8Exploded diagrams -----------------------------------------------12 to 18
9Fault finding ------------------------------------------------------18 to 20
10 Appendix A -------------------------------------------------------------21

3
1 General
We thank you for having chosen the Pallas Duo, we hope that this product will give you complete
satisfaction. The greatest care was taken with its manufacture.
The Pallas Duo is delivered in a cardboard box together with a by-pass (optional). Please check the
softener carefully, in the presence of the deliveryman, to ensure you that it was not damaged during
transport.
The instructions described in this handbook must be respected to the letter. Before starting to use the
softener, read entirely and carefully this handbook. Handle your softener with care.
The Packaging can be fully recycled, please dispose of it in a suitable place.
Here is some information which will enable you to use the softener, as well as its possible capabilities.

4
2 Presentation
View of the Softener
Salt lid
Salt Stora
g
e
Control time
r
Resin tanks
Control Valve
By-pass (bronze option)
Raw water inle
t
Treated water outlet
Flexible tubes
(
o
p
tion
)
Drain connection

5
2 Presentation
The valve alternates automatically between the service and regeneration cycles.
With the valve in service, it is possible to change the time of day, the valve program or initiate a regeneration.
Pro
g
ram button
Regeneration
Initiation button
Indicator :
Valve in service- diode
alluminated
Regeneration tonight :
diode flashing
Flow Indicator :
The diode flashes
when water is used
Chlorinator option :
diode alluminated
during Chlorination
SERVICE
BRINE DRAW
AND
SLOW RINSE
SALT TANK
REFILL
INDICATION OF THE
TANK IN SERVICE

6
3 General installation notes
1 Pressure
A minimum pressure of 1,8 bar (30psi) is necessary in order that the valve regenerates correctly. Do not exceed 8.0 bar
(120 psi). If the case arises a pressure regulator must be installed before the installation
2 Electrical connection
Make sure that the power supply cannot be cut by a switch upstream of the installation. If the electric cable is damaged, it
must be replaced by a qualified person.
3 Existing plumbing
It must be in good condition and not furred up. In case of doubt, it is preferable to replace it. The installation of a prefilter is
always advised.
4 Water Temperature
The temperature of water should not exceed 35 °C and the installation should not be subjected to freezing conditions (risk of
very serious damage).

7
4 Installation notes
When you choose the site for your Pallas Duo, please take into account the following points and procedures:
1) To install your Pallas Duo in the chosen place, ensure that the floor is clean, flat and stable (If necessary, put a board under
the softener to ensure a level area ). There must always be a drain tundish adjacent to where the softener is to be installed to
allow the regeneration water to run-off. A power socket protected by a RSB and suitably earth bonded must be sited adjacent
to the softener.
2) In cold weather, it is recommended that the Pallas Duo is bought up to ambient temperature before proceeding with the
installation. The Pallas Duo must posititioned so that it is protected from freezing. Do not install the unit where it is exposed to
direct sunlight or high temperatures (45 °C max).
3) Plumbing must be installed according to the local bylaws and regulations in force. The size of the drain tube must be at least
13 mm (1/2").
4) The soldered joints on the principal plumbing and the connection to the drain pipe must be carried out before the Pallas Duo
is connected to prevent any damage to the softener. For all interventions, isolate the water supply at the stop cock and
disconnect the electrical supply.
5) Fill the salt reservoir with 50mm (2") water. Do not add salt for the moment.
6) Put the by-pass valve of your Pallas Duo in the "by-pass" position. Open the raw water feed tap and a cold water tap in the
vicinity run for a few minutes until all of the pipes are rinsed of any residual foreign bodies (solder remains). Turn off the raw
water feed tap and cold tap when water runs clear.
7) Put the by-pass valve in the "service" position and let the water run into the resin tanks. When the water flow stops, open a
cold water tap and let run in order to purge the air remaining in the resin tank. Repeat for the second resin tank.
8) Connect the softener electrically. Once powered, the valve may cycles itself and turn over the position service.
9) The valve includes an indicator to inform the fitter of its position: the wheel directly below the motor indicates the bottle
that is currently in the service position. The Digital display on the front of the softener alternates between the volume
remaining in the tank in service, the number of the tank in service (U-1 or 2 corresponds with the wheel: "INDICATION OF
the TANK IN SERVICE") and the time of the day.
Important: to understand various dislays, please see the following chapter: Programming.
10) Initiate a regeneration and bring the valve to cycle 1, by pressing the regeneration button. The valve begins by
transfering from one tank to the other and then entering the regeneration cycle of the tank that was in service. The water runs
until the system is purged of the air. Once the air is completely evacuated, it enters the Brine draw & slow rinse stage and then
into brine refil. On return to the service position repeat the precedure. This allows the complete purge of the second bottle
.
11) The installation must be carried out under hygienic conditions. It is recomended that annual maintenance is
undertaken by qualified personnel.

8
5 Programming
1. Programming the time of day
Press the -or +keys to adjust the time of day per minute. Prolonged holding of either the -or +keys will accelerate the
changes.
2. Programming the valve
2.1. Enter the programming mode
Press and hold both of the - and + keys for 5 seconds to enter the programming mode.
2.2. Change of program and modifications
Press the key to pass from one stage to the next until leaving the program and returning in service. To use the- or + keys
to modify the programmed values.
The programmed values.
Note: it is necessary to pass through all of the programming stages and to return to service position so that any modifications to
the program are saved.
The first stage of the programming mode corresponds to the system capacity. The capacity is expressed
in US gallons, litres or in m3(format US/metric or m3). For example : 6500 litres
The second stage allows the adjustment of the time of regeneration. For example : 2 Oclock in the
morning.
The third stage is a calander day overide. (maximum number of days between 2 regenerations). For
example : a regeneration at least every 7 days.
Press the key to return to the service position. The programming is finished.
3. Initiate a manual regeneration
In the event of prolonged absence, and of non use of your Pallas Duo, it is necessary to initiate a manual regeneration.
There are two ways to initiate a manual regeneration:
1. To press the key: if an immediate regeneration is programmed, the valve will instantly start the regeneration
2. To press and hold the key for 5 seconds: - in both cases, a regeneration will start instantantly

9
6 Description of function
Regeneration volumetric immediate
Under normal operation, the display alternates between the time of day,the volume remaining and the tank in service.
(U1 or U2). The volume display is in litres. Progressively with the use, the volume remaining display decreases from
the maximum value down zero or (- - - -). When this occurs, a regeneration is started immediately. A water flow is
indicated by the flow diode that flashes at a varying speed according to the water flow. For example:
Volume remaining 530 litres
Volume remaining 0 litre
* For capacity figures please refer to Apendix A
Immediate volumetric regeneration with a calendar overide
When the set number of days between each regeneration is reached, a regeneration is started immediately. Regeneration
occurs whether or not the volume remaining has reached zero.
Control during a regeneration
During regeneration, the valve will display the number of the regeneration cycle stage to be reached (display flickering)
or reached and remaining time for this cycle (fixed display). Once all of the regeneration cycles are carried out, the
valve returns to the service position. For example:
The regeneration is in stage 2 with twenty-seven minutes remaining.
To step from one cycle stage to the next during regeneration, press the key. This will have no effect if the valve is
already moving between two cycles.
Operation in programming mode
One can enter the programming mode only if the valve is in service. During the programming mode, the valve still
operates normally and records all information. The valve program is stored in a non volatile memory.
Operation during a power interruption.
During a power outage, all the data is saved to be restored once the power is returned. The programmed data can be
stored for years without loss. The Electronics will be inoperative during power outage and any programmed
regeneration will be delayed. The Electronics restores all information from the moment to which the power stopped. An
incorrect time will indicate that there was a power interuption.

10
7 Wiring Diagram
Up Flow

11
7 Wiring Diagram
Up Flow + Chlorinator

12
8 Exploded Diagram
Power Head - Up Flow (Ref : 28396)

13
8 Exploded Diagram
Power Head - Up Flow (Ref : 28396)
ITEM QTY PART No DESCRIPTION
1 1 10218 MICROSWITCH
2 1 10302 INSULATOR
3 2 10339 NUT
4 1 11086 SCREW M3 X 0.50
5 2 11335 SCREW FILLISTER HEAD # 4-40 x 0.19
6 2 11663 LOCK WASHER
7 4 13296 SCREW # 6-20 x 0.50
8 1 13547 STRAIN RELIEF
9 1 14896 GENEVA WHEEL
10 2 14917 RETAINING CLIP
11 1 14921 PISTON ROD LINK UPPER
12 1 15019 PISTON ROD LINK LOWER
13 1 15132 TRIPLE CAM
14 1 15135 DRIVE GEAR 9000
15 2 15172 SCREW FLAT HEAD # 4-40 x 1.38
16 1 15199 GROUND PLATE 9000/9500
17 2 15372 THRUST WASHER
18 2 15692 SPACER
19 2 15810 RETAINING CLIP
20 1 16433 MICROSWITCH
21 1 17315 DRIVE NUT 9000/9500
22 1 18737 MOTOR 24V50HZ - 1RPM
23 2 19160 SCREW
24 1 21271 SERIAL NUMBER LABEL
25 2 23250 WASHER SS LN .4
26 1 23474 LABEL ASSY BY
27 1 23653-06 TERMINAL BLOCK 06 POSITIONS
28 1 24934 TERMINAL BLOCK LABEL
29 1 25651 TRANSFORMER
30 1 25868 DRIVE GEAR UPPER ASSEMBLY
31 1 25870 DRIVE GEAR LOWER ASSEMBLY
32 1 27002 LABEL SHAFT POSITION
33 1 27712 MOTOR PROTECTOR
34 1 28207 BACK PLATE 9120
35 1 28330 HARNESS 9120
36 1 40422 WIRE NUT

14
8 Exploded Diagram
Power Head - Up Flow + chlorinator (ref : 28363)

15
8 Exploded Diagram
Power Head - Up Flow + chlorinator (ref : 28363)
ITEM QTY PART No DESCRIPTION
1 1 10218 MICROSWITCH
2 1 10302 INSULATOR
3 2 10339 NUT
4 1 11086 SCREW M3 X 0.50
5 2 11335 SCREW FILLISTER HEAD # 4-40 x 0.19
6 2 11663 LOCK WASHER
7 2 11882 SWITCH STAND OFF
8 4 13296 SCREW # 6-20 x 0.50
9 1 13547 STRAIN RELIEF
10 1 14896 GENEVA WHEEL
11 2 14917 RETAINING CLIP
12 1 14921 PISTON ROD LINK UPPER
13 1 15019 PISTON ROD LINK LOWER
14 1 15135 DRIVE GEAR 9000
15 1 15199 GROUND PLATE 9000/9500
16 2 15372 THRUST WASHER
17 2 15692 SPACER
18 2 15810 RETAINING CLIP
19 1 16433 MICROSWITCH
20 1 16442 SCREW AUX SWITCH
21 1 17315 DRIVE NUT 9000/9500
22 1 17592 CAPACITOR
23 2 25651 TRANSFORMER
24 1 18737 MOTOR 24V50HZ - 1RPM
25 2 19160 SCREW
26 1 21271 SERIAL NUMBER LABEL
27 1 23250 WASHER SS LN .4
28 1 23474 LABEL ASSY BY
29 1 23653-06 TERMINAL BLOCK 06 POSITIONS
30 1 23950-10 CHLORINATOR MICROSWITCH ASSY
31 1 24934 TERMINAL BLOCK LABEL
32 1 25868 DRIVE GEAR UPPER ASSEMBLY
33 1 25870 DRIVE GEAR LOWER ASSEMBLY
34 1 27002 LABEL SHAFT POSITION
35 1 27712 MOTOR PROTECTOR
36 1 28207 BACK PLATE 9120
37 1 28330 HARNESS 9120
38 1 28395 TRIPLE CAM ASSY
39 1 40422 WIRE NUT

16
8 Exploded Diagram
Valve Body Assembly (Ref : 28238)
ITEM QTY PART No DESCRIPTION
1 1 13361 SPACER INJECTOR
2 1 13497 AIR DISPERSER
3 1 14906 END PLATE
4 1 14928 END PLUG STUD
5 4 15137 SCREW HEX WASHER HEAD 10-24 X 3/8"
6 1 28246 INJECTOR ASSEMBLY 9100 UF
7 1 28173 PISTON LOWER ASSEMBLY 9000 UF
8 1 25642 SEAL & SPACER KIT 9000/91000
9 1 28241 VALVE BODY & DISTRIBUTOR ADAPTOR 9100
10 1 24234 PISTON UPPER ASSEMBLY 9100 UF

17
8 Exploded Diagram
Second tank adaptor assembly
ITEM QTY P/N DESCRIPTION
1 1 18303-01 O'ring
2 1 18569 Retainer tank seal
3 1 19054 O'ring
4 1 40673 2nd tank adapter
5 1 40538 O'ring retainer 32mm
6 1 61419 Distributor adapter kit
10 1 13304-01 O'ring
7 2 13255 Clip
8 2 14202-01 Screw
A 1 28243-07 Tube assembly 9100 for 7" tank
9 4 13287-01 O'ring

18
8 Exploded diagram
Water meter ¾ assembly
ITEM QTY PART No DESCRIPTION
1 1 19797 METER BODY ASSY ¾" TURBINE
2 2 19569 CLIP, FLOW METER
3 2 13314 SCREW HEX WASHER HEAD 8 - 18 x .60

19
9 Fault finding
PROBLEM CAUSE REMEDY
1. Softener fails to regenerate. A. Electrical service to unit has been
interrupted.
A. Assure permanent electrical supply
(check fuse, plug, pull, chain or switch).
B. Timer is defective. B. Replace timer.
C. Motor is defective. C. Replace Motor.
D. Water meter cable disconnected D. Reconnect the meter cable
E. Defective water meter E. Replace the water meter
2. Hard Water A. By-pass open A. Close the By-pass
B. Nosalt in brine tank B. Add Salt to brine tank and maintain
salt level above water level.
C. Injector screen blocked C. Clean injector screen.
D. Insufficient water in the brine tank D. Check brine tank fill time and clean
brine line flow control if plugged
E. Hot water tank hardness E. Repeated flushing of the hot water
tank is required.
F. Leak at distributor tube F. Make sure distributor tube is not
cracked. Check O-Ring and tube
pilot.
G. Internal valve leak G. Replace seals and spacers and/or
piston.
H. Water meter blocked A. Clean or Replace the water meter
I. Water meter cable disconnected B. Reconnect the meter cable
3. Unit used too much salt. A. Improper salt setting. A. Check salt usage and salt setting.
B. Excessive water in brine tank. B. See Problem n°6
4. Loss of water pressure. A. Iron buildup in line to water softener. A. Clean line to water softener
B. Iron buildup in water conditioner. B. Clean control valve and add mineral
cleaner to resin bed. Increase
frequency of regeneration and/or
backwash time.
C. Clogged resin C. Contact your retailer
D. Inlet of control plugged due to foreign
material broken loose from pipe by recent
work done on plumbing system.
D. Remove pistons and clean control.
5. Iron in softened water. A. Fouled resin bed. A. Check backwash, brine draw and
brine tank fill. Increase frequency
of regeneration.
B. The iron level excedes the recomended
parameters
B. Contact your retailer
6. Excessive water in brine tank. A. Plugged drain line flow control. A. Check flow control.
B. Plugged injector system B. Clean injector and screen.
C. Foreign material in brine valve. C. Replace brine valve seat and clean
valve.
D. Power loss during brine fill. D. Check power source.
E. Foreign material in BLFC. E. Clean brine line flow control.
7. The valve does not regenerate A. The valve controller does not function
correctly.
A. Change the controller
B. Microswitch defective B. Change the microswitch
A. Defective Cam C. Change the cam

20
9 Fault finding
PROBLEM CAUSE REMEDY
8. Softener fails to draw brine. Drain line flow control is plugged. A. Clean drain line flow control
B. Injector is plugged. B. Clean injector
C. Injector screen plugged. C. Clean screen.
D. Line pressure is too low. D. Increase line pressure to 25 psi min
E. Internal Control Leak E. Change seals, spacers and piston
assembly.
9. Drain flows continuously. A. Valve is not programming correctly. A. Check timer program and positioning
of control. Replace power head assembly
if not positioning properly
B. Foreign material in control valve. B. Remove power head assembly and
inspect bore, remove foreign
material and check control in various
regeneration positions
C. Internal control leak. C. Replace seals and piston assembly.
D. Valve stopped in regeneration D. Change the motor
10. Control cycles continuously. A. Defective Microswitch A. Replace microswitch
B. The valve controller does not function
correctly.
B. Change the controller
11. Loss of capacity A. Increase in water hardness A. Change the capacity of the softener
B. Concentration or quantity of salt
insuffiscient
B. Break up any salt concretions. Make
sure that there is sufficient water level
in tank
C. Clogged resin C. Contact your retailer
D. Bad distribution, preferential flow
(irregular surface of the bed)
D. To check the distributors and the
bacwash flow
E. Valve internal leak E. To change the seals and spacers
and/or the piston assembly
F. Resin loss F. Check that the height of the resin bed
is correct, Check the distributor tube is
not broken.. Air pocket in the resin bed
caused by damaged brine tube.
12. Salty Water A. Filter and injector blocked A. Clean the injector and filter
B. The controller does not carry out the cycles
correctly
B. Check and replace if necessary.
C. Foreign body in the valve with brine C. check and clean, change if necessary
D. Line pressure is too low. D. Increase line pressure to 25 psi min
If you note one of the problems quoted above, please contact your retailer.