Pentair AUTOTROL MAGNUM 293 User guide

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INSTALLER
MANUAL
AUTOTROL
MAGNUM 293 - 298
LOGIX 742-762
INDUSTRIAL

Installer manual Autotrol Magnum 293 - 298 Logix 742-762 - Table of Contents
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Table of Contents
1 Generalities..................................................................................... 6
1.1 Scope of the documentation ....................................................................... 6
1.2 Release management ................................................................................. 6
1.3 Manufacturer identifier, product ................................................................ 6
1.4 Abbreviations used...................................................................................... 7
1.5 Norms.......................................................................................................... 7
1.5.1 Applicable norms ................................................................................................ 7
1.5.2 Available certificates........................................................................................... 7
1.6 Procedure for technical support................................................................. 8
1.7 Copyright and Trademarks ......................................................................... 8
1.8 Limitation of liability.................................................................................... 8
1.9 Scan & Service application.......................................................................... 8
2 Safety .............................................................................................. 10
2.1 Safety pictograms definition ....................................................................... 10
2.2 Serial label location..................................................................................... 11
2.3 Hazards........................................................................................................ 11
2.3.1 Personnel ............................................................................................................ 11
2.3.2 Material ............................................................................................................... 11
2.4 Hygiene and sanitization ............................................................................. 12
2.4.1 Sanitary issues .................................................................................................... 12
2.4.2 Hygiene measures............................................................................................... 12
3 Description ...................................................................................... 13
3.1 Introduction to the Magnum Cv and Magnum IT valves series .................. 13
3.2 Technical specifications .............................................................................. 14
3.3 Performance flow rate characteristics....................................................... 15
3.4 Outline drawing ........................................................................................... 16
3.5 Components description and location ........................................................ 17
3.6 Options available on the valve..................................................................... 18
3.6.1 6" flange plastic tank adapter............................................................................. 18
3.6.2 Refill first............................................................................................................. 19
3.6.3 External pilot feed adapter ................................................................................. 19
3.6.4 Magnum switch kit .............................................................................................. 20
3.6.5 Hydraulic output signal ....................................................................................... 25
3.7 Systems regeneration cycle........................................................................ 26
3.7.1 298 Valves (5 - Cycle softener)............................................................................ 26
3.7.2 293 Valves (3 - Cycle filter).................................................................................. 28
4 System sizing................................................................................... 29

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4.1 Recommendations ...................................................................................... 29
4.1.1 Injector and Refill controller charts ................................................................... 29
4.1.2 Drain line flow control......................................................................................... 29
4.1.3 Recommended backwash flow rates for various media .................................... 30
4.2 Cycle time calculation ................................................................................. 31
4.3 Injector flow rates ....................................................................................... 31
4.4 Standard efficiency exchange capacity....................................................... 33
5 Installation ...................................................................................... 35
5.1 Safety notices for installation ..................................................................... 35
5.2 Installation environement ........................................................................... 35
5.2.1 General ................................................................................................................ 35
5.2.2 Electrical ............................................................................................................. 35
5.2.3 Mechanical .......................................................................................................... 36
5.2.4 Outdoor Locations ............................................................................................... 36
5.3 Integration constraints................................................................................ 37
5.4 Block diagram and configuration example................................................. 38
5.5 Valve connection to piping........................................................................... 40
5.5.1 Top-mounted valve installation .......................................................................... 40
5.5.2 Side-mounted valve installation ......................................................................... 42
5.6 Connections (electrical) .............................................................................. 43
5.7 Bypassing .................................................................................................... 43
5.8 Drain line connection .................................................................................. 44
5.9 Overflow line connection............................................................................. 45
6 Programming .................................................................................. 46
6.1 Display ......................................................................................................... 46
6.2 Commands .................................................................................................. 48
6.3 Basic programming..................................................................................... 49
6.3.1 Basic programming mode chart 742-762/298 valve type................................... 49
6.3.2 Basic programming mode chart 742F-762F/293 valve type .............................. 50
6.3.3 Basic programming 742 - 762/298 valve type .................................................... 51
6.3.4 Basic programming 742F - 762F/293 valve type ................................................ 54
6.4 Advanced programming.............................................................................. 56
6.4.1 Basic programming parameters (5 - Cycle softener system)............................ 56
6.4.2 Advanced programming parameters (5 - Cycle softener system)..................... 57
6.4.3 Basic programming parameters (3 - Cycle filter system) ................................. 58
6.4.4 Advanced programming parameters (3 - Cycle filter system)........................... 58
6.4.5 Cycle time programming .................................................................................... 60
6.4.6 Diagnostic............................................................................................................ 61
6.4.7 Resetting the controller...................................................................................... 62
7 Commissioning................................................................................ 63
7.1 Water filling, draining and waterproofness inspection .............................. 63

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7.1.1 Activating the softener ........................................................................................ 63
7.1.2 Additional tips...................................................................................................... 65
7.2 Sanitization .................................................................................................. 65
7.2.1 Disinfection of water softeners........................................................................... 65
7.2.2 Sodium or calcium hypochlorite ......................................................................... 65
7.2.3 Electro chlorination............................................................................................. 66
8 Operation......................................................................................... 67
8.1 Recommendations ...................................................................................... 67
8.2 Manual regeneration................................................................................... 67
8.3 To advance regeneration cycles.................................................................. 68
8.4 To cancel a regeneration ............................................................................ 68
9 Maintenance .................................................................................... 69
9.1 293 CV / IT: General system inspection ...................................................... 69
9.1.1 Water quality ....................................................................................................... 69
9.1.2 Mechanical Checks ............................................................................................. 69
9.1.3 Regeneration test................................................................................................ 70
9.2 293 CV / IT: Recommended maintenance plan........................................... 70
9.3 298 CV / IT: General system inspection ...................................................... 71
9.3.1 Water quality ....................................................................................................... 71
9.3.2 Mechanical Checks ............................................................................................. 71
9.3.3 Regeneration test................................................................................................ 72
9.4 298 CV / IT: Recommended maintenance plan........................................... 72
9.5 Recommendations ...................................................................................... 74
9.5.1 Use original spare parts...................................................................................... 74
9.5.2 Use original approved lubricants........................................................................ 74
9.5.3 Maintenance instructions ................................................................................... 74
9.6 Cleaning and maintenance.......................................................................... 75
9.6.1 First steps............................................................................................................ 75
9.6.2 Injector cleaning.................................................................................................. 75
9.6.3 Refill controller cleaning .................................................................................... 75
9.6.4 Pilot filter screen cleaning.................................................................................. 77
9.6.5 Controller cover disassembly ............................................................................. 78
9.6.6 Camshaft cover disassembly .............................................................................. 78
9.6.7 Motor replacement.............................................................................................. 79
9.6.8 Camshaft replacement ....................................................................................... 80
9.6.9 Optical sensor and controller replacement ....................................................... 81
9.6.10 Turbine cleaning or replacement ....................................................................... 82
9.6.11 Top plate and disc valve replacement ................................................................ 83
9.6.12 Cartridge replacement........................................................................................ 85
9.6.13 Valve on tank assembly....................................................................................... 87
10 Troubleshooting .............................................................................. 88
10.1 Logix controller ........................................................................................... 88
10.2 Magnum IT and Cv valve.............................................................................. 89

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10.3 Magnum valve cartridge.............................................................................. 91
11 Spare parts...................................................................................... 93
11.1 Magnum Logix valve body ........................................................................... 93
11.2 Magnum connections .................................................................................. 94
11.3 Magnum Logix camshaft and pilot.............................................................. 95
11.4 Magnum refill controller assembly ............................................................ 96
11.5 Magnum injector assembly......................................................................... 97
11.6 Magnum drain line flow controls assembly................................................ 98
11.7 Magnum cartridges..................................................................................... 101
11.8 Magnum Logix controllers.......................................................................... 102
11.9 Magnum IT turbine ...................................................................................... 103
11.10 2" external turbine assembly...................................................................... 104
11.11 1" external turbine assembly...................................................................... 104
11.12 Magnum miscellaneous .............................................................................. 105
11.13 Magnum 298 installation components........................................................ 106
11.14 Magnum 293 installation components........................................................ 107
12 Disposal........................................................................................... 108

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1 Generalities
1.1 Scope of the documentation
The documentation provides the necessary information for appropriate use of the product. It
informs the user to ensure efficient execution of the installation, operation or maintenance
procedures.
The content of this document is based on the information available at the time of publication. The
original version of the document was written in English.
For safety and environmental protection reasons, the safety instructions given in this
documentation must be strictly followed.
This manual is a reference and will not include every system installation situation. The person
installing this equipment should have:
• training in the Autotrol series, Logix 742-762 controllers and water softener installation;
• knowledge of water conditioning and how to determine proper controller settings;
• basic plumbing skills.
This document is available in other languages on https://www.pentairaquaeurope.com/product-
finder/product-type/control-valves.
1.2 Release management
Revision Date Authors Description
A 02.08.2017 STF/ESA First edition.
B 23.05.2018 BRY/FLA Address change, Bleam information and valve on
tank assembly.
C 25.10.2019 STF General corrections.
D 03.02.2022 NLE/ABO New design.
1.3 Manufacturer identifier, product
Manufacturer: Pentair International LLC
Avenue de Sevelin 18
1004 Lausanne
Switzerland
Product: Autotrol Magnum 293 - 298 Logix 742-762

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1.4 Abbreviations used
BLFC Brine Line Flow Controller
DF Down Flow
DLFC Drain Line Flow Controller
Inj Injector
QC Quick Connect
Regen Regeneration
SBV Safety Brine Valve
TC Time Clock
UF Up Flow
1.5 Norms
1.5.1 Applicable norms
Comply with the following guidelines:
• 2006/42/EC: Machinery Directive;
• 2014/35/UE: Low Voltage Directive;
• 2014/30/UE: Electromagnetic compatibility;
• 2011/65/UE: Restriction of use of certain hazardous substances in electrical and electronic
equipment (RoHS);
• UNI EN ISO9001.
Meets the following technical standards:
• IEC/EN 60335-1;
• IEC 61010-1;
• EN 55014-1;
• EN 55014-2;
• EN 61000-3-2: 2006 + A1: 2009 + A2: 2009;
• EN 61000-3-3: 2008;
• EN 61000-6-2: 2005;
• EN 61000-6-3: 2007 + A1: 2011;
• EN 61326-1.
1.5.2 Available certificates
• CE;
• DM174;
• ACS.
Please find beside the certifications for some of our
product families. Please note that this list is not an
exhaustive list of all our certifications. In case of need
for more information please contact us.

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1.6 Procedure for technical support
Procedure to follow for any technical support request:
1. Collect the required information for a technical assistance request.
ðProduct identification (see Serial label location [→Page11] and Recommendations
[→Page74]);
ðDescription of the device problem.
2. Please refer to the Troubleshooting [→Page88]. If the problem persists contact your
supplier.
1.7 Copyright and Trademarks
All indicated Pentair trademarks and logos are property of Pentair. Third party registered and
unregistered trademarks and logos are the property of their respective owners.
© 2022 Pentair. All rights reserved.
1.8 Limitation of liability
Pentair Quality System EMEA products benefit, under specific conditions, from a manufacturer
warranty that may be invoked by Pentair’s direct customers. Users should contact the vendor of
this product for applicable conditions and in case of a potential warranty claim.
Any warranty provided by Pentair regarding the product will become invalid in case of:
• installation done by a non-water-professional;
• improper installation, improper programming, improper use, improper operation and/or
maintenance leading to any kind of product damages;
• improper or unauthorized intervention on the controller or components;
• incorrect, improper or wrong connection/assembly of systems or products with this product
and vice versa;
• use of a non-compatible lubricant, grease or chemicals of any type and not listed by the
manufacturer as compatible for the product;
• failure due to wrong configuration and/or sizing.
Pentair accepts no liability for equipment installed by the user upstream or downstream of Pentair
products, as well as for process/production processes which are installed and connected around
or even related to the installation. Disturbances, failures, direct or indirect damages that are
caused by such equipment or processes are also excluded from the warranty. Pentair shall not
accept any liability for any loss or damage to profits, revenues, use, production, or contracts, or
for any indirect, special or consequential loss or damage whatsoever. Please refer to the Pentair
List Price for more information about terms and conditions applicable to this product.
1.9 Scan & Service application
Scan & Service mobile application is the ideal support for the maintenance person in his daily
business. A simple scan of an identification (ID) label (1) present on the valve with a smartphone
gives an instantaneously access to all updated information related to the product, such as:
• valve’s and tanks detailed configuration;
• manuals;

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• spare parts lists;
• troubleshooting recommendations;
• multi-lingual videos, detailing how to best service a part;
• informations about new products, latest technologies, novelties about the Blue Network
program, etc.
1. Download the application "Scan & Service" from or in a
smartphone(4).
2. Open the application "Scan & Service".
3. Scan the bleam(3) stuck on the valve(2).
4. Navigate to find information.

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2 Safety
2.1 Safety pictograms definition
DANGER
This combination of symbol and keyword indicates an imminently hazardous situation
that will result in serious or fatal injury if not avoided.
WARNING
This combination of symbol and keyword indicates a potentially hazardous situation
that can result in serious or fatal injury if not avoided.
CAUTION
This combination of symbol and keyword indicates a potentially hazardous situation
that can result in minimal or minor injury if not avoided.
Caution - material
This combination of symbol and keyword indicates a potentially hazardous situation
that can result in material damage if not avoided.
Prohibition
Mandatory advice to follow.
Mandatory
Applicable guideline, measure.
Info
Informative comment.

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2.2 Serial label location
Model
Part number
Electrical rating
Serial number
Production date
Production order
Mandatory
Ensure that the serial label and the safety labels on the device are completely legible
and clean!
If necessary, replace them with new labels in the same positions.
2.3 Hazards
All the safety and protection instructions contained in this document must be observed in order to
avoid temporary or permanent injury, damage to property or environmental pollution.
At the same time, any other legal regulations, accident prevention and environmental protection
measures, as well as any recognized technical regulations relating to appropriate and risk-free
methods of working which apply in the country and place of use of the device must be adhered to.
Any non-observation of the safety and protection rules, as well as any existing legal and technical
regulations, will result in a risk of temporary or permanent injury, damage to property or
environmental pollution.
2.3.1 Personnel
CAUTION
Risk of injury due to improper handling!
Only qualified and professional personnel, based on their training, experience and
instruction as well as their knowledge of the regulations, safety rules and operations
performed, are authorized to carry out necessary work.
2.3.2 Material
The following points must be observed to ensure proper operation of the system and the safety of
user:
• be careful of high voltages present on the transformer (230V, 50Hz);
• do not put your fingers in the system (risk of injuries with moving parts and shock due to
electric voltage).

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2.4 Hygiene and sanitization
2.4.1 Sanitary issues
Preliminary checks and storage
• Check the integrity of the packaging. Check that there is no damage and no signs of contact
with liquid to make sure that no external contamination occurred;
• the packaging has a protective function and must be removed just before installation. For
transportation and storage, appropriate measures should be adopted to prevent the
contamination of materials or the objects themselves.
Assembly
• Assemble only with components which are in accordance with drinking water standards;
• after installation and before use, perform one or more manual regenerations in order to
clean the media bed. During such operations, do not use the water for human consumption.
Perform a disinfection of the system in the case of installations for treatment of drinking
water for human use.
Info
This operation must be repeated in the case of ordinary and extraordinary
maintenance.
It should also be repeated whenever the system remains idle for a significant time.
Info
Valid only for Italy
In case of equipment used in accordance with the DM25, apply all the signs and
obligations arising from the DM25.
2.4.2 Hygiene measures
Disinfection
• The materials used for the construction of our products meet the standards for use with
potable water; the manufacturing processes are also geared to preserving these criteria.
However, the process of production, distribution, assembly and installation, may create
conditions of bacterial proliferation, which may lead to odor problems and water
contamination;
• it is therefore strongly recommended to sanitize the products. See Sanitization [→Page65];
• maximum cleanliness is recommended during the assembly and installation;
• for disinfection, use Sodium or Calcium Hypochlorite and perform a manual regeneration.

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3 Description
3.1 Introduction to the Magnum Cv and Magnum IT valves series
The Magnum valve is available in several configurations:
Magnum Cv Magnum IT
Turbine External turbine Internal turbine
Inlet diameter 3.91cm (1½") 5.08cm (2")
Outlet diameter 3.91cm (1½") 5.08cm (2")
Drain diameter 3.91cm (1½") 3.91cm (1½")
Logix Magnum Time Clock 742/298
Logix Magnum Demand 762/298
Logix Magnum Time Clock 742F/293
Logix Magnum Demand 762F/293
5 - Cycle softener 3 - Cycle filter
C0: Service
C1: Backwash
C2: Brine draw
C3: Slow rinse
C5: Fast rinse
C8: Refill
C0: Service
C1: Backwash
C5: Fast rinse
Info
Both valves configuration (293 & 298) are available with Magnum Cv and Magnum IT
series.
Magnum Cv Magnum IT

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3.2 Technical specifications
Design specifications/ratings
Valve body PPO Glass fiber reinforced
O-rings EPDM
Weight (valve with controller) 10.6kg
Recommended operating pressure 1.72 - 6.9bar
Water temperature 1- 38°C
Ambient temperature* 2- 50°C
Flow rates Magnum Cv (valve only)
Service at 1.03bar drop 17.3m3/h
Backwash at 1.72bar drop 20.2m3/h
Service Kv= 17m3/h (Cv= 19.5gpm)
Backwash Kv= 15.4m3/h (Cv= 17.8gpm)
Flow rates Magnum IT (valve only)
Service at 1.03bar drop 18.2m3/h
Backwash at 1.72bar drop 20.2m3/h
Service Kv= 17.94m3/h (Cv= 20.74gpm)
Backwash Kv= 15.4m3/h (Cv= 17.8gpm)
Valve connections
Tank Adapter Thread 4" – 8 UN
Inlet/Outlet Threads 1.5" Connections NPT or BSPT, Female,
CPVC
Drain line* 1 ½" Connections for NPT or BSPT, Female,
CPVC
Brine line ¾" NPT
Riser tube[Ø] 1 ½" O.D.
Riser installation Above top of tank 16mm ±3mm (⅝ ±⅛")
Pilot drain and auxiliary hydraulic
output
6.4mm (¼") tube fitting
* Valve installed drain flow controls available (1.14 - 9.08m3/h). If higher backwash flow is needed,
an external flow control will be required.
Electrical
Controller Operating Voltage 12VAC (requires use of Pentair Water supplied
transformer)
Input Supply Frequency 50 or60Hz (controller configuration dependent)

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Motor Input Voltage 12VAC
Controller Power Consumption 3W average
Protection rating IP23
3.3 Performance flow rate characteristics
The graph shows the pressure drop created by the valve itself at different flow rates. It allows
predetermining the maximum flow rate going through the valve depending on the system settings
(inlet pressure etc). It also allows to determine the valve pressure drop at a given flow rate, and
therefore to evaluate the system pressure drop vs flow rate.
FLOW RATE VS PRESSURE DROP
Service Magnum Cv
Service Magnum IT
Flow rate [m³/h]
Pressure drop [bar]
Backwash Magnum Cv & IT

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3.4 Outline drawing
Magnum Cv Magnum IT

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3.5 Components description and location
No hard water bypass
valve cartidge
Camshaft
Drain
Inlet valve cartridge
Inlet
Outlet
LCD display
Manual REGEN button
UP button
SET button
DOWN button
Optical sensor
Motor
Pilot filter sreen
Injector assembly
Refill control assembly
Valve disc spring
Drain valve cartridge
Control module mount
Internal turbine assembly
Valve discs
Brine
Rinse valve cartidge

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3.6 Options available on the valve
3.6.1 6" flange plastic tank adapter
This adapter allows a direct connection from the 6" flanged tank to the Magnum valve. It is
manufactured from the same glass-filled thermoplastic as the Magnum valve body.
When incorporating this adapter into your system, no metal components are in contact with the
water flowing through which enables the Magnum Control Valve’s use in corrosive applications.
Like the stainless-steel threaded tank adapter, the 6" flange adapter allows the valve to rotate
360-degrees in relation to the tank. This adapter eliminates the need for an additional flange-to-
thread adapter component in a large tank system.
This adapter is still to be fitted with the stainless steel quick-connect clamp that will simplify
installation and maintenance.
Quick-connect clampStainless steel tank adapter
Top view Bottom view
Plastic tank adapter

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3.6.2 Refill first
The Logix 742-762 controllers allow you to refill the brine tank first when used in softener mode.
This feature allows the brine tank to be dry during the complete service cycle, reducing the caking
phenomena.
When a regeneration is initiated, the timer places the valve in refill position. Once the refill cycle is
done, the timer puts the valve back into service for 2hours giving a sufficient time to make the
brine in the brine tank. After 2hours the softener will operate a regeneration as usual, just
skipping the refill cycle that will be done just before the next regeneration cycle.
3.6.3 External pilot feed adapter
A small check valve is incorporated inside the Magnum pilot system. This removable and
replaceable check valve maintains the valve cartridge position in the event of pressure loss.
This check valve is compatible with an external pilot feed adapter and can be used with separate
source pilot pressure if desired.
1. Remove the pilot filter screen assembly (1).
2. Install the external pilot feed adapter (2) or the pilot system check valve (3).

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3.6.4 Magnum switch kit
Optional switch kits can be used on the Magnum Cv valve to provide electrical signalling
capabilities. Used in conjunction with breakaway cams, the switches will provide a signal to
external devices during the various cycles of the valve operations.
3.6.4.1 Switch mounting instructions
1. Fasten the switch-mounting bracket (4) to the Magnum Cv valve (1) using the threadforming
mounting screw (3) (see picture 1). The shorter, clipped edge of the bracket should be
positioned over the guide pin (5) and screw hole located behind the B1/B2 cam (2/6).
2. Attach the switches to the bracket using the screws, nuts and washers provided. The screws
should be inserted so that the washer and nuts are on the backside of the switch SW1.
When mounting a single switch, the switch is mounted to the back of the bracket directly in
front of the number one cam (see picture 1).
When a triple switch is mounted, one switch is located on the back of the bracket and two are
located on the front (see picture 2). For multiple switches it is easiest to slide two switches
onto the screws and then insert the screws through the bracket. The final switch is then
added to the screws and fastened with the washers and nuts (see picture 2). Switches are
mounted with the switch arm adjacent to the breakaway cams and the electrical contacts
directed away from the camshaft (see picture 3).
3. Each switch has three terminals (see picture 4), the common terminal is on the side (labelled
COM1), and two terminals are on the bottom.
The lower terminal which is closest to the camshaft is the closed contact (labelled NC2), the
remaining terminal is the open contact (labelled NO3).
Connect the cable lead wires to the appropriate terminal using the crimp-on terminal
connectors provided. Auxiliary switch cables are available in 3m (P/N1041065) and 6m (P/
N1041066) lengths. The connections for these cables are: black to common terminal, red to
normally open terminal and green to normally closed terminal.