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OWNER'S MANUAL
How to operate your Demand Controlled
Model VS 34
Model VS 74
Model VS 87
Model VS 124
English Owner's Manual
Viessmann
Water Softener
Guide d'utilisation
Français
Adoucisseur d'eau
Viessmann . . . . . . . . . . . . 33
Nederlands Gebruikersh
Viessmann
Waterontharder . . . . . . . . 65
Manuale dell'utente
Italiano
Addolcitore d'acqua
Viessmann . . . . . . . . . . . . 97
Water Softener
Page
. . . . . . . . . . . 1
andleiding
7388734 (Rev. B 10/20/21)
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Table of Contents
Troubleshooting
Related Manuals for Viessmann VS 34
Summary of Contents for Viessmann VS 34
- Page 1 ... 1 Water Softener Guide d’utilisation Français Adoucisseur d’eau Viessmann ... . 33 andleiding Nederlands Gebruikersh Viessmann Waterontharder ..65...
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Page 2: Specifications And Dimensions
Specifications & Dimensions Model VS 34 VS 74 VS 87 VS 124 Model Code VS34 VS74 VS87 VS124 0.65 0.84 6.82 1.09 Rated Softening Capacity (mol @ kg Salt Dose) 12.4 10.3 11.7 18.0 Rated Efficiency (mol per kg @ Min. Salt Dose) 6.00... -
Page 3: Installation Requirements
Installation Requirements LOCATION REQUIREMENTS PLUMBING CODES Consider all of the following when selecting an installa- All plumbing must be completed in accordance with tion location for the water softener. national, state and local plumbing codes. = Do not locate the water softener where freezing temperatures occur. -
Page 4: Valve Drain Requirements
Installation Requirements VALVE DRAIN REQUIREMENTS 1/4” NPT Thread Barbs for 9.5 mm Using the flexible drain hose (included), measure and I.D. Tubing cut to the length needed. Flexible drain hose is not Hose Clamp allowed in all localities (check your plumbing codes). If local codes do not allow use of a flexible drain hose, a Drain Hose rigid valve drain run must be used. -
Page 5: Installation Instructions
ASSEMBLY Set it on a solid, level surface. IMPORTANT: Do not place shims directly under the 1. Viessmann softeners are factory assembled. During salt storage tank to level the softener. installation, remove the salt lid and set it aside to The weight of the tank, when full of prevent damage. - Page 6 Installation Instructions continued from previous page Nozzle Faceplate Cover Venturi 2. Visually check and remove any debris from the Brine Tank Assembly water softener valve inlet and outlet ports. Overflow Brinewell Elbow 3. Make sure the turbine assembly spins freely in the Cover "out"...
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Page 7: Cold Water Pipe Grounding
Installation Instructions COLD WATER PIPE GROUNDING INSTALL SALT STORAGE TANK OVERFLOW HOSE CAUTION: The house cold water pipe (metal only) is often used as a ground for the house 1. Measure, cut to needed length and connect the 9.5 electrical system, The 3-valve bypass mm drain line (provided) to the salt storage tank type of installation, shown in Figure 7, overflow elbow and secure in place with a hose... -
Page 8: Sanitize The Water Softener / Sanitize After Service
Installation Instructions SANITIZE THE WATER SOFTENER / SANITIZE AFTER SERVICE If removing Care is taken at the factory to keep your unit clean and clips... sanitary. Materials used to make the unit will not infect or contaminate your water supply, and will not cause bacteria to form or grow. -
Page 9: Bypass Blending Valve
Bypass Blending Valve SERVICE POSITION The bypass blending valve works as a typical push- (Normal Softener Operation) pull bypass valve, but has the added ability to finely adjust hardness of the treated water leaving the water softener. If slightly harder water is desired than is Soft Water normally output by the water softener, this bypass Hard... -
Page 10: Programming The Water Softener
Programming the Water Softener LEFT RIGHT Display Button Button Button OK / MENU DOWN FIG. 18 Button Button SETUP PROCEDURE When the water softener is plugged in for the first time, 6. Press the OK / MENU button. a beep sounds and the display briefly shows model information. - Page 11 Programming the Water Softener SOFTENER STATUS SCREENS OTHER MESSAGES, ALERTS & REMINDERS During normal operation, the water softener’s display shows up to four status screens (Page 16 explains how The softener status screens described above will not be individual screens can be turned on or off). Each is displayed in a rolling sequence when one of the follow- shown for six seconds, in a rolling sequence (See ing items is displayed:...
- Page 12 Programming the Water Softener MAIN MENU LONG DISPLAY SCREEN MESSAGES Most messages in the softener’s display screens are short enough to be shown as a single line. Longer Main menu messages will be truncated (See Figure 27 for an Recharge example) until you highlight them. Salt settings FIG.
- Page 13 Programming the Water Softener SETTING SALT LEVEL LOW SALT ALARM Use this feature when adding salt to the softener. Use this feature to program when the electronic control will display a low salt alarm. The number of days can 1. From any of the rolling status screens, press the OK / be customized, or the feature can be turned off.
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Page 14: Setting The Current Time
Programming the Water Softener RECHARGING THE SOFTENER SETTING THE CURRENT TIME This feature may be used to assure an adequate supply When the softener’s electronic control is first powered of softened water at times of unusually high water use. up, a “wizard” screen prompts you to set the current For example, if you have guests and the “Water avail- time (See Page 10). - Page 15 Programming the Water Softener SETTING RECHARGE TIME SETTING HARDNESS When the softener’s electronic control is first powered When the softener’s electronic control is first powered up, the default time for starting an automatic recharge is up, a “wizard” screen prompts you to enter your water’s 02:00.
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Page 16: Setting The Language
Programming the Water Softener MODIFYING ROLLING SCREENS SETTING THE LANGUAGE During normal softener operation, four status screens When the softener’s electronic control is first powered are shown in sequence (See “Softener Status Screens” up, a “wizard” screen prompts you to set the language on Page 11). - Page 17 Programming the Water Softener SETTING HARDNESS UNITS Use this feature to select grains or parts per million (ppm) as hardness units. 1. From any of the rolling status screens, press the OK / MENU button to display the Main menu. 2.
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Page 18: System Information
Programming the Water Softener SYSTEM INFORMATION Use these features to look up the following information Model information about the softener and its operations: Model information (model number and software Model: VS34 FIG. 55 version) Version: R4.0 Water available (softened water ready for use) Daily average water used Water used today Water available... -
Page 19: Cycle Times
Programming the Water Softener CYCLE TIMES 8a. Backwash time: Press the UP or DOWN q Use these features to change the following softener buttons to change the backwash time. Hold the operations: button down to rapidly advance. The backwash Backwash time time can be set as high as 30 minutes* (See Second backwash (On/Off) Figure 67). -
Page 20: Special Features
Programming the Water Softener SPECIAL FEATURES Use these features to change the following operations: 8a. Efficiency mode: If the desired efficiency mode already has a black dot next to it (See Efficiency mode Figure 74), go to Step 9. Otherwise, press the Maximum days between recharges DOWN q or UP buttons to scroll to the... - Page 21 Programming the Water Softener DIAGNOSTICS 9. Press the DOWN q or UP This feature allows a service technician to check the buttons to scroll through the list. The following items are displayed: operating state of individual components in the softener (e.g.
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Page 22: Wiring Schematic
Programming the Water Softener SETUP CHANGES Setup changes This feature allows a service technician to repeat the Redo setup setup procedure (See Page 10) or restore the soften- er’s default operating values. Restore defaults FIG. 81 1. From any of the rolling status screens, press the OK / Cancel MENU button to display the Main menu. -
Page 23: Routine Maintenance
Routine Maintenance REFILLING WITH SALT BREAKING A SALT BRIDGE If the softener uses all the salt before more is added, Sometimes a hard crust or salt “bridge” forms in the hard water will result. Lift the brine tank lid and check brine tank. - Page 24 Routine Maintenance CLEANING THE NOZZLE & VENTURI RESIN BED CLEANING A clean nozzle & venturi (See Figure 84) is necessary If the water supply contains clear water iron, regular for the water softener to work properly. This small unit resin bed cleaning is needed to keep the bed from coat- creates the suction to move brine from the brine tank ing with iron.
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Page 25: Troubleshooting Guide
Troubleshooting Guide PROBLEM CAUSE CORRECTION No soft water No salt in the storage tank. Add salt (See Page 23) and then initiate a “Recharge now,” as shown on Page 14. Salt is “bridged.” Break salt bridge (See Page 23) and then initiate a “Recharge now,”... -
Page 26: Troubleshooting
Troubleshooting AUTOMATIC ELECTRONIC DIAGNOSTICS CHECKING THE TURBINE 1. Display the Diagnostics screen, following the proce- This softener has a self-diagnostic function for the elec- dure on Page 21. trical system (except for input power and/or water 2. Press the DOWN q button to scroll through the list meter). -
Page 27: Other Service
Troubleshooting TROUBLESHOOTING - 12. If the unit does not draw brine, check for: MANUAL ADVANCE RECHARGE CHECK Dirty or defective nozzle / venturi (See Page 24) Nozzle / venturi not seated on the gasket or gas- This check verifies proper operation of the position ket not sealing properly switch, gear motor, brine tank fill, brine draw, recharge Restriction in valve drain, causing back pressure... - Page 28 Softener Exploded View Valve Assembly See Pages 30 & 31 for parts...
- Page 29 Softener Parts List Part No. Description Part No. Description Power Supply, 24V DC, 7268918 Repl. Brine Tank (Model VS 34) 7366130 with Snap-in Plugs for Europe & UK 7268934 Repl. Brine Tank (Model VS 74) 7250826 Power Cable 7337424 Repl. Brine Tank (Model VS 87) 7388491 Repl.
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Page 30: Valve Exploded View
Valve Exploded View Wear Strip Seal Cross-section View... -
Page 31: Valve Parts List
Clip, Drain 7081104 Housing, Nozzle & Venturi Drain Hose Adaptor 7084607 Fill Flow Plug, .57 lpm, (Model VS 34) Hose Clamp Fill Flow Plug, 1.1 lpm, 1148800 O-Ring, 15.9 x 20.6 mm (Models VS 74, VS 87 & VS 124) Flow Plug, 6.8 lpm...