The Chandler Systems D15 Control Valve is a sophisticated water treatment device designed for various applications, including water softeners, iron filters, sediment filters, carbon filters, and neutralizing filters. It is equipped with Bluetooth connectivity, allowing for remote monitoring and control via the Legacy View app on both Android and iOS devices.
Function Description:
The D15 Control Valve manages the regeneration cycles of water treatment systems. For metered versions, it tracks the amount of treated water remaining and initiates regeneration when the capacity is depleted. For filter/aeration versions, it tracks days until regeneration based on a set override value. The valve's operation is controlled by a powerhead assembly that includes a motor, gears, and an encoder wheel to precisely manage the piston's movement through different cycles.
The Legacy View app provides a comprehensive dashboard for monitoring and controlling the valve. Users can view the time of day on the unit, battery life, current water flow, soft water remaining (for softeners) or days until backwash (for filters), regeneration time, treated water usage, peak flow, water hardness (for softeners), filter backwash frequency (for filters), brine tank level (for softeners), and average water usage per day. The app also offers advanced settings for adjusting cycle times and other parameters, though these should only be modified under the guidance of Chandler Systems or a registered plumber.
A key feature is the Salt Monitoring Update, introduced in Legacy View version 3.1.18, for metered softeners running C4.22 firmware. This allows users to monitor their brine tank salt levels. After initial setup, which involves configuring brine tank width and max fill height, users can update the current salt level by tapping the brine tank or sliding to the desired position. The app can also provide notifications if salt levels are low, prompting users to add more salt. iOS users can add a Salt Monitor widget to their home screen for quick status checks.
The valve's main menu, accessible via physical buttons on the unit, allows for setting the time of day, hardness (for metered versions), regeneration frequency (for filter versions), and air recharge frequency (for aeration versions).
Important Technical Specifications:
- Valve Material: Noryl®* (a registered trademark of General Electric Company)
- Inlet / Outlet: 3/4" - 1"
- Cycles: 5
- Flow Rates (50 psi inlet) - Valve Alone:
- Continuous (15 psi drop): 21 gpm
- Peak (25 psi drop): 27 gpm
- CV (flow at 1 psi drop): 5.4
- Max. backwash (25 psi drop): 17 GPM
- Regeneration - Downflow:
- Adjustable Cycles: Yes
- Time Available: 99 minutes per cycle
- Meter Information:
- Meter Accuracy Range: .25 - 15 gpm +/- 5%
- Meter Capacity Range (gal.): 1 - 9,999
- Dimensions:
- Distributor Pilot: 1.050" O.D.
- Drain Line: 1/2" NPT Q.C.
- Brine Line: 3/8"
- Mounting Base: 2-1/2" - 8 NPSM
- Height From Top of Tank: 7.7"
- Electrical Rating: 12 VDC
- Pressure:
- Hydrostatic: 300 psi
- Working: 20 - 125 psi
- Temperature: 34° - 110°F
- Bluetooth Capability: On/Off setting (bE 1)
- Bluetooth Password: Default "1234" (btPP)
- Battery Back-Up: Standard 9-volt alkaline battery (maintains time of day and counts down gallons remaining during power failures; display turns off to conserve power but can be activated for five seconds by pressing any button).
Usage Features:
- Legacy View App: Provides a user-friendly interface for remote monitoring and control.
- Dashboard: Offers a quick overview of system status and performance.
- Advanced Settings: Allows for customization of cycle times and other parameters (recommended for authorized personnel only).
- Salt Monitoring (for softeners): Tracks salt levels in the brine tank and provides low salt notifications.
- Regeneration Control: Initiates delayed or immediate extra regeneration cycles.
- Fast Cycling: Allows for quick advancement through regeneration steps.
- Display Off Feature: Turns off the unit's display when not in use to save power.
- Pulse Chlorine Setting (for Side Mount Aeration Valve Only): Adjusts the amount and frequency of chlorine injection during the Air Replenish / Oxyclean NP Injection cycle.
Maintenance Features:
- Troubleshooting Guide: Provides a comprehensive list of symptoms, probable causes, and corrections for common issues such as failure to regenerate, regeneration at the wrong time, loss of capacity, poor water quality, and high salt usage.
- Error Codes: The valve displays error codes (Error 2-7) to indicate potential problems, such as homing slot issues, encoder signal loss, motor overload, or microswitch detection failures.
- Service Instructions: Detailed procedures are provided for:
- Replacing Powerhead: Steps to remove and install the powerhead assembly.
- Replacing Piston Assembly: Instructions for removing, inspecting, lubricating, and reinstalling the piston assembly, seals, and spacers.
- Servicing Injector and Screen: Guidance on cleaning or replacing the injector and screen.
- Replacing Meter: Steps for removing, cleaning, or replacing the meter assembly.
- Replacing Brine Valve: Instructions for removing and reinstalling the brine valve.
- Lubricants: Emphasizes the use of Dow Corning® silicone grease for control valves and warns against petroleum-based lubricants.
- Sealants: Recommends only Teflon® tape for plastic Noryl® threaded fittings to prevent material attack.
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