Toro TMC-424E User Manual
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Toro Modular Controller - 4 to 24 Stations
Toro Modular Controller - 4 to 24 Stations
User's Guide
User's Guide
Installation
Installation
Programming
Programming
Operation
Operation
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Summary of Contents for Toro TMC-424E

  • Page 1 Toro Modular Controller - 4 to 24 Stations Toro Modular Controller - 4 to 24 Stations PREV NEXT User’s Guide User’s Guide Installation Installation ♦ ♦ Programming Programming ♦ ♦ Operation Operation ♦ ♦...
  • Page 2: Introduction

    4 – 24 stations, using four-or eight-station modules. Real-time flow sensing monitors up to three independent sensors and is compatible with the Toro TFS Series flow sensors. Versatile run times allows for additional watering flexibility. Add this together with features like two levels of surge protection, compatibility with the TMR-1 Maintenance Remote, the rugged dual-use cabinet, and convenient program review feature, and you really do have the ultimate in controller Flexibility.
  • Page 3 High The Expansion Modules can be installed and removed at any time without powering down the controller. The TMC-424E will gain instant access to the module and will logically number the stations based on module position. For example, if three 4-station modules are installed, the stations will be numbered 1–12: module I (stations 1–4) module II (stations 5–8) and module III (stations 9–12).
  • Page 4: Table Of Contents

    Table of Contents Introduction..............ii Control Module Overview .
  • Page 5 Specifications ............. . .32 The Toro Promise - Limited Warranty Information....... . .33 FCC Compliance Information .
  • Page 6: Control Module Overview

    Control Module Overview The following brief descriptions of the controller components and display elements are provided for general overview. Each of these items are explained in detail within the appropriate section of this guide. 1 - Program Switch l - 2-digit display identifies the station number or start time number Four-position slide switch used to select currently selected.
  • Page 7 PREV NEXT 5 - 9V Battery Compartment & Clip – To operate manual program watering programs manually. A standard 9V battery is required for – To operate individual Armchair Programming and to maintain manual station stations manually. clock time during an extended power loss. –...
  • Page 8: Internal Component Overview

    Internal Component Overview 6 - Power supply compartment cover. 16 - Expansion module (model TSM-4 shown). 7 - Control module ribbon cable recep- tacle. 17 - Wiring connection terminals: S - Rain Sensor (2). 8 - Transformer 24 VAC output connec- Hot Post (24 VAC source) tion terminals P - Pump Start/Master Valve...
  • Page 9: Programming Overview

    The TMC-424E provides up to 16 watering cycle start time slots that can be assigned to the four programs in any combination. For example, program A could have 10 start times, program B two start times, program C four start times and program D no start times.
  • Page 10: Controller Programming

    Controller Programming NOTE: English display prompts and 12-hour (a.m./p.m.) time format are factory-default settings. To select an optional display language, including Spanish, French, Italian, German and Portuguese, and/or a 24-hour time format, refer to the Special Function setup procedures on page 13. Set Current Time and Date 1.
  • Page 11: Set Program Start Times

    Set Program Start Times NOTE: The TMC-424E enables a total of 16 unique start times to assigned to four programs in any combination totaling 16. For example, program A could have 12 start time assignments, which would leave four start time assignments available for programs B, C and D.
  • Page 12: To Set Calendar Days

    To Set Calendar Days: 1. Turn the Function Dial to Calendar Days 2. Sunday will be displayed and selected to water indicated by the water icon. To exclude the day from the schedule, press the button to display the No Water icon.
  • Page 13: Season Adjust Feature

    Season Adjust Feature The Season Adjust feature enables the cumulative program run time to be easily increased or decreased by a percentage factor from 0% (Off) – 200%, in 10% increments. Season Adjust can be applied to individual programs and globally to all programs by selected months of the year. When a Season Adjust factor is applied by program and by month, the adjusted program duration is the result of the combined percentage factors.
  • Page 14: Special Functions

    Minutes value is displayed as 1M – 60M. Setting Master Valve/Pump Start Options The TMC-424E allows you to set Master Valve/Pump Start (MV/PS) operation by individual program and by individual station as preferred. By default, operation of all programs and all stations will activate the MV/PS circuit.
  • Page 15: To Select Mv/Ps Operation By Program And Station

    NOTE: A program must have the MV/PS control option enabled to permit individual stations assigned to the program to be excluded from MV/PS operation. In other words, assigning MV/PS operation by station is not applicable unless MV/PS operation for its assigned program is enabled. •...
  • Page 16: Setting Watering Cycle Repeat Option

    (including master valve/pump start circuits) operate concurrently. Refer to “Appendix B – TMC-424E Current Load Data” on page 29 for additional information. 1. Turn the Function Dial to Special Functions button as needed to display 1PROG (stack).
  • Page 17: Erase Program Memory

    HH – N (Hand Held – No). 3. Press the Selecting Display Language Option The TMC-424E displays word prompts in English (ENG) by default and offers five additional languages preferences as follows: Spanish (ESP), French (FRA), Italian (ITA), German (DEU) and Portuguese (POR).
  • Page 18: Manual Operations

    Manual Station Operations The TMC-424E offers two ways to manually activate individual stations: True manual, to operate a selected station without a specified run time, and Timed manual to operate selected stations with an assigned temporary run time.
  • Page 19: Manual Program Operations

    Manual Program Operations This type of manual watering is also known as “Semi-automatic” operation. When a program is started manually, it runs through the watering cycle as if started automatically. A single program can be operated, or multiple programs can be run in sequence or simultaneously. NOTE: All automatic program control options selected within Special Functions will also apply to all manual operations.
  • Page 20: Flow Sensor Operations

    Learned flow rate. Flow Module Setup Procedure NOTE: The TMC-424E is designed for use with Toro TFS series flow sensors only. Consult with an authorized Toro distributor prior to connecting other flow sensor makes. For complete TFS flow sensor installation and setup information, refer to the user’s guide provided with the unit.
  • Page 21: Select Flow Sensor Module Master Valve Type

    • Select Flow Sensor Module Master Valve Type button to display MV:NC (Master Valve: Normally Closed). If the flow module 1. Press the does not control a master valve, press the button twice to skip this setting. NOTE: When multiple flow sensor modules are installed, the first module in sequence will be selected (designated by the flow sensor icon ).
  • Page 22: Rain Sensor Control Features

    button to select UF -- -- (Under Flow – Off). This setting establishes the alert 7. Press the threshold for a flow rate below the Learned Flow. 8. Press the button to select a value from 10–100%, (in 10% increments). Select -- -- to disable this threshold.
  • Page 23: Rain Sensor Control By Program

    Rain Sensor Control by Program This unique TMC-424E feature enables rain sensor control input to be enabled/disabled for specific programs. By default rain sensor input is active for all programs. 1. Turn the Function Dial to Sensors 2. Set the Program Switch to select program A, B, C, or D.
  • Page 24: Rain Delay Feature

    Rain Delay Feature The Rain Delay and Season Adjust control features enable quick, temporary changes in operation to help compensate for changes in weather and season. Rain Delay enables all automatic watering operations to be delayed from 1 to 14 days. For example, rain is forecast in your area for the next two days.
  • Page 25: Installation Instructions

    (Wire, electrical conduit and conduit fittings are not provided.) Selecting an Appropriate Installation Site Select an installation site for the TMC-424E controller that will provided the following conditions: • Protection from direct exposure to irrigation spray, midday sun, wind and snow.
  • Page 26: Cabinet Installation

    Cabinet Installation 1. Drive a wood screw into the wall within eye level until only 1/4" (10mm) of the screw is exposed. NOTE: If installing the controller on drywall or 7" masonry, install the appropriate type screw (17,78mm) anchors. 2. Hang the cabinet on the screw using the keyhole slot.
  • Page 27: Flow Sensor Connection

    Pump Start/ Master Valve Valve Common Valve Common Wire Pump Start Relay Master Valve CAUTION: To avoid possible equipment damage, do not connect pump starter directly to the controller. A 24V, 0.5A (maximum) relay must be used for this connection. Flow Sensor Connection 1.
  • Page 28: Power Connection - Indoor Models

    Input Power Connection - Indoor Models NOTE: Unlike most indoor-type controller models, the TMC-424E-ID model incorporates an internal transformer. A Class C power cord and strain relief are supplied for connection of the transformer terminal block to a grounded wall outlet.
  • Page 29: Power Connection - Outdoor Models

    Connection (optional) NOTE: In lightning-prone areas, an earth-ground connection may be necessary to provide adequate surge protection. An (optional) ground lug can be easily installed to facilitate a ground wire connection. Contact your local Toro irrigation distributor for specific grounding recommendations.
  • Page 30: Rain Sensor Installation (Optional)

    Rain Sensor Installation (Optional) All Toro rain sensors, including wireless models TWRS and TWFRS (rain/freeze), and wired version TRS, can be connected directly to the TMC-424E to automatically interrupt irrigation when the preset rain or (freeze) threshold is met. A sensor bypass switch is provided to override sensor operation as needed. Refer to page 18 for additional Rain Sensor operating information.
  • Page 31: Toro Tmr-1 Handheld Remote Installation (Optional)

    Toro TMR-1 Handheld Remote Installation (Optional) The TMC-424E is equipped for operation with the Toro TMR-1 handheld remote control. A handheld control option is provided in Special Functions that enables/disables handheld opera- tion. By default operation is enabled. Refer to page 13 to disable handheld remote operation.
  • Page 32: Appendix A - Tfs Flow Sensor Performance Data

    = Do not operate in this region • • TMC-424E maximum PPS = 125 • To convert GPM to LPM, multiply x 3.79 • If installed flow sensor measures in units other than PPS, contact your Toro distributor for assistance.
  • Page 33: Appendix B - Tmc-424E Current Load Data

    Appendix B – TMC-424E Current Load Data Determining Maximum Current Load The reference table below provides various current load combinations that may be encountered when using multiple programs running simultaneously with Master Valve/Pump Start control options. The number of 24 VAC loads based on one station/valve operating per program are listed in the Station Valves row.
  • Page 34: Appendix C: Display Alerts

    Appendix C: Display Alerts FUSE – Station and MV/PS output alert The TMC-424E features built-in circuit protection to help prevent damage to the controller caused by an over-current condition on any output terminal. If the controller detects an overload condition, it will bypass the affected output and display the word FUSE with the affected station number identifier(s).
  • Page 35: Appendix D: Default Settings - Abbreviations

    Appendix D: Default Settings - Abbreviations When the TMC-424E is shipped from the factory, or the control module has been restored to factory default settings, the following control parameters are selected: NOTE: The program default settings, indicated by an asterisk (*), are restored by the Erase feature provided within Special Functions.
  • Page 36: Specifications

    Specifications Cabinet Dimensions: • 10.5” W x 9.5” H x 5” D Temperature Limits: • Operating: +14°F to +140°F (-10°C to +60°C) • Storage: -22°F to +149°F (-30°C to +65°C) Power Specifications: • North America Internal Transformer, Class 2, UL Listed, CSA Certified (or equivalent) Input: 120 VAC ±...
  • Page 37: The Toro Promise - Limited Warranty Information

    This warranty gives you specific legal rights and you may have other rights which vary from state to state. The Toro TMC-424E series controllers are covered by this warranty for a period of five years from the date of installation.
  • Page 38 Notes:...
  • Page 39 Notes:...
  • Page 40: Fcc Compliance Information

    U.S. Government Printing Office, Washington, DC 20402. Stock No. 004-000-00345-4. Customer Care You Can Count On At Toro, not only do we provide the most efficient water management products, we deliver a superior customer support experience as well. Like our products, Toro’s customer support teams have more than exceptional technical skills –...

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