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Specifications:
• Controls up to 200 stations for the
Stand-Alone model
• Input power supply:
100 VAC, 50/60 Hz
120 VAC, 50/60 Hz
240 VAC, 50/60 Hz
• GDC output voltage: 40 VDC max.
• GDC output power: 75 VA max.
• Storage temperature: -22ºF–140ºF (-30ºC–60ºC)
• Operating temperature: 32ºF–140ºF (0ºC–60ºC)
• Cabinet Type: Non-corrosive, lockable wall mount,
indoor/outdoor installation
• Six 1" (25.4mm) conduit openings and one 1 1/2" (38mm) conduit
opening
Cabinet Installation
Selecting the proper installation site for the GDC is essential to safe and reliable operation. The GDC features a weather
resistant cabinet designed for indoor or outdoor installation.
The GDC should be installed on a vertical wall or other sturdy structure near
a grounded power source. Select a location that shades the controller during the
hottest hours of the day and provides as much protection from direct sunlight, rain,
wind and snow as possible. DO NOT mount the controller where it is exposed to
direct spray from the irrigation system.
For easy operation and better view of the display, install the GDC so that the
display is at or slightly below eye level.
Step 1 – Drill two pilot holes 6" (15.25cm) apart for the top keyholes of the
controller cabinet.
Step 2 – Install the top screws leaving approximately 1/4" (5–6mm) of exposed
screw to accommodate the cabinet.
If mounting the cabinet on dry wall or
masonry, install the appropriate type of screw
anchors or fasteners to ensure secure installation.
Step 3 – Hang the cabinet using the top keyhole slots.
See Figure 1.
Step 4 – Open the cabinet door and install the bottom two
screws to
secure the cabinet.
GDC 200 Installation Instructions
Stand-Alone Model
9 1/8" (23.175cm)
Figure 1
6" (15.25cm)
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Summary of Contents for Toro GDC 200
- Page 1 GDC 200 Installation Instructions Stand-Alone Model Specifications: • Controls up to 200 stations for the Stand-Alone model • Input power supply: 100 VAC, 50/60 Hz 120 VAC, 50/60 Hz 240 VAC, 50/60 Hz • GDC output voltage: 40 VDC max. • GDC output power: 75 VA max. • Storage temperature: -22ºF–140ºF (-30ºC–60ºC) • Operating temperature: 32ºF–140ºF (0ºC–60ºC) • Cabinet Type: Non-corrosive, lockable wall mount, indoor/outdoor installation • Six 1" (25.4mm) conduit openings and one 1 1/2" (38mm) conduit opening Cabinet Installation Selecting the proper installation site for the GDC is essential to safe and reliable operation. The GDC features a weather resistant cabinet designed for indoor or outdoor installation. The GDC should be installed on a vertical wall or other sturdy structure near Figure 1 a grounded power source. Select a location that shades the controller during the hottest hours of the day and provides as much protection from direct sunlight, rain, wind and snow as possible. DO NOT mount the controller where it is exposed to direct spray from the irrigation system.
- Page 2 Earth Ground Installation IMPORTANT! The GDC surge protection components cannot properly function unless an efficient pathway to earth ground is provided. The ground path must be as direct as possible, without sharp bends and must not exceed 30 Ohm resistance (when measured with an earth ground resistance device). All electrical components throughout the irrigation system should be grounded similarly to provide the same ground potential. The following instructions depict one of several acceptable earth grounding methods. Due to variables in soil composition and terrain, the method shown may not be suitable for your installation site. Contact your local Toro distributor for assistance and availability of the required earth ground resistance test instrument. Step 1 – Drive a 5/8" x 8' (17mm x 2.5m) copper-clad steel rod into well moistened soil not less than 8' (2.5m) or not more than 12' (3.7m) from the controller cabinet. The top of the ground rod should be flush with or below ground level, should be protected from damage using a valve box. See Figure 2. Step 2 – Using a 5/8" (17mm) clamp or “Cad weld” fastener, attach an 8 AWG (8mm ) solid copper wire near the top of the ground rod. Avoiding wire bends of less than 8" (20.3cm) radius and more than 90º, route the wire through conduit and into the cabinet. Secure the wire to the copper ground lug. Make sure the soil surrounding the ground rod(s) remains well moistened at all times. The addition of some form of irrigation may be required if the cabinet is installed in a non-irrigated location. Step 3 – Measure the ground resistance per the instructions provided with the ground test instrument. A reading of 0.0 Ohm is optimum, up to 10 Ohm is good and 11–30 Ohm is acceptable in most cases. If the resistance exceeds the acceptable limit, additional ground rod(s) can be installed at a distance equal to twice the buried depth of the first rod; i.e., 16' (4.9m) . Interconnect the ground rods using 8 AWG (8mm ) solid copper wire and test again. If the measured ground resistance continues to read above the acceptable limit, contact your local Toro distributor for further assistance and recommendations.
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Page 3: Power Source Installation
Power Source Installation WARNING! AC POWER WIRING MUST BE INSTALLED AND CONNECTED BY QUALIFIED PERSONNEL ONLY. ALL ELECTRICAL COMPONENTS AND INSTALLATION PROCEDURES MUST COMPLY WITH ALL APPLICABLE LOCAL AND NATIONAL ELECTRICAL CODES. SOME CODES MAY REQUIRE A MEANS OF DISCONNECTION FROM THE AC POWER SOURCE, INSTALLED IN THE FIXED WIRING, HAVING A CONTACT SEPARATION OF AT LEAST 3mm IN THE LINE AND NEUTRAL POLES. - Page 4 When a Tri-Comm Cellular modem is installed in the 2nd output board position, the maximum number of stations on the 1st output board is increased up to 200 stations. It is recommended that the decoder modules are installed in an approved valve box to provide easy access to the wiring. Use 3M DBR/Y to waterproof all connectors. Recommended Controller-to-Decoder cable: 14 AWG (2.5mm ), solid copper, jacketed 2-conductor, direct burial. The preferred wire make and model is the Paige Irrigation Wire, Spec P7350D. Recommended Decoder-to-Solenoid cable: 14 AWG (2.5mm ), solid copper, 2-conductor, direct burial. The preferred wire make and model is the Paige Irrigation Wire, Spec P7351D. Burial Depth Toro recommends that the Controller-to-Decoder and Decoder-to-Solenoid cables should have a minimum cover of 6" (150mm). The irrigation plan may specify additional depth to be consistent with the depth of mainline or lateral pipe work and/ or soil conditioning procedures such as aeration. Installation procedures must comply with all applicable local and national electrical codes. • Use only wire approved for direct burial if installing the wires underground without conduit. • All field wiring splices must be accessible to facilitate troubleshooting and/or service. Step 1 – Route communication cable from the controller to the station decoder module installation location. The maximum wire length between the controller and the decoder module is 15,000' (4500m). Step 2 – Secure the communication wires to terminal 1 of the GDC output board. White wire onto the 1st terminal and black wire onto the second terminal. See Figure 4. Step 3 – Install the decoder module in a valve box. Record the decoder module’s address number found on the side label. This address number identifies the station(s) that the decoder module control. Step 4 – Secure the communication wires to the decoder module’s black and white wires. Connect the black communication wire to the black decoder module wire. Connect the remaining communication wire (red or white) to the white...
- Page 5 Figure 4 DC Latching Solenoid Black Station 1 Solid Red Station Wire - Connect to the Red/White solenoid wire Red with Black Stripe Station Wire - Connect to the Black solenoid wire Station 2 Solid Green Station Wire - Connect to the Red/White solenoid wire Green with Black Stripe Station Wire - Connect to the Black solenoid wire White Power/Communication Wire Black Power/Communication Wire...
- Page 6 Grounding Communication Cable The lightning arrester (Toro P/N DEC-SG-LINE) is required to protect the decoder module from lightning. Without lightning arresters, the decoders are vulnerable to lightning damage. In order for these arrester to discharge lightning energy efficiently, they must be properly grounded. To be effective, a resistance of 10 Ohms or less must be achieved at each earth ground point. Figure 5 illustrates the proper grounding and wiring of the arrester. Step 1 – Locate decoder’s power/communication wires (black and white wires). Step 2 – Strip the insulation from lightning arrester’s white wire and connect it to the white wires from the decoder and controller-to-decoder cable. Use 3M DBR/Y to properly water-proof all wire connections. (See Figure 5.) Step 3 – Strip the insulation from lightning arrester’s black wire and connect it to the black wires from the decoder and controller-to-decoder cable. Use 3M DBR/Y to properly water-proof all wire connections. (See Figure 5.) Step 4 – Connect the lightning arrester’s ground wire to the ground rod or plate’s wire. If the ground rod or plate is not pre- wired, use a 10 AWG bare copper wire. (See Figure 5.) IMPORTANT! If using a ground rod, verify that the straight line distance between the lightning arrester/ decoders and the ground rod is 8' (2.5m) +/–...
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Page 7: Pressure Sensor Installation
6, D. Step 3 – Route another wire from the Master Valve / Pump terminal and connect it to the master valve solenoid or pump relay. Step 4 – Connect the Negative/Equipment ground wire of the power source to the master valve solenoid or pump relay. Step 5 – Place the controller’s switch to ON. Toro Maintenance Remote (TMR) Receiver Plug Installation Figure 10 The GDC controller is fully ccompatible with the TMR remote. See TMR’s User’s Guide for operating and mounting instructions. Step 1 – Place the controller’s power switch to OFF. Step 2 – Route the TMR’s receiver plug cable into the controller. Step 3 – Connect the RJ45 plug into the socket labeled E in Figure 6. -
Page 8: Lithium Battery Replacement
Step 5 – Reattach the circuit board to the timing mechanism. Step 6 – Secure the ribbon cable back to the timing mechanism socket. Step 8 – Place the controller’s switch to ON. Figure 12 Figure 13 Push Retaining Clip to Release the PCB Disconnect the Ribbon Cable Electromagnetic Compatibility Domestic: This equipment has been tested and found to comply with the limits for a FCC Class A digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. The equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to the radio communications. Operation in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense. International: This is a CISPR 22 Class A product. In a domestic environment, this product may cause radio interference, in which case the user may be required to take adequate measures.Each stations can activate up to two solenoids. This product, utilizing a Class 2 transformer tested to UL1585, satisfies the requirements of a Class 2 Power Source as defined in the NFPA 70 (NEC), Article 725.121(A)(3). © 2011 The Toro Company, Irrigation Division • An ISO-9000-Certified Facility Form Number 373-0718 rev. A...