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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 

6" (15.25cm)

9 1/8" (23.175cm)

Figure 1

 

Summary of Contents for GDC 200

Page 1: ...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 expo...

Page 2: ...er wire near the top of the ground rod Avoiding wire bends of less than 8 20 3cm radius and more than 90 route the wire through conduit and into the cabinet Secure the wire to the copper ground lug Ma...

Page 3: ...e power cables and secure them to the terminal block Reference Table 1 for the appropriate type of power connection Step 4 Reinstall the power supply cover Step 5 Apply power to the controller WARNING...

Page 4: ...ll 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...

Page 5: ...ation Wire Connect to the Red White solenoid wire Green with Black Stripe Station Wire Connect to the Black solenoid wire Station 3 Solid Orange Station Wire Connect to the Red White solenoid wire Ora...

Page 6: ...m 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 wi...

Page 7: ...ontrol a master valve or a pump relay if the system requires it Step 1 Place the controller s power switch to OFF Step 2 Connect the Positive Hot wire of the power source that controls the master valv...

Page 8: ...the ribbon cable back to the timing mechanism socket Step 8 Place the controller s switch to ON Electromagnetic Compatibility Domestic This equipment has been tested and found to comply with the limit...

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