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Material and Tools Required
The following tools and supplies may be required for installation:
• DIN rail, type NS35/7.5 (35mm x 7.5mm), recommended for panel mount installation. Length of DIN rail should be
minimum 6.5 “ ( 165 mm ).
• If using an VWG-PS-DC power supply, use UL listed, Class 2, 24Vac transformer, supplying a minimum of 5VA to
the VWG. Note that the VWG-PS-DC power supply provides isolation — a dedicated transformer is not required.
• Suitable screws and screwdriver for mounting DIN rail, or if DIN rail not used, for mounting bases of VWG
controller and VWG-PS-DC power supply (if used).
Precautions
This document uses the following warning and caution conventions:
Cautions remind the reader to be careful. They alert readers to situations where there is a chance that the reader might
perform an action that cannot be undone, might receive unexpected results, or might lose data. Cautions contain an
explanation of why the action is potentially problematic.
Warnings alert the reader to proceed with extreme care. They alert readers to situations where there is a chance that the
reader might do something that can result in personal injury or equipment damage. Warnings contain an explanation o
why the action is potentially dangerous.
Safety Precautions
The following items are warnings of a general nature relating to the installation and start-up of the VWG
controller. Be sure to heed these warnings to prevent personal injury or equipment damage.
• Depending on power module used, the circuit powering the VWG is 24Vac at 50/60 Hz (if using the VWG-PS-DC power
supply or 120 Vac at 50/60 Hz (if using the VWG-PS-AC power supply). Disconnect power before installation or servicing to
prevent electrical shock or equipment damage.
• Make all connections in accordance with national and local electrical codes. Use copper conductors only.
• To reduce the risk of fire or electrical shock, install in a controlled environment relatively free of contaminants.
• This device is only intended for use as a monitoring and control device. To prevent data loss or equipment damage, do
not use it for any other purpose.
• All Viconics wireless gateways and related wireless thermostats are to be used only as operating controls. Whenever a control
failure could lead to personal injury and/or loss of property, it becomes the responsibility of the user to add safety devices
and/or alarm system to protect against such catastrophic failures.
Static Discharge Precautions
Static charges produce voltages high enough to damage electronic components. The microprocessors and
associated circuitry within a VWG controller are sensitive to static discharge. Follow these precautions when
installing, servicing, or operating the system:
• Work in a static-free area.
• Discharge any static electricity you may have accumulated. Discharge static electricity by touching a known,
securely grounded object.
• Do not handle the printed circuit board (PCB) without proper protection against static discharge. Use a wrist strap when
handling PCBs. The wrist strap clamp must be secured to earth ground.
