VSD-1C
Page 3
General installation guidelines
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It is recommended to install the unit in a hallway to limit the VSD-1C exposure to
noxious gases.
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In order to avoid condensation problems inside the VSD-1C, it is recommended to
install the module on an inside wall. If it is not possible, use spacers to have an air
gap between the wall and the module.
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The VSD-1C should be installed in easy-access location but away from damaging
elements (heat, cold, water, direct sunlight…).
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Do not drill the face, the side, the top or the underside of the module.
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Do not install the VSD-1C near high-voltage equipment, power supply or transformer.
Wiring Procedure
1. Open the VSD-1C module enclosure.
2. Verify the technical specifications to know which wire to use.
3. Connect the equipment to the 2 black terminal block identified as FAN as shown
in figure 1.
4. Connect the power source to the 2 black terminal block identified as LINE as
shown in figure 1.
5. Set the JP1 jumper (refer to figure 2 for the location of the jumper) to determine
the correct input type. The two types of input are: 0-20 mA (jumper on the 2 left
pins) and 0-10 Volts (jumper on the 2 right pins)
6. Connect the 0-10 V or the 4-20 mA signal to the 2 green terminal block identified
as INPUT as shown in figure 1.
IMPORTANT: Low-voltage and high-voltage wire must be passed through different
conducts at least 1 foot (30 cm) apart. If low-voltage and high-voltage conduits must
be crossed, the crossing must be at a 90-degree angle.
7. Make sure that the voltage selector switch is set to the correct voltage before
powering up the VSD-1C (refer to figure 2 for the location of the voltage selector
switch).
8. Power up the VSD-1C module. Verify that the module operates correctly.
9. Close the VSD-1C enclosure. Don’t forget to put a security screw or a padlock.
