Important: Do not apply voltage to the RS-485 output, BACnet® output, analog output, or control output. Severe damage may occur to
the unit if voltage is applied.
Important: Do not connect more than 24 VAC to any terminal.
Important: Use copper conductors only. Make all wiring in accordance with local,
national, and regional regulations.
Important: Do not exceed the unit’s electrical ratings. Exceeding the unit’s
electrical ratings can result in permanent damage to the modules and void any
warranty.
Important: Run all low-voltage wiring and cables separate from all high-voltage
wiring. Shielded cable is strongly recommended for input (sensor) and analog output
cables that are exposed to high electromagnetic or radio frequency noise.
Important: Electrostatic discharge can damage the unit. Use proper Electrostatic
Discharge (ESD) precautions during installation and servicing to avoid damaging the
unit.
Important: Do not connect supply power to the unit before checking all wiring
connections. Short circuits or improperly connected wires can result in damage to the
unit and void any warranty.
Use stranded wire and follow good wiring practices:
- Control cables should cross power cables at a 90-degree angle.
- Use a consistent color code to maintain polarity.
- Use series configuration (daisy-chain wiring) for connecting the NSD to room pressure monitors and controllers.