Follow these guidelines when you mount a ZEC:
Important: When the air supply to the VAV box is below 10°C (50°F), make sure that any condensation on the VAV box, particularly on the damper shaft, does not enter the ZEC electronics. Mount the ZEC vertically above the damper shaft to allow any shaft condensation to fall away from the ZEC. Additional measures may be required in some installations.
- Ensure that the mounting surface can support the ZEC and any user-supplied enclosure.
- Mount the ZEC on a hard, even surface whenever possible.
- Use shims or washers to mount the ZEC securely and evenly on the mounting surface.
- Mount the ZEC in an area free of corrosive vapors that matches the ambient conditions specified in the ZEC410 VAV Controller technical specifications section.
- Provide at least 50 mm (2 in) on the top, bottom, sides, and front of the controllers for cable and wire connections and for adequate ventilation through the controller.
- Do not mount the ZEC in areas where electromagnetic emissions from other devices or wiring can interfere with controller communication.
- Avoid mounting the ZEC on surfaces with excessive vibration.
- Wear the appropriate personal protective equipment (PPE). For example, a hard hat, safety glasses, steel toe boots, and gloves.
Follow these additional guidelines when you mount a field controller in a panel or enclosure:
- Do not install the ZEC in an airtight enclosure.
- Mount the ZEC so that the enclosure walls do not obstruct cover removal or ventilation through the controller.
- Mount the ZEC so that the power transformer and other devices do not radiate excessive heat to the controller.