ION SYST0101CW Installation Instructions Manual page 12

4.5.2. System Control Mounting
• Turn off all power to equipment.
• If an existing control or thermostat is being replaced:
– Remove existing control from wall.
– Disconnect wires from existing control.
– Discard or recycle old control.
NOTE: Mercury is a hazardous waste, if existing control contains any mercury, it MUST be
disposed of properly. The Ion System does not contain mercury.
• Select the appropriate Ion System Control mounting configuration. Use the standard
backplate (mounting plate) provided with the wall control, or add the decorative trim plate in
addition to the standard backplate if desired. See the Decorative Trim Plate Section for more
detail.
• Route wires through large hole in mounting plastic. The hole may be enlarged, if required, to
accommodate existing installations; avoid opening the wire hole more than necessary. Level
backplate against wall and mark wall through two mounting holes.
• Drill two 3/16-in (4.8 mm) mounting holes in wall where marked.
• Secure mounting plastic to wall using two screws and anchors provided.
• Adjust length and routing of each wire to reach each wire entry on the connector backplate.
Strip 1/4-in (6.4 mm) of insulation from each wire.
• Match and connect thermostat wires to proper terminals on control backplate. See wiring
diagrams in the Wiring Diagrams Section.
• Push any excess wire into the wall. Seal hole in wall to prevent any air leaks. Air leaking
from behind the wall can affect measured temperature and humidity, and can affect
operation.
• Attach Ion System Control to the mounting plastic by lining up the plastic guides on the back
of the control with the opening on the mounting plastic and push on.
• Perform installation of all other system equipment (i.e. dampers, humidifier, UV lights, etc.).
See the equipment and device installation instructions for details.
• Turn on power to equipment.
4.6. Humidifier Connections
A 24VAC bypass or fan powered humidifier may be installed.
NOTE: Do NOT use a traditional humidistat to control humidifier operation. If a humidifier is
installed, let the Ion System Control operate humidifier.
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