Install the Energy Meter

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CAUTION
Never perform work on live circuits. De-energize the electrical panel before continuing.
  1. Attach the energy meter's mounting plate to the inside of the electrical panel, and push the meter onto the plate.
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    Note
    The energy meter requires 8 x 8 x 4 inches of space inside the electrical panel. This clearance allows for the space required for routing wiring to the energy meter.
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    Note
    The maximum distance the energy meter can be installed from the Wall Connector (wired RS-485 connection) is 400 ft (122 m).
  2. Wire the meter voltage taps:
    1. Connect the voltage line harness leads to a dedicated circuit breaker (not exceeding 20A) of corresponding phase inside the distribution board:
      Voltage Harness Port/Wire ColorDistribution Board Connection
      A/BlackL1 breaker terminal
      B/RedL2 breaker terminal
      C/BlueCapped with wire nut
      N/WhiteNeutral busbar
    2. Plug the voltage line harness into the meter.
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      Note
      If a dedicated breaker is not available, the voltage line harness can be spliced to existing breakers if allowed in your jurisdiction.
      Figure 1. Voltage Line Harness Wired to Dedicated Breaker (Left) or Spliced to Existing Breaker (Right)
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      Note
      The blue wire of the voltage line harness is capped with a wire nut for split phase installations. This wire is only needed for three-phase installations.
  3. Install the current transformers (CTs):
    1. Clip the CTs around Line 1 and Line 2 of the Panel Service - the main conductors feeding the panel.
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      Note
      Ensure the "Source this Side" label faces away from the breakers, and towards the grid.
      Figure 2. CT Orientation in Relation to Power Flow (Label to Face Power Source, in this Case Grid)
    2. Plug the CTs into the meter:
      1. The CT measuring Line 1 can be plugged into either Port 1 or Port 4.
      2. The CT measuring Line 2 must be plugged into Port 2.
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      Note
      It is critical that each CT have the correct voltage reference. Ensure the CT is plugged into the correct port based on the phase it is measuring.
  4. Establish a hardwired RS-485 connection between the Energy Meter and Wall Connector using the included 2-conductor wire harness:
    1. Plug the provided wire harness into the port.
    2. Extend the harness leads by splicing 16 AWG shielded twisted pair cable to the harness.
    3. If applicable, land the drain wire on the ground bar in the panel.
    4. Locate the terminals on the backside of Wall Connector.
    5. Land the wire corresponding to the red lead of the harness to the red port, and the black lead to the white port.
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      Note
      The wiring configuration for RS485 is critical and cannot be reversed after installation, as improper setup may lead to operational failures or equipment damage. Ensure correct polarity and termination during initial installation.
    6. Manage the communication wires so that they are not pinched when mounting the Wall Connector to the wire box.
  5. Energize the panel and turn on the circuit breaker(s). The energy meter will chime when it has powered on and the meter LED will illuminate in green.