HARDWARE INSTALLATION HARDWARE INSTALLATION
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Many buildings have separate apartments or efficiency apartments being served by the main
electric panel with only one electric utility meter. The e2 allows you to measure the usage for
these separate apartments, so you can determine how much electricity is being consumed by
the tenants. In Canada this is for information purposes only as efergy monitors are not sold or
intended to be used for revenue purposes.
If you wish to monitor various 120V and 240V circuits from the same panel, you can identify
which phase (or bus) these circuits are being fed from. Separate the wires for the circuits by
phase or bus.
Note - 1 A 120/240V residential panel has 2 busbars, each providing 120V power to the
loads/appliances. Some 120V circuit breakers are fed from one bus (bus A) and other circuits
are fed from the other bus (bus B).
Note - 2 Commercial and industrial electric panels may be served by two or three phases,
(normally designated as phases A, B & C). Some circuit breakers are one phase, others two
phases and some major equipment or loads may use three phases.
You can clip a CT sensor around the wire for each of the phases you wish to measure power.
This will measure the combined current flow in all of these wires (phases).
You can also place a CT sensor around a number of wires on the same phase to measure the
total amount of power traveling through the wires on that phase.
MOUNTING INDIVIDUAL OR MULTIPLE CIRCUITS
Locate Your Electrical Panel
You can normally find your main electrical panel inside your home on the other side of the wall
from your electric utility meter. You may also follow the conduit from your utility meter. In many
cases it is located in the garage, utility room, laundry room or hallway inside your home.
If you live in an apartment, it may be in the kitchen, a utility closet or hallway. Also in the case
of an apartment, your voltage may be 120/208V. Hardware installation follows the same steps
in this case as with an 120/240V panel.
Find the Main Feed Wires for Your Home
Remove the outside cover from your electrical panel and locate the main feed wires. Sometimes,
there will be an additional cover inside. These will be the wires that go to the main breaker in
your service panel, typically rated at 100 or 200A.
Mounting the Transmitter
Plug the CT sensor cables into the transmitter. Then mount the transmitter on the wall next to or
above the electric panel. This will make it easier to replace the batteries (although the batteries
will last for a long time). If the panel is in a finished area, you may mount the transmitter inside
the electrical panel. This may reduce transmission distance.
Shop for Power Metering products online at:
1.877.766.5412
www.PowerMeterStore.ca
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