EnergyLogic EL-140H, Installation & Operation Manual, Page: 39 / 96

6.3 Main Electrical Connection
Personally verify that the main circuit is OFF and Locked-Out before making
any wiring connections. Use only copper conductors. All wiring installations should meet
National Electric Code (NEC) and local guidelines. Canadian wiring installations are to be done
in accordance with the Canadian Electrical Code, Part I.
1. Have a certified electrician install a wall mounted or ceiling mounted junction box near
the furnace cabinet. It is recommended that the box be switchable with a lock-out
feature. Provide wiring to the junction box from the building service panel (with main
power off). Verify the use of a dedicated circuit (115VAC/single phase circuit breaker –
25 Amp maximum per UL) - wired to code for the size and type of service used.
2. Use flexible metal conduit with white, black and green wires, NEC size 12 AWG. Route
the conduit from the cabinet wire box to the installed junction box. Connect the conduit
to wire box (knock-outs on box).
3. Using wire nuts connect the black wire (Load) from the conduit to the black wire of the
junction box, the white wire (Neutral) to the white wire, and the green wire (Ground) to
the bare copper wire inside the junction box. Install the junction box cover.
4. Note: If making your own harness: Remove cabinet wire box cover. On the cabinet wire
box terminal block, connect the black wire to the terminal marked BLK, the white wire to
the terminal marked WHT and the green ground wire to the terminal marked GND.
Insert stripped ends of wires into the terminal holes. Gently tug on wires to make sure
that the connections are secure. Reinstall cabinet wire box cover.
Install switchable junction box
for main wire harness power
Main power connection (EL-200H shown)
Cabinet Wire Box
Connect Main Power in
cabinet wire box. 12
AWG Wire in Conduit
(Black, White, Ground)
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