A.O. Smith Innovo 12-160, Installation, Service & Maintenance Manual

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Use the "adapter box concentric to parallel - water heater side" (part number 0312209) for
C63 parallel systems.
8.8 Electrical connections
Warning
Leave the water heater electrically isolated until you are ready to commission it.
Caution
The water heater is phase-sensitive. It is absolutely essential to connect the mains live
(L) to the live of the water heater and the mains neutral (N) to the neutral of the water
heater.
Caution
There must be no potential difference between neutral (N) and earth (
A
). Use an isolating
transformer (see section 8.8.3.1) in the supply circuit when there is a potential difference.
8.8.1 Preparation
Remove the cover of the water heater to make the electrical section and the terminal block
visible:
Use a hex driver to remove the screw (1) at the cover.
Hold the cover at the sides.
Move the cover to the front and lift it from the water heater.
Fig. Remove the cover
1
w
c
1.
2.
3.
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