Power Box Shown With Cover Removed
Figure 2. Terminal Block Location
2.1 220V Input Power
Innovation-Edge units operate internally on 120 VAC power. All Innovation-Edge units that will
connect to a 220 VAC power source must be ordered with a 220 VAC to 120 VAC transformer. This
transformer is installed inside the unit, as shown in Figure 3. The 220 VAC electrical connection is
made in the Power Box to the same terminals as 120 VAC connections are made (see Figure 2). The
transformer is pre-wired to convert the power to 120 VAC. No further steps are needed.
Figure 3. 220V Transformer – Front Frame & Panel and Side Panels Removed
3 Provisions for Service
Designers must provide emergency shutoffs and other devices to satisfy electrical codes. It is also
recommended to provide an electrical shutoff disconnect switch of suitable load carrying
characteristics on or near each water heater. No electrical boxes or field components should be
mounted to the surface of the unit or where they would interfere with the removal of the side or top
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