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About the Water Heater
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1 Before Installation
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• This appliance is suitable for combination
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Anchoring Screw (× 7)
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Service Valve Kit
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HEIGHT OF EACH FITTING FROM CASE
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2.6 External View
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3 Choosing an Installation Location
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Installation in the vicinity of gas ranges,
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State of California: The Water Heater must be
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When utilizing an indoor air supply, if the Water
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5 Installation of the Water Heater
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5.3 Filling the condensate container
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6 Venting the Water Heater
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6.2.2 Installation Instructions
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For 2 in. flexible PP material
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6.2.3 Termination Considerations
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[DIP Switch Adjustment]
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Below items are required for connecting.
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6.4 Vent Pipe Installation (Direct Vent)
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2 in. pipe*
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(e.g. 2 in. Concentric Termination installation)
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6.5.2 Consideration for Installation
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6.5.3 Combustion Air
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6.5.4 Horizontal Vent Termination
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6.5.5 Vertical Vent Termination
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For Flex Vent 2 in. Conversion Kit
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• When installing this Water Heater outdoors, the
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7 Connecting the Gas Supply
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• A gas shut off valve must be installed on the
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[Gas pipe sizing tables]
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8 Connecting the Water Supply
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water inlet and
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Flushing the Heat Exchanger
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9 Connecting the Condensate Drain
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After installing the condensate drain piping
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10 Connecting Electricity
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Connecting the Remote Controller Cord
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Quick Connect Cord
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11 Installation of the Remote Controller
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1. Apply the Mounting Packing to the rear side of
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Remote Controller (× 1)
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2. Remove the cover from the Remote Controller.
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[To remove the cover after installation of the
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12 Setting the DIP Switches
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13 Trial Operation
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1) Close the hot water valve and the water
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14 Checklist After Installation
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15 Plumbing Applications
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Size the pump to provide a
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16 Installation of the Quick Connect
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17.2 Procedure for Flushing the Heat Exchanger
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For Single Water Heater
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NOTE Check whether the reverse
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