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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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Flex Vent 2 in. Kit – 25 ft
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(VIEW FROM BOTTOM)
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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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[How to tighten the Vent Pipe]
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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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Connecting the Gas Supply
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Connecting the Water Supply
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(Back Flow Preventer)
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• Freezing is prevented within the Water Heater
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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 on-demand switch
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10.4 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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5. Secure the remote controller wires by winding
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1. Check if the Remote Controller is installed
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12 Setting the DIP Switches
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13 Setting for Recirculation
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14 Trial Operation
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5. To change ignition priority on the Water
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Handling after trial operation
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15 Checklist After Installation
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16 Plumbing Applications
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17 Installation of the Quick Connect
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18.2 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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