64
Make sure that the cold water supply line and the hot water supply line are properly connected to
the Water Heater.
Make sure that appropriate heat insulation measures are taken according to regional climate.
(e.g. wrapping with heat insulation materials, using electric heaters)
(Only for crossover mode) Make sure the crossover valve is installed at the furthest fixture from
the Water Heater on the hot water line.
Connecting the Condensate Drain
(See page 47 - 48)
Yes No
Make sure that the condensate drain piping is connected.
Make sure that corrosion resistant material is used for the condensate drain piping.
Make sure that the size of the condensate drain piping is 1/2 in or larger.
Make sure that the condensate drain piping slopes towards the inside floor drain or condensate pump.
Make sure that the end of the condensate drain pipe is open to the atmosphere.
Make sure that the condensate has been treated before disposal as necessary.
(when required by local code or when the condensate could cause damage)
Make sure that measures are taken to prevent the condensate drain lines from freezing.
(e.g. insulation material, heat tape or electric heater)
Connecting Electricity
(See page 49 - 51)
Yes No
Make sure that the electrical supply is 120VAC at 60 Hz.
Make sure the grounding resistance is less than 100 Ω.
Make sure the Remote Controller Cord is correctly installed.
(Only for crossover mode) Make sure the connector marked “Crossover” is connected.
Installation of the Remote Controller
(See page 52 - 57)
Yes No
Make sure that the location of the Remote Controller is appropriate.
Check the Remote Controller operation accordance with the Owner’s Guide.
Make sure that the display appears on the Remote Controller.
Setting the DIP Switches
(See page 58)
Yes No
Make sure that all DIP switches are set correctly.
Setting for Recirculation
(See page 59)
Yes No
(When conforming to Title 24) Make sure that recirculation settings are set appropriately.
Trial Operation
(See page 60 - 62)
Yes No
Open a hot water fixture, make sure the BURNER ON indicator or the Flame indicator is displayed
on the Remote Controller and hot water is present at the fixture.
Clean the filter in the cold water inlet after the trial operation.
If the Water Heater will not be used immediately, do the following.
• Close all gas and water shutoff valves.
• Drain all the water in the Water Heater and the plumbing system.
• Disconnect the electrical power to the Water Heater.
Make sure there is no error code indication “63” on the Remote Controller after trial operation.
Make sure there is no gurgling sound occurs when the pump operating.
Explain the “Important Safety Information”, “Operation Procedures” and “Follow-up Service”
according to the Owner's Guide to the customer.
Quick Connect Multi-System Installation
(See page 66 - 67)
Yes No
Make sure that only one Remote Controller is installed.
Checklist After Installation
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