NORITZ AMERICA NCC1991-DV Installation Manual
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Contents
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44. Before InstallationCheckup• Check the ¿xing brackets and vent pipe yearly for damage or wear. Replace if necessary.DANGERDo Not Use Equipment for Purposes Other Than Those Speci¿ed• Do not use for other than increasing the temperature of the water supply, as unexpected accidentsmay occur as a result.Check Water Supply Quality• If the water supply is in excess of 12 grains per gallon (200 mg/L) of hardness, acidic or otherwiseimpure, treat the water with approved methods in order to ensure full warranty coverage.WARNINGCAUTIONCheck the Gas• Check that the rating plate indicates thecorrect type of gas.• Check that the gas supply line is sized for199,900 Btuh.Check the Power• The power supply required is 120VAC, at 60Hz.Using the incorrect voltage may result in ¿re or electric shock.Use Extreme Caution if Using With a Solar Pre-Heater• Using this unit with a solar pre-heater can lead to unpredictable output temperatures andpossibly scalding. If absolutely necessary, use mixing valves to ensure output temperatures donot get to scalding levels. Do not use a solar pre-heater with the quick-connect multi-system.Precautions on Vent Pipe Replacement• The vent system will almost certainly need to be replaced when this appliance is being installed.Only use vent materials that are speci¿ed in this Installation Manual for use on this appliance. Referto the "Vent Pipe Installation" section for details. If PVC, CPVC, or Category IV listed pipe is alreadyinstalled, check for punctures, cracks, or blockages and consult with the vent pipe manufacturerbefore reusing.Improper venting may result in ¿res, property damage or exposure to Carbon Monoxide.Snow Precaution• If this product will be installed in an area where snow is known to accumulate, protect the venttermination from blockage by snow drifts or damage from snow falling off of roofs. |
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