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4.
Before Installation
Checkup
• Check the fixing brackets and vent pipe yearly for damage or wear. Replace if necessary.
Precautions on Vent Pipe
• This appliance requires the use of special concentric type vent pipe specified by Noritz America.
Do not attempt to use materials that are not specified for use on this appliance.
Improper venting may result in a fire, 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 vent
termination from blockage by snow drifts or damage from snow falling off of roofs.
Check the Gas
• Check that the rating plate indicates the
correct type of gas.
• Check that the gas supply line is sized for
199,900 Btuh for this unit.
Check the Power
• The power supply required is 120VAC, at 60Hz.
May result in fire 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 and
possibly scalding. If absolutely necessary, use mixing valves to ensure output temperatures do
not get to scalding levels. Do not use a solar pre-heater with the quick-connect multi-system.
Do Not Use Equipment for Purposes Other Than Those Specified
• Do not use for other than increasing the temperature of the water supply, as unexpected accidents
may 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 otherwise
impure, treat the water with approved methods in order to ensure full warranty coverage.
4
DANGER
WARNING
NC199-DVC-CA
10.3a-2007
CAUTION
199,900 BTU
11,000 BTU
202
750
4.0
10.5"
0.65
3.1"
15
150
2
4.3a-2007
199,900
192,800
168,000
162,000
3.3
3.3
3.1"
3.1"
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