Before Installation - Noritz NR83-DVC Installation Manual

4.

Before Installation

Checkup
• Check the fi xing 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 specifi ed by Noritz America.
Do not attempt to use materials that are not specifi ed for use on this appliance.
Improper venting may result in a fi re, 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 termi-
nation 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
180,000 Btuh for this unit.
Check the Power
• The power supply required is 120VAC, at 60Hz.
May result in fi 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 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 Specifi ed
• 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
NR83-DVC NR83-DVC
10.3b-2008 10.3b-2008
CAUTION
180,000 BTU 180,000 BTU
18,000 BTU 18,000 BTU
182 182 689 689
4.0 4.0 10.5" 10.5"
1.0 1.0 2.5" 2.5"
150 150
15 15
2
4.3b-2008 4.3b-2008
180,000 180,000 172,000 172,000
151,200 151,200 144,500 144,500
2.2 2.2
2.5" 2.5"