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N-0751M-DVC
Installation Manual
52 pgs1.69 Mb0
Installation Manual
27 pgs974.9 Kb0
Owner's Manual
28 pgs1.13 Mb0
Service Manual
95 pgs9.42 Mb0

Noritz NC199-DVC, NR98-DVC, N-0751M-DVC Owner's Manual

TANKLESS GAS WATER HEATER
*SBA8359*
Owner’s Guide
Model NC199-DVC
FOR USE IN RESIDENTIAL, COMMERCIAL, OR MANUFACTURED HOME APPLICATIONS.
WARNING
If the information in this manual is not followed exactly, a fire or explosion may result causing property damage, personal injury, or death.
- Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other appliance.
- WHAT TO DO IF YOU SMELL GAS
• Do not try to light any appliance.
• Do not touch any electrical switch; do not use any phone in your building.
• Immediately call your gas supplier from a neighbor’s phone. Follow the
gas supplier’s instructions.
• If you cannot reach your gas supplier, call the fire department.
- Installation and service must be performed by a qualified installer, service agency or the gas supplier.
Thank you for purchasing this Noritz Tankless Gas Water Heater. Before using, please:
CERTIFIED
R
Low NOx
Approved by
SCAQMD
Accepted For Use
City of New York
Department of Buildings
MEA 19-03-E
NORITZ America Corporation
SBA8359 Rev. 09/09
Important Safety Information-1
To prevent damage to property and injury to the user, the icons shown below will be used to warn of varying levels of danger. Every indication is critical to the safe operation of the water heater and must be understood and observed. Potential dangers from accidents during installation and use are divided into the following four categories. Closely observe these warnings; they are critical to your safety.
Icons warning of risk level
This is the safety alert symbol. It is used to alert you to potential personal injury hazards. Obey all safety messages that follow this symbol to avoid possible injury or death.
DANGER indicates an imminently hazardous situation which,
DANGER
WARNING
CAUTION
CAUTION
if not avoided, will result in death or serious injury.
WARNING indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury.
CAUTION indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury.
CAUTION used without the safety alert symbol indicates a potentially hazardous situation which, if not avoided, may result in property damage.
Other icons
Electric Shock.
Prohibited
Vapors from flammable liquids will explode and catch fire causing death or severe burns.
Do not use or store flammable products such as gasoline, solvents or
Prohibited
Prohibited
adhesives in the same room or area near the water heater.
Keep flammable products:
1. Far away from the water
2. In approved containers.
3. Tightly closed.
4. Out of children’s reach.
Hot Water Heater temperatures over 125 °F can cause severe burns instantly or death from scalding.
Children, disabled and elderly are at the highest risk of being scalded. Feel water temperature before bathing or showering. Temperature limiting valves are available, ask professional person.
heater.
High Temperature.
No flame.
Vapors:
1. Cannot be seen.
2. Vapors are heavier than air.
3. Go a long way on the floor.
4. Can be carried from other rooms to the main burner by air currents.
Be sure to do.
Don’t touch.
DANGER
Ground.
Don’t disassemble the equipment.
Don’t touch with a wet hand.
2
(Continued)
(Continued)
Prohibited
Do not use the water heater if the concentric pipe is displaced, has holes, is clogged or is corroded.
WARNING
Prohibited
Do not allow anyone to change the water temperature while hot water is being used.
To prevent scalding, do not change the wa­ter temperature to a higher setting.
No flame.
A. This water heater does not have a
pilot. It is equipped with an ignition device that automatically lights the burner. Do not try to light the burner by hand.
B.
BEFORE OPERATING smell all
around the water heater area for evidence of leaking gas. Be sure to smell next to the floor because some gas is heavier than air and will settle on the floor.
WHAT TO DO IF YOU SMELL GAS.
• Do not try to light any appliance.
• Do not touch any electrical switch; do not use any phone in your building.
•
Immediately call your gas supplier from a neighbor’s phone. Follow the gas supplier’s instructions.
•
If you cannot reach your gas supplier, call the fire department.
C. Use only your hand to turn the
gas valve knob. Never use tools. If the knob will not turn by hand, don’t try to repair it. Call a qualified service technician. Force or attempted repair may result in a fire or explosion.
D. Do not use this water heater if
any part has been under water. lmmediately call a qualified service technician to inspect the water heater and to replace any damaged parts.
Be sure
to do.
Be sure
to do.
Prohibited
High
Temperature.
When a gas leak is noticed:
1. Stop use immediately
2. Close the gas valve
3. Open windows and doors
If you detect abnormal combustion or abnormal odors, or during an earthquake, tornado or fire:
1. Turn off the hot water supply
2. Turn off the power to the water heater
3. Turn off gas and water supply valve.
4. Call the nearest Noritz agent
Explosion Hazard ; If the temperature and pressure relief
valve is dripping or leaking, have a qualified service technician replace it. Do not plug or remove the valve.
Failure to follow these instructions can result in fire or explosion, and personal injury or death
Check the temperature of the running hot water before entering the shower.
Check the temperature before stepping into the bath tub.
(Continued)
3
Important Safety Information-2
(Continued)
WARNING
Prohibited
Prohibited
Do not place the flue terminal in an indoor environment by means of adding walls and ceiling (Do not en­close using corrugated sheets, etc.)
Flue terminal
Carbon monoxide poisoning or fire may occur as a result.
Do not place outdoors
Rain may enter the unit or the burner fire may be blown by the wind, causing malfunction or fire as a result.
Outdoor
Prohibited
Prohibited
Prohibited
Prohibited
Be sure
to do.
For Natural Gas
Carbon Monoxide Poisoning Hazard. Do not install this water heater in a recreational vehicle or on a boat.
Do not use combustible chemicals such as oil, gasoline, benzene etc. in the near the heater or the flue terminal.
Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other appliance.
Do not place or use a spray can near the heater or the flue terminal.
Be sure the gas/power supplied matches the gas on the rating plate.
Be sure
to do.
Prohibited
Leave the proper clearance between the water heater and nearby objects (trees, timber, boxes with flammable materials etc.).
Upper: Min. 12"
Left side: Min. 2"
Front: Sug. 24"
*
*
Indicates suggested clearances for maintenance.
Sug.3" from concentric pipe*
Right side: Min. 2"
Do not place combustibles such as laundry, newspapers, oils etc. near the heater or the flue terminal.
Flue terminal
Be sure
to do.
Prohibited
Prohibited
NC199-DVC
199,900 BTU
11,000 BTU
202
750
4.0
10.5"
0.65 3.1"
150
10.3a-2007
15
4.3a-2007
199,900
2
192,800
Installation and service must be performed by a qualified installer, service agency or the gas supplier.
If this unit will be installed in a beauty salon or other location where hair spray or aerosols will be used, locate the unit in a seperate area that is supplied with fresh air from outdoors.
Do not use hair spray or spray detergent in the vicinity of the heater.
4
(Continued)
(Continued)
Prohibited
Don’t touch
with a wet
hand.
Be sure
to do.
Don’t
disassemble
the equipment.
Be sure
to do.
Do not allow small children to play unsupervised in the bathroom. Do not allow small children to bathe unsupervised.
Do not touch the power cord with wet hands.
Electric
Shock.
Consult the nearest Noritz agent if the water heater location needs to be changed.
Contact a qualified service technician for any necessary repairs, service or maintenance.
Contact Noritz before using with a solar pre-heater.
California Proposition 65 lists chemical substances known to the state to cause cancer, birth defects, death, serious illness or other reproductive harm. This product may contain such substances, be their origin from fuel combustion (gas, oil) or components of the product itself.
The gas conversion kit shall be installed by a qualified service agency in accordance with the manufacturer’s instructions and all applicable codes and requirements of the authority having jurisdiction. The information in the instructions must be followed to minimize the risk of fire or explosion or to prevent property damage, personal injury, or death. The qualified service agency is responsible for the proper installation of this kit. The installation is not proper and complete until the operation of the converted appliance is checked as specified in the manufacturer’s instructions supplied with the kit.
Ground.
Be sure
to do.
Prohibited
Prohibited
Be sure
to do.
CAUTION
Be sure to electrically ground the unit.
Keep power cord free of dust.
Do not use the water heater for other than hot water supply, shower and bath.
Do not use a broken or modified power cord. Do not bind, bend or stretch power cords. Do not scratch, modify, or subject them to impact or force.
To prevent burns or scalding, turn off the power button and wait until the equipment cools before per­forming maintenance.
Prohibited
Prohibited
Prohibited
Don’t
touch.
Do not turn off the water heater while someone is bathing.
Do not cover the water heater and the flue terminal, store trash or debris near it, or in any way block the flow of fresh air to the unit.
Do not install in locations where excessive dust or debris will be in the air.
Do not touch the flue terminal and concentric pipe during or immediately after operation of the water heater.
5
Important Safety Information-3
CAUTION
Do not drink water that has been inside the unit for an extended period of time. Do not drink the first use of hot water from the unit in the morning.
Clean the filter on the water inlet as frequently as required by the quality of your local water.
Keep the area around the unit clean.
If boxes, weeds, cobwebs, cockroaches etc. are in the vicinity of the unit, damage or fire can result.
Do not install the equipment where the exhaust will blow on walls or windows.
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.
Problems resulting from scale formation are not covered by the warranty.
Check ignition during use and extinction after use.
Do not run water through the unit when unit is not on.
When discharging hot water, make sure the unit is ON. If water is run through the unit with the unit OFF, water may condense inside the unit and cause incomplete combustion or damage to the internal electrical components.
This unit is only approved for installation up to 4500 ft. above sea level.
For installations at higher elevations, contact Noritz America for Instructions.
Do not disassemble the operation panel.
Do not use benzene, oil or fat detergents to clean the operation panel.
This may cause deformation.
Do not get the operation panel wet.
Although it is water resistant, too much water can cause damage.
Do not splash water on the operation panel. Do not expose the operation panel to steam.
Do not locate the operation panel near stoves or ovens, this may cause damage or failure.
Preventing damage from freezing ( p.17)
Damage can occur from frozen water within the device and pipes even in warm environments. Be sure to read below for appropriate measures. Repairs for damage caused by freezing are not covered by the warranty.
Take necessary measures to prevent freezing of water and leakage of gas when leaving the unit unused for long periods of time. ( p.18)
If it is snowing, check the flue terminal for blockage.
For single-handle fixtures or valves, discharge water setting the handle completely to the water side.
6
Do not use parts other than those specified for this equipment.
Contents
Important Safety Information....................................................................... 2
Contents ........................................................................................................ 7
General Parts
Main Unit.................................................................................................... 8
Operation Panel ........................................................................................ 9
Initial Operation ........................................................................................... 10
How to Use
Muting the Operation Panel ..................................................................... 11
Setting and Using the Water Heater........................................................ 12
Flow Meter Alarm ...................................................................................... 14
Adjusting the Maximum Output Temperature........................................ 16
Preventing Damage from Freezing ............................................................ 17
Regular Maintenance................................................................................... 19
Troubleshooting .......................................................................................... 21
Follow-up Service ........................................................................................ 25
Specifications .............................................................................................. 27
7
General Parts
Main Unit
Indoor Wall Mounted, Power Vent/Sealed Model
Concentric Pipe
Front Cover
Operation Panel
Water Drain Valve (with Water Filter)
(Inside Water Inlet) ( p.20)
Pressure Relief Valve
Water Supply Valve
Gas Supply Valve
* The above illustration shows an example of installation.
The exact installation configuration may be slightly different.
8
Operation Panel (RC-7649M)
What is actually displayed depends on how the water heater is set.
Burner On Indicator
When burning, the indicator is lit.
( p.13 and 15)
Priority Indicator
When this indicator is lit, the hot water temperature can be set. ( p.12)
Temperature Setting
(Ex.: 110°F)
Flow Meter Setting
The display will flash after hitting the flow meter alarm set button.
( p.15)
Error Code
A number will flash if a failure occurs.
( p.24)
Setting Buttons
For setting the hot water temperature, the flow meter alarm, and other settings.
Power On/Off Button
For turning the heater on and off.
Flow Meter Alarm Set Button
For setting the flow meter alarm.
( p.14 - 15)
* Before use, remove the protective sheet from the operation panel surface.
9
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