Noritz NCC300OD Bedienungsanleitung

Potential dangers from accidents during installation and use are divided into the following three

categories. Closely observe these warnings, they are critical to your safety.

Prohibited Disconnect

Power Ground Be sure to do

WARNING: If the information in this manual is not followed exactly, a re or explosion may result

causing property damage, personal injury or death.

NORITZ AMERICA

CORPORATION

Installation Manual

CONDENSING TANKLESS GAS WATER HEATER

NCC300OD (GQ-C5032WZ US) (Outdoor Installation)

DANGER indicates an imminently hazardous situation which,

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.

DANGER

WARNING

CAUTION

SBB80YZ-1

Rev. 11/20

Requests to Installers

• In order to use the water heater safely, read this installation manual carefully, and follow the

installation instructions.

• Failures and damage caused by erroneous work or work not as instructed in this manual are not

covered by the warranty.

• Check that the installation was done properly in accordance with this Installation Manual upon

completion.

•

After completing installation, either place this Installation Manual in a plastic pouch and attach it to

the side of the Water Heater (or the inside of the pipe cover or recess box if applicable), or hand it

to the customer to retain for future reference.

CAUTION

*SBB80YZ*

FOR USE IN COMMERCIAL OR MANUFACTURED HOME APPLICATIONS.

Installation must conform with local codes, or in the absence of

local codes, the National Fuel Gas Code, ANSI Z223.1/NFPA 54-

latest edition and/or the Natural Gas and Propane Installation

Code CSA B149.1 - latest edition.

When applicable, installation must conform with the Manufactured

Home Construction and Safety Standard, Title 24 CFR, Part

3280 or the Canadian Standard CAN/CSA-Z240 MH Mobile

Homes, Series M86.

Noritz America reserves the right to discontinue, or change at any

time, the designs and/or specications of its products without notice.

CERTIFIED

Low NOx Approved by SCAQMD

14 ng/J or 20 ppm

(Natural Gas Only)

Included Accessories

The following accessories are included with the unit.

Check for any missing items before starting installation.

Q’ty

ShapePart

each

Part Shape Q’ty

Optional Accessories

The accessories listed below are not

included with the units, but may be necessary

for installation.

Quick Connect Cord

(QC-2)

Q’ty

ShapePartPart Shape Q’ty

Remote Controller

Cord (26ft (8m))

each

Isolation Valves*

(includes pressure

relief valve)

Pipe Cover

(PC-7S)

Owner's Guide, Warranty,

Installation Manual

(this document)

System Controller Unit

SCU-301-12M

SCU-401-12M

SCU-401-24M

System Controller

(SC-301-6M, SC-401-6M)

Anchoring Screw 7

Remote Controller Remote Controller

Cord (6ft (2m))

Neutralizer

(NT20A)

(For up to 10 water heaters)

* Isolation valves are necessary for ushing the Heat Exchanger.

They allow for easy ushing of the system.

Noritz Connect

Wireless Adapter

NWC-ADAPTER

(NAW-1 US)

To drain outletTo drain outlet

To drain outlet

Cold Water

Hot Water

Quick Connect Cord

Union

Gas Valve

Pressure

Relief Valve

Isolation Valve*

* Isolation valves are

necessary for flushing

the Heat Exchanger.

They allow for

easy flushing of

the system.

Make this distance as

short as possible.

The hot water temperatur

will become unstable as

the pipe length increases.

Size the piping to allow for the

maximum flow rates of the units.

The backflow preventer should be placed

upstream of the cold water branch.

Leave enough clearance around the plumbing to apply insulation.

It will be necessary to add bends to the piping to ensure

that this clearanceis available.

Distance on sides

3-17" (75-432mm)

Quick Connect

Cord

Remote Controller Cord

Gas Supply Piping

Cold Water Supply

Hot Water

Remote Controller

Terminal Block

Cord

Connector

Cord

Connector

Quick Connect Multi System Installation

• The Quick Connect Multi System allows the installation of two units together utilizing only the Quick

Connect Cord.

Typical Plumbing

* When connecting two units, use only a

single remote controller.

System Diagram

• Insulate the hot water piping to prevent heat loss. Insulate and apply heating materials to the

cold water supply piping to prevent heat loss and freezing of pipes when exposed to excessively

cold temperatures.

The Quick Connect Cord is 6 ft.(2m) long. Install the units 3-17" (75 - 432mm) apart from each

other to ensure the cord will be able to reach between the units. (See Typical Plumbing diagram).

(If the distance between the two units is too great, not only will the cord not be able to reach,

but the water temperature may also become unstable because of the difference in pipe length

between the two units).

Note: Connect the remote

controller to only one

of the units.

Units must be same

model in order to

quick connect.

Check the Gas

• Check that the rating plate indicates the correct type of gas.

• Check that the gas supply line is sized for

300,000 Btuh.

Check the Power

• The power supply required is 120VAC, at 60Hz.

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 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.

Precautions for Mobile Home Installation

• Verify that the gas supply type matches the gas type listed on the rating plate. If a gas conversion

must be done, follow the instructions listed in the gas conversion kit manual.

4. Before Installation

Do 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 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.

WARNING

CAUTION

5. Choosing Installation Site

DANGER

Indoor

• This water heater is for outdoor installation only.

Never install it indoors.

Do not enclose the termination with corrugated

metal or other materials.

This will cause carbon monoxide

poisoning and a potential re

hazard.

* Locate the appliance in an area where leakage from the unit or connections will not result in damage

to the area adjacent to the appliance or to the lower oors of the structure. When such installation

locations cannot be avoided, a suitable drain pan, adequately drained, must be installed under the

appliance. The pan must not restrict combustion air ow.

* As with any water heating appliance, the potential for leakage at some time in the life of the product

does exist. The manufacturer will not be responsible for any water damage that may occur.

• Avoid places where res are common, such as those where gasoline,

benzene and adhesives are handled, or places in which corrosive gases

(ammonia, chlorine, sulfur, ethylene compounds, acids) are present.

Using the incorrect voltage may result in re or cracking.

• Avoid installation in places where dust or debris will accumulate.

Dust may accumulate and reduce the performance of the unit's fan.

This can result in incomplete combustion.

• Avoid installation in places where special chemical agents

(e.g., hair spray or spray detergent) are used.

Ignition failures and malfunction may occur as a result.

• Carbon Monoxide Poisoning Hazard. Do not install this water heater in a

recreational vehicle or on a boat.

• Install the water heater in a location where it is free from obstacles and stagnant air.

• Consult with the customer concerning the location of installation.

• Do not install the water heater near staircases or emergency exits.

• Do not install the water heater where the exhaust will blow on outer walls or material not resistant

to heat. Also consider the surrounding trees and animals.

The heat and moisture from the water heater may cause discoloration of walls and resinous materials,

or corrosion of aluminum materials.

• Do not locate the vent termination directed towards a window or any

other structure which has glass or wired glass facing the termination.

• Install in a location where the exhaust gas ow will not be affected by

fans or range hoods.

• Take care that noise and exhaust gas will not affect neighbors.

Avoid installation on common walls as the unit will make some

operational noises while it is running.

• Avoid installation where the unit will be exposed to excessive winds.

• Before installing, make sure that the vent termination will have the proper

clearances according to the National Fuel Gas Code (ANSI Z223.1-latest

edition) or the Natural Gas and Propane Installation Code (CSA B149.1).

• If the unit is installed in a location with very high humidity, condensate may form inside the unit and/or

cause incomplete combustion, damage to the electrical components, or electric leakage.

Prohibited

WARNING

CAUTION

Prohibited

State of California: The water heater must be braced, anchored or strapped to avoid moving during

an earthquake. Contact local utilities for code requirements in your area or call: 1-866-766-7489 and

request instructions.

The Commonwealth of Massachusetts:

1) This water heater can only be used in outdoor applications if the usage is restricted to summertime

usage exclusively.

The water heater can be used for hot water only and not in a combination of domestic and space heating.

6. Installation Clearances

Before installing, check for the following:

Install in accordance with relevant building and mechanical codes, as well as any local, state or

national regulations, or in the absence of local and state codes, to the National Fuel Gas Code

ANSI Z223.1/NFPA 54 – latest edition. In Canada, see the Natural Gas and Propane Installation

Code CSA B149.1 - latest edition for detailed requirements.

WARNING

Item Check

• When installing the unit on a balcony, etc., secure an

evacuation route of 24" (600mm) or more in width.

• Provide clearance of 24" (600mm) or more in front of

the unit to facilitate inspection and repair. Do install the

unit in a location where the unit is out of reach, such as

the wall of the second oor.

• When installing the unit in a common side corridor, provide

a clearance of 47" (1,190mm) or more in front of the unit.

• Set the bottom edge of the exhaust port about

84" (2,130mm) from the corridor oor.

Handrail

common side

corridor

balcony, etc.

Handrail

about 84"

(2,130mm)

• Maintain the following clearance from both combustible

and non-combustible materials. 24" (600mm)

or more

36" (900mm)

or more

Surrounding the area of installation

24" (600mm)

or more

47" (1,190mm) or more

Required Clearances From Heater

Illustration

6" (150mm)

or more

Clearance Requirements from Vent Terminations to Building Openings

* All clearance requirements are in accordance with ANSI Z21.10.3 and the National Fuel Gas Code,

ANSI Z223.1 and in Canada, in accordance with the Natural Gas and Propane Installation Code

CSA B149.1.

DescriptionRef

Clearance above grade, veranda, porch,

deck, or balcony

Clearance to window or door that may

be opened

Clearance to permanently closed window

Vertical clearance to ventilated soffit located

above the terminal within a horizontal distance

of 2 feet (61 cm) from the center line of the terminal

Clearance to unventilated soffit *

Clearance to outside corner *

Clearance to inside corner *

Clearance to each side of center line

extended above meter/regulator assembly

Clearance to service regulator vent outlet

Clearance to nonmechanical air supply

inlet to building or the combustion air inlet

to any other appliance

Clearance to a mechanical air supply inlet 6 ft (1.83 m)

Clearance above paved sidewalk or paved

driveway located on public property

Clearance under veranda, porch, deck,

or balcony

7 ft (2.13 m)†

In accordance with the current CSA B149.1 Natural Gas and Propane Installation Code

In accordance with the current ANSI Z223.1 / NFPA 54 National Fuel Gas Code

† A vent shall not terminate directly above a sidewalk or paved driveway that is located between two single

family dwellings and serves both dwellings.

‡ Permitted only if veranda, porch, deck, or balcony is fully open on a minimum of two sides beneath the floor.

* Clearance in accordance with local installation codes and the requirements of the gas supplier.

Clearance to opposite wall is 24 inches (60 cm).

12 in (30 cm)‡

12 in (30 cm)

6 in (15 cm) for appliances

≤ 10,000 Btuh (3kW), 12 in

(30 cm) for appliances > 10,000

Btuh (3kW) and ≤ 100,000 Btuh

(30 kW), 36 in (91 cm) for

appliances > 100,000 Btuh (30 kW)

Above a regulator within 3 ft (91 cm)

horizontally of the vertical center line of

the regulator vent outlet to a maximum

vertical distance of 15 ft (4.5 m)

4 ft (1.2 m) below or to side

of opening; 1 ft (300 mm)

above opening

6 in (15 cm) for appliances

≤ 10,000 Btuh (3kW), 12 in

(30 cm) for appliances > 10,000

Btuh (3kW) and ≤ 100,000 Btuh

(30 kW), 36 in (91 cm) for

appliances > 100,000 Btuh (30 kW)

4 ft (1.2 m) below or to side

of opening; 1 ft (300 mm)

above opening

3 ft (91 cm) above if within

10 ft (3 m) horizontally

12 in (30 cm)

US Non-Direct Vent Installation

Canadian Non-Direct Vent Installation

Vent Terminal

Air Supply Inlet

Area Where Terminal

is Not Permitted

Illustration

7. Installation

Check

4. Drill holes for the remaining four screws.

5. Hang the unit again by the rst screw, and then

insert and tighten the remaining four screws.

6. Take waterproong measures so that water does

not enter the building from screws mounting the

device.

• Make sure the unit is installed securely so that it will

not fall or move due to vibrations or earthquakes.

Securing to the wall

1. Drill a single screw hole, making sure to hit a stud.

2. Insert and tighten the screw and hang the unit by

the upper wall mounting bracket.

3. Determine the positions for the remaining four screws

(two for the top bracket and two for the bottom), and

remove the unit.

• The weight of the device will be applied to the wall. If the strength of the wall is not

sufcient, reinforcement must be done to prevent the transfer of vibration.

• Do not drop or apply unnecessary force to the device when installing. Internal parts may

be damaged and may become highly dangerous.

• Install the unit on a vertical wall and ensure that it is level.

Locating Screw Holes

Mounting

Structure

• When installing with bare hands, take caution to

not inict injury.

• Be careful not to hit electrical wiring, gas, or water

piping while drilling holes.

Item

CAUTION

Be sure to do

Mounting Bracket

(upper)

Anchoring Screw

Location of Screw Hole

Locating Screw Holes

Installations at Elevations

Above 2,000 ft.

• Adjust the dip switches as illustrated in the table to

the right if this water heater is installed at an altitude

of 2000 ft. (610m) or higher.

• Disconnect power to the water heater before

changing the dip switches. Failure to perform this

step will result in a "73" code displayed on the remote

controller and a cease in operation. If this occurs,

disconnect, then reconnect power to the water heater

to reset the system.

Note : Please refer to page 25 for the location of the

dip switch bank.

* Do not change any other dipswitches.

* High elevation adjustment.

2,001 - 4,500 ft (611 - 1,350m)

0 - 2,000 ft (0 - 610m)

ON=OFF=

Follow the instructions from the gas supplier.

8. Gas Piping

Gas Type

The gas type indicated on the water heater rating plate (NG or LP) must match the type of gas being

supplied to the water heater.

Gas Conversions

If the gas type supplied does not match the gas type on the rating plate, obtain a replacement unit with

the proper gas type.　If a gas type conversion must be made, there are conversion kits available for

some models. [The conversion kit shall be installed by a qualied service agency in accordance with

the manufacturer’s instructions and all applicable codes and requirements of the authority having jurisdiction.

The qualied service agency is responsible for the proper installation of this kit. Improper installation of

this kit will void the warranty.]

Meter

The gas meter must be sized properly for the water heater and other gas appliances to operate properly.

Select a gas meter capable of supplying the entire btuh demand of all gas appliances in the building.

The guidelines and examples we have provided in this manual section are for reference only.

The sizing and installation of the gas system for this water heater, as with any gas appliance, is the

sole responsibility of the installer. The installer must be professionally trained to do such work and

must always follow all local and national codes and regulations. Gas line sizing calculations must

be performed for every installation. Please contact Noritz America at 866-766-7489 if you have any

questions or concerns.

CAUTION

Regulators

Ensure that all gas regulators used are operating properly and providing gas pressures within the specied

range of the water heater being installed. Excess gas inlet pressure may cause serious accidents.

CAUTION

Pressure

Check the gas supply pressure immediately upstream at a location provided by the gas company.

Sup-

plied gas pressure must be within the limits shown in the specications section with all gas appliances

operat-

ing. The inlet gas pressure must be within the range specied. This is for the purposes of input

adjust-

ment. Low gas pressure may cause a loss of ame or ignition failure at other appliances in the home, which

may result in unburned gas in the home. Serious accidents such as re or explosion may result.

Measuring Gas Pressure

In order to check the gas supply pressure to the unit, a tap is provided on the

gas inlet. Remove the 9/32” hex head/Philips screw from the tap, and connect

a manometer using a silicon tube. Open up at least 2 xtures and hold in the

maximum manifold pressure button on the circuit board. Please call Noritz for

details.

WARNING

Pressure Test

The appliance and its gas connections must be leak tested before placing the appliance in operation.

The appliance must be isolated from the gas supply piping system by closing its individual manual

shutoff valve during any pressure testing of the gas supply piping system at test pressures equal to

or less than ½ psig (3.5 kPa). We do not recommend pressure testing in excess of ½ psig (3.5kPa).

If it must be done, the appliance and its individual shutoff valve must be completely disconnected

from the gas supply piping system during the test process.

Pipe Sizing/Flexible Connectors

A gas shutoff valve must be installed on the supply line. Gas ex lines are not recommended unless

the minimum inside diameter is ¾” or greater and the rated capacity of the connector is equal to or

greater than the BTU capacity of the water heater. Gas piping shall be in accordance with local utility

company requirements and/or in the absence of local codes, use the latest edition of National

Fuel Gas Code (NFPA54GC), ANSI Z223.1. In Canada, use the latest edition of CSA B149.1,

National Gas and Propane installation code. Size the gas line according to total btuh demand

of the building and length from the meter or regulator so that the following supply pressures are

available even at maximum demand.

WARNING

Natural Gas Supply Pressure

Min 5 ” WC

Max 10.5” WC

LP Gas Supply Pressure

Min 8” WC

Max 14” WC

Reference Tools & Sample Calculations

The tables and samples below are for reference only. The professional sizing and installing the gas

line should always run the appropriate calculations before all installations.

CAUTION

Which Table to Use

• For NG installations with the initial supply pressure at point of delivery (at the meter, for example) is

less than 8” WC, use the 0.5” WC pressure drop table (Table 1).

• For NG installations with the initial supply pressure at point of delivery is greater than or equal to 8”

WC, use the 3.0” pressure drop table (Table 2).

• For all LP installation use (Table 3)

The inlet pressure must be at least 5” WC for NG or 8” WC for LP for all appliances in the gas system.

If the inlet gas pressure drops below 5” WC for NG or 8” WC for LP, the heater may continue to operate,

but the other appliances in the house may experience ame loss or ignition failure, which can result in gas

leakage into the home. Refer to the NFPA 54 for details.

Please contact Noritz for details. For corrugated stainless steel tubing (CSST) capacity tables, please

consult with the manufacturer.

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