Bradford White LAARS NEOTHERM LC NTH1200 Bedienungsanleitung

User’s Manual Doc. 1256A

H2353000A

FOR YOUR SAFETY: This product must be installed and serviced by a professional service

technician, qualied in hot water boiler and heater installation and maintenance. Improper installation

and/or operation could create carbon monoxide gas in ue gases which could cause serious injury,

property damage, or death. Improper installation and/or operation will void the warranty.

User’s Manual for

NEOTHERM

Modulating Boiler Water Heater

Model NTH1000 Model NTV1000

1,000 MBTU/h 1,000 MBTU/h

Model NTH1200 Model NTV1200

1,200 MBTU/h 1,200 MBTU/h

WARNING: If this Users Information

Manual not followed exactly, a re or explosion

may result causing property damage, personal

injury or death.

Do not store or use gasoline or other ammable

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 re

department.

Installation and service must be performed by

a qualied installer, service agency, or the gas

supplier.

AVERTISSEMENT: Si cette informa-

tion utilisateurs manuel n'a pas suivi exactement,

un incendie ou une explosion peut entraîner des

dommages matériels, des blessures ou la mort

Ne pas entreposer ni utiliser d’essence ni d'autres

vapeurs ou liquides inammables dans le voisinage

de cet appareil ou de tout autre appareil.

QUE FAIRE SI VOUS SENTEZ UNE ODEUR DE GAZ:

• Ne pas tenter d’allumer d’appareils.

• Ne touchez à aucun interrupteur. Ne pas vous servir

des téléphones dans le bâtiment où vous vous

trouvez.

• Appelez immédiatement votre fournisseur de

gaz depuis un voisin. Suivez les instructions du

fournisseur.

• Si vous ne pouvez rejoindre le fournisseur de gaz,

appelez le service des incendies.

L’installation et l’entretien doivent être assurés par un

installateur ou un service d’entretien qualié ou par le

fournisseur de gaz.

NeoTherm LC Boilers and Water Heaters

Page 1

Location of Components

Identical for both the 1000 and 1200

Pressure and

Temperature

Gauge

Manual

Gas Valve

User Interface

Protective

Cover

Power Switch

FAMILIARIZING YOURSELF WITH THE

HERM

CONTENTS

Familiarizing yourself with the Laars NeoTherm LC.........1

FOR YOUR SAFETY,

PLEASE READ THIS BEFORE OPERATING.................2

What to Do If You Smell Gas.............................................2

POUR VOTRE SÉCURITÉ,

LISEZ AVANT DE METTRE EN MARCHE........................3

Que Faire si Vous Sentez une Odeur de Gaz ......................3

Lighting the Unit.................................................................4

Turning Off the Gas to the Unit..........................................4

Instructions de Mise en Marche..........................................5

Fermeture de l’Alimentation en Gaz...................................5

Shutting Down the NeoTherm LC......................................6

Restarting the NeoTherm LC..............................................6

In the Event of Power Failure.............................................6

THE USER INTERFACE AND INDICATORS.................7

About Lockouts, Holds, and Alerts.....................................9

Care, Inspection, and Service............................................10

LAARS Heating Systems

Page 2

FOR YOUR SAFETY -

PLEASE READ THIS BEFORE OPERATING

WARNING

If you do not follow these instructions exactly, a re or explosion may result,

causing property damage, personal injury or loss of life.

A. This unit does not have a pilot. It is equipped with an ignition device which automatically lights the burner.

Do not try to light the burner by hand.

B. Before operating the unit, check for any smell of gas in the area around it. Be sure to smell next to the

oor, because some gas is heavier than air and will settle near the oor.

C. Use only your hand to turn the handle on the gas valve. Never use tools. If the valve handle will not turn

by hand, don’t try to repair it. Call a qualied service technician. If you force the valve or try to repair it,

this may result in a re or explosion.

D. Do not use this unit if any part has been under water. Immediately call a qualied service technician to

inspect the unit. Any part of the control system or any gas control which has been under water must be

replaced.

WHAT TO DO IF YOU SMELL GAS

·Do not try to light any appliance or device that uses gas.

·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 re department.

NeoTherm LC Boilers and Water Heaters

Page 3

POUR VOTRE SÉCURITÉ,

LISEZ AVANT DE METTRE EN MARCHE

AVERTISSEMENT

Quiconque ne respecte pas à la lettre les instructions dans la présente notice

risque un début d’ incendie ou une explosion entraînant des dommages, des

blessures ou la mort.

A. Cet appareil est muni d’un dispositif d’allumage qui allume automatiquement la veilleuse. Ne tentez pas

d’allumer la veilleu manuellement.

B. Avant de faire fonctionner, reniez tout autour de l’appareil pour déceler une odeur de gaz. Reniez

près du plancher, car certains gaz sont plus lourds que l’air et peuvent s’accumuler au niveau du sol.

C. N’utilisez que votre main pour fermer la soupape d’arrêt de gaz. N’utilisez jamais d’outils. Si la poignêe

de la valve ne tourne pas manuellement, ne tentez pas de la réparer. Communiquez avec un technicien

de service qualié. Le fait de forcer ou de tenter de réparer la poignée pourrait causer un incendie ou une

explosion.

D. N’utilisez pas cet appareil s’il a été plongé dans I’eau, même partiellement. Faites inspecter I’appareil

par un technicien qualié et remplacez toute partie du système de contrôle et toute commande qui ont été

plongées dans I’eau.

QUE FAIRE SI VOUS SENTEZ UNE ODEUR DE GAZ

·Ne pas tenter d’allumer d’appareil.

· Ne toucher à aucun interrupteur; ne pas vous servir des téléphones se trouvant dans le bâtiment.

· Appelez immédiatement votre fournisseur de gaz depuis un voisin. Suivez les instructions du fournisseur.

·Si vous ne pouvez rejoindre le fournisseur, appelez le service des incendies.

LAARS Heating Systems

Page 4

9. Replace the front panel.

10. Turn ON the electric power to the unit.

11. Set the thermostat to the desired setting.

12. If the unit will not operate, follow the instructions in “Turning Off the Gas to the Unit” and

call your service technician or gas supplier.

TURNING OFF THE GAS TO THE UNIT

1. Before doing any service work, turn off all electric power to the unit.

2. Set the thermostat to the lowest setting.

3. Remove the front access panel.

The valve is top left on the back

4. Turn OFF the manual gas valve. The valve is off when the valve handle is at a right angle to

the gas pipe.

5. Replace the front panel.

LIGHTING THE UNIT

1. STOP! Read the safety information on the previous pages rst!

2. Set the thermostat to the lowest setting.

3. Turn off all electric power to the unit.

4 This unit is equipped with an ignition device which automatically

lights the burner. Do not try to light the burner by hand.

5. Remove the front access panel.

The valve is top left on the back

6 Turn OFF the manual gas valve. The valve is off when the valve

handle is at a right angle to the gas pipe.

7. Wait ve minutes to allow any gas to clear. Smell for gas,

including the area near the oor. If you do smell gas, STOP!

Follow Step B in the safety information listed above. If you don’t

smell gas, go to the next step.

8. Slowly turn the manual gas valve to “ON.” The handle on the

valve will be parallel to the gas pipe.

Gas inlet

Manual gas valve

shown in the

Off position

NeoTherm LC Boilers and Water Heaters

Page 5

Entrée

de gaz

Valve de gaz manuel le se

trouvant en position„OFF”.

8. Remettez lentement la soupape d’arrêt de gaz en position „ON”. La poignée sera

parallèle au tuyau de gaz.

9. Remplacer le panneau d’accès avant

10. Rétablissez l’alimentation électrique à l’appareil.

11. Réglez le thermostat à la température désirée.

12. Si l’appareil ne fonctionne pas, suivez les directives relatives à la fermeture de

l’alimentation en gaz et communiquez avec votre technicien de service ou le

fournisseur de gaz.

FERMETURE DE L’ALIMENTATION EN GAZ

1. Coupez toute alimentation électrique à l’appareil si celui-ci doit faire l’objet d’un

entretien.

2. Réglez le thermostat au réglage le plus bas.

3. Déposer le panneau d’accès avant.

La vanne est en haut à gauche à l’arrière

4. Mettez la soupape d’arrêt de gaz à „OFF”. La valve est en position „OFF“ lorsque la

poignée se trouve à angle droit du tuyau de gaz.

5. Remplacer le panneau d’accès avant

INSTRUCTIONS DE MISE EN MARCHE

1. ARRÊTEZ ! Lisez les informations de sécurité sur les pages

précédentes première !

2. Réglez le thermostat à la temperature la plus basse.

3. Coupez l’alimentation électrique de l’appareil.

4. Cet appareil est dote d’un dispositif d’allumage qui allumera

automatiquement le brûleur. Ne tentez pas d’allumer le brûleur

manuellement.

5. Déposer le panneau d’accès avant.

La vanne est en haut à gauche à l’arrière

6. Mettez la soupape d’arrêt de gaz à „OFF”. La valve est en position

„OFF” lorsque la poignée se trouve à angle droit du tuyau de gaz.

7 Attendez cinq minutes an que le gaz se dissipe. Si vous croyez

sentir une odeur de gaz, ARRÊTEZ ! Reportez-vous aux instructions

B ci-dessus, sur cette étiquette. S’il n’y a pas d’odeur de gaz, passez

à la prochaine étape.

LAARS Heating Systems

Page 6

SHUTTING DOWN THE NEOTHERM LC

It may sometimes be necessary to shut down the NeoTherm LC. Here are the steps required to do this:

1. Switch off the main electrical disconnect switch.

2. Remove the front access panel and close the main manual gas valve.

Turn OFF the main manual gas valve. The valve is top left on the back.

3. If freezing is anticipated, drain the NeoTherm LC. (Also be sure to protect the piping in the building

from freezing.)

The steps listed above may require qualied service personnel.

RESTARTING THE NEOTHERM LC

It may be necessary to restart the NeoTherm LC – for example, after a power interruption. Here are the steps

required to do this:

1 Reset any errors using the user interface. See the section on “About Lockouts, Holds, and Alerts.”

2 Turn up the thermostat to call for heat.

3. In approximately 2 seconds, the blower will operate. Ignition should occur after 35-40 seconds. It may

take as long as 2-1/2 minutes.

4. If ignition does not occur, wait 5 minutes and then repeat steps 1 through 3.

5. If, after three attempts, the unit still does not light, shut down the boiler and call your service technician.

If the unit has been drained, follow these steps:

1. See the “Installation and Operation Manual” for instructions on lling and purging the unit.

2. Remove the front access panel and turn ON the main manual gas valve.

Turn OFF the main manual gas valve. The valve is top left on the back.

3. Switch on the main electrical disconnect switch. The pump and blower will start, and the igniter will be

energized. After 35 seconds the gas valve will be energized, and ignition will occur. If ignition does not

occur within 2-1/2 minutes switch “off” the main disconnect switch, wait 5 minutes and switch it “on”

again. If after three attempts ignition does not occur, shut down the unit and call for service.

IN THE EVENT OF POWER FAILURE

The NeoTherm LC will not operate during an electrical power outage. If there is an extended power outage

with danger of freezing, then the NeoTherm LC (and all other water systems) should be completely drained.

Before draining the unit, turn off the gas and turn off the main power switch. When you replace the unit in

service, refer to the “Installation and Operation Manual” for instructions on lling and purging.

NeoTherm LC Boilers and Water Heaters

Page 7

On/Off

switch

User

Interface

Boiler

outlet

temperature

and system

pressure

CONTROLS AND INDICATORS

Each NeoTherm LC includes two burners, and each of these burners has a separate burner controller. A

complete system can include up to four boilers, with up to eight burners and eight burner controllers. All

managed through one (1) User Interface on the Lead boiler.

After the system starts, the User Interface Panel will automatically present the Home screen:

The icon for each burner controller will appear in one of four colors:

Blue Normal operation

Red Lockout

Gray Standby mode (Burner switch off)

Gray and

crossed out Communication problem

Yellow Hold state. This could beAnti short

cycle, fan speed transitions, etc.

User Interface

LAARS Heating Systems

Page 8

The operation of the whole system is supervised by the “Lead/Lag” control function. To monitor the

operation of the Lead/Lag system, press the View Lead/Lag button on the Home screen.

In the ‘Lead Lag Master’example shown above, the complete system includes one boiler, with two

burners.

To check the operation of an individual burner, press one of the large icons on the Home screen. The

system will present a Status Summary screen for that burner:

The Lead/ Lag Master button will also get you to some additional information about the system:

The yellow box in the upper right corner shows the setpoint, and the line above that shows the current

temperature.

NeoTherm LC Boilers and Water Heaters

Page 9

ABOUT LOCKOUTS, HOLDS, AND ALERTS

The system responds to three kinds of trouble indications:

• A”lockout” is caused by a serious problem that might involve a safety issue. Once

the controller enters a lockout, the burners will shut down, and will not be allowed

to run again until the cause of the problem is corrected, and you reset the control

system.

• The system may enter a “hold” for a period of time before locking out. This allows

the controller to see if the error becomes resolved prior to the hard lockout.

• An “alert” indicates that some feature of the control system’s operation was not

correct, delayed, or waiting for a response. This does not necessarily indicate a

problem.

If a problem occurs while the system is starting up, the system will declare a Hold or

Lockout:

If a problem occurs while the system is running, a Bell symbol will appear in the upper

left corner of the screen, and the system will present a note across the bottom of the

screen. If you tap the bar which includes the message, the system will present more

information about the problem. Press the OK button to indicate that you have seen the

Lockout or Alert.

If an audible alarm on the display is active, tap the Bell symbol to stop it.

Each error message includes a number. For a more detailed description of each message,

see the “Installation and Operation Manual.”

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